Studies of the effect that makes many of us slumber or feel sleepy during the Queen’s Speech on Christmas Day have revealed that changes may be required in Britain’s drink drive legislation.

    Dr James Horne, director of the Sleep Research Laboratory at Southborough University, is investigating post-lunch sleepiness. “We humans are designed to sleep twice a day, once at night and a short nap after lunch, but in this part of the world we tend to repress that.”

    It is a remnant of the same primeval programming that makes all animals in the bush rest in the hot afternoon sun to conserve energy.

    "Hot environments make it worse and many cultures living near the equator", says Dr Horne, “have conceded (=given in) to the inevitable, where the afternoon siesta is the way of life."

    In this study Dr Horne has been investigating the role of alcohol. “The theory is that if you are more sleepy after lunch then it figures that alcohol will be more potent after lunch. One would figure then that a pint of beer at lunchtime has more effect than in the evening, when people are more alert. Indeed, we find that it has about twice the effect."

    This has more sinister (險惡的) implications. “If people take alcohol up to the legal driving limit, their performance is seriously impaired after lunch." He said.

    It seems that alcohol interacts with the circadian rhythm of sleep to cause afternoon sleepiness, so that one pint at lunch time is equivalent, in effect, to a quart in the evening.

    "For this reason, most drivers ought not to drink at all at lunchtime and the legal blood alcohol limit is no guide to ‘safe’ driving here,” said Dr Horne.

    For those who wish to enjoy the Queen’s speech, Dr Horne recommends mild exercise, a splash of cold air or cold water on the face, or a cup of coffee. Otherwise, take a catnap. But this should be less than 15 minutes, otherwise, sleep really sets in and one can wake up feeling very groggy (頭昏眼花的) and far sleepier than to begin with.

63. It is implied that British people ________.

   A. like to take a short nap after lunch            B. don’t take a short nap after lunch

   C. don’t feel sleepy after lunch                   D. like to sleep twice a day

64. All animals in the bush rest in the hot afternoon sun to ________.

A. save energy                                          B. stay healthy

   C. avoid feeling hungry                             D. gain strength

65. Most drivers ought not to drink at all at lunch time because ________.

   A. alcohol will be less potent after lunch

   B. a pint of beer at lunchtime is equivalent to a quart in the evening

   C. people are more alert at lunchtime

   D. it is not legal to drink at lunchtime

66. According to the passage, if you sleep more than 15 minutes after lunch ________.

   A. you will be refreshed                            B. you will be waken up

   C. you will feel far sleepier                           D. you will take a cat nap

練習(xí)冊系列答案
相關(guān)習(xí)題

科目:高中英語 來源: 題型:閱讀理解

信息匹配(共5小題;每小題2分,滿分10分)

A. Agra Fort

Near the gardens of the Taj Mahal stands the important 16th-century Mughal monument known as the Red Fort of Agra. This powerful fortress of red sandstone encompasses, within its 2.5-km-long enclosure walls, the imperial city of the Mughal rulers. It comprises many fairy-tale palaces, such as the Jahangir Palace and the Khas Mahal, built by Shah Jahan; audience halls, such as the Diwan-i-Khas; and two very beautiful mosques.

B. Taj Mahal

Taj Mahal is regarded as one of the eight wonders of the world, and some Western historians have noted that its architectural beauty has never been surpassed. The Taj is the most beautiful monument built by the Mughals, the Muslim rulers of India. Taj Mahal is built entirely of white marble. It was constructed over a period of twenty-two years, employing twenty thousand workers. It was completed in 1648 C.E. at a cost of 32 Million Rupees.

C. Keoladeo National Park

This former duck-hunting reserve of the Maharajas is one of the major wintering areas for large numbers of aquatic birds from Afghanistan, Turkmenistan, China and Siberia. Some 364 species of birds, including the rare Siberian crane, have been recorded in the park.

