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杨吉辉,西安市育才中学高级英语教师,民进会员。《中学英语教学参考》编辑部特邀编委,陕西师范大学外语学院教育硕士导师,论文评审及答辩委员会委员,陕西省首批网上支教教师。参与编写出版《 3+x 高考英语突破》《高中会考单元检测》《胜券在握》《胜券》《榜上有名2010陕西省高考新题型核心突破》《榜上有名语法分册》《榜上有名2011年高考一轮复习》《高考密码2012陕西一轮总复习》等 10 余部教辅资料。愿意为中学生朋友答疑解惑。

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高三总复习 必修三 Unit Four  

2013-04-05 22:41:44|  分类: 默认分类 |  标签: |举报 |字号 订阅

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Unit Four  Astronomy: the science of the stars

一、重点导学

根据所给句子判断知识点的词性词义,并归纳其用法

1、feed     词性:          词义:

 ※ 原句再现

These animals were different from all life forms in the past, because they gave birth to young baby animals and produced milk to feed them.

   这些动物和以前的任何生物形式都不同,因为它们产仔并用奶水喂养它们。

※ 拓展学习

   If I am laid-off, I will feed some pigs.

   Do you feed any pets at home?

   We feed grass to sheep.

   We feed sheep with grass.

※ 重点操练

   – I have a very bad cold.

--- Well, have you ever heard of a saying which goes “_______ a cold and starve a fever?”(喂养)

2、spread   词性:          词义:

 ※ 原句再现

Finally about 2.6 million years ago some small clever animals, now with hands and feet, appeared and spread all over the world.

   最后大约在两百六十万年前,一些有手有脚的小型聪明动物出现了,并且扩散到世界各地。

※ 拓展学习

   Bad news spreads quickly.

   Word spread that there was a variant virus of H1N1.

   The bird spread its wings and was about to fly.

   She spread a new sheet over the bed.

   Please spread the paint evenly.

   It’s better for you to spread the honey on the bread.

   Xi’an is spreading to the north and the west.

   The forest spreads from here to the foot of Qinling mountains.

※ 重点操练

   Soon the news ________ across the whole country, exciting the people. (传开)

3、prevent  词性:          词义:

 ※ 原句再现

They are putting too much carbon dioxide into the atmosphere, which prevents heat from escaping from the earth into space.   它们向大气层排放大量的二氧化碳,这阻止热量向外层空间释放。

※ 拓展学习

   We must prevent the news from spreading.

   Nothing can prevent him from going away.

   Man is finding ways to prevent natural disasters.

   Vitamin C is supposed to prevent colds.

   Teachers now have no ways to prevent students’ listening to MP3 in class.

   H1N1 flu prevented his coming to school.

 ※ 重点操练

   Nobody can keep the naughty boy ______.(被惩罚)

4、depend   词性:          词义:

 ※ 原句再现

So whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved.

   所以,在未来几百万年时间里生命能否在地球上延续取决与这个问题能否得到解决。

※ 拓展学习

   We students are depending on our parents now.

   The town depends entirely upon tourism.

   I mainly depended on his helping, but he didn’t turn up.  

There was no bus now, so we had to depend on our legs.

   Whether we will hold the sports meeting depends on the weather.

   The price depends on the quality.

   It all depends on how you tackle the problem.

 ※ 重点操练

   I’m planning to hold a party in the open air, but I can make no guarantees because it _____ the weather.(取决于)

5、block   词性:          词义:

 ※ 原句再现

As a result of this event, a great dust cloud formed in the sky blocking out the sunlight.

   这个事件的结果就是,天空形成了一团团的灰尘,遮蔽了阳光。

※ 拓展学习

   That wall blocks out all the light.

   Block out the unimportant part on the picture.

   A big stone has fallen from the mountain and blocked the road.

   The pipe of heat must be blocked up.

   The wet weather blocked our plan for a trip.

   The other player tried to block my advance, but he failed.

 ※ 重点操练

   Her boss prefers her to ______ her annual vacation time.(制定出)

6、off  词性:          词义:

 ※ 原句再现

Then we were off. 然后我们就出发。

※ 拓展学习

The bird flew off.

I must dash off. 

Are you really off?

I must be off now. 

Cut the end off. 

Mind you don’t fall off. 

Summer is only a week off.

They live two blocks off.

The manager gave the staff a day off.

If you finish your work today, you can have tomorrow off..

※ 重点操练

The front cover of the novel has been torn ______.(掉)

7、mass    词性:          词义:

 ※ 原句再现

If you are right, my mass will be less than on the earth because the moon is smaller and I will be able to move more freely.

   如果你正确,我的体重要比在地球上小,因为月球比地球小,这样我就能更自如活动了。

※ 拓展学习

   In cold winter, the pond will become a solid mass of ice.

   I found a mass of concret on the bed.

   After harvest, we will have a mass of rice.

   I have masses of work to do today.

   The masses are the true makers of history.

