七年级下英语作业纸No.1
班级：________ 学号：________ 姓名：________ 成绩：________ 【作业内容】Unit 2-1，7下Neighbours ( Comic strip & Welcome to the unit)
Ⅰ.词汇运用。
1. Zhou’s next door _______________ （邻居）Qi Hui is unhappy, too.
2. They have some ___________(技能).
3. I wish I could swim __________（像）a fish.
4. What are they? They are ____________（服务员）.
5. Miss Wu is always ____________（乐于助人）to others.
6. There are shops in the ___________________（街区）.
7. Do you know the _________(访问者) from different countries?
II. 单项选择。
( )1 ----_____________? ----He is very kind and friendly.
A. What does he look like
B. What is he like
C. What is he
D. What does he like
( ) 2. Can you swim in the river?
A. I’m afraid of that
B. I’m afraid to swim
C. I’m afraid not
D. I’m not afraid
( ) 3. _________ girls like beautiful clothes.
A. Most
B. Most of
C. The most
D. Mostly
( ) 4. The teacher teaches _________ History.
A. our
B. us
C. your
D. his
( ) 5. Where _________ does Millie want to visit?
A. else
B. others
C. other
D. another
( ) 6. Millie lives on ________ floor in a tall building.
A. five
B. fifth
C. the fifth
D. the fiveth.
III.用所给词的适当形式填空：
1. They _____________ for_______________ (wait) now.
2. I live in a flat in City Garden in __________ (nine) Street.
3. It’s easy _________ (find) a good restaurant near my home.
4. As __________ (visit), we should keep the museum clean.
5. They would like the ____________ (cook) __________ some dishes for them.
6. My mother always asks me _________ (not play) tricks on others.
7. _______(luck), he passed the exam finally.
8. I will _______ (meet) my classmates at the school gate.
9. I’m going __________ (play) football this afternoon.
10. The ___________ (build) there have 15 floors.
IV.根据汉语完成句子。
1. 我打算去拜访新邻居。
I’m _____________________________________________.
2. 我恐怕他们不会再欢迎像你这样的游客。
I’m afraid _______________________________________.
3. 你住在哪一层楼？Which floor ____________________________________?
4. 住在像那样的街区是件很棒的事。
It’s good ___________________________________________.
Ⅴ.阅读理解。
I work in a small shop. It is near a factory. Everyday, workers, old ladies and house wives come to the shop to buy things.
I live in a house not far from the shop. I usually get up at six, have breakfast and then go to work by bike. I take some food along in my lunch box.
I get to the shop at about ten to seven. At seven customers begin to arrive. They buy meat, eggs, sugar, soybean, sauce, cooking oil, salt, candies, biscuits, and many other things. We don’t sell vegetables or fruit. There is a shop for these things nearby. I have my meal at noon from my lunch box. At seven in the evening we close the shop. I tidy things up and the go home for supper.
Some people may think my work isn’t interesting. But I do my bit for the modernizations, don’t I?
( ) 1. What does the ―I‖ in the passage do ? She is a __________.
A. worker
B. customer
C. teacher
D. saleswoman
( ) 2.The shop is a _________ shop.
A. grocery（副食）
B. vegetables
C.fruit
D. grain（粮食）
( ) 3.How long does she work every day?
A. Five hours
B. Fourteen hours
C. Twelve hours
D. Eight hours
( ) 4.Her house is ________ the shop. She often goes to work __________.
A. very far from, by bus
B. very close to, by bike
C. very far from, by bike
D. very close to, on foot
( ) 5.What does she think about her work?
A. She thinks her work is too tired
B. She doesn’t like having lunch in the shop
C. She thinks the long-hour work is a pleasure
D. She likes her work a lot though she is busy all day.
七年级下英语作业纸No.2
班级：________ 学号：________ 姓名：________ 成绩：________ 【作业内容】Unit 2-2，7下Neighbours ( ReadingⅠ)
Ⅰ. 词汇运用。
1.Reading and writing are important ____________（技能）.
2.My brother is an able ____________（工程师）.
3.Whose is the ___________（坏了）toy.
4.Can you ___________（修理）my computer.
5.If you know ___________（某人）else who collects them, please tell me.
6.We were ___________（幸运的）enough to catch the last bus.
7.Can you help me to solve the __________ （问题）? --With pleasure.
8.What is your dream after __________（大学）? --To do something helpful.
9 ________(志愿者) share their skills and help people in need.
10 The mechanic is __________(检查) the computer now .
II．根据词的适当形式填空。
1.Most of _________ (our) spend lots of time doing homework.
2.Can I have a new schoolbag, Mum? The old one is ___________ (break).
3.My neighbours are very kind and ___________ (help). I like them.
4.This is my __________ (three) time to see the singer.
5.I think it’s going to be a _________ (real) nice day tomorrow.
6.Will you do some ___________ (shop) with me this weekend?
7.He’s very __________ (luck) to get the small red flower at school?
8.They are going to ___________ (visitor) Shanghai next year.
9.Will they show their different __________ (skill) with us ?
10.Can you find any social ____________ (work) in your community centre?
III．单项选择。
( ) 1. Our hometown ________ a new school in the centre of the town next year.
A. builds
B. will build
C. build
D. has build ( ) 2. Mr Wang is ________ engineer. He works very hard.
A. the
B. a
C. an
D./
( ) 3. We can make a fire ________ the room warm.
A. to keep
B. keeping
C. keep
D. keeps ( ) 4. Tomorrow he ________ a kite, and then _______ boating.
A. will fly, will go
B. will fly, goes
C. is going to fly, will goes
D. flies, will go ( ) 5. Would you please _________ the TV? There is going to be a show on TV.
A. turn on
B. turn off
C. turn down
D. turn up ( ) 6. The hall is big enough _________ five hundred students in it.
A. to hold
B. holding
C. to holds
D. to holding ( )https://www.doczj.com/doc/4815984637.html,st summer, people planted __________ trees to make our city greener and more beautiful.
A. five millions
B. five millions of
C. five million
D. five million of ( ) 8. Please ______ who broke the window.
A. look
B. find
C. find out
D. look at ( ) 14. There's going to in tomorrow's newspaper.
A. have something new
B. have new something
C. be something new
D. be new something
( )15________ wonderful music it is! I like it very much.
A. What
B. How a
C. What a
D. How
Ⅳ完型填空。
We can see many animals, like rabbits, bees, dogs, birds, sheep...Do you know ___1____ these animals say things? When a rabbit sees something ____2____, it runs away at once. When it runs, ___3_____ tail moves up and down. When others see this, they run away ___4_____.
Many other animals use this kind of ____5____. The bee likes going out to look for food. It flies back home after ____6___ some food. It cannot tell the other bees where the food is by speaking to them. Instead, it dances in the air. Then the ____7____ bees know where the food is.
Some animals say things by ____8____ sounds. A dog ____9___ when it sees a stranger. Some birds can make several different sounds. Each one ____10____ its own meaning.
Now we know every animal has its own language.
( ) 1. A. how B. when C. why D. where
( ) 2. A. interesting B. dangerous C. near it D. danger
( ) 3. A. it B. its C. it’s D. its’
( ) 4. A. quickly B. also C. either D. back
( ) 5. A. jumping B. shouting C. running D. language
( ) 6. A. looks for B. looking for C. finds D. finding
( ) 7. A. another B. other C. others D. else
( ) 8. A. make B. makes C. making D. made
( ) 9. A. barks B. speaks C. says D. talks
( ) 10. A. have B. having C. had D. has
七年级下英语作业纸No.3
班级：________ 学号：________ 姓名：________ 成绩：________
【作业内容】Unit 2-3，7下Neighbours ( ReadingⅡ)
I.单项选择。
( ) 1.---Hello. Who __________? ---__________ Kitty speaking.
A. are you; I am
B. is that; This is
C. are you; This is
D. is this; It’s ( ) 2. –Excuse me, when will the train K307 arrive?
--Wait a minute. I’ll _________ it for you.
A. keep
B. check
C. read
D. pay
( ) 3. We often go to school _______ bike but today we all come to school _______ the bus.
