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8A Unit 2课课练

8A Unit 2课课练
8A Unit 2课课练

8A Unit 2

Welcome to the Unit

一、Eddie和Hobo心中的学校是什么样的?根据你对他们的了解,来填空吧!

Hobo wants to know _________ dogs don’t go to __________ while people must go. Eddie thinks dogs are __________ than people and they __________ go to school. But Hobo still wonders __________ a school is like. Eddie thinks it’s just _________ _________ TV. But there are __________ _________ in it. Do you think so?

二、根据句意填空

1. In England, we call it “autumn”, but in America, they call it “__________”.

2. In England, people go up and down by __________ in the tall building.

3. Do you know another way of saying “secondary school”? I know, it’s ______________.

4. What does “soccer” mean? It means __________.

5. Now, can you find the ____________ between British English and American English.

三、根据句意和所给单词填空

1. -- Sorry, I am late.

-- Why don’t you ___________ (get) up early?

2. Do you think dogs are ___________ (smart) than people?

3. Who is ___________ ( lazy), Hobo or Eddie?

4. My parents like ____________ (watch) TV in the evening.

5. We need ___________ (little) money and ___________ (few) people to do the work.

6.an you tell me any ____________ (different) between ___________ (Britain) English and ___________ (America) English?

7. -- What ___________ (be) your school like?

-- It ___________ (look) like a beautiful garden.

8. There are too many ____________ (advertisement) on TV.

9. Thank you for ____________ (tell) us your ideal school.

10. Maths ___________ (be) very important. We should work hard on it.

11. Why don’t you ____________ (go) to the playground.

12. The movie ____________ (be) on at the cinema next week.

13. Of all the things, the one on the left is ____________ (bad).

14. Jill isn’t as ____________ (tall) as Lucy.

15. I know they are trying their ___________ (good) in this matter.

四、选用be like, look like, would like, like 的适当形式填空

1. --What subject ___________ you ___________?

-- I ___________ English.

2. --What ___________ Yao Ming ___________?

-- He is tall and strong.

3. --What __________ you __________ to do on the coming holiday?

-- I ___________ to go to Korea for holiday.

4. --What __________ his daughter ___________? – She’s lovely and very clever.

5. --What ___________ the weather ___________ yesterday?

--It ___________ rainy.

Reading (1)

一、根据句中提示或题意写出单词的正确形式

1. I brush my teeth ____________ (two) a day.

2. My mum can cook t____________ (with a pleasant taste) meals.

3. Of all the s___________, I like English best.

4. These students are studying in a ___________ (mix) school now.

5. Don’t leave me at home by ___________ (me).

6. I a___________ her for her bravery.

7. If you want to be __________, you should cook _________ food and eat _________(health).

二、分门别类。阅读完课文,请把下列谈及的内容给John 和Nancy归类

1. a mixed school

2. go to school in a car

3. cook healthy and tasty meals

4. talk to each other

5. Home Economics

6. play softball

7. go to a bubby club 8. a reading week 9. go to shopping malls

10. talk to friends about books

John ____________________________ _____

Nancy _________________________________

三、经过本节课的学习,你能介绍一下John 和Nancy 所在的学校吗?

(A) John’s school:

John lives in _________. He is a ________ ________ student in a school called ________School. It is a _________ school. Boys and girls have lessons _________. John and his friends have many __________ at school. John’s favorite one is Home Economics because he can learn how to _________ and _________. He knew __________ about this _________ he came to this school. He even didn’t know how to _________ _________ for himself. But now you see he can cook _________ and __________ meals.

John’s school has a __________ _________ every year. They _________it very much. They read books from the school __________ or from their __________. They must tell their _________ what they are reading. Near the __________ of each class, they _________ about the books of their friends with their friends. They all think the reading class is too __________ because they want to read __________ the books of their friends __________ __________. (B) Nancy’s school:

Nancy is an __________ girl. She is in __________ __________ at Rocky Mountain _________ __________ in the city of ___________. She has a __________ __________ Jim. Jim is 17 __________ old. He had __________ lessons in school last year. Now, he can drive on his __________. He __________ Nancy _________ school every day. Nancy thinks it is _________ because it is ________ than __________ the bus.

Nancy likes ________ very much. She ________ it after school ________a week. She

________ lots of time _________. When _________ comes, she always goes to a “buddy ________”. _________ students tell new students about school _________ there. Nancy ________ it a lot. Her _________ is Julie. Julie is also Nancy’s _________ because she helps her with her ________ and often listens to her _________. ________ lunchtime, Nancy _________ her friends and they always have a great time ________ to each other. Sometimes, they go to ________ ________ after school.

Reading (2)

一、英汉互译

1.校园生活_______________________

2. 世界各地的学校 _________________

3. 一所混合型的学校 _______________

4. 我最喜爱的科目 _________________

5. 如何烧饭缝补 ___________________

6. 烧健康美味的饭菜 _______________

7. 带入 __________________ 8. 更少的时间 _______________________

9. 上驾驶课 _____________________

10. 看报纸和杂志 ____________________

11. 在…(方面)帮助… ______________

12. 在…玩得开心 ____________________

13. 一个亲密的朋友 __________________

14. 也 ___________________

二、选用上述短语的正确形式完成下列句子

1. Boys and girls have lessons together in a school. It’s __________________________.

2. The pretty girl is good at sing, and dancing _______________________.

3. Can I _____________________ my books and magazines from my home?

4. Bill often _____________ me ____________ my Maths.

5. Do you know Home Economics? It can tell you _______________________________.

6. During the summer holiday, we always ____________________________ traveling.

7. You can make lots of friends in _______________________________.

8.I have __________________. Her name is Susan.

三、单项选择:

( )1. Tom! Don’t play with your toy alone. You must learn to ________.

A. have fun

B. play

C. share

D. enjoy yourself ( ) 2. There’s ________ in the fridge.

A. many vegetables

B. few noodles

C. little paper

D. a little meat ( ) 3. I can even _______ in South China in winter.

A. eat ice-cream

B. being cold

C. to wear skirt

D. watch TV ( ) 4. The child felt happy _______ he could stay at home with his parents.

A. as

B. because of

C. because

D. but

( ) 5. Our teacher always helps __________ our study and life.

A. us to

B. we with

C. us for

D. us with ( ) 6. Miss Gao’s ______ sister works in No.1 Midd le School.

A. old

B. older

C. eld

D. elder

( ) 7. Students always have a good time _______ each other.

A. talk with

B. talking to

C. to talk

D. taking

( ) 8. I like the TV channel with funnier programmes but ________ advertisements.

A. few

B. fewer

C. little

D. less

( ) 9. The Chinese people are______ than you think.

A. polite

B. politer

C. more polite

D. very polite

( ) 10. How funny the weather is ! What about _____softball?

A. practice play

B. practise playing

C. practicing playing

D. practice playing the

Vocabulary

一. 用所给词的适当形式填空。

1. Tomorrow is my birthday. I will buy _____________ (me) a new dress tonight.

2. Please d on’t spend your time on these _____________(important) things. They are useless.

3. The shop is ___________(close) between 10:00 p.m. and 8:00 .a.m..

4.He spent three hours ____________(go) ____________(plant) trees with his friends.

5.How many _____________ are there in a basketball team?(play)

6.At the birthday party we will have a great time _____________(talk) to each other.

7.During our journey, it is often rainy and windy. It’s an _____________(pleasant) trip.

8.He spends _____________(much) time playing computer games than anyone else in his class.

9.It’s nice to see these ______________ (cheer) teenagers every day.

10.There are many ______________(different) between the two schools.

11.Next year Jim will become a student in a _____________(second) school.

