上海社保,讲义单元解说(含课文音频):必修三Unit4 Astronomy:the science of the stars,仙界归来

体育世界 · 2019-04-05

今日,要和咱们共享的是人教版必修3Unit4常考单词、高频短语和写作句式,并附有课文音频学起来哦!

Unit4 Astronomy:the science of the stars

常考单词、高频短语和写作句式

Ⅰ. 常考单词必背

1.harmfuladj. 有害的

It's harmful to your eyes to read books in the bus.

在公共轿车上看书对你的眼睛有害。

[快速闪记]

(1)be harmful to... 对……有害

(2)harmless adj. 无害的

harm n. 危害;损伤 v. 对……有害;损伤;危害

2.existvi. 存在;生计

Nothing exists on the moon as there is no water and no air.

月球上没有东西生计,由于那里没有水和空气。

[快速闪记]

(1)e盛然蜜园xist in 存在于 

exist on 靠……生计

There exist(s)/existed... 某地有/存在……

(2)existence n. 存在;生计

3.puzzle n. 谜;难题 vt.&vi. (使)利诱;(使)尴尬

The puzzled look on her face suggested she was puzzling over the puzzling math problem.

她困惑的表情暗示了她正在考虑那个令人困惑的数学问题。

[快速闪记]

(1)be in a puzzle 感到困惑;不知如何是好

puzzle about/over 冥思苦索;苦苦思索

(2)puzzling adj. 令人利诱的

puzzled adj. 感到利诱的

4.pulln. &vt. 拉(力);拖;牵引力

She pulled his sleeve to get his attention.

她拉拉他的同志故事袖子以引起他的留意。

[快速闪记]

pull down 炸毁、推翻、撤除

pull in 进站停靠;驶向路旁边(或某处)停靠

pull out 离站;(使)摆脱困境

pull through 恢复健康;渡过危机

5.massn. 质量;团;块;很多;(复)大众

I have masses of work to do.

我有很多作业要做。

Ⅱ. 高频短语必会

1.in time 及时;总算

Lucky for him,he was just in time for the bus.

走运的是,他及时赶上了公共轿车。

[快速闪记]

on time 准时;准时 

at a time 一次;每次

at one time 从前;一度;一起

at times 有时;偶然 

at no time 决不

in no time 马上;马上

2.give birth to 发作;临产

To our great joy,my sister-in-law gave birth to a baby boy.

使咱们大为快乐的是,我嫂子生了个男孩。

[快速闪记]

at birth 出世时

by birth 天生地;生来;在血缘上

3.in one's turn 轮到或人;接着

When it was in my turn,I was too excited to speak.

当轮到我时,我激动地都说不出话来了。

[快速闪记]

in turn 顺次;轮番;因此;因此

by turns 轮番;顺次

take turns to do sth/in doing sth 轮番做某事

It is sb 's turn to do sth 轮到或人做某事

4.prevent...(from) 阻挠;阻挠

No one can prevent me(from) going there.

没有人能够阻挠我去那儿。

[快速闪记]

(1)protect...from/agaiwwwwwwnst... 维护……不受……侵袭

(2)近义词:stop...(from) doing...;keep...from doing...

5.cheer up 感到快乐;感到振作

I wrote that song just to cheer myself up.

我写那首歌仅仅为了让自己快乐。

[快速闪记]

cheer sb on 为或人加油

6.now that 已然

Now that everyone is here,let's begin our meeting.

已然咱们都到齐了,咱们就开端开会吧。

[快速闪记]

引导原因状语从句的连词:now that,since,because,as,considering (that),in that等。

7.break out 突发;迸发

Something unexpected always breaks out in this area.

在这一区域总有意想不到的工作发作。

[快速闪记]

break up 闭幕;打碎

break away from... 脱离……

break down 打破;崩塌;(精力、身体)垮掉

break in 进入;插嘴

break into 强行进入(某处);忽然开端(大笑、喝彩等)

8.watch out 亲近凝视;留神;防范

You should watch out for John,who often makes fun of周芷兰 others.你应该防范约翰,他常常嘲笑他人。

[快速闪记]

watch over 照看;看守 

look out 留意,留神

take care 留意,留神 

be careful 留意,留神

Ⅲ. 写作句式必学

1.The earth became so violent that it was not clear whetherthe shape would lastor not.