D. Humayun's Tomb, Delhi

This tomb, built in 1570, is of particular cultural significance as it was the first garden-tomb on the Indian subcontinent. It inspired several major architectural innovations, culminating in the construction of the Taj Mahal. The gardens also contain the red-and-white sandstone and black-and-yellow marble tomb of Humayun’s wife and the tomb of Humayun’s barber.

E. Grand Canyon National Park

The Grand Canyon is perhaps the most awesome sight in the United States--and one of the wonders of the world. Much of the park's beauty is related to its geology and ecology. Schmidt explores the shape of the land, its plants and animals, and its human history. A fascinating book that everyone visiting the Grand Canyon should read. The Skywalk at Grand Canyon West is really exciting.

F. Sundarbans National Park

The Sundarbans covers 10,000 sq. km of land and water (more than half of it in India, the rest in Bangladesh) in the Ganges delta. It contains the world's largest area of mangrove forests. A number of rare or endangered species live in the park, including tigers, aquatic mammals, birds and reptiles.

請閱讀以下旅游者的信息,然后匹配旅游者和他/她擬旅游的景點(diǎn)。

Carina is fond of art and likes travelling very much. In order to take part in the following exhibition, she wants to take some photos of birds from all over the world, especially the rare Siberian crane. In the meanwhile, she doesn’t want to spend too much money.

Daisy’s major is biology. She is interested in studies of tigers in India. Before graduation, she needs to write an essay on the tiger. She hears that it is one of the largest tiger populations of any of India’s parks. And so she wants to go there to do some research.

Alexander is a college student of Physics. He learns that this canyon is a gift from past generations that goes beyond what we experience. He is looking forward to going there and experiencing the Skywalk in the park.

Sammy majors in history. He will visit it again this summer. He says it’s built entirely of white Marble and is one of the eight wonders of the world. Its beauty is beyond description, particularly at dawn and sunset. It seems to glow in the light of the full moon. On a foggy morning, the visitors experience it as if suspended when viewed from across the Jamuna river.

Nancy comes from the history department. Last summer she visited the ancient markets of Agra and this year she wants to visit it again. Not long ago she said: “Arriving at the Delhi airport, we representatives were warmly received. Our tirdness flew in seconds by the traditional welcome that we got at the hotel’s reception.” The next day they visited the famous tomb.

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

Nowadays people are troubled by the violence that spreads throughout the media. Movies, television and video games are full of gunplay and bloodshed, and one might reasonably ask what’s wrong with a society that presents videos of violence as entertainment.

Viewing large amounts of violent television and video games may well contribute to violent behavior in certain individuals. The trouble comes when researchers downplay uncertainties in their studies or overstate the case for causality(因果關(guān)系). Skeptics were dismayed several years ago when a group of societies including the American Medical Association tried to end the debate by issuing a joint statement: “At this time, well over 1,000 studies… point to a causal connection between media violence and aggressive behavior in some children.”

Freedom-of-speech advocates accused the societies of catering to politicians, and even disputed the number of studies (most were review articles and essays, they said). When Jonathan Freedman, a social psychologist at the University of Toronto, reviewed the literature, he found only 200 or so studies of television-watching and aggression. And when he weeded out “the most doubtful measures of aggression”, only 28% supported a connection.

The critical point here is causality. The alarmists say they have proved that violent media cause aggression. But the assumptions behind their observations need to be examined. When labeling games as violent or non-violent, should a hero eating a ghost really be counted as a violent event? And when experimenters record the time it takes game players to read “aggressive” or “non-aggressive” words from a list, can we be sure what they are actually measuring? The intention of the new Harvard Center on Media and Child Health to collect and standardize studies of media violence in order to compare their methodologies, assumptions and conclusions is an important step in the right direction.

Another appropriate step would be to tone down the criticism until we know more. Several researchers write, speak and testify quite a lot on the threat posed by violence in the media. That is, of course, their privilege. But when doing so, they often come out with statements that the matter has now been settled, drawing criticism from colleagues. In response, the alarmists accuse critics and news reporters of being deceived by the entertainment industry. Such clashes help neither science nor society.

Why is there so much violence shown in movies, TV and video games?