12.In spring and summer, light colour is _____________ (popular) than dark colour.

13.Who is ______________(slim) girl in your class?

14.Some students think English is _____________(use) because they won’t go abroad.

15.I think he is _____________(health). He often goes the see the doctor.

16.It ____________ (take) me an hour _____________ (mend) this kite yesterday.

17.Uncle Wang enjoys ______________ (make) things_____________ (make ) them

____________ (fly )

18.You look tired; you'd better _____________ (not work ) .

19.Li Lei _____________ (invite ) us _____________(join ) his birthday party yesterday .

20.She does homework as _____________(careful) as Kate.

二. 单项选择

( ) 1.If you want a double room, you’ll have to pay _________$15.

A. another

B. other

C. more

D. each

( ) 2. My new glasses cost me __________ the last pair.

A, as much as three times B. three times more than

C. three times as many as

D. as much three times as

( ) 3. __________ French people like to drink wine.

A. The most

B. Most C .Mostly D. Most of

( ) 4. His father is a businessman, so he is _______ not at home on Sundays.

A. hardly

B. mostly

C. almost

D. most

( ) 5. I am ________ age ________ Robert.

A. the same; as

B. the same; with

C. as same; as

D. as same; with

( ) 6.“What about Tom?’’ “ He came home __________.”

A. safe

B. safely

C. safer

D. safety

( ) 7. Old English is quite different __________ modern English.

A. in

B. than

C. to

D. from

( ) 8. She always wears beautiful _________.

A. clothes

B. cloth

C. dress

D. clothing

( ) 9. The King had different ________ for every hour of day.

A. cloth

B. clothing

C. clothes

D. cloths

( ) 10. Simon scored__________ points in the exam.

A . most B. the most C. less D. the least

三. 单句改错

1. Put on more clothing or you will be ill. _______________

2. The number of the girls in Class One is more than that of Class Two. _______________

3. A few monkeys are playing on the tree. ______________

4. I have many homework to do toady. ______________

5. I bought an interested story-book yesterday. ______________

Grammar ( 1 )

一.根据句意及所给首字母填空

1. When he has lessons, he always writes down important things in his n_____________. 2.Kate’s and Jane’s skirts are a_____________.

3.Look at the t_____________ and find out when your train will leave.

4.He has ten books while I have five books. I have f___________ books than he.

5.Children in the countryside drink l____________ milk than children in cities.

6.Students in middle schools study m____________ subjects than students in primary schools. 7. Bill Gates has the m_____________ money in the world. I have the l____________ money in the world. I always have nothing with me.

8. He doesn’t work hard at all. He often scores the f____________ points and is the last one in his

class.

二. 用所给词的适当形式填空.

1. Some students think English is ____________ (important) because they won’t go abroad.

2. It’s _____________ ( bored) to talk to a man of few words.

3. We should put ____________ (use) things into the wastepaper basket.

4. An English-Chinese dictionary is very _____________ (use) in our English study.

5. Most of us don’t know this song because it’s _____________ (popular).

6. I think he is ______________ (health). He often goes to see the doctor.

7. This book is very ______________ (interest). This is the third time I read it.

8. During our journ ey, it is always sunny. It’s a _____________ (please) trip.

三.按要求改写句子

1. She likes Home Economics best. (改为同义句)

Home Economics is her _____________ _____________.

2. He likes PE very much. He likes Computer Studies better.(合并为一句)

He likes Computer Studies ______________ ______________ PE.

3. Geography is very interesting. History is very interesting, too.(合并为一句)

Geography is ______________ ______________ ______________ history.

4. PE is useful. Art is more useful. Science is more useful than Art.(合并一句)

Science is ___________ ___________ ___________ of the three subjects.

四..单项选择

( ) 1. It ________ us three hours to do the work yesterday.

A. takes

B. take

C. will take

D. took

( ) 2. I often go to school __________ about 7:50 every day.

A. at

B. on

C. for

D. in

( ) 3. Thank you for _________ me so much help.

A. give

B. to give

C. gives

D. giving

( ) 4. Lucy has two pens. One is blue, _________ is red.

A. other

B. another

C. the other

D. others

( ) 5. It’s a fine day. What about __________?

A. to go out for a walk

B. going out for a walk

C. going out for a walking

D. to go out for walking

( ) 6. It’s very far. Why _________ by bus?

A. not going

B. not go

C. don’t go

D. not to go

( ) 7. -- _________ talk about your study of English? -- Good idea!

A. What about

B. How about

C. Why not

D. Why don’t

( ) 8. – What do I have to do if I want to be thinner and healthier?

-- You have to eat ___________ food and take ___________ exercise.

A. fewer, more

B. less, more

C. more, less

D. little, much ( ) 9. Who is __________ reliable, Franklin or Alan?

A. more

B. the more

C. most

D. the most

( ) 10. Which part of the newspaper do you find _________ interesting?

A. very

B. more

C. most

D. the most

( ) 11. Is there anything interesting _________ the newspaper this evening?

A. in

B. on

C. at

D. for

( ) 12. We always _________ a lot of money __________ parties.

A. take; on

B. take; to

C. spend; on

D. spend; to

( ) 13. You and your brother are very much __________.

A. like

B. alike

C. likely

D. similarly

( ) 14. This visit _________ one of last time.

A. is different from

B. are different from

C. is different for

D. are different for

( ) 15. The student has made ________ mistake ________ last time.

A. same; from

B. the same; from

C. same; as

D. the same; as

Grammar ( 2 )

一.用括号所给词的正确形式完成下例句子

1.The ______________ (long)of summer holiday is nearly two months.

2. We have _____________(many) weeks off in the summertime than in the wintertime this term.

3. If you want to keep ______________ (health), you must do more sports.

4. Millie is a good student. She is in the_____________( nine ) Grade this term.

5. Red is ______________(popular ) than black.

6. Sandy is very thin and weak. She eats the _____________ (little) food in our class.

7. Did you have a ______________( wonder ) time at the party?.

8. My mother always cooks ______________ (taste) meals on Sunday.

9. This is a______________ (无用的) dictionary.

10. I study in an ______________ (理想的) school in Shanghai.

11. We are not interested in the _______________ (乏味的) film.

12. What do you ________________ (确实) want to do?

二. 用所给动词的适当形式完成下例句子

1. Tom ______________ (hurt) his leg yesterday.

2. Eddie is crazy about sports. He doesn’t spend much time______________ (learn).

3. Be quiet! The students ______________ (have) an English class.

4. Watching TV is better than______________ (do) housework.

5. My father______________(fly) to Beijing in two hours.

6. You’d better_____________(not go) out. I t’s raining outside.

7. This is a_______________(drive) lesson .

8.He told me_______________ (not talk) in class.

9. ______________(read) books is very interesting.

10. Does your father enjoy_______________ (mend) a car?

三.改写同义句

1.The black sweater cost Nancy 8 dollars.

Nancy _____________ 8 dollars _____________ the black sweater.

2. I like Maths better than English.

I _____________ Maths ______________ English.

3. I spent two years on this research.

It _____________ me two years _____________ finish this research.

4. “When will they finish their meeting?” She wanted to know.

She wanted to know ______________ their meeting _____________ ____________ over.

5. She did her best to study English well.

She ______________ her best to study English well.

四. 阅读理解

Bill and Fred are students, and they’re good friends. They don’t have much money, so when it is time for their holidays, Bill says, “ Let’s take our holidays in a trailer( 拖车), Fred. It’s cheaper than a hotel. I can borrow my father’s trailer.” Fre d is very happy, and so they begin their holidays.

They want to get up early to go fishing the next day, but they don’t have a clock.

