选修8Unit2Cloning.doc

课时作业（三十七） [选修8 Unit 2 Cloning]

[限时：30 分钟]

I .单项填空

1．I have no idea ______ the journalist could have got his information from.

A ．that

B ．why C．which D ．where

2．One reason for her preference for city life is ______ she can have easy access to places like shops and restaurants.

A ．that

B ．how C．what D．why 3．Along with the letter was his promise he would

visit me this coming Christmas.

A ．which

B ．that C．what D．whether

4．People take naps at noon in warmer climates ，_______ the heat makes work difficult in the early afternoon.

A ．which

B ．what C．where D ．when

5. [2011 课标全国卷] William found it increasingly difficult to read , for his eyesight was beginning to ________ .

A . disappear

B . fall

C. fail

D. damage

6. As is well known ，everyone is forbidden ________ in buses ，regardless of what they are.

A . to smoke B. smoking

C. to be smoking D . to smoking

7. —Please sit down and I'll cook you some coffee.

— _______ .Let's come to the point first.

A . You are welcome B. You needn't do so

C. Please don't bother

D. You are indeed too polite

8. Last month，thousands of workers in that city went on _______ strike ，demanding lower taxes and _______ end to cutting staff members.

A . a；the B. a；an C. / ；an D. /；the

9. After the quarrel ，I tried all my best to remove the misunderstanding between us，but all my efforts seemed _______ .

A . in vain B. in case

C. in time D . in trouble

10. It is _______ great honor for China to develop _______ fastest computer in today's world.

A ．a；the B．an；the

C．an；an D ．a；a

11．They had intended going into the country for the day ，but were _______ by reports of traffic jams.

A ．put away

B ．put off

C．put up D．pay down

12．There are laws in some countries which forbid advertisements _______ at inappropriate times and places.

A ．being shown

B ．shown

C．show D ．to have shown

13．The way he did it was different _____ we were used to.

A ．in which

B ．in what

C．from what D ．from which

14．_______ was expected，only five people turned up at the party，_________________ disappointed the hostess very much.

A ．As；what B．As；which

C．It ；that D．What；which

15．________ afterwards ，the police stopped the car and both men were arrested.

A ．Immediately

B ．Promptly

C．Deliberately D ．Shortly

n .阅读理解

People have been acting like people —in other words ，they've been making tools ，creating ceremonies，and sharing food—for a long time. That's the conclusion of a recent study from South Africa's southern coast.

There，in a cave lying above the sea，researchers from Arizona State University have found evidence that humans were behaving in surprisingly complex ways as early as 164,000 years ago. Our species，Homo sapiens ，appeared an estimated 200,000 years ago.

The cave held three important clues about the behavior of these Stone Age people.

First ，the researchers found the remains of all kinds of shellfish. The people who lived in the cave probably collected these creatures from rocky shores and tide pools and brought them to the cave to eat.

The researchers propose the early Africans moved to the South African coast between 195,000 and 130,000 years ago. Around that time ，the climate inland turned relatively cold and dry. Therefore ，there were fewer plants and animals to eat away from the coast.

When these ancient people moved to the coast ，they probably experienced a major cultural shift，the researchers suspect. That's because observations of modern hunter －gatherer societies suggest that men are more likely to hunt for big animals when people live inland. On the coast ，women play a more important role in providing food by gathering plants and shellfish.

As for the second clue ，the researchers unearthed 57 pieces of reddish pigment（颜料）. The researchers think that the cave habitants used the paint for coloring their bodies or for other ceremonies. Symbolic behavior is a clearly human feature.

Fin ally , the search discovered over 1,800 stone tools in clud ing well —crafted blades（刀片）. These blades came in various sizes. The smallest were just less than a half －inch wide. Ancient people may have attached these blades to the end of a stick to make spears or other tools.

16. What is the passage mainly about ?

A . Ancient cave behavior.

B . New evidenee of ancient life.

C. The history of human beings.

D . Human behavior's development.

17. The early Africa ns moved to the South Africa n coast with the main purpose of _______ .

A . avoiding badly cold and dry weather

B . seeking the cultural development

C . seek ing

eno ugh food to live on D . livi ng a n ewer and better life

18 . Accord ing to the passage, the cave habitants _______ .

