高一英语人教新课标 必修3 UNIT4 导学案答案(17页).doc

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1、-高一英语人教新课标 必修3 UNIT4 导学案答案-第 17 页Unit4 Astronomy: the science of the stars单 元 学 习 目 标 导 航类别新课标要求掌握的项目话题1.Talk about the science of the stars, the development of life and space travel and gravity 2.Practise giving instructions and talking abut problems in study or life词语单词astronomy, atmosphere, syste

2、m, violent, solid, explode, carbon, dioxide, oxygen, surface, planet, harmful, development, spread, method, depend, exist, presence, telescope, disappoint, disappointed, publish, publishing, gravity, force, gradually, cheer, float, mass词组solar system, in time, preventfrom, depend on, cheer up, now t

3、hat, get the hang of, break out, give birth to, watch out, block out, carbon dioxide功 能1. Talk about the science of the stars, the development of life and space travel and gravity Where do we come from? How did the universe begin? How will it end? Why is the universe the way it was? How much do you

4、know about universe?Do you know something about gravity/about black holes?2. Giving instructions Please look at/ listen to Please check that You need Please pay attention to Dont forget to Youd better Make sure you Watch out for You mustnt3. Talking about problems in study or lifeMy problem /trouble

5、 is The difficulty/question is My advice/suggestion is What I think about it is The fact is 语法主语从句 What it was to become was a mystery until the dust began to slowly combine into a ball moving around the sun. What is even more important is that as the earth cooled down, water began to appear on its

6、surface.班级_ 姓名_小组_第一课时 warming up & pre-reading 自主学习学案学习目标：1. 语言目标 Language aims: 2. 能力目标 Ability aims:1) 进一步熟悉掌握一些阅读技巧，比如快速寻找文章细节信息(scanning)、归纳和总结（summarizing）。2) 让学生学会表达自己的思想。3) 情感目标 Emotional aims: 让学生弄清楚什么是科学思想，什么是宗教信仰或文化传统。在探讨生命的起源的科学道理之前，交流一下有关宇宙的起源的种种传说,调动学生的相关知识，激活学生的思维。重点 key points:Talk a

7、bout the beginning of life on the earth.b. Discuss the order of development of life难点 important points: Understand the beginning of life on the earth. Step I some questions in warming up 1. How much do you know about the universe?What are they?_2. Who is the first man landing on the moon?_Step II pr

8、e-reading Task one: Fill in the blanks after listening1) According to a widely accepted theory, the universe began with a “_” that threw matter in all directions.2) It was not immediately obvious that _ was to be fundamental to the development of _.3) They are putting too much CO2 into the atmospher

9、e, which prevent _ from escaping from the earth.Task two: careful reading and write down the main idea. paragraph 1: _.paragraph 2: The formation of _.paragraph 3: The importance of _.paragraph 4: _of plants and animals on the earth. paragraph 5: _ of humans and their impact on the earth.Task three

10、: Put the order of development of life into a timeline.1 Insects and amphibians appeared 2 Dinosaurs appeared 3 The earth became a solid ball 4 Small plants greaw on the water 5 Reptiles appeared 6 Plants began to grow on dry land. 7 The earth was a cloud of dust. 8 Water appeared on the earth 9 She

11、llfish and other fish appeared. 10 The universe began with a “Big Bang”11 Clever animals with hands and feet appeared. 12 Mammals appeared.Answers: _Task Four: summaryAfter the “Big Bang”, the earth was just a cloud of dust. It _ loudly with fire and rock, which were _ _to produce the water vapour,

12、_ and other gases. Then small plants grew . They _and filled the oceans and seas with oxygen. Many millions of years later the first green plants began to _on land. When the plants grew into forests,_ appeared for the first time. They produced young generally by _eggs. When dinosaurs disappeared, _

13、became more important. Now small clever animals with _appeared and _all over the world. As time _ they covered the earth and they are putting too much carbon dioxide into the _, which _heat _ _ from the earth into space. Whether life will continue on earth for millions of years to come will _whether

14、 this problem can be solved.Language points :1. However , according to a widely accepted theory, the universe began with a “ Big Bang” that threw matter in all directions.in all directions = in every direction 向四面八方He walked _ the village. 他向村庄方向走去。2After that,atoms began to form and combine to crea

15、te stars and other bodies 然后，原子开始形成并结合成行星、恒星和其它固体的天体。 combine 1）V(使)结合；(使)合并 （A级） We consider it necessary to combine theory with practice 我们认为理论联系实际是必要的。 2) V联合；混合(unite；mix) The two small shops combined to make a large one 这两个小店合并成为一个大商店。 相关链接 （B级） combine 与 join 的区别 combine指抽象意义的结合，并成为不可分割的一个整体。