“That’s all right, Bill.” Fred says. “I put these small pieces of bread on the roof of the trailer at night and they will wake us up in the morning.”

Bill is very surprised, but he doesn’t say a word. Fred is right. Early next morning, some small birds come down on the roof to eat the bread and they make a lot of noise. Bill and Fred get up when they hear the noise.

根据短文判断正误(正确标T,错误标F)

( ) 1. Bill and Fred take their holidays in a trailer.

( ) 2. The trailer is Fred’s father’s.

( ) 3. They have a clock.

( ) 4. They put some cakes on the roof the trailer.

( ) 5. They get up early when they hear the noise.

Integrated skills

一.根据句意及所给首字母填空

1.Workers in China have two days o___________ every week.

2.In s____________, the weather in Nanjing is very hot.

3.Everyone knows the d___________ between these two words.

4.We s____________ a lot of time doing our homework every night.

二.用所给词的适当形式填空

1.The number of the students in our school _____________ (be) over 1,500.

2. A great number of the students _____________ (want) to go to a better high school.

3.Women don’t like _____________ (wear) uniforms.

4.She spends ______________ (much) time doing her homework than her brother.

5.He can do the work better with _____________ (few) people and _____________ (little)

money.

6.Their school has a ____________ (read) week this term.

7.I think the film is _____________ (interesting) of all.

8. I don’t know how to look after ______________ (I).

9. Our pens are ______________ (like).

10. She did rather ______________ (badly) than Lucy in the exam.

三.阅读理解

Dream

“Dream may be more important than sleep. We all need to dream.” Some scientists say.

Dreams take up about one quarter of our sleeping time. People have a few dreams each night. Dreams are like short films. They are usually in color. Some dreams are like old films.

They come to us over and over again. That may be because the dreamer is worrying about

something. Dreaming may be a way of trying to find an answer.

Some people get new idea from their dreams. They may think about their work all day.

These ideas can carry over into dreams.

Sometimes we wake up with a good feeling from a dream. But we often don’t remember the dreams. Dreams can go away quickly form memory.

Too much dreaming can be harmful. The more we sleep, the longer we dream. The mind is hard at work when we dream. That is why we may have a long sleep and we still wake up tired.

( ) 1. Some scientists say __________may be less important than __________.

A. sleep, dream

B. sleep, think

C. dream, sleep

D. work, study

( ) 2. Dreams and films are usually __________.

A. very long

B. in color

C. about work

D. very sad

( ) 3. Why do some people often dream about their work?

A. Because they are tired in the day time.

B. Because they are interested in their work.

C. Because they may think about their work all day.

D. Because they too much work to do.

( ) 4. Why do we sometimes feel tired after a long sleep?

A. Because we are too tired in the day time.

B. Because we dream too much.

C. Because we can have a bad feeling from the dream.

D. The passage doesn’t tell us.

( ) 5. The story mainly (主要地) tells us _______________.

A. what dream is

B. people like to dream

C. dreams are like films.

D. we always remember dreams

Study skills

一.用所给词的适当形式填空:

1.The factory is about ten _____________(kilometer) away from here.

2.The boy _____________(have) more picture-books than the girl.

3.Her hair is longer than _____________(Joan).

4.Of these schools, our school has _____________(many) students.

5.Our school has _____________(few) weeks off than your school.

6.If it _____________(snow) tomorrow, we’ll make a snowman.

7.I often score _____________(high) marks in our grade.

8.He is always _____________(hard-working) student in his class.

9.The _____________(long) of our summer holiday is about eight weeks.

10._____________(Britain) students spend less time doing their homework than us.

二.完形填空

London is such a wonderful city. It is very large. The Thames River (泰晤士河) runs ___1___ the city from west to east. So the city has ___2___parts, the South and the North. In the North are important buildings, shops, big parks and interesting places.

The weather in London is good. In winter it is not very cold and in summer it is not very hot___3___ the city is near the sea. People ___4___that London is a foggy(多雾的) city and it often rains. It is true.

Last year, when I ___5___ in London, I met one of the thickest fogs in years. You could not ___6___ your hand in front of your face. Cars and buses moved along with their lights on. When evening fell, the weather ___7____ even worse. ___8____the buses and cars stopped. I had ___9___ important meeting on the other side of the town, but it was not easy to find a car. I had to arrive there___10____.

( ) 1. A. about B. through C. in D. along

( ) 2. A. two B. four C. five D. six

( ) 3. A. because B. or C. so D. but

( ) 4. A. speak B. tell C. say D. talk

( ) 5. A. be B. am C. was D. were

( ) 6. A. look B. look at C. see D. saw

( ) 7. A. turn B. become C. grow D. got

( ) 8. A. Each B. Every C. None D. All

( ) 9. A. a B. an C. the D. \

( ) 10. A. walk B. on foot C. by bus D. by car

Main task

一.根据句意和首字母填空:

1.Young people like p_____________ music while old people are interested in d_____________. 2.There is a tennis c_____________ on the playground.

3.Put a t_____________ in the box next to the ones you like.

4.What time does your school day f_____________ ?

5.There are some m_____________ in the zoo. They are very clever.

6.I listen to the n_____________ over the radio every day.

7.My father likes to play Chinese c_____________ in his free time.

8.B_____________ is a national game of the USA, played with a bat and ball, by two teams. 9.He has a large family to s_____________.

10.Chinese people are good at playing table t_____________.

二.阅读理解:

Mr. Baker worked in a small town. Two weeks ago his friends helped him to find work in New York. So he and his wife were going to a building in the big city. Mr. Baker wanted to live in a room on the first floor and he could go for a walk by the beautiful garden after supper. But his wife hoped to live on the second floor.

“There is enough sunlight, I think. And we can watch the flowers in the garden by the windows,” said the woman.

Mr. Baker thought she was right and agreed with her.

It was Saturday. All their friends came to help them. They were tired but Mrs. Baker got nice food for them already. They held a party. They ate and drank a lot. Then they sang and danced. It lasted a long time.

Suddenly the telephone rang. Mrs. Baker went to answer it. Then she said to her husband proudly (自豪地), “Luckily you’ve listened to me! The men downstairs complained on the

telephone that the noise we are making makes them not fall asleep.

( ) 1. Mr. and Mrs. Baker moved to the building in New York because _________

A. it’s a big city.

B. they liked to live there.

C. Mr. Baker found work there.

D. he lost his job in the town.

( ) 2. Mrs. Baker hoped to live on the second floor because _____________

A.it was dirty on the first floor.

B.she didn’t like walking after supper.

C.It has much noise(噪音) on the first floor.

D.She liked the sunlight and flowers.

( ) 3. Mrs. Baker got nice food ready because ________________

A.their friends helped her husband to find work here.

B.their friends helped them to move to the building.

C.she was a good cook.

D.it was her birthday that day.

( ) 4. That night the Bakers and their friends were all _____________

A. sorry

B. happy

C. unhappy

D. sad ( ) 5. The men downstairs couldn’t fall asleep(入睡) because _____________

A. they weren’t tired at all.

B. they didn’t feel well

C. they didn’t know what happed upstairs.

D. the Bakers and their friends made a lot of noise upstairs.

Checkout

一.用括号所给词的正确形式完成下例句子

1.The ___________(long)of summer holiday is nearly two months.