A. by; by
B. on; on
C. by; on
D. on; by ( ) 4. If it rains this afternoon, please _______ your umbrella ______ me.
A. share; with
B. use, with
C. share, to
D. use, to ( ) 5. The girl is afraid ____________.
A. at fly
B. at flying
C. of fly
D. of flying
( ) 6. They ______ us _______ all kinds of problems.
A. help; do
B. help; to do
C. help; with
D. helps; with ( ) 7. Some social workers _______ different skills often meet at the centre.
A. with
B. have
C. is
D. be
( ) 8. He has _______ friends. He often plays cards with them.
A. few
B. a few
C. little
D. a little ( ) 9. --- What does the boy look like?
--- He is ________ his father. He also _______ eating mangoes.
A. likes; like
B. like; like
C. likes; likes
D. like; likes ( ) 10. ----Is there ________ in the room? ---- Sorry, I don’t know.
A. someone else
B. anyone else
C. else anyone
D. else someone II. 用所给词的适当形式填空。
1. I like Jay Chou’s songs because they can make me _________ (feel) great.
2. Someone __________ (like) the shirt very much.
3. The social workers will be happy ________ (give) you some ideas.
4. Can you do __________(some) shopping for them?
5. She often helps her mother __________ (clean) the house.
6. His friend is ready ____________ (do) that hard job.
7. –What are you doing ? --We ________ (plan) a birthday party for Daniel.
8. ---There is something wrong with my computer.
---Ok, I’ll ask my uncle ____________ (help) you.
9. There are different _________ (skill) for us to learn in school.
10. --- Are you going to have a ________ (meet) this weekend? --- Yes, we are.
11. You are lucky ___________(pass) all the exams.
12. -----Why are you late today? ---- Because my clock _______________ (not work).
III. 完成句子
1你的邻居们什么样？
What ________________________________________?
2她们帮助我们解决各种难题。
They help us ________________________________.
3.你真幸运住在那样的街区。
You are lucky _________________________________.
4.我打算让一位电脑工程师来检查一下我的电脑。
I’m going to _______________________________________ my computer.
5.你的自行车出问题了吗？
Is there _______________________________ your bike?
6.一些大学生很乐意帮助人。
Some college students __________________________.
7他们经常在社区中心见面。
They often meet ___________________________
8我的梦想是长大后成为一名工程师
My dream____________________________________ when I grow up .
9本周他们打算举行运动会吗？
Are they going to ____________________________?
Ⅳ. 阅读理解
There are many things that you should be careful when you are at home alone. Read the following solutions to protect （保护）yourself.
Keep the door locked when you are alone at home. Many people think it’s the best way to protect yourself.
Keep a list of phone numbers to call for help, such as 110, the police station.
Be careful with the electrical appliances （家用电器）. If you don’t know how to use them, ask your parents. Make a safety check before going to sleep.
Look through the keyhole when you hear the doorbell. If there are strangers, ask ―Who’s that?’with the door locked and say ―Come back later.‖Don’t tell them that your parents are away. Say ―Mum’s having a shower.‖ or ―Dad’s having a sleep.‖
根据短文内容填空：
1.When you are alone at home, you should keep the door ________________.
2.To ___________________, you need to keep a list of phone numbers.
3.Before ____________________, make a safety check of the electrical appliances.
4.Don’t tell the strangers that your parents _____________________.
5.There are_____ solutions here telling you how to protect yourselves when you are at home___.
七年级下英语作业纸No.4
班级：________ 学号：________ 姓名：________ 成绩：________
【作业内容】Unit 2-4, 7下Neighbours ( GrammarⅠ)
Ⅰ. 句型转换。
1.Justin and Paul will grow some flowers there.（对划线部分提问）
____________ will Justin and Paul ___________ there?
2. They will take their umbrella with them tomorrow.（改为否定句）
They _______ ________ take their umbrella with them tomorrow.
3. Kate will return to Nanjing in a week.（对划线部分提问）
__________ ___________ Kate return to Nanjing?
4. Bill is going to watch TV this afternoon.（改为一般疑问句）
________ Bill __________ to watch TV this afternoon?
5. Where shall we have a big farewell party?（改为同义句）
Where __________ we ___________ ____________ have a big farewell party?
6. My cousin will fly to Shanghai next week. （对划线部分提问）
__________ ___________ your cousin __________ next week?
Ⅱ. 单项选择
( ) 1. I don’t know if his uncle ________tomorrow, I think he ________ if it doesn’t rain.
A. will come, comes
B. will come, will come
C. comes, comes
D. comes, will come ( ) 2. He will be back ________ a few minutes.
A. with
B. for
C. on
D. in
( ) 3. What time _________ we meet at the gate tomorrow?
A. will
B. would
C. do D . are
( ) 4. He will have a holiday as soon as he _______ the work next year.
A. finishes
B. doesn’t finish
C. will finish
D. won’t finish ( ) 5. Why ________ they leaving for New York in only one week?
A. are
B. will
C. shall
D. is
( ) 6. I hope everyone _________ the English test tomorrow.
A. pass
B. to pass
C. passes
D. will pass
( ) 7. He ________ to us as soon as he gets there.
A. writes
B. has written
C. will write
D. wrote
( ) 8. He ________ in three days.
A. coming back
B. came back
C. will come back
D. is going to coming back ( ) 9. If it ________ tomorrow, we'll go roller-skating.
A. isn't rain
B. won't rain
C. doesn't rain
D. doesn't fine
( ) 10. - Will his parents go to see the Terra Cotta Warriors tomorrow?
---- No, ________ （不去）.
A. they willn't.
B. they won't.
C. they aren't.
D. they don't.
Ⅳ. 阅读理解
( )1.After reading this, we know this is ________.
A. a studying plan
B. a teaching plan
C. a school report
D. a working plan
( )2.Which of the following is not mentioned in the form? ____.
A. P.E.
B. Music
C. Mathematics
D. History ( )3.Edward’s best subject is ________.
A. Science
B. English
C. Geography
D. French ( )4.Edward is NOT so good at ________.
A. maths and history
B. science and geography
C. history and French
D. music and English
( )5.According to the form, which of the following sentences is true?
A. Edward can’t sing songs very well.
B. School will begin again on May 6th.
C. Edward can do better if he works hard next term.
D. Edward doesn’t do well in science.
七年级下英语作业纸No. 5
班级：________ 学号：________ 姓名：________ 成绩：________ 【作业内容】Unit 2-5, 7下Neighbours ( Grammar II)
I. 单项选择
( ) 1. They __________ an English evening next Sunday.
A. are having
B. are going to have
C. will having
D. is going to have ( ) 2. ______ you ________ free next Sunday?
A. Will, are
B. Will, be
C. Do, be
D. Are, be
( ) 3. He ________ there at ten tomorrow morning.
A. will
B. is
C. will be
D. be
( ) 4. Li Ming is 10 years old now, next year he ________11.
A. is
B. is going to be
C. will be
D. will to be ( ) 5. It _________ us a long time to learn English well.
A. takes
B. cost
C. spends
D. will spend ( ) 6. It __________ the year of the horse next year.
A. is going to be
B. is going to
C. will be
D. will is
( ) 7. ________ two important meetings next week.
A. There will have
B. There are going to have
C. There is going to be
D. There will be
( ) 8. --Let’s go out to play football, shall we?
--Ok. I ___________.
A. will coming
B. be going to come
C. come
D. am coming ( ) 9. --Shall I come again tomorrow afternoon? -- ______________.
A. Yes, please
B. Yes, you will
C. No, please
D. No, you won’t ( ) 10. The train __________ at 11.
A. going to arrive
B. will be arrive
C. is going to
D. is arriving
II. 用所给词的适当形式填空
1.Kitty ___________ (return) to school the day after tomorrow.
2.We ___________ (meet) at the school gate at 8:00 a.m tomorrow, shall we?
3.My parents _____________ (have) a trip to Suzhou next week.
4.It’s so sunny. I don’t think it __________ (rain).
5.--_________ Jim __________ (join) in the basketball match? --Of course, he is.
6.--__________ you _________ (arrive) at the airport soon? --Yes, of course.
7.There are too many black clouds in the sky. I ________ (take) my umbrella with me.
8.There _____________ (be) a volleyball match in our playground this afternoon.
9.They ______________ (arrive) home in thirty minutes.
10.He _____________ (want) to be a teacher when he grows up.
