中考英語專題復習：條件狀語從句(已修改)
2025-06-19 14:01 本頁面
【正文】 條件狀語從句我們知道,引導條件狀語從句最常用的連詞是if, 由if引導的條件狀語從句表示在某種條件下某事很可能發(fā)生。如: If you ask him, he will help ,他會幫你的?！ f you fail in the exam, you will let him ,你會讓他失望的。unless = if not. Let39。s go out for a walk unless you are too tired. 如果你不累的話讓我們出去走走。 If you are not too tied, let39。s go out for a walk. 如果你不太累讓我們出去。學習條件狀語從句應注意以下幾點：（1）條件狀語從句中一般不使用將來時態(tài)，盡管主句使用將來時態(tài)，而主句用一般現(xiàn)在時或現(xiàn)在完成時?！纠縄 will e to see you if I have time.我有時間，我就來看你。If the rain stops, I shall go out for a walk.如果雨停了，我就出去散步。（2）注意條件狀語從句在虛擬語氣中的使用。【例】If I were to I should first of all get the experts to discuss the plan.如果我真的想做這事，我首先會找專家們討論我的計劃。(1)表示與現(xiàn)在的情況相反，或將來實現(xiàn)的可能性很小，if從句用過去式（動詞be多用were這個形式），主句用“would／should／could／might＋動詞原形”。例如： If places_______alike, there would be little need for geographers. A. being B. are C. be D. were 如果各地方都一樣，就不需要地理學家了。（, 答案是Ｄ）。 在表示將來情況的虛擬條件句中，還可以用“were＋to 不定式”或“should＋動詞原形”。 Jean doesn39。t want to work right away because she thinks that if she ____ a job, she probably wouldn39。t be able to see her friends very often. A) has to get B) were to get C) had got D) could have got 吉不想立刻工作，因為她想：如果她得到一份工作，她就不能經(jīng)常去看她的朋友了。(, B對） ( 2) 表示與過去的事實相反，從句用過去完成時，主句用“would／should／could／might＋have＋過去分詞”。如: If the policeman had arrived earlier, he would have seen the accident. 要是警察更早些到達，他就能見到事故了。 (3) 注意如果以上兩類條件句中含有助動詞、情態(tài)動詞，be或have, 則常常不用if，而用倒裝結構： ____ before we depart the day after tomorrow, we should have a wonderful dinner party. A) Had t
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