2. We have ______________ (many) weeks off in the summertime this term.

3. If you want to keep _____________ (health), you must do more sports.

4. Millie is a good student. She is in the___________ (nine) grade this term.

5. Red is ___________________ (popular) than black.

6. Sandy is very thin and weak. She eats the _____________ (little) food in our class.

7. A club is a_______________ (please) place to spend our free time.

8. My mother always cooks _______________ (taste) meals on Sunday.

9. This is a_______________ (无用的) dictionary.

10. I study in an ______________(理想的) school in Shanghai.

11. We are not interested in the ______________ (乏味的) film.

12. What do you _____________ (确实) want to do?

二. 用所给动词的适当形式完成下例句子

1. Tom ______________ (hurt) his leg yesterday.

2. Eddie is crazy about sports. He doesn’t spend much time______ (learn).

3. Be quiet! The students _____________ (have) an English class.

4. Watching TV is better than________________ (do) housework.

5. My father____________________ (fly) to Beijing in two hours.

6. You’d better_________________ (not go) out.

7. This is a_________________ (drive) lesson.

8. He told me________________ (not talk) in class 9.

9. ________________ (read) books is very interesting.

10. Does your father enjoy________________ (drive) a car?

三. 选择填空

( ) 1. What________ your school life_________ ?

A. does; like

B. do; like

C. is; like

D. is; likes

( ) 2. Millie has_________ than Kitty.

A. more egg

B. fewer carrots

C. least rice

D. most bananas

( ) 3. Simon scored__________ points in the exam.

A . most B. the most C. less D. the least

( ) 4. Do you and your brother_________ each other?

A. is like

B. be like

C. are like

D. look like

( ) 5. Tommy usually chats________-the phone_________ his friends.

A. with; on

B. on; at

C. at; on

D. on; with

( ) 6. The teacher will give us a talk on how________ English well.

A. learning

B. learn

C. to learn

D. learned

( ) 7. 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

( ) 8. This classroom is bigger than______________ .

A. any one

B. all these ones

C. any other one

D. all ones

( ) 9. One of my_________ is clean, but_________ one isn’t.

A. foot, other

B. feet; the other

C. foot; the other

D. feet; other

( ) 10. This kind of fruit____________ .

A. taste sweetly

B. looks well

C. sounds beautiful

D. tastes delicious

8AUnit 2单元测试

一、用所给词的适当形式填空:(10分)

1. In a (mix) school, boys and girls have lessons together.

2. Lin Tao goes to the country to see his grandparents ___________(two) a month.

3. Simon has (little) orange juice than Millie.

4. His grandfather is ill. He was even (ill) this morning.

5. The dishes in the restaurant are very (taste). We often go there.

6. The singer is not popular now and his songs are (popular).

7. I am old enough to look after (I). You needn’t worry about me.

8. Which subject is ___ (interesting), History, Geography or Science?

9. What’s the (long) of yo ur desk? It’s about one meter.

10. Please practice as (much) as you can.

二、单项选择:(10分)

( ) 1. I have some problems _________ my new school .

A. to

B. for

C. of

D. with

( ) 2.-- does Mary usually go to the bubby club? --Once a week.

A. How often

B. How long

C. How far

D. How much ( ) 3. Do you and your brother_________ each other?

A. is like

B. be like

C. are like

D. look like ( ) 4. ---Must I do it now? ---No, you ________.

A. won’t

B. needn’t

C. can’t

D. don’t

( ) 5. If it next Sunday, you still the Great Wall?

A. will rain; do; visit

B. will snow; will; visit

C. rains; do; visit

D. rains; will; visit ( ) 6. He always looks . Now he’s looking at his new drawing.

A. happy; happily

B. happy; happy

C. happily; happily

D.happily; happy ( ) 7. ---What’s your best friend like?--- .

A. He is fine. Thank you.

B. He is a doctor.

C. He likes watching TV.

D. He is helpful and generous.

( ) 8. Chinese students have weeks in the summertime than American students.

A. more; on

B. fewer; on

C. more; off

D. less; off

( ) 9. His uncle caught a bad cold. Now he is still .

A. in hospital

B. in the hospital

C. at hospital

D. at the hospital ( ) 10.Lucy’s sports shoes are yours.

A. like

B. alike

C. the same

D. different

三、用所给动词的适当形式填空:(10分)

1. As we all know, light __ (travel) faster than sound.

2. Our team ___________ (win) the basketball final yesterday.

3. Wang Nan spends 6 hours ___ (practice) __(play) table tennis every day.

4. It rained heavily yesterday, so my father __ (drive) me to school.

5. We always have a great time ___ (chat) with each other.

6. ___ (take) a bus is much faster than walking,

7. Quiet! The students (have) an English class.

8. Could you tell me how (get) to the hospital?

9. My mother asks us (not watch) too much TV.

10.Listen! Do you know what they (read).

四、句型转换:(10分)

1. My sweater is like Tom’s.(同义句)

My sweater and Tom’s ___________ ___________ ___________.

2. What’s the meaning of your words?(同义句)

What____________ your words_____________?

3. I’d like to learn more about your school life, too.(同义句)

I want to learn more about your school life .

4. Do it like this!(否定句)

it like this!

5. The nearest supermarket is 8 kilometres from here.(划线提问)

is the nearest supermarket from here?

五、完成句子:(15分)

1. 戴宗的鞋子和我的鞋子尺码一样大。

Dai Zong’s shoes are the mine.

2. 露西的校服与彼得的不同。

Lucy’s school uniform Peter’s.

3. 约翰比丹尼尔学的课程少,所以他的空闲时间比丹尼尔多。

John studies than Naniel, so he has time than Daniel.

4. 宋健有两个儿子,一个是医生,另一个是教师。

Song Jiang has two sons, ___ is a doctor, __ ___ is a teacher.

5. 我想学如何烧出美味的食物。

I want to learn nice food.

6. 燕青帮我了解梁山的一切。

Yan Qing helps me Liangsan Mountain.

7. 在阅读周学生们在课堂上禁止讲话。

Students talk during the week.

8. 长江比中国任何其他的河流都要长。

Chang Jiang is than in China.

9. 孩子们正在树下彼此交谈。

The children are _ with under the tree.

六、完形填空:(10分)

One day a rich man met Tom. The rich man asked,“I hear you are very clever

and 1 is difficult for you. Can you tell me why you are so clever?”Tom answered with

2 , “Oh, I am not clever. Instead, you are too foolish(愚蠢的).”The rich man became

3 .Tom said, “Sir, please

4 unhappy. If you don’t agree

5 what I said, now let me

6 you a very easy question: If you have a group of sheep, I send you

7 group. Then,

you say, how many groups of sheep do you have?”“Why! That’s the easiest question in the world. One and one is two. 8 knows that. I have two groups of sheep, of course.”Tom laughed and laughed and said, “You are quite 9 , sir. Two groups of sheep put together is still one group. That’s the 10 question in the world, isn’t it?

( )1. A. something B. nothing C. everything D. anything ( )2. A. smile B. smiles C. smiling D. a smile

( )3. A. happy B. sad C. unhappy D. sorry

( )4. A. don’t B. don’t be C. not be D. about

( )5. A. with B. of C. about D. to

( )6. A. say B. speak C. ask D. tell

( )7. A. other B. the other C. one D. another ( )8. A. People B. Anybody C. Somebody D. Nobody ( )9. A. right B. clever C. wrong D. difficult ( )10.A. more difficult B. easier C. most difficult D. easiest

七、阅读理解:(20分)(A)

Long, long ago there was a very foolish thief. Do you know what he did one day? When he wanted to steal(偷) the bell on his neighbour’s door, he walked up to the door, took hold of(抓住) the bell and pulled hard. The bell made a very loud noise. The thief was afraid and went home. Then he sat down to think, “I must do something about the noise,”he said. He thought and thought. At last he had an idea. “Ah, I’ll put some cotton in my ears. Then I won’t be able to hear the noise.” The next day he went to the door of his neighbour, and took hold of the bell. This time he pulled even harder. The bell rang loudly, but the thief did not hear anything. With another hard pull he got the bell out. Just then the neighbour came running out. “Steal my bell? I’ll teach you a lesson(教训),” the angry man shouted. And he hit the thief on the nose. The foolish thief did not know how the neighbour found out he was stealing the bell. “Why did he come out just then?”he wondered(感到疑惑).