A . knew how to use colors for decorati on

B . made a liv ing largely by hunting ani mals

C . only could made tools with rough blades

D . could hunt for fish in the sea with ships

19 . After the early Africa ns moved to the coast , what probably happe ned to their culture ?

A . Women's role was as important as men's role in families.

B . They were no Ion ger used to livi ng inlands but liv ing on the coast.

C . Men's role was more importa nt tha n wome n's role in earning food.

D . Wome n's role was more importa nt tha n men's role in earning food.

20 . The new discoveries in the cave should support the theory that ______ .

A . modern human behavior developed smoothly fast from the ancient time

B . moder n huma n behavior developed slowly from the an cie nt time

C . South Africa is the birthplace of the earliest huma n beings in the world

D . moder n huma n behavior is largely the same as ancient huma n behavior

川.阅读表达

阅读下面短文并回答问题，然后将答案写到相应的横线上（请注意问题后的词数要求）

。

[1] lt's safe，it's simple，and it works : Drinking right amounts of water can really help you lose weight，new research shows.

[2] ln what researchers claim is the first —ever trial of the effect of water consumption on weight loss, scientists from Virginia Tech found that dieters who started each meal with two glasses of water lost nearly five pounds more , on average, than dieters who did not , over the course of 12 weeks. There's no shortage of clear evide nee about how water might work to con trol your appetite （食欲）.It _____________________ so you don't eat so much ; it keeps down your thirst so that you don't turn to calorie —rich sodas or juices. But until now , the researchers say there has been no true evide nee that water's appetite —con trolli ng ben efits ever tran slate into actual weight loss. Now there is. In the 12 —week study period , dieters instructed to drink water with every meal lost an average of 15.5 poun ds; dieters give n no in struct ions lost , on average, just 11 poun ds.

[3] Perhaps the most surpris ing thing about the finding is how little we still know about healthy water con sumpti on in gen eral. I n fact , although doctors and public health authorities regularly remind us to drink more water , very few studies give any in sight into what our ideal qua ntity may be.

[4] The new results today suggest that many people could indeed stand to drink a little more

water than they do. But if you're looking to lose weight ，be aware that it is actually possible to drink too much water ，and you probably won't help matters any by drinking too much water at a time. In extreme cases ，it can even be deadly. A couple of glasses with each meal ，however ，should be no problem at all for a healthy person.

21．What is the main idea of the text ？(no more than 8 words)

22．What might be able to control your appetite ？(no more than 3 words)

23．Fill in the blank in Paragraph 2 with proper words. (no more than 3 words)

24．Why should we avoid drinking too much water at a time ？(no more than 6 words)

25．What does the word “ it” (Line 1 ，Paragraph 1) probably refer to ？(no more than 6 words)

课时作业（三十七）

.1.D

考查同位语从句。根据语意“我不知道那位记者从哪里得到的信息”可知，此处应用where 引导同位语从句，解释idea的具体内容，所以这里选D项。

2. A 考查表语从句。that引导的表语从句，而且不可以省略。

3．B 考查同位语从句。句意：他在信中承诺：在即将到来的圣诞节来看望我。由句子结构可以看出promise后的从句非常完整，不缺少任何句子成分；由题意可知该从句用以说明promise 的内容，所以可判断出是一个同位语从句，因为是在陈述一个事实，故引导词要用that。

4. C 考查定语从句。先行词warmer

climates在从句中作地点状语（表示抽象的地点），故用where引导。

5. C

考查动词辨析。句意：威廉发现读书越来越难，因为他的视力正逐渐变弱。disappear “消失”；fall “落下，（数量、数目）下降”；fail “（指健康）衰退，变弱，消失”；damage毁坏。

