名词性从句——主语从句、宾语从句、表语从句、同位语从句档.docVIP

名词性从句—— 主语从句、宾语从句、表语从句、同位语从句 主语从句 一、 that从句做主语 1、that不能省略，常用it做形式主语 That the thief has entered his room is obvious. =It is obvious that the thief has entered the room. 2、it做形式主语的几种句型 1) It + be + adj. + that从句 It is important that we learn English well. 常用形容词：important, necessary, obvious, clear, likely, possible, certain, true 2) It + be + n. + that从句 It was a pity that you missed the lecture. 常用名词：common knowledge, a fact, a pity, a shame, a surprise, no wonder 3) It + be + 过去分词 + that从句 It is said that they have won the game. 常用过去分词：said, believed, reported, hoped, claimed, known, announced, suggested 此句型可转换成另一结构： 主语 + be + 过去分词 + to do / to have done It is said that they have won the game. = They are said to have won the game People say that he will go to America. It is said that he will go to America. = He is said to go to America. 4) It + vi. +that从句 It seems that something is wrong with the machine. 常用vi：happen, appear, seem, turn out 二、 wh-从句做主语 1、可用it做形式主语 Who will leave for Beijing hasn’t been decided. = It hasn’t been decided who will leave for Beijing. 2、主语从句只用whether, 不用if 3、主语从句谓语动词用单数 Whether he will join us is unknown. 宾语从句 一、 that从句做宾语 1、做动词宾语 I hear that they have gone to America. 2、形容词宾语 I am afraid that you are wrong. 常用形容词： sure, certain, happy, glad, afraid, aware, eager, anxious 3、复合宾语——用it做形式宾语，真正宾语that从句放句尾 We find it important that we learn English well. 常用it做形式宾语的动词：find, feel, think, believe, make, consider We find it important that we learn English well. We find (that) it is important that we learn English well. 4、用在双宾语动词后面 He has shown us that he is worthy of trust. Show sb that tell sb that 5、用it做形式宾语的固定结构 take it for granted that 认为……是理所当然的 I take it for granted that he should help me. see to it that 务必……；一定注意到 (=make sure that) Please see to it that you should close the door before you leave the room. owe it to sb that 将某事归功于某人 I owe it to my parents that I have succeeded. I owe my success to my parents. 6、th