高考英语语法一轮复习——主语从句（共34张PPT）

Her job is teaching. What she does is teaching. 在句中充当主语的从句叫做主语从句。 定义 1That he will come is certain. 2Whether it will please them is not easy to say. 3What seems easy to some people seems difficult to others. 4Which side will win is not clear. 5Why he did it remains a mystery. 6When they will start is not known yet. 7How he became a great scientist is known to us all. 8Who will take part in the meeting has not been decided. 9Whoever breaks the law will be punished. 10Where she is from is unknown. 连接词 that ①无实际意义 ②只起连接作用 是否 连接词如何选用？ 1.从句中什么成分都不缺，用 2.从句中需要表“是否”的词，用 3.其他，缺什么补什么 连接词的选用 that whether 如缺“哪一个”的意思，用 which 主语从句的连接词： 连接词 that , whether 连接代词 who(ever), whom(ever), which(ever), what(ever)等 连接副词 where ,when ,why ,how That he will refuse this piece of advice is impossible. It is impossible that he will refuse this piece of advice. It作形式主语 it It作形式主语的四种常用句型 It +be+名词+that从句 It +be+形容词+that从句 It +不及物动词+that从句 It +be+动词的过去分词+tha