高中英语必修三导学案《UnitAstronomyUsefulstructures》

学习目标：

1．Get the students to study noun clauses.

2. Enable students to use noun clauses correctly and properly.

重点: How to use noun clauses as the subject correctly and properly.

难点: How to judge different noun clauses

自主学习

1.定义：

在复合句中作主语的从句叫主语从句。引导主语从句的连接词主要有：连接代词who，whom，what连接副词when，where，how，why及连词that，whether。

2.常见用it作形式主语的复合句结构

◆ It is a fact（a good idea / a pity / a shame / no wonder / good news…）that…如：

It’s a pity that you missed the film. 你没有看那部电影真是太遗憾了。

◆It is reported(well-known/ hoped / thought /said /believed /suggested/ordered）that…

It is said that he was killed in the earthquake. 据说他在地震中丧生了。

◆It is necessary （clear / true / strange/ important /wonderful /

possible/likely…）that…需要注意的是，这类主语从句中谓语动词多为“（should）＋动词原形”，即要用虚拟语气。

It is necessary that you （should）master the computer. 你很有必要掌握电脑。

◆ It seems （happened / appears / doesn’t matter / makes no difference ）that … It seems that they will win the game. 看起来他们好像会赢得这场比赛。

3.主语从句中应注意的几点：

1）主语从句的语序

主语从句要求使用_________语序，而非一般疑问句语序。如：

What surprised me most was that the little girl could play the violin so well.

使我感到惊讶的是这个小女孩的小提琴拉得太好了。

2）主句谓语动词的选用

一般情况下单个的从句作主语时，主句的谓语动词用单数形式

That Beijing is the capital of China is known to everyone. 人人都知道中国的首都是北京。

我的疑惑：

合作探究

一指出下列为何种从句、

1）What he wants is a book.

2）Please tell me who your monitor is.

3）This is why he did it.

4）That he wants a book is certain.

5）I suggested just now we (should) take part in this competition.

主语从句是: 宾语从句为________

表语从句为__________

二单项选择

1.________ makes mistakes must correct them.

A. What

B. That

C. Whoever

D. Whatever

2. It worried her a bit ____ her hair was turning grey.

A. while

B. that

C. if

D. for

3. When and why he came here ________ yet.

A. is not known

B. are not known

C. has not known

D. have not been known

4._____ surprised me most was ____ such a little boy of seven could play the violin so well.

A. That...what

B. What...that

C. That...which

D. What...which

5. There is no doubt ________.

A. that Mr. Hansen is in good health

B. whether is Mr. Hansen healthy

C. if Mr. Hansen's health was returning

D. whether Mr. Hansen in health

6. You can’t imagine _____ when they received these nice Chris tmas presents.

A. how they were excited

B. how excited they were