八年级英语寒假练习题
班级___________ 姓名____________
练习一(8A Unit 1)
一、单项填空
( )1. I?m very ________. Could you please get me some water?
A. hungry
B. happy
C. ill
D. thirsty
( )2. ________ playing chess after school?
A. Let?s
B. What about
C. Why not
D. Don?t
( )3. She is ________ honest girl.
A . a B. / C. an D. the
( )4. Li Lei is one of ________ in our class.
A. best students
B. a good student
C. the best students
D. good students
( )5. She sings very well, because she has a good ________.
A. voice
B. noise
C. sound
D. face
( )6. No one plays with him, so he feels very ________.
A. happy
B. happily
C. bored
D. boring
( )7. His elder brother is good ________ skating.
A. for
B. at
C. in
D. to
( )8. — ________ is your height？—180 cm.
A. How
B. What
C. Ho w long
D. How far
( )9. Jack is as ________ as his best friend.
A. more hard-working
B. hard work
C. most hard-working
D. hard-working
( )10. —What?s your best friend like？—He is ________ .
A. healthy
B. friendly
C. fat
D. happy
( )11. Mo Yan is an ________ writer.
A. excellent
B. useful
C. famous
D. great
( )12. This ________ man is our English teacher.
A. beautiful
B. pretty
C. outgoing
D. handsome
( )13. I think maths is ________ than Chinese.
A. more difficult
B. difficult
C. hard
D. easy
( )14. Who is ________ swimmer, Peter, Simon or Millie?
A. fast
B. the fastest
C. best
D. better
( )15. Would you like ________ tea?
A. some
B. any
C. many
D. a
二、完形填空
Tina and Tara are twin sisters. They look 1 . 2 they also have some differences. One day their grandfather came to see them with two gifts (礼物). When he came into the house, he saw Tina and 3 her a gift. After a while, when he got into the garden, he saw 4 granddaughter “Tara”. In fact that was Tina. When he gave the other gift to her, she said, “You gave me one just now.” “No, I gave a gift to your sister Tina.” “Oh, grandfather, I?m Tina.” Just then Tara came into the garden 5. “N ow, grandfather, can you tell the differences 6 us?” “No, I can?t. Can you 7 me?” “Yes, look. Tara is a little 8 than me. Her hair is longer and curlier than 9. Now, grandfather, can you see?” “Yes, now I can tell you from Tara. Tara, here is the gift for you.” “Thank you 10 your gift, grandfather.” With these words, they all laughed happily.
( )1. A. same B. the same C. different D. differences
( )2. A. And B. So C. But D. Because
( )3. A. gave B. took C. brought D. got
( )4. A. others B. another C. the other D. the others
( )5. A. either B. so C. also D. t oo
( )6. A. as B. between C. from D. with
( )7. A. tell B. say C. talk D. ask
( )8. A. tall B. taller C. tallest D. the tallest
( )9. A. I B. me C. my D. mine
( )10. A. with B. of C. for D. t o
三、阅读理解
Once Mr King had a cat, and he loved it very much. He called it “Sky”, because he thought “Sky” was the strongest name in the world.
One day he had a meal at a restaurant with his cat. He met his old friend. He told him about his lovely cat and its name. His friend said, “How foolish you are! Sky is not the strongest thing in the world. My cat is called …Cloud? because cloud is stronger than sky.” After hearing this, Mr King called his cat “Wind” because he thought wind was stronger than cloud.
After a few days he suddenly（突然）thought that “Wall” was stronger than wind. And “Mouse (老鼠)” was stronger than wall. So he went to his friend to ask for an idea. His friend said, “Don?t you think …Cat? is stronger than mouse？” “Yes, but...”
The man thought and thought and then decide d his cat?s name had better be “Cat” because a mouse was always afraid of a cat. Don?t you think Mr King is very silly (傻的) or funny?
( )1. Mr King ________ his cat very much.
A. didn?t like
B. loved
C. hated
D. hit
( )2. His cat?s first name was ________.
A. Sky
B. Cat
C. Wind
D. Cloud
( )3. He decided his cat?s last name was ________.
A. Mouse
B. Wall
C. Cloud
D. Cat
( )4. Mr King called his cat “Cat” because he thought ________ .
A. a cat was always afraid of a mouse
B. he liked this beautiful name
C. the name had more meanings
D. a mouse was always afraid of a cat
( )5. Mr King gave his cat ______ names in all (总共) and at last he called it “Cat”.
A. six
B. five
C. four
D. two
四、词汇
1. The teacher is very p___________ with his students. He always explains (讲解) difficult questions
very carefully.
2. My father is very good at swimming. He is a good s____________.
3. I trust him very much, because he can keep s__________ for you, and he never tells others.
4. He is very _____________ (礼貌的) to teachers.
5. Lucy is a ____________ (爱整洁的) girl.
6. This book is _____________ (interest) than that one.
7. Peter is ______________ (heavy) of the three boys.
8. He is willing to _____________ (go) there with us.
9. She wants to be a ______________ (sing).
10. Town Cinema i s ______________ (bad) of all.
五、完成句子
1.他长大后想当一名教师。
He _______________________________ when he __________________________________ .
2.他不喜欢和别人交朋友。
He doesn?t like to _____________________________________________________________.
3.这个男孩从不撒谎。
The boy ____________________________________________________________________.
4.他没有时间关心他的孩子。
He has ____________________________________________________________ his children.
5.他是我们学校最受欢迎的老师之一。
He is _____________________________________________________________ in our school.
练习二(8A Unit 2)
一、单项选择
( )1. Every morning I spend one _________ hours _________ English.
A. half an; to read
B. and an half; to read
C. and half; reading
D. and a half; reading ( )2. Most students think they should have _________ time and energy to develop their own interests.
A. few
B. less
C. little
D. more
( )3. Why not _________ an English Club to practice ___________ English?
A. join; speaking
B. to join; speaking
C. join; to speak
D. to join; to speak
( )4. The __________ you eat, the ___________ you will be.
A. more healthily; more healthily
B. more healthily; healthier
C. healthier; healthier
D. healthier; more healthily
( )5. I have two cats. One is black, and ____________ is white.
A. another
B. some
C. other
D. the other
( )6. —The cookies ___________ good. Could I have some more? —Sure.
A. taste B smell C. feel D. sound
( )7. People in Britain say “football” while people in the USA say “_______”.
A. American football
B. soccer
C. baseball
D. erase
( )8. —Which is __ season in Beijing? —Of course autumn.
A. good
B. better
C. best
D. the best
( )9. American students have __________ weeks ________ in the summertime than Chinese students.
A. more; on
B. less; on
C. more; off
D. less ;off
( )10. —Are there any students in the hall?
—Yes, there are some. And _______ of them has some flowers in the hands. They are dancing.
A. every
B. each
C. both
D. all
( )11. ___________ most students, he never comes to school late.
A. Like
B. As
C. For
D. To
( )12. Millie has _________ free time than Sandy because she has _________ work to do than Sandy.
A. less; more
B. fewer; more
C. least; most
D. fewest; most
( )13. This classroom is bigger than ____________ in the building.
A. any one
B. all these ones
C. any other one
D. all ones
( )14. One of my _____________ is clean, but ____________ one isn?t.
A. foot; other
B. feet; the other
C. foot; the other
D. feel; other
( )15. This kind of fruit _____________.
A. taste sweetly
B. looks well
C. sounds beautiful
D. tastes delicious
二、完形填空
After growing up
Many kids think they are 1 . They think they aren?t the prettiest or the smartest. At the same time, they think they aren't the ugliest or the silliest, which would at least make them stand out (突出). Everyone thinks in that way sometimes,
2 in middle schools. Kids
3 realize how special they are.
It is 4 growing up. Growing up mean understanding what you can offer the world. When you?re young, you realize that just by being yourself, you do offer 5 to other people. Maybe you aren?t the best, but that doesn?t make you “not amazing”.
Do yourself a favour. Think about your friends carefully. Write down a list of things that you like. Think about 6 you make friends with them. You will 7 know that in the end. Though they aren?t the smartest or the prettiest or 8 talented, they are great in their own ways. And they feel just the same 9 you!
Remember: It gets easier as you grow older. If you try your best, you are still pretty 10 . ( )1. A. special B. ordinary C. unusual D. ugly
( )2. A. especial B. especial C. more often D. often
( )3. A. often B. more often C. not often D. seldom
( )4. A. part of B. one of C. some D. about
( )5. A. anything B. everything C. something D. nothing
( )6. A. reason B. season C. where D. why
( )7. A. get to B. got to C. have to D. getting to
( )8. A. / B. more C. most D. the most
( )9. A. as B. to C. from D. for
( )10. A. smart B. amazing C. clever D. well
三、阅读理解
There would be a school party on Friday evening. The girls were talking about what they were going to wear.
“I?m going to wear a black dress, so everybody will notice me,” said Emily.“How about you, Linda?”
“I?m not sure. Maybe jeans, an old shirt, and a hat. People will notice me more than you!” Linda said.
“But what are the boys going to do at the party?" asked Jane. “Do you remember the school party last year? They just stood there, and we girls had to dance by ourselves!”
“I hear that some of the boys learned how to dance this summer. Maybe it?ll be better this time,” said Mary.
The party was held on Friday evening, groups of students arrived. The music began. The girls stood in a line on one side, and the boys stood on the other side. Mr Green, their teacher, tried to get them together, but failed. After a while, Tim said, “I don?t want to stand here the whole time. The party is only for two hours. It?ll be over soon.” He started to dance. All the others watched him. Then David asked Emily if she wanted to dance. Then Jack and Linda. Then, all began to dance. Soon there were more dancers than watchers.
( )l. How long did the party last?
A. On Friday evening.
B. For one hour.
C. For two hours.
D. For three hours. ( )2. What kind of clothes was Emily going to wear?
A. A black dress.
B. Jeans.
C. An old shirt.
D. Jeans, an old shirt and a hat.
( )3. How did Emily and Linda dance in the school party last year?
A. They danced by themselves.
B. They danced with the boys.
C. They didn't dance.
D. They danced with their teachers.
( )4. What did the boys do during the summer holiday according to the passage?
A. They went swimming.
B. They learned to dance.
C. They watched TV.
D. They went climbing.
( )5. Which is not mentioned in this passage?
A. There would be a school party on Friday evening.
B. Their teacher asked them to dance together.
C. Jack and Linda danced together.
D. The boys and girls stood together and watched their teachers dance.
四、词汇
1. It?s your turn to give us a _____________ (日常的) report.
2. My sister likes wearing her ______________ (制服).
3. Who is good at _______________(棒球)?
4. Daniel went to bed after he _______________ (完成) doing his homework.
5. I think _______________ (物理) is more useful than other subjects.
6.They will stay here at ____________(little) two weeks.
7. Millie is a good student. She is in the ______________ (nine) grade this term.
8. We have __________ (more) weeks off in the summertime this term than last term.
9. Our school has a ______________ (read) Week every term.
10. _______________ (Britain) people like tea while American people love coffee.
11. The number of the students in our school ______________ (be) two thousand. 12. She can draw a horse in a minute. How ______________ (quick) she draws!
13. What do you ______________ (real) want to do?
14. Tom jumps ______________ (high) than any other of my classmates.
15. They enjoy _______________ (go) out for a visit every summer.
五、句型转换
1. Millie has more tomatoes than Tom. (划线提问)
___________ ___________ Millie ____________ more than Tom?
2. Chinese students spend the most time on homework. (同义句转换)
Chinese students ____________ the most time ___________ homework.
3. Daniel has more money than any other student in his class. (同义句转换)
Daniel has _____________ _____________ money in his class.
4. I study more subjects than Millie. (同义句转换)
Millie ___________ ___________ subjects than I.
5. Simon reads more books than Tom. (改为一般疑问句）
____________ Simon ____________ more books than Tom?
练习三(8A Unit 3)
一、单项选择
( )1. Some Chinese singers sing English songs just as _____ as native speakers do.
A. good
B. better
C. well
D. nice
( )2. —There is a smile on Miss Gao?s face. She must be _______ with Sam?s work.
—I think so. No one did as _______ as him in our class.
A. angry: well
B. pleasing; good
C. strict, good
D. pleased; well
( )3. My sister has practiced tennis for a long time. She plays tennis ________ you.
A. as good as
B. so well as
C. as well as
D. so good as
( )4. Nobody teaches me English. I learn it all by _______.
A. I
B. my
C. myself
D. me
( )5. —I?m afraid I'll fail in this exam.
—Come on, Philip. You must believe in _______. That?s the secret of success.
A. yourself
B. himself
C. herself
D. myself
( )6. Millie gave ________ a baby cat yesterday that hurt _________ when it fell from the tree.
A. me; it
B. myself; itself
C. me; itself
D. myself; it
( )7. There _______ a sports meeting in our school this weekend, isn?t there?
A. will be
B. is
C. will have
D. is going to be
( )8. Students should do eye __________ carefully to protect their eyes.
A. exercise
B. exercises
C. sport
D. sports
( )9. To keep __________, we need _________ regularly.
A. health, exercise
B. healthy, exercise
C. healthy, to exercise
D. healthy, exercise ( )10. —I heard that your brother got full marks in the English exam
—Oh, _________, you know that isn?t true! He doesn?t study hard.
A. come on
B. Really
C. That's good
D. just so-so
( )11. The match __________ on Sunday in our school.
A. comes out
B. takes place
C. take care
D. take down
( )12. I __________ my keys in the car and I couldn?t get into my house.
A. forgot
B. put
C. left
D. let
( )13. Don?t forget __________ off the lights when you leave the room.
A. to put
B. putting
C. to turn
D. turning
( )14. When you __________ there, you can call me.
A. get to
B. arrive at
C. reach
D. arrive
( )15. The song sounds __________. I like it very much.
A. well
B. good
C. badly
D. bad
二、完形填空
Traffic rules help to keep order on the road. They also help to keep people 1 . The pedestrian (行人) has as many rules to 2 as the driver of a car. You should wall on the sidewalk (人行道) or at the side of the road. Always look 3 before you wall across the street. If you like riding a bike, don't ride in the middle of the road or run 4 red traffic lights. When you ride a bike with a friend, don't look around or tall. If you drive a car, you should 5 at the traffic lights. You must always 6 a seat belt (安全带). Without belts 7 the driver and the passengers may be badly hurt in a sudden accident.