Ⅲ.根据汉语意思完成句子
1我计划后天和我叔叔家一日游
I am planning __________________________the day after tomorrow
2他打算生火取暖
He is going to _____________________________.
3阴云密布，我想快要下雨了。
It’s ____________,I think __________________________
4 我们将请一位工程师为你检查
We will ask __________________________it for you
5你将等我们回电话吗？
Will you wait for us ___________________________?
Ⅳ阅读理解
Mr.Smith lives in a village(村庄), but he works in a big city. He goes to work by train every morning and comes home in the same way.
This morning, when he is reading his newspaper (报纸) on the train, a man behind him says
―hello‖ to him and begins to talk to him, ―Your life is not interesting, is it? You take the same train every morning, and you always sit in the same seat and read the same newspape r.‖―How do you know all that about me?‖Mr.Smith says angrily（生气地）.
―Because I always sit in the same seat behind you.‖the man answers.
( )1. Mr.Smith works ____________.
A. in a town
B. in a village
C. in a city
D. in the country ( )2. He comes back home from work _____.
A. by ship
B. by bus
C. on foot
D. by train
( )3. When he is on the train, Mr.Smith often_____.
A. reads books
B. reads newspaper
C. talks to others
D. listens to others ( )4. Mr.Smith _____.
A. likes the man very much
B. likes reading books
C.doesn’t like the man at all
D. has much money
( )5. The man knows Mr.Smith because_____
A. he is Mr.Smith’s good friend.
B.he work in the same factory.
C. he sits behind Mr.Smith on the same train every day.
D. they live in the same village.
七年级下英语作业纸No. 6
班级：________ 学号：________ 姓名：________ 成绩：________
【作业内容】Unit 2-6，7下Neighbours ( Integrated skills )
I. 根据句意、首字母或中文提示填写单词。
1. Your voice __________（听起来）like Hanhong’s.
2. The __________（经理）won’t go to have a meeting this afternoon.
3. The food in that r___________ tastes good, so let’s go there.
4. There are so many people waiting for the bus at the bus s________.
5. Are you going to Dalian by t________?
6. His _________ 办公室）is on the third floor of the tall building.
7. My sister likes drawing, so she is going to be an a__________ when she grows up.
8.Are there two __________ (公司) near our home.
9. No one knows what kind of cars we will have in the ___________ （将来）.
10 . Many _________ （邮递员）were good at riding bikes in the past.
11. ----What are your family __________(member) jobs?
12. They are going to the _________（站）at 10:00 a.m.
II.单项选择。
( ) 1.–Where are you going? --I’m going to the ________ to ask a policeman for help.
A. restaurant
B. school office
C. police station
D. post office ( ) 2. There are ________ stars in the sky.
A. million of
B. millions of
C. the million
D. a million of ( ) 3. The boy’s mother is _______. He has to look after his ________ mother.
A. bad, sick
B. ill, bad
C. ill, sick
D. sick, ill ( ) 4. –How about going shopping on Hunan Road this evening?
--_________, but I’ve to prepare for tomorrow’s exam.
A. I can’t
B. Sounds great
C. That’s right
D. No, I’m terribly sorry ( ) 5. –Can you _________ anything strange?--It ________ like a small mouse.
A listen, sounds B. hear, listens C. hear, sounds D. sound, hears ( ) 6. These are some pens. Please ____________.
A. give me them
B. give them me
C. give them to me
D. give me to them ( ) 7. ---___________ your father? --- He’s a cook.
A. What does
B. What is
C. How is
D. How does ( ) 8. Lucy is 12 years _______. She has two sisters and Ann is her ________ sister.
A. old; older
B. elder; elder
C. old; elder
D. older; older
Ⅲ.阅读理解。
Linda Evans was my best friend—like the sister I never had. We did everything togeth er: piano lessons, movies, swimming, horseback riding.
When I was 13, my family moved away. Linda and I kept in touch through letters, and we saw each other on special time—like my wedding (婚礼) and Linda’s. Soon we we re busy with children and moving to new homes, and we wrote less often. One day a card that I sent came back, stamped ―Address (地址) Unknown. ‖ I had no idea how to find Linda.
Over the years, I missed Linda very much. I wanted to share (分享) happiness of my children and then grandchildren. And I needed to share my sadness when my brother an d then mother died. There was an empty place in my heart that only a friend like Lind a could fill.
One day I was reading a newspaper when I noticed a photo of a young woman who looked very much like Linda and whose last name was Wagman —Linda’s ma rried name. ―There must be thousands of Wagmans,‖ I thought, but J still wrote to her.
She called as soon as she got my letter. ―Mrs Tobin!‖ she said excitedly, ―Linda Evans Wagman is my mother. ‖
Minutes later I heard a voice that I knew very much, even after 40years, laughed and cried and caught up on each other’s lives. Now the empty place in my heart is filled. And there’s one thing that Linda and I know for sure: We won’t lose each other again! ( )1. The writer went to piano lessons with Linda Evans _______.
A. at the age of 13
B. before she got married
C. after they moved to new homes
D. before the writer’s family moved away ( )2. They didn’t often write to each other because they _______.
A. got married
B. had little time to do so
C. didn’t like writing letters
D. could see each other on special time ( )3. There was an empty place in the writer’s heart be cause she _______.
A. was in trouble
B. didn’t know Linda’s address
C. received the card that she sent
D. didn’t have a friend like Linda to share her happi ness or sadness
( )4. The writer was happy when she _______.
A. read the newspaper
B. heard Linda’s voice on the phone
C. met a young woman who looked a lot like Linda
D. wrote to the woman whose last name was Wagman
( )5. They haven’t kept in touch _______.
A. for about 40years
B. for about 27years
C. since they got married
D. since the writer’s family moved awa y
七年级下英语作业纸No. 7
班级：________ 学号：________ 姓名：________ 成绩：________
【作业内容】Unit 2-7，7下Neighbours ( Study Skills)
I. 选出不可连读的一项
1. ( ) A. an orange B. get out C. a tree D. sit down
2. ( ) A. best player B. far from C. there are D. stand up
3. ( ) A. each other B. we enjoy C. an hour D. low price
4. ( ) A. play together B. there is C. cold drink D. hard time
5. ( ) A. black dog B. big apple C. go out D. we listen
Ⅱ. 用所给词的适当形式填空
1. Look, there are two _________ (policeman) over there.
2. How many _________ (people) are there in your family?
3. Your story ________ (sound) very interesting.
4. –What are you going to do when you grow up. --I _________ (be) a basketball player.
5. He wants to be a player _________ (like) Yi Jianlian.
Ⅲ. 单项选择
( ) 1. His father works in an office __________ his home.
A. far from
B. away from
C. is far way from
D. far away
( ) 2. My father often goes to Shanghai__________.
A. by train
B. by a train
C. in a train
D. on train
( ) 3. Peter doesn’t live near his school, _________ he has to go to school by bus.
A. so
B. and
C. but
D. or
( ) 4. –Is there a class meeting in the afternoon? --No, ___________.
A. there is
B. there isn’t
C. there are
D. there aren’t ( ) 5. A car hit her yesterday and she is now____. Let’s _____her this af ternoon.
A. in the hospital, go and to see
B. in hospital, go and see
C. in hospital, go and see
D. in the hospital, to go and to see
( ) 6. ----What about walking on the ice? ----That sounds_______ .
A. danger
B. well
C. dangerous
D. dangerously ( ) 7. Why are you driving so fast, Tony? I’m feeling _______.
A. ill
B. sick
C. illness
D. sickness
( )8 –Could I borrow your camera ?---________, but please give it back by Saturday.
A I am sorry
B Of course
C Certainly not
D No, thanks
( )9---Could you pass me the dictionary ?---________
A Yes , I could
B Sure , here you are
C No , I couldn’t
D No, that’s no problem ( )10 I’m so tired after ________ walk.
A. three hours
B. three hours’
C. three hour’s
D. three hour
( ) 11 ---How do you like the DVD? ----- ___________.
