学年高中英语人教版必修三Unit4单元导学案教师版定稿Word文件下载.docx

1、把下列拓展抄到词汇表里，并熟记。词汇拓展systemsystematic adj. 有系统的，有规则的existexistence n. existent adj. religionreligious adj.puzzleadj. puzzled 感到迷惑的puzzling 令人迷惑的theorytheoretical adj. 理论的biologybiological adj.billionbillionaire n. 亿万富翁billions of 数以亿计的；亿万satelliteman-made satellite 人造卫星violentviolence n.violently adj

2、.gentlegently adv.in timeon time 按时finally/at last/eventually 最终physicistphysics n. 物理（学）physical adj. 物理学的;身体的physically adv身体上unlikedislike vt. 不喜欢; 厌恶extinctextinction n.fundamentalfundamentally adv. 基础地; 根本地; 从根本上;crashcrash down 猛然倒下air crash 飞机失事presencepresent adj. 现在的; 目前的; 出席的; v. 颁发；授予；呈献；

3、 n. 现在; 礼物;lessenless adj. 较少的（little的比较级）; 较小的; adv. 较少地，较小地;harmfulharm v.&n.be harmful to=do harm toweightlesslyweigh v. 称的重量; 权衡weight n. 重量，体重 weightless adj. 没有重量的，失重的，无重力的;chainchain vt. 用铁链锁住; 监禁，束缚;now thatsincereactionreact v. exhaustexhausted adj. 耗尽的; 用完的; 筋疲力尽的; 精疲力竭的;exhausting adj. 令人

4、筋疲力尽的lay laid, laid, laying watch out forlook out formy notes（此外，我还想到了以下拓展）【训练案】一 单词填空：1. Astronomy （天文学）is the scientific study of the stars, planets, and other natural objects in space.2. Over the years several similar theories （理论）have been put forward.3. We use a globe （地球仪）in our geography clas

5、s.4. Many cinema-goers were shocked by the films violent （暴力的） and tragic end.5. At least this second meeting had helped to thaw（缓和） the atmosphere （气氛）. 6. Well all be arrested! Thomas yelled, which was most unlike （不像）him.7. Clothes are a fundamental （基本的） form of self-expression.8. Stephen notice

6、d that the people around him looked cheered by his presence （出现、在场）.9. Friendship multiplies （增加） joys and divides griefs.10. The brain requires a constant supply of oxygen （氧气）.11. He completely ignored all these facts as though they never existed （存在）.12. Jimmy is adopted and thus （因此） unrelated t

7、o Beth by blood.13. My sister puzzles （使迷惑） me and causes me anxiety.14. The biologist （生物学家）advanced a new theory of life.15. An apple falls down because of gravity（重力）.16. The two countries signed an agreement to jointly launch satellites （卫星）.17. If climate （气候） changes continue, we will suffer t

8、he consequences.18. The scientist could not calculate when the spaceship（太空船）would reach the Jupiter.19. I let myself out into the street and pulled （拉）the door shut.20. Some leaves were floating （漂浮）around on the still lake.二 单句语法填空：1. Most religions （religious）teach you to be truthful and self-dis

9、ciplined.2. Global （globe） warming is a real problem.3. The French government called for an end to the violence （violent）.4. Language is something which fundamentally （fundamental）distinguishes humans from animals.5. There is a general awareness that smoking is harmful （harm）.6. They kept me chained

10、 （chain） up every night and released me each day.7. Grace laid（lay）out the knives and forks at the lunch-table.8. Surely my existence （exist） cannot be so purposeless?9. Put on rain boot when washing floor, to prevent yourself from slipping （slip）down.10. Critics remain puzzled （puzzle）by the Britis

11、h election results.11. At present （presence）children under 14 are not permitted in bars.12. He laid his hand gently （gentle）on her head.13. He was awarded the Nobel Prize for Physics （physicist） in 1985.14. The plant is now in danger of extinction （extinct）.15. The lifeboat crashed （crash）against th

12、e side of the sinking ship.16. Regular exercise can help to lessen （less）the pain.17. I cheered up immediately and floated weightlessly（weigh） around in our space cabin watching the earth becoming smaller and the moon larger.18. I didnt quite get the hang of his argument.19. I was in a nightclub in

13、Brixton and a fight broke out.20. After such a long and exhausting （exhaust）day, the only thing she wanted was a good nights sleep.Part 2 Language Points in Reading 11. 预习部分：I. 精读课文，互译文中的词汇、句型及语法结构。 II. 记下自己的疑问，以备堂上讨论，释疑。2. 探究部分：堂上完成。3. 练习部分：堂上或课后完成。1. 熟读掌握Reading 1中出现的语言点，温故知新。2. 重点掌握Reading 1语言点重难

14、点的运用。温故知新：文中表达法互译或按课文填空。正文QsHOW LIFE BEGAN ON THE EARTHNo one knows exactly how the earth began（宾语从句）, as （由于，因为） it happened so long ago. However, according to （根据） a widely accepted （广泛接受的） theory, the universe began with a Big Bang that threw matter in all directions （四面八方）. After that, atoms beg

