譯林版六年級英語第七單元試卷及語法講解_4208

1、六年級英語練習（二）Name_小學英語六年級情態(tài)動詞用法歸納情態(tài)動詞有can (could), may (might), must, have to, shall (should, will (would), need(needed),等。 情態(tài)動詞無人稱和數(shù)的變化；不能單獨使用，必須與其后的動詞原形構成謂語一、can, could1) 表示能力（體力、知識、技能）。Can you lift this heavy box? （體力）Mary can speak three languages.（知識）Can you skate?（技能）此時可用 be able to 代替。Can 只有一般現(xiàn)在

2、時和一般過去式； 而 be able to 則有更多的時態(tài)。 I ll not be able to come this afternoon.當表示 “經過努力才得以做成功某事”時應用 be able to，不能用Can。如：He was able to go to the party yesterday evening in spite of the heavy rain.2) 表示請求和允許。-Can I go now?- Yes, you can. / No, you can此時可與may 互換。在疑問句中還可用 t.could,might 代替，不是過去式，只是語氣更委婉，不能用于肯定

3、句和答語中。- Could I come to see you tomorrow?- Yes, you can. ( No, I m afraid not. )3) 表示客觀可能性（客觀原因形成的能力）。They ve changed the timetable, so we can go by bus instead.This hall can hold 500 people at least.4) 表示推測（驚訝、懷疑、不相信的態(tài)度），用于疑問句、否定句和感嘆句中。Can this be true?This can t be done by him.How can this be true

4、?二、may, might1) 表示請求和允許。 might 比 may 語氣更委婉，而不是過去式。否定回答時可用 can t 或 mustnt，表示 “不可以，禁止 ”。-Might/ May I smoke in this room?- No, you mustn t.- May/Might I take this book out of the room?- Yes, you can. (No, you can t / mustn用 May I. ？征徇對方許可時比較正式和客氣，而用 t. )Can I. ？在口語中更常見。2）用于祈使句，表示祝愿。May you succeed!3)

5、表示推測、可能性（不用于疑問句）。might 不是過去式，它所表示的可能性比may 小。1 He may /might be very busy now.2 Your mother may /might not know the truth.三、must, have to1) 表示必須、必要。You must come in time.在回答引出的問句時， 如果是否定的， 不能用 mustnt（禁止，不準），而用 neednt, don t have to（不必） .- Must we hand in our exercise books today?- Yes, you must.- No,

6、 you don t have to / you needn t.2) must 是說話人的主觀看法，而 have to 則強調客觀需要。Must只有一般現(xiàn)在時，have to有更多的時態(tài)形式。1His play isn t interesting, I really must go now.2I had to work when I was your age.3) 表示推測、可能性（只用于肯定的陳述句）1 You re Tom s good friend, so you must know what he likes best.2 Your mother must be waiting fo

7、r you now.四、 need1) need 作情態(tài)動詞用時 , 常用于疑問句、 否定句。 在肯定句中一般用must, have to, ought to,should 代替。1 You needn t come so early.2. - Need I finish the work today?- Yes, you must. / No, you needn t.注意 :對 must 構成的一般疑問句作否定回答只能用needn't.實戰(zhàn)練習一英漢互譯1.節(jié)約能源_ 2. 浪費水 _3.砍伐樹木_ 4. 保護地球 _5.收集塑料瓶 _6.使用紙袋和玻璃杯 _7. make a p

8、oster_8.use too much plastic bags_9. reuse old textbooks_10. at the school gate_二、單項選擇。() .Look! There are too many _ in the river.A.fishB.plasticC. rubbishD.water() 2. We _ use too many plastic bags,A. shouldB.shouldn tC.canD.don t() 3. Trees help _ the air clean.A.keepingB. for keepC. keepD. keeps

9、() 4. Don t use _ plastic,Mum.A.too manyB too muchC. much tooD many too() 5. We can use water _things.A.to cleanB cleaningC. cleanD. cleans() 6. Coal is _ useful energy.A.anB aC. /D the() 7. There _ too much water on the farm.A. isn tB. aren tC. weren tD.wan t()8. Do you know the news? Yes,Mike _ me

10、 _ it yesterday.A.told, aboutB.tells, forC. says, aboutD.said ,about)9. There are a lot of oranges _ the trees.A.inB. atC. onD. of)10._ a nice poster.A.HowB what sC.whatD. how is) 11. _ comes from trees.A.CoalB woodC. waterD. Rubbish) 12. When is World Environment Day?It s _.ththndndC.in 22AprilD.on

11、 22April)13. _our classroom clean, we can t litter .A. To cleanB CleaningC. CleanD. Cleans)14. Reading in bed is_ for our eyes.A.goodB badC. usefulD.beautiful)15. We can _ after school.A.walk to homeB.go to homeC. walk homeD. went home三用括號中的詞的適當形式填空1. We should _(eat) fruit and vegetables every day.

12、2. Mr Green_(drink) too much yesterday.3._(not waste)water, please.4. He starts_(draw).5. There are three plastic _(bottle) on the table.6. The books are_ (use).They are good for your study.7. We use wood _(make)things8. They cut down too many _(tree).9. One day, Bobby _(throw) a banana skin on the

13、ground.10. Billy_(slip)on the banana skin and _(fall),then he went to hospital.四根據(jù)句意和首字母填空1.You should not waste paper. You should s_ paper.2.The tap is running. Don t wwater.3.You are so fat. You shouldn t eat too m_.4.W_comes from trees.5.Most of our energy c_ from c_ and oil.6.Please throw these

14、three plastic b_into the bin.7. Oh, what a day! It s r_ nowIt.often r_ in summer.五、搭配題。()1.Do you like playing football ？A. They are running.()2.Can you draw it?B. This is Helen speaking.()3.What are they doing?C. No. She's in the office.()4.Is Miss Li in the study?D. No, I can't.()5.Who'

15、;s that speaking?E. Yes, I do.()6.How can we keep the air clean?F. It s on 22nd April.()7.What should they not do?G.We can plant more trees.()8.Is threr too much oil on Earth?H.Yes, he does.()9.Does your brother live in the city?I.No,there isn t()10.When is Earth Day?J.They shoudntwaste water.六句型轉換1

16、. Su Hai watched TV at home on Sunday.( 對劃線部分提問 )What_Su Hai _ at home on Sunday?2.Miss Li sat at the back of the bus.(改成否定句 )Miss Li_ at the back of the bus.3.They had an English lesson now.( 用 now 改寫句子 )_ _ an English lesson now.4.It s rainy today.( 對劃線部分提問 )_ the_ like today?5. Sam goes to school

17、 on foot. ( 同義句 )Sam _ school.七、閱讀短文，判斷正 (T) 誤 (F) 。Mary is an English girl. She likes watching basketball matches, but she doesn t have mmoney to buy tickets（票）。 She has to watch the matches on TV at home when she has nohomework. She must（必須）go to school from Monday to Friday, so she misses a lot o

18、f interestingmatches. There will be a big basketball match in the afternoon next day. Mary wants to watch itvery much. But her father doesn（認t為think）it s goodBecause. it is Friday, Mary must havelessons.() 1. Mary comes from the US.() 2. She often watches the basketball matches on TV.() 3. Mary misses a lot of matches because she has not much money .() 4. She goes to school from Monday to Saturday .() 5. Her father doesn t think it s good to watch basketb