6. A 考查forbid 的用法。这里考查的是forbid sb. to do sth.的被动语态。句意：众所周知，无论是谁，在公共汽车上都是禁止吸烟的。

7. C 考查交际用语。C项意思为“别费心了，不必要了”，与Let's come to the point（让我

们言归正传吧）相吻合。A项“不用谢”；B、D两项语气太生硬，有失礼貌。

8. C 考查冠词用法。第一空后名词

strike与空前介词on构成固定短语go on

strike,意为“罢工”，故用零冠词；第二空后名词是可数名词的单数，表泛指，前加不定冠词，故选C。

9. A 考查固定短语辨析。句意：争吵过后，我尽力去消除我们之间的误会，但是我的努力看起来都白费了。in vain “白费地，徒劳无益地”；in case “免得，以防”；in time

“及时，迟早”；in trouble “处于困境”。故选A。

10. A

考查冠词用法。honor指的是具体的一件事，所以前面要用不定冠词，第二空修饰的是最高级，所以用定冠词the。句意：中国研发出世界上速度最快的电脑是一个极大的荣誉。

11. B 考查动词短语辨析。put

off意为“推迟，取消”。句意：他们本来打算那天到乡下去，但听说交通堵塞就作罢了。put away 放好；put up举起，张贴，建造，提供（住宿）；put down放下，写下。

12. A 考查forbid doing sth ?的用法。句意：有些国家的法律禁止在不适当的时间和地点播出广告。由于advertiseme nts与动词show之间为被动关系，所以选A。

13 . C 考查介词的选择和宾语从句。句意：他做这件事的方式和我们以前所习惯的方式不同。“

与... 不同”用be different from…结构，what引导的宾语从句，相当于the way that…；which也可以引导宾语从句，但是表示疑问，而此处不表疑问。

14 . B

考查非限制性定语从句的关系词。第一空是as引导的非限制性定语从句（可放句首）；第二空是which引导的非限制性定语从句。句意：正如人们所预料的只有5人参加了聚会，这令女

主人很失望。

15．D 考查副词辨析。shortly “很快，不久”。句意：过了没有多久，警察拦住了那辆汽车，两个人都被逮捕了。imme diately立刻，马上；promptly敏捷地；deliberately故意地。均不合句意。

n ?在南非南部海岸一个洞穴里所发现的古代非洲人的行为说明：人类自古以来一直就像人一样地生活，即一直制造工具，创立仪式和分享食物，最后经过漫长的历史发展到今天。

16．A 主旨大意题。文章首先提出：古代人类一直就像人那样地生活，接着指出：在南非南部海岸一个洞穴里发现的古代非洲人的行为线索就说明这一点，之后第三段提出The cave held three important clues about the behavior of these Stone Age people.下文便介绍The cave habitants'

behavior”，由此判断全文的主要内容是：Ancient cave behavior。B项过于抽象，C、D两项与文章内容不符合。

17．C 细节理解题。根据第五段Around that time, the climate inland turned relatively cold and dry. Therefore, there were fewer plants and animals to eat away from the coast.可知，古代非洲人是因为内陆气候相对寒冷干燥致使能吃的动植物越来越少才不得不南迁至海岸，由此可知，其南迁的主要目的是为了寻找食物求生存。故选C。

18．A 细节理解题。根据倒数第二段The researchers think that the cave habitants used the paint for coloring their bodies or for other

cerem onies.可知，洞穴人会用颜料装饰，故选A。非洲人南迁才成了洞穴人，捕猎是他们南

迁成为洞穴人之前的生活方式，故排除 B ; C项错在"only…rough

blades”；D项内容在文中未提到。

19. D 细节理解题。根据第六段…men are more likely to hunt for big animals when people live inland. On the coast, women play a more important role in providing food by gathering plants and shellfish. 可判断D 项正确。

20. B 推理判断题。由第一段可知，在南非南部海岸一个洞穴里发现的古代非洲人的行为线索说明了：人类自古以来一直就像人那样地生活，即一直制造工具，创立仪式和分享食物，最

后经过漫长的历史发展到今天，即：现代人的行为是从古代逐渐发展而来的，故选B项。

川.本文为说明文，主要说明了喝适量的水有助于减肥。

21. Drinking water can help lose weight.

主旨大意题。由全文的内容及由主题句即第一段“Drinking right amounts of water can really help you lose weight, new research shows. ”可知答案。

22. Drinking water.

由第二段第二句“ There's no shortage of clear evidence about how water might work to control your appetite （食欲）.”可知有充足的证据可以证明喝水可以控制你的食欲。

