To many web-building spiders, most of whom are nearly blind, the web is their essential window on the world: their means of communicating, capturing prey, meeting mates and protecting themselves. A we 题目和参考答案——青夏教育精英家教网—

题目内容

To many web-building spiders, most of whom are nearly blind, the web is their essential window on the world: their means of communicating, capturing prey（猎物）, meeting mates and protecting themselves. A web-building spider without its web is like a man cast away on an island of solid rock, totally out of touch and destined to starve to death.

So important is the web to an orb-web spider's survival that the animal will continue to construct new webs daily even if it is being starved. For 16 days the starving spider builds completely normal webs. Then, as the animal gets scrawnier（憔悴的）, it constructs a wider-meshed web using fewer strands（线）. Such webs would only trap larger prey, which is more economical from the perspective of a starving spider.

The spider stores energy by recycling web protein. It simply eats its own web each evening and reuses it to produce new silk. In studies with radioactively, labeled materials, it was found that 95 percent of web protein reappears in the next day' web. Most of the energy needed for web-building is used in walking over the strands as they are laid down．

Scientists are impressed by the adaptability of the spider's highly preprogrammed brain, which is larger for its size than the brain of any other invertebrate（无脊推动物）. If web-building is interrupted, or if some of the existing strands are destroyed, the spider simply goes back to see where the web is left off and then finishes building a normal web. One spider will finish building the incomplete web of another.

1.What is probably the best title for the passage?

A. Secrets of Spiders' Adaptability

B. Secrets of the Spiders' Life

C. Importance of Webs to Spiders

D. Spiders' Highly Preprogrammed Brain

2.According to the passage, which of the following statements is TRUE?

A. Web-building spiders will probably die without their webs.

B. One Web-building spider usually conducts one web.

C. Most spiders will stop conducting webs when hungry.

D. Web-building spiders have good eyesight.

3.A spider conducts a wider-meshed web when ________.

A. it is 16 days old

B. it is getting weaker

C. it has fewer wends

D. it hunts for food

4.A spider's ability to finish an incomplete web proves that ________.

A. it reuses its web protein to reproduce new silk

B. it is able to rebuild a destroyed web

C. the incomplete web is much more important

D. it has a highly preprogrammed brain

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	A．	introduced		B．	has introduced
	C．	was introduced		D．	is being introduced

1.I’m writing to you in___________(connect) with your job application.

2.Crack cocaine is the most___________(上瘾)form of cocaine.

3.Before they visited India, they____________(record) several albums.

4.We waited with ________ （anxious）for the news of her safe arrival.

5.I’m at a _______(lose) about what I can do to help them.

6.Joseph Haydn was one of the greatest c_________ of his time.

7.This is a t___________ Chinese painting, named The Three Friends of Winter.

8.I decided to go to the meeting as a(n)__________(表达) of support.

9.Playing computer games is _________(delight), but spending too much time on it may do harm.

10.Climate and weather can affect every a_________ of our lives.

If you don’t know the meaning of the word ,you can ____the dictionary.

A. refer to B. look into

C. look up D. check

1.Water is __________(有益) to both plants and animals.

2.To their __________（恼怒，生气）, he decided not to come back for the Spring Festival.

3.Our new school library is __________(可使用的，可进入的) to every student in our school for free.

4.We look at the child with __________(同情).

5.Children under 14 must be __________（陪伴）by an adult.

6.The broken blue bike was found __________(抛弃，遗弃) by the river side.

7.As I was sorting out my __________(住处), a door bell rang.

8.These facts are __________(与…有关) to the case.

9.You should encourage the young __________(参与者) to run the company.

10.This paper is __________(分配) free.

11.The boss gave her the job on the headmaster’s __________(推荐).

12.She __________（致谢）his help in her book.

13.They are busy making __________（准备） for the wedding.

14.She felt her home wasn’t __________（讲究的，高雅的）enough.

15.He made a __________(捐赠) to the stricken area.

Researchers from the University of Michigan have found that astronauts’ brains change shape during spaceflight. It is the first study1.(look) into how the brain changes in space. Researchers looked at high-tech MRI(磁共振成像)pictures of the brains of 26 astronauts who spent time in space. Twelve of the2.(astronaut) spent two weeks on the Space Shuttle, and 14 spent six months on the International Space Station. All of them3.(experience) increases and decreases in the size of 4.(differ) parts of the brain. The longer an astronaut spent in space ,the 5.(big) the size differences were.

The research produced some6.(interest) findings. One was that on gravity means fluids do not drop in the body, 7.there is a shift in the brain’s position inside the skull. The brain becomes either smaller or bigger. The findings could help doctors to treat problems that affect the brain’s function. They could treat people with problems 8.(cause)by long-term bed rest. They could also help those who have a build-up of fluid in the brain, which can lead9.brain damage. We will understand more about 10.neurons(神经元)in the brain connect. The findings will also help future trips to Mars.

最近的一项研究表明，大约有50％的青少年没有吃早餐的习惯。请根据表格内容用英语写一篇题为“Top Meal of the Day”的短文刊登在21st Century上。

原因 1、学习太晚，多睡一会。

2、家长太忙，给钱让孩子自己解决。

3、女孩子保持苗条身材。

结果 1、课堂上睡觉。2、注意力下降。3、成绩不理想。

建议 …….

注意： 1．词数：120左右。

2．不要逐字翻译，要点可适当发挥。

________________________________________________________________________________________

__________________________________________________________

Is it fair for restaurants to ban little eaters? In Monronroeville, a local restaurant, McDain’s, recently decided to ban young children. Alice Roseman, its manager, says kids have bad manners and make too much noise. Other people, however, say the rule is hard to accept. Since it has become a hot topic in public, we caught several local people talking about it.

YES

There is no law stopping restaurants from banning young children. Restaurant owners should be allowed to ban them. Kids often run around and cause problems for waiters and other customers.

----Kate Barker

Kids always cause a mess, but the parents refuse to do anything about their kids’ behaviors. Although kids may be at the center of their parents’ universe, they aren’t at the center of everyone else’s.

------Mike Vuick

Adults sometimes want to talk and enjoy their dinner, but they can’t if a child is crying and running all over the place. That’s why sometimes parents don’t like eating at home. They wish they could have a good meal in the restaurants without kids’ noise.

------Dale Levitsky

Banning kids from restaurants is a bad idea. If kids were banned, many restaurants would lose business. Even if restaurants gave customers the chance to buy take-away meals for their kids, many families would probably still not eat there.

--------Nicholas Song

Restaurants owners who ban kids think all children are wild and rude. But that’s not true. Most children’s eating behaviors are good enough. Even though some kids do have bad manners, banning is not a right way to teach them. I think how a society treats its children is important. After all, all kids are people, too.

-------Elliott Hall

1.The restaurant in Monronroeville refuses ___________ to eat there.

A. women

B. pets

C. men

D. kids

2.Dale Levit sky thinks parents sometimes don’t like eating at home because _________________.

A. they are too busy

B. kids are too noisy

C. they dislike doing the dishes

D. restaurant food is more delicious

3.Who thinks it is wrong to ban kids?