Most animals have little connection with animals of a different kind, unless they hunt them for food. Sometimes, however, two kinds of animals come together in a partnership(伙伴關(guān)系) which does good to both of them. You may have noticed some birds sitting on the back of sheep. This is not because they want a ride, but because they find easy food in the parasites(寄生蟲)on sheep. The sheep allow the birds to do so because they remove the cause of discomfort. So although they can manage without each other, they do better together.
Sometimes an animal has a plant partner. The relationship develops until the two partners cannot do without each other. This is so in the corals(珊瑚)of the sea. In their skins they have tiny plants which act as “dustman”, taking some of the waste products from the coral and giving in return oxygen which the animal needs to breathe. If the plants are killed, or are even prevented from light so that they cannot live normally, the corals will die.
【小題1】Some birds like to sit on a sheep because _________.
A.they can eat its parasites |
B.they consider the sheep as their shelter |
C.they enjoy traveling with the sheep |
D.they find the position most comfortable |
A.birds and parasites | B.sheep, birds and parasites |
C.parasites and sheep | D.birds and sheep |
A.comfort | B.light | C.oxygen | D.food |
A.Some plants depend on each other for food. |
B.Some animals and plants develop their relationship easily. |
C.Some animals and plants depend on each other for existence. |
D.Some animals live better together. |
【小題1】A
【小題2】D
【小題3】C
【小題4】C
解析試題分析:文章介紹自然界中有的動物和動物之間看相處的很好,還有的植物和動物是互相依存的關(guān)系。
【小題1】細節(jié)理解題。答案即在“This is not because they want a ride, but because they find easy food in the parasites (寄生蟲) on sheep.”一句之中?芍B喜歡坐在羊的身上,是想吃羊身上的寄生蟲,選A
【小題2】猜詞題:前文中的“The sheep let the birds do so because they can stop the parasites from troubling them.”的意思是說“綿羊讓鳥兒落在自己身上,因為鳥兒可以將它們身上的寄生蟲吃掉!保涣硪痪洹癝o though they can do with it by themselves…”的意思是說“盡管它們自己也能對付寄生蟲……”。綜合上面兩句話的意思,再結(jié)合“…they can do better together with each other.”這一句話,可知they指的是鳥和羊,即得答案為D
【小題3】細節(jié)題:根據(jù)第二段的句子:“…taking the useless things from the coral and giving oxygen in return. That is what the animal needs to live.”這兩句話可知,珊瑚需要植物提供的氧氣才能生存下去。選C
【小題4】推理題:根據(jù)第二自然段的內(nèi)容,Sometimes an animal has a plant partner.珊瑚和它們體內(nèi)的植物具有相互依存的關(guān)系。C
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科目:高中英語 來源: 題型:閱讀理解
Bissel is a small village of the West Sahara. It lies next to a l.5-square-kilometer oasis(綠洲), from where three days and nights are generally required to go out of the desert. However, before Ken Levin discovered it in 1926, none of the Bissel villagers had ever walked out of the desert. Reportedly, they were not unwilling to leave this barren land. Many had previously tried but failed, always somehow finding themselves back at the oasis after several days of trying to walk out.
When interviewed by Ken Levin, an expert at the British Royal College of Sciences, the villagers explained that no matter which direction they walked it always brought them back to the village.Why couldn’t the Bissel villagers walk out of the desert? Levin was very puzzled. He had, by himself, managed to walk north from the village and reach the nearest town in three and a half days. He decided to carry out an experiment to solve the mystery. He and a Bissel villager called Argutel, would walk out of the desert together. They prepared enough water for a half-a-month journey and two camels. But this time Ken Levin didn't bring his compass. Levin would follow Argutel.
Ten days later, they had walked for about 500 miles but were still in the desert. On the 11th morning, an oasis came into their view. They were back at Bissel. Levin now understood why the Bissel people couldn’t escape the desert. They had no knowledge of the North Star, which had for centuries provided sailors and other travelers with a point of direction. In the desert, if a person goes forward relying only on their senses, they will not be able to travel in a straight line. Rather they will travel in a very large circle and eventually track back to where they began. Levin explained to Argutel the function of the North Star and said, “As long as you rest in the daytime and walk towards the brightest star at night, you would be able to walk out of the desert.” Argutel did as he was told. Three days later, he came to the edge of the desert.
Now in the West Sahara, Bissel has become a bright pearl, where tens of thousands of tourists come every year. Argutel’s bronze statue stands in the center of the town. On its base are the words: __________________________.