A. It’s like a book
B. It’s made in Hong Kong
C. It’s about travel
D. It’s wonderful ( ) 12 His kite ________ paper. Can you make one _______ me?
A. is made from; for
B. is made of; to
C. is made of; for
D. is made from; to Ⅳ. 阅读理解
The world is not hungry , but it is thirsty . It seems strange that nearly 3/4 of the earth is covered with water while we say we are short of (短缺) water. Why? Because about 97% of water on the earth is sea water which we can't drink or use for watering plants directly (直接地) . Man can only drink and use the 3% - the water that comes from rivers and lakes. And we can't even use all of that, because some of it has been polluted (污染) .
Now more water is needed. The problem is: Can we avoid (避免) a serious water shortage later on? First, we should all learn how to save water. Secondly, we should find out the ways to reuse it . Scientists have always been making studies in the field. Today, in most large cities water is used only once and then runs to the sea or rivers . But it can be used again. Even if (即使) every large city reused its water, still there would not be enough. What could people turn to next?
The sea seems to have the best answer. There is a lot of water in the sea. All that needs to be done is to get the salt out of the sea water. This is expensive, but it's already used in many parts of the world. Scientists are trying to find a cheaper way of doing it. So you see, if we can find a way out, we'll be in no danger of drying up.
( )1 . The world is thirsty because ________.
A. 3/4 of the earth is covered with water
B. we have enough sea water to use directly
C. we haven't used all the water in rivers and lakes
D. about 97% of water on the earth can't be drunk or used for watering plants directly ( )2. Which of the following is true ?
A. 3% of water on the earth is in rivers and lakes.
B. 75% of water on the earth is the sea.
C. 97% of the earth is covered with water.
D. 3% of water on the earth is sea water. ( )3. From the passage we learn _________.
A. if every city reuses its water, we'll be in no danger of drying up
B. man can only drink and use about 25% of water on the earth
C. today in most large cities water is used only once
D. water can be used only once
( )4 . To avoid the serious water shortage , which of the following is the most important?
A. Save water and try to make good use of the water in rivers and lakes.
B. Don't pollute water and keep all rivers and lakes clean.
C. Make dirty water clean and then reuse it.
D. Try to find a cheaper way to get the salt out of the sea water.
( )5. The name of the passage would be ________
A. The Sea Water
B. How to Save Water
C. The Thirsty World
D. The Polluted Water
七年级下英语作业纸No.8
班级：________ 学号：________ 姓名：________ 成绩：________
【作业内容】Unit 2-8，7下Neighbours (Task)
I. 用所给词的适当形式填空。
1They _________ (visit) Nanjing this coming Saturday.
2Each member at the Art and Design Group ________ (know) a lot about that.
3Some social workers are ready ___________ (help) you.
4They will be happy __________ (get) some information.
5Are you _________ (worry) about your homework?
6The designer knows what __________ (wear) to a birthday party.
7What ________ you ________ (do) these days?
8 My computer ___________ (not work). Maybe there is something wrong with it.
9Our teacher often makes all of us __________(water) the flowers.
Ⅱ. 词汇运用。
1.Can you see those _________ （通知）on the noticeboard.
2.He wants to know some ____________（信息）about the old man from America.
3.They are trying to find answers to the questions in three _________（小组）.
4.It is going to snow the day after tomorrow, and the temperature will ______（在...下面）zero.
5.The good doctors and nurses will make you feel ________（更好).
6.Is there __________ (something) wrong with your new bike?
7. My mother w__________ about me every day.
8.Do you know a lot about ___________（款式）and colours?
9.I would like you to give some i__________ about what to wear to tomorrow’s party.
10.His home is very beautiful, because he knows how to d__________ his home.
Ⅲ. 完成句子
1.我们打算在三月五号下午在社区活动中心举行一个“帮手”聚会。
We are going to have a ―helping hands‖ meeting_____________________________________.
2.最近你觉得不舒服吗？Are you __________________________ these days?
3你的洗衣机出问题了吗？Is there _________________________ your washing machine? 4.我们所有的组员对风格和颜色非常了解。
All our group members ____________________________________________.
5.她们会很高兴来给你一些建议。
They will be happy_______________________________________________.
Ⅳ. 阅读理解
A friend of mine named Paul received an expensive car from his brother as a Christmas present. On Christmas Eve when Paul came out of his office, a street urchin(顽童) was walking around
the shining car. ―Is this your car, sir?‖ he asked.
Paul answered, ―Yes, my brother gave it to me for Christmas.‖ The boy was surpri sed. ―You mean your brother gave it to you and it did cost you nothing? Sir, I wish…‖He hesitated(犹豫). Paul thought of course he knew what the boy wanted, but what the boy said surprised him greatly. ―I wish,‖ the boy went on, ―that I could be a brother l ike that.‖ Paul looked at the boy in surprise, and then he said again,―Would you like t o take a ride in my car?‖ ―Oh yes, I’d love to,‖ the boy answered.
After a short ride, the boy turned and with his eyes shining, said, ―Sir, would you mind driving in front of my house?‖
Paul smiled a little. He thought he knew what the boy wanted. He wanted to show his neighbors that he could ride home in a big car. But Paul was wrong again. ―Will you stop where those two steps are?‖ the boy asked.
He ran up to the steps. Then in a short while Paul heard him coming back, but he was not coming fast. He was carrying his little crippled(残疾的) brother. He sat down on the step and pointed to the car.
―There he is, Buddy, just like I told you upstairs. His brother gave it to him for C hristmas and it didn’t cost him a cent. And some day I’m goin g to give you one just li ke it…then you can see for yourself all the nice things in the Christmas windows that I’ve been trying to tell you about.‖
Paul got out and lifted the boy to the front seat of his car. The shining-eyed elder brother climbed in beside him and the three began an unforgettable holiday ride.
( )1.The street urchin was very surprised when _______.
A. he met Paul
B. Paul told him about the car
C. Paul received an expensive car
D. he was walking around the car
( )2. From the story we can see the urchin _______.
A. wished to give his brother a car
B. wanted Paul’s brother to give him a car
C. wished he could have a brother like Paul’s
D. wished Paul could be a brother like that
( )3. The urchin asked Paul to stop his car in front of his house ______.
A. to show he had a rich friend
B. to show his neighbors the big car
C. to let his brother ride in the car
D. to tell his brother about his wish
( )4. We can find from the story that _______.
A. the urchin wished Paul to give his car to Buddy
B. the urchin wished to have a rich brother
C. the urchin had a deep love for his brother
D. the urchin’s wish came true in the end
( )5. The best name of the story is _______.
