【正文】 將來事實(shí)相反，條件從句的謂語用過去式（be通常用were），主句謂語用“should （would, could, might）+動詞原形”：句意：如果我是你，我會學(xué)習(xí)更努力。結(jié)合語境可知本句表示的是對現(xiàn)在的虛擬，故從句中用過去時(shí)態(tài)，主句中用過去將來時(shí)態(tài)。選B?？键c(diǎn)：考查虛擬語氣24．If I ____ you, I ____ buy a bike for him.A．was, would B．was, could C．were, would D．were, could【答案】C【解析】試題分析：句意：如果我是你，我就給他買一輛自行車。虛擬語氣用來表示說話人的主觀愿望或假想，而不表示客觀存在的事實(shí)，所說的是一個(gè)條件，不一定是事實(shí)，或與事實(shí)相反。表示與現(xiàn)在事實(shí)相反，條件從句用一般過去時(shí)，be動詞習(xí)慣用were，主句用should、could、would + 原形動詞。故選C。考點(diǎn)：考查虛擬語氣。25． If his brother a millionaire（百萬富翁）, he39。d buy her sister the expensive car.A．was B．were C．is D．be【答案】B【解析】試題分析：句意：假如他哥哥是百萬富翁，他會為她妹妹買這輛昂貴的汽車。虛擬語氣的結(jié)構(gòu)為虛擬語氣用法歸納 虛擬語氣：表示所說的話不是事實(shí)，或不可能發(fā)生，只是說話人的一種說話人的主觀愿望、假設(shè)、猜測、建議、或推測。條件狀語從句動詞過去式（be動詞無論人稱和數(shù)都用were），主句Would/should/could/ Might+動詞原形。故選B?？键c(diǎn)：考查虛擬語氣。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，我會邀請他去看電影。go to see a movie去看電影；invite sb to do邀請某人做某事；在表達(dá)與現(xiàn)在事實(shí)相反的虛擬語氣中，Be用were,主句用would。所以選C。考點(diǎn)：考查虛擬語氣。27． 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，我肯定會幫助你的，但是我太忙了。對過去的虛擬If+主語+had +動詞過去分詞,主語+would / should / might / could have + 動詞過去分詞。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。28．If I you, I’d keep quiet and listen carefully in class.A．a(chǎn)m B．will be C．were【答案】C【解析】試題分析： 與現(xiàn)在事實(shí)相反：條件從句用動詞過去式，主句用would/could/should/might+動詞原形；與過去事實(shí)相反：條件從句用had done，主句用would/could/should/might+have done；與將來事實(shí)相反：條件從句用動詞過去式/should+動詞原形/were to do，主句用would/could/should/might+動詞原形。句意：如果我是你，我上課就會保持安靜，認(rèn)真聽課。故選C?？键c(diǎn)：考查虛擬語氣的用法。29．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+動詞的過去式（be動詞用were） ，主句為主語+should, would, could, might + 動詞原形。所以選B?？键c(diǎn)：考查虛擬語氣。30．If I ______ you, I ______invite him to go to see a movie.A．a(chǎn)m。would B．were。will C．were。would D．was。will 【答案】C【解析】試題分析：句意：如果我是你，我會邀請他去看電影。go to see a movie去看電影；invite sb to do邀請某人做某事；在表達(dá)與現(xiàn)在事實(shí)相反的虛擬語氣中，Be用were,主句用would。考點(diǎn)：考查虛擬語氣。