. The big snow lasted nearly half a week. What was worse, they were trapped in the mountain and badly ________ food.

A．in search of

B．in the hope of

C．in want of

D．in charge of

 

【答案】

C

【解析】略

 

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科目：高中英語(yǔ) 來(lái)源：2015屆江蘇淮安漣水縣第一中學(xué)高一下期期末考試英語(yǔ)卷（解析版） 題型：閱讀理解

WASHINGTON—Two-thirds of the world’s polar bear population could be gone by 2050 if predictions of melting sea ice hold true, the US Geological Survey reported on Friday.

The fate of polar bears could be even worse than that estimate, because sea ice in the Arctic might be disappearing faster than the available computer models predict, the geological survey said in a report aimed at determining whether the big white bear should be listed as a threatened species.

“There is a definite link between changes in the sea ice and the welfare of polar bears,” said Steve Amstrup, who led the research team. He says Arctic sea ice is already at the lowest this year and is expected to retreat(退卻) farther this month.

That means that polar bears—some 16,000 of them -- will disappear by 2050 from parts of the Arctic where sea ice is melting most rapidly, along the north coasts of Alaska and Russia, researchers said in a telephone briefing(簡(jiǎn)報(bào)).

Other polar bears could survive beyond that date but many of those could be gone by 2100, Amstrup said. By this century’s end, the only polar bears left might live in the Canadian Arctic islands and along the west coast of Greenland.

“It is likely to result in loss of approximately two-thirds of the world’s current polar bear population by the mid 21st century,” the report’s executive summary said.

“Because the observed trajectory(軌跡)of Arctic sea ice decline appears to be underestimated by currently available models, this assessment of future polar bear status may be conservative(保守的).”

In January, the US Fish and Wildlife Service proposed listing the polar bear as a threatened species, noting polar bears depend on sea ice as a platform to hunt seals, their main food.

Without enough sea ice, polar bears would be forced onto land, but they are poor hunters once they get out of the water and ice, the researchers said. The bears’ disappearance would probably take place as young cubs(幼獸)failed to survive to adulthood and females were unable to reproduce successfully.

1.What was the US Geological Survey intended to do?

A. To determine whether the polar bear was in danger.

B. To measure how fast the sea ice melts in the Arctic.

C. To check the predictions of the computer models.

D. To find out the exact number of the polar bear.

2.What causes the polar bears to disappear by 2050?

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3.The key to preventing polar bears dying out seems to _______________.

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C. make sure there is enough sea ice in the Arctic

D. provide chances for adult polar bears to reproduce

 

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科目：高中英語(yǔ) 來(lái)源：2012-2013學(xué)年廣東省高三2月月考英語(yǔ)試卷（解析版） 題型：信息匹配

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Keeping pace with teachers is a good way to study．Teachers are experienced and their plans are systematic．But remember to work m a way that suits you．It's also important to team from past mistakes．Keep a notebook to make a record of the mistakes you make - it'll help you avoid making the same ones later．

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This time of life may be hard, but you're not alone．You may be busy studying, but you can show your care by calling yow friends or sending a short message．Don't let your friendships die．Some boys and girls in my class were in love, but I'd advise against a relationship at this stage．

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The person who plays well, studies well. Having a lot of schoolwork doesn’t mean having to give up on every other activity. I played basketball or took a walk to relax when I felt tired. Time out is not a waste of time but helps you study more efficiently.

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Besides taking the big exam, you have other choices for college. I took the independent enrollment (自主招生) exam held by Peking University and some other students even prepared to study abroad. Pay attention to any relevant information you can find, whether it’s from school, the news media or another source.

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Besides learning from the textbooks, students can also learn a lot from traveling from place to place. In different places you will see different things, meet different people and have different experiences. If you are curious enough, you can explore deeper into the area and obtain more useful information, which serves as your new knowledge.

下面同學(xué)各自感興趣的內(nèi)容或需要解決的問(wèn)題，請(qǐng)配對(duì)他們最適合參加的討論組。

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1._____________________

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3.____________________

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4.___________________

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5.___________________

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