   The party should rely on the masses.

   The work is well done in the mass.

※ 重点操练

   She says she doesn't like children in the ______. (总的说)

8、now that   词性:          词义:

 ※ 原句再现

Walking does need a bit of practice now that gravity has changed.

由于引力变化了,步行都需要练习。

※ 拓展学习

Now that you have arrived, let’s start the meeting.

Jenny didn’t want to do that because her parents were very strict with her.

He didn’t answer my question only because he couldn’t.

It is because he is ill that he is absent.

Since the two children were brought up in the south, they have never seen snow.

As it was getting very late, we soon turned back.

   We must start early, for we have a long way to go.

※ 重点操练

   _______ I am free, I can enjoy music for a while. (既然)

9、break out   词性:          词义:

 ※ 原句再现

We watched, amazed as fire broke out on the outside of the spaceship as the earth’s gravity increased.

    我们惊奇的看着,随着地球引力的增加,宇宙飞船的外层燃烧起火。

 ※ 拓展学习

    The economic crisis broke out first in the United States.

    The First World War broke out in 1914.

    Flu usually breaks out in winter.

    A big fire broke out in the factory last night.

 People listening to the joke broke out laughing.

 ※ 重点操练

    ______ your best wine to welcome me.(拿出)

10、warn  词性:          词义:

 ※ 原句再现

The spaceship warned Li Yanping and me to be ready as we were approaching the “black hole”.

    当我们离黑洞越来越近的时候,宇宙飞船提醒我们让我们做好准备。

    ※ 拓展学习

    Black clouds warned us of the approaching storm.

    I warned him about the danger of climbing the mountain.

    The teacher warned us to wear warm clothes tomorrow.

    The guide warned us not to swim in the river.

    She warned me against being over-confident.

    Father often warns me against driving fast.

    I warn you that if you do this again you will be punished.

Haven’t I warned you that it was not allowed?

※ 重点操练

I must ______ you that my patience is almost at an end.(警告)

二、操练巩固

I、翻译下列词语

1、理论

 

2、及时,终于

 

3、下蛋

 

4、高兴,振奋

 

5、生产,分娩

 

6、系统,体系,制度

 

7、猛烈的,激烈的

 

8、轮到某人

 

9、爆发

 

10、阻止

 

11、天文学

 

12、大气层

 

13、以……为起点

 

14、四面八方

 

15、气候

 

16、谜,难题,(使)迷惑,

 

17、冷却

 

18、掌握……的技巧/诀窍

 

19、在表面

 

20、地心引力,重力

 

21、既然

 

22、密切注视,当心

 

II. 根据语境填写适当的词
第一组:

force, disappoint, system, surface, harmful, astronomy, gravity, publish, atmosphere, planet

 

 

1 His words _________ me and I lost hope for him.
2 He seems very honest on the _________ but actually he is not reliable.
3 There is still a lot that scientists don’t know or explain in the field of _________.
4 He posted his newly-written novel to a _________ house but received no reply.
5 There are eight _________ in the solar system.
6 When I entered the meeting room I sensed the _________ was unusual and everyone kept silent.
7 Do you know about Newton’s law of ________?
8 Drinking alcohol is ________ to people’s health.
9 In the Chinese education _________ exams are laid in the most important place.
10 Never _________ anyone to do anything he doesn’t want to.

第二组:

telescope, development, oxygen, violent, presence, gradually, mass, spread, explode, solid, exist, float

11 With the _________ of science and technology people can enjoy the modern civilization fully.
12 Children should not be allowed to watch any ________ movie.
13 _________, he began to understand how silly he was to have done such a thing.
14 With the Internet news from every part of the world _________ rapidly.
15 Many of the students think that _________ geometry is too hard to learn.
16 A plastic bag was seen ________ in the water.
17 The scientists say that dinosaurs _________ millions of years ago but then died out suddenly.
18 A bomb _________ near the doorway of the restaurant from across the street.
19 When you are on the moon your ________ will be less than on the earth.
20 He sat in the front row and hardly noticed my ________.
21 Man cannot live without ________.
22 With the help of a ________ you can observe lots of stars in the sky.

III. A核心词汇 根据句子意思写出括号内所给中文的正确形式。

1.Do you think our education____________(制度)needs improving?

2.The____________(气候)of southern Florida attracts thousands of tourists each winter.

3.Without practice there would be no____________(理论).

4.The hen was old and it stopped____________(下蛋)eggs.

5. The idea____________(存在)only in the minds of us young people.

6.Professor Li has solved the____________(难题) and everyone is cheering.

7.Mars’__________(万有引力)is only about 38% of Earth’s.

8.Raising your child to tell the difference between right and wrong is one of the ________(基本) tasks of parenthood.

9.用harm的适当形式填空

(1)Air pollution will get worse and this will be ____ to people,for example,it can cause cancer.

(2)Rubbish can be changed into____________ things.