A Christmas Present B. Paul, a Kind-hearted Person
C. A Brother Like That
D. An Unforgettable Holiday Ride
课时达标训练(一)质点参考系和坐标系 [基础练] 一、选择题 1．在研究物体的运动时，力学中引入“质点”的概念，从科学方法上来说属于( ) A．极限分析物理问题的方法 B．观察实验的方法 C．建立理想物理模型的方法 D．等效替代的方法 2．[多选]以下关于质点和参考系的说法正确的是( ) A．研究“嫦娥二号”卫星在绕月球飞行的轨迹时，卫星可以看成质点 B．研究在平直公路上的汽车的行驶速度时，可以将汽车看成质点 C．参考系是在描述物体运动时，用来作参考的物体，必须选静止的物体 D．参考系可以任意选择，并且选择不同的物体作参考系来描述同一个物体的运动时，结果是相同的 3．如图所示，我国空军在进行空中加油训练，大型加油机与受油机在空中以同样的速度沿同一方向水平飞行。下列说法中正确的是( ) A．选地面为参考系，受油机是静止的 B．选地面为参考系，加油机是静止的 C．选加油机为参考系，受油机是运动的 D．选加油机为参考系，受油机是静止的 4．[多选]关于坐标系，下列说法正确的是( ) A．建立坐标系是为了定量描述物体的位置以及位置的变化 B．坐标系都是建立在参考系上的 C．坐标系的建立与参考系无关 D．物体在平面内做曲线运动，需要用平面直角坐标系确定其位置及位置的变化 二、非选择题 5．如图所示是特技跳伞运动员的空中造型图。当运动员们保持该造型下落时，若其中一名运动员以相邻的运动员为参考系，则他自己的运动情况怎样？当他俯视大地时，看到大地迎面而来，是以什么物体作为参考系的？ 6. 如图所示，一根长0.8 m的直杆竖直放置，现有一内径略大于杆直 径的环，从杆的顶点A向下滑动，规定向下为正方向。
课时达标训练(十二) 等比数列的前n 项和 [即时达标对点练] 题组1 等比数列前n 项和公式的基本运算 1．等比数列{}a n 的各项都是正数，若a 1＝81，a 5＝16，则它的前5项和是( ) A ．179 B ．211 C ．348 D ．275 解析：选B 由16＝81×q 5－1，q ＞0，得q ＝2 3 . 于是S 5＝81????1－????2 35 1－2 3 ＝211. 2．设S n 为等比数列{}a n 的前n 项和，8a 2＋a 5＝0，则S 5 S 2等于( ) A ．11 B ．5 C ．－8 D ．－11 解析：选D 由条件得8a 1q ＋a 1q 4＝0，因为{}a n 为等比数列，所以a 1q ≠0，则q ＝－2， 于是，S 5S 2＝1－q 5 1－q 2 ＝－11. 3．等比数列{}a n 的前n 项和S n ＝3n ＋ 1＋a ，则a 的值为( ) A ．3 B ．－3 C ．－1 D ．任意实数 解析：选B 由q ≠1时，等比数列的前n 项和为S n ＝A ·q n －A 的形式知， S n ＝3n ＋1＋a ＝3·3n ＋a 中a ＝－3. 4．设等比数列{}a n 的前n 项和为S n ，若S 3＋S 6＝2S 9，则公比q 的值为________． 解析：法一：q ＝1时不合题意．∴q ≠1，a 1（1－q 3）1－q ＋a 1（1－q 6）1－q ＝2a 1（1－q 9）1－q ， 解得q ＝－ 3 4 2 . 法二：∵S 3＋S 6＝2S 9，∴2(a 1＋a 2＋a 3)＋a 4＋a 5＋a 6＝2(a 1＋a 2＋…＋a 9)，∴－(a 4＋a 5＋a 6)＝2(a 7＋a 8＋a 9)，∴－(a 4＋a 5＋a 6)＝2q 3 (a 4＋a 5＋a 6)，解得q ＝－ 3 42 . 答案：－ 3 42 5．已知在公比为2的等比数列{a n }中，a 2＋a 5＋a 8＋a 11＋a 14＋a 17＋a 20＝13，求该数列前21项的和S 21. 解：设等比数列{a n }的首项为a 1，公比q ＝2，前n 项和为S n .由题知a 2，a 5，a 8，a 11，
课时达标训练 1.(2013·泰州高一检测)下列化学用语正确的是( ) 的电子式H+]2-H+ B.次氯酸的结构式：H—Cl—O 的结构式N≡ D.质子数为53、中子数为72的碘原子I 2.(2014·宿迁高一检测)下列叙述错误的是( ) A.带相反电荷的离子之间的相互吸引力称为离子键 B.金属元素与非金属元素化合时,不一定形成离子键 C.只有阴、阳离子间才能形成离子键 D.非金属元素也可能形成离子键 3.(双选)下列关于物质与化学键的关系正确的是( ) A.离子化合物可能含共价键,共价化合物中不含离子键 B.共价化合物可能含离子键,离子化合物中只含离子键 C.构成单质分子的微粒一定含有共价键 D.在氧化钠中,除氧离子和钠离子的静电吸引作用外,还存在电子与电子、原子核与原子核之间的排斥作用 4.某元素的原子最外层只有一个电子,它与卤素结合时,所形成的化学键是 ( ) A.一定是离子键 B.一定是共价键 C.可能是离子键,也可能是共价键
D.使两原子都达到8电子稳定结构 5.(2014·聊城高一检测)下列分子的电子式书写正确的是( ) A.氨气：H B.四氯化碳：Cl C.氮气 D.二氧化碳 6.下列用电子式表示的化合物的形成过程正确的是( ) 7.(2014·新乡高一检测)下列物质中,含共价键的离子化合物是( ) 2 是常见的绿色氧化剂,其分子结构示意图如图所示,下列有关其说法不正确的是( ) 中含有离子键
中存在极性共价键 中存在非极性共价键 D.液态H2O2分子间存在氢键 9.(2014·济宁高一检测)标号为①～⑩的元素,在元素周期表中的位置如下： 试回答下列问题： (1)其原子只要形成一对共用电子对就达到了稳定结构的元素是。(填写元素符号) (2)①和④号元素形成的化合物的化学式为,用电子式表示其形成过程为。 (3)⑧号元素的最高价氧化物对应的水化物的化学式是。 (4)①、⑤、⑦号元素形成的一种化合物的电子式是,在该化合物中既含有键,又含有键。 10.(2014·无锡高一检测)有下列7种物质：A.干冰、B.氧化镁、C.氯化铵、 D.固态碘、 E.碱、 F.冰、 G.过氧化钾 (1)熔化时需要破坏共价键和离子键的是(填序号,下同); (2)熔点最低的是; (3)既有离子键又有共价键的是;
高中物理选修3-1 全册课时训练 目录 第一章静电场 第1课时电荷及其守恒定律 第2课时库仑定律 第3课时库仑定律与力学的综合应用 第4课时电场强度 第5课时电势能和电势 第6课时电势差 第7课时电势差与电场强度的关系 第8课时电场中功能关系问题分析 第9课时静电现象的应用 第10课时电容器的电容 第11课时平行板电容器问题求解方法 第12课时带电粒子在电场中的运动 第13课时电场中力学综合问题分析 第二章恒定电流 第1课时电源和电流 第2课时电动势 第3课时欧姆定律
第4课时测量小灯泡的伏安特性曲线 第5课时串并联电路 第6课时电流表和电压表 第7课时焦耳定律 第8课时导体的电阻 第9课时测金属丝的电阻率 第10课时闭合电路欧姆定律 第11课时闭合电路欧姆定律的应用 第12课时多用电表的原理及应用 第13课时测量电源电动势和内阻 第14课时电阻的测量方法 第15课时简单逻辑电路 第三章磁场 第1课时磁现象和磁场 第2课时磁感应强度 第3课时几种常见的磁场 第4课时通电导线在磁场中受到的力 第5课时运动电荷在磁场中受到的力 第6课时带电粒子在匀强磁场中的运动 第7课时带电粒子在复合场中的运动 第8课时带电粒子在有界磁场中运动的临界问题
1. 电荷 ①概念：自然界中总共有两种电荷：即正电荷和负电荷，其作用的基本特点是：同种电荷相互排斥；异种电荷相互吸引。 ②使物体起电的方法有三种：即摩擦起电、感应起电、接触起电，其实质都是电子的转移。 摩擦起电：当两物体相互摩擦时，因为不同物质对电子的束缚能力的强弱不同，对电子束缚能力相对较弱的物体失去电子而带正电，而对电子束缚能力相对较强的得到电子而带负电。 感应起电：当一个带电体靠近导体时由于电荷间相互吸引或排斥，导体中的自由电荷便会趋向或远离带电体，使导体靠近带电体的一端带异种电荷，远离的一端带同种电荷，这种现象叫静电感应。利用静电感应使金属导体带电的过程，叫做感应起电。 接触起电：用带电的物体与不带电的导体（或两个带相反电荷但所带电荷量不同的物体）接触，都可以电荷转移，进而使导体也带电（两物体带等量同种电荷），这种现象称为接触起电。 2. 电荷守恒定律 荷既不能创生，也不能消灭，它只能从一个物体转移到另一个物体，或从物体的一部分转移到另一部分，在转移的过程中，系统的电荷总数保持不变。 电荷守恒定律的另一种表述为：一个与外界没有电荷交换的系统，电荷的代数和是保持不变的。 3. 元电荷 ①电荷量：表示电荷的多少。单位：库仑，简称库。符号：C。 ②元电荷：最小电荷量，用e表示。e=1.60×10–19 C。所有带电体的电荷量或者等于e，或者是e的整数倍。电荷量不能连续变化。
课时达标训练《陈情表》 (时间：40分钟 分值：50分) 一、基础巩固(15分，选择题每小题2分) 1.[对应链接高考]下列选项中不含通假字的一项是( ) A ．夙遭闵凶 B ．缙绅、大夫、士萃于左丞相府 C ．共其乏困 D ．辞不赴命 2．下列各组句子中加点词的意义和用法不相同的一项是( ) A.????? 生孩六月，慈父见．背私见．张良 B.????? 州司临门，急于．星火冰，水为之而寒于．水 C.????? 外无期功强近之．亲维扬帅下逐客之．令
D.????? 欲苟顺私情，则．告诉不许于其身也，则．耻师焉 3．下列各句中加点词的古今意义相同的一项是( ) A ．零丁孤苦，至于成立．． B ．岂敢盘桓，有所希冀．． C ．是以区区．． 不能废远 D ．欲苟顺私情，则告诉．． 不许 4．下列句中加点词的活用现象，与其他三项不同的一项是( ) A ．历职． 郎署 B ．但以刘日． 薄西山 C ．非臣陨首所能上． 报 D ．臣不胜犬马．． 怖惧之情 5．下列句子的句式特点与其他三项不同的一项是( ) A ．州司临门，急于星火 B ．计未定，求人可使报秦者 C ．蚓无爪牙之利，筋骨之强