( )1.The thief was trying to get .

A. his neighbour

B. his neighbour’s doorbell

C. some cotton

D. a door with a bell on it

( )2.The thief put some cotton in his ears. He thought it would be ________for him to steal the doorbell.

A. safe

B. difficult

C. dangerous

D. easy

( )3. The neighbour ran out probably(很可能) because .

A. he knew his doorbell was being stolen

B. he thought someone was eager(渴望)to visit him

C. he realized(意识到)something strange happened

D. Both B and C

( )4. The neighbour hit the thief to .

A. give him lessons

B. punish (惩罚) him for stealing

C. help him with the bell

D. be his teacher

( )5. Which of the following is TRUE?

A. The thief understood why he was hit on the nose.

B. The thief knew why the neighbour came out.

C. The thief thought the neighbour could not hear the bell.

D. The thief didn’t want to know why the neighbour ran out just at the time he stole the

doorbell.

( B )

The Chinese New Year is called the Spring Festival which is the biggest festival in China.

It usually comes in January or February. Where there are Chinese, there is the Spring Festival. Each Chinese year has a name. We may call it the year tiger, the year of pig or the year of snake.

And the year of 2003 is called the year of sheep. The year after it is the monkey year. People always spend a month before the festival in preparing (准备)for it. People are busy shopping and cleaning their houses. On the Eve(除夕夜) there is a big family dinner. All the family stay up late to welcome the New Year, watching the CCTV programs or playing Majiang. On the first day of the Chinese New Year, people put on their new clothes and go to visit their relatives(亲戚) and friends, saying “Happy New Year”, “Good luck” and some other greetings to each other. It often lasts to the Lantern Festival, which is also an important Chinese festival and people usually have sweet dumplings (元宵). People always have a very good time, especially children. Children can usually get some money for the new year from their parents and the elder relatives.

( )1. We call the Chinese New Year .

A. the biggest festival

B. the Lantern Festival

C. the Spring Festival

D. the year of snake ( )2. The year of 2004 is the year of .

A. tiger

B. pig

C. sheep

D. monkey

( )3. “All the family stay up late to welcome the New Year.” Here “stay up” means .

A. to go to sleep

B. not to go to bed

C. to stand up

D. to have a good rest ( )4. “Where there are Chinese, there is the Spring Festival” means that .

A. the Spring Festival is celebrated only by Chinese people in China

B. the Chinese people celebrate the Spring Festival, even when they are in foreign countries.

C. People celebrate the Spring Festival all over the world

D. People who can speak Chinese celebrate the Spring Festival in the world

( )5. What do people say when they meet on the Chinese New Year’s Day?

A. They say “Merry Christmas” and “Happy New Year”.

B. They say “Good luck” and “Good night ”to each other.

C. They say “Happy New Year” and “Good luck” only to their friends and relatives.

D. They say many greetings, such as “Good luck” to each other.

八、书面表达:(15分)

据提示写一篇80词左右的短文,题目为“My Ideal School”

学校大而且漂亮,校园里有许多树和花。早上8点上课,我们没有许多家庭作业,有许多时间进行课外活动……

Unit 2 答案

Welcome to the unit

一. 填空

1.why

2. school

3.smarter

4. needn’t

5. what

6. like watching

7.no advertisements

二. 根据句义天空

1.fall

2. lift

3. high school

4. football

5. differences

1.get

2. smarter

3. lazier

4. watching

5. less

6. differences British Amercian

7. is looks 8. advertisements 9. telling 10. is 11. go 12. will be 13. the worst

14. tall 15. best

四. 选用be like, look like, would like, like 的适当形式填空

1.do like like

2. does look like

3. would like like

4. is like

5. is like is

Reading (1)

一根据句中提示或提意写出单词的正确形式

1.twice

2. tasty

3. subjects

4. mixed

5. myself

6. admire

7. healthy healthy healthily

二.归类John: 1,3,4,5,8,10 Nancy: 2,6,7,9

三. 填空

1.London

2. Year 8

3. Woodland

4. mixed

5. subjects 5. cook

6. sew

7. nothing

8. before

9. do things 10. healthy tasty 11. reading week 12. like 13. library 14. homes 15. teacher 17. end 18. talk 19. short 20. all 21. as well 22. 14-year-old 23. 9th grade 24. High School 25. Denver 26. brother called 27. years 28. driving 29. car 30. takes 31. to 32. great 33, faster 34. taking 35. softball 36. plays 37. twice 38. spends 39. practicing 40. Monday 41. club 42. Older 43. life 44. enjoy 45. buddy 46. hero 47. homework 48. problems 49. Doing 50. meets 51. talking 52. shopping mall

Reading (2)

一. 英汉互译

1.school life

2. schools in the world

3. a mixed school

4. my favourite subjects

5. how to cook and sew

6. cook healthy and tasty meals

7. bring in

8. less time

9. have a driving lesson 10. read newspapers and magazines 11. help… with…12. have a great time doing sth 13. a close friend 14. as well

二. 选用上述短语的正确形式完成下列句子

1.a mixed school

2. as well

3. bring in

4. help with

5. my favourite subject

6. have a good time

7. schools in the world

8. a close friend

三. 单项选择

1---5 CDACD 6---10 DCBCC

Vocabulary

一.用所给词的适当形式填空.

1.myself 2. unimportant 3. closed 4. going 5. players 6. talking 7. unpleasant

8. more 9. cheerful 10. difference 11. secondary 12. more popular 13. the slimmest 14. useless 15. unhealthy 16. took to mend 17. making to make 18. not work

19. invited to join 20. carefully

二.单项选择.

1---5 ABDCA 6---10 BDACB

三.改错。

1.clothing---clothes 2. more--- bigger/ larger 3. on --- in

4. many--- much

5. interested--- interesting

Grammar ( 1 )

1. notebook

2. alike

3. timetable

4. fewer

5. less

6. more

7. most least

8. fewest

二.用所给词的适当形式填空.

1. unimportant

2. boring

3. useless

4. useful

5. unpopular

6. unhealthy

7. interesting

8. pleasant

三.按要求改写句子.

1. favourite subject

2. better than

3. as interesting as

4. the most useful

四.单项选择.

1---5 AADCB 6---10 BCBAD 11---15 ACBAD

Grammar ( 2 )

一.用括号所给词的正确形式完成下例句子。

1. length

2. more

3. healthy

4. ninth

5. more popular

6. least

7. wonderful 8. tasty 9. useless 10. ideal 11. boring 12. really

二. 用所给动词的适当形式完成下例句子.