A. Showing violence is thought to be entertaining.

B. Something has gone wrong with today’s society

C. Many people are fond of gunplay and bloodshed.

D. There is a lot of violence in the real world today.

What is the skeptics’ view of media violence?

A. Violence on television is fairly accurate reflection of real-world life.

B. Most studies exaggerate (夸大) the effect of media violence on the viewers.

C. A causal relationship exists between media and real-world violence.

D. The influence of media violence on children has been underestimated.

The author uses the term “alarmists” to refer to those who _________.

A. use standardized measurements in the studies of media violence

B. initiated the debate over the influence of violent media on reality

C. insist on a direct link between violent media and aggressive behavior

D. use appropriate methodology in examining aggressive behavior

The underlined phrase “weeded out” in Paragraph 3 most probably means _________.

   A. got rid of things that are not good     B. removed unwanted parts from something

   C. picked out things that are useful        D. took away unnecessary details of a report

What does the writer think of the debate concerning the relationship between the media and violence?

A. He more than agrees with the views held by the alarmists. 

B. It should come to an end since the matter has now been settled.

C. The past studies in this field have proved to be misleading.

D. More studies should be conducted before conclusions are drawn.

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

Nowadays people are troubled by the violence that spreads throughout the media. Movies, television and video games are full of gunplay and bloodshed, and one might reasonably ask what’s wrong with a society that presents videos of violence as entertainment.

Viewing large amounts of violent television and video games may well contribute to violent behavior in certain individuals. The trouble comes when researchers downplay uncertainties in their studies or overstate the case for causality(因果關(guān)系). Skeptics were dismayed several years ago when a group of societies including the American Medical Association tried to end the debate by issuing a joint statement: “At this time, well over 1,000 studies… point to a causal connection between media violence and aggressive behavior in some children.”

Freedom-of-speech advocates accused the societies of catering to politicians, and even disputed the number of studies (most were review articles and essays, they said). When Jonathan Freedman, a social psychologist at the University of Toronto, reviewed the literature, he found only 200 or so studies of television-watching and aggression. And when he weeded out “the most doubtful measures of aggression”, only 28% supported a connection.

The critical point here is causality. The alarmists say they have proved that violent media cause aggression. But the assumptions behind their observations need to be examined. When labeling games as violent or non-violent, should a hero eating a ghost really be counted as a violent event? And when experimenters record the time it takes game players to read “aggressive” or “non-aggressive” words from a list, can we be sure what they are actually measuring? The intention of the new Harvard Center on Media and Child Health to collect and standardize studies of media violence in order to compare their methodologies, assumptions and conclusions is an important step in the right direction.

Another appropriate step would be to tone down the criticism until we know more. Several researchers write, speak and testify quite a lot on the threat posed by violence in the media. That is, of course, their privilege. But when doing so, they often come out with statements that the matter has now been settled, drawing criticism from colleagues. In response, the alarmists accuse critics and news reporters of being deceived by the entertainment industry. Such clashes help neither science nor society.

Why is there so much violence shown in movies, TV and video games?

A. Showing violence is thought to be entertaining.

B. Something has gone wrong with today’s society

C. Many people are fond of gunplay and bloodshed.

D. There is a lot of violence in the real world today.

What is the skeptics’ view of media violence?

A. Violence on television is fairly accurate reflection of real-world life.

B. Most studies exaggerate (夸大) the effect of media violence on the viewers.

C. A causal relationship exists between media and real-world violence.

D. The influence of media violence on children has been underestimated.

The author uses the term “alarmists” to refer to those who _________.

A. use standardized measurements in the studies of media violence

B. initiated the debate over the influence of violent media on reality

C. insist on a direct link between violent media and aggressive behavior

D. use appropriate methodology in examining aggressive behavior

The underlined phrase “weeded out” in Paragraph 3 most probably means _________.

   A. got rid of things that are not good       B. removed unwanted parts from something

   C. picked out things that are useful          D. took away unnecessary details of a report

What does the writer think of the debate concerning the relationship between the media and violence?