D．缙绅而能不易其志者 6．名篇名句默写。(每空0.5分，共5分) (1)______________，内无应门五尺之僮；____________，形影相吊。 (2)郡县逼迫，催臣上道；____________，____________。 (3)____________，凡在故老，犹蒙矜育，____________，特为尤甚。 (4)但以刘日薄西山，__________________，人命危浅，________________。 (5)__________，死当结草。__________，谨拜表以闻。 二、阅读鉴赏(19分，选择题每小题3分) 阅读下面的文言文，完成7～10题。 李密，字令伯，犍为武阳人也，一名虔。父早亡，母何氏醮①。密时年数岁，感恋弥至，烝烝②之性，遂以成疾。祖母刘氏，躬自抚养，密奉事以孝谨闻。刘氏有疾，则涕泣侧息，未尝解衣，饮膳汤药必先尝后进。
2021年高中数学课时达标训练十一新人教A 版选修 题组1 由抛物线方程求焦点坐标和准线方程 1．对抛物线y ＝4x 2 ，下列描述正确的是( ) A ．开口向上，焦点为(0，1) B ．开口向上，焦点为? ? ???0，116 C ．开口向右，焦点为(1，0) D ．开口向右，焦点为? ? ? ??0，116 2．抛物线y ＝－x 2 8的准线方程是( ) A ．x ＝132 B ．y ＝2 C ．x ＝1 4 D ．y ＝4 3．抛物线y 2 ＝ax (a ≠0)的焦点到其准线的距离是( ) A. |a |4 B.|a |2 C ．|a | D ．－a 2 题组2 求抛物线的标准方程 4．焦点是F (0，5)的抛物线的标准方程是( ) A ．y 2 ＝20x B ．x 2 ＝20y C ．y 2＝120x D ．x 2 ＝120 y 5．顶点在原点，且过点(－4，4)的抛物线的标准方程是( ) A ．y 2 ＝－4x B ．x 2 ＝4y C ．y 2 ＝－4x 或x 2 ＝4y D ．y 2 ＝4x 或x 2 ＝－4y 题组3 抛物线定义的应用 6．设圆C 与圆x 2 ＋(y －3)2 ＝1外切，与直线y ＝0相切，则C 的圆心轨迹为( ) A ．抛物线 B ．双曲线 C ．椭圆 D ．圆 7．若抛物线y 2 ＝8x 上一点P 到其焦点F 的距离为9，则点P 的坐标为( ) A ．(7，±14) B ．(14，±14) C ．(7，±214) D ．(－7，±214)
8．若点P 是抛物线y 2 ＝2x 上的一个动点，求点P 到直线3x －4y ＋72＝0的距离与P 到 该抛物线的准线的距离之和的最小值． 题组4 抛物线方程的实际应用 9．某抛物线拱桥跨度是20米，拱桥高度是4米，在建桥时，每4米需用一根支柱支撑，求其中最长支柱的长． 10．如图所示，一隧道内设双行线公路，其截面由长方形的三条边和抛物线的一段构成，为保证安全，要求行驶车辆顶部(设为平顶)与隧道顶部在竖直方向上高度之差至少有0.5米． (1)以抛物线的顶点为原点O ，其对称轴所在的直线为y 轴，建立平面直角坐标系(如图)，求该抛物线的方程； (2)若行车道总宽度AB 为7米，请计算通过隧道的车辆限制高度为多少米(精确到0.1米)? [能力提升综合练] 1．已知抛物线y 2 ＝2px (p >0)的准线与圆(x －3)2 ＋y 2 ＝16相切，则p 的值为( ) A.1 2 B ．1 C ．2 D ．4 2．抛物线y ＝12x 2上的点到焦点的距离的最小值为( ) A ．3 B ．6 C.148 D.1 24 3．动点到点(3，0)的距离比它到直线 x ＝－2的距离大1，则动点的轨迹是( ) A ．椭圆 B ．双曲线 C ．双曲线的一支 D ．抛物线 4．已知F 是抛物线y 2＝x 的焦点，A ，B 是该抛物线上的两点，|AF |＋|BF |＝3，则线段 AB 的中点到y 轴的距离为( ) A.3 4 B ．1 C.54 D.74
2019-2020年高中数学课时达标训练十二抛物线及其标准方程新人教A 版 选修 题组1 由抛物线方程求焦点坐标和准线方程 1．对抛物线y ＝4x 2 ，下列描述正确的是( ) A ．开口向上，焦点为(0，1) B ．开口向上，焦点为? ????0，116 C ．开口向右，焦点为(1，0) D ．开口向右，焦点为? ????0，116 2．抛物线y ＝－x 2 8的准线方程是( ) A ．x ＝132 B ．y ＝2 C ．x ＝1 4 D ．y ＝4 3．抛物线y 2 ＝ax (a ≠0)的焦点到其准线的距离是( ) A. |a |4 B.|a |2 C ．|a | D ．－a 2 题组2 求抛物线的标准方程 4．焦点是F (0，5)的抛物线的标准方程是( ) A ．y 2 ＝20x B ．x 2 ＝20y C ．y 2＝120x D ．x 2 ＝120 y 5．顶点在原点，且过点(－4，4)的抛物线的标准方程是( ) A ．y 2 ＝－4x B ．x 2 ＝4y C ．y 2 ＝－4x 或x 2 ＝4y D ．y 2 ＝4x 或x 2 ＝－4y 题组3 抛物线定义的应用 6．设圆C 与圆x 2 ＋(y －3)2 ＝1外切，与直线y ＝0相切，则C 的圆心轨迹为( ) A ．抛物线 B ．双曲线 C ．椭圆 D ．圆 7．若抛物线y 2 ＝8x 上一点P 到其焦点F 的距离为9，则点P 的坐标为( ) A ．(7，±14) B ．(14，±14) C ．(7，±214) D ．(－7，±214) 8．若点P 是抛物线y 2 ＝2x 上的一个动点，求点P 到直线3x －4y ＋72＝0的距离与P 到 该抛物线的准线的距离之和的最小值．
[即时达标对点练] 题组1 充分、必要条件的判断 1．“数列{a n }为等比数列”是“a n ＝3n (n ∈N *)”的( ) A ．充分不必要条件 B ．必要不充分条件 C ．充要条件 D ．既不充分也不必要条件 2．对于非零向量a ，b ，“a ＋b ＝0”是“a ∥b ”的( ) A ．充分不必要条件 B ．必要不充分条件 C ．充要条件 D ．既不充分也不必要条件 3．“实数a ＝0”是“直线x －2ay ＝1和2x －2ay ＝1平行”的 ( ) A ．充分不必要条件 B ．必要不充分条件 C ．充要条件 D ．既不充分也不必要条件 4．“sin A ＝12”是“A ＝π6 ”的__________条件． 题组2 充要条件的证明 5．函数y ＝(2－a )x (a <2且a ≠1)是增函数的充要条件是 ( ) A ．1< a <2 B.32 < a <2 C ．a <1 D ．a <0 6．求证：一次函数f (x )＝kx ＋b (k ≠0)是奇函数的充要条件是b ＝0. 题组3 利用充分、必要条件求参数的范围 7．一元二次方程ax 2＋2x ＋1＝0(a ≠0)有一个正根和一个负根的充分不必要条件是 ( ) A ．a <0 B ．a >0 C ．a <－1 D ．a <1 8．在平面直角坐标系xOy 中，直线x ＋(m ＋1)y ＝2－m 与直线mx ＋2y ＝－8互相垂直的充要条件是m ＝________． 9．已知M ＝{x |(x －a )2<1}，N ＝{x | x 2－5 x －24<0}，若N 是M 的必要条件，求a 的取值范围．
[能力提升综合练] 1．设甲、乙、丙是三个命题，如果甲是乙的必要条件，丙是乙的充分条件，但不是乙的必要条件，那么( ) A ．丙是甲的充分条件，但不是甲的必要条件 B ．丙是甲的必要条件，但不是甲的充分条件 C ．丙是甲的充要条件 D ．丙既不是甲的充分条件，也不是甲的必要条件 2．设0
课时达标训练（十二） [即时达标对点练] 题组1 函数的奇偶性 1．函数f(x)＝x 2＋3的奇偶性是( ) A ．奇函数 B ．偶函数 C ．既是奇函数又是偶函数 D ．既不是奇函数又不是偶函数 2．函数f(x)＝x 2(x ＜0)的奇偶性为( ) A ．奇函数 B ．偶函数 C ．既是奇函数又是偶函数 D ．非奇非偶函数 3．(2016·昆明高一检测)下列函数为奇函数的是( ) A ．y ＝－|x| B ．y ＝2－x C ．y ＝1x 3 D ．y ＝－x 2＋8 4．(2016·三明高一检测)函数f(x)＝x 2(x ＋1)x ＋1 ( ) A ．是奇函数 B ．是偶函数 C ．既是奇函数又是偶函数 D ．既不是奇函数又不是偶函数 5．判断下列函数的奇偶性． (1)f(x)＝??? 1，x 是有理数，－1，x 是无理数； (2)f(x)＝x 2＋|x ＋a|＋1. 题组2 奇函数、偶函数的图象 6．(2016·桂林高一检测)若函数f(x)满足 f (－x )f (x )＝1，则f(x)图象的对称轴是( ) A ．x 轴 B ．y 轴
C．直线y＝x D．不能确定 7．若函数y＝f(x)为奇函数，则下列坐标表示的点一定在函数f(x)的图象上的是( ) A．(a，－f(a)) B．(－a，－f(－a)) C．(－a，f(a)) D．(－a，－f(a)) 8．偶函数f(x)在区间[0，＋∞)上的图象如图，则函数f(x)的增区间为________． 题组3 函数奇偶性的应用 9．已知f(x)是定义在R上的奇函数，则f(0)的值为( ) A．－1 B．0 C．1 D．无法确定 10．函数f(x)＝x＋b为奇函数，则b应满足________． 11．(2016·吉林高一检测)函数f(x)＝x3＋ax，f(1)＝3，则f(－1)＝ ________. [能力提升综合练] 1．已知y＝f(x)，x∈(－a，a)，F(x)＝f(x)＋f(－x)，则F(x)是( ) A．奇函数 B．偶函数 C．既是奇函数又是偶函数 D．非奇非偶函数 2．(2016·福州高一检测)若函数f(x)＝ x (2x＋1)(x－a) 为奇函数，则a等于 ( ) A.1 2 B. 2 3 C. 3 4 D．1 3．已知f(x)＝ax2＋bx是定义在[a－1,2a]上的偶函数，那么a＋b的值是( ) A．－1 3 B. 1 3 C. 1 2 D．－ 1 2
