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
【小題2】The underlined word “they” in the first paragraph refers to _______.
A.birds and parasitesB.sheep, birds and parasites
C.parasites and sheepD.birds and sheep
【小題3】It can be learnt from the text that the coral depends on the plants for ________.
A.comfortB.lightC.oxygenD.food
【小題4】What does the second paragraph mainly discuss?
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
【小題2】According to the passage, Ken Levin ________.
A.knew Argutel before he came to the village
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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
【小題3】It can be inferred from the passage that ________.
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
【小題4】Which of the following can most probably be found at the base of Argutel’s statue?
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New research shows that overweight or even mildly obese people have a lower risk of early death than people considered to be normal weight.
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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.
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【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
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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.
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A.keep a record of the steps of the wearer
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【小題3】From the passage,we can find _____.
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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.
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【小題5】What’s the best title for this passage?
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【小題1】According to the passage, human death is now mainly caused by _______.

A.diseases and agingB.a(chǎn)ccidents and war
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【小題2】 In the author's opinion, today's most important advance in technology lies in _____.
A.medicineB.the internet
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A.human life will not last more than 120 years in the future
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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.
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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. 
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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 
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【小題3】. If the Chinese government is to develop nuclear power, it needs to ______.
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 
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A.It will be unique but can hardly pass too many tests. 
B.It will be full of controversy but carried out firmly. 
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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.  
 
 
【小題1】What is the color of blood in a vein near the surface of the skin?
A.Blue B.Light yellow 
C.Red  D.Dark reddish purple 
【小題2】Why do some old people look a little shrunken as they age?
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. 
【小題3】Which of the following statements about our brain is true?
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. 
【小題4】What is the main purpose of the selection?
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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