Every human being has a unique arrangement of the skin on his fingers and this arrangement is unchangeable. Scientists and experts have proved the uniqueness of finger-prints and discovered that no exactly similar pattern is passed on from parents to children, though nobody knows why this is the case.
The ridge structure on a person’s fingers does not change with growth and is not affected by surface injuries. Burns, cuts and other damage to the outer part of the skin will be replaced in time by new one, which bears a reproduction of the original pattern. It is only when the inner skin is injured that the arrangement will be destroyed. Some criminals make use of this fact to remove their own finger-prints but this is a dangerous and rare step to take.
Finger-prints can be made very easily with printer’s ink. They can by recorded easily. With special methods, identification can be achieved successfully within a short time. Because of the simplicity and economy of this system, finger-prints have often been used as a method of solving criminal case. A suspected man may deny a charge but this may be in vain. His finger-prints can prove who he is even if his appearance has been changed by age or accident.
When a suspect leaves finger-prints behind at the scene of a crime, they are difficult to detect with the naked eye. Special techniques are used to “develop” them. Some of the marks found are incomplete but identification is possible if a print of a quarter of an inch square can be obtained.
Notes:
①    unique  adj. 唯一的,獨(dú)特的
②    original  adj. 最初的,原始的
③    identification  n. 辯認(rèn),鑒定
小題1: Scientists and experts have proved that the pattern of a human being’s finger skin ________.
A.is similar to his mother’s
B.is valuable to himself only
C.is like that of others with the same type of blood
D.is different from that of all others
小題2: If your fingers are wounded by knife, fire or other means, the structure of skin will ________.
A.be changed partlyB.be replaced by a different one
C.be the same when the wound is recoveredD.become ugly
小題3: Some criminals remove their own finger-prints by ________.
A.using printer’s inkB.injuring the inner skin
C.damaging the outer skin D.damaging the colour
小題4: Finger-prints have often been used as a method of solving criminal case because it ________.
A.is complicated but reliableB.is simple and not expensive
C.is expensive but easy to doD.can bring a lot of money

小題1:D
小題2:C
小題3:B
小題4:B

小題1:細(xì)節(jié)理解題。從第一段最后一句可知,人的指紋是獨(dú)一無(wú)二的。
小題2:推理判斷題。從第二段第二句Burns, cuts and other damage to the outer part of the skin will be replaced in time by new one, which bears a reproduction of the original pattern.可以推斷正確答案為C。
小題3:推理判斷題。從第二段最后兩句可知,罪犯要想改變以前的指紋,必須把內(nèi)部的皮膚損害掉。
小題4:細(xì)節(jié)理解題。從第三段第四句Because of the simplicity and economy of this system可知。指紋鑒別的方法簡(jiǎn)單而且經(jīng)濟(jì)。
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科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

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科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

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Notes:
①    clue  n. 線索
②    sample  n. 標(biāo)本,樣品
③    microbe  n. 微生物
④    previous  adj. 先前的
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科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

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科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

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科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

The dams① aimed at saving Venice from the waves have been backed greatly. After eight years of argument, it plans to build 79 gates across three channels connecting the lagoon around Venice with the Adriatic Sea. The gates would be open most of the time but would be closed if there is a danger to the city.
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Another piece of good news is that British scientists are confident that the dams will be able to face an expected rise in sea levels caused by global warming. The gates are designed to stand a 22-centimetre rise in sea levels, but many scientists expect a global rise in sea levels of 31cm by 2100.
However, Trevor Davies and Isabel Trigo from University of East Anglia believe the dams are unlikely to broken. Climate change will weaken the local storms in the Adriatic that are the main cause of flood risk. Floodwaters are also a seasonal danger in Venice, usually because of a combination of spring tides and strong winds.
Venice, which rests on wooden piles driven into boggy③ ground, has been sinking for centuries, worsening the encroachment by the sea.
Notes:
① dam  n. 大壩
② lagoon  n. 瀉湖
③ boggy  adj. 泥濘的
④ encroachment  n. 蠶食
Choose the best answers according to the above:
1. Which of the following is the main idea of the text?
A. Venice will not disappear into the sea.
B. Dams are designed to protect Venice.
C. Venice are facing dangers from the tides.
D. Global warming makes Venice worse and worse.
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A. will be washed away by the tides               B. will be sent to the higher places
C. will be carried away by workers                D. will have to be reused by humans
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A. the dams are higher than the buildings in Venice
B. there will be no tides or floods in the future
C. the climate all over the world will soon be cold
D. the storms in the Adriatic will be weaker in the future
4. According to the text, we can infer that Venice ______.
A. has been sinking for hundreds of years
B. may suffer from spring tides and strong winds
C. will be under the sea sooner or later
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科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

Why did humans evolve to walk upright? Perhaps because it’s just plain easier. Make that “energetically less costly”, scientifically speaking.
Bipedalism—walking on two feet, is one of the defining characteristics of being humans, and scientists have debated for years how it came about. In the latest attempt to find an explanation, researchers trained five chimps(黑猩猩)to walk on a treadmill(跑步機(jī))while wearing masks that allowed measurement of their oxygen consumption. The chimps were measured both while walking upright and while moving on their legs and knuckles(膝關(guān)節(jié)).That measurement of the energy needed to move around was compared with similar tests on humans and the results are published in this week’s online edition of “Proceedings of the National Academy of Sciences”.
It turns out that humans walking on two legs use only one-quarter of the energy that chimps use while knucklewalking on four limbs(肢).And the chimps, on average, use as much energy using two legs as they did when they used all four limbs.
However, there were differences among chimps in how much energy they used, and this difference corresponded to their different manner of walking and anatomy(解剖構(gòu)造).One of the chimps used less energy on two legs, one used about the same and the others used more, said David Raichlen, assistant professor of anthropology at the University of Arizona.
“What we were surprised at was the variation(變異) ”, he said in a telephone interview. Interview. “That was pretty exciting, because when you talk about how evolution works, variation is the bottom line, without variation there is no evolution.”
Walking on two legs freed our arms, opening the door to drive the world, said Raichlen. “We think about the evolution of bipedalism as one of first events that led hominids(原始人)down the path to being humans.”
The research was supported by the National Science Foundation and the L.S.B.Leakey Foundation.
小題1: The underlined word “Bipedalism” in Paragraph 2 probably means____.
A.moving sidewaysB.walking upright
C.walking on four legsD.running fast
小題2:We can infer from the passage that____.
A.scientists have no idea on how humans’ walking on two legs came about
B.scientists have had different views on why chimps walk on four legs
C.scientists have had different views on how humans’ walking on two legs vame about
D.scientists have had similar views on how humans’ walking on two legs came about
小題3:What is Paragraph 4 mainly about?
A.How chimps saved energy.
B.Why chimps didn't walk on two legs.
C.David Raichlen studied chimps.
D.Different chimps consumed different energy.
小題4: According to the passage, humans walk upright in order to____.
A.conserve energyB.differ from other animals
C.free their brainsD.strengthen their legs

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