A. He more than agrees with the views held by the alarmists. 

B. It should come to an end since the matter has now been settled.

C. The past studies in this field have proved to be misleading.

D. More studies should be conducted before conclusions are drawn.

查看答案和解析>>

科目:高中英語 來源:2014屆遼寧葫蘆島第一高級中學(xué)高二下期期中考試英語卷(解析版) 題型:閱讀理解

For years scientists have been worried about the effects of air pollution on the earth’s natural conditions. Some believe the air inside many houses may be more dangerous than the air outside. It may be one hundred times worse.

Indoor air pollution can cause a person to feel tired, to suffer eye pain, headache and other problems. Some pollutants can cause breathing disorders, diseases of blood and even cancer. Most scientists agree that every modern house has some kind of indoor pollution.

People have paid more attention to the problem now. It is true that when builders began making houses and offices they did not waste energy. To do this they build buildings that limited the flow of air between inside and outside. They also began using man-made building materials. These materials are now known to let out harmful gases.

As the problem became more serious, scientists began searching for a way to deal with it. They discovered a natural pollution control system for building—green plants. Scientists do not really know how plants control air pollution. They believe that a plant’s leaves absorb or take in the pollutants. In exchange the plant lets out oxygen through its leaves and tiny organizations on its roots. Scientists suggest that all buildings should have one large plant or several small plants inside for every nine square meters of space. Studies of different plants show that each absorbs different chemicals. So the most effective way to clean the air is to use different kinds of plants. Having green plants inside your house can make it a prettier and more healthy place.

1.Generally speaking, indoor air pollution may be more harmful than the air outside because ______.

A.indoor air pollution can often make people seriously ill

B.man-made building materials give off dangerous gases

C.there may be more harmful gases outside the buildings

D.the air indoors is polluted, which is very harmful

2.Some kind of indoor pollution can be found in______.

A.every modern house          B.every old house

C.a(chǎn)ll kinds of houses           D.a(chǎn)ll kinds of offices

3.The indoor air pollution is caused by ______.

A.the limit of the flow of air between inside and outside

B.the building way that the builders want to save energy

C.the building things that are made of man-made materials

D.the man-made building materials and the limit of air-flow

4.The reason why we should use different kinds of plants to clean the air is that ______.

A.plants can let out all kinds of pollutants indoors

B.plants may take in more oxygen which people need

C.plants can absorb all kinds of harmful indoor chemicals

D.plants can make our houses prettier and more healthy

 

查看答案和解析>>

科目:高中英語 來源:2010-2011學(xué)年云南省高三上學(xué)期第二次月考英語卷 題型:完型填空

I ran across an old photo of him the other day, thinking of some old things. He’s been dead for 25 years. His name was Rex.

36  was his favorite recreation(娛樂). He had so much 37 in the water as any person I have known. You didn’t have to throw a stick in the water to 38 him to go in. Of course, he would bring back a stick to you if you 39 throw one in.

That 40 me of that night, 41 he brought back a small box that he found somewhere--- how 42 nobody ever knew. Since it was Rex, it 43 easily have been half a race. The box wasn’t a good one. It was just a 44 old piece that somebody 45. Still it was something he wanted, probably 46 there was some difficulty in transportation(運(yùn)輸). And that he thought could test his courage. We first knew about his achievement when, deep in the night, we 47 him trying to get the box up onto the porch(門廳). It sounded 48 two or three people were trying to tear the house 49 . We came downstairs and turned on the 50 light. Rex was on the top step trying to pull the thing up, but it had 51somehow. And he was just holding his own(堅(jiān)持著). I suppose he would have held his own 52 dawn if we hadn’t helped him. The next day we carried the box miles away and threw it out. If we had thrown it out in a 53 place, he would have brought it home again, as a small token(象征)of his strength in such matters. 54, he had been taught to carry heavy wooden objects about and he was 55 of his skill.

1.

A.

Fighting

B.

Swimming

C.

Barking

D.

Running

2.

