【文章內(nèi)容簡介】 推測。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氣。通過句子意思，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，條件從句的謂語用過去式（be通常用were），主句謂語用“should （would, could, might）+動(dòng)詞原形” 與過去事實(shí)相反 若與過去事實(shí)相反，條件從句的謂語用過去完成時(shí)（had+過去分詞），主句謂語用“should （would, could, might）+have+過去分詞”與將來事實(shí)相反 若與將來事實(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(dòng)詞原形”：20． If I_______ one million dollars, I would give it to medical research. If I _______ you, I would give it to charity.A．will have, am B．would have, was C．had, were D．have, is【答案】C【解析】考察虛擬語氣。第一空，虛擬語氣，與現(xiàn)在相反，用過去時(shí)。第二空，虛擬語氣，與現(xiàn)在相反，用過去時(shí)，be動(dòng)詞用were。故選C21．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”。本題考查虛擬語氣，shouldn39。t have done本不該做……卻做了。根據(jù)句意，故選A。22．The workers insisted that they a free lunch every noon and the boss hadto do that.A．be given B．being given C．will be to give D．were given【答案】A【解析】句意：工人們堅(jiān)持要求他們每天中午都有免費(fèi)的午餐，老板必須這樣做?？疾樘摂M語氣。insist堅(jiān)持，要求，其后面的賓語從句要用虛擬語氣，跟虛擬式動(dòng)詞原形 或者“should + 動(dòng)詞原形” 。結(jié)合句意和語境可知選A。 23．Mr. White _____ at 8:30 for the meeting, but he didn39。t show up.A．should have arrived B．should arriveC．should have had arrived D．should be arriving【答案】A【解析】試題分析：句意：懷特先生本來應(yīng)該在8：30到會(huì)，但他卻沒有出現(xiàn)。should have done：本來應(yīng)該做某事而實(shí)際上沒做。故選A考點(diǎn)：情態(tài)動(dòng)詞24．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)將來的虛擬語氣。即“if+過去時(shí)，主語+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)在的虛擬過去式（be一般用were）should/would/could/might+do對(duì)過去的虛擬had+過去分詞should/would/could/might+have done對(duì)將來的虛擬過去式（be一般用were）should/would/could/might+doshould+動(dòng)詞原形were+to do25． What if I have to go there and know nothing about it? If I______ you, I would try to find some information about it on the Internet.A．a(chǎn)m B．was C．will be D．were【答案】D【解析】試題分析：句意：——倘若我必須去那兒而且對(duì)那里一無所知，該怎么辦？——如果我是你，我會(huì)在網(wǎng)上查找一些有關(guān)那里的信息。根據(jù) I would try to find可知主句用的是would+do,可知這是對(duì)現(xiàn)在事實(shí)的假設(shè)的虛擬語氣，因此If引導(dǎo)的條件狀語從句用一般過去時(shí)，根據(jù)虛擬語氣的用法be動(dòng)詞在If引導(dǎo)虛擬語氣中用were .故選 D?？键c(diǎn)：考查虛擬語氣的用法。26．Come and join us. I’m sorry, but I’m busy. If I ________ time, I would go.A．have B． hadC． will have D． have had【答案】B【解析】試題分析：句意:來加入我們吧!——抱歉，但是我正忙著呢。如果我有時(shí)間，我會(huì)去的。結(jié)合語境可知下文從句中是對(duì)現(xiàn)在情況的虛擬，故用一般過去時(shí)態(tài)，選B。考點(diǎn)：虛擬語氣點(diǎn)評(píng)：虛擬語氣是一種特殊的動(dòng)詞形式，用來表示說話人所說的話并不是事實(shí)，而是一種假設(shè)、愿望、懷疑或推測。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氣。通過句子意思，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，條件從句的謂語用過去式（be通常用were），主句謂語用“should （would, could, might）+動(dòng)詞原形” 與過去事實(shí)相反 若與過去事實(shí)相反，條件從句的謂語用過去完成時(shí)（had+過去分詞），主句謂語用“should （would, could, might）+have+過去分詞”與將來事實(shí)相反 若與將來事實(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(dòng)詞原形”：27．—Swimming in the river for teenagers is very dangerous.—So it is. If I ________ them, I ________ a shower at home.A．a(chǎn)m。 would take B．were。 will takeC．was。 would take D．were。 would take【答案】D【解析】試題分析：—在河里游泳對(duì)青少年是非常危險(xiǎn)的。—的確如此。如果我是他們，我會(huì)在家洗澡。if從句表假設(shè)，與現(xiàn)在事實(shí)相反，be動(dòng)詞則用were ，無論第幾人稱做主語。主句常用would 跟動(dòng)詞原形。故選D。考點(diǎn)：考查固定句式的用法。28．If I a bird, I _ fly in the blue sky.A．was。 would B．a(chǎn)m。 will C．will be。 will D．were。 would【答案】D【解析】試題分析：句意:如果我是一只鳥，我就能在藍(lán)色的天空中飛翔。根據(jù)句意可知，這里表示的是跟事實(shí)不符的情況，是不可能實(shí)現(xiàn)的事情，因此這里應(yīng)該用虛擬語氣。在if從句中用一般過去時(shí)，主句中用would+動(dòng)詞的原形。故選D?？键c(diǎn)：考查虛擬語氣。29． Had he studied harder, he_______ the exams.A．must have got through B．could get throughC．would get through D．would have