_小題1:___There were few people on the earth, and natural resources seemed to be unlimited. Today things are different. The world has become too crowded. We are using up our resources too quickly, and at the same time we are polluting our environment with dangerous chemicals _小題2:__.
Everyone realizes today if too many fish are taken from the sea, there will soon be none left. Yet, with modern fishing methods, more and more fish are caught. We know that if too many trees are cut down, forests will disappear and nothing will grow in the land. Yet , we continue to use bigger and more powerful machines to cut down more and more trees. __小題3:__ However, in most countries waste products are still put into rivers or into the sea, and there are few laws to stop this. We know, too , that if the population of the world continues to rise, in a few years, there will not be enough food.
_小題4:_ If we eat more vegetables and less meat, there will be more food available for everyone. Land that is used to grow crops feeds five times more people than land where animals are kept. __小題5:_ the world population will not rise so quickly if people use modern methods of birth control. Finally, if we educate people to think about the problems, we shall have a better and cleaner planet in the future.
A．What can we do to solve these problems?
B．So we should try our best to protect the environment.
C．In the past, man didn’t have to think about the protection of his environment.
D．We realize that if the rivers are polluted with waste products from factories, we will die.
E. Why do some people do so foolish things?
F. If we continue to do this, human life won’t survive in the future.
G. Out natural resources will last longer if we learn to recycle them.

小題1:C
小題2:F
小題3:D
小題4:A
小題5:G

試題分析：本文通過現(xiàn)在與過去情況的對(duì)比,提出了保護(hù)環(huán)境的重要性。人們知道捕魚太多會(huì)造成漁業(yè)資源的枯竭，也知道如果過多砍伐樹木會(huì)造成森林的消失，更知道過量的廢物排放會(huì)造成河流的污染,然而人們對(duì)此還是明知故犯，作者對(duì)此類現(xiàn)象在文中進(jìn)行了分析,而且提出了相應(yīng)的解決方法。
小題1:C考查對(duì)上下文的推理判斷能力。根據(jù)下文There were few people on the earth, and natural resources seemed to be unlimited.可知此處是講述過去的情況,而C選項(xiàng)In the past, man didn’t have to think about…..也是講述過去的狀況，所以C選項(xiàng)內(nèi)容符合語境,故答案選C.
小題2:F考查對(duì)上下文的推理判斷能力。上文作者提到世界人口的激增與污染等問題,縱觀選項(xiàng),F項(xiàng)內(nèi)容涉及到了這些現(xiàn)象的后果,故能承接上文,答案選F.
小題3:D考查對(duì)上下文的推理判斷能力。根據(jù)副詞 However可知此處內(nèi)容是關(guān)于污染的,而且和in most countries waste products are still put into rivers or into the sea構(gòu)成轉(zhuǎn)折關(guān)系,故答案選D.
小題4:A考查對(duì)上下文的推理判斷能力。在本段中作者提到了一些解決問題的方法,比如生產(chǎn)糧食的土地比飼養(yǎng)動(dòng)物的土地能夠養(yǎng)活更多的人,因此人們要多吃蔬菜,少吃肉, 以及控制人口增長(zhǎng)等,由此判斷A選項(xiàng)內(nèi)容能夠起到引領(lǐng)下文的作用,故答案選A.
小題5:G考查對(duì)上下文的推理判斷能力。作者在本段中提到了一些解決問題的方法,比如控制人口增長(zhǎng)等 ，而G選項(xiàng)”學(xué)會(huì)資源再利用”也是解決問題的方法之一,內(nèi)容符合語境,由此判斷G為正確選項(xiàng).
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