Unit 4 Astronomy 知识点导学案人教版高中英语必修三.docx

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1、Book 3, Unit 4 Astronomy 导学案（教师版）一重要单词1.astronomy n. 天文学astronomer. astronomical adj.天文学的，极大的2. religion n. 宗教；宗教信仰religious.笃信宗教的3. develop vt.发展，发达development 发展n._ developed_adj.发达的developing.发展中as . develop/with the development of. 随着.的发展4. unlike prep.不同;不像likely adj.极有可能的. dislike 不喜欢 alike_ad

2、j. / adv.相同的（地）5. presence n. 出席；到场；存在present adj. n. v. Absence n. 缺席absent adj. represent v. 代表representative n6. react.反应reaction n. react to对.反应7. globe n.球体；地球仪；地球global adj. 8. system n. 系统；体制systematic adj.9. lessen v. 减少；减轻less adj. 10. biology n. 生物学 biologistn. 生物学家 biological adj. biologi

3、cally adv.11. gentle adj. 温和的；文雅的gently adv. Gentleness n. 12. exhaust vt.用尽；耗尽；使筋疲力尽exhausted adj. 感到筋疲力尽 exhausting adj. 使人筋疲力尽exhaustion n.13. weigh adv. 失重地weight n 14. cheer n. 欢呼v.欢呼，鼓励cheerful adj. cheerless adj. (不高兴的；不快乐的二.重要短语1. lay eggs下蛋 2. block out挡住(光钱)3. cheer up_感到高兴; 感到振奋4. break o

4、ut 突发; 爆发5. watch out(for) 密切注视; 当心; 提防6.以开始begin with8.熟悉，掌握get the hang of9.突然all of a sudden10.各种各样的. all sorts of11.四面八方in all directions12.冷却下来 cool down三重要句子1.原句It was not immediately obvious that water was to be fundamental to the development of life.(L18，P26)水对于生命的发展会起关键作用，这一点在当时并不明显。2.原句： T

5、his produced a chain reaction，which made it possible for life to develop.(L25，P26.)这就产生了一系列的反应，使得生命就有可能开始发展了。3.原句：When we get closer to the moon，we shall feel its gravity pulling us，but it will not be as strong a pull as the earths.当我们更接近月球时，就会感到月球的引力在拉我们。但是，月球的引力不像地球的引力那么大。(L1，P31)4.原句: Whether lif

6、e will continue on the earth for millions of years to come will depend on whether 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。(B3 P26) 4.原句：But when I tried to step forward, I found I was carried twice as far as on the earth and fell over.而当我试着向前迈步的时候，我发觉我被送出去很远，步子的跨度竟是地球上的两倍，因而我摔倒了。写作应用写作

7、运用 翻译合并下列句子。(1) 依我看，政府理应采取有效措施防止雾霾(haze)变得越来越糟糕。As far as I am concerned, the government is supposed to take effective measures to prevent the haze from getting worse.(2) 雾霾大大地影响了人们的日常生活。The haze has greatly affected peoples daily life.(用非限定性定语从句)合并：As far as I am concerned, the government is suppos

8、ed to take effective measures to prevent the haze, which has greatly affected peoples daily life, from getting worse.写作运用 翻译合并下列句子。(1) 你已经掌握了太阳系的相关理论。You have already got the hang of the relevant theory of the solar system.(2) 请向我们解释一下这个现象吧。Please explain the phenomenon to us.(用原因状语从句)合并：Now that/Si

9、nce you have already got the hang of the relevant theory of the solar system, please explain the phenomenon to us.写作运用 翻译合并下列句子。(1) 2008年，汶川发生了一场可怕的地震。In 2008, a terrible earthquake broke out in Wenchuan.(2) 地震给那里的人民造成了巨大的损失。The earthquake caused great damage to the people there.(用现在分词作状语)合并：In 2008

10、, a terrible earthquake broke out in Wenchuan, causing great damage to the people there.写作运用 翻译合并下列句子。(1) 他们接着提出了一个建议。They, in their turn, put forward a proposal.(2) 教育体系应该尽快改革。Educational system should be reformed as soon as possible.(用同位语从句)合并： They, in their turn, put forward a proposal that educational system should be reformed as soon as possible.语言知识运用1. 上个星期天, 我家附近的一座大楼发生了一场大火灾。2. 楼梯到处是烟雾, 这使人们很难逃生3. 一个正要生孩子的妇女被困在10楼。4. 一个太老了而不能走的生物学家在向人们求助。5. 幸好消防员及时赶到并尽最大的努力营救处于险境的人们。6. 依靠他们专业的知识, 消防员很快就阻止了火势的蔓延。7. 很明显他们没办法救出所有的人。8. 从这个故事, 我们知道我们能否杜绝火灾取决于我们是否有安全意识。教学反思：学科网（北京）股份有限公司