地球(开端)变得剧烈动乱,不知道这个固体形状是否会持续存在下去。

2.What is even more important is thatas the earth cooled down,water began to appear on its surface.

更为重要的是当地球平静下来时,水开端在地球表面呈现了。

3.This produced a chain reaction,which made it possible for life to develop.

这就发作了一个连锁反应,使生命的开展成为可能。

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

所以,在未来的数百万年中,生命能否在地球上连续取决于这个问题能否得到解决。

5.It was not immediately obvious thatwater was to be fundamental to the development of life.

水关于生命的开展会起到关键作用这一点并没有当即明朗化。

6.But when I tried to step forward,I found I was carried twice as far ason the earth and fell over.

而当我试着向前跨步的时分,我发觉我被送出去很远,脚步的跨度竟是在地球上的两倍,因此我摔倒了。

短文语法填空,然后背诵短文,熟记本单元的要点词汇。

Explore MKII

MKII,a planet__1__(billion) of kilometers away,is the origin of life in manyreligions. Physicists have proved the theory__2__ its gentleclimateand the pullof its gravity are similar to __3__ earth's. And astronomers have found that oxygen atoms and carbon dioxide,which are fundamentalto life,exist in its atmospherethrough satellites. __4__(cheer) upby this news,biologists,in their turn,began to do some research to remove people's puzzles—Now thatthere are some suitable conditions,does life really existon this globe?Do they multiply by layinheartbeats是什么意思g eggsorgiving birth __5__ babies?

Last month,a spaceship__6__(send) there. It's a pity that this mission failed.Unlikethe earth,MKII is a much __7__(young) planet. Thus,masses of __8__(harm)acid clouds floateverywhere causing violent chain reactionsto break out. These clouds not only __9__(block) out the pilots' sight but also damaged the enginesystem. Luckily,the pilots watched outcarefully and prevented the spaceship from __10__(crash) in time.

答案:

1. billions 2. that 3. the 4. Cheered 5. to

6. was sent 7. younger 8. harmful 9. blocked 10. crashing

必修3Unit4同步常考常识点操练

Ⅰ. 单句语法填空

1.It is obvious __what__ the local government can do to protect the environment for future generations.

解析:句意:为了子孙后代,当地政府在维护环境方面所能做的工作是清楚明了的。It为方式主语,________ the local government can do to protect the environment for future generations是真实的主语,该主语从句短少宾语,且标明物,故填what。

2.New technologies have made __it__ possible to turn out new products faster and at a lower cost.

解析:考察it作方式宾语。

3上海社保,讲义单元说明(含课文音频):必修三Unit4 Astronomy:the science of the stars,仙境归来.All possible means __have_been_taken__(take) to prevent the river __being_polluted__ (pollute).

解析:考察主谓共同和非谓语动词。

4.If they win the final tonight, the team are going to tour around the city __to_be_cheere上海社保,讲义单元说明(含课文音频):必修三Unit4 Astronomy:the science of the stars,仙境归来d__(cheer) by their enthusiastic supporters.

解析:考察非谓语动词。

5.The meeting was held in a li肖克和vely atmosphere __where__ everybody felt to share his ideas.

解析:考察定语从句。从句中短少地址状语,故填where。

6.During those four years, he worked day and night, thus __improving__(improve) his theory gradually until it was complete.

解析:考察ving方式作成果状语。

7.Those reports included one case, __where/in_which__ a fire broke out and destroyed two cars,although there were no injuries.

解析:考察非限制性定语从句。

8.I suppose by the time I come back in ten year's time all these old houses will __have_been_pulled__ (pull) down.

解析:考察时态和语态。

9.Sometimes he found __it__very hard to fall asleep at night, so he went to see the doctor.

解析:考察it作方式宾语。

10.Susan made __it__ clear to me that she wished to make a new life for herself.