(3)Don’t ____________ your eyes by reading in the dim light.

10.Last night we had a discussion,which became more and more ____________.Finally we reached an agreement that we will never use ____________ whatever happens.(violent)

B 选用下列单词或短语的适当形式完成下面短文:(每空只填一词)

ceremony  sence  wish  patiently  as  show  learn  remember take place   bring up   go through   put on 

Now I'd like to tell you something that 1)______ ______ in my school yesterday. In the afternoon we held a growing-up 2)__________ for our coming 18-year-old birthday. At first we made an oath that 3)____ grown-ups we should have a 4)_______ of duty for our society from now on. Then we 5)_________ our thanks to our parents who had 6)_____ _________ hardships to 7)_______ us ____ and teachers who have been educating us 8)_________. And our teachers also gave us cards expressing their good 9)________ to us. Finally, we 10)_____ _____ wonderful performances, singing and dancing. We 11)________ a lot from the activity. I think it's very important for us. I will 12)___________ the day in my life.

IV. 根据本单元课文内容填写恰当的单词(每空一词)

The    ①    of the earth produced water vapour, which turned into water when the earth    ②    down, Water allowed the earth to dissolve harmful gases into the oceans and seas. That made it     ③    for life to begin to develop. The   ④     of small plants     ⑤     the development of early shellfish and all   ⑥     of fish. Many millions of years   ⑦     the first green plants began to appear on land. Later land animals appeared. Some were insects. Others , called amphibians, were able to live on land     ⑧    in the water. Finally, some small clever animals appeared and spread all over the earth. But they treat the planet in an     ⑨    way, and the earth becomes too    ⑩    .

V. 根据括号内所给的提示翻译下列句子(用倍数表达句式翻译1-5)。

倍数的表达方式。

(1)“A+倍数+形容词或副词的比较级+than+B”,表示“A比B大(长、高、宽等)多少倍”。

(2)“A+倍数+as+形容词或副词的原级+as+B”,表示“A是B的多少倍”。

(3)“A+倍数+the size/height/length/width,etc.+of+B”,表示“A是B的多少倍”。

(4)A+倍数+what从句。

1. 我们图书馆里的书比你们图书馆里的书多五倍。

2. 我们的城市今年的降雨量是去年的两倍。(experience rain)

3. 现在的产量是10年前的3倍。

4. 彼得的夹克衫看起来与杰克的一样,但是却是他的价钱的两倍。

5. 十年前我们村的人口是他们村的两倍。

6. 既然你得到了一次机会,不妨充分利用它。(now that)

7. 一旦他下定决心,谁也阻止不了他执行这个计划。(Once, prevent …from…)

8. 当轮到我时,我激动得都说不出话来了。(too … to)

9. 那家公司因他不按时上班而解雇了他。(fire sb for)

10. 多年来科学家们一直试图解开这一谜团。(solve this puzzle) 

Unit Four

一、重点导学

1、Feed  2、spreads  3、from being punished  4、depends on  5、block out  6、off  7、mass  8、Now that  9、Break out  10、warn

二、操练巩固

I、

1、theory   2、in time   3、lay eggs  4、cheer up  5、give birth to  6、system  7、violent  8、in one’s turn   9、break out   10、prevent…from   11、astronomy   12、atmosphere   13、begin with   14、in all directions   15 climate 16、puzzle  17、cool down  18、get the hang of  19、on one’s/the surface  20、gravity  21、now that   22、watch out 

II.

第一组: 1 disappointed  2 surface  3 astronomy  4 publishing  5 planets  6 atmosphere  7 gravity 

8 harmful  9 system  10 force 
第二组:11 development  12 violent  13 Gradually  14 spreads  15 solid  16 floating  17 existed 

18 exploded  19 mass  20 presence  21 oxygen  22 telescope
III.

A 1.system 2.climate 3.theory 4.laying 5.exists 6.puzzle 7.gravity 8.fundamental 9.(1)harmful,(2)harmless (3)harm 10.violent;violence

B  1) took place 2) ceremony 3) as 4) sense 5) showed 6) gone through 7) bring; up 8) patiently 9) wishes

10) learned 11) put on 12) remember

IV.  ①explosion  ②cooled  ③possible  ④arrival  ⑤encouraged  ⑥sorts  ⑦later  ⑧as well as  ⑨unfriendly  ⑩ polluted

V.

1.There are five times more books in our library than in yours.

2. Our city has experienced twice as much rain this year as it did last year.

3. The production now is three times what it was ten years ago.

4. Peter’s jacket looked just the same as Jack’s ,but it cost twice as much.

5. Ten years ago the population of our village was twice as large as that of theirs.

6. Now that you’ve got a chance,you might as well make full use of it.

7. Once he has made up his mind,no one can prevent him from carrying out the plan.

8. When it is my turn,I am too excited to speak.

9. The company fired him for not coming to work on time.

10. Scientists have been trying to solve this puzzle for years.

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