20xx屆高考英語(人教版)一輪總復(fù)習(xí)學(xué)案：專題七-情態(tài)動(dòng)詞和虛擬語氣-【含解析】-在線瀏覽
2025-04-03 02:49本頁面
【正文】 uld/could/might＋動(dòng)詞原形與過去事實(shí)相反had＋過去分詞would/should/could/might＋have＋過去分詞與將來事實(shí)相反動(dòng)詞的過去式(be的過去式通常用were)，should do，were to＋動(dòng)詞原形would/should/could/might＋動(dòng)詞原形If I were you，I would go with him．如果我是你，我就和他一起去。If it snowed tomorrow，we would take photos．如果明天下雪，我們就照相。If I were in your position，I would do the same．→Were I in your position，I would do the same．假如我處在你的位置，我也會(huì)這樣干的。If it should rain tomorrow，we would not go climbing．→Should it rain tomorrow，we would not go climbing．如果明天下雨的話，我們就不去爬山了。If you had worked hard，you would pass the exam this time．(從句指過去，主句指現(xiàn)在)如果你之前努力學(xué)習(xí)的話，這次你就會(huì)通過考試了。But for your help，we couldn39。Without electricity，life would be quite different today．(介詞)如果沒有電，今天的生活就會(huì)完全不同。否則，我就參加運(yùn)動(dòng)會(huì)了。4．某些從句中虛擬語氣的用法(1)用于表示建議、愿望、命令等動(dòng)詞后的賓語從句中。賓語從句中的虛擬語氣結(jié)構(gòu)為“should＋動(dòng)詞原形”，should 可以省略。特別提示：當(dāng)suggest作“暗示，表明”，insist作“堅(jiān)持認(rèn)為，堅(jiān)持說”講時(shí)，從句要用陳述語氣。He insisted (that) he heard someone in the next room．他堅(jiān)持說他聽到隔壁屋里有人。對(duì)現(xiàn)在情況的假設(shè)：wish＋主語＋動(dòng)詞過去式(be動(dòng)詞通常用were)對(duì)過去情況的假設(shè)：wish＋主語＋had＋過去分詞對(duì)將來情況的假設(shè)：wish＋主語＋would/could/might＋動(dòng)詞原形I wish (that) I were a bird and could fly freely in the sky．我希望我是一只小鳥，能在天空自由飛翔。 advice!我多么希望我聽了父母的建議！I wish I could fly to the moon some day．如果有一天我能飛到月球上就好了。It is important that every member (should) know these rules．重要的是每個(gè)成員都應(yīng)該知道這些規(guī)則。(4)would rather后跟從句時(shí)用虛擬語氣，表示愿望，意為“寧愿；但愿”。d rather he focused more on its culture．喬治打算談?wù)撍麌业牡乩?，而我寧愿他更多地關(guān)注他國家的文化。此句型意為“(現(xiàn)在)該……”，用來表示建議。It is (high) time that we should start out．我們(早)該出發(fā)了。Look at the trouble we39。s advice!瞧瞧我們所處的困境，要是我們采納了老師的建議就好了！(7)as if，as though 引導(dǎo)的表語從句和方式狀語從句中常用虛擬語氣，與現(xiàn)在事實(shí)相反用一般過去時(shí)(be動(dòng)詞通常用were)；與過去事實(shí)相反用過去完成時(shí)；與將來事實(shí)相反，用would/could/might＋動(dòng)詞原形。(事實(shí)上不是)The girl is giving us a vivid description of the moon．It seems as if she had been to the moon many times．這個(gè)女孩對(duì)月球的描述非常逼真，就好像她去過月球很多次似的?！ ‰y點(diǎn)釋疑 難點(diǎn)一 情態(tài)動(dòng)詞的易混點(diǎn)1．can與be able to表示“經(jīng)過努力設(shè)法做成某事”時(shí)不用can，應(yīng)用be able to can表示“能力”時(shí)，側(cè)重于因有某種知識(shí)和技能而能辦到某事。2．表示推測(cè)的can39。t表示“不可能”，may not表示“可能不，或許不”。t比may not語氣強(qiáng)。t__ be the postman at the door．It39。clock now．解析：can39。3．can39。t，needn39。t指“無能力”：mustn39。t指“不必”：【典例】 用can39。t或needn39。t__ make any noise．解析：句意：里面在開會(huì)，你不許制造任何噪音。t。t__ make a living．解析：句意：他太小了不能維持生計(jì)。t。s weather report, it does not rain, so you __needn39。故應(yīng)填needn39。難點(diǎn)二 對(duì)現(xiàn)在/將來/過去的推測(cè) 情態(tài)動(dòng)詞可以用來對(duì)現(xiàn)在、將來和過去進(jìn)行推測(cè)，常用來表示推測(cè)的情態(tài)動(dòng)詞有can/could，may/might，must，ought to/should等。There must be something wrong．一定出了什么差錯(cuò)。 It might snow tomorrow or it might be merely cloudy．明天可能下雪，或者可能只是多云。It should be Mike who has taken away all the materials．He said he would．應(yīng)該是邁克拿走了所有的材料。2．情態(tài)動(dòng)詞＋be doing“must＋be doing”表示“準(zhǔn)是正在做……，一定正在做……”。 3．情態(tài)動(dòng)詞＋have done表示對(duì)過去發(fā)生的事情的推測(cè)。t/couldn39。(2)may/might have done意為“可能/也許做了……，”表示對(duì)已經(jīng)發(fā)生的事情把握較小的推測(cè)。 解題策略 情態(tài)動(dòng)詞和虛擬語氣解題“兩注意”注意一：若句中謂語動(dòng)詞為原形，在其前設(shè)純空格題時(shí)，注意考慮情態(tài)動(dòng)詞。注意二：一旦判斷所給動(dòng)詞在句中作謂語，就要考慮其時(shí)態(tài)、語態(tài)、語氣、主謂一致等，特別是注意虛擬語氣中的時(shí)態(tài)?！镜淅?】 —I __can39。re wele．解析：can39。故填can39?！镜淅?】 We took a taxi to the airport．Otherwise we __would have been__(be) late．解析：根據(jù)語境可知，后一句表示與過去事實(shí)相反的假設(shè)，其謂語應(yīng)用would have been。我們可以靈活多樣地表達(dá)建議，如You39。2．情態(tài)動(dòng)詞搭配錯(cuò)誤達(dá)標(biāo)檢測(cè) Ⅰ．單句語法填空1．(2020句意：吉姆說我們可以住在他的房子里，只要我們保持它干凈整潔。故填can。江蘇卷改編)If I hadn39。句意：如果我沒有面對(duì)那么多的障礙，我現(xiàn)在就不會(huì)在這里。故填would/could/might/should。s high time that he __did/should do__ (do) something instead of just talking．解析：考查固定句型It is high time that sb． did/should do sth．“到某人該做某事的時(shí)候了”。4．—Excuse me，do you mind if I open
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