if條件句講解及練習

1、if條件句講解及練習從句主句與 現(xiàn) 在 事 實 相 反過去式（be用 were）would/should/could/might+ do與 過 去 事 實 相 反過去完成式would/should/could/might + have done與 將 來 事should (were to) + 動 詞原形would/should/could/might + do實 相 反If I were you, I would not let out the secret.如果我是你的話，我不會泄露這個 秘密的。If I knew his new address, I would tell you.如果我

2、知道他的新地址，我會告訴 你的。If he studied harder, he would pass the exa m.如果他學習再努力點的話，他會通 過考試的。If we had made fuller preparati on, we should have won the game.如果我們做了更充分的準備的話， 我們肯定就贏了這場比賽。If you had take n my advice, youwouldn' have been late for themeeti ng.如果你聽了我的建議，你開會就不 會遲到了。If she were to/should come, I

3、 would tell her the secret.萬一她來的話，我會告訴她這個秘 密。（2）省略if的虛擬條件句在含有were, had, 或者should 等 詞的虛擬條件句中，可以省略if,將were, had或者should這些助動詞放在 句首。如：Were I you, I would not let out the secret.Had we made fuller preparatio n, we should have won the game.Had you taken my advice, you wouldn' have been late for the me

4、eti ng.Should she come, I would tell her the secret.高一語法練習（四）預測、if條件句及 虛擬語氣一、單項選擇1. If Iwhere he lived, Ia n ote to him.A. know, would have sentB. had known, would have sentC. know, would sendD. kn ew, would have sent2. Mary is illtoday. If she, sheabsent from school.A. were not ill; would n' be

5、B. had bee n ill; would n'have bee nC. had bee n ill; should have bee nD. hadn 'been ill; could be3. He acted as if he everythi ng in the world.A. knewB. knowsC. has knownD. won't know4. If you had eno ugh mon ey, what ?A. will you buyB. would you buyC. would you have boughtD. will you h

6、ave bought5. If Mr. Young withjustice, hesuch a wrong thing.A. were treated; would n'doB. had been treated;wouldn 'have doneC. were treated; would n 'have doneD. had been treated;wouldn ' do6. Whatif therenolight duri ng the day?A. will happe n; wasB. would happe n; isC. happe ns; we

7、reD. would happe n; were7 The spokesman acted that way as if heany thi ng about theaccide nt but actually he did.A. doesn 'hearB. didn 'hearC. haven 'heardD. hadn 'heard.If itnot for the factthat you illsurely punish you.A. is; areC. were; arenow, I wouldB. were; wereD. was; were9. M

8、any Chin ese movie stars now have give n up their Chin ese nationality.If I were them, I that.A. shouldn 'doB. didn 'doC. hadn 'doneD. won 'do10. I want to get back by 5o'clock if.A. likelyB. canC. possibleD. probable11. It seems as if it already summer now but it is only Februar

9、y.A. isB. wasC. wereD. had bee n12. If He nry had not pulled hiscap low over his brow, heby thepolice.A. might be recog ni zedB. might have bee n recog ni zedC. would have recog ni zedD. was to have bee n recog ni zed13. There is a ring at the door. Thatbe the postman, I suppose.A. willB. wouldC. is

10、 going to D. was going to14. Look at the dark clouds therebe a stor m.A. willB. must have bee nC. is goi ng to D. would15. Why are you taking the pictures dow n?Ithe wall.A. pai ntB. have just pain tedC. am going to paintD. will have pain ted16. Can I stay at home tomorrow?Yes, you can if it.A. will

11、 snowB. is going to snowC. snowsD. sno wed17. I don' know if hethisafter noon. But if he, I willtell you.A. will come; will do;B. comes; will doC. will come; doesD. comes; does18.I thought I asked you tofix the radio.Oh, I "m sorry. Iitright awa y.A. am to doB. will doC. was about to doD. a

12、m going to do19. The WTO can 'live up to itsname it does not include afifth ofcountry that is home to one mankind.A. as long asB. whetherC. ifD. eve n though20. Ask him to ring me up if you him.A. seeB. sawC. would seeD. will seeI don' think heB. shouldD. shall21 .It ' so e.A. wo

13、uldC. is goi ng to22. If peoplepolluti ngthe air, animals and plants will die soon.A. don 'stopB. didn 'stopC. shall not stopD. haven 'stopped23. If youan in terest ingday out,the Scie nee Museu m.A. want; visit ingB. want; visitC. want to; visitD. wan ti ng; visit24. If the pure water i

14、s heatedto 100 eentigrade degrees, it boil.A. is going toB. willC. wouldD. is to25. Is a dieti onary available, so, where?A. ifB. if isC. and ifD. and if is二、翻譯句子26. 要是我哥哥在這兒，一切都沒 問題了。27.28. 他了。29. 子似的。30.如果下雨，莊稼就得救了。 如果你昨天早點來，你就碰見他那樣對待我，好像我是他兒他們談話的樣子好像是多年的 朋友一樣31. 我想今天下午不會下雨。32. 你下星期把車借給我行嗎？33. 發(fā)生的

15、事我誰也不告訴。34. 我們不準備在那里多呆。35. 我難受極了，我想我要生病了Keys:1 5 BAABB 610 DDCAC 1 15CBACC 120 CCBCA2125 CABBC26. If my brother were here, everythi ng would be all right.27. If it should rain, the crops would be saved.28. Ifyou had come earlieryesterday, you would (might) have met him.29. He treats meas if I were hisson.30. They are talk ing as if they had bee n frie