A.

fun

B.

trouble

C.

danger

D.

difficulty

3.

A.

stop

B.

.make

C.

get

D.

have

4.

A.

will

B.

do

C.

did

D.

would

5.

A.

reminds

B.

warns

C.

tells

D.

.suggests

6.

A.

which

B.

while

C.

as

D.

when

7.

A.

far

B.

long

C.

old

D.

heavy

8.

A.

could

B.

can

C.

should

D.

would

9.

A.

priceless

B.

worthless

C.

valuable

D.

important

10.

A.

kept

B.

forgot

C.

deserted(遺棄)

D.

remained

11.

A.

because

B.

only if

C.

even if

D.

in case

12.

A.

saw

B.

heard

C.

watched

D.

caught

13.

A.

like

B.

that

C.

as if

D.

at least

14.

A.

up

B.

in

C.

away

D.

down

15.

A.

hall

B.

kitchen

C.

bedroom

D.

porch

16.

A.

rolled

B.

stopped

C.

caught

D.

broken

17.

A.

at

B.

before

C.

till

D.

during

18.

A.

distant

B.

nearby

C.

silent

D.

busy

19.

A.

In all

B.

As a result

C.

At last

D.

After all

20.

A.

proud

B.

tired

C.

ashamed

D.

doubtful

【答案】

21.B

22.A

23.C

24.C

25.A

26.D

27.A

28.A

29.B

30.C

31.A

32.B

33.C

34.D

35.D

36.C

37.C

38.B

39.D

40.A

【解析】略

【題型】完型填空

【適用】一般

【標(biāo)題】2011屆云南省昆明三中高三上學(xué)期第二次月考英語卷

【關(guān)鍵字標(biāo)簽】人物傳記類

【結(jié)束】

11【題文】  With its budget of $80 million , John Woo as director, and an all-star cast(明星云集的演員陣容), Red Cliff is the most expensive and ambitious Asian-financed film ever. Last week I saw the release of the second part, and boy oh boy does it shows.

But watching the film as a foreigner I felt I was missing out on something. Not knowing my Cao Cao's from my Zhou Yu's, I was not even sure whom I wanted to win. Certainly after the opening scene, in which Cao Cao is seen watching a game of Cuju, an ancient Chinese variation of football, I knew who had my support. After all, any man who enjoys his football is someone after my own heart. But after Cao Cao resorted to some evil strategies against his enemies in the south, I wasn't so sure he was the man I should be rooting for.

And there is a lot more to Red Cliff 2 than just extravagant battle scenes. The film does not take itself too seriously. Conversations between leaders are littered with one-liners, many of which had the audience in laughter. There is even enough to keep fans of more romantic entertainment happy too. This includes a charming relationship between a southern spy(偵探)and an innocent northern soldier. The characters' interaction provides some genuinely heart-warming moments in the middle of the battle.

Clocking in at(結(jié)束于)around two hours, the film certainly does justice to the history story. When I walked out the cinema, I felt as drained(精疲力竭) as Cao Cao's soldiers must have 1,800 years ago.

41.By expressing “boy oh boy” in the first paragraph, the author seems to show that _______.

A.the film characters are like boys who are childish.

B.the film provides amazing and surprising scenes for audience.

C.the film is suitable for younger boys to watch.

D.the film scene is so bloody that boys shouldn’t watch it.

42.When did the author change his attitude toward Cao Cao?

A.When he read the history story about Cao Cao.

B.When he saw Cao Cao was watching a game of Cuju,

C.When he realized that Cao Cao took some bad measures to beat his enemies.

D.When he saw the romantic love story of Cao Cao and a southern spy.

43.The following factors of the film are all mentioned in the passage except_______.

A.high budget

B.leading roles

C.a(chǎn)ctors and actress

D.conversations

44.From the passage we can infer that_______.

A.the author is a football fan in a foreign country.

B.Cuju is the name of an ancient Chinese variation of football.

C.the film Red Cliff 2 lasts about two hours.

D.the author was very tired after about two hours’ battle.

