Should與Oughtto的講解和練習(xí)

1、Should 與 Ought toi.復(fù)習(xí)meat.Mr. White about the book1. Some people can live without2. May I use the phone please,3. Could you tell me something4. You must not smoke here.5. What flavorwouldyou like,chocolate or strawberry6. We should putrubbishinthe bin.7. She shouldn ' tdiscussit.8. Should wedisc

2、ussit now /Ought we to discuss itnow- Yes, weshould/ought to.- No, we shouldn ' t/oughtnot to.9. The students ought not to sleep in the class.10. Tom ought to hand inhis homework on time.II.二者區(qū)別:ShouldOught to意思表示主觀看法,有“勸告、建議” 的意思，即“按我的想法該如何” 強(qiáng)調(diào)主觀看法，語氣比較委婉.一些建議，勸說時，譯作“應(yīng)當(dāng)”比should 語氣強(qiáng)，更多反映之 觀情況,“有

3、義務(wù)”或“必要” fT 某事，有時帶有責(zé)備或督促的意味， 譯為“應(yīng)當(dāng)，應(yīng)該”.否定表示某動作不一定要做表示做某事f是錯誤的虛擬語態(tài)VX時態(tài)ShouldOught to白立旬sb. should do sth.sb. ought to do sth.否定句sb. should not do sth.sb. ought not to do sth.一般疑問句Should sb. do sth.Ought sb. to do sth.簡略回答Yes, sb. should do sth.No, sb. should not / shouldn ' t do sth.Yes, sb. ough

4、t to do sth.No, sb. ought not /oughtn ' t to do sth.should和ought to在用法上要注意以下 3點(diǎn):1 .沒有人稱和數(shù)的變化。2 .后面接動詞原形。3 .可用來構(gòu)成否定句、疑問句及簡明答語。ought to 是唯一一個可加 to的情態(tài)動詞！ought to具體用法：1 .（表示義務(wù)、責(zé)任等） 應(yīng)當(dāng)， 應(yīng) 該You ought to work harder than t hat.2 .（表示勸告、建議等）應(yīng)該，You don't look well. You ought t o go to see the doctor.

5、3 .（表示猜測、期望）總應(yīng)該，理應(yīng)Itoughttobea fineday tomorrow morning.4 .“oughtto +have +過去分詞”表示過去應(yīng)做某事而實(shí)際未做You ought to have told me that（but you didn't）.這時ought to和should可以互換使用。Should具體用法：1 .表義務(wù)意為“應(yīng)該”You should do what your parents tell you.He shouldn ' t stay up so late.2 .表溫和的建議或指正This nameis wrong; it

6、 should be spelled Symthe, not Smith.3 .表期待.意為“可能”That should be easy.She should be here in a minute.4 .可用于完成時，完成時表示過去應(yīng)該做而 未做的事情At the age of thirty-five I should have understood.5 .用于第一人稱疑問句詢問對方意愿，但與 其較委婉溫和Should I open the window6 .表驚訝等感情I ' m surprised that he should say so.How should I know7

7、 .表委婉語氣，常與say, think等動詞連I should say he is over thirty.I should think it is a good film.III. 練習(xí) 單項(xiàng)選擇1. We help the people in need.A. canB. ought to C. should D. could2. One cross the street against the red light.A. ought not B. ought to not C. shouldn t toD.oughtn t to3. I missed the train. You me t

8、hat the timetable had changed.A. should to tellB. should have told C. ought have to tell D. ought have told4. We throw the rubbishinto the bin.A. shouldB. ought toC. may D.would5. Parents raisetheir childrenuntil they are 18.A. should B. ought to C. may D. would6. They discussit now.A. ought to not

9、B. not ought to C.dontought to D.ought not to7. he his parents about this problemA. Should, listensB. Ought, listens to C. Should, listen toD. Ought, listen to8. He here on time.A. should came B. should come C. should comes D. should c oming9. You buy the ticket before getting on the train.A. ought

10、B. should C. mustn t D.can t10.To protect our eyes, we keep enough distance from books whenwe read them.A. shouldn t B.oughtnot C.ought not toD. ought to11. Tom saysorryto Tracy becausehe broke herbike.A. should B.should C. mustn tD. can t12. He saidsuch athing beallowed happen.A. oughtn tto B.might

11、 notC. maynot D. neednt13. - Ought we to clean the classroom now - Yes, we .A. oughtB.should C. mustD. can句型轉(zhuǎn)換a） We should take good care of the young tree. （ 改為一般疑問句 ） we good care of the young treesb） You ought to turn off the lights when you leavethe room. （ 改為一般疑問句 ） I off the lightswhen I leave

12、the roomc） You ought to put your bike under the tree. （ 改為否定句 ）You your bike under the tree.d） The child should drink some orange juice. （ 改為否定句 ） The child orange juice.e） They should arrive at the station before 7 o clock .（ 就 劃 線 部 分 提問） at the station根據(jù)要求改寫句子a） You should do your homework carefully. （用 ought to 改為同義句 ）b） Tom shouldlook after his littlesister.（ 改為一般疑問句 ）c） They oughtto help theirparentsdo thehousework.（ 改為 一 般 疑 問句）d）