主语从句精品PPT学习教案

1、会计学1主语从句精品主语从句精品The subject clause 第1页/共17页第2页/共17页Find the subject clauses in the following sentences, and think about what are the connectors (连接词连接词) .第3页/共17页第4页/共17页What 与与 that 引导主语从句引导主语从句规则：规则：what引导名词性从句时在从句引导名词性从句时在从句中中充当句子成分充当句子成分,如主语如主语,宾语宾语,表语表语,而而that则不然则不然,它在句子中它在句子中只起连接作用只起连接作用，但不能，但

2、不能省略省略。(1) _you said yesterday is right.(2) _she is still alive is a great news to all of us.WhatThat主语从句的规则：第5页/共17页1. That he will refuse this piece of advice is impossible._ _2.That they should like each other is natural. _*it为形式主语为形式主语It is natural that they should like each other.It is impossib

3、le that he will refuse this piece of advice.第6页/共17页这样就构成了下面一些常用句型这样就构成了下面一些常用句型: 1) It is + n. +从句从句 It is a pity/shame that. 遗憾的是遗憾的是 It is a surprise that令人惊奇的是令人惊奇的是 It is a fact that 是事实是事实 It is common knowledge that 是常识是常识*_(很遗憾很遗憾)we lost the match.*_(这是事实这是事实)he cheated in the exam.It is a

4、pity thatIt is a fact that第7页/共17页2) It is + adj. +从句从句 Its certain that 肯定肯定 It is possible that. 很可能很可能 It is unlikely that. 不可能不可能 It is obvious that 很明显很明显 It is necessary important natural. that*_(很可能很可能)she will come back tomorrow.*_(很明显很明显)this measure is effective.+(should) +doIt is possible

5、 thatIt is obvious that第8页/共17页.It was not clear whether the solid shape would last or not. Subject ClauseSubjectFormed SubjectWhether the solid shape would last or not was not clear.Real引导引导主语从句在主语从句在句首只能用句首只能用whether,有有it作形式主语的作形式主语的whether/if都可以都可以.Conclusion:ifIf第9页/共17页正：When he will come is a

6、puzzle.规则四:含主语从句的主句谓语动词多用 单数第三人称形式。第10页/共17页规则一:主语从句一律用陈述语序， 即主语在前，谓语在后。正：When he will come is not known.2.Where will he go is not yet fixed.正：Where he will go is not yet fixed.3. Why was Lily late is not important.正：Why Lily was late is not important.第11页/共17页规则四:what 引导的主语从句，可根据 表语决定主句动词的单复数形式。 （w

7、hat 用法较特殊，需要记住。）第12页/共17页第13页/共17页1. 用用 that / whether / if/ /where / how / when /why / who /what/which/ how much / etc. 来连接主语从句来连接主语从句.Summary:Subject Clause3.引导主语从句在引导主语从句在句首只能用句首只能用whether,有有it作形式主语的作形式主语的whether/if都可以都可以.2.That 在主语从句中在主语从句中不能省略不能省略.4.有时为了使句子有时为了使句子结构平衡结构平衡, 避免避免 “头重脚头重脚轻轻”,常用常用

8、it 作形式主语作形式主语,而把从句放在后面而把从句放在后面.4种句型。种句型。5.主语从句作主语时，谓语动词一般用主语从句作主语时，谓语动词一般用单数单数形式。形式。第14页/共17页1. What you left are only several old books.2. What you said is of great importance.6）主语从句中用陈述语序）主语从句中用陈述语序,7）“what”引导主语从句时，谓语动词：引导主语从句时，谓语动词： 常与其后的名词作表语一致常与其后的名词作表语一致 ，且根据句子的语境而定，且根据句子的语境而定。 eg：8) . 用于用于 It is important / natural / necessary / impossible that.句型中句型中, 主语从句应使用虚拟语气主语从句应使用虚拟语气, 用用“should + 动动词原形词原形”的形式的形式, should有时可以省略。有时可以省略。9) . 在在 It + be + suggested/advised/ordered/reque