【小題1】Ken Levin asked Argutel to walk to the north in order to ________.
A.prove that people could walk out of the desert see |
B.how far away Bissel was to the edge of the desert |
C.tell people not to walk in circles |
D.show Argutel was a great person |
A.knew Argutel before he came to the village |
B.came to Bissel to do experiments on behalf of his college |
C.became the first man to walk out of the desert from Bissel Village |
D.taught Bissel villagers knowledge of the North Star when he first arrived |
A.Ken Levin didn’t walk south because it would take more days |
B.the use of a compass was necessary to walk out of the desert |
C.tourism in Bissel has been greatly developed and improved |
D.Argutel became the leader of Bissel after his return |
A.A new life starts from the fixed direction. |
B.Where there is a will , there is a way . |
C.A long journey starts with the first step . |
D.Two heads are better than one. |
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科目:高中英語 來源: 題型:閱讀理解
New research shows that overweight or even mildly obese people have a lower risk of early death than people considered to be normal weight.
Researchers examined the results of 97 studies. Most of the studies were less than 10 years old. They included almost three million adults from around the world, including the United States, Canada, China, Taiwan, Brazil, India and Mexico.
The researchers at the National Center for Health Statistics found that people who are considered overweight or slightly obese were five to six percent less likely to die from all causes than people of normal weight. People with higher obesity ratings, however, had almost a 30 percent greater risk of death compared to normal-weight individuals.
Katherine Flegal was the lead author of the study. She says she was not surprised that overweight people would not have a higher risk of death.
“Because we’d actually already read a lot of this literature and realized it was likely that mortality rates (死亡率) for overweight would be at least not higher than normal weight. I guess I was a little bit surprised that it was definitely lower. And I was also surprised that the lower rates of obesity also didn’t seem to differ from normal weight.”
But she says the difference in death rates appears to be small between normal-weight people and those who are overweight or mildly obese.
The study has raised new questions about “body mass index,”(體重指數(shù)) or BMI. This is a measurement of body fat as a ratio(比率) of height to weight. In recent years, many public health experts have promoted body mass index as a way to predict the risk of health problems. Bu t a person's BMI can be misleading in some cases.
Steven Heymsfield ,the executive director of the Pennington Biomedical Research Center, says people can be physically fit and in good health, but might weigh more because they are more muscular.
Still, Dr. Heymsfield says people should not think gaining extra weight is OK just because of the new findings. He says being at a healthy weight lowers the risk for heart disease and diabetes(糖尿病).
【小題1】According to the new findings, the researchers found that __________ .
A.People with high obesity have a lower risk of early death than people with low obesity |
B.People with overweight have a greater risk of early death than people of normal weight. |
C.People with mild obesity are less likely to die than people of normal weight. |
D.People with obesity live much longer than people of normal weight. |
A.works like novels and poems |
B.books and articles on a particular subject |
C.printed material |
D.magazines and newspapers |
A.BMI is commonly used to measure body fat as a ratio of height to weight. |
B.Not all people with a little higher BMI are fat . |
C.Many public health experts encourage more people to use BMI as a way to predict the risk of health problem |
D.Because of the ne w findings, people should think about gaining extra weight. |
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科目:高中英語 來源: 題型:閱讀理解
Sports shoes that work out whether their owner has done enough exercise to warrant time in front of the television have been devised in the UK.
The shoes — named Square Eyes — contain an electronic pressure sensor and a tiny computer chip to record how many steps the wearer has taken in a day. A wireless transmitter passes the information to a receiver connected to a television, and this decides how much evening viewing time the wearer deserves, based on the day’s efforts.
The design was inspired by a desire to fight against the rapidly ballooning waistlines among British teenagers, says Gillian Swan, who developed Square Eyes as a final year design project at Brunel University in London, UK. “We looked at current issues and childhood overweight really stood out,” she says. “And I wanted to tackle that with my design.”
Once a child has used up their daily allowance gained through exercise, the television automatically switches off. And further time in front of the TV can only be earned through more steps.
Swan calculated how exercise should translate to television time using the recommended daily amounts of both. Health experts suggest that a child take 12,000 steps each day and watch no more than two hours of television. So, every 100 steps recorded by the Square Eyes shoes equals precisely one minute of TV time.
Existing pedometers (計步器) normally clip onto a belt or slip into a pocket and keep count of steps by measuring sudden movement. Swan says these can be easily tricked into recording steps through shaking. But her shoe has been built to be harder for lazy teenagers to cheat. “It is possible, but it would be a lot of effort,” she says. “That was one of my main design considerations.”