You may not need to take a bus, but 8 if you have to travel in one. Get on or get off a bus only when it comes to a 9 . When it is full, don't try to get inside 10 you may fall off.
Traffic rules are also called Road Safety rules.
( )1. A. healthy B. safe C. happy
( )2. A. follow B. make C. break
( )3. A. happy B. happily C. carefully
( )4. A. through B. across C. along
( )5. A. speed up B. go ahead C. slow down
( )6. A. take B. wear C. carry .
( )7. A. half B. none C. both
( )8. A. look around B. take care C. take a seat
( )9. A. Sign B. stop C. comer
( )10. A. and B. so C. or
三、阅读理解
One day in summer, little Jack was playing on the beach with his father. Suddenly, he saw a little tortoise moving slowly on the sand. H e started to look at it carefully and began to touch it with his hand. To his surprise, the tortoise stopped moving. It pulled in its head and legs，and closed its shell tightly. He touched it again but the tortoise didn't move at all. Jack became angry. He used a stick and tried to force it to open.
When his father saw this, he stopped him and said, “No, son, you mustn?t do that! You will kill the tortoise. You won?t get it open with a stick.” Jack was curious and asked, “Why?”
“Just wait and see,” his father replied. Then he picked up the tortoise and put it in a bag.
After they came back home, the father took the tortoise out of the bag. He put it near the fireplace (壁炉). After a few minutes, the tortoise began to move a little. Then the tortoise stretched out (伸出) its head and legs. At last, the tortoise began to crawl across the room. How excited Jack was when he saw this!
“Son，now you see,” said his father, “sometimes, you can?t force someone to do things he doesn?t like. But if you get him warm first, he will do what you want him to do.”
( )1. One day Jack and his father were playing __________.
A. on the beach
B. in the zoo
C. on the hill
D. in the garden
( )2. Jack used a stick to ___________ the tortoise.
A. save
B. feed
C. open
D. close
( )3. The father picked up the tortoise and ____________.
A. killed it
B. put it in a bag
C. cooked it
D. threw it into the sea
( )3. After the tortoise got __________ near the fireplace, it began to move a little.
A. warm
B. cool
C. thirsty
D. hungry
( )5. The story tells us that ____________>
A. people will do things We want them to do
B. peo ple won?t do things We want them to do
C. we can force people to do things they don?t like
D. we can?t force people to do things they don?t 1ike
四、词汇
1. Please help y ___________ to some fish, Tom. Don't be so shy.
2. I don't know what her interests are, because we talk __________ (主要地) about work when we.
3. I'm sure your cousins can do these exercises ___________ (自己).
4. Uncle said, what did you bring us from ___________ (澳大利亚)?
5. Now, Xi Jinping is the p___________ of China.
6. The road is only one track ____________ (wide).
7. The film is very_____________ (bore).I don't want to see it again.
8. ____________ (final), I saw the daylight again.
9. This subject has no _____________ (interest) to me.
10. We learnt a lot about different _____________ (cultural).
五、按要求转换句型
1. Don't forget to bring your friends. (改为同义句)
___________ ___________ bring your friends.
2. I don't think that's a good idea. (改为反意疑问句)
I don't think that's a good idea, ____________ ____________.
3. We went to the World Park the day before yesterday. (改为否定句)
We ___________ ___________ to the World Park the day before yesterday.
4. It will take us three hours to go to the park by coach. (对画线部分提问)
___________ ___________ will it take ___________ to go to the park by coach?
六、翻译句子
1. 在这个城市里有来自世界各地的人。
_____________________________________________________________________ in this city.
2．我不喜欢把我的照片放在我的主页上。
I don?t like __________________________________________________________________. 3．在一天内看到这么多名胜是令人十分惊讶的。
It?s amazing ________________________________________________________ in one day. 4．你的故事和我的一样有趣。
Your story __________________________________________________________________. 5．上周我们过得并不愉快。
___________________________________________________________________ last week.
练习四(8A Unit 4)
一、单项选择
( )1. __________ exercising, and you'll be healthier.
A. Keep
B. To keep
C. Keeping
D. Kept
( )2. —Don?t forget _________ your homework, John. —OK. I?ll do it right now.
A. doing
B. do
C. to do
D. to doing
( )3. —We all like Miss Wang.
—I agree with you. She always makes her English classes ___________.
A. interested
B. interest
C. interesting
D. interests
( )4. It?s very hot here. Why not __________ your coat?
A. put on
B. try on
C. take off
D. turn off
( )5. —Please ___________ to return my book by Friday. I'll use it on Saturday.
—No, problem. I'll finish reading it on Thursday.
A. don't forget
B. not to forget
C. not forget
D. forget not to
( )6. —Don't take pictures here, please. —_____________.
A. No way
B. Sorry, I won't
C. Here you are
D. It's a pleasure
( )7. __________ keep water running. It's a waste.
A. Why not
B. Please
C. What about
D. Don't
( )8. When you do DIY, it means that you needn't __________ someone to do it.
A. let
B. pay
C. have
D. make
( )9. —I'm going to make some paper roses. —It sounds ___________.
A. love
B. lovely
C. live
D. lively
( )10. I enjoy __________ something new. That's ___________.
A. make, fun
B. make, funny
C. making, fun
D. making, funny
( )11. —Don?t keep water running when you wash hands. —__________.
A. I hope so
B. I?m afraid not
C. Sorry, I won?t
D. It?s nothing
( )12. —It?s too hard for me to be a trailwalker.—Never ____________. Believe in yourself
A. give up
B. put up
C. hurry up
D. look up
( )13. —Jim, ___________ read books while you are walking in the street. It?s very dangerous.
—OK, thank you.
A. don?t
B. doesn?t
C. won?t
D. can?t
( )14. —If you?re free tonight, how about having dinner together? —___________.
A. It doesn?t matter
B. That?s all right
C. All right
D. Not at all
( )15. —If I work hard at my lessons from now on, can I do well in them? —Sure. ___________.
A. All rivers run into sea
B. Every day is not Sunday
C. Better late than never
D. Practice makes perfect
二、完形填空
Singing songs is fun, but is it useful (有用的) for 1 English? A foreign teacher Joe thinks singing songs is the most useful 2 for students to learn pronunciation (发音) and students can learn some new words at the 3 time. Joe has used songs to help him learn several languages 4 French, Spanish, Japanese and Chinese. So we can do the same thing.
I think singing English songs 5 not only very useful but also very 6 . Singing songs can help students 7 English better and they are happy to learn more and more.
Some vocabulary (词汇) in the songs is not every-day English, so the teacher should be 8 when using the lyrics (歌词) to teach students. The teacher should make the words 9 to remember. When students can sing the song without 10 at the lyrics, they have learnt something that they will never forget!
( )1.A. learn B. to learn C. learning D. learned
( )2.A. road B. street C. way D. idea
( )3.A. only B. same C. some D. right
( )4.A. and B. or C. like D. by
( )5. A. be B. am C. is D. are
( )6. A. interest B. interests C. interested D. interesting
( )7. A. tell B. speak C. say D. talk
( )8. A. care B. careless C. careful D. carefully
( )9. A. difficult B. hard C. easily D. easy
( )10. A. looking B. look C. to look D. looked
三、阅读理解(30分)
Dear Daughter,
As we drove off from Columbia, I wanted to write to tell you all that is on my mind.
First, I want to tell you how proud we are. Getting into Columbia is a real testament(证明) of what a great well-rounded student you are. You should be as proud of yourself as we are.
Your college years will be the most important of your life. It is in college that you will discover what learning is about. This will be the period when you go from teacher taught to master inspired, after which you learn is of no practical use in real life, the learning skills you get will be something you will value forever.
Follow your passion in college. Take courses you think you will enjoy. Don't be bothered by what others think or say, but make up your own mind. Most importantly, make true friends and be happy. Don't worry abut their hobbies, grades, looks, or even personalities.
Start planning early what you'd like to do. Where would you like to live? What would you like to learn? I think your plan to study fashion is good, and you should decide where you want to be, and get onto the right courses.
Whether it is summer planning, or coursework planning, or picking a major, or managing your time,
you should take control of your life. I will always be there for you, but the time has come for you to be in the driver's seat. This is your life, and you need to be in control. Being in control feels great. Try it, and you'll love it!
College is where you have:
the greatest amount of free time, the first chance to be independent, the most flexibility to change, the lowest risk for making mistakes
So please treasure you college years-make the best use of your free time, become an independent thinker in control of your destiny, and learn through your successes and challenges. May your years at Columbia be the happiest of your life, and may you grow into just what you dream to be.
Love
Dad & Mom (Excerpt from Kai-Fu Lee' letter to his daughter)
( )1. What does the writer think college life holds in store for his daughter?
A. Uncertainly
B. Pure enjoyment
C. Successes and challenges
D. Experimentation with life
( )2. What does the writer advise his daughter to do in college?
A. Plan everything
B. Party with friends in her free time
C. Take no notice of what others think or say
D. Treasure and make the best of her college years
( )3. Which of these pieces of advice is given in the article?
a. Think and live in dependently.
b. Learn how to learn
c. Choose friends with similar personalities.
d. Be true and sincer
e. e. Try new things
A. a b e
B. b c e
C. c d e
D. a b c
( )4. The underlined phrase “in the driver's seat” in paragraph 7 probably means “______”.
A. generous
B. independent
C. modest
D. energetic
( )5. From the text, we can know the father ____________.
A. is worried about his daughter
B. is angry with his daughter
C. is sad that his daughter is leaving home
D. is hopeful about his daughter's future
四、词汇
1. We need _____________ (工具) to plant trees.
2. What?s UFO _____________ (确切地), Mike?
3. She is ____________ (已经) a young person. She can look after herself.
4. They didn?t invite the boy ____________ (反而).
5. Did you ____________ (出席) yesterday?s meet ing?
6. He is a good _____________ (例子, 榜样) in our class.
7. I?ll try my best to help you as soon as ____________ (可能的).
8. I can ______________ (修理) the bicycle myself.
9. He often makes ______________ (拼写) mistakes.
10. ___________ (使处于……状态) the wet book in the sun for some time.
11. —Excuse me, can I sit here? —____________ (certain). 12. Both of the ____________ (brush) are very good.
13. He is very lazy. He is an __________ (active) boy.
14. Can you do the Maths exercises ____________ (correct)?
15. Did you enjoy _____________ (you) in the summer holiday, boys and girls?
16. You?d better ______________ (not make) him angry again.
17. His son is crazy about _______________ (watch) TV.
18. He had a great time _____________ (play) chess with me.
19. He can?t decide which one _______________ (buy).
20. Not only my parents but also I _______________ (be) crazy about the game.
五、翻译句子(10分)
1. 你最好买一本英语词典。
You ___________________________________________________________________ dictionary.
2. 尽量不要犯错误。
Try ____________________________________________________________________________.
3. 这道菜尝起来很可怕。
The dish ________________________________________________________________________.
4. 苏州园林不仅在中国出名，而且在全世界也很有名。
Suzhou Gardens __________________________________________________________________.
5.《江南Style》这首歌不仅在韩国而且在世界其它地方也流行。
The song Gangnam Style __________________________ in Korea _________________________.
练习五(8A Unit 5)
一、单项选择
( )1. Do you write a report __________ an animal _________ danger for the club?
A. about, on
B. on, in
C. to, from
D. in, with
( )2. I left home for England in 2002 __________ the first time.
A. for
B. with
C. in
D. at
( )3. Some wild animals are in danger __________ the loss of living areas.
A. as
B. since
C. because of
D. because
( )4. My mother works ___________ an English teacher.
A. as
B. of
C. in
D. for
( )5. We are going to make wild animal reserves _______ and build more reserves.
A. big
B. bigger
C. smaller
D. small
( )6. —Who helped you clean the room? —I __________ my own.
A. did on
B. did it on
C. helped of
D. helped it of
( )7. The number of wild animals ____________ now.
A. is getting fewer and fewer
B. is getting smaller and smaller
C. are getting fewer and fewer
D. are getting small and small
( )8. ____________ did you weigh when you were born?
A. How heavy
B. How much
C. How many
D. How
( )9. Do you have ___________ problems ___________?
A. some; cutting it down
B. any; cutting down it
C. any; cutting it down
D. any; to cut it down
( )10. Please tell Tom ____________ too much noise.
A. to make
B. not to make
C. to not make
D. not make
( )11. —Can you give me some advice about learning English?
—I think you should spent as much as you can ____________ English.
A. practice speaking
B. practicing speak
C. practice speak
D. practicing speaking
( )12. Before you learn to do __________, you must first ___________ carefully.
A. new something, see
B. something new, watch
C. anything new, look
D. some new things, read
( )13. —Is there ______________ in today?s magazine?
—Yes. Zhao Wei's film So Young released ___________ April 26.
A. anything special, on
B. something special, on
C. anything special, in
D. something special, in
( )14. It is difficult for a baby panda _____________ in the wild.
A. to survive
B. survive
C. survived
D. surviving
( )15. —Oh. Mary?s not here these days. Is she ill?
—____________. Her mother told me that she was in hospital.
A. I am afraid so
B. I hope not
C. I don?t mind
D.I don?t think so
二、完形填空
People can find bears in many places in the world. They have large bodies and thick legs but 1 tails. Bears are not real meat-eaters because they almost eat 2 . Bears are not so dangerous 3 people think them to be. Bears are very brave. Many 4 were killed by bears when they wanted to kill bears.
Bears have very good smell but very poor 5 . So they usually find something with their noses, not with their eyes. They live mainly on root (根),fish and small insects. Sometimes they kill deer and 6 animals. In fact, they like 7 animals better like rabbits. Adult bears are 8 than most other animals because they can think of something. Have you seen how 9 they beg for (讨要) sweets and food in the zoo? They are our friends 10 we should try our best to protect them.
( )1. A. short B. long C. big D. beautiful
( )2. A. something B. nothing C. everything D. some things
( )3. A. so B. as C. than D. for
( )4. A. children B. students C. pupils D. hunters
( )5. A. hearing B. eyesight C. eyes D. ears
( )6. A. another B. the other C. other D. others
( )7. A. small B. big C. fat D. large
( )8. A. more friendly B. prettier C. cleverer D. not cleverer
( )9. A. clever B. sad C. cleverly D. sadly
( )10. A. because B. but C. or D. so
三、阅读理解
Raising Pets is a popular onlin e game among teenagers. “More than 20 0f my classmates have adopted (领养) pets online,” said Wang Hui from Beijing.
