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exactly 精确地，准确地，确切地 exact adj. eg. Your answer is exactly right.
happen take place Great changes have taken place in my hometown
in the last thirty years.
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5. This produced a chain reaction, which _________________________________.
这就产生了一系列的反应，使得生命的发展成 为可能。
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答案： 1.so violent that 2.were in time to produce; were to make 3.It was not immediately obvious that 4.What many scientists believe is that 5.Which made it possible for life to develop.
②It's unlike him to be late; he's usually on time. 他不是会迟到的那种人；他通常很准时。
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易错点拨 自我完善·误区备考 1. unlike/dislike/alike/likely (1)unlike prep.不同；不像 (2)dislike vt. 不喜欢 (3)alike adj. 相似的，同样的 (4)likely adj. 很可能发生的，有希望的
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according to 根据，按照，据......所说
翻译：Everything went accoring to plan.
theory
a formal set of ideas that explain why sth. happens n. 学说，理论
throw---threw---thrown throw away 扔掉
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Ⅲ.完成句子 1．地球变得激烈动荡，不知道这个固体形 状是否会继续存在下去。
The earth became________________ it was not clear whether the shape would last or not. (so... that...如此……以至于……)
developed （社会，国家）发达的 deloping 发展中的
造句：中国是一个发展中的国家
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presence n．出席；到场；存在→present adj. & n. & v．在场的；目前，现在；出席；颁发， 授予
at present 现在，目前
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chain n．链子，连锁；锁链 ①This produced a chain reaction，which made it
possible for life to develop. 这就产生了一个连锁反应，使生命的发展成为可能。 ②He is in a poor taste with a thick gold chain round his
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atmosphere (n.) (1)(围绕地球的)大气；大气层；大气圈 (2)[C](房间、封闭空间或某处的)空气 These plants love warm, humid atmosphere. 这些植物喜欢温暖潮湿的空气。 (3)[C & U] 气氛； 氛围 The atmosphere changed as soon as she walked in. 她一进来气氛就变了。
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direction 方向 matter 物质
事情，问题 拓展：
as a matter of fact in fact actually
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combine ...with ...把......与......结合起来
翻译：They live happily because they combine their work with pleasure.
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●重点单词 1．astronomy n．天文学→astronomer n．天文学家 2．system n．系统；体系；制度 3．theory n．学说；理论 4. religion(n.)宗教，宗教信仰→religious(adj.)宗教上的 5．globe n．球体；地球仪；地球→global adj.全球性的；全 世界的 6. violent adj.猛烈的；激烈的；强暴的→violence n．暴力 →violently adv.猛烈地
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It is not clear whether he will come or not.
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in time
来得及；及时 ①If you catch the early bus, you'll get there in time. 如果你赶上早班车，你会及时到达那儿的。 ②Will we be in time for the six o'clock train? 我们来得及赶上六点钟的那趟火车吗？
造句：他是如此的有趣以至于每个人都很喜欢他。
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He is so funny that everyone likes him very much. it is not clear whether ...or not ......还不确定, 还 不清楚
句子仿写： 他要不要来还不确定
Unit 4 Astronomy: the science of the stars
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第一课时 Warming up & Reading
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Each religion and culture has its own ideas about how life began on earth. What do you know about them?
neck. 他戴着一条粗粗的金链子，显得俗气。
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●重点短ding to
据......所说；根据，按照
3. combine ...with...
把......与......结合起来
4. settle into
稳定下来
5. allow(permit) sb. to do sth. 允许某人做某事
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Homework
Recite the words Read the passage and analyze the four sentences
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Thank you for listening!
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3．水对于生命的发展起关键作用，这一点在当 时并不明显。
________________________________water was to be fundamental to the development of life. (It is obvious that...……很明显)
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2．喷出的烈火与岩石及时产生了碳、氮气、 水蒸气和其他气体，从而形成了地球的大气层。
They____________________________ carbon,
nitrogen, water vapour and other gases, which
____________ the earth's atmosphere. (be in time to do sth.及时做某事；be to do sth.常用来表示 不可避免将要发生的事情)
It is likely/unlikely that...有/没有可能......
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fundamental 基础的，基本的
Hard work is fundamental to success. 勤奋工作是成功的基础。 development n. 发展 develop v.
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solid 坚固的，结实的
globe n．球体；地球仪；地球→global adj.全球性 的；全世界的
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violent adj.猛烈的；激烈的；强暴的→violence n．暴力→violently adv.猛烈地
so ...that... 如此......以至于......
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7. fundamental(adj.)基本的；基础的 8. atmosphere n．大气层；气氛 9. unlike prep.不同；不像→dislike vt.不喜欢 10.presence n．出席；到场；存在→present adj. & n. & v．在场的；目前，现在；出席；颁发，授予 11. harmful adj.有害的；伤害的→harm n．危害，害处 →harmless adj.无害的 12．chain(n.)链子；连锁；锁链
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appear 出现v. appearance n. disappear 消失v. disappearance n