【小題1】According to Swan, the purpose of her design project is to ________.
A.keep a record of the steps of the wearer |
B.deal with overweight among teenagers |
C.enable children to resist the temptation of TV |
D.prevent children from being tricked by TV programs |
A.They regulate a child’s evening TV viewing time. |
B.They determine a child’s daily pocket money. |
C.They have raised the hot issue of overweight. |
D.They contain information of the receiver. |
A.The exact number of steps to be taken. |
B.The precise number of hours spent on TV. |
C.The proper amount of daily exercise and TV time. |
D.The way of changing steps into TV watching time. |
A.makes it difficult for lazy teenagers to cheat |
B.counts the wearer’s steps through shaking |
C.records the sudden movement of the wearer |
D.sends teenagers’ health data to the receiver |
A.Smart Shoes Decide on Television Time |
B.Smart Shoes Guarantee More Exercise |
C.Smart Shoes Measure Time of Exercise |
D.Smart Shoes Stop Childhood Overweight |
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科目:高中英語 來源: 題型:閱讀理解
Scientists Alan M.Goldberg and Thomas Hartung describe recent advances in replacing the use of animals in toxicology(毒物學(xué))testing.Improvements in cell and tissue culture technologies,for example,allow a growing number of tests to be performed on human cells alone.Computer models are becoming increasingly complex and many could one day become more accurate than trials in living animals.
Since the late 1990s,Huntingdon Life Sciences--a company that conducts testing of substances on animals conducted by the Environmental Protection Agency and the Food and Drug Administration—has become a proving ground for aggressive strategies by animal-rights militants (好戰(zhàn)分子).At a hearing,a Senate.committee listened to testimony(證詞) against Huntingdon employees and financial institutions providing services to the company.One experimentation witness at the hearing insisted that any means necessary were justified(辯護) to spare animals’ lives;he has previously accepted the idea of murder to that end.
Use of animals in testing and in biomedical research continues to be necessary in many instances and is ethically(倫理道德地)preferable to experimenting on humans or giving up cures that could save human lives.But for the sake of people and animals alike,the development and acceptance of animal substitutes deserve enthusiastic support.
In some instances, substitutes are already thought as good or better than animals,but supervising agencies(監(jiān)督機構(gòu))have yet to catch up.In both the European Union and the U.S.,scientists and companies wanting to use the new alternative tests complain that regulatory standards for proving a drug or chemical to be safe for humans force the continued use of animals.Thus,animal-loving Americans might turn to persuading the EPA and the FDA to speed validation(確認)of new methods so that they can be more widely employed.And animal advocates(保護者) who want to influence business could consider investing in the small biotech’s and large pharmaceutical(藥品的) companies that are working to develop alternatives to animals in research.
【小題1】_____ plays a leading role in replacing the use of animals in testing.
A.Huntingdon Life Sciences | B.Improvement in technologies |
C.Animal-fights militants | D.Scientists Alan and Thomas |
A.a(chǎn)nimals shouldn’t be used in toxicology testing |
B.a(chǎn)nimals should enjoy equal rights with human beings |
C.a(chǎn)nimals should live wildly and freely |
D.we should protect animals from being killed casually |
A.the use of animals in testing has been stopped abruptly |
B.a(chǎn)nimal substitutes are not preferable |
C.supervising standards contribute to the continued use of animals in testing |
D.only Huntingdon Life Sciences is accused |
A.Saving animals and people. |
B.The new trend in toxicology testing |
C.The use of animals in testing is against human nature |
D.New technology changes the fate of animals |
A.a(chǎn)rbitrary(武斷的,隨意的) | B.pessimistic |
C.indifferent(不關(guān)心的 ) | D.optimistic |
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科目:高中英語 來源: 題型:閱讀理解
Scientists around the world have been studying the warming of waters in the Pacific Ocean known as El Nino (厄爾尼諾). The appearance of El Nino is known to affect the weather around the world. Scientists still do not completely understand it. Yet they now find they can use it to tell about the future in different areas of the world.
One example is the work of two scientists at Columbia University in New York, Mark Cane and Gordon Eshel. A scientist of Zimbabwe(津巴布韋), Roger Buckland worked with them. They have found that when El Nino appears, Zimbabwe has little or no rain. This means corn crops in Zimbabwe are poor. The last El Nino was in 1991 to 1993. That was when southeastern Africa suffered a serious lack of rain.
The scientists wrote about their recent work in the publication(出版物)Nature. Their computer program can tell when an El Nino will develop up to a year before it does. They suggest that this could provide an effective early warning system for southern Africa, and could prevent many people from starving.