解析:本题考察代词的运用。句意:苏珊清楚地跟我标明她期望为自己发明新的日子。剖析语句结构能够看出,该句中包括一个that引导的从句,并且依据语境可知,that从句的内容便是苏珊向我标明的工作,所以后置的that从句实践上是made的真实宾语,故用方式宾语it指代that从句。

11.The manager wants to see changes in the company, and I am sure he will __in__ time.

解析:句意:司理想要看到公司的改动,我坚信他早晚会看到的。in time“及时;最终,早晚”,契合题意。

12.It remains to be seen __whether__ the newly formed committee's policy can be put into practice.

解析:本题考察名词性从句。句意:那依然得看新构成的委员会方针能否付诸实践。It在此为方式主语,故seen后为真实的主语从句,又由remains to be seen可知存在不确定的意思,所以用whether是否。

13.The top leaders of the two countries are holding talks in a __friendly__(friend) atmosphere.

解析:句意:两国高层领导人在友爱的气氛(atmosphere)中进行谈判。

14.—Thank God you're safe!

—I stepped back, just in time __to_avoid__(avoid) the racing car.

解析:答语句意:我退后了一步,正好避开了奔驰的轿车。in time to do sth.“正赶上做某事”。

15.It's said that the power plant is now twice __as__ large as what it was.

解析:本题考察倍数的表达法。句意:听说这个发电厂现在是曩昔的两倍大。“倍数+as...as”是倍数的表达法,意为“是……的几倍”,其间as...as之间要用原级。

Ⅱ. 完结语句

依据语境和汉语提示完结下列英语语句。

1.An exceptionally big fire __broke_out__(迸发) at midnight.Luckily, firefighters arrived just __in_time__(及时) for the rescue.

2.Atmosphere __blocks_out__(挡住) a large amount of harmful light from space.

3.__Now_that__(已然) we have finished the design, the company, __in_its_turn__(轮到), will do the construction.

4.__On_a_global_scale__(在全球范围内), AIDS may 歪嘴症well become the leading cause of infant death.

5.He, as well as his sister, __was_brought_up__(被抚育) in the mountainous area where education facilities are far from satisfactory.

6.主张采纳办法来阻挠工厂排放有害气体。

__It_is_suggested_that__measures should be taken to prevent factories from discharging harmful gases into the air.

7.地球变暖是否加重取决于咱们的活动是否发作更多的二氧化碳。

Whether the global warming will become more serious __depends_on_whether__ our activities will produce more carbon dioxide.

8.大部分依据被毁了,不可能证明这种食物是有毒的了。

Most of the eviden牧夫座空泛ce is destroyed, __which_makes_it_impossible__to prove that the food is poisonous.

9.证人的描绘太难以置信,没有任何实践价值。

The witness's deions were __too__ unbelievable __to__ 频组词be of any real value.

10.没有什么上海社保,讲义单元说明(含课文音频):必修三Unit4 Astronomy:the science of the stars,仙境归来比得上一句诚意的问好更令人愉快了。

There is nothing __more_pleasant_than__ a cheerful word of greeting.

Ⅲ. 单句改错

1.She has got into the bad habit of reading in the bed, which is harmful for her eyes.

__for→to__

2.All theories come from practice and in return serve practice.

__return→turn__

3.The twin brothers stood under the tree, puzzling and saying nothing.

__puzzling→puzzled__

4.The sun heats the 戴君仪earth, which makes possible for plants to grow.

__makes后加it__

5.The new stadium being built for the next Asian Games will be three times as larger as the present one.

__larger→large__

6.You'll succeed on time because you are always working hard.

__on→in__

Ⅳ. 教材原句

1.__What__is even more important is that__as__the earth cooled down, water began to appear on its surface.

解析:第一空考察主语从句,从句中短少主语,故填what;第二空考察状语从句,结合语意可知此处标明“随同”。

2.According to a widely__accepted__(accept) theory, the universe began with a “Big Bang”__that/which__threw matter in all directions.

解析:第一空考察非谓语动词作定语润饰theory,且accept与theory之间为被迫联系,故填accepted;第二空考察定语从句,从句中短少主语且指物,故填that/which。

3.It was not immediately obvious__that__water was to be fundamental__to__the development of li风险的弟弟fe.