If you go to some websites, you can adopt virtual (虚拟的) pets like penguins (企鹅), chickens, dogs and elephants. You can feed, wash, talk to and play with your pet.
Dai Yingshuang from Shanghai said, “It?s great fun and I have also learned how to take care of others.” She usually asks her uncle to take care of her pet while she is at school. If you don?t feed or care for the pet, it will become unhappy and unhealthy. So raising an online pet means spending a lot of time online. This makes many parents worried. They fear it will have a bad influence on the children's studies.
Wang Zhaotong from Anhui has raised a penguin since last year. She said, “My parents know about the penguin and think it's okay.”
If the students can keep the balance between studying and playing, it?s not bad for them to “raise” pets online.
( )1. Over ___________ students in Wang Hui?s class have adopted pet s online.
A. 10
B. 20
C. half
D.30
( )2. What does Dai Yingshuang think of raising pets online?
A. It?s great fun.
B. It wastes time.
C. It?s not interesting.
D. It?s boring
( )3. Which of the following is NOT right according to the passage?
A. Raising an online pet doesn?t mean spending lots of time online.
B. If you don't feed the pet, it will become unhappy and unhealthy.
C. Raising pets online makes many parents worried.
D. the students can “raise” pets online if he keep the balance between studying and playing. ( )4. What does the underlined word “balance” mean?
A. 余额
B. 自然
C. 结算
D. 平衡
( )5. What does the passage mainly talk about?
A. It?s bad to raise pets online.
B. How to raise pets online.
C. Raising pets online is popular among teenagers.
D. People raise pets online game
四、词汇
1. Children dislike too much homework and too many _____________ (考试).
2. Are there any______________ (斑马) in China?
3. I feel very _____________ (悲伤的) because my pet dog died.
4. She didn?t ______________ (接受) my invitation.
5. Can you tell me the _____________ (结果) of the writing competition?
6. My family will ______________ (搬进，搬迁) into a new flat.
7. I want to write a ______________ (报告0 on wild animals.
8. She _______________ (行动，表演) like a child.
9. We should ________________ (节约) every drop of water.
10. The boy ran very ______________ (慢的).
11. We?ll never forget your ________________ (kind) to us.
12. It is very ________________ (danger) to play on the street.
13. Many wild animals? __________________ (live) areas are becoming farmlands.
14. Do you know the _______________ (high) of the building?
15. At the _______________ (begin), he felt very nervous.
五、句型转换
1. I hope I can make a friend like him. (改为同义句)
I hope ______________ _____________ a friend like him.
2. Could you please stop the car there? (改为否定句)
Could you please ______________ _______________ the car there?
3. He didn?t say a word and left. (改为同义句)
He left _____________ _____________ a word.
4. Hunters catch tigers for their fur and bones. (改为同义句)
Hunters catch tigers ______________ ______________ their fur and bones.
5. He accepted my invitation. (对画线部分提问)
______________ _____________ he accept?
六、句子翻译
1. 你能教我怎样写有关野生动物的报告吗？
Can you teach me __________________________________________________________?
2. 第一次到北京他们就迷路了。
They went to Beijing __________________________ and _________________________.
3. 我们城市里汽车的数量越来越多了。
________________________ in our city ______________________________________.
4. 不幸的是，大多数野生动物很难在野外生存。
_________, it?s difficult ___________________________________________________.
5. 我们必须采取措施来保护野生动物。
We must ________________________________________________________________.
练习六(8A Unit 6)
一、单项选择。（10分）
( )1. He __________ much food __________ the poor family during the hard time.
A. provided; to
B. provides; with
C. provided; with
D. provided; for
( )3. I want to put the bookshelf here. Can you make ____________ for it?
A. a space
B. some spaces
C. some more rooms
D. some space
( )4. —What is he going to do? —He is _____________.
A. go birdwatching .
B. going birdwatching ,
C. going to birdwatching
D. go to birdwatch
( )5. There are _______ bears on the earth because they have _______ space on it.
A. fewer and fewer; less and less
B. more and more; fewer and fewer
C. less and, less; fewer and fewer
D. more and more; less and less
( )6. This maths question is ____________ for us to answer.
A. easy enough
B. enough easy
C. easily enough
D. enough easily
( )7. —Did you sleep well yesterday? You look very tired !
—My mother made me ___________ the piano for a whole night.
A. play
B. played
C. to play
D. plays ( )8. Mr. Wu will ___________ London this evening.
A. get
B. arrive at
C. reach
D. arrive
( )9. Today the forests are disappearing. We must _________ down too many trees.
A. prevent people to cut
B. prevent people from cutting
C. prevent people for cutting
D. prevent people at cutting
( )10. —My uncle fell off the bike and hurt his legs yesterday. —___________.
A. I am sorry to hear that
B. He is too careless
C. That?s too bad
D. He should be careful
二、完形填空
Dogs are people's friends. They will do anything their masters (主人) ask them to do and they do their duty very well.
Curly is my black dog. He is big and strong. He is strong enough to carry me on his 1 . He likes running and playing with me. He likes to 2 my father around in the fields too.
One day my father took off his coat and put it on the ground 3 a big tree and said to Curly, “ 4 my coat.”
Curly sat down on the coat. Then my father remembered he had to 5 dinner for the family. 6 he went home and forgot all about his coat and dog. Late in the evening I 7 my dog and looked for him everywhere in the yard. I called, “Curly! Curly!” But Curly did not answer.
Soon my father wanted something in his coat pocket (口袋). Suddenly he remembered 8 he had done. Quickly he went back to the big tree, What do you think he saw? Curly was 9 sitting on the coat! He was afraid someone would take it 10 .
( )1. A. hand B. back C. foot D. leg
( )2. A. follow B. put C. go D. run
( )3. A. for B. under C. to D. from
( )4. A. Look B. Listen C. Watch D. Hear
( )5. A. fix B. discover C. cook D. tell
( )6. A. Because B. So C. Though D. Or
( )7. A. hoped B. rode C. missed D. saw
( )8. A. that B. what C. if D. who
( )9. A. always B. often C. still D. usually
( )10. A. away B. in C. down D. for
三、阅读理解
A young American doctor was asleep when his door bell (门铃) began to ring. It was late at night. But what could the doctor do? He had to put on his coat. It was a man! He was standing outside with a hat in his hand. “How do you do?” said the man, “Can you come at once (立刻) to a place out of town? It?s quite far but you have a car and I can show you the way.” “Certainly.” said the doctor, “I can come at once.”
Soon the car was at the front door. The man got on the doctor?s car and they d rove off. They drove for a long time, and then the man said, “Here we are. This is my home. Now I can give you money, and you can go back to the town.”
“But I must see the patient (病人).” the doctor said, “How can I go back without seeing the
patient?” “There?s no patient,” said the man, “No one is ill, I live here. There are no taxis at this time of night, but a doctor often goes out for night calls (夜诊). So, excuse me, here?s your money. Thank you, doctor. Good night!”
( )1. When the door bell began to ring, the doctor ____________.
A. was sleeping
B. was watching TV
C. was working
D. was not at home
( )2. The man asked the doctor ____________.
A. to travel
B. to give him a present.
C. to give him a car
D. to go to a place out of town
( )3. The man wanted ______________.
A. to go boating
B. the doctor to take him out of town by car
C. a bed
D. to stay with the doctor
( )4. Why did the man give the doctor money?
A. Because he was rich.
B. Because they were friends.
C. Because the doctor took him home.
D. Because the doctor couldn't go to bed early.
( )5. The doctor knew ____________ at last.
A. there were many patients
B. there was no patient
C. the man was doctor
D. the man had a headache
四、词汇
1. I would like to become a b___________ because I like birds and nature very much.
2. I think it is important for us to p______________ birds.
3. Golden eagles have b________________ feathers and broad wings, don?t they?
4. Do swallows fly to n_______________ countries in summer?
5. His father is working for _______________ (大自然) reserve in Jiangsu.
6. Zhalong _______________ (提供) food and shelter for wild life.
7. Many people don?t understand the _______________ (重要性) of wetlands.
8. We hope this _____________ (信息) will make them take action to protect wildlife.
9. Zhalong is home of many plants and animals, i__________ different kinds of birds.
10. Providing food and s________ for endangered birds is not the only reason for us to protect wetlands.
11. The reserve has an a____________ of more than 210000 hectares.
12. My grandparents lived in _______________ (东北) China before.
13. My new classmate is ______________ (不友好) to me.
14. If we don?t take action to protect polar bear, they will be in ____________ (危险).
15. Do you want to ______________ (加入) the Birdwatching Club?
16. Can you give me the r_____________ why you were late for school this morning?
17. You can do many things in this park, for e______________, going boating.
18. Amy is ______________ (感兴趣) in reading French novels.
19. I can hear birds ______________ (唱歌) outside the classroom now.
20. There will _________ (有) a basketball match in our school this coming Saturday.五、句型转换
1. The bad milk powder (劣质奶粉) caused the deaths of over 30 babies. (同义句)
The bad milk powder ___________ ___________ the deaths of over 30 babies.
2. I told him to work hard at English. (改为一般疑问句)
___________ ___________ __________ him to work hard at English?
3. “Please open the door,” Han Mei says to Nick. (改为简单句)
Han Mei asks Nick _____________ ____________ the door.
4. To learn some knowledge about birds is important. (改为同义句)
__________ __________ __________ ___________ some knowledge about birds.
5. A lot of tourists go to Beijing to visit the Great Wall. (对画线部分提问)
_____________ ____________ a lot of tourists go to Beijing?
六、翻译句子
1. 你想要和我们一起去看鸟吗?
Would you like ___________________________________________________________________?
2. 它为野生生物提供了食物和栖息地.
It ________________________________________________________________________ wildlife.
3. 人们想要改变湿地以便为农田和建筑物让出更多的空间.
People want ___________________________________________________ for farms and buildings.
4. 吸烟有害健康.
_______________________________________________________________________ your health.
5. 他们每年数一次鸟.
They ___________________________________________________________________ once a year.
练习七(8A Unit 7)
一、单项填空
( )1. —What _____________ cold weather it is in Harbin!
—Yes. We have ____________ unusual time because we live in a hot place.
A. /; a B a; a C. /; an D. a; an
( )2. —He?s already back from the trip, ___________?
—____________. And he is now playing with his little son happily at home.
A. hasn?t he; Yes
B. isn?t he; No
C. isn?t he; Yes
D. wasn?t he; No
( )3. When you see trees moving, it means it is ____________.
A. snowy
B. windy
C. sunny
D. foggy
( )4. “They painted the walls white.” The underlined (划线的) part is __________.
A. P
B. DO
C. IO
D. OC
( )5. Last winter, the snowstorm _________ my hometown and the snow ________ everything.
A. hits; covers
B. hit; covered
C. covered; got
D. covers; hit
( )6. On the beach I was lucky __________ my favorite actor Jackie Chan.
A. to meet
B. meeting
C. meets
D. met
( )7. Too much junk food is not healthy ___________ your body, Millie.
A. for
B. to
C. with
D. at
( )8. —_____________? —It?s sunny
A. How?s the weather?
B. What?s this?
C. Can I help you?
D. Could I speak to Lisa? ( )9. You don?t need to buy apples. There are ___________ apples at home.
A. few
B. a few
C. little
D. a little
( )10. My father used that knife __________ the apple.
A. to cut
B. cutting
C. cut
D. cuts
( )11. —Where are your children?
—I had no idea. But when I left home this morning, I saw them ________ a football in the yard.
A. are kicking
B. were kicking
C. kick
D. kicking
( )12. It?s time for supper. But we want to finish ___________ crops first.
A. to harvest
B. harvesting
C. harvested
D. harvest
( )13. Jack seems __________ than you ___________ ready for the exams.
A. busy; to get
B. much busier; getting
C. busier; to get
D. more busier; getting ( )14. The number of trees in our city is getting ___________. This makes our city much greener.
A. more and more
B. larger and larger
C. less and less
D. higher and higher
( )15. —Shall we go shopping now? —Sorry. It's not the right ____. I?m too tired.
A. way
B. weather
C. place
D. moment
二、完形填空
You may think there is only sand in the desert (沙漠), 1 it is not true. In the desert, as we know, there is only a little rain, but it is not enough for most plants. Still we can see some plants 2 in the desert.
There is 3 in some places in the desert. We 4 these places oasis (绿洲). In the oasis, there are villages and towns. People grow 5 kinds of crops in the fields there.
People 6 live outside the oasis. They have camels, sheep and other animals. These animals live on. the desert plants and do not need 7 water.
The 8 are useful to the desert people in many ways. They eat the meat and drink the milk of animals. They use the camels for carrying water, food, tents and something else.
The people of the desert have to keep moving from place to place. They must always look 9 grass or desert plants for animals. When there is no more food for their animals, they move to 10 place. The desert people are friendly. No man in the desert would ever refuse (拒绝) to help the people in trouble.
( )1. A. and B. but C. or D. so
( )2. A. live B. to live C. lives D. lived
( )3. A. stones B. plants C. wood D. water
( )4. A. say B. tell C. call D. find
( )5. A. every B. all C. a D. one
( )6. A. also B. too C. otherwise D. still
( )7. A. a little B. few C. much D. any
( )8. A. water B. plants C. crops D. animals
( )9. A. at B. for C. up D. after
( )10. A. other B. the other C. the others D. another
三、阅读理解
In the summer after Maggie Doyne graduated (毕业) from high school. She decided to spend a year traveling around the world before she started college. However, the journey changed her life and she also changed the world.
In 2006, Doyne took a trip through the Himalaya Mountains (喜马拉雅山). Because Doyne grew up comfortably, she was shocked (震惊) to see so many homeless kids living in the streets. So she used her savings of $ 5,000 to buy a piece of land in the village of Surkhet and build the kids a home, the Kopila Valley Children's Home.
The Kopila Valley Children's Home opened in 2008. Doyne cares for 26 kids at the home at present. The children at the home learn basic skills such as cooking and other housework, And she has helped more than 700 0ther homeless kids find families.