23. fills you up

句子填空题。由设空的前句以及后句"…so you don't eat so

much…”可推出不用吃太多，是因为水把肚子填饱了。

24. Because it might cause/lead to/result in death.

由最后一段第二、三句"… and you probably won't help matters any by drinking too much water at a time. In extreme cases, it can even be deadly.” 可知一次性喝太多水可能会致命。

25. Drinking right amounts of water.

代词指代题。由冒号后的“Drinking right amounts of water ”可知答案。

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高中英语全英教案精编版

高中英语全英教案精编 版 MQS system office room 【MQS16H-TTMS2A-MQSS8Q8-MQSH16898】

高中英语教案 . . Elicitation,MutualInteraction Interactivemultimediateaching Step1Revision Earth:notenoughrain,toomanycattle,cuttingdowntrees,strongwinds Air:smokefromfactories,powerstations,cars,chemicalrain,accidentsatpowerstations andfactories Water:wastefromfactoriesandcities Step2Presentation 1．Presentaseriesofimagesdepictingthenaturalbeautyoftheearth,（1）Readtheadditionalmaterialsaboutpollutionanddothereadingcomprehensionexercises.（2）Finishthereport. Thanksforattendingthisclass! _____________________________________________________________________________--__ 资料我国环境污染现状令人担忧 据专家估计，中国每年因环境污染造成的损失达到二千八百三十亿元人民币，其中，仅水污染一项，估计一年造成经济损失约五百亿元。 据香港《东方日报》报导，自六十年代至今，中国有环境监测的四百三十二条大小河流中，八成受到不同程度的水体污染，其中大江河经过城镇河段的占二成，支流受污染的占六成，全中国二千八百多个湖泊，凡能接纳城镇污水的，大多出现水体负氧化现象。由于地下水过度开采，京津沪大面积出现土地沉降一点五公尺至二公尺，桂林溶岩区三十米地下水重金属超标十至二十倍。 大气污染造成的经济损失约为二百亿元，由于城市燃煤、工厂排放废气及汽车死气污染，大气中二氧化硫、一氧化碳等有毒悬浮微粒弥漫在城市上空，空气污染导致许多城市肺癌死亡率增至万分之二，全国酸雨覆盖面积已达百分之三十，所有这些损失加起来也等于二百亿元。 而生态环境破坏和自然灾害造成的损失估计高达二千亿元，森林覆盖率由四九年的三成左右，现已下降至不足一成四，草原的严重退化，水土流失面积达一百五十五万平方公里，占国土面积的百分之十六。 同时，城镇建设却仍以每年侵占一百五十万公顷土地的速度发展，破坏自然生态平衡，加上自然灾害带来的损失，每年至少损失二百亿元。 其他污染如固体废物排放、噪音污染等造成的损失也高达一百三十亿元。 专家分析表示，造成环境污染引起的经济损失原因众多，但国家工业规划布局失误，调控措施不力和公民环保意识不强是主要原因。 我的体会； 学习了该教案后，我总结体会两点。

高中英语全英教案

高中英语教案I. Teaching focus the damage caused to the world and figure out the reasons. ways to stop the earth from being polluted by discussing in groups. approaches Elicitation, Mutual Interaction aid Interactive multimedia teaching process Step 1 Revision 1. Check note-making Earth: not enough rain, too many cattle, cutting down trees, strong winds Air: smoke from factories, power stations, cars, chemical rain, accidents at power stations and factories Water: waste from factories and cities Step 2 Presentation 1． Present a series of images depicting the natural beauty of the earth, then the pollution. Highlight the sharp contrast between them. Guide the students to the conclusion: The earth used to be much more beautiful than now; the earth is in danger due to the increasing pollution. 2． Study the map on the textbook, then scan the passages to figure out where on the world atlas the damage has happened. Encourage the students to give out their point of view toward the pollution issue. Step 3 Audiovisual Learning The students watch a video on the text, then do the following true or false questions. 1. Many parts of the world with large population and plenty of crops have become deserts. T 2. Land may become poor if farmers do not limit the numbers of their cattle. T 3. Good soil is gradually lost these days as trees are being cut down. T 4. Air pollution and water pollution are the two causes of the problem that many parts of the world have become deserts. F 5. Chemicals in the smoke from power stations can travel hundreds of miles in the