1. hurt

2. learning

3. are having

4. doing

5. is flying

6. not go

7. driving 8. not to talk 9. Reading 10. mending

三.改写同义句

1. spent on/ doing

2. prefer to

3. took to

4. when would be

四. 阅读理解

TFFFT

Integrated skills

一.1.off 2.summer 3.differences 4.spend

二.1.is 2.want 3.wearing 4.more 5.fewer, less 6.reading

7.the most interesting 8. myself 9.alike 10.worse

三.1.A 2.B 3.C 4.B 5. A

Study skills:

一1) kilometers 2) has 3)Joan’s 4) the most 5) fewer

6) snows 7) the highest 8) the most hard-working 9) length 10) British

二1) B 2) A 3)A 4)C 5)C 6) C 7) D 8) D 9) B 10) B Main task:

一1) pop drama 2) court 3) tick 4) finish 5) monkeys

6) news 7) chess 8) Baseball 9) support 10) tennis

二1) C 2) D 3) C 4) B 5) D

Checkout

一.1.length 2.more 3.healthy 4.ninth 5.more popular 6.less

7.pleasant 8.tasty https://www.doczj.com/doc/139669575.html,eless 10.ideal 11.boring 12.really

二.1.hurt 2.learning 3.are having 4.doing 5.will fly 6.not go

7.driving 8.not to talk 9.reading 10.driving

三.1.C 2.B 3.B 4.D 5.D 6.C 7.A 8.C 9.B 10.D

8AUnit 2单元测试

一.用所给词的适当形式填空:

1. mixed

2.twice

3.less

4.worse

5.tasty

6.unpopular

7. myself

8. the most interesting

9. length 10.much

二.单项选择1---5 DADBD 6---10 ADCAA

三.用所给动词的适当形式填空

1.travels

2.won

3.playing

4.drove

5.chatting

6.Taking

7.are having

8.to get 9.not to watch 10. are reading

四.句型转换

1.are the same

2. do mean

3. as well

4.Don’t do

5. How far

五.完成句子

1.same size as

2. is different form

3. fewer subject, more time

4. one, the other

5. how to cook

6. to learn about

7. can’t in class reading

8. longer any other river

9. talking each other

六.完形填空

1---5 BDCBA 6---10 CDBCD

七.阅读理解A .1---5 BADBC B. 1---5 CDBCC

八.书面表达

My ideal school is very big and beautiful. There are many trees and flowers. We can read under the trees and play games near the flowers. Our class begins at 8.00 a. m. We don’t have much homework to do. We have much free time to have sports and join in the interest clubs. We have more computer lessons. We can go home at 4.00 p.m. We can watch TV in the evening. We have enough time to sleep. I hope I can have an ideal school.

二年级数学上册第八单元数学广角-搭配(一)教案第二课时

二年级数学上册第八单元数学广角-搭配(一)教案 金跃峰 第二课时 教学内容: 教材第98页的例题2及“练习二十四”第3、4题。 课时目标: 1.通过观察、猜测、操作等活动,找出最简单的事物的组合数。 2.经历探索简单事物组合规律的过程。 重点、难点: 1.探索简单事物的组合规律= 2.理解排列和组合的不同: 教学过程: (一)复习旧知,回顾方法 有3个数5、7、9,任意选取其中2个组成两位数,一共能组成几个? 问题:你都知道了什么? 追问:“其中2个”是什么意思?“求和”指的是什么?“得数有几种可能”是什么意思? 今天我们来学习不受位置影响的方式——‘组合”。(板书:组合) (二)自主合作.探究新知 1.三个数的组合:5、7、9 出示教材例题2。 有3个数5、7、9,任意选取其中2个求和,得数有几种? (1)要求:同桌两人互相合作,一人摆数卡,一人负责记录。比一比哪个小组得到的和最多,方法最好。教师巡视,参与学生活动。 (2)汇报自己组的方法和结果预设。 有两种组合方法:列表组合法和连线组合法。如果学生没有说出其中一种,那么老师可以说:老师这里有一种方法,你们想听一听吗?(师阐述另一种方法)你认为这种方法怎么样? (3)评议方法。 大家采用各种方法都得到了3种和。真了不起啊!你们觉得哪种方法最好?为什么?指名学生说。 2.比较“排列”与“组合”的不同。老师现在有一个疑问,摆数字卡片时用3个数字可以摆出6个两位数,求和时3个数却只能求出3种和,这是怎么回事?小结:摆数与顺序有关,摆数交换位置,就变成另一个数了,求和与顺序无关,位置换一下求和的还是这两个数,只能算一次。 (三)分层练习、巩固新知 1.打乒乓球。 刚才同学们在数字乐园里学得很认真,现在老师请同学们去活动乐园里走一走,看场乒乓球赛。看完乒乓球赛,老师想请同学们帮个忙。 (1)想一想。 每两个人打一场比赛,那么三个人至少要打几场呢?分别是谁与谁比的?(2)学生独立思考后全班交流。 小结:这个问题其实就是组合问题。 2.搭配衣服。

二年级上册数学教案-第八单元第2课时一共有多少天 北师大版 (1)

第2课时一共有多少天 教学内容 课本第80~81页内容。 教学分析 本节教材是在学生学习了2~6的乘法口诀的基础上进行学习的。教材通过“一共有多少天”这一情境,引导学生独立编制7的乘法口诀。在7的乘法口诀中,前6句口诀是学过的,只有后3句是新授内容。教学时,教师要先让学生看懂图意,再根据已有的经验,特别是利用已学过的乘法口诀来计算后3句的结果,培养学生灵活运用知识解决问题的能力。 教学目标 1.通过创设情境和学生已有的经验激发学生学习兴趣,自主编写7的乘法口诀。 2.会用乘法口诀计算7以内的乘法,解决一些简单的实际问题。 3.培养学生学习数学的兴趣,及自主探究、合作交流的能力。 重点难点 重点 自主编写7的乘法口诀。 难点 掌握7的乘法口诀并会运用7的乘法口诀进行乘法计算。 教具学具 课件、实物投影仪、情景图等。 教学过程 一、复习导入 1.全班熟记6的乘法口诀。 2.口算。 6×3=6×4=5×5=6×2=6×7= 4×8=5×9=7×5=3×9=4×7= 二、创设情境,引入新课 1.出示主题图通过对话引入新课。 师:从图中你们获得了哪些信息?1个星期有几天? 生:(1)再过2个星期就要开运动会;再过3个星期就是我的生日;再过9个星期就要放假了。 (2)1个星期有7天。 师:我们知道1个星期有7天,那2个星期一共有多少天?3个星期一共有多少天?4个星期、5个星期、6个星期、7个星期……你们能算出来吗?(揭示课题:一共有多少天) 2 几个星期123456789 共有几天71421 3 4.小组汇报(展示学生所填的表格)比一比谁写得好。请学生说一说:你是怎样算出来? (1个星期有7天,2个星期就有2个7,就是2×7=14……7个星期就有7个7,就是7×7=49。你是怎样算出49的?) 5.如果让你看着乘法算式,能编出口诀吗?打开书本第80页:编出7的乘法口诀。编出一句口诀后能写出另一个乘法算式吗?请把另一个算式写在书上。 6.学生独立编写口诀,然后在小组内交流。

第八单元第二课时导学案(20200627131641)

Period 2 Sectio n A 2d-3c 课时目标知识目标: 1. 熟练掌握以下词汇:add , sugar , fin ally , beef , cheese , popcor n , add …to ??,? put …in to, forget to do , how many/much 2. 熟练掌握以下句型 (1 ) How do you make …? (2) How much/man …do we need ? 技能目标:1,会用本节新词和短语,能听说读写;2能听懂,读懂描述程序的简短听力材料, 能就某个操作程序对话,初步书面编写这样的对话; 情感态度:通过实践活动,培养学生的实际操作能力,调动学生的情感态度、兴趣等非智力因素。 课前预习 1 ?介绍一下你给家人做的沙拉吧。 2. 将两茶匙蜜,一杯酸奶,一些苹果,一些香蕉放入碗内,进行搅拌。 _______ two teaspoons of , a cup of _____ , some apples , some bananas _____________ ____ a bo wl , and _____ it all 2)切好西红柿和牛肉,煮好面条,在面条里加入材料,再加上一些盐,就可以吃面条了。 First , the tomatoes and beef. Next , ____________ the noodles. Then __ the ingredients and some salt ― the no odles. Fin ally , eat the no odles n .搜集中外食谱,小组共享。

