高考英语语法——名词性从句（共23张PPT）

高考英语语法 名词性从句 什么是名词性从句？ 充当名词所能充当的句子成分的从句称之为名词性从句。 名词 主语 谓语 宾语 定语 状语 同位语 表语 补语 名词性 从句 表语 从句 同位语 从句 宾语 从句 主语 从句 引导词的用法 that 连词that无实义、只起到连接主从句的作用、不充当任何句子成分，引导宾语从句时，可以省略。 That he is respected by everyone is natural. The fact is that the train has left. I don't think (that) he will arrive on time. whether/if whether和if表示“是否”，不能省略，只起到连接主从句的作用，不充当任何句子成分。 whether可以引导所有的名词性从句；if只能引导宾语从句或不放在句首的主语从句。 I want to know whether (if) he will help us. Whether it rains tomorrow doesn't matter. (=It doesn't matter if it rains tomorrow.) The question is whether we can finish it on time. The problem whether we have enough money to carry out the project upsets us. 连接代词: who,whom,what,which,whose, how many/much,whatever,whichever,whoever 连接代词在从句中一般起到双重作用:连接主从句的作用、在从句中担当主语、宾语、表语和定语等句子成分。 Who will be elected as president of this state hasn't been decided. Whose duty it is today is none of your business. That is what I learnt from the magazine. Whatever you do will have an effect. Whoever attends the concert