Many of the world's pollution problems have been caused by the crowding of large groups of

Many of the world's pollution problems have been caused by the crowding of large groups of people into the cities．Supply for the needs of the people leads to further by industry．If the rapid increase of world population continues at the present rate, there may be much greater to human beings．
Some scientists speak of the increase in numbers of people as population pollution''．
About 2,000 years ago, the world population was about 250 million．It a billion in 1850．By 1930 the population was two billion．It is now six billon．It is to double by the year 2020．If the population continues to grow at the same rate, there will be 25 billion people in the a hundred years from now．
Man has been the earth's resources more and more over the past years．Some of them are almost gone．Now many people believe that man's greatest problem is how to control the of the population．The material supplies in the world will be far from enough to the human population if the present rate of increase continues．
There is already over-crowding in many cities and starvation in some countries．Many people believe that human survival in the future on the answer to the question．
【小题1】A．progressB．pollutionC．educationD．production【小题2】A．dangerB．harmC．benefitD．hardship【小题3】A．gotB．tookC．broughtD．reached【小题4】A．suggestedB．hopedC．expectedD．said【小题5】A．worldB．countryC．starD．end【小题6】A．discovering[B．usingC．diggingD．destroying【小题7】A．seriouslyB．dangerouslyC．rapidlyD．steadily【小题8】A．existenceB．startC．growthD．birth【小题9】A．increaseB．starveC．construct D．support【小题10】A．dependsB．agreesC．savesD．passesB

(答案→)B 解析：世界人口问题往往是由大量人口涌入城市造成的。城市人口的增长给城市的交通，设施等带来了巨大的压力。人口的迅速增长和对地球资源的不合理利用也使得自然资源濒临枯竭，人类未来的生存取决于人们如何去解决这些问题。【小题1】B名词辨析。A．进步；B．污染；C．教育；D．产品。根据前句内容Many of the world's pollution problems have been caused by…….可知人口大量涌入城市造成了污染问题，而再根据空前的further推断此处讲这些人们的需求造成进一步的污染，故答案选B。【小题2】B名词辨析。A．危险；B．伤害；C．益处；D．苦难。从情理可知污染会给人带来危害，故答案选B.【小题3】D。动词辨析。A．得到；B．带走；C．带来；D．到达。前句内容提到在2000年以前人口是250million，从1850年人口增长到十亿应该用动词“达到”，故答案选D。【小题4】C。动词辨析。A．建议；B．希望；C．期望；D．说。从上文的数字可以看出世界人口是一直在增长，所以下文是推断2020的人口数，故答案选C。【小题5】A。名词辨析。A．世界；B．国家；C．星；D．结尾。根据上文内容可知文章讲述的是世界人口问题，所以答案选A。【小题6】B。动词辨析。A．发现；B．使用；C．挖；D．毁灭。从下文内容Some of them are almost gone可以推断此处指人们对资源的使用，故答案选B。【小题7】C。副词辨析。A．严肃地；B．危险地；C．迅速地；D．牢固地。根据前后句内容可知资源的枯竭是由于人们对资源的过度使用造成的，故答案选C。【小题8】C。名词辨析。A．存在；B．开始；C．生长；D．出生。上文提到人口的急剧增长带来了很多问题，由此判断如果想要解决资源问题，就要控制人口的增长， 故答案选C。【小题9】D。动词辨析。A．增加；B饿死；C．建造；D．支持。根据上文内容可知世界资源匮乏，所以不能供给更多人口去利用， 故答案选D。【小题10】A。动词辨析。A．依靠；B．同意；C．节约；D．通过。从情理判断环境污染问题会直接影响着人类的未来，换句话说，对环境污染的解决情况就决定着人类未来的生存，故答案选A。

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