Do Something did something for Doyne. On June 1st, 2009, the organization (组织) gave Doyne $ 100,000 as the 2009 Do Something Award. In a tearful(含泪的) talk, Doyne gave some money to a young girl who lived in the home but recently passed away from cancer (癌症). She also made a plan to build a school with the money she just won.
( )1. Doyne was shocked because she found that ____________.
A. many children liked living in the streets
B. many children lost their parents and had to live in other families
C. many children were in poor families
D. many children lost their parents and had no place to live
( )2. What did Doyne spend her savings doing?
A. Helping the kids who left their homes go back home.
B. Building a home for the homeless kids.
C. Sending homeless kids to school.
D. Building a school for the poor kids.
( )3. The underlined phrase “passed away” means _____________.
A. left
B. reached
C. died
D. ran
( )4. Why did the passage say Maggie changed the world?
A. She traveled around the world.
B. She helped children who lost their homes a lot.
C. She saw many children living in the streets.
D. She helped 700 homeless kids find families. ( )5. Which of the following can tell the main idea of the passage best?
A. A girl who left high school in 2006.
B. A girl who travelled around the world.
C. A girl who helped homeless kids a lot.
D. A girl who helped other girls in 2009.
三、词汇
1. He ____________ (扔) his ticket somewhere yesterday and now he can?t find it.
2. My grandfather always ___________ (咳嗽) at midnight. He should go to see the doctor.
3. The woman kept ____________ (打电话) her son but no one answered.
4. The _____________ (突发) illness took his life last year.
5. She set the books ______________ (在…之上) the desk and went out.
6. It?s good to be back on _______________ (陆地) after the long flight.
7. It?s a good day! There?s not a ________________ (云) in the sky.
8. —What will the _____________ be like tomorrow? —It?ll be sunny.
9. —I looked for you _______________, but I didn?t find you.
—Sorry. I was next door because Mrs Li asked me for help.
10. —I hate _______________ days. I feel uncomfortable in a raincoat.
—Oh, but don't you think it is romantic (浪漫) to walk in such weather?
四、动词填空
1. Look! How hard it ______________ (snow) outside!
2. You must try your best to stop him _____________ (make) the same mistake again.
3._______________ (keep) the door closed and it will be warm here.
4. She decided to offer as much money as she can _______________ (help) the poor.
5. The first question of the four was really difficult, but the rest ______________ (be) quite easy.
6. Mr Wu told us that the sun _________________ (rise) from the east.
7. The teacher advised us _________________ (not leave) rubbish on the grass.
8. They __________________ (not win) this game and they all felt sad.
9. Please write down what I say, or you _____________ (forget) the important points.
10. Would you please ________________ (stay) here for a while? Mum is coming.
六、完成句子
1. 明天温度将会降至0℃以下。
____________________________________________________________________ tomorrow.
2. 冬天是打雪仗的最好季节。
Winter ______________________________________________________________________.
3. 什么都不穿，你不仅看起来酷，感觉也很酷！
You will ____________________________________________________________________.
4. 今天最高温度可能会到28度左右。
_______________________________________________________________________ today.
5. 我不得不说得再大声点因为风正刮得厉害。
I _________________________________ because __________________________________.
练习八(8A Unit 8)
一、单项填空
( )1. ________ it rained heavily for a whole day today, the temperature dropped a lot in the afternoon.
A. So
B. Though
C. When
D. Since
( )2. — Have you found your new bike?
—No. I have looked for it __________ , but I haven?t found it.
A. somewhere
B. everywhere
C. nowhere
D. where
( )3. —Many people __________ in Tangshan earthquake.
—That?s terrible. I hope everything __________ every day.
A. lose their life; go well
B. lose their lives; go well
C. lost their lives; goes well
D. lost their lives; go well
( )4. —Why are children so ________? —They learned the ________ news about their football team.
A. excited; exciting
B. exciting; exciting
C. exiting; excited
D. excited; excited ( )5. —What bad weather! —Yes. The radio says it will be even ________ later on.
A. bad
B. worst
C. worse
D. badly
( )6. There was a rainstorm yesterday. The flood ___________ the old bridge over the small river.
A. washed away
B. went away
C. kept away
D. put away ( )7. I must stay ____________ because I have to look after my parents.
A. live
B. living
C. alive
D. to living
( )8. Mum told me to ____________ when I was in trouble.
A. get down
B. slow down
C. come down
D. calm down
( )9. Can you _______ the big stone? It is in the middle of the road and it may cause a traffic accident.
A. bring
B. remove
C. take
D. catch
( )10. The floor is wet. Who will with me tonight?
A. mop up it
B. mop up them
C. mop it up
D. mop them up
( )11. The earthquake in Japan took away ____________ lives.
A. thousands of
B. ten thousands
C. thousand of
D. ten thousands of
( )12. My mother was watching TV ____________ I came into-her bedroom.
A. before
B. after
C. when
D. if
( )13. There is ____________ sheep eating on the hill.
A. a little
B. a few
C. little
D. few
( )14. He fell off his bike and ____________ his arm.
A. hurted
B. was hurt
C. hurt
D. hurts
( )15. His car ___________ the bad weather on his way home.
A. broke down because
B. broke down because of
C. broke off because
D. broke off because of
( )16. The floor is so clean. Who ___________ this morning?
A. mopped up it
B. mopped it up
C. mop up it
D. mops it up
( )17. My father likes reading newspapers ____________ he is having breakfast.
A. if
B. before
C. because
D. while
( )18. Look! The building is ____________. Call 119, please.
A. catching fire
B. caught fire
C. on fire
D. fire
( )19. Grandpa Wang wanted to find the kind taxi driver_______.
A. as quick as possible
B. as soon as can
C. as soon as possibly
D. as soon as possible ( )20. —Jim fell from his bike and got badly hurt. —_____________.
A. Sorry to hear that.
B. Really?
C. That's a problem.
D. I don't care.
二、完形填空
Once a mother mouse, with her babies, was out in the forest. They were playing and having a nice time l a hungry cat came near. It was 2 a big tree and then went through the tall 3 until it could almost hear them 4 . After the mother mouse and her babies knew what was going on, the cat jumped from its hiding place and ran after them.
The mother mouse and her babies 5 ran away at once. They hurried to their home, which was 6 a large, dirty stone But the baby mice were too frightened 7 away quickly.
Closer and closer the cat came. In no time the cat would 8 them. What was to be done? The mother mouse 9 running, turned round and faced t le cat, shouting, "Woof! Woof!" just like an angry dog. The cat was 10 and afraid. It ran away quickly. The mother mouse turned to her babies and said, "Now you see how important it is to learn another language!"
( )1. A. until B. as C. while D. when
( )2. A. behind B. before C. beside D. in
( )3. A. grass B. rice C. leaves D. cabbages
( )4. A. play B. talk C. cry D. shout
( )5. A. both B. all C. every D. none
( )6. A. above B. over C. under D. on
( )7. A. not to run B. to not run C. not run D. to run
( )8. A. beat B. eat C. catch D. follow
( )9. A. finished B. stopped C. tired D. kept
( )10. A. exciting B. surprised C. surprising D. excited
三、阅读理解
The coming of the New Year brings not only a new beginning but also an end to the busy holiday season. A New Year?s vacation can be a great way for people who want to celebrate the New Year to do so in style. A New Year?s vacation can also help a person relax. If a New Year?s vac ation is on your wish list for either of these reasons, or one of your own, here are some tips for planning a vacation and having a great time at your destination (目的地).
Solidify (固定) the group. A New Year?s vacation can be a great time for families to play, for friends to reunite (团聚). Who is coming on your New Year's vacation? Decide this and quite a few new questions will come up like times, places, activities and prices. But as long as you know who's going on this New Year holiday trip, all the other questions can be answered.
Solidify the details (细节). Now start your vacation planning: Find out where you would like to go, how much you would like to spend, what you would like to see and do. Do you want to be in a major city? Do you want to be in a cabin (小木屋) in the forest? For example, if you're traveling with children and grown-ups, you may want to visit the Disneyland during New Year?s week. Not only does Disney have the traditional attractions and fireworks (焰火) for children, but some clubs like Pleasure Island have special New Year's Eve events for adults.
Now you know how to plan a vacation for New Year. New Year?s might be just the right time for you and your family or friends to get away from it all. On the other hand, it might be fun just to go somewhere new and exciting when the New Year comes in.
( )1. According to the passage, what is the best place to go if you travel with children and adults?
A. A major city.
B. A cabin in the forest.
C. The Disneyland.
D. Somewhere new and exciting.
( )2. What is the most important question when you plan New Year?s vacation?
A. Where would you like to go?
B. What would you like to see and do?
C. How much would you like to spend?
D. Who is coming on your New Year?s vacatio n?
( )3. What is NOT TRUE about a New Year?s vacation?
A. A New Year?s vacation is impossible without a plan.
B. A New Year?s vacation is a great way to celebrate the New Year.
C. A New Year?s vacation can be a great time for families to play.
D. A New Year?s vacation can also help a person relax.
( )4. Why is the Disneyland attractive to both children and grown-ups?
A. Because it is somewhere new and exciting.
B. Because it has the traditional attractions for children.
C. Because it has special N ew Year?s Eve events for adults.
D. Because it has entertainments for both children and adults.
( )5. Which is the best title for this passage?
A. A New Year?s Vacation
B. How to Plan a New Year?s Vacation
C. Where to go on New Year?s Vacation
D. Wh om Having a New Year?s Vacation with
四、单词拼写
1. My father works in a _______________ (铁路) station. He works very hard.
2._______________ (摇动) hands with others can show your kindness.
3. They kept ______________ (沉默) when they heard the bad news.
4. “Don?t be ______ (紧张不安的). I?m sure you can do it,” my mum said to me when the game started.
5. I usually go to Shanghai by _____________ (长途汽车). It costs me 62 yuan every time.
6. Sissy?s _______________ (外孙女) loves her pancake best.
7. I got a bad ______________ (头疼) when I reached Zhang Jiajie and we had to got back home.
8. —This shop is only opened on ___________. —So you mean it is closed on Saturdays and Sundays?
9. —Judy seemed badly hurt in this car accident.
—The doctor said there was nothing serious. Her heart was still __________ strongly when 120 came.
10. —Don?t be so angry. The children are shaking in ______________ ,
—They should learn a lesson today.
五、动词填空
1. —Where is Jack?
—I don?t know. He ______________ (write) something on his notebook when I passed the classroom.
2. There is only one student _______________ (mop) the floor. Where are the others?
3. When I met Miss Li in the street yesterday, I stopped ______________ (talk) to her.
4. The flood made a lot of people ________________ (lose) their lives.
5. Who _______________ (wait) for you in front of your house at seven yesterday morning?
6. Every kind of disaster ________________ (cause) a lot of problems every year.
7. The plane ________ (not arrive) here on time because the report says there will be a heavy snow soon.
8. Did you hear somebody ________________ (scream) when you walked past the house?
9. Look! The police _________________ (clear) the snow from the streets.
10. Do you know how __________________ (work) out this maths problem?
六、完成句子
1. 我们应该遵守交通规则来保护自己。
We should _______________________________________________________________________.
2. 地震停止后人们四散奔逃。
People _________________________________ after _____________________________________
3. 我正试着找到出路时，听到了一些吵闹。
I ___________________________________ when _______________________________________.
4. 我们正在向外跑时，成片的玻璃和砖头正在掉落。
___________________________________ while __________________________________.
5. 当我被困住时是否有其他人在我附近？
______________________________ near me when ________________________________?
练习九(8A 期末练习)
一、单项填空
( )1. Everything comes with __________ price; there is no free lunch in the world.
A. the
B. a
C. an
D. /
( )2. Would you like to sleep with the windows ___________ or ____________?
A. open; close
B. opened; closes
C. open; closed
D. opening; closing
( )3. —Here are three books on history. Which one would you like to borrow?
—_______. You see, I?m interested in geography these days.
A. All
B. Each
C. Both
D. None
( )4. Tian?anmen Square is one of ___________ squares in the world.
A. large
B. larger
C. largest
D. the largest
( )5. —Somebody knocked at the door just now.
—Sorry, I didn't hear it. I ___________ to the music at that time.
A. listened
B. am listening
C. was listening
D. listen
( )6. China is getting stronger and stronger __________ its economy (经济) grows.
A. with
B. if
C. as
D. while
( )7. —Why does he look so tired these days?
—He has to work hard ___________ the coming test.
A. to
B. instead of
C. because
D. because of
( )8. —You should be careful when ____________.
—Yes, I will. I'd like to know when ____________ to have a rest.
A. driving; stopping
B. driving; to stop
C. to drive; stopping
D. to drive; to stop
( )9. —Could you find ____________ ways to work out this problem, Jim? —Yes, I _____________.
A. other; could
B. the other; can
C. other; can
D. the other; could
( )10. My father wants to go swimming this weekend, _________ my mother hopes to go on a picnic.
A. when
B. that
C. so
D. while
( )11. —Is there ____________ in today's newspaper?
—Yes. Premier Li went to see ____________ “stay-home children” on December 25th.
A. anything special; hundred of
B. something special; hundred of
C. special anything; hundreds of
D. anything special; hundreds of
( )12. Taiwan is ___________ the east of China and __________ the east of Fujian.
A. in; in
B. in; to
C. to; on D to; to
( )13. The rain was so __________ that the climbers had to walk ___________.
A. heavy; slow
B. heavily; slowly
C. heavy; slowly
D. heavily; slow
( )14. —Mum, could you buy me a dress like this?
—Sure, we can buy ___________ one than this, but ___________ this.
A. a better; better than
B. a worse; as good as
C. a cheaper; as good as
D. a more important; not as good as
( )15. —____________ is the weather tomorrow? —It?s ____________.
A. How; sunny
B. What; sunny
C. What; sun D How; sun
( )16. Tell Tom ___________ look out of the window, ___________?
A. doesn't; will you
B. not to; will you
C. don't; does he
D. not to; will he
( )17. The earthquake _________ when I _________ some cleaning in the kitchen.
A. starts; was doing B started; was doing C. was starting; was doing D. starts; were doing ( )18. It is ___________ for me to finish this report in two hours. I need two more persons to help me.
