【正文】 we couldn’t have succeeded in the experiment. But for the rain, we would have finished the work. ④ 常見(jiàn)的幾種固定句式。從句中的動(dòng)詞形式一樣。 一堅(jiān)持 二命令 三建議 四要求 insist order, mand advise, suggest, propose demand , require, request, desire 注意：以上動(dòng)詞相應(yīng)的名詞構(gòu)成的名詞性從句包括主語(yǔ)從句，表語(yǔ)從句和同位語(yǔ)也要使用虛擬語(yǔ)氣。如 If only,insist,suggest及 It’s time/necessary/important that從句等等。 ’s (about/high) time +that should +V. 過(guò)去時(shí) 我們?cè)撊ニX(jué)了。即假設(shè)條件從句謂語(yǔ)動(dòng)詞發(fā)生的時(shí)間與主句所假設(shè)的謂語(yǔ)動(dòng)詞不一致。 * 近幾年各類考試中常見(jiàn)的試題類型： If the United States had built more homes for poor people in 1955, the housing problems now in some parts of this country______ so serious. A. wouldn’t be B. will not have been C. wouldn’t have been D. would have not been √ If you had followed my advice, you would be better now. If you had studied hard before, you would be a college student now, and you would graduate from a college in four years’ time. ② 假設(shè)條件虛擬倒裝。 If you _______ here five minutes earlier， you _______________ the bus . ，我就來(lái)幫你了 。句中有 without, or, otherwise , but for等詞隱含某種假設(shè)。 order, advice, suggestion, proposal, demand, request, desire 注意： insist 表示 “堅(jiān)持說(shuō)”時(shí) ,后面從句不用虛擬語(yǔ)氣 . 如 : She insisted that he had stolen her bike. Suggest 表示 “暗示” , “表明”時(shí) ,后面從句中不用虛擬 . 如 : Her pale face suggests that she is ill . 6. without 和 but for 構(gòu)成的虛擬。即從句中的動(dòng)詞 使用 should + 動(dòng)詞原形，或者將 should省略。 ★ If only I to my parents’ advice! A. listening B. listen C. am listening D. had l