高考英语语法名词性从句之主语从句

高考英语语法名词性从句之主语从句 （一） 观察一：观察以下句子，判断是那一类的名词性从句，并指出该名词性从句的引导词。 （1） Who he is doesn’t concern me. （2） What he said is unbelievable. （3） Where we shall do the test is still under discussion. （4） When we will hold the sports meet is still unknown. （5） How he got in touch with Tom is not clear. （6） That light travels faster than sound is known to us all. （7） Whether she likes the present is not clear to me. 以上句子为主语从句，引导词有 who, what, where ,when ,why ,how ,whether ,that, whatever, whoever, however. 第6句改编. It is known to us all that light travels faster than sound. 第7句改编. it is not clear to me Whether/if she likes the present. 此时whether和if均可。 Whether和if 引导主语从句有什么区别？ 引导主语从句表是否只能用whether，转换为it做形式主语时候whether和if都可以。 What 和that 引导主语从句有什么区别？ what引导主语从句，what在主语从句中做成份，如句子（2），that在主语从句中不做成份，如句子（6）但是此时that也不能省略。 例如：That he suddenly fell ill last week made us surprised. 例如1.What you need is more practice . 例如2.That he needed a lot of money made us surprised. Whoever breaks the law should be published . W