【正文】
句構(gòu)成是if+主語+過去式(系動(dòng)詞be多用were),主句是主語+would/should/could+動(dòng)詞原形。故選C??键c(diǎn): 考查虛擬語氣的用法。24. If it had been possible, I would have helped him, but I ______ too busy.A.had been B.would be C.were D.was【答案】D【解析】試題分析:句意:如果可能的話,我肯定會(huì)幫助你的,但是我太忙了。對過去的虛擬If+主語+had +動(dòng)詞過去分詞,主語+would / should / might / could have + 動(dòng)詞過去分詞。所以描述的是過去的事情,故我過去很忙應(yīng)該用過去時(shí)??键c(diǎn):考查虛擬語氣及時(shí)態(tài)的用法。25.Sir, you should__________ at the red light.But you didn’t.A.stop B.have stopped C.not have stopped D.stopped【答案】B【解析】試題分析:句意:先生,你應(yīng)該在紅燈亮?xí)r停下來。但你沒有。這里用虛擬語氣,用情態(tài)動(dòng)詞should + have + 過去分詞,這是對過去的一種虛擬。所以選B。考點(diǎn):考查虛擬語氣。26.I’m not free today, If I ____ time, I ____ and help him with you.A.have, will go B.had, would go C.have, would go D.had, will go【答案】B【解析】試題分析:句意:我今天沒空,如果我有時(shí)間,我就和你一起去幫助他。在含有虛擬條件句的復(fù)合句中,主句和從句的謂語都要用虛擬語氣。表示與現(xiàn)在事實(shí)相反的假設(shè),虛擬條件句為If+主語+動(dòng)詞的過去式(be動(dòng)詞用were) ,主句為主語+should, would, could, might + 動(dòng)詞原形。所以選B??键c(diǎn):考查虛擬語氣。27. – What would you do if you ______ a car accident? – I will call the police. A.met B.meet C.were meeting 【答案】A【解析】試題分析: 虛擬語氣中,表示與現(xiàn)在事實(shí)相反的句子,if從句用一般過去時(shí),主句用would/should/might+動(dòng)詞原形。句意:如果你遇到一場交通事故你該怎么做?我將打電話報(bào)警。故選A??键c(diǎn):考查虛擬語氣的用法。28.If I _______ you, I would give some flowers to her.A.a(chǎn)m B.a(chǎn)re C.was D.were【答案】D【解析】試題分析:句意:如果我是你,我會(huì)送她一些花。這是由if引導(dǎo)的一個(gè)虛擬語氣句子,表示與現(xiàn)在事實(shí)相反的情況,其句型為“ if+ 主語 + 動(dòng)詞的過去式( be 動(dòng)詞用 were ),主語 +would / could / might / should + 動(dòng)詞原形”。故選D。考點(diǎn):考查虛擬語氣的用法。29.— Come and join us, Betty!— I’m afraid I can’t. I’m too busy now. If I ______ time, I would certainly go.A.have B.have hadC.will have D.had【答案】D【解析】試題分析:句意:貝蒂,來加入我們吧!恐怕我不能。我現(xiàn)在太忙。如果我有時(shí)間,我當(dāng)然會(huì)去了。分析:考查if引導(dǎo)的虛擬語氣。表示與過去事實(shí)相反的虛擬條件句。其句子結(jié)構(gòu)為:從句:If + 主語+ had +過去完成式動(dòng)詞+ ……主句:主語+ would (should, could, might) + have +過去完成式動(dòng)詞+……故選 D考點(diǎn):考查虛擬語氣的用法。30. If I ______ you, I _____the job.A.was。 will take B.was。 would take C.were。 would take D.were。 will take【答案】 C【解析】試題分析:句意:如果我是你,我就要這份工作。If引導(dǎo)的句子是愿望時(shí),用過去式表示,而且系動(dòng)詞用were,主句用would加原形。故選C。 考點(diǎn): 考查虛擬語氣的用法。