Unit 3 课时达标训练(十二) Ⅰ.单词拼写 1．The machine will go into full p________ next month. 2．She felt she was making a terrible m________ of her life. 3．U________， I hurt my knee when I fell down on the ice. 4．The Maya built jungle pyramids to w________ their gods. 5．I can't stand my privacy being i________． 6．The factories have a________ the newest modern technology. Ⅱ.单句语法填空 1．His success has been a great honor ________ his hometown. 2．It is the custom in Britain for a bride ________ (throw) her bunch of flowers to the guests. 3．Mary is very untidy, and she always leaves her room in ________ mess. 4．An increase in the price of drugs has contributed ________ the rising cost of medical care. 5．It has been proved ________ eating vegetables in childhood helps to protect you against serious illnesses in later life. Ⅲ.选词填空 as well, have a good time, complain about, a bit of， dress up, in particular 1．We visited the Great Wall last summer and we ________________________ there. 2．She likes fruit and tomatoes ________________． 3．Little girls often ________ as angels on festivals. 4．Come early, and help to arrange the meeting ________． 5．Some students __________________ the difficult exam. 6．Do you usually do ____________ shopping on weekends? Ⅳ.句型转换 1．People believed that any village that did not give food would have bad luck. →________ ________ ________ ________ any village that did not give food would have bad luck. 2．That is your brother.He is speaking to the headmaster. →That is your brother ________ ________ __________ ________ the headmaster. 3．He can finish the work in a day and I can do it, too. →He can finish the work in a day and I can do it ________ ________．
课时达标训练(十九)牛顿第三定律 [基础练] 一、选择题 1．关于平衡力、作用力和反作用力，下列叙述正确的是() A．平衡力应是分别作用在两个不同物体上的力 B．平衡力可以是同一种性质的力，也可以是不同性质的力 C．作用力和反作用力可以不是一种性质的力 D．作用力施加之后才会产生反作用力，即反作用力总比作用力落后一些 2．一本书静止在水平桌面上，桌面对书的支持力的反作用力是() A．书对桌面的压力B．书对地球的吸引力 C．地球对书的吸引力D．地面对桌子的支持力 3．如图所示，马拖着一根质量为m的树干在粗糙的水平地面上做匀 加速直线运动，加速度大小为a，已知马对树干的拉力大小为F1，树干对 马的拉力大小为F2，则有() A．F1>F2B．F1＝F2 C．F1 温馨提示： 此套题为Word版，请按住Ctrl,滑动鼠标滚轴，调节合适的观看比例，答案解析附后。关闭Word文档返回原板块。 课时达标训练 【基础达标】 1.(2014·柳州高一检测)中秋节是中华民族的传统节日，而中秋吃月饼更是家庭团圆和美的重要体现。每年的中秋节前夕，月饼的价格往往要大幅上涨，而节日一过，再便宜的月饼也少有人要。“节日效应”的理论依据是( ) A．供求影响价格 B．节日需求旺盛是价格上涨的决定性因素 C．节日是影响价格的间接因素 D．价值决定价格 【解析】选A。引起节日期间价格上涨的主要原因在于居民需求量的扩大，这说明了供求影响价格，A项正确。B项说法是错误的，需求变化不是价格上涨的决定性因素；C项说法正确，但不是理论依据；D项与题意无关。2．(2014·青岛高一检测)漫画《为何贵》中,蔬菜价格之所以贵,是因为( ) A．使用价值决定价格 B．温室里生产的蔬菜耗费了更多的人类劳动 C．温室里生产的蔬菜营养价值要高于普通蔬菜 D．温室里生产的蔬菜耗费的个别劳动时间多 【解析】选B。本题考查学生运用所学知识认识漫画的能力。根据所学知识，商品的价值量由生产商品的社会必要劳动时间决定,温室种的蔬菜要耗费更多的人类劳动，故B项符合题意；A、D表述不正确；C表述不准确。 3.(2014·中山高一检测)国家统计局中山调查队近日公布的调查数据显示，受中山出现人感染H7N9禽流感影响，中山市从2014年2月10日至23日暂停活禽交易，全月鸡价格下降1.2%，鸭价格下降0.1%。上述材料表明( ) A．供给影响价格 B．价值决定价格 C．需求影响价格 D．社会必要劳动时间决定商品价值量 【解析】选C。受中山出现人感染H7N9禽流感影响，人们对鸡、鸭等肉类食品需求量下降，这是引起价格下降的主要原因，C项符合题意。其他三项均与题意无关。 4.(2014·青岛高一检测)读下表，假定其他条件不变，2015年某企业生产M商品的劳动生产率提高的比例和价值总量分别是( ) A．50% 40万B．50% 80万 C．100% 80万D．200% 160万 课时达标训练（十二） 一、选择题 1．下列幂函数中为偶函数的是( ) A ．y ＝x －1 B ．y ＝x 12 C ．y ＝x 3 D ．y ＝x 2 2．若f (x )＝ax 2＋bx ＋c (a ≠0)是偶函数，则g (x )＝ax 3＋bx 2＋cx 是( ) A ．奇函数 B ．偶函数 C ．非奇非偶函数 D ．既奇又偶函数 3．已知偶函数f (x )在区间[0，＋∞)上单调递增，则满足f (2x －1)＜f ????13的x 的取值范围 是( ) A.????13，23 B.??? ?13，23 C.????12，23 D.??? ?12，23 4．已知定义域为R 的函数f (x )在(8，＋∞)上为减函数，且函数y ＝f (x ＋8)为偶函数，则( ) A ．f (6)＞f (7) B ．f (6)＞f (9) C ．f (7)＞f (9) D ．f (7)＞f (10) 二、填空题 5．若点????2，12在幂函数y ＝f (x )的图像上，则f ??? ?14＝________. 6．已知f (x )是偶函数，g (x )是奇函数，且f (x )＋g (x )＝x 2＋x －2，则f (x )＝________，g (x )＝________. 7．如果y ＝????? 2x －3(x >0)，f (x )(x <0)是奇函数，则f (x )＝________. 8．已知函数y ＝f (x )是偶函数，y ＝g (x )是奇函数，它们的定义域为[－π，π]，且它们在 x ∈[0，π]上的图像如图所示，则不等式f (x )g (x ) ＜0的解集是________． 3.3工业区位因素与工业地域联系 一、选择题 读甲、乙两图，完成1?2题。 1. 工业生产在地域上比农业灵活得多是因为 A .工业生产一般不要求更多自然要素投入 B .工业产品最终要在市场上销售 C. 工业生产需要的条件完全不同于农业 D. 工业生产需要工人和技术人员 2. 有关工业投入的叙述，正确的是 A .与农业相比，工业对自然要素的投入更 多 B .工业投入的要素包括土地、水源、光热、劳 动力等 C. 不同的工业，其投入要素在总投入中所占 的比重有很大差别 D. 工业生产中，劳动力数量、体力的投入越 来越多 下图中数字表示不同工业部门的投入情况。 读图完成3?5题。 5. 在技术投入的推动下，工业部门④的发展趋势是 A .④-①―② B .④m C .④m D .④—①—③ 某跨国公司在中国某市投资建设自动化的食用油生产厂， 用国际 市场上的大豆为原料，生产食用油。 据此完成6?7题。 6. 跨国公司在中国投资建设食用油生产厂，主要是因为中国 A .消费市场广阔 B .劳动力资源丰富 C .技术力量雄厚 D .生产成本低廉 7. 该食用油生产厂应靠近 A .商贸中心 B .机场 C .火车站 D .港口 葡萄酒用新鲜葡萄或葡萄汁酿造而成。 近年来，我国葡萄酒产量 及消费量快速增长。据此完成8?9题。 &据图文材料分析，影响葡萄酒产业布局最主要的一组区位因素是 XK] 3. ①代表的工业部门属于 A .