【文章內(nèi)容簡(jiǎn)介】 則，可根據(jù)語(yǔ)境選擇任何時(shí)態(tài)；充當(dāng)從屬連詞，引導(dǎo)條件狀語(yǔ)從句時(shí)，詞義為“如果”，若主句中的謂語(yǔ)動(dòng)詞用一般將來(lái)時(shí)，則從句中的謂語(yǔ)動(dòng)詞通常用一般現(xiàn)在時(shí)表示將來(lái)。20．If I you, I the army.A．a(chǎn)m, would join B．were, would join C．a(chǎn)m, will join D．were, will join【答案】B【解析】試題分析：句意:如果我是你,故用過(guò)去時(shí)態(tài),.考點(diǎn)：if引導(dǎo)的條件狀語(yǔ)從句點(diǎn)評(píng)：虛擬語(yǔ)氣是一種特殊的動(dòng)詞形式，用來(lái)表示說(shuō)話人所說(shuō)的話并不是事實(shí)，而是一種假設(shè)、愿望、懷疑或推測(cè)。判斷是真實(shí)條件句還是非真實(shí)條件句。只有在非真實(shí)條件句中才使用虛擬語(yǔ)氣。通過(guò)句子意思，看假設(shè)的條件是否能夠?qū)崿F(xiàn)，能夠?qū)崿F(xiàn)是真實(shí)條件句，不能使用虛擬語(yǔ)氣；假設(shè)的條件不能實(shí)現(xiàn)則是非真實(shí)條件句。與現(xiàn)在事實(shí)相反 若與現(xiàn)在事實(shí)相反，條件從句的謂語(yǔ)用過(guò)去式（be通常用were），主句謂語(yǔ)用“should （would, could, might）+動(dòng)詞原形” 與過(guò)去事實(shí)相反 若與過(guò)去事實(shí)相反，條件從句的謂語(yǔ)用過(guò)去完成時(shí)（had+過(guò)去分詞），主句謂語(yǔ)用“should （would, could, might）+have+過(guò)去分詞”與將來(lái)事實(shí)相反 若與將來(lái)事實(shí)相反，條件從句的謂語(yǔ)用過(guò)去式（be通常用were），主句謂語(yǔ)用“should （would, could, might）+動(dòng)詞原形”。21． If I ____Alice, I _____them the truth.A. was , would tell B. were ,would tell C. am, will tell D．is , will tell【答案】B【解析】試題分析：本題的含義是如果我是你，我將告訴他們真相，本題if引導(dǎo)的是一個(gè)虛擬的條件句，在虛擬句中，be用were，主句通常用過(guò)去的一種，will應(yīng)該用would，故本題選B?？键c(diǎn)：if引導(dǎo)的虛擬條件句。點(diǎn)評(píng)：在英文中條件句有兩種，一種是真實(shí)的條件句，if后遇到將來(lái)時(shí)用一般現(xiàn)在時(shí)，一種是虛擬的條件句，if后用過(guò)去時(shí)，be用were，在英文的實(shí)際使用中應(yīng)該注意它們的區(qū)別。22．You should_______ watched TV. There is so much work to do,A．not have B．have not C．not D．not having【答案】A【解析】句意“你本不應(yīng)該看足球比賽，你有許多的工作要做”。本題考查虛擬語(yǔ)氣，shouldn39。t have done本不該做……卻做了。根據(jù)句意，故選A。23．If I not so busy ,I with you .A．was , would go B．were , would goC．was , should go D．were , will go【答案】B【解析】句意“如果我不忙，我就跟你去”。本題考查對(duì)將來(lái)的虛擬語(yǔ)氣。即“if+過(guò)去時(shí)，主語(yǔ)+should/would/could/might do”結(jié)構(gòu)。故選B。點(diǎn)睛：虛擬情況從句主句對(duì)現(xiàn)在的虛擬過(guò)去式（be一般用were）should/would/could/might+do對(duì)過(guò)去的虛擬had+過(guò)去分詞should/would/could/might+have done對(duì)將來(lái)的虛擬過(guò)去式（be一般用were）should/would/could/might+doshould+動(dòng)詞原形were+to do24．If I _______ you, I would say another student could do it better.A．was B．were C．were D．a(chǎn)re【答案】B【解析】【詳解】句意：如果我是你，我會(huì)說(shuō)另一個(gè)學(xué)生可以把它做得更好。考查虛擬語(yǔ)氣。根據(jù)句意可知“現(xiàn)在事實(shí)”相反，此句是虛擬語(yǔ)氣，be動(dòng)詞使用were；故選A。25．If I ________ invited tonight, I would go to the dinner party.A．was B．were C．a(chǎn)m D．is【答案】B【解析】試題分析：句意：如果我今晚受到邀請(qǐng)，我會(huì)去參加晚宴的。由整個(gè)題干可知，現(xiàn)實(shí)情況與事實(shí)相反，是非真實(shí)的情況，是虛擬語(yǔ)氣，虛擬語(yǔ)氣中be都用were,故選B?？键c(diǎn): 考查虛擬語(yǔ)氣的用法。26．If I you, I invite him to go to see a movie.A．a(chǎn)m, would B．were, willC．were, would D．was, will【答案】C【解析】試題分析：句意：句意：如果我是你，我會(huì)邀請(qǐng)他去看電影。go to see a movie去看電影；invite sb to do邀請(qǐng)某人做某事；在表達(dá)與現(xiàn)在事實(shí)相反的虛擬語(yǔ)氣中，Be用were,主句用would。所以選C?？键c(diǎn)：考查虛擬語(yǔ)氣。27．— 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(lái)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(yǔ)氣。表示與過(guò)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(yǔ)+ had +過(guò)去完成式動(dòng)詞+ ……主句：主語(yǔ)+ would （should, could, might） + have +過(guò)去完成式動(dòng)詞+……故選 D考點(diǎn)：考查虛擬語(yǔ)氣的用法。28．What_____you do if you had a million dollars ? A．would B．will C．did D．do【答案】A【解析】考查點(diǎn)：虛擬語(yǔ)氣。解題思路：根據(jù)句意:如果你有一百萬(wàn)你將會(huì)干什么？ “如果你有一百萬(wàn)”是對(duì)現(xiàn)在的一種假設(shè)，與現(xiàn)在的事實(shí)相反。表示與現(xiàn)在事實(shí)相反的虛擬語(yǔ)氣的結(jié)構(gòu)是：主句用should/would/could/might+動(dòng)詞原形，從句用一般過(guò)去時(shí)態(tài)。故選A。29．—I like drinking wine. But people who drink wine aren’t allowed to drive.—If I you, I would give up wine.A．were。 drinking B．a(chǎn)m。 drinkingC．were。 drink D．was。to drink【答案】A【解析】考查虛擬語(yǔ)氣和非謂語(yǔ)動(dòng)詞的用法。根據(jù)句意可知，該句使用了虛擬語(yǔ)氣，if引導(dǎo)的從句使用一般過(guò)去時(shí)，用were；give up后面接動(dòng)詞的現(xiàn)在分詞。故選A。30． Had he studied harder, he_______ the exams.A．must have got through B．could get throughC．would get through D．would have got through【答案】D【解析】試題分析：句意:如果他學(xué)習(xí)再努力一點(diǎn)，他就能通過(guò)考試了。must have got through 一定通過(guò)；could get through 可能通過(guò)；would get through 會(huì)通過(guò)；would have got thro