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preventfrom和puzzle自由造句)Homework1. 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。 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。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.这段时间常下雨，这使我们很难按时完成任务。_.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 earths atmosphere. Then the earth 4. _(cool) down, and water, one of the earths 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 earths 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 P28III. 南方课堂：完成课时训练10&双语报检测：1 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. globe7. _ v. multiply 8. _adv.因此;于是9._ n. gravity 10._ n. Chain2 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3 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4 重点句型：Recite the following sentences1._ _ 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 reac