资金导向型 B .资源导向型 C .技术导向型 D .劳动导向型 4. 下列属工业部门④的是 A .制糖厂 B .家具厂 C .纺织厂 D .钢铁厂 so% 科技 40% 一① |< |i il ——1 -------------------------------------------------- 2…r ④ ②： : 厂」：?劳动力 40* 80 % 乙匸业生产的一砒桎图 Unit 4课时达标训练(十二) Ⅰ.单项填空 1．We put a piece of cloth across the window to ________ the sunlight. A．block up B．block out C．break out D．break up 2．She was always ________ with the children in the kindergarten, never hitting nor scolding them. A．careful B．calm C．strict D．gentle 3．After fighting with his illness many years, the patient ________ finally. A．pulled out B．pulled through C．pulled in D．pulled off 4．Nobody knew when the fire ________，but they knew it ________ the next morning. A．broke out; was put out B．was broken out; was put out C．broke out; put out D．was broken out; went out 5．All the visitors were told to ________ for those dangerous animals while visiting the zoo. A．watch out B．take care C．watch over D．be careful 6．—What do you think of French? —In my opinion, French is ________ English. A．a subject so difficult as B．as difficult a subject as C．as a subject difficult as D．difficult as a subject as 7．(陕西高考) The new station being built for the next Asian Games will be ________ the present one. A．as three times big as B．three times as big as C．as big as three times D．as big three times as 8．We should try our best to ________ those people after the disaster. A．break out B．cheer on C．break up D．cheer up 9．The motorcycle ran so fast that it crashed ________ the fence. A．with B．to C．onto D．into 10．________ you wouldn't like to go there, you can stay where you are. A．Although B．While C．As if D．Now that Ⅱ.阅读理解 A Copernicus (哥白尼) was born in Torun, Poland, on February 19, 1473. Little is known about his early life except that his father died when he was 10. An uncle adopted him, his two sisters, and his brother. The uncle saw to it that the two boys received a good education. Copernicus went to the University of Cracow. There he studied such subjects as Latin, mathematics, and astronomy. It was probably at that time that he changed his Polish name, Niklas Koppernigk, to the Latin form 课时达标训练（十一） [即时达标对点练] 题组1 由抛物线方程求焦点坐标和准线方程 1．对抛物线y ＝4x 2，下列描述正确的是( ) A ．开口向上，焦点为(0，1) B ．开口向上，焦点为????0，116 C ．开口向右，焦点为(1，0) D ．开口向右，焦点为????0，116 2．抛物线y ＝－x 2 8的准线方程是( ) A ．x ＝132 B ．y ＝2 C ．x ＝1 4 D ．y ＝4 3．抛物线y 2＝ax (a ≠0)的焦点到其准线的距离是( ) A.|a |4 B.|a |2 C ．|a | D ．－a 2 题组2 求抛物线的标准方程 4．焦点是F (0，5)的抛物线的标准方程是( ) A ．y 2＝20x B ．x 2＝20y C ．y 2＝120x D ．x 2＝120 y 5．顶点在原点，且过点(－4，4)的抛物线的标准方程是( ) A ．y 2＝－4x B ．x 2＝4y C ．y 2＝－4x 或x 2＝4y D ．y 2＝4x 或x 2＝－4y 题组3 抛物线定义的应用 6．设圆C 与圆x 2＋(y －3)2＝1外切，与直线y ＝0相切，则C 的圆心轨迹为( ) A ．抛物线 B ．双曲线 C ．椭圆 D ．圆 7．若抛物线y 2＝8x 上一点P 到其焦点F 的距离为9，则点P 的坐标为( ) A ．(7，±14) B ．(14，±14) C ．(7，±214) D ．(－7，±214) 8．若点P 是抛物线y 2＝2x 上的一个动点，求点P 到直线3x －4y ＋7 2＝0的距离与P 到 该抛物线的准线的距离之和的最小值． 题组4 抛物线方程的实际应用 9．某抛物线拱桥跨度是20米，拱桥高度是4米，在建桥时，每4米需用一根支柱支撑， Module 5课时达标训练(十三) Ⅰ.单项填空 1．There is good ________ that I'll have the essay finished by tomorrow. A．risk B．adventure C．opportunity D．chance 2．The governor (总督) had to ________ from office because of the scandal (丑闻)． A．resign B．remove C．retreat D．retire 3．You ________ 25% off the list, and when you sell to list prices, you will have 35% margin. A．purchased with B．bought with C．purchase by D．purchase with 4．He had much ________ of reading good novels, and his fluency in English gives him ________ the other candidates for the job. A．advantage; an advantage to B．benefit; an advantage over C．benefit; the benefit of D．advantage; a benefit to 5．The operations are ________ with different tools. A．preferred B．performed C．provided D．practiced 6．Can you ________ to offer me a job when I get there？You know, I have to work in order to pay for my schooling. A．apply B．arrange C．provide D．guarantee 7．—As the living standard is improving, more and more people choose to travel during their holidays. —No wonder the number of travel agencies is ________. A．on the decrease B．on the increase C．in the rise D．on the fall 8．The past five years have seen a ________ growth in economy in China. A．still B．steady C．specific D．secret 9．Many think that the rainbow is a ________ of good fortune because it connects heaven and earth. A．slogan B．brand课时达标训练 1.2.1
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