In the past, man did not have to think about the protection of his environment. There were few people on the earth, and natural resources seemed to be____36____ .
Today things are___37_____, the world has become too___38____ . We are using up our natural resources too quickly, and at the same time we are___39____ our environment with dangerous chemicals. If we continue to do this, human life on the earth ___40____survive.
Everyone___41_____ today that if too many fish are taken from the sea, there will soon be none left. Yet, with modern fishing__42_____ , more and more fish are caught. We know that if too many trees are cut down, ___43____will disappear and nothing will grow on the land. Yet, we ___44_____to use bigger and more powerful machines to __45____more and more trees.
We realize that if rivers are polluted with waste products from factories, we will die.___46_____, in most countries wastes are ___47______put into rivers or into the sea, and there are _48_____laws to stop this.
We know, too, that if the___49____ of the world continues to rise at the present rate, in a few years, there will not be enough___50_____. What can we do to solve these problems ?
It we eat more vegetables and less___51____, there will be more food available for everyone. Land that is used to grow crops __52_____five times more people than land where animals are kept.
Our natural resources will _53_____longer if we learn to recycle them. The world population will not rise so quickly if people use modern methods of birth__54_______ .
Finally, if we educate people to think about the problems, we shall have a better and clearer ___55____in the future.

【小題1】
A．beautifulB．unlimitedC．rareD．valuable
【小題2】
A．commonB．the sameC．changeableD．different
【小題3】
A．crowdedB．smallC．dirtyD．busy
【小題4】
A．protectingB．savingC．pollutingD．fighting
【小題5】
A．may notB．will notC．shall notD．could not
【小題6】
A．wondersB．realizesC．considerD．discovers
【小題7】
A．polesB．boatsC．methodsD．ideas
【小題8】
A．mountainsB．the seaC．treesD．forests
【小題9】
A．continueB．haveC．oughtD．will go on
【小題10】
A．growB．plantC．saveD．cut down
【小題11】
A．ThusB．HoweverC．Generally speakingD．Therefore
【小題12】
A．stillB．evenC．a(chǎn)lsoD．certainly
【小題13】
A．too manyB．a(chǎn) fewC．someD．few
【小題14】
A．productionB．pollutionC．populationD．revolution
【小題15】
A．housesB．vegetablesC．foodD．lives
【小題16】
A．fruitB．meatC．fishD．grain
【小題17】
A．feedsB．increasesC．suppliesD．helps
【小題18】
A．useB．stayC．keepD．last
【小題19】
A．controlB．bornC．planD．reward
【小題20】
A．natureB．seaC．planetD．Forest


【小題1】B
【小題2】D
【小題3】A
【小題4】C
【小題5】B
【小題6】B
【小題7】C
【小題8】D
【小題9】A
【小題10】D
【小題11】B
【小題12】A
【小題13】D
【小題14】C
【小題15】C
【小題16】B
【小題17】A
【小題18】D
【小題19】A
【小題20】C 

解析試題分析：
【小題1】B。beautiful“美麗的”， unlimited“無限的”；rare“稀罕的，稀少的”； valuable“有價值的”。根據(jù)前面的There were few people on the earth可知此處指在過去資源是無限的。
【小題2】D。與過去形成對比，表示現(xiàn)在情況不同了。
【小題3】A。根據(jù)第一段的There were few people on the earth可知過去地球上人很少，而現(xiàn)在人很多、很擁擠。
【小題4】C。protect“保護”，save“節(jié)約，拯救”； pollute“污染”；fight“斗爭，打架”。根據(jù)句中的with dangerous chemicals可知此處指人們正在用有害的化學物質(zhì)污染環(huán)境。
【小題5】B。句意：如果我們繼續(xù)這樣，地球上的人類就不能生存下去。
【小題6】B。wonder“想知道”； realize“意識到”； consider“考慮，認為”； discover“發(fā)現(xiàn)”。根據(jù)第四段的We realize that if rivers are polluted with waste products from factories,  we will die. 可知應選B。句意：現(xiàn)在每個人都意識到如果從海中捕撈太多的魚，不久就沒有魚了。
【小題7】C。modern fishing methods表示“現(xiàn)代的捕魚方法”。
【小題8】D。根據(jù)前面的We know that if too many trees are cut down可知此處應選forests（森林）。
【小題9】A。根據(jù)Yet可知，雖然人們意識到過度砍伐樹木的危害，但人們還是繼續(xù)那樣做。干擾項是C、D。若選C、D，keep與 go on后面要跟v. -ing形式。
【小題10】D。根據(jù)Yet可知，雖然人們意識到過度砍伐樹木的危害，但人們?nèi)匀挥么笮蜋C械砍伐樹木。
【小題11】B。根據(jù)上下文可知此處表示轉折，however經(jīng)常位于句首、句中或句末，且用逗號與主句隔開。but也表示轉折，但不用逗號與主句隔開。A、D兩項表示“因此”。
【小題12】A。句意：然而在很多國家，垃圾仍然被扔進河流或大海。
【小題13】D。根據(jù)語境可知此處應指幾乎沒有法律來制止這樣做。
【小題14】C。production“生產(chǎn)”;  pollution“污染”;  population“人口”;  pronunciation“讀音”。根據(jù)句中的there will not be enough food以及下文的The world population will not rise so quickly可知此處應選C。
【小題15】C。solve these problems表示“解決這些問題”，干擾項是A、B。若選A，A項應為work out。若選B，B項應為deal with。
【小題16】B。句意：如果我們多吃蔬菜少吃肉，那么每個人就會有更多的食物可以吃。
【小題17】A。feed more people表示“養(yǎng)活更多的人”。
【小題18】D。句意：如果我們學會對資源循環(huán)利用，我們的自然資源就會更持久些。此處last是動詞，表示“持續(xù)”。
【小題19】A。birth control表示“計劃生育”。
【小題20】C。planet此處指“星球”，即我們的地球。
考點：考查環(huán)境類完型
點評：本文的話題是考生非常熟悉的話題—環(huán)境保護。整個完形填空大題，設空科學合理，考生不難從中領會大意，從而下手會比較順利，從選項中可以看出，本大題主要還是考查了詞匯的辨析與運用，但更加注重綜合語言能力的運用，需要根據(jù)故事情節(jié)，了解詞匯用法的同時，結合語境，做出準確的判斷

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