【小題1】El Nino is known as ___.
A.the changing of the weather in southern Africa |
B.the warming of waters in the Pacific Ocean |
C.the weather which brings drought(旱災(zāi))to Africa |
D.the weather phenomenon(現(xiàn)象)that brings heavy rains to Africa |
A.they can provide a kind of early warning to the place that will suffer from drought |
B.they can tell why Zimbabwe has little or no rain |
C.they can do some research work in this field. |
D.they can put all this information into their computers. |
A.Scientists come to understand how El Nino appears. |
B.Three scientists from the USA work on this subject. |
C.Southern Africa suffered a serious drought and many people died from hunger. |
D.El Nino has something to do with Zimbabwe’s poor crops. |
A.The computer is used in this research work. |
B.Scientists know when an El Nino appears by means of the computer program. |
C.The scientists published their results of the research work. |
D.Nature is the name of the article written recently by the scientists. |
A.Appearance of El Nino is Predictable(可預(yù)測的) |
B.Drought in Zimbabwe |
C.Early Warning System |
D.Weather in Africa |
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科目:高中英語 來源: 題型:閱讀理解
What will people die of 100 years from now? If you think that is a simple question, you have not been paying attention to the revolution that is taking place in bio-technology(生物技術(shù)). With the help of new medicine, the human body will last a very long time. Death will come mainly from accidents, murder and war. Today's leading killers, such as heart diseases, cancer, and aging itself, will become distant memory.
In discussion of technological changes, the Internet gets most of the attention these days. But the change in medicine can be the real technological event of our times. How long can humans live? Human brains were known to decide the final death. Cells(細胞) are the basic units of all living things, and until recently, scientists were sure that the life of cells could not go much beyond 120 years because the basic materials of cells, such as those of brain cells, would not last forever. But the upper limits will be broken by new medicine. Sometime between 2050 and 2100, medicine will have advanced to the point at which every 10 years or so, people will be able to take medicine to repair their organs(器官). The medicine, made up of the basic building materials of life, will build new brain cells, heart cells, and so on---in much the same way our bodies make new skin cells to take the place of old ones.
It is exciting to imagine that the advance in technology may be changing the most basic conditional human existence, but many technical problems still must be cleared up on the way to this wonderful future.
【小題1】According to the passage, human death is now mainly caused by _______.
A.diseases and aging | B.a(chǎn)ccidents and war |
C.a(chǎn)ccidents and aging | D.heart diseases and war |
A.medicine | B.the internet |
C.brain cells | D.human organs |
A.heart disease will be far away from us |
B.human brains can decide the final death |
C.the basic materials of cells will last forever |
D.human organs can be repaired by new medicine |
A.human life will not last more than 120 years in the future |
B.human have to take medicine to build new skin cells now |
C.much needs to be done before humans can have a longer life |
D.we have already solved the technical problems in building new cells. |
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科目:高中英語 來源: 題型:閱讀理解
The State Council declared Wednesday it would restart China's nuclear power program, ending the hiatus(中斷)in nuclear construction since Japan's Fukushima nuclear disaster last year.
China has been the most courageous country in building nuclear power, with the largest number of plants currently under construction. Nuclear power is facing a tough time in developed countries. The Japanese public is demanding the closure of all the country's nuclear power plants. China is at the forefront of nuclear power development. But it has been forced into this position.
Rapid economic development coupled with improvements in people's life both demand more electricity. It is impossible to exploit fossil resources forever as the supply of coal, oil and natural gas is limited. China has no choice but to develop nuclear power.
China must be the safest user of nuclear power. It should become a leading country in developing nuclear power technologies and increasing the world's knowledge of nuclear power.
It needs to do at least two things. First, it needs to promote safety in nuclear power plants, based on the technologies of the West. The former Soviet Union, the US and Japan all had severe nuclear accidents, proving there are risks. China should try to remove these risks.
Second, China should establish effective communication mechanisms(機制)between the government, power plants and the public. It's wrong to think the government can control every aspect of nuclear power plant construction.
The opposition to nuclear power program in developed countries has prevented them from building new plants, but they already have many. These governments are reluctant to close these plants despite strong opposition, because they cannot find better substitutes.
Nuclear power only occupies 1.8 percent of China's current electricity grid(輸電網(wǎng)), much lower than the proportion in many developed countries. China's nuclear power plan should introduce the advantages of the technologies of other countries and also be creative in providing security. Its space technology is not the most advanced, but its launch safety measures have proven to be among the best.