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第八单元用字母表示数 用字母表示数(2) 教学目标: 课本第102--102页。 教学目标: 1.让学生理解并学会用字母表示数,能用含有字母的式子表示数量关系或计算公式;会用数代替字母求出含有字母的式子的值;进一步掌握常见图形的面积、周长计算公式。 2.让学生经历把实际问题用含有字母的式子进行表达的过程,体会用字母表示数的简洁和便利,发展符号感。 教学重点: 理解用含有字母的式子表示数量关系。 教学难点: 把数代入含有字母的式子求值。 教学准备: 课件 教学过程: 一、揭示课题,认定目标 开门见山,导入课题。 今天这节课,我们学习用含有字母的式子表示稍复杂的数量关系和计算公式。 二、自主学习,建构模型(预设16分钟) 1.自学例题4。 (1)明确题目中图和表的意思。 (2)自学。 导学单(时间4分钟) 1.增加的三角形个数和共用小棒的根数有什么关系?有疑惑的可以先用小棒摆一摆,再填表。 2.如果增加a个三角形,共用多少根小棒怎么表示? 3.当a等于8时,共用多少根小棒?等于15呢? 导学要点: 增加几个三角形,共用小棒的根数就是3加几个2。

口答a等于8时,共用多少根小棒。 (3)全班交流。 分析学生出现的各种情况,进行适当评析。 2.自学例题5。 出示:教材例5情景图。 导入:你能用自己的语言说说图的意思吗? 导学单(时间4分钟) 1.根据情景图用式子表示水壶里还剩多少毫升橙汁。 2.同桌交流,说一说自己的想法,看看谁的式子更简捷。 3.看书本101页,自学当x等于250时,怎样算还剩多少毫升橙汁,注意写的格式。 点拨:1lOO-z-z-z这种算法是依次减去每个茶杯的毫升数,1100一3z的算法是先求出3个茶杯的总毫升数,然后从冷水壶中橙汁的总毫升数减去3个茶杯的总毫升数,求出冷水壶里剩下橙汁的毫升数。 比较:这两种算法,你认为哪种比较简单? 展示学生的作业,并让学生上台讲解应该怎样书写: 当x=250时, 1100—3x =1100—3×250 =1100—750 =350 答:冷水壶里还剩350毫升橙汁。 总结:如果一些题目中的条件是用字母来表示的,我们第一步要用含有字母的式子来表示要解决的问题,当告诉你字母的具体数值时,就按照一定的格式把数代入式子,计算出式子的数值,这时不必写单位名称。 (1.写含有字母的式子或公式。2.代入式子计算。) 3.尝试练习例6 导学单(时间3分钟) 1.先写出公式,再把数值代入公式计算。 2.对照书本第102页例6的解答,与书本不同在哪儿,进行改正。 三、组织练习,完善认知(预设15分钟) (一)适应练习

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第2课时比较几分之一的大小 ?教学内容 教科书P91例3及“做一做”第2题,完成教科书P94“练习二十”第1~3题。 ?教学目标 1.经历探索比较分子是1的分数的大小的过程,掌握比较方法,并能正确比较。 2.通过操作、观察、比较等活动,培养学生动手操作能力和自主获取知识的能力。 ?教学重点 会比较几分之一的大小。 ?教学难点 进一步理解分数的意义,掌握比较几分之一大小的方法。 ?教学准备 课件,一根绳子,长方形、正方形、圆形纸片各若干张。 ?教学过程 一、复习旧知识,导入课题 师:有一根绳子,如果把它平均分成2份,每份是它的几分之几?平均分成4份、8份,每份又是它的几分之几呢? 每说一次平均分的份数,教师就折一折绳子,让学生回答折后每份所代表的分数。 师:这些分数哪个大,哪个小呢? 师:今天我们就一起来研究分子为1的分数的大小比较。(板书课题:比较几分之一的大小)【设计意图】用现实情境复习分数的认识,吸引学生的注意,让学生体会其中蕴含的数学知识,激发学生的探索意识。 二、探索交流,解决问题 1.比较1 2 和 1 4 的大小。 (1)动手操作,找分数。 师:请同学们拿出准备好的两张正方形纸片,重合在一起比较一下,你发现了什么? 【学情预设】这两张正方形纸片的大小完全一样。 师:现在请你在一张纸上折出 1 2 ,并涂色表示。在另一张纸上折出它的 1 4 ,并涂色表示。 学生独立操作,全班交流。 (2)展示学生成果,观察、比较涂色部分。 师:同学们认真观察这两张正方形纸片的涂色部分,你发现了什么? (3)汇报交流:学生自由发表意见。 (4)教师小结:同样大小的正方形纸片,左边图形的涂色部分比右边图形的涂色部分大,所以 1 2 > 1 4 。 2.比较 1 4 和 1 6 的大小。 【教学提示】 可将学生回 答的分数板书下 来,作为后面的学 习素材。

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第2课时搭配(2) 【教学内容】 搭配(教材第102页及相关习题)。 【教学目标】 1.学生通过动手操作、观察分析,掌握寻找简单事件的组合数并用符号表示的方法;培养学生的观察、分析能力,养成有序、全面地思考问题的意识和习惯。 2.让学生经历从众多表示组合的方法中,体验数学方法的多样化和最优化。 3.体验生活中处处有数学知识,培养学数学、用数学的兴趣。 【重点难点】 有序地找出简单事件的排列数。 【情景导入】 1.(课件出示)同学们,元旦快要到了,小红代表我们学校去参加县里面举办的跳棋比赛。可是,小红遇到了麻烦事,为穿哪套衣服而烦恼,她左选右选,还是拿不定主意,同学们你能帮帮小红吗? 2.(屏幕显示:一件牛仔上衣、一件T恤;两条裙子、一条裤子)哪位同学能来介绍一下小红都有哪些上衣和下衣呢?(生答:2件上衣,3件下衣) 你会建议小红穿哪套衣服呢?(学生自由说,请学生说) 3.你们提到了这么多的穿法,同学们真是有心,如果一件上衣只配一件下

衣的话,一共有多少不同的搭配?(学生思考) 此时,不少同学心里已经有了想法,我们不妨以小组为单位讨论一下,都有怎样的搭配方法? 同时思考:怎样搭配才能做到不重复不遗漏? 4.小组讨论交流,教师巡视指导。 5.汇报。(找学生来回答他们的搭配过程) (1)先选上衣,一件上衣可以分别与三件不同的下衣搭配,就有三种不同的穿法,另一件上衣也可以分别与三件不同的下衣搭配,也有三种不同的穿法,有2个3种不同的穿法,一共有6种不同的穿法。 (2)先选下衣,一件下衣分别与两件上衣搭配,有2种不同的穿法,三件下衣就有3个2种不同的穿法,也就是6种不同穿法。 请同学们回顾刚才的搭配方法,思考:上衣的数量和下衣的数量与有多少种搭配之间有什么关系?(学生思考回答)2×3=6(种)。(板书)6.同学们真棒,刚才老师还给你们留了一个问题,我们在搭配的时候怎样搭配才能做到不重复不遗漏?(学生回答) 刚才我们通过小组讨论,观察得出来共有6种不同的搭配方法,现在请同学们把学具卡片拿出来,现在我们有一张图,在一幅图中怎样表示出不同的搭配呢?(用连线)想一想连线时应注意什么?这样做有什么好处呢?(学生回答完再课件演示)