【答案】

45.B

46.C

47.C

48.A

【解析】略

【題型】閱讀理解

【適用】一般

【標(biāo)題】2011屆云南省昆明三中高三上學(xué)期第二次月考英語卷

【關(guān)鍵字標(biāo)簽】新聞報(bào)道類

【結(jié)束】

12【題文】Safety and Security Procedures

Your safety and the security of your personal property are of the primary concern to those of us who welcome you as our guest. We urge you to take advantage of the following suggestions.

YOUR VEHICLE

Lock your vehicle and do not leave money or valuable items inside. We are not responsible for their loss.

TRAVELING

Be good at noticing things around you when sightseeing or traveling. Stay in well-lit and heavily traveled areas. Don’t display large amounts of cash.

GUEST ROOM SECURITY

For additional security use the deadbolt (插鎖) provided on your door and make sure the windows are locked. As an additional precautious measure, please secure the secondary locks provided. Do not admit anyone to your room without first making identification. A one-way viewer is provided in your door to assist with identification. If there is any doubt about the person’s identity, please contact the Front Desk.

SAFETY BOXES

Do not leave money or valuables in your room or vehicle. We provide free safety boxes for your use. Hotel is not responsible for items left in room valued over $200.

KEYS

Safeguard your key. Please do not leave it in the door. Do not give your key to others or leave it unattended. Please leave your key at the Front Desk when you check out.

REPORTING

Please report any suspicious activity, or safety concerns to management.

FIRE

Please familiarize yourself with the nearest fire exits. Report fire or smoke to the hotel operator. In the unlikely event of a fire, please move quickly and calmly to the nearest safe exit and leave the building. Avoid the use of elevator.

49.The suggestions are most probably from ______.

A.a(chǎn) hotel manager

B.a(chǎn) police officer

C.a(chǎn)n experienced traveler

D.a(chǎn) tour guide

50.Which of the following is TRUE?

A.It is advised to travel to places where there are few people.

B.The hotel is not responsible for anything you lose.

C.Don’t report to the manager unless you are sure something is going wrong.

D.You’d better use the deadbolt and the secondary locks for safety.

51. If you feel doubtful about a stranger who knocks at the door, you should _____.

A.let the person in after you have got his/her name

B.open the door to check the person’s ID card

C.call the Front Desk to make sure

D.contact the local police for assistance

52.What does the underlined part “In the unlikely event of a fire” mean?

A.In case a fire happens, though it is not very possible

B.If a fire happens when some big events are taking place.

C.In case a fire happens in a public building.

D.If a fire breaks out and it is getting out of control.

【答案】

53.A

54.D

55.C

56.A

【解析】略

【題型】閱讀理解

【適用】一般

【標(biāo)題】2011屆云南省昆明三中高三上學(xué)期第二次月考英語卷

【關(guān)鍵字標(biāo)簽】廣告布告類

【結(jié)束】

13【題文】The new iPhone 3G should please everyone. Its look and feel are only slightly improved, but a faster network loads Web pages more quickly, true GPS functionality allows it to easily find places nearby, and the new $199 price (down from $400) makes it an affordable luxury.

Before deciding whether to buy, however, make sure you can actually take advantage of the iPhone 3G's high-speed data network. 3G stands for third-generation, which in non-geek speak translates to Web pages and mail messages that, ideally, load about three times faster than on the original iPhone. Even better, 3G coverage enables you to make a phone call and surf the Web at the same time. That's great, if you live or work in a place where the 3G network of AT&T(美國電話電報(bào)公司) (the sole wireless carrier of the iPhone) is active. That's not so great in cities like New York where AT&T's cellular coverage is awful. As one of my colleagues in New York City, who bought the original iPhone, commented, "It's just a toy. You can't make phone calls on it, so I carry my Verizon phone with me all the time."