A. possible
B. able
C. impossible
D. unable
( )19. They often had a great time ____________ ball games before. But now they have no time ___________ after-school activities.
A. playing; doing
B. to play; doing
C. to play; to do
D. playing; to do
( )20. —Isn?t that book so boring? —___. You can know a lot about wild animals.
A. Yes, you are right
B. I'm afraid so
C. Not at all
D. Of course
二、完形填空
Each of us makes mistakes from time to time. In fact, we can l a lot from our mistakes.
Donnie was a 2 student and never answered questions in class. He was 3 to make mistakes. He never finished his homework 4 he didn?t want to make any mistakes. Nothing changed 5 Marry Anne, a teacher, came to our class.
One morning, Marry Anne asked Donnie to answer some questions. After a while Donnie was in tears (眼泪) because he made a mistake. Suddenly Marry Anne got a box full of erasers from the desk.
“Look, Donnie,” she said, standing 6 him. “I?ve got something to show you.” She 7 the erasers, one at a time, and put them on the desk.
“See these erasers, Donnie?” she continued. “Do you k now 8 the erasers become smaller and smaller? That?s because we make mistakes. But we erase (清除) the mistakes and try again. That?s what you must learn.”
“Here,” she said, “I?ll 9 one eraser on your desk, so you will remember that 10 may ma ke mistakes.” Donnie looked at Marry Anne and smiled.
Donnie changed a lot from then on. He knew that everyone had the permission (允许) to make mistakes as long as you learned something from them and tried again.
( )1. A. take B. make C. learn D. bring
( )2. A. good B. shy C. clever D. small
( )3. A. glad B. excited C. surprised D. afraid
( )4. A. because B. so C. if D. but
( )5. A. after B. while C. before D. when
( )6. A. on B. with C. beside D. to
( )7. A. put out B. took away C. took out D. took off
( )8. A. when B. how C. what D. why
( )9. A. forget B. carry C. leave D. give
( )10. A. nobody B. somebody C. no one D. everybody
三、阅读理解
The seven-day National Holiday was fun for many Chinese, but not for the animals in Xiangjiang Zoo in Guangzhou. Some of the animals were nervous, because too many people crowded (拥挤) into the zoo nearly every day during the holiday, according to (根据) the workers at the zoo.
Visitors took a lot of photos, hit the cages, shouted at the animals and made noise the whole day. Others gave the animals some food that they should not eat.
Many animals were scared (害怕) an d didn?t come out. Koalas were in the grass. A panda sat in a corner. A monkey was angry at a child and wanted to get out of the cage and nearly broke its arm. A little giraffe was ill after eating the food given by a young man.
“We hope the visitors, while enjoying the time in the zoo, think about the animals and their health,”
a worker from the zoo said.
“Hitting cages will scare baby animals. It can make them change color, and even die.” Experts (专家) said. “Monkeys and bears can hurt their stomac hs (胃) after eating too much food given by visitors. Some animals, such as zebras will die if they eat the plastic (塑料) bags. “
The same problem happened at Beijing Zoo, yet most visitors stopped when workers in the zoo asked them to.
( )1. The workers at the zoo hope _______.
A. there won't be so many people coming to the zoo
B. the visitors don't make animals angry
C. the visitors also think about animals' health
D. the experts give some advice（建议）to the visitors.
( )2. Which of the following is true according to the passage?
A. A monkey was ill after eating the food given by a young girl.
B. If a giraffe eats plastic bags, it will die.
C. A panda slept all the time because it wouldn't like to come out.
D. The same thing happened at the Beijing Zoo, but it was not as bad as that in Xiangjiang Zoo. ( )3. From the passage, we know the writer_______.
A. was worried about the animals in the zoo
B. hated all the visitors very much
C. wanted to take the animals out of the zoo
D. asked the experts to stop the visitors
( )4. The writer tells us not to_______ if we go to visit the zoo.
A. hit the cages of the animals
B. give food to the animals
C. shout at the animals loudly
D. do all of the above
四、词汇
1. People walked in all _____________ (方向) after they watched the football game.
2. It is _______________ (吹) really hard outside. I lost my hair clip just now.
3. He looked at the little cat so ______________ (伤心). Some bad men broke its leg.
4. Lily ______________ (描述) the beauty of Guilin to me and made me really want to go there.
5. In the _______________ (开始), I didn't understand his words at all.
6. Cinderella was a ________________ (勤奋) girl but her sisters didn?t like her.
7. It keeps raining these days. _______________ (幸好), it will be sunny next week.
8. —Does Daniel have a good memory? He said he never took a map.
—Yes. He remembers all the roads and never gets ______________ in this big city.
9. —Mum, I'm so _____________ . Could you give me a glass of juice?
—Sorry, baby. There's only water.
10. —Could you speak in a _____________ voice? I can't hear you clearly. —I ask you where my bag is.
五、动词填空
1. Thanks for listening to my problem and ______________ (keep) the secret for me.
2. Mm! Something _______________ (smell) really good!
3. Let?s go shopping if it ________________ (not be) so cold tomorrow.
4. Laura ________________ (hurt) her left leg when she rode her new bicycle.
5. —Did you see my son pass by five minutes ago?
—Sorry, I didn?t notic e that. I ________________ (read) a newspaper just now. .
6. Jim chose _________________ (not drive) his new car to the office.
7. —What?s the noise?—Oh, the students ____________________ (plan) their spring trip excitedly.
8. We?d better ________________ (take) action right now. The animals need us.
9. We can?t wait _________________ (decorate) the room with beautiful flowers.
10. From now on, I _________________ (not leave) you alone any more.
六、翻译句子
1. 这儿的天气一年到头都下雪。
It is _____________________________________________________________________ here.
2. 我们计划给需要的孩子提供书籍。
We ____________________________________________________________________ books.
3. 如果我们不采取行动，数千只鸟会死亡。
If we ______________________, __________________ birds __________________________.
4. 当我正在做烙饼的时候电话响了。
I _____________________________________ when __________________________________
5. 这里曾有许多著名的景点。
There were once_____________________________________________________________ here.
练习十(8B Unit 1)
一、选择填空
( )1. There have been no buses ___________ half an hour.
A. after
B. for
C. in
D. since
( )2. I can?t get into my room now because I ____________ my key.
A. lose
B. will lose
C. have lost
D. am losing
( )3. —Have you written anything on Chinese traditional food so far?
—____________, but I have a plan for it.
A. Ever since
B. Later on
C. Not yet
D. From now on
( )4. Timmy goes to school ___________ every day. It?s 5 minutes? walk from his home to school.
A. in a bus
B. by MTR
C. on foot
D. by tram
( )5. Our teacher is very kind ________ us and it is very kind of him ________ us.
A. to; helping
B. to; to help
C. of; to help
D. of; helping
( )6. ____________ Lei Feng is no longer living, his spirit lives on today.
A. If
B. When
C. Although
D. Because
( )7. Our Maths teacher _____ in our school for 20 years and he _____ here when he was 23 years old.
A. has taught；has come
B. taught；comes
C. taught；came
D. has taught；came ( )8. He promised to pick me up at the school gate. However, he ___________ yet.
A. hasn?t arrived
B. doesn?t arrive
C. isn?t arriving
D. didn?t arrive
( )9. —Is the film interesting? —I thought it would be. But ____________. It?s very boring.
A. in all
B. in fact
C. in addition
D. in future
( )10. Mr White came to our school in 2008，and since then he _______ us English.
A. teaches
B. taught
C. has taught
D. will teach
( )11. —How long may I ____________ your bike?
—For a week. But you mustn?t ____________ it to others.
A. borrow；lend
B. keep；lend
C. 1end；borrow
D. keep；borrow
( )12. His grandparents live _______ in a small house, but they don?t feel _______.
A. lonely；alone
B. alone；alone
C. lonely；lonely
D. alone；lonely
( )13. British Prince William (威廉王子) and Kate _______ for nearly two months.
A. married
B. have married
C. have been married
D. have got married
( )14. —I think winter is a beautiful season, ________ when it snows. —Me, too.
A. especially
B. specially
C. probably
D. properly
( )15. There ____________ a big river in front of the house, but now It has turned into farmlands.
A. used to have
B. used to be
C. is used to having
D. is used to be
二、完形填空
When I was young, I liked to play jokes on people I knew, especially on my parents and friends. One day my mother was 1 and I was playing with my younger brother Tony.
Suddenly I ran to my mother and said, “Tony fell from the open window!” She was very 2 and ran out of the kitchen. Then I said, “Don?t worry, I?m just 3 .” And my mother shouted at me, “If you do it 4 , I?ll hit you.”
One day I went swimming with my 5 in the sea. I wanted to play a joke on them. In the beginning, I went swimming 6 , and I called out, “Help!” All my friends came to help me, only to 7 that I was joking. But the next time I wasn?t joking. I was so 8 that I swam in deep water. I tried my best to call my friends for help ,but this time nobody came to help me.
9 , They found I was telling the truth. They came and saved my life. They took me to the hospital. This is the best 10 in my life. From then on, I haven?t joked on anyone.
( )1. A. writing B. sleeping C. cooking D. running
( )2. A. angry B. worried C. sorry D. excited
( )3. A. smiling B. saying C. playing D. joking
( )4. A. now B. then C. again D. once
( )5. A. friends B. classmates C. brothers D. parents
( )6. A. fast B. slowly C. well D. alone
( )7. A. find B. understand C. say D. think
( )8. A. careful B. careless C. fast D. slow ( )9. A. In the end B. At first C. Since then D. At that time
( )10. A. time B. sport C. lesson D. day
三、阅读理解
When you are reading something in English, you may often meet with a new word. What?s the best way to know it?
You may look it up in the English-Chinese dictionary. It will tell you a lot about the word: the pronunciation, the Chinese meaning and how to use the word. But how can you know where the word is thousands of English words? How to find it in the dictionary both quickly and correctly?
First, all the English words are arranged (安排) in the letter order. In the dictionary you can first see the w ords beginning with letter A, then B, C, D…. That means, if there are two words “desert” and “pull”, “desert” will be certainly before “pull”. Then if there are two words both beginning with the same letter, you may look at the second letter. Then the thir d, the fourth… For example, “pardon” is before “plough”, “judge” before “just”, etc.
Do you understand how to look up in the dictionary?
The dictionary will be your good friend. I hope you?ll use it as often as possible in your English study.
( )1. This passage is about ___________.
A. new words in writing
B. different dictionaries
C. the best way of reading
D. using an English-Chinese dictionary
( )2. In the dictionary you may not find _____________.
A. how to pronounce the word
B. the spelling of the word
C. who used the word first
D. how to use the word
( )3. In an English-Chinese dictionary, the last word ____________.
A. begins with Z
B. begins with A
C. is a short one
D. is not often used
( )4. Which group of words is in the right order in an English-Chinese dictionary?
A. perhaps, produce, plenty
B. straight, subject, surprise
C. century, center, business
D. foreign, entrance, headache
( )5. In the passage the writer tries to tell us that _____________.
A. we have to use a dictionary when we read something in English
B. an English-Chinese dictionary can tell us everything about a word
C. an English-Chinese dictionary can help us a lot in our English study
D. all English-Chinese dictionary are the same
四、词汇
1. It?s _____________ (浪费) to throw away glass, paper and metal.
2. It?s reported that Shen Jian, director of the Provincial Education Department of Jiangsu, was ____________ (采访) by 11 primary school students about some present issues.
3. Have you ever _____________ (写) a letter to your parents?
4. I love children, _____________ (尤其，特别) when they smile.
5. On holidays, tourists like to go to Dinghu Mountain because of the _____________ (新鲜的) air．
6. Let me ______________ (描述) how it happened.
7. You will ______________ (意识到) the mistake you made today in future.
8. We can?t _______________ (投掷) stones at the window.
9. The old woman is crying _____________ (悲伤). What happened to her?
10. How many _______________ (街区) are there in your hometown?
五、动词填空
1. The bowl is empty. Eddie _________________ (eat) all the food.
2. Look! The boy __________________ (throw) some bones at the dog.
3. I __________________ (learn) a lot of English words over the years.
4. I didn?t answer your phone last night because I _________________ (write) an article the whole night.
5. After two weeks' training, the dolphin got used to _______________ (communicate) with the visitors.
6. —_________ the train ________ (arrive) yet? —Yes, it arrived ten minutes ago.
7. —It seems that you know a lot about the story.
—Well. I ________________ (read) it many times.
8. Can you tell me how ________________ (improve) my English? I'm not good at it.
9. —Where is your MP4, Kitty?
—Oh, I lent it to Tony yesterday, but he _________________ (not give) it back yet.
10. This is the first time I _____________ (see) such a beautiful sea since I was born.
六、句子翻译
1. 谢谢你把字典借给我。
___________________________________________________________________ the dictionary. 2. 这幢教学大楼已经投入使用5年了。
The teaching building ___________________________________________________________.
3. 深圳已经变成了一个现代化城市。
Shenzhen _____________________________________________________________________.
4. 在日本当你去拜访朋友时，进门之前要脱掉鞋子。
When you _________________________ you should __________________________________.
5. 这部电影有助于帮你了解中国的过去和现在。
This film ______________________________________________________________________.
