2019-2020学年北师大版高中英语课件：主语从句(共29张PPT)

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+that从句 1) It is + n. +从句 　 It is a pity(遗憾)/ a fact/a surprise that… *_______________(很遗憾)we lose the match. *______________(这是事实)he cheated in the exam. It is a pity that It is a fact that 2) It is + adj. +从句 　 　 It is possible that... 　 It’s certain that… *_________________(很可能)she will come back tomorrow. It is possible that 3) It +不及物动词+从句 It happened that... 刚好…;碰巧… It occurred to me that… 我突然想起… *________________(刚好)I came into the office at that time. *____________________(我突然想起)I forget to send the le