The real fun begins when you tap on the icon called "App Store" and start browsing the hundreds of add-on applications that have been developed just for the iPhone. You'll find tons of games (I like JirboBreak, a free game inspired by the Atari classic Breakout) and mobile versions of popular websites like Pandora, Facebook, MySpace and the New York Times. Most apps will cost you, but the vast majority are $9.99 or less. The apps work on the old iPhones too, but you'll enjoy them a lot more on the iPhone 3G because many of the programs, including Yelp (local business reviews), Whrrl (mobile social networking) and UrbanSpoon (restaurant reviews), use your exact location — provided by the iPhone 3G's GPS chip — to make recommendations. The apps also load much faster over the 3G network.

57.The new iPhone 3G has following features except that _______

A.It looks and feels better

B.It has a faster network

C.It is easy to locate a place

D.It is too expensive for people to buy

58.Why do one of my colleagues carry Verizon phone with him all the time? ______.

A.Because iPhone 3G is just a toy.

B.ecause he prefers Verizon phone better.

C.Because AT&T's cellular coverage is terrible there

D.Because Verizon phone enables him make a phone call and surf the Web at the same time

59.Which of the following statements is NOT true according to the passage. ____.

A.App Store will offer you great fun.

B.many apps have been developed for the iPhone.

C.Most apps are very expensive.

D.Pandora, Facebook, MySpace and the New York Times are popular websites.

60.From the passage we know that the attitude of the author toward iPhone 3G is _____.

A.doubtful

B.a(chǎn)ppreciative

C.optimistic

D.pessimistic

【答案】

61.D

62.C

63.C

64.B

【解析】略

【題型】閱讀理解

【適用】一般

【標(biāo)題】2011屆云南省昆明三中高三上學(xué)期第二次月考英語卷

【關(guān)鍵字標(biāo)簽】經(jīng)濟(jì)類

【結(jié)束】

14【題文】Birds that are half-asleep—with one brain hemisphere (半球) alert and the other sleeping—control which side of the brain remains awake, according to a new study of sleeping ducks.

Earlier studies have documented half-brain sleep in a wide range of birds. The brain hemispheres take turns sinking into the sleep stage characterized by slow brain waves. The eye controlled by the sleeping hemisphere keeps shut, while the wakeful hemisphere’s eye stays open and alert. Birds also can sleep with both hemispheres resting at once.

Decades of studies of bird groups led researchers to predict extra alertness in the end-of-the-row sleepers which tend to be attacked more easily. Sure enough, the end birds tended to watch carefully on the side away from their companions. Ducks in the inner spots showed no preference for gaze direction.

Also, birds napping at the end of the line depend on single-hemisphere sleep, rather than total relaxation, more often than inner ducks did. Turning 16 birds through the positions in a four-duck row, the researchers found that compared with 12 percent for birds in internal spots, outer birds half-asleep during some 32 percent of napping time.

“We believe this is the first evidence for an animal behaviorally controlling sleep and wakefulness at the same time in different regions of the brain,” the researchers say.

The results provide the best evidence for a long-standing assumption that single-hemisphere sleep evolved as creatures scanned for enemies. The preference for opening an eye on the lookout side could be widespread, he predicts. He’s seen it in a pair of birds napping side-by-side in the zoo and in a single pet bird sleeping by a mirror. The mirror-side eye closed as if the reflection were a companion and the other eye stayed open.

Useful as half-sleeping might be, it’s only been found in birds and such water animals as dolphins, whales, and seals. Perhaps keeping one side of the brain awake allows a sleeping animal to surface occasionally to avoid drowning.

Studies of birds may offer unique insights into sleep. Jerome M. Siegel of the UCLA says he wonders if birds’ half-brain sleep “is just the tip of the iceberg.” He supposes that more examples may turn up when we take a closer look at other species.

65.According to the passage, birds often half sleep because ______.

A.they have to watch out for possible attacks

B.their brain hemispheres take turns to rest

C.the two halves of their brain are differently structured

D.they have to constantly keep an eye on their companions

66.What is implied about the example of a bird’s sleeping in front of a mirror?

A.An imagined companion gives the bird a sense of security.

B.Birds prefer to sleep in pairs for the sake of their security.