2019八年级快乐寒假作业答案第一部分：语文答案 p1 一、1.èzèmòfúzāngyōu 2.噤砾箧裁谬疟3.C 4.B 5.B P3 三、趣味语文：瞒天过海围魏救赵偷梁换柱以逸待劳趁火打劫声东击西 10(1)百十(2)万(3)千三(4)八百五十 P4 3.C 4.D 5.B 二、渴慕震悚霹雳狼籍滞笨唏嘘烦躁吊唁呵斥 P6 三1 说出来让大家开心开心2 在放弃之前放弃努力 四背诵积累：客亲前后生死祸福 P7 一基础知识 cang zi xiao zhou xun zhang 榭镂帷凿壑伦 B D P8 5.轻捷与潇洒悲忿而苍凉是的，因为前者的态度达观向上，值得学习。
6.《中国石拱桥》的语言精炼、准确;本文语言典雅、舒和。P9 三趣味语文：B C D A 四背诵积累：陋室黄鹤楼岳阳楼承天寺 P10 ni xi lan bo yin yan 咎绮藩褶衍翩改错;两栖(qi) 殷(yan)红 A C D P11 6.仿生手生动形象地写出仿生手的神奇，吸引读者 7.不可以，这个词表示时间范围，若删去，则句子意思变为任何时候都会做脚，与现实不相符合，这个词体现了说明文语言的准确性。 8.列数字科学准确的说明了我国肢体残疾的人数之多，突出了仿生手的作用之大 P12 10.二三四五 11.(1)落晖(2)落日(3)夕日(4)日暮(5)落日(6)夕阳(7)斜阳 p13 1.yǎn xiè tiáo yè zhuàndú 2(1)阡陌:田间小路(2)扶: 沿;顺着(3)规:计划(4)津:渡口(5)
属:类(6)蕃:多 (7)馨:香气，这里指品格高尚(8)鸿儒：博学的人(9)宜:应当(10)因:顺着、就着 p15 (1)田家(2)渝州(3)江南(4)东城 P16 1.sùtuān gě qiúxī shù 2.(1)奔: 飞奔的吧(2)属: 动词，连接(3)歇: 消散(4)颓: 坠落(5)但: 只(6)仅: 几乎(7)沃: 用水林洗(7)强: 尽力 p18 11.(1)元旦(2)春节(3)元宵(4)儿童 12(1)到(3) 雁(4)和(5) 燕
轴对称练习题（含答案） 一．选择题 1．下列图形中，是轴对称图形的是（） A．B． C．D． 2．如图，在△ABC中，D，E是BC边上两点，且满足AB＝BE，AC＝CD，若∠B＝α，∠C＝β，则∠DAE的度数为（） A．B． C．D． 3．如图，等腰△ABC的周长为21，底边BC＝5，AB的垂直平分线DE交AB于点D，交AC于点E，则△BEC的周长为（） A．13 B．16 C．8 D．10 4．点A（4，﹣2）关于x轴的对称点的坐标为（） A．（ 4，2 ）B．（﹣4，2）C．（﹣4，﹣2）D．（﹣2，4）5．已知一个等腰三角形一内角的度数为80°，则这个等腰三角形顶角的度数为（）A．100°B．80°C．50°或80°D．20°或80°6．若等腰△ABC中有一个内角为40°，则这个等腰三角形的一个底角的度数为（）A．40°B．100°C．40°或100°D．40°或70°
7．在△ABC中，∠A＝30°，∠B＝70°，直线将△ABC分成两个三角形，如果其中一个三角形是等腰三角形，这样的直线有（）条． A．5 B．7 C．9 D．10 8．如图，Rt△ACB中，∠ACB＝90°，∠A＝60°，CD、CE分别是△ABC的高和中线，下列说法错误的是（） A．AD＝AB B．S △CEB ＝S △ACE C．AC、BC的垂直平分线都经过E D．图中只有一个等腰三角形 9．如图，a∥b，△ABC的顶点A在直线a上，AC＝BC，∠1＝50°，∠2＝20°，则∠C的度数为（） A．70°B．30°C．40°D．55° 10．对于问题：如图1，已知∠AOB，只用直尺和圆规判断∠AOB是否为直角？小意同学的方法如图2：在OA、OB上分别取C、D，以点C为圆心，CD长为半径画弧，交OB的反向延长线于点E，若测量得OE＝OD，则∠AOB＝90°．则小意同学判断的依据是（） A．等角对等边 B．线段中垂线上的点到线段两段距离相等
5.1理论形成的社会历史条件 1、和平与发展成为时代主题是理论形成的时代背景 2、社会主义建设的经验教训是理论形成的历史根据 3、改革开放和现代化建设的实践是理论形成的现实依据 5.2如何把握理论的主要容 1、解放思想、实事的思想路线 2、社会主义初级阶段理论 3、党的基本路线 4、社会主义根本任务的理论 5、三步走战略 6、改革开放理论 7、社会主义市场经济理论 8、“两手抓，两手都要硬”： 物质文明和精神文明建设都要抓是我国社会主义现代化建设的基本方针 9、一国两制 10、中国问题的关键在于党 5.3如何认识理论的历史地位 1、马克思列宁主义、思想继承和发展 2、中国特色社会主义理论体系的开篇之作 3、改革开放和社会主义现代化建设的科学指南 8.1如何理解我国社会主要矛盾发生的变化 对社会主义矛盾的科学判断，是制定党的路线方针的基本依据。党对我国社会主要矛盾认识根据社会发展变化而不断调整和深化。 1、1956年社会主义改造基本完成后，党的八大指“出我国的主要矛盾已经是人民对于经济文化迅速发展的需求同当前经济不能满足人民需要的状况之间的矛盾” 2、1981年十一届六中全会通过《历史决议》对我国社会主
要矛盾作了科学表述“我国需要解决的矛盾，已经是人民日益增长的物质文化需要同落后的社会之间产生的矛盾” 3、党的十九大明确指出，我国社会主要矛盾已经转化为人民日益增长的美好生活需要同不平衡不充分的发展之间的矛盾。主要依据有下面三个方面： ①经改革开放四十年的发展，我国社会生产水平总体上显著提高，很多方面进入世界前列。 ②人民的生活水平显著提高，对美好生活的向往更加强烈。 ③影响满足人们美好生活需要的因素很多，但主要是发展不平衡不充分的问题。 8.2如何认识中国特色社会主义进入新时代 1、新时代的涵： ○1新时代是承前启后、继往开来，在新的历史条件下继续夺取中国特色注意伟大胜利的时代。 ○2新时代是决胜全面建成小康社会、进而全面建设社会主义文化强国的时代。 ○3新时代是全国各族人民团结奋斗、不断创造美好生活、逐步实现全体人民共同富裕的时代。 ○4新时代是全体中华儿女戮力同心、奋力实现中华民族伟大复兴中国梦的时代。 ○5新时代是我国日益走近世界舞台中央、不断为人类作出更大贡献的时代。 2、新时代的意义 ○1从中华民族伟大复兴的历史进程来看，中国特色社会主义进入新时代，意味着中华民族迎来了从站起来、富起来到强起来的伟大飞跃，迎来了实现中华民族伟大复兴的光明前景。○2从科学社会主义发展进程来看，中国特色社会主义进入新时代，在社会上高高举起了中国特色社会主义伟大旗帜。○3从人类文明进程来看，中国特色社会主义进入新时代，拓展了发展中国家走向现代化的途径，为解决人类问题贡献了中国智慧和中国方案。
八年级2020寒假作业答案 一、选择题：DBBCC、DBBDD。 二、填空题 1、振动，介质，0，音色，响度。 2、光在同种均匀介质中是沿直线传播的。 3、先升华后凝华，液化，凝华。 4、凸，倒立，弱。 5、异种，吸引。 6、同一高度，缩小，照相机。 7、蒸发，熔化，吸。 8、电流表的正、负接线柱接反了。电流表的量程选小了，烧坏。 9、0.22，串联电路中电流处处相等。 三、作图(学生上黑板画) 四、实验题： 2、(1)并联电路中干路电流等于各支路电流之和。 (2)减少实验误差，提升实验的准确度，增加干电池的个数。 (3)用三个电流表同时测量A、B、C三处的电流。 3、(1)凹，靠近。 (2)晶状体太凸，成像在视网膜前。 五、计算题：
解：S=Vt=340m/s×01s÷2=17m。 答：要听到自己的回声，人距障碍物至少17m。 六、综合题 1、MN，AO，3，6，右。 2、A， 3、-2 ℃ ，24 ℃ ，0.38。 4、(1)温度计的玻璃泡碰到了杯底。 (2)读数时两眼没有与温度计的液柱上表面相平。 1. 1鞠;颤。2憧憬3孙犁《芦花荡》《荷花淀》 4.D 5.qiáo cuì lǜe zhàn 6.寄托苏醒7.这个角已变成灰烬，那一角仅仅血和泥。8.长白山黄河江南南海解放区9.对解放区的热爱和向往(比喻：像恋人的柔发，不像牲口一样活。) 10.江南的水田，你当年新生的 禾草是那么细，那么软……现在只有蓬蒿。11.抒发了对灾难祖国的 热爱，表达了对解放区的向往。12.飞鱼飞到广州动物园13.(1)小 明晚上练习影响了邻居的休息(2)陈伯伯在夸奖自己练习刻苦2. 1.nǜe jìn cuān qiú 2.①因寒冷而哆嗦。②倾斜，歪斜。 3. 法雨果巴黎圣母院悲惨世界 4.(1)“他”其他人(2)“图书馆”别的 地方 5.因为在刹那间我突然想起记忆中那块青色的墓碑，想起了那 个把宽容给了“我”，把爱给了世界的女孩。 6.“我”发现那幢公 寓竟然只有四层7.描述中表现梅里特的惊恐和疑惑即可8.妻子这 个人物性格不明显，其他人物个性鲜明。(言之成理即可) 9.对犯错 误的人多一点理解和宽容就是多给人一个机会(犯了错误努力改正同样
《数轴》同步练习及答案 一 夯实基础 1、 画出数轴并表示出下列有理数：.0,3 2,29,5.2,2,2,5.1--- 2、 下列数轴的画法正确的是（ ） 3、 在数轴上表示-4的点位于原点的 边，与原点的距离是 个单位长度。 4、 比较大小，在横线上填入“＞”、“＜”或“=”。 1 0；0 -1；-1 -2； -5 -3；-2.5 2.5. 二、拓展提高 1、 数轴上与原点距离是5的点有 个，表示的数是 。 2、 已知x 是整数，并且-3＜x ＜4，那么在数轴上表示x 的所有可能的数值有 。 3、 在数轴上，点A 、B 分别表示-5和2，则线段AB 的长度是 。 4、 从数轴上表示-1的点出发，向左移动两个单位长度到点B ，则点B 表示的数是 ， 再向右移动两个单位长度到达点C,则点C 表示的数是 。 5、 数轴上的点A 表示-3，将点A 先向右移动7个单位长度，再向左移动5个单位长度，那 么终点到原点的距离是 个单位长度。 6、 在数轴上P 点表示2，现在将P 点向右移动两个单位长度后再向左移动5个单位长度， 这时P 点必须向 移动 个单位到达表示-3的点。 三、体验中考 1、（太原）在数轴上表示-2的点离开原点的距离等于（ ） A 、2 B 、-2 C 、±2 D 、4 2、（广州）有理数a 、b 在数轴上的位置如图所示，则a 、b 的大小关系是（ ） A 、a ＜b B 、a C 、a=b D (原题是实数a ，b ，现改为有理数a ，b) 0 1 D
参考答案一、夯实基础（本节练习需要画数轴帮助分析） 1、画数轴时，数轴的三要素要包括完整。图略。 2、C，考察数轴的三要素。 3、左，4 4、＞＞＞＜＜ 二、拓展提高 1、两个，±5 2、-2，-1，0，1，2，3 3、7 4、-3，-1 5、1 6、左，2 三、体验中考 1、A 2、B 《数轴》同步练习 一、基础巩固题： 1．在数轴上表示的两个数中，的数总比的数大。 2．在数轴上，表示－5的数在原点的侧，它到原点的距离是个单位长度。3．在数轴上，表示+2的点在原点的侧，距原点个单位；表示－7的点在原点的侧，距原点个单位；两点之间的距离为个单位长度。 4．在数轴上，把表示3的点沿着数轴向负方向移动5个单位，则与此位置相对应的数是。 5．与原点距离为2.5个单位长度的点有个，它们表示的有理数是。 6．到原点的距离不大于3的整数有个，它们是：。 7．下列说法正确的是（） A．没有最大的正数，却有最大的负数 B．数轴上离原点越远，表示数越大 C．0大于一切非负数 D．在原点左边离原点越远，数就越小 8．下列结论正确的有（）个： ①规定了原点，正方向和单位长度的直线叫数轴；②最小的整数是0；③正数，负数和零统称有理数；④数轴上的点都表示有理数. A．0 B．1 C．2 D．3 9．在数轴上，A点和B点所表示的数分别为－2和1，若使A点表示的数是B点表示的数的3倍，应把A点（） A．向左移动5个单位 B．向右移动5个单位 C．向右移动4个单位 D．向左移动1个单位或向右移动5个单位 10．在数轴上画出下列各点，它们分别表示：+3，0，－31 4 ，1 1 2，－3，－1.25，并把它 们用“＜”连接起来。
