第九讲　名词性从句

　　一、主语从句

　　引导词 连接词 (1)that引导的从句作主语时不在从句中充当任何成分只起连接作用无任何意义通常不能省去且常用it作形式主语。 ①That the college will take in more new students is true.＝It is true that the college will take in more new students.It suddenly occurred to him that he had made a serious mistake.

　　(2)whether引导的主语从句既可放在句首 ①It doesn’t matter whether you pay by cash or credit card in this store.

　　②Everyone in the village is very friendly.It doesn’t matter whether you have lived there for a short or a long time.

　　连接代词 who等有词义在从句中作主语、宾语、表语、定语等。 ①(2017·高考湖北卷)What was so impressive about Jasmine Westland’s victory was that she came first in the marathon bareWhen the new cinema will be open to the public hasn’t been made clear.

　　连接副词 when等有词义在从句中作状语。 ①Why he came late today has been clear now.Where the English evening will be held has not yet been announced.

　　it作形式主语的句型归纳 (1)It＋系动词＋形容词＋that从句(2)It＋be＋名词(短语)(a pity/a shame/no wonder等)＋that从句

　　(3)It＋be＋过去分词(said/told/reported等)＋that从句

　　(4)It＋不及物动词(seemr)＋that从句

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