2017届高考英语一轮复习热点课件：第11节状语从句高效语法_高考复习指南

2017届高考英语一轮复习热点课件：第11节状语从句高效语法

　　他节省了一大笔钱，以便能买辆新车。(引导目的状语从句) 误：So that I could hardly stand, I was tired. (引导结果状语从句不能置于句首，可改为I was tired so that I could hardly stand. 我很累，几乎站不稳了。) 四、目的状语从句 1．引导目的状语从句的从属连词主要的有 in order that, so that, in case, for fear (that)等。 Speak clearly so that they may understand you. 讲清楚些，以便他们能理解你。 Shut the window for fear that it may rain. 把窗子关上以防下雨。 2．目的状语从句与状语短语的转换 (1)为了简洁起见，当目的状语从句的主语与主句的主语相同时，目的状语从句有时可用表目的的不定式短语替换。 He got up early so that he could catch the early bus.

　　He got up early so as to catch the early bus. 他起床很早以便赶上早班车。 He came in quietly in order that he shouldn't wake his wife.

　　He came in quietly in order not to wake his wife. 他轻轻进来，以免把他妻子吵醒。 (2)有时还可与表示目的的介词短语替换。 He left an hour early for fear he might miss the train.

　　He left an hour early for fear of missing the train. 他提前一小时离开，以免错过火车。 3．in case引导从句的区别 (1)in case既可引导目的状语从句，也可引导条件状语从句，主要视句意而定： In case he comes, let me know.(条件状语从句) 如果他来，告诉我一声。 Tell me in case you get into difficulty.(目的状语从句) 遇到困难请告诉我。 (2)in case引导目的状语从句，从句有时可用“should＋动词原形”这样的形式： Take your coat in case it rains (should rain)．带着雨衣以防下雨。五、条件状语从句 1．除基本的引导条件状语从句的从属连词外，还有动词尤其是其分词形式(如suppose, supposing, provided, providing等)和介词短语(如in case, on condition that等)也可用作连词表示条件。 I will come on condition (that) she is invited to. 如果邀请她来，那我就来。 He may go with us provided (providing) he arrives in time.