专题11 名词性从句(学)
名词性从句是高考的常考点。名词性从句包括主语从句、宾语从句、同位语从句和表语从句。名词性从句在高考中的考查重点:1. that和what引导名词性从句的区别;2.名词从句的语序和时态;3. it作形式主语、形式宾语的几种情况;4.宾语从句的否定转移;5.whether和if的用法区别;6.what在名词性从句中的使用;7.doubt后的名词性从句的使用;8.Who / whoever, what / whatever等的用法区别;9.连接词that的省略;
学习时尤其要注意区分和归纳what/that/wh-ever/whether等的语义功能和语法功能。
【重点知识整合】
名词性从句包括主语从句、宾语从句、表语从句和同位语从句。引导名词性从句的关联词有:从属连词that,whether,if ,wh-连接代词和连接副词,关系代词what,whatever等。
一、that从句
1.that从句作主语时,常用it作形式主语,常见的句型有:
(1)It+be+形容词(obvious, true, natural, surpri sing, good, wonderful, funny, possible, likely, certain, pro bable, etc.)+that从句。It is probable that he has told her everything.他可能已经把所有事情都告诉她了。
【例】It is obvious to the students ______ they should get well prepared for their future.
A. as B. which C. whether D. that