解析:第一空考察主语从句,it为方式主上海社保,讲义单元说明(含课文音频):必修三Unit4 Astronomy:the science of the stars,仙境归来语,that引导的从句是真实的主语;第二空考察固定短语,be fundamental to 意为“是……的根底”。

4.As a result__of__this, many scientists believe the earth may become too hot __to_live__(live) on.

解析:第一空考察固定短语;第二空考察“too...to...”结构。

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

解析:考察主语从句。从句中不缺主语和宾语,结合语意可知答案是whether。

6.__What__many scientists believe is that the continued presence of water allowed the earth to dissolve__harmful__ (harm) gases and acids into the oceans and seas.

解析:第一空考察主语从句,从句中短少宾语;第二空考察词形转化,润饰名词,故填形容词harmful。

7.They are putting too much carbon dioxide__into__the atmosphere,__which__prevents heat from escaping from the earth into space.

解析:第一空考察介词,结合语意可知填into;第二空考察非限制性定语从句,从句中短少主语且指物,故填which。

8.Leav超级皇帝体系ing the moon's gravity__was/is__(be) not as painful as lregestereaving the earth's.

解析:考察主谓共同。动名词作主语时谓语动词用奇数。

Ⅴ. 语篇填空

No one knows exactly how the earth began, as it happened so long ago. However, according to a ①__widely__(wide) accepted theory, the un79piverse began ②__with__ 梦怡a “Big Bang” that threw matter in all directions. After that, atoms began to form and combine to create stars and other bodies.

For several billion years after ③__the__ 上海社保,讲义单元说明(含课文音频):必修三Unit4 Astronomy:the science of the stars,仙境归来“Big Bang”, the earth was still just a cloud of dust. What ④__it__ was to become was ⑤__uncertain__(certain) until between 4.5 and 3.8 billion years ago ⑥__when__ the dust settled into a solid globe. The earth became so violent ⑦__that__ it was not clear whether the shape would last or not. It ⑧__exploded__(explode) loudly with 上海社保,讲义单元说明(含课文音频):必修三Unit4 Astronomy:the science of the stars,仙境归来fire and rock.They were in time to produce carbon, nitrogen, water vapour and other gases, ⑨__which__ were to make the earth'上海社保,讲义单元说明(含课文音频):必修三Unit4 Astronomy:the science of the stars,仙境归来s atmosphere. What is even more important is that as the earth cooled down, water began to appear ⑩__on__ its surface.

Ⅵ. 论题写作

用本单元所学常识完结下列语句,并依照逻辑连成短文。

1.火星上有生命吗?不知道。咱们能成功登上火星吗?那彻底取决于科学技术的开展。

Is there life on Mars? We don't know.Can we land on Mars successfully? That all__depends_on__the development of science and technology.

2.到目前为止,咱们尽管对火星有点了解,但底子不行。火星上几乎没有氧气,正午的温度可能在50度左右,而晚上则在零下100度左右。这阻挠咱们在那里日子。

Until now we__have_known_a_little_about__Mars,but that's not enough.__There_exists__almost no oxygen on Mars.It might be about 50 degrees above zero at noon and 100阿喜妹 degrees below zero at night and it__prevents_us_from_living_there__.

3.已然火星与地球彻底不同,假如咱们方案有朝一日去火星,咱们就要带上氧气、食物、衣服和居处。

__Now_that__Mars is quite__different_from__our临清刘泰龙 earth,if we are to go to Mars__in_time__, we should take along our own oxygen, food, clothing__as_well_as__shelter.

组篇公式:将句2改为定语从句。

答案:

Is there life on Mars? We don't know.Can we land on Mars successfully? That all depends on the developme愚泉记nt of science and technology. Until now we have known a little about Mars, but that's not enough. There exists almost no oxygen on Mars.It might be about 50 degrees above zero at noon and 100 degrees below zero at night, which prevents us from living there. Now that Mars is quite different from our earth, if we are to go to Mars in time, we should take along our own oxygen,food,clothing as well as shelter.

高中英语

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