China's high-profile high-speed railway development has drawn a lot of controversy, as will the active attitude towards developing nuclear power. But China cannot just copy what the developed countries have done. The development of nuclear power must be unique to China and it must be a ground-breaking success. But now, the real test lies ahead.
【小題1】In the third paragraph the writer focuses on ______.
A.the reason why China is to develop nuclear power |
B.the difficulty China has in developing nuclear power |
C.the measures China will take to develop nuclear power |
D.the benefits China will have by developing nuclear power |
A.Supportive. | B.Opposed. | C.Indifferent. | D.Objective. |
A.copy exactly what the developed countries have done |
B.depend entirely on domestic scientists and technologies |
C.a(chǎn)void people’s involvement in nuclear power plant construction |
D.do everything in its power to guarantee safety in nuclear power plants |
A.It will be unique but can hardly pass too many tests. |
B.It will be full of controversy but carried out firmly. |
C.It will be on a smooth way to a ground-breaking success. |
D.It will receive much opposition from developed countries. |
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科目:高中英語 來源: 題型:閱讀理解
Below is a selection from a popular science book.
If blood is red, why are veins (靜脈) blue? Actually, veins are not blue at all. They are more of a clear, yellowish color. Although blood looks red when it’s outside the body, when it’s sitting in a vein near the surface of the skin, it’s more of a dark reddish purple color. At the right depth, these blood-filled veins reflect less red light than the surrounding skin, making them look blue by comparison. Which works harder, your heart or your brain? That kind of depends on whether you’re busy thinking or busy exercising. Your heart works up to three times harder during exercise, and shifts enough blood over a lifetime to fill a supertanker(超級油輪). But, in the long run, your brain probably tips it, because even when you’re sitting still your brain is using twice as much energy as your heart, and it takes four to five times as much blood to feed it. Why do teeth fall out, and why don’t they grow back in grown-ups? Baby (or “milk”) teeth do not last long; they fall out to make bigger room for bigger, stronger adult teeth later on. Adult teeth fall out when they become damaged, decayed(腐爛)and infected by bacteria. Once this second set of teeth has grown in, you’re done. When they’re gone, they are gone. This is because nature figures you’re set for life, and what controls regrowth of your teeth switches off. Do old people shrink(收縮)as they age? Yes and no. Many people do get shorter as they age. But, when they do, it isn’t because they’re shrinking all over. They simply lose height as their spine (脊柱) becomes shorter and more curved due to disuse and the effect of gravity (重力). Many (but not all) men and women do lose height as they get older. Men lose an average of 3-4 cm in height as they age, while women may lose 5 cm or more. If you live to be 200 years old, would you keep shrinking till you were, like 60 cm tall, like a little boy again? No, because old people don’t really shrink! It is not that they are growing backwards—their legs, arms and backbones getting shorter. When they do get shorter, it’s because the spine has shortened a little. Or, more often, become more bent and curved. Why does spinning make you dizzy)? Because your brain gets confused between what you’re seeing and what you’re feeling. The brain senses that you’re spinning using special gravity-and-motion-sensing organs in your inner ear, which work together with your eyes to keep your vision balance stable. But when you suddenly stop spinning the system goes out of control, and your brain thinks you’re moving while you’re not. Where do feelings and emotions come from? Mostly from an ancient part of the brain called the limbic system(邊緣系統(tǒng)). All mammals have this brain area — from mice to dogs, cats, and humans. So all mammals feel basic emotions like fear, pain and pleasure. But since human feelings also involve other, newer bits of the brain, we feel more complex emotions than any other animal on this planet. If exercise wears you out, how can it be good for you? Because our bodies adapt to everything we do to them. And as far as your body is concerned, it’s “use it, or lose it”! It’s not that exercise makes you healthy, it’s more that a lack of exercise leaves your body weak and easily affected by disease. |
A.Blue | B.Light yellow |
C.Red | D.Dark reddish purple |
A.Because their spine is in active use. |
B.Because they are more easily affected by gravity. |
C.Because they keep growing backwards. |
D.Because their spine becomes more bent. |
A.In the long run, our brain probably works harder than our heart. |
B.When our brain senses the spinning, we will feel dizzy. |
C.The brains of the other mammals are as complex as those of humans. |
D.Our feelings and emotions come from the most developed area in our brain. |
A.To give advice on how to stay healthy. |
B.To provide information about our body. |
C.To challenge new findings in medical research. |
D.To report the latest discoveries in medical science. |
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