高中英语语法——主语从句课件（57张）

Noun clauses as the subject 什么是主语？ 主语：是一个句子说明的人或事物,即叙述的主题，一般位于______ 。 句首 I like English. The train left. Jim is good at playing the piano. To see is to believe. Smoking is bad for health. What he has said is true. 找出主语 (名词）      （不定式） （动名词） (从句） 主语从句 (Subject Clause) 在主从复合句中充当主语的从句就是主语从句, 它是名词性从句之一。引导主语从句的连接词有： 从属连词that, whether；连接代词who, what和which；连接副词when, where, how和why。 考纲专题解读 1.了解名词性从句的基本用法，掌握名词性从句的引导词及引导词在名词性从句中的作用，辨析that与what,if与whether等引导词的用法。 2.明确it作形式主语和形式宾语、代替主语从句及宾语从句的用法，及其与强调句的区别。 3.区分that引导的同位语从句及定语从句。 他通过了考试让老师很高兴。 He passed the exam. It made the teacher happy. He passed the exam made the teacher happy. That he passed the exam made the teacher happy. 理解主语从句 他何时要来还不清楚。 When will he come? It is not clear. When will he come is not clear. When he will come is not clear. 理解主语从句 That he will succeed is certain. Whether he will come makes no difference. What we need is more time. 找出主语从句 That he will come is certain. Whether he will come is uncertain. 引导词