生物化学各章练习题及答案
生化练习题 一、填空题： 1、加入高浓度的中性盐，当达到一定的盐饱和度时，可使蛋白质的溶解度__________并__________,这种现象称为 __________。 2、核酸的基本结构单位是_____________。 3、____RNA 分子指导蛋白质合成，_____RNA 分子用作蛋白质合成中活化氨基酸的载体。 4、根据维生素的溶解性质，可将维生素分为两类，即 ____________和____________。 5、___________是碳水化合物在植物体内运输的主要方式。 6、糖酵解在细胞的_____________中进行 7、糖类除了作为能源之外，它还与生物大分子间识别有关，也是合成__________，___________，_____________等的碳骨架的共体。 8、脂肪是动物和许多植物主要的能源贮存形式，是由甘油与3分子_____________酯化而成的。 9、基因有两条链，作为模板指导转录的那条链称 _____________链。 10、以RNA 为模板合成DNA 称_____________。 二、名词解释 1、蛋白质的一级结构： 2、糖的有氧氧化： 3、必需脂肪酸： 4、半保留复制： 三、问答题 1、蛋白质有哪些重要功能？
1、蛋白质的一级结构：指蛋白质多肽链中氨基酸的排列顺序，以及二硫键的位置。 2、糖的有氧氧化：糖的有氧氧化指葡萄糖或糖原在有氧条件下氧化成水和二氧化碳的过程。是糖氧化的主要方式。 3、必需脂肪酸：为人体生长所必需但有不能自身合成，必须从事物中摄取的脂肪酸。在脂肪中有三种脂肪酸是人体所必需的，即亚油酸，亚麻酸，花生四烯酸。 4、半保留复制：双链DNA 的复制方式，其中亲代链分离，每一子代DNA 分子由一条亲代链和一条新合成的链组成。 三、问答题 2、DNA 分子二级结构有哪些特点？ 答：按Watson-Crick 模型，DNA 的结构特点有：两条反相平行的多核苷酸链围绕同一中心轴互绕；碱基位于结构的内侧，而亲水的糖磷酸主链位于螺旋的外侧，通过磷酸二酯键相连，形成核酸的骨架；碱基平面与轴垂直，糖环平面则与轴平行。两条链皆为右手螺旋；双螺旋的直径为2nm，碱基堆积距离为0.34nm，两核酸之间的夹角是36°，每对螺旋由10 对碱基组成；碱基按A=T，G=C 配对互补，彼此以氢键相连系。维持DNA 结构稳定的力量主要是碱基堆积力；双螺旋结构表面有两条螺形凹沟，一大一小。 3、怎样证明酶是蛋白质？ 答：（1）酶能被酸、碱及蛋白酶水解，水解的最终产物都是氨基酸，证明酶是由氨基酸组成的。 （2）酶具有蛋白质所具有的颜色反应，如双缩脲反应、茚三酮反应、米伦反应、乙醛酸反应。 （3）一切能使蛋白质变性的因素，如热、酸碱、紫外线等，同样可以使酶变性失活。
语文八年级寒假作业答案2021 （2021最新版） 作者：______ 编写日期：2021年__月__日 寒假第一天 1.①畅②溢③驰④茂 2. 错别字
蒂、辩、奇、原 改正 谛、辨、其、缘 3.《水浒传》关于人物的一切都由人物本身的行动去说明，作者绝不下一按语。 4.本题选B、E。 5.庭院中的月光宛如一泓积水那样清澈透明，水中藻、荇纵横交错，原来是绿竹和翠柏的影子。 6.赏月虽自有其乐，但是作者的内心深处却并不得意。“闲人”既指作者“闲”官的现实，又表现他对安闲心境的追求。暗示了作者孤独、悲凉而又随缘自适、自我宽慰的特殊心境。 7.本题选A。 8.本题选A。
9.写了“我”对大哥的误解，为后文揭示人物性格作了巧妙的铺垫，很好地推动了故事情节的发展。 10.“坐”一词形象而生动地把大哥要把家中的旧椅子破坏掉而又不露声色、不引起父母注意和怀疑的心理，很好地突出了大哥的心细和孝顺、对父母的疼爱。 11.一是使文章语言风趣生动;一是在常理中，损坏公物要赔偿，与大哥每每主动添置家中日常用品相照应。“我”第一次损坏了家里的“公物”则说明“我”在大哥的启发下，把对父母的孝顺和疼爱转化为切实的行动。既形象地突出了大哥对“我”影响和“我”的转变，也为文章营造了温馨甜美的氛围。 12.不能。划线句刻画了父母的节俭，既勾画了两代人的不同特点，更为大哥不动声色地“破坏公物”做了相应的必须的交代和补充。 13.那把椅子真的快垮了，早晚会摔着人，更何况“爸妈”都七十多了，不能有什么闪失。以此为题可以形象地突出大哥孝顺而心细的特点，鲜明生动地揭示文章中心。 寒假第二天
《八年级新寒假》参考答案 ·语文· １１．（１）鞠；颤。（２）憧憬２．孙犁《芦花荡》《荷花淀》３．略（要求句式整齐）４．Ｄ５．ｑｉáｏｃｕìｌǜｅｚｈàｎ６．寄托苏醒７．这一角已变成灰烬，那一角只是血和泥。８．长白山黄河江南南海解放区９．对解放区的热爱和向往（比喻：像恋人的柔发，不像牲口一样活。）１０．江南的水田，你当年新生的禾草是那么细，那么软……现在只有蓬蒿。１１．抒发了对灾难祖国的热爱，表达了对解放区的向往。１２．飞鱼飞到广州动物园１３．（１）小明晚上练习影响了邻居的休息（２）陈伯伯在夸奖自己练习刻苦２１．ｎǜｅｊìｎｃｕāｎｑｉú２．①因寒冷而哆嗦。②倾斜，歪斜。３．法雨果巴黎圣母院悲惨世界４．（１）“他”其他人（２）“图书馆”别的地方５．因为在刹那间我突然想起记忆中那块青色的墓碑，想起了那个把宽容给了“我”，把爱给了世界的女孩。６．“我”发现那幢公寓竟然只有四层７．描述中表现梅里特的惊恐和疑惑即可８．妻子这一人物性格不明显，其他人物个性鲜明。（言之成理即可）９．对犯错误的人多一点理解和宽容就是多给人一个机会（犯了错误努力改正同样也能成才）１０．（１）你怎么在课堂上睡觉？（２）如：我被这优美的音乐陶醉了、我已经被《川江号子》倾倒了。（合理即可） ３１．Ｄ２．①熟→塾璧→壁聊→潦②咽→唁３．①鲁迅《朝花夕拾》散文②佩弦《荷塘月色》《匆匆》《背影》等③杨绛钱钟书《围城》４．Ｃ５．周树人文学家思想家革命家豫才风筝从百草园到三味书屋６．出生年月、籍贯、家境和异地谋生的原因７．①没有能力支付学费②不愿做幕友或商人８．认为新医学对日本明治维新有很多帮助９．偶尔在电影看见一个中国人做侦探而被斩，觉得医好几个人也无用，提倡新文艺。１０．我的母亲和几个别的人很希望我有经济上的帮助１１．Ｂ１２．为上下求索而艰难奋进的思想感情和爱国之情１３．言之有理即可 ４１．Ｃ２．①你为了自己卫生，却忘了公共卫生。②对不起，我不小心把纸掉在了地上。３．无所事事：什么事也不干。４．①关爱子女；②善于引导、教育子女。５．不能听天由命，要用自己的双手开掘出幸运之泉。６．自己不努力，整天无所事事，却还要埋怨母亲，埋怨命运，让母亲承受这么大的精神压力。７．母亲对我说的话感到吃惊，感到迷惑不解。８．如：命运把握在每个人自己的手中。（只要所写句子扣住中心即可）９．（１）Ｂ（２）Ｃ符合要求即可。１０．略 ５１．缔卸镶晦２．略３．略４．如“独在异乡为异客，每逢佳节倍思亲。”“举头望明月，低头思故乡。”等 ５．顺叙。６．伞；用伞堵住破窗。７．把姑娘的伞弄破了。大汉帮助她用伞把破窗堵住了。８．因为大汉“欺骗”盲人夫妇是善意的，他怕盲人夫妇知道实情后内心不安；而乘客们也理解大汉的用意，故而善意地笑了。９．人与人之间友爱互助的关系。１０．别的书销量很好，都卖完了。（不要求语言一致，有讽刺效果即可。）１１．如局域网、互联网、信息网等。 ６１．略２．障—嶂新—心置—制豪—毫３．（１）“先进”后加“水平”（２）去掉“能否”４．略５．①客观地说明事物、阐明事理。②时间顺序、空间顺序、逻辑顺序。③简明、准确、周密。６、流程漫长，流域广大，气势雄伟７、自然环境优越，有利于人类生存８、Ｃ９、不能，因为它表示所
第三章思考题 刚体一般是由n （n 是一个很大得数目）个质点组成。为什么刚体的独立变量却不是3n 而是6或者更少 何谓物体的重心他和重心是不是 总是重合在一起的 试讨论图形的几何中心，质心和重心重合在一起的条件。 简化中心改变时，主矢和主矩是不是也随着改变如果要改变，会不会影响刚体的运动 已知一匀质棒，当它绕过其一端并垂直于棒的轴转动时，转动惯量为23 1 ml ，m 为棒的质量，l 为棒长。 问此棒绕通过离棒端为l 41且与上述轴线平行的另一轴线转动时，转动惯量是不是等于2 24131?? ? ??+l m ml 为什么 如果两条平行线中没有一条是通过质心的，那么平行轴定理式（3.5.12）能否应用如不能，可否加以修改后再用 在平面平行运动中，基点既然可以任意选择，你觉得选择那些特殊点作为基点比较好好处在哪里又在（3.7.1）及（）两式中，哪些量与基点有关哪些量与基点无关 转动瞬心在无穷远处，意味着什么 刚体做平面平行运动时，能否对转动瞬心应用动量矩定理写出它的动力学方程为什么 当圆柱体以匀加速度自斜面滚下时，为什么用机械能守恒定律不能求出圆柱体和斜面之间的反作用力此时摩擦阻力所做的功为什么不列入是不是我们必须假定没有摩擦力没有摩擦力，圆柱体能不能滚 圆柱体沿斜面无滑动滚下时，它的线加速度与圆柱体的转动惯量有关，这是为什么但圆柱体沿斜面既滚且滑向下运动时，它的线加速度则与转动惯量无关这又是为什么 刚体做怎样的运动时，刚体内任一点的线速度才可以写为r ω?这时r 是不是等于该质点到转动轴的垂直距离为什么 刚体绕固定点转动时，r ω ?dt d 为什么叫转动加速度而不叫切向加速度又()r ωω??为什么叫向轴加速度而不叫向心加速度 在欧勒动力学方程中，既然坐标轴是固定在刚体上，随着刚体一起转动，为什么我们还可以用这种坐标系来研究刚体的运动 欧勒动力学方程中的第二项()21I I -y x ωω等是怎样产生的它的物理意义又是什么 第三章思考题解答 答：确定一质点在空间中得位置需要3个独立变量，只要确定了不共线三点的位置刚体的位置也就确定了，故须九个独立变量，但刚体不变形，此三点中人二点的连线长度不变，即有三个约束方程，所以
（人教版）八年级上册语文寒假作业答案参考 一、 1.注音 dí jìng jié dū wén jiān kùi xiè 襄陵 2、选词 B E F D C A 3、填空 (1)时间、地点、人物、事件的起因、经过、结果 (2)标题、导语、主体、结构、背景 4、C 5、jìn gāo zè yào yāo 飒飒梭蹿蹿 6、修辞手法 (1)反复 (2)反问 (3)借代 (4)反语 7、(1)理由：上网可收集各方面的资料，扩大知识面，协助学习，人教版八年级上册语文寒假作业答案。 (2)观点：上网弊大于利 理由：网络游戏容易让人沉迷，从而荒废学业。 8、略 9、略 10、课堂声声撒酒疯 二 1、注音
lìjiào jū fǘ 匍袭屏穆 2、a c a a 3、a 4、(1)夸张 (2)比喻 (3)比喻 5、huǎng niáo fǎ xī qiè 骇劫缀 6、C 7、略 8 、稳步增长上升 9、“客到” “盘中” 10、少壮不努力，老大徒伤悲。 (2)用水比喻时光，匆匆一去复返。以警告世人要珍惜时间。 三、 Cuì lóng miù yì wāng mù niáo huǎng 2、B、C、A、D、 3、4—2----3-----1 4、zèn xù jié màng 拙诅孀耸 5、B、B、C、B、 6、姆、琐、衰 7、人物地位虽然低下，但却有傲气和骨气。 8、就那么一个老妪，跻身她们中间，并不起劲儿地招徕。偶尔发一声叫卖，嗓音是沙哑的。 9、为了获得自信自己仍然立在好人边上的自慰，老妪退钱表现了“人心的尊贵”，相比之下，“我”深感自己的行为比较庸俗。 10、略 11、略
2010—2011学年度第一学期散水头中学八年级数学 第十五章轴对称单元检测 一、扫描与聚集 1．我国的文字非常讲究对称美，下列四个图案，有别于其余三个图案是（ ） 2．下列图形不一定是轴对称图形的是（ ） A ．等腰三角形 B ．正方形 C ．圆 D ．三角形 3．观察图中的汽车商标，其中市轴对称图形的个数为（ ） A ．2 B ．3 C ．4 D ．5 4．等腰三角形两边的长分别为2cm 和5cm ，则这个三角形的周长是（ ） A ．9 cm B ．12cm C ．9 cm 或12cm D ．在9 cm 或12cm 之间 5．在等边三角形ABC 中，CD 是ACB ∠的平分线，过D 作DE//BC 交于E ，若ABC ?
