必修三Unit4-教学案五-grammar.doc

阳江市第三中学2014级高一（英语）教学案五
课题：Unit4 Astronomy: the science of the stars
Grammar: Noun clauses as the subject
1．Teaching aims (教学目标)
1) Learn the use of the noun clauses as the subject.
2) Make sure that the students can do the exercises correctly.
2. Teaching important and difficult point
Master the use of the noun clauses as the subject.
3. Teaching methods
Discussing, summarizing and practicing.
4. Teaching procedures
Step1: Lead-in
Ask Ss to underline the subject of two groups of sentences.
Step2: Point out the grammar: noun clauses as the subject
Step3: Learn the grammar in details
1. 定义：在句子中充当主语的从句叫主从
2. 基本结构：1）主从放句首
2）主从放句末
3. 连接词：that, whether, who, whose, what, which, when, where, why, how等
(1) What we see are three cute babies.
(2) That she is beautiful is obvious.
(3) Whether they will get married is still unknown.
Exercises 一. 用正确的连接词填空
1. ______ we need are more books.
2. ______ he loves is none of my business.
3. ________ the man did this remains a puzzle.
4. _______ she will come or not is not sure.
5. ______ the earth moves around the sun is well known.

★为了避免头重脚轻，常用 it 作形式主语, 而把主语从句放在句子末尾，重要句型有：
1) It is + 名词 + 主从
It is a pity/ a fact that+主从 遗憾的/事实是…
2) It is + 形容词 + 主从
It is sure/certain(确定的), obvious(明显的), important(重要的) + 主从
3) It + be + 过去分词 + 主从
It is well known that + 主从 众所周知…
It is said that + 主从 据说…
It is reported that + 主从 据报道…
It is believed that + 主从 据认为…
Exercises 二. 完成句子
(1) _____________ the 2008 Olympic Games took place in Beijing.(众所周知)
(2) ___________________ he is the best student in the class.(明显的)
(3) __________________ she has made such a mistake.(很遗憾)
(4) ___________________ Tom will do well in his exam.(确定的)
注意：
1. whether引导主从放句首句末均可, 但if引导的主从只能放句末
2. 连接词 that 一般不可省略
3. 主从用陈述句语序(主语+谓语+其他成分)
4. 连词引导主从时，谓语通常用单数；
但what 引导主从时，谓语动词：
1) 一般情况下，用单数
2) 与后面的名词一致
Exercises 三. 单选
1. _____ you don’t like him is none of my business.
A. What B. Who C. That D. Whether
2. _____ he said at the meeting is interesting.
    A. What B. That C. Which D. Whether

3. It is clear _____ he has no money with him.
A. what B. that C. which D. when
4. _____ it is true remains a problem.
A. this B. that C. whether D. it
5. _____ the sports meet will be held depends
on the weather.
A. Whenever B. If C. Whether D. That
6. _____ he didn’t come here yesterday is unknown.
A. Where B. When C. What D. Why
7. When and why he came here ______ yet.
A. is not known B. are not known
C. has not known D. have not known
Exercises 四. 判断对错
(1) What can you do is to leave her.
(2) When will we have the sports meet is not sure.
(3) It is obvious that he was telling a lie.
Step4: Homework
1. 总结并复习今天所学的主从
2. 完成《全优课堂》P61-62
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