问题 填空题

我们生活的地球表面有一层厚厚的空气,它不仅起着调节气候的作用,同时还是人类和一切动植物的生命支柱。此外,空气还是人类进行生产活动的重要、廉价的自然资源,试回答:

(1)随着现代工业的发展,人类在进行生活、生产活动中,改变了部分地区空气的成分,损害了人体健康,影响了作物的生长,造成对自然资源以及建筑物的破坏。造成空气污染的有害物质,大致可分为_______ 和________两大类。从世界范围看,排入到空气中的气体污染物较多的是________、__________、________等。这些气体主要来自_______的燃烧和__________的废气。

(2)请将产生下列空气污染现象的原因的序号填入相应横线上:

A、大气中二氧化碳增加  B、二氧化硫、二氧化氮排入大气中  C、制冷剂氟利昂排入大气中

形成酸雨_________,      破坏臭氧层_________,     产生温室效应_________

(3)请写出两条防止空气污染,发展生产,改善环境的建议:

①___________________________;           ②______________________________。

答案

(1)有害气体;烟尘;二氧化硫(SO2);二氧化氮(NO2);一氧化碳(CO );化石燃料;工厂排放  

(2)B ;  C ;  A      

(3)研制和开发新能源;多植树造林(或汽车尾气安装净化装置或工厂废气经处理后再排放等)

选择题
阅读理解

(C)

In some countries where racial prejudice is acute, violence has so come to be taken for granted as a means of solving differences that it is not even questioned. There are countries where the white man imposes his rule by brute force; there are countries where the black man protests by setting fire to cities. Important people on both sides, who would in other respects appear to be reasonable men, get up and calmly argue in favor of violence--- as if it were a legitimate solution, like any other. What is really frightening, what really fills you with despair, is the realization that when it comes to the crunch(关键时刻), we have made no actual progress at all. We may wear collars and ties instead of war-paint, but our instinct remain basically unchanged. The whole of the recorded history of the human race, that tedious documentation of violence, has taught us absolutely nothing. We have still not learned that violence never solves a problem but makes it even acute. The sheer horror, the bloodshed(流血), the suffering mean nothing. No solution ever comes to light the morning after when we dismally contemplate the smoking ruins and wonder what