的边长为a ，则ADE ?的周长为（）A．2a B．3 a 4 C．1.5a D．a 6．下列说法中，不正确的是（） A．等腰三角形底边上的中线就是它的顶角平分线 B．等腰三角形底边上的高就是底边的垂直平分线的一部分 C．一条线段可看作以它的垂直平分线对称轴的轴对称图形 D．两个三角形能够重合，他们一定是轴对称的 7．如图，在等腰三角形ABC中，AB=AC，BE、CD分别是底角的平分线，DE//BC，图中等腰三角形的个数是（） A．3 B．4 C．5 D．6 8．如图，AB=AC， 1 A=36,1=2,ADE=EDB 2 ∠∠∠∠∠ ，则图中等腰三角形有（） A．3 B．4 C．5 D．6
9．等腰三角形上的高与底边的夹角等于（ ） A ．顶角 B ．顶角的两倍 C ．顶角的一半 D ．底角的一半 10．在等腰ABC ?中，AB=AC ，O 为不同于A 的一点，且OB=OC 则直线AO 与底边BC 的关系为（ ） A ．平行 B ．垂直且平分底边 C ．斜交 D ．垂直BC 但不平分BC 二、 思考与表达 11．如图是从镜中看到的一串数字，这串数字应为_________。 12．如图，在ABC ?中，DE 是AC 的垂直平分线，AE=3 cm .ABD ?的周长为13cm ，则ABC ?的周长为______cm 。 13．等腰三角形底边长为4cm ，则腰长x 的取值范围是_____。 14．正五角星共有_______条对称轴。 15．如图，在ACD ?中，AD=BD=BC ，若C=25∠，则ADB ?= ______。 16．等腰三角形一个顶角和一个底角之和是110，则顶角是______。 17．如图，ABC ?中，OB 平分ABC ∠，OC 平分ACB ∠经过点O 且平行BC ，BE=3 cm ，CF =2cm ，则EF= ________ cm 。
八年级上册数学寒假作业答案 【第1~3页】 一、计算 1、解：因为三角形ACF全等于三角形DBE。所以AD-BC=DC-BC。即AB=CD。 因为AB+CD+BC=AD所以AB=(11-7)÷2=2 2、解：设∠BEF和∠FEM为X,则∠CEN和∠NEM为2X，得 X+X+2X+2X=180所以∠FEM+∠NEM=∠FEN;6X=180所以∠FEN=30+60=90X=30 二、填空 1~82相反数正负7负当a三、略四、AB五、解答(自己画) 【第4~6页】 一、CDAD二、连第2个三、略四、B五、略 六、选A画上去七、解：2X-3分之2X-2=-X+31又3分之2X+X=53分之8X=5X=8分之15 【第7~9页】 一、略二、DAD三、四、略 五、1、解：20-Y=-1.5Y-2-2.5Y=-22Y=5分之44 2、解：7X+6X-6=2013X=26X=2 3、解：8X-9X-6=6-X=12X=-12 六、三角形：100×4=400(块)花行：50÷0.5=100(块)
七、1连22连43连54连15连3(左边为1到5右边也是1到5别混啦) 【第10~12页】 一、1、502、解：因为∠BAC+∠B+∠C=180所以∠BAC=180-30-40=110因为∠BAC=∠B’A’C’=110所以∠CAB’=∠BAC+∠B’A’C’-1803、B4、C二、略 三、都是以顺时针的方向旋转90°四、-2ab带入得-1 五、因为三角形ABC全等于三角形DEF所以DF=AC=35kg 六、略 七、πx h=2πx +3πx hπx -3πx =2πx h-3=2πx h=5πx 【第13~15页】 一、略二、BACD三、画尺规做图画出角平分线然后利用比例尺标出 四、1、25b-(b-5)=2925b-b+5=2924b=24b=1 2、9y-3-12=10y-14-y=1y=-1 3、=-X+2X的平方+5+4X的平方-3-6X=-7X+6X +2 4、=3a的平方-ab+7+4a的平方-2ab-7=7a的平方-3ab 五、解：因为三角形ABC全等于三角形ADE所以∠D=∠B=25 因为∠EAD+∠D+∠E=180所以∠EAD=180-25-105=50 【第16~18页】 一、1、C因为有无数条对称轴2、C因为C的折线与a折线是平行的
英语八年级寒假作业答案人教版练习一 一、ABCDD DBCDD BBCDD 二、AABCB AABBB 三、DDAAA CCDDD 四、 was doing is was doing to leave natural easily importance 五、grew into to make for the first time are in danger encourages us to help will catch the school bus at the beginning are good at take away 六、you will what is How long How can by plane 七、She started to eat bamboo shoots and leaves Less and less space Too much traffic how to make a home page weighed 35 kilograms 八、natural wetlands provides ideal comfortably 九、China 13 basketball film fruit 十.作文略。 练习二
二. 单项选择。(20分) 1-5 BDAAD 6-10 CDDAB 11-15 BBCAD 16-20 ABACC 二. 交际英语。(5分) 21-25 BCDEA 三. 完形填空。(10分) 26-30 C B A CA 31-35 C B D A D 四. 阅读理解。(每空2分，共30分)、 (A )36-40 BBBCC (B) 41-45 CABDB (C). 46-50 BCCDD五. 词汇。 A) 51. government 52. disasters 53. importance 54. encourages 55. height 56. screamed 57. directions 58. arrival 59. covers 60. unnecessary B) 61. killing 62. foggy 63. trapped 64. alive 65. carelessly 66.tourists 67. endangered 68. playing 69. was mopping 70. to build C) 71. crashed into 72. in fear 73. provide for 74. at birth 75. calmed down 六. 任务型阅读。(5分) 76.No, it isn't. 77. Yes, they are. 78. Because they can hear things and feel things. 79. No, it can't. 80. Its legs.
一、选择题 1．下列命题中：①两个全等三角形合在一起是一个轴对称图形；②等腰三角形的对称轴是底边上的中线；③等边三角形一边上的高就是这边的垂直平分线；④一条线段可以看着是以它的垂直平分线为对称轴的轴对称图形. 正确的说法有（ ）个 A ．1个 B ．2个 C ．3个 D ．4个 2．下列图形中：①平行四边形；②有一个角是30°的直角三角形；③长方形；④等腰三角形. 其中是轴对称图形有（ ）个 A ．1个 B ．2个 C ．3个 D ．4个 3．已知∠AOB ＝30°，点P 在∠AOB 的内部，P 1与P 关于OA 对称，P 2与P 关于OB 对称，则△P 1OP 2是 （ ） A ．含30°角的直角三角形； B ．顶角是30的等腰三角形； C ．等边三角形 D ．等腰直角三角形. 4．如图：等边三角形ABC 中，BD ＝CE ，AD 与BE 相交于点P ，则 ∠APE 的度数是 （ ） A ．45° B ．55° C ．60° D ．75° 5. 等腰梯形两底长为4cm 和10cm ，面积为21cm 2，则 这个梯形较小 的底角是（ ）度. A ．45° B ．30° C ．60° D ．90° 6．已知点P 在线段AB 的中垂线上，点Q 在线段AB 的中垂线外，则 （ ） A ．PA+PB ＞QA+QB B ．PA+PB ＜QA+QB D ．PA+PB ＝QA+QB D ．不能确定 7．已知△ABC 与△A 1B 1C 1关于直线MN 对称，且BC 与B 1C 1交与直线MN 上一点O ， 则 （ ） A ．点O 是BC 的中点 B ．点O 是B 1C 1的中点 C ．线段OA 与OA 1关于直线MN 对称 D ．以上都不对 8．如图：已知∠AOP=∠BOP=15°，PC ∥OA ，PD ⊥OA ，若PC=4，则PD=（ ） A ．4 B ．3 C ．2 D ．1 9．∠AOB 的平分线上一点P 到OA 的距离 为5，Q 是OB 上任一点，则 （ ） A ．PQ ＞5 B ．PQ≥5 C ．PQ ＜5 D ．PQ≤5 10．等腰三角形的周长为15cm ，其中一边长为3cm ．则该等腰三角形的底长为 （ ） A ．3cm 或5cm B ．3cm 或7cm C ．3cm D ．5cm 二．填空题 11．线段轴是对称图形，它有_______条对称轴． 12．等腰△ABC 中，若∠A=30°，则∠B=________． 13．在Rt △ABC 中，∠C=90°，AD 平分∠BAC 交BC 于D ，若CD=4，则点D 到AB 的距 离是__________． 14．等腰△ABC 中，AB=AC=10，∠A=30°，则腰AB 上的高等于___________． 15．如图：等腰梯形ABCD 中，AD ∥BC ，AB=6，AD=5，BC=8，且AB ∥DE ，则△DEC A P A E C B D
第一章误差与数据处理 1-1 下列说法中，哪些是正确的？ （1）做平行测定的目的是减小系统误差对测定结果的影响。 （2）随机误差影响精密度，对准确度无影响。 （3）测定结果精密度高，准确度不一定高。 （4）只要多做几次平行测定，就可避免随机误差对测定结果的影响。 1-2 下列情况，将造成哪类误差？如何改进？ （1）天平两臂不等长（2）测定天然水硬度时，所用蒸馏水中含Ca2+。 1-3填空 （1）若只作两次平行测定，则精密度应用表示。 （2）对照试验的目的是，空白试验的目的是。 （3）F检验的目的是。 （4）为检验测定结果与标准值间是否存在显著性差异，应用检验。 （5）对一样品做六次平行测定，已知d1~d5分别为0、+0.0003、－0.0002、－0.0001、+0.0002，则d6为。 1-4用氧化还原滴定法测定纯品FeSO4·7H2O中铁的质量分数，4次平行测定结果分别为20.10%，20.03%，20.04%，20.05%。计算测定结果的平均值、绝对误差、相对误差、平均偏差、相对平均偏差、标准偏差及变异系数。 1-5有一铜矿样品，w(Cu) 经过两次平行测定，分别为24.87%和24.93%，而实际w(Cu)为25.05%，计算分析结果的相对误差和相对相差。 1-6某试样5次测定结果为：12.42%，12.34%，12.38%，12.33%，12.47%。用Q值检验法和4d检验法分别判断数据12.47%是否应舍弃？（P = 0.95） 1-7某分析人员测定试样中Cl的质量分数，结果如下：21.64%，21.62%，21.66%，21.58%。已知标准值为21.42%，问置信度为0.95时，分析结果中是否存在系统误差？ 1-8 在不同温度下测定某试样的结果如下： 10℃：:96.5%，95.8%，97.1%，96.0% 37℃：94.2%，93.0%，95.0%，93.0%，94.5% 试比较两组数据是否有显著性差异？（P = 0.95）温度对测定是否有影响？
级寒假作业答案人教版 导语】寒假来临，把学习的压力留在教室里，尽情地休息;把紧张的情绪留在校园里，尽情的放松;寒假记录了快意，记录了笑意，祝你快乐度寒假，快乐最给力!下面是为您整理的《2020物理八年级寒假作业答案人教版》，仅供大家参考。 2020物理八年级寒假作业答案人教版篇一 【一】 1、B、2.45 2、28.225.1 3、2.5 4、人、河岸 5、运动 6、地面、地面、椅背、车 7、A 8、c 9、C10、C11、A12、D、13、B14、B 【二】 1、长、短 2、每秒行驶5米 3、6.2522.5 4、2505/3 5、路程、时间、V=s/t 6、0.4便于测量时间 7、100min 8、路程、时间、速度 9、6.25m/s 交接棒所用时间少10、8022.220.4511、86大于 12、(1)v=s/t=300m/5h=60km/h(2)v=s/t=300m/2.5h=120km/h (3)t=t1—t2=5h—2.5h=2.5h 【三】 1、振动、空气、山间铃响马帮来 2、不能、能 3、快 4、不相同、空气、耳朵 5、小于、波的、泡沫塑料屑在飞舞、在振动 6、C 7、C 8、C 9、音调、音色、音调、响度10、频率、快慢、频率、高11、次数HZ20---20000HZ
12、强弱、振幅、振幅、大、远近13、分贝、90dB14、慢、低、大、大 15、音色、响度16、信息、能量17、C18、B19、C20、A 【四】 1、A 2、C 3、A 4、A 5、A 6、C 7、空气柱、空气柱、频率、空气 8、(1)能量(2)音色、 9、(1)无法正常交流(2)无法听音色(3)感受不到声音带来的信息 10、(1)声音可以在固体中传播(2)更好的接收声音(3)听诊器 【五】 1、36.4、=、体温计有缩口，水银不会回流 2、A：没有水平放置B：正C：接触了容器底D：没有接触液体 3、甲、38.538.5 4、(1)10(2)是、有固定的凝固点 5、放、低 6、B 7、B 8、D 9、C10、C 11、dacbe12、(1)温度保持不变、(2)温度继续上升、(3)图略 探究性学习 1、真空中不能传声 2、B 3、D 4、505*10000 5、D 6、折射、虚、火车、地面。 7、A8、11.2689、吸、熔化、力、熔点10、惯性、力。 11、同意，水滴就像一个凸透镜，把阳光会聚，使树林燃烧，
物理2020八年级寒假作业答案人教版l 1 1、B、2.45 2、28.2 25.1 3、2.5 4、人、河岸 5、运动 6、地面、地面、椅背、车 7、A 8、c 9、C 10、C 11、A 12、D、13、B 14、B l 2 1、长、短 2、每秒行驶5米 3、6.25 22.5 4、250 5/3 5、路程、时间、V=s/t 6、0.4 便于测量时间 7、100min 8、路程、时间、速度 9、 6.25m/s 交接棒所用时间少 10、80 22.22 0.45 11、 8 6 大于 12、(1)v=s/t=300m/5h = 60 km/h (2) v=s/t=300m/2.5h=120 km/h (3)t =t1—t2 =5h—2.5h =2.5h l 3 1、振动、空气、山间铃响马帮来 2、不能、能 3、快 4、不相同、空气、耳朵 5、小于、波的、泡沫塑料屑在飞舞、在振动 6、C 7、C 8、C 9、音调、音色、音调、响度 10、频率、快慢、频率、高 11、次 数 HZ 20---20000HZ 12、强弱、振幅、振幅、大、远近 13、分贝、90dB 14、慢、低、大、大 15、音色、响度 16、信息、能量 17、C 18、B 19、C 20、A l 4
1、A 2、C 3、A 4、A 5、A 6、C 7、空气柱、空气柱、频率、空气 8、(1)能量 (2)音色、 9、(1)无法正常交流 (2)无法听音色 (3)感受不到声音带来的信息 10、(1)声音能够在固体中传播 (2)更好的接收声音 (3)听诊器 l 5 1、36.4、=、体温计有缩口，水银不会回流 2、A：没有水平放置 B：正 C：接触了容器底 D：没有接触液体 3、甲、38.5 38.5 4、(1)10 (2)是、有固定的凝固点 5、放、低 6、B 7、B 8、D 9、C 10、C 11、d a c b e 12、(1)温度保持不变、(2) 温度继续上升、(3) 图略 l 探究性学习 1、真空中不能传声 2、B 3、D 4、50 5*10000 5、D 6、折射、虚、火车、地面 7、A 8、11.268 9、吸、熔化、力、熔点 10、惯性、力 11、同意，水滴就像一个凸透镜，把阳光会聚，使树林燃烧，从而引起火灾。 12、因为衣服只能反射它原本的颜色。 13、测得十分钟的路程，用V=S/T的公式求出速度 l 6
第十五章轴 一、判断 1. 只承受弯矩，而不承受扭矩的轴称为心轴。( T ) 2. 轴的计算弯矩最大处为危险剖面，应按此剖面进行强度计算。 ( F ) 3. 实心轴与空心轴强度相同时，空心轴的重量比实心轴轻，困此机械设计中广泛使用了空心轴。( F ) 4. 按许用切（扭剪）应力计算,因为只考虑了转矩未考虑弯矩，所以这种方法只适用于传动轴不适用于转轴。( F ) 5. 按许用切（扭剪）应力计算方法计算轴的直径不适用于心轴。 ( T ) 6. 轴的设计的主要问题为强度，刚度和振动稳定性。此外还应考虑轴的结构设计问题。( T ) 7. 若阶梯轴过渡圆角的半径为r，轴上与之相配零件的倒角为C?45?，轴肩高为h，则要求：h>C>r。( T ) 8. 有一由碳钢制造的轴刚度不能满足要求时，可以改用合金钢或进行表面强化以提高刚度，而不必改变轴的尺寸和形状。( F ) 二、选择 1.转轴承受____C____；心轴承受______B_____；传动轴承受______A_______。 A.扭矩 B.弯矩 C.扭矩和弯矩
2. 如图，B为轴上零件宽度，L为相配的轴段长度，一般情况下，为了轴向固定应使___________C__________ A.B
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