考研虛擬語氣

1、第四章虛擬語氣類 別用法例 句If 引 導 的 條 件 從 句與現(xiàn) 在事 實相 反從句動詞：過去式（be用were） 主句動詞：should/would/could/might+doIf he were here, he would help us.與過 去事 實相 反從句動詞：had+d one主句動詞：should/would/could/might+have+d oneIf I had bee n free,I would have visited you.與將 來事 實相 反從句動詞：過去式/should+動詞原形 /were+to do主句動詞：should/would/could/

2、might+ 動詞原形If it should rain tomorrow, we would not go camp ing.省 略 if 的 虛 擬 條 件 句將虛擬條件從句中的 were，had,should放到 主語之前，構(gòu)成主謂倒裝 Should he come ,tell him to ring me up. Were I you,I would not do it. Had I been free,I would have visited you.混 合 虛 擬 條 件 句虛擬與陳述的混合：各遵守各的規(guī)則 He could have passed the exam,but he

3、wasn tcareful eno ugh. You should have come earlier.The bus left a mome nt ago.含 蓄 虛 擬 條 件 句but fo葉名詞表示虛擬條件句子或主句中的謂語 動詞的形式視具體情 況而定。這是考查考 生應(yīng)變能力的最佳試 題。-But for your timely warni ng,wein to greattrouble.-You know were frie nds.A. would getB.must have gotC. would have gotD.can have gotwithout+名詞表示虛 擬條件W

4、ithout the air to hold some of the suns heat, the earth at ni ght would be freez ing cold.動詞不定式表示虛擬 條件It would be only partly right to follow in this way.如果用這種方式，僅僅對了 一半?，F(xiàn)在分詞表示虛擬條 件Having known in time ,we might have prevented the accide nt.要是及時得知的話， 我們也許能阻止這場事故。過去分詞表示虛擬條 件Give n more atte nti on, t

5、he tree could have grown better.如果多留心的話，這樹本來 可以長的更好。副詞 otherwise 表示 虛擬條件I was too busy at that time.Otherwise,I would have called you.我當時太忙，否則 我就給你打電話了。連詞but連接的句子 表示虛擬條件Hefatter but he eatstoo little .A. would becomeB. would have becomeC. must becomeD. must have become其 /、 它 狀 語 從 句as if/as though引導

6、的狀語從句中動詞用 did 或 had + done 或 would/could/might + do。 注意：as if/as though引導的狀語從句中也可 以用陳述語氣：當說話者認為所述的是真實的或極有可能發(fā) 生或存在的事實時： 與現(xiàn)在事實相反He talks as if he knew where she was. 與過去事實相反He talks about Rome as if he had bee n there before. 與將來事實相反He ope ned his mouth as if he would say somethi ng.in order that/so t

7、hat引導的狀語從句中動詞 用 can/could/may/ might/ would 等+doTurn on the light so that we can see it clearly.賓 語 從 句dema nd, suggest, order, i nsist 后接的從句中 動詞為should+doHe suggested that we not cha nge our mind.wish后的從句中分別用過去式，過去完成式 和should/would+do表示與現(xiàn)在，過去和將 來情況相反I wish I could be a pop sin ger. I wish I would h

8、ave gone to Sha nghai last mon th.主 語 從 句在 It is necessary / mportant / strange that It is suggested / demanded/ ordered / requested that 等從句中， 謂語動詞用should+doIt is stra nge that such a pers on should be our frien ds.其/、它It is time that 句型中動詞用過去式或 should+doIt shigh time that we left/should leave.句 型

9、中would rather所接的從句中動詞用過去式或 者過去元成式I would rather you stayed at home now.If only句型中動詞常用過去式或者過去元成 式，表示強烈的愿望If only our dream had come true!真題再現(xiàn)句子分析For example, they do not compe nsate for gross social in equality, and thus do not tell how able an underprivileged youngsters might have been had he grown

10、up under more favorable circumsta nces.句子分析倒裝結(jié)構(gòu) had he grown 相當于 if he had grown翻譯：例如，測試并不能彌補明顯的社會不公；因此，它們不能說明一個物質(zhì)條件差的年輕 人，如果在較好的環(huán)境中成長的話，會有多大才干。1) I wish我年輕的時候有你們這樣的機會).3) Would you like him to paint your door with yellow stars?I d rather he漆成藍色的，而且不帶任何裝飾).4) It s high time that 昔施解決交通堵塞的問題).5) We i

11、nsist that讓杰克立刻進醫(yī)院).6要是你當初聽我的話，你現(xiàn)在就不會陷入這樣的困境.7如果我的條件好一些，我就申請那份工作了8但愿此刻陽光燦爛.If I were you, I would not be so proud.9如果我是你，我不會如此自負。10沒有空氣和水，什么都不能存活虛擬語氣練習題 1. Mr Li required the computer equipme nt referredusedin every classroom.A. should beB. have to beC. to beD. to being2. Yang Liwei has won great ho

12、nour for our coun try.Who is Yang Liwei?What a questi on! It is surpris ingthe first spacema n in China.A. you didn t know our national herB. to you not to know himC. you should know nothing about D. you knew nothing about him3. What courses are you going to do n ext term?I don t know. But its about timeon something.A. I d decideB. I decidedC. I decideD. I m deciding4. One of the requirements for the fire is that the materialto its burningtemp