15、an to （开始去做.*begin doing sth.） form and combine to create stars and other bodies.For several billion years after the , the earth was still just a cloud of dust. What it was to become （主语从句；be to do sth. 计划，安排做.） was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a s

16、olid globe（定语从句）.（随后它变成什么没人知道，直到38亿至45亿年前，这团尘埃才慢慢地形成了一个固体的球状物） The earth became so violent that （如此.以致于.） it was not clear whether the shape would last or not （主语从句）. It exploded loudly with fire and rock. They were in time to produce carbon, nitrogen, water vapour and other gases, which were to mak

17、e the earths atmosphere（最终产生二氧化碳、氮气、水蒸气和其他气体，从而形成了地球的大气层）. What is even more important （主语从句） is that as the earth cooled down, water began to appear on its surface （表语从句）.Water had also appeared on other planets like Mars but, unlike the earth, it had disappeared later. It was not immediately obvio

18、us that water was to be fundamental to the development of life （主语从句; be fundamental to.对.是必要的/根本的）. What many scientists believe （主语从句） is that the continued presence of water allowed the earth to （允许.做.） dissolve harmful gases and acids into the oceans and seas（很多科学家相信，地球上长期有水存在，使地球得以把有害气体和酸性物质溶解在

19、海洋里）. This produced a chain reaction, which made it possible for life to develop （ it 作形式宾语）.Many millions of years later, the first extremely （极其; 非常） small plants began to appear on the surface of the water. They multiplied and filled the oceans and seas with （用.装满） oxygen, which encouraged the la

20、ter development of early shellfish and all sorts of fish （ all sorts of 各种各样的）. Next, green plants began to grow on land. They were followed in time by land animals. Some were insects. Others （一些.另一些）, called amphibians （过去分词作定语）, were able to live on land as well as （和） in the water. Later when the

21、 plants grew into forests, reptiles appeared for the first time （第一次, 作状语）. They produced young generally by laying eggs （by+v-ing 通过做.）. After that, some huge animals, called dinosaurs （过去分词作定语）, developed. They laid eggs too and existed on the earth for more than 140 million years. However, 65 mil

22、lion years ago the age of the dinosaurs ended. Why they suddenly disappeared （主语从句） still remains a mystery. This disappearance made possible the rise of （.的出现） mammals on the earth. These animals were different from （与.不一样） all life forms in the past, because they gave birth to young baby animals a

23、nd produced milk to feed them.Finally about 2.6 million years ago some small clever animals, now with hands and feet, appeared and spread all over the earth （遍及各个角落）. Thus they have, in their turn, become the most important animals on the planet. But they are not looking after the earth very well. T

24、hey are putting too much carbon dioxide into the atmosphere, which prevents heat from escaping from the earth into space. As a result of this （由于这样）, many scientists believe the earth may become too hot to （太.以致不能.） live on. So whether life will continue on the earth for millions of years to come （主

25、语从句） will depend on whether this problem can be solved（宾语从句）. （生命究竟是怎样起源的是科学家们觉得最难解决的问题之一）Useful expressions: according to 根据. lay eggs 下蛋 allow sb. to do sth. 允许.做. be different from 与.不同 fill. with.用.装满. as a result of this 由于这样 for the first time 第一次 depend on 依赖；依靠 in time 及时，终于 be harmful to 对.

26、有害 give birth to 产生；分娩 in ones turn 轮到某人 prevent.from 阻止；制止 【探究案】Key words and expressions in Reading 1 1. However, according to a widely accepted theory, the universe began with a “Big Bang”. 然而，一种普遍为人们所接受的理论是：宇宙起源于一次大爆炸【拓展】begin withstart with 以开始；由作为开头to begin with 首先；第一点【例句】1） The proceedings wi

27、ll begin with a speech to welcome the guests.大会议程首先是向来宾致欢迎辞。2） To begin with, she is too young for that kind of job.首先，她做这种工作年纪还太轻。2. They were in time to produce carbon dioxide, nitrogen, water vapour and other gases. 它们最终产生了二氧化碳、氮、水蒸气和其他气体。in time 1. 及时，适时 2. 迟早, 最后on time 准时，按时 at times有时at a tim

28、e每次in no time立刻；马上 at the same time同时at one time一度；从前at no time绝不（置于句首时，句子常用倒装） 1） Fortunately a soldier came to rescue in time to save the drowning boy.2） You will succeed in time as long as you dont give up.3） At no time should we give in to difficulties.4） Do one thing at a time and do it well.5）

29、 He behaves very oddly at times. I dont think hes quiet all there.3. Water had also appeared on other planets like Mars but unlike the earth，it had disappeared later.水也出现在像火星那样的其他行星上，但和地球不同，其他行星上的水后来都消失了。【词语链接】dislike n反感，不喜爱 vt.不喜欢，厌恶likely adj可能的 unlikely adj不可能的be likely to do sth可能做某事Its likely

30、that.有可能1） Its more than likely the votes will have to be counted again2） Her latest novel is quite unlike her earlier work.3） If you go on like that youll get yourself disliked4） I was very interested in the lecture, unlike many of the students （不像其他学生）.4. What many scientists believe is that the continued presence of water allowed the earth to dissolve harmful gases an