C.The phenomenon of birds napping in pairs is widespread.

D.A single pet bird enjoys seeing its own reflection in the mirror.

67. While sleeping, some water animals tend to keep half awake in order to ______.

A.a(chǎn)lert themselves to the approaching enemy

B.emerge from water now and then to breathe

C.be sensitive to the ever-changing environment

D.a(chǎn)void being swept away by rapid currents

68.By saying “just the tip of the iceberg”, Siegel suggests that ______.

A.half-brain sleep has something to do with icy weather

B.the mystery of half-brain sleep is close to being solved

C.most birds living in cold regions tend to be half sleepers

D.half-brain sleep may exist among other species

【答案】

69.A

70.A

71.B

72.D

【解析】略

【題型】閱讀理解

【適用】一般

【標(biāo)題】2011屆云南省昆明三中高三上學(xué)期第二次月考英語卷

【關(guān)鍵字標(biāo)簽】科普類

【結(jié)束】

15【題文】People in China, as in other parts of the world, are waiting to see how U.S. President-elect Barack Obama will deal with global problems such as the current economic slowdown once he takes office. As Sam Beattie reports from Beijing, there is widespread hope for closer U.S.-Chinese cooperation.

For many students in Beijing, Mr. Obama symbolizes all that is possible in the United States. He's a popular winner here, seen as a self-made man who has made it to the top.

"I think he is very charming, and a president who can create a new era," said Zhang Wei, a university student. "I like him very much and most of my friends do too." Ni Weibo, another university student, agrees. "Sino-U.S. relations still need more cooperation," she said. "I think he will help take it to a new era."

China's President Hu Jintao congratulated Mr. Obama within hours of his victory, saying he hoped bilateral ties could be made stronger.

Political analysts here say China will be looking for the incoming president to avoid contentious issues such as Taiwan's independence, human rights and Tibet.

Instead, they say Beijing would like Mr. Obama to focus on solving the global economic crisis, and to help China's slowing economy by opening up U.S. markets.

But trade relations might be a sticking point, says Renmin University's Professor of International Studies, Shi Yinhong.

He warns, "There is a possibility that President Obama will take some protectionist measures which China will not accept, then trade disputes could develop to a degree that we have not seen ever before."

Despite making the headlines, Mr. Obama faces some tough challenges in managing the U.S. relationship with China. China is now a stronger and more confident country than the China his

predecessors dealt with. And in this time of economic uncertainty, analysts say it's a country with which Mr. Obama will want to maintain a good relationship.

73.What can we infer from the first three paragraphs?

A.Mr. Obama was popular with many students in Beijing mostly because he will take office soon.

B.Economic slowdown is the big problem that the world is facing and looking forward to solve except US

C.China’s President Hu Jintao congratulated Obama on his victory within hours.

D.Through Obama’s being elected, we can see all is possible in US and a new relationship may come.

74.What is not mentioned in this passage?

A.What Barack Obama is expected to do in dealing with the US-China relationship.

B.Why Barack Obama will maintain a good relationship with China.

C.How Barack Obama will deal with the current economic slowdown.

D.What image Barack Obama has given to Chinese people.

75. What does “ a sticking point”( in para.7 ) mean?

A.a(chǎn) twist point

B.a(chǎn) disputed point

C.a(chǎn) good beginning

D.a(chǎn) understanding point

76.What is the best title for this report?

A.US-Chinese Cooperation Under the Current Economic Slowdown

B.Obama, Seen As A Popular Winner In China

C.Chinese Want Stronger Ties With US Under Obama Administration

D.The Current Economic Problem faces China As Well As US

【答案】

77.D

78.C

79.B

80.C

【解析】略

【題型】閱讀理解

【適用】一般

【標(biāo)題】2011屆云南省昆明三中高三上學(xué)期第二次月考英語卷

【關(guān)鍵字標(biāo)簽】政治經(jīng)濟(jì)文化類

【結(jié)束】

 

查看答案和解析>>

同步練習(xí)冊答案