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+ ________1 ________ ________ ________1- ________ - ________ ________ + - ________ 4. (3分) (2020三下·迁安期末) 在横线上填上>、<或=。 3.06________3.21 ________ 14平方米________ 140平方分米 二、判断题。 (共4题;共8分) 5. (2分) (2019三上·宜昌期末) 分母相同的分数,分子大的分数比较大。() 6. (2分)如图,阴影部分占整个长方形面积的. 7. (2分)五(2)班有男生25人,女生23人,男生人数占全班人数的。 8. (2分)两个分数的分母相同,分子大的分数比较大。 三、选择题。 (共4题;共8分) 9. (2分)(2020·南通) 设A= ,B= ,比较大小:A()B. A . = B . > C . < D . 无法确定 10. (2分)把7米长的绳子平均剪成8段,每段占全长的()。 A . 米

B . 米 C . D . 11. (2分)(2013·广州) 把一段木头截成两段,第一段长米,第二段占全长的,这两段木头哪一段比较长?() A . 第一段比第二段长 B . 第二段比第一段长 C . 两段相等 D . 无法确定 12. (2分)把“ 、和”,按从小到大的顺序排列起来,正确的是() A . B . C . D . 四、解答题。 (共3题;共15分) 13. (5分)有一种大豆,每1千克中大约含有淀粉300克、脂肪250克和蛋白质380克。这三种物质各占总重量的几分之几、几分之几和几分之几。 14. (5分)写出两个小于,而大于的真分数. 15. (5分)先约分,再比较每组分数的大小. 和

02第八单元 第2课时

第2课时 金属与氧气、酸的反应 一、金属与氧气反应 1.大多数金属都能够与____氧气__发生反应,但反应的__难易程度__和__剧烈程度__是不同的。如镁、铝在__常温__下就能与氧气反应。而铁、铜在__高温时能与氧气反应。金在高温时也__不能__与氧气反应。上述事实说明:__Mg 、Al__比较活泼,__Fe 、Cu__次之,__Au__最不活泼。 2.镁在空气中点燃,剧烈燃烧,发出__耀眼的白光__,生成__白色__固体,化学方程式为__2Mg +O 2===== 点燃__2MgO__。 3.铝在点燃时剧烈燃烧,发生反应的化学方程式为__4Al +3O 2=====点燃____2Al 2O 3__。但常温下,铝在空气中与__O 2__反应,其表面生成一层__致密的氧化铝薄膜__,从而__阻止__铝进一步被氧化,因此,铝具有很好的__抗腐蚀性能__。 4.铁在氧气中点燃时,剧烈燃烧、__火星四射__,生成__黑色__固体,化学方程式为__3Fe +2O 2=====点燃__Fe 3O 4。在干燥的空气中铁__不会__与氧气反应。 二、金属与盐酸、稀硫酸反应 5.金属与盐酸或稀硫酸能否反应可反映金属的活动性。 反应物 反应现象 化学方程式(以盐酸为 例) 盐酸 或稀 镁 剧烈反应,固体不断减 少,迅速产生大量气泡 __Mg +2HCl===MgCl 2+ H 2↑__

硫酸 锌 较剧烈反应,固体不断减 少,持续产生气泡 __Zn+2HCl===ZnCl2+ H2↑__ 铁 反应缓慢,有少量气泡产 生,溶液由无色变为浅绿 色 __Fe+2HCl===FeCl2+ H2↑__ 铜无明显现象 结论:金属活动性顺序:__Mg>Zn>Fe>Cu__。 一、金属与氧气反应 1.黄金是一种贵重金属,它不仅被视为美好和富有的象征,而且还以其特有的价值造福于人类。常言说:“真金不怕火炼”主要是指 ( ) A.熔点高B.延展性好 C.有金属光泽D.化学性质稳定 2.在氧气中燃烧,产生大量白烟的是( ) A.硫B.红磷C.铁丝D.氢气 3.下列物质在一定条件下能与氧气反应,且生成物为黑色固体的一组是 ( ) ①Mg②Al③Fe④Au⑤Cu A.①和③ B.只有③ C.③④⑤ D.③和⑤ 4.关于金属的化学性质,下列说法中正确的是 ( ) A.各种金属都能与氧气发生化学反应 B.在氧气中能燃烧的金属,在空气中也能燃烧

第八单元第二课时

第2课时:中学生的视力情况调查 学习目标: 1.经历设计调查方案和调查问卷的过程,发展收集数据的能力 2.能根据具体情境设计适当的抽样调查方案. 3.知道用抽样调查的方法获取数据时,选取的样本必须具有代表性和广泛性. 4.体会统计在生活中的应用,发展应用数学的信心和能力. 探索活动: 问题一:通过调查中学生的视力的情况,收集有关数据,并进行整理分析数据,可以提出保护视力的建议,想一想如何收集数据?怎样设计调查问卷? 问题二:某品牌的洗衣机生产厂家为了了解顾客对该品牌洗衣机的满意程度,在洗衣机的使用说明手册中附上了一份意见表。表上有这样一段文字: 如果您对本产品不满意,请在下表中填上 “不满意”,然后将此表寄回本厂服务部。本厂通讯地址为××省××市××路××号,邮编:××××××。 该厂服务部根据回信统计出对产品不满意的顾客数,再从厂家销售部获知该品牌洗衣机的销售量,利用公式“顾客满意率=%100?-销售量 不满意顾客数 销售量”计算出该品牌洗衣 机的顾客满意率。 请分析该厂设计的调查统计方案是否恰当。如果你认为不恰当,请在评价之后对该方案作出你认为比较恰当的调整方案(只要比原方案更合理一点即可),以便能得到更真实的数据—满意率,从而为厂家对“是否需要加快对产品进行升级换代”作出决策提供依据。 问题三:为了对本地区的视力情况进行调查,小明、小丽、小凯等5名同学决定采用抽样调查的方式进行调查。下面是他们的调查结果,请对他们的调查结果进行分析。 小明的调查结果: 小丽的调查结果: 小凯调查的结果: 小伟查阅了该地区每个中学医务室检查学生的视力资料,并计算出该地区中学生的视力不良率为65%。 小萍随机调查了该地区的10%的中学生的视力,并计算出他们的视力不良率为68%。 1、小明、小丽、小凯等5名同学分别采用哪种方式收集数据的? 2、小明、小丽、小凯调查所得到的视力不良率各是多少? 3、请你对上述5名同学的调查进行评价分析,并与同学交流. 4、要了解该地区中学生的视力情况,你认为应该怎样收集数据?说明你的理由并与同伴交流. 问题四:报纸上刊登了一则新闻,标题为“保健食品合格率为75%”,请据此回答下列问题:这则新闻能否说明市面上所有 食品中恰好有25%为不合格产品? 变式题1:你认为“问题四:”中这则消息来源于普查,还是抽样调查? 变式题2:在“问题四:”中,如果在这次质量监督检查中各项指标均合格的商品有45种,你能算出共有多少种保健食品受检查了吗? 课堂练习: 1、判断下面抽样选取的样本是否合适,并说明理由. (1)、为了了解某地区老年人的健康状况,调查了医院里100名老年病人1年的生病次数. (2)、某方便面厂家为了了解其产品的质量情况,每隔100包抽取1包检查. (3)、为了了解某城市空气污染情况,随机该城市某月的空气污染情况. 2、以下是小华设计的中学生视力情况调查问卷的一部分,你认为这样的设计合理吗?为什么? 1、为了解我校九年级800名学生期中数学考试情况,从中抽取了200名学生的数学成绩进行统计.下列判断:①这种调查方式是抽样调查;②800名学生是总体;③每名学生的数学成绩 第八章 统计的简单应用

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