language points of u4-1.doc

Unit4 The science of the stars
Period 3 language points
编写人：钱秀英 林胭萍 审核人：陈满容
Learning aims:
1. To master the important usages of the key words and expressions.
2. To learn the usages of the useful words and sentence structures
Important and difficult point: to master the usages of the key words and expressions
说明:晚修30分钟独立完成【问题导学】
【问题导学】
课前完成金牌学案Unit 4Reading&Comprehension 导学互动中所有知识点,并记忆,课中听写。

合作探究（一）
I.课中听写及拓展：
II.巩固提高：
1. III on P28 of Textbook& Ex II on课时训练10.
2. 翻译练习：Ex III on课时训练10 (另加prevent…from…和puzzle自由造句)

Homework
1. 复习今天所学短语，明天听写。
2. 完成下面合作探究（二）句子部分。
3. Reading comprehension

合作探究二 美句仿写
1.What is even more important is that as the earth cooled down，water began to appear on its surface.更重要的是，地球冷却了下来，地球的表面就出现了水
【句子结构分析】
句中what引导一个______从句；that引导一个_____从句, 这个从句中有由as引导的____从句
改写本句：____________________________________________________________________
归纳句型：____________________________________________________________________
仿写：1. It is important that I have the chance to take part in the speaking contest.
=______________________________________________________________________
2.自由造句
___________________________________________________________________________.
2. It was not immediately obvious that water was to be fundamental to the development of life. 水对于生命的发展会起关键作用, 这一点在当时并不明显。(B3 P26)
【句子结构分析】
that引导的是_____从句,it 是_________,真正的主语是____________________________.
朗读：
(1) It was obvious/clear that he had been late for school again. 很明显他又迟到了。
(2) Obviously, electricity has been cut off.
归纳句型：___________________________________________
仿写 根据汉语意思, 完成英文句子。
⑴ 很显然他成功了。
_____________________________________________________________.
(2)自由造句
______________________________________________________________.
3. This produced a chain reaction, which made it possible for life to develop.(P26L25)这就产生了一系列的反应，使得生命就有可能开始发展了。
【句子结构分析】
which引导的是______________ it 是_________,真正的宾语是_______________。
朗读下列句子:
(1) The dictionary makes it much easier for me to learn English.
(2) I still find it hard to make good friends with them.
归纳【句型】:________________________________________________________________
仿写 根据汉语意思, 完成英文句子。
⑴因特网使我们有可能用很短的时间获知世界上发生的所有的事。
The Internet _________________ ___________________ what happens around the world in much less time.
⑵这段时间常下雨，这使我们很难按时完成任务。
__________________________________________________________________________.
⑶自由造句：
__________________________________________________________________________ .
4.So whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved.(P26L50)
生命在地球上是否延续数百万年将取决于这个问题能否解决。
【句子结构分析】
句中第一个whether引导一个_________从句；第二个whether引导一个_________从句。to come为不定式左后置定语修饰years.
朗读下列句子:
(1).Whether we can carry out the plan depends on whether we can collect enough money.
(2).Whether Mary will marry him depends on whether he loves her.
(3).Whether the global warming will become more serious depends on whether our activities will produce more carbon dioxide. 地球变暖是否加剧取决于我们的活动是否产生更多的二氧化碳
归纳句型：_____________________________________________________________
仿写 根据汉语意思, 完成英文句子。
(1) 我们下周是否进行考试取决于我们是否按时完成了任务。
_____________________________________________________________________.
(2) 我们明天是否进行野炊取决于明天是否天晴。
__________________________________________________________________________

【拓展应用】
I. 课文填空
At the very beginning, the earth was just a cloud of energetic dust. Then the dust settled into 1._______ globe moving around the sun. After that, it exploded loudly with fire and rock, 2. _____ (produce) water vapour, carbon, dioxide and other gases, 3._____ in the end made the earth’s atmosphere. Then the earth 4. ______(cool) down, and water, one of the earth’s special qualities, appeared and stayed on the earth, which made 5._____ possible for life to begin to develop.
Some small plants growing in the water appeared on the earth’s surface, followed by land animals, 6._______ insects, amphibians, reptiles and the most important animals called dinosaurs. 7.______ dinosaurs disappeared all of a sudden still remains8._______(puzzle).Some small clever animals with hands and feet appeared and spread all over the earth and thus they, in 9. _____ turn, become the 10.____ (important) animals on the planet---that is, human beings.
II. Finish Exercises1 on P28
III. 南方课堂：完成课时训练10&双语报

检测：
一． 重点单词：
1. ______________ n. astronomy 2. ______________ n. 系统;体系;制度
3. ______________ n. 学说;理论 4. _______________n.大气层;气氛
5. ______________ prep.不同;不像 6. _______________n. globe
7. _______________ v. multiply 8. _______________adv.因此;于是
9._______________ n. gravity 10.______________ n. Chain

二． 单词拓展：
1. _______adj.猛烈的;激烈的;强暴的________ adv. 强烈地；激烈地_______n.暴力；暴行
2. ____________ adj.有害的 ____________ adj.无害的 ____________ n.损害；伤害
3. ____________ vi.存在；生存 _________ n.生存；存在
4. __________n.谜;难题 vt.& vi.(使)迷惑_________ adj.令人困惑的__________adj.困惑的
5. ______________n.生物 ______________n.生物学家
6. ______________adj. 温柔的____________________adv.温柔地

三． 重点短语：
1. __________________ 以...开始 2. __________________ 四面八方3.__________________ 一团...... 4.___________________及时
5. __________________冷却 6. ___________________对...是必要的
7. _________________ 允许某人做某事 8.___________________ 对... 有害
9. _________________ 下蛋 10. __________________ 产生;分娩
11. _________________轮到某人;接着 12. __________________阻止;制止
13._________________因为...的结果 14.__________________ 依靠

四． 重点句型：Recite the following sentences
1.______ __ even ____ ________ is ____as the earth cooled down，water began to appear on its surface. 更重要的是，地球冷却了下来，地球的表面就出现了水。
2.___ ____ not immediately _____ ____ water was to be fundamental to the development of life. 水对于生命的发展会起关键作用, 这一点在当时并不明显。
3.This produced a chain reaction, _____ made ____ possible for life to develop. 这就产生了一系列的反应，使得生命就有可能开始发展了。
4.So _______ life will continue on the earth for millions of years to come will ______ __ ______ this problem can be solved. 生命在地球上是否延续数百万年将取决于这个问题能否解决。

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