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12.With the(61)development(develop) of industry,air pollution is getting more and more serious.In Beijing,many people suffer different kinds of illnesses because(62)ofair pollution.
   Air pollution is caused by the(63)following (follow ) reasons:about half of the problem is caused by vehicles.There are more and more cars,buses on the roads,and they give off(64)poisonous(poison) gases.25% of air pollution is caused by factories.Another factor is the smokers.Smoking not only does harm to their health but to others.(65)Besidesthese,about 10% of air pollution is caused by other reasons.
       We (66)shouldtake some measures to fight(67)againstpollution.New fuel can be used to take(68)theplace of gas.We can also plant more trees.If everybody realizes the (69)importance(important) of environment and does something to stop pollution,the problem will(70)be solved(solve).

分析 本文作者主要分析了造成空气污染的原因以及危害,并且提出了解决污染问题的方法;文中作者讲到:随着工业的发展,空气污染越来越严重,在北京,许多人因空气污染而患上了不同种类的疾病;造成空气污染的原因有:有一半的原因来自车辆排放的有毒气体;25%的空气污染是由工厂造成的;还有一个原因来自吸烟者;此外,大约 10%的空气污染是由其他原因造成的;采取的措施:用新的燃料代替天然气;种植更多的树木;每个人都应该意识到保护环境的重要性,做一些事情来停止污染.

解答 答案:
61.development  考查名词    此处用在定冠词the之后,所以应使用名词;指"工业的发展";故填development;
62.of    考查固定短语     固定短语because of"因为";其后通常跟名词(名词短语)或代词作宾语;故填of;
63.following    考查现在分词   此处在句中作定语,修饰名词reasons并与该名词构成主谓关系,意为:理由如下;故填following;
64.poisonous    考查词形转换以及形容词   此处用来修饰名词gases;所以应使用名词poison的形容词形式,意为:有毒气体;故填poisonous;
65.Besides    考查介词    根据上文已经讲述了三种导致空气污染的原因可知,此处讲的应是除了以上三种原因之外,还有的其原因;except意为"除…之外(不再有)";besides意为"除…之外(还有)";故填Besides;
66.should   考查情态动词   根据上文讲到的污染问题可知,本句的意思应是:我们应该采取一些措施来与污染作斗争;故填情态动词should;
67.against  考查固定短语    固定短语fight against 意为:对抗;反对;与…作斗争;根据上文可知,此处指的应是:与污染作斗争;故填against;
68.the   考查固定短语    固定短语take the place of 意为:代替,取代;本句的意思是:新的燃料可以用来代替天然气;故填the;
69.importance  考查词形转换以及名词     此处用在定冠词the之后,指保护环境的重要性;故填importance;
70.be solved   考查语态     分析句意可知,此处的主语the problem与动词solve构成动宾关系;所以应使用被动语态;由于此处用在助动词will之后,并与其构成了将来时态的被动语态;故填be solved.

点评 语法填空主要考查了各种语法知识在短文中的具体运用.做本题时,需要在正确理解短文的前提下,逐句分析句意以及所考查到的语法现象;因此在平时的学习中,应熟练掌握各种语法知识,其中包括词法,句法,各种时态语态以及虚拟语气等.

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