16、join指具体的把两者或两者以上的东西结合在一起或者使某人成为某团体的一员。Youd better combine theory with practice 你最好将实践与理论结合起来。The new highway has joined our village to the new city. 新的高速路把我们村子与现代化大城市连接起来。 巩固提高 1) The two countries_ against their common enemy.A connected B. united Ccombined Dwere combined 2)If your knowledge can be

17、in some way _ with my experiences , we are sure to succeed.A joined B united C connected D combined 随堂小测一 单词拼写 1. With the _ （发展）of economy, peoples living standards are higher now.2. No one knows_ ( 确切的) how the earth began, as it happened so long ago.3.After school, the students run in every _ ( 方

18、向)4. We should _ (把.与结合) work with pleasure.5. In our solar _（系）eight plants circle around the sun.6. Each _(宗教)and culture has its own ideas about how life began on earth.7. _（根据）to the report, the young should care more about the old.二. 翻译下面短语 1 太阳系 2及时，总有一天 3 四面八方 4 一团尘埃 5 根据 6 生命的起源班级_ 姓名_小组_第二课

19、时 reading 自主学习学案要点探究1. What it was to become was uncertain until between 4.5 and 3.8 billion years ago随后它会变成什么没人能知道，直到38亿至45亿年前， “be to+动词原形”的用法归纳： （A级）(1)表示按_要做的事。 When are you to leave for home? 你什么时候回家? （B级）(2)表示_的事 He was to become a pianist after so many years of hard work这么多年的训练之后他注定会成为一个钢琴家。（

20、C级） (3)表示“_”，相当于should/ought to. You are to report to the police你应该报警。 (4)表示“_”，相当于must，have to. You are to do your homework before you watch TV 看电视之前你得先做完作业。 跟踪演练：In a room above the store, where a party _, some workers were busily setting the table. A.was to be held B.has been held C.will be held

21、D.is being he 2The earth became so violent that it was not clear whether the shape would last or not 地球(开始)变得激烈动荡，不知道这个固体形状是否会继续存在下去。 1) violent adj猛烈的；激烈的；强暴的 The boat sank in a _ storm at sea 船在海上强烈的风暴中沉没。Not a few _ scenes were cut from the film before it came to show这部影片在放映前剪去了不少暴力镜头。相关链接 （B级） n

22、. violence， adv. violently (C级) do violence to对行凶；伤害 take by violence 强夺巩固提高 1) The villagers were often in _ dashes with each other in those years before the agreement was reached2）The _ of the snowstorm caused much damage.3) Your words did violence to the truth.（翻译）_2) whether在本句中引导主语从句，该句还可变为：Whe

23、ther the shape would last or not was not clear.此结构还可用于其他的名词性从句（宾语从句、表语从句、同位语从句）或状语从句中。Tell me whether or not you are interested. = Tell me whether you are interested or not. 告诉我你有没有兴趣。Whether or not it rains(=_), were playing football on Saturday. 无论下不下雨，我们星期六一定踢足球。跟踪演练All people, _ they are old or

24、young, rich or poor, have been trying their best to help those in need since the disaster. A even if B whether C no matter D however 3It exploded loudly with fire and rockThey were in time to produce carbon，nitrogen，water vapour and other gases，which were to make the earth atmosphere从而形成了地球的大气层。它(地球

25、)猛烈的爆炸喷出了烈火与岩石，最终产生了碳、氮气、水蒸汽和其它多种气体, 1) explode v爆炸，炸开；(感情)迸发；(人口)突然或迅速增加，名词为explosion At last his anger exploded 他终于大发雷霆了。 There will be no standing room on the earth because of the exploding world population 由于激增的世界人口，地球上将无立足之地。巩固提高 (1)The volcano(火山)_suddenly. Aexploded Bburst Cerupted Dexploding

26、 (2)Hearing his son hurt badly by a stranger，the man _ with anger Aexplored Bexposed Cexploded Dexplained (3)With the_of population，more schools will be set up in our cityAexplosion B. expression Cexplanation Dexploration2) in time迟早，最后；及时 1)You11 learn how to do it in time你早晚能学会做这件事的。 2)Will I be i

27、n time for the train? 我赶得上那趟火车吗?相关短语 (B级)in no time立刻，马上 on time按时；准时 at times有时 at one time一度；从前 for the time being暂时 once upon a time从前 from time to time不时地巩固提高 Youll succeed _ because you are always working hard I hope you can arrive here _ to see Mr Green before he leaves this afternoon. 3) atmo

28、sphere n. 大气；空气;气氛；环境 We live in an atmosphere of freedom. 我们生活在自由的环境中。 He is fond of the atmosphere of peace and calm in the country 他喜欢乡间的和平宁静的气氛。 巩固提高 Completely lost in the exciting_of the football match，Tom didnt feel his pocket picked Ascene Bview Catmosphere Dsight 4. What is even more import

29、ant is that as the earth cooled down, water began to appear on its surface cool down. cool down变凉, 冷却晒了一天的太阳之后,他喜欢在海水中凉快一下. After a day in the sun, he liked to _ in the sea.他的话平息了她的怒气. His words _ her anger.5. What many scientists believe is that the continued presence of water allowed the earth to

30、dissolve harmful gases and acids into the oceans and seas.很多科学家相信，由于地球上长期有水存在，它使得地球得以把曾经存在于大气层中的有害气体和酸性物质溶解在海洋里。 (1) “What believe”是主语从句，what 在主语从句中作宾语。 (2) presence n. 存在；出席；到场 反义词 absenceShe was so quiet that her _ was hardly noticed. 她一声不响，几乎没人留意到她在场。相关链接in ones presence/in the presence of sb. 在.

31、面前；当着的面 (3)harmful adj. 有害的；伤害的 Your smoking can be harmful to the health of your children 你吸烟会危害到你小孩的健康。 We should wipe out harmful insects我们应该消灭害虫。 归纳拓展 harm n.& vt损伤，伤害 (B级) do sbharmdo harm to sb对某人有害 do more harm than good弊大于利 It does no harm (for sb)to do sth做某事无害处 （C级）harmless adj.无害的 harmles

32、sly adv无害地 harmlessness n无害 巩固提高 Everyone knows smoking is_ to their health，but many of them cant tear themselves away from it Aharmful Bgood Chelpful Dbad 6This produced a chain reaction, which made it possible for life to begin to develep这长生了一种链式反应，那使生命的生长发育成为一种可能。 此句中的made后跟带形式宾语it的复合结构，其中it是形式宾语

33、，真正宾语是不定式复合构“for life to begin to develop”，宾语补足语是possible。基本形式为make+it+adj.n+to do。 She made it her business to find out who was responsible她非要弄清楚是谁的责任不可。 Zhongguancun made it possible for him to follow his dreams and help the country he loves.中关村使他有可能实现自己的梦想，同时为他所热爱的国家做出自己的贡献.归纳拓展 常用于此结构的动词还有think，

34、feel，find，consider等：He finally found it impossible to finish the task on time without my help他终于发现没有我的帮助按时完成这项任务是不可能的。I feel it my duty to help you我觉得我有责任帮助你。I think it interesting to study English我认为学英语很有意思。巩固提高I found_.(到达那里很难)I think_. (打扫房间是我的职责)I consider_. (学英语很有用) 随堂小测一 单词拼写 1) We have a larg

35、e s_ of railways.2 )The new methods he suggested sounded good in t_ , but is not practical in use.3) The boat sank in a v_ storm at sea.4) She is u_ her mother; she is tall and her mother is very short.5) Efficiency (效率) would be m_ several times.6) Wide differences of character _(存在) even in childr

36、en of the same family.7) The _(气氛)of the meeing is very friendly.8) She asked them not to discuss the matter in her _.(在场)9) One cannot e_ without air.二 单项选择1. The custom of arranged marriage still _ in many countries.A. appears B. lays C. lives D. exists2. China is a country, but America is a count

37、ry. A. developing; developing B. developed; developed C. developing; developed D. developed; developing3. he can pass the entrance examination is quite uncertain. A. If B. Whether C. That D. What4. makes this shop different is that it offers more personal services. A. What B. Who C. Whatever D. Whoe

38、ver5. What we used to think impossible now does seem possible. A. is B. was C. has been D. will be 6. As the busiest woman in Norton, she made her duty to look after all the other peoples affairs in that town. A. this B. that C. one D. it班级_ 姓名_小组_第三课时 reading 自主学习学案7. Many millions of years later,

39、the first extremely small plants began to appear on the surface of the water. 好几百万年以后，水的表面开始出现了极小的植物。million n.&adj. 百万（的）；当hundred, thousand, million, billion 被数词修饰时，总是用单数。There are two _hundred_ people in the hall. 大厅里有二百人。当hundred, thousand, million, billion后面接of 短语时用复数形式。Hundreds/thousands/milli

40、ons/billions of people starved to death in the earthquake because of the delay of supplies.8.They laid eggs too and existed on the earth for more than 140 millon years. 他们也产卵，在地球上生存了一亿四千多万年。(1) lay 产卵 Fat hens lay few eggs. 鸡肥不下蛋。The cuckoo lays its eggs in other birdsnests. 杜鹃在其它鸟的巢中产蛋。Will you lay the table for dinner? 请你摆好晚餐的桌子好吗？His parens lay great hope on him. 他的父母对他寄予很大的希望动词原形词义过去式过去分词现在分词lay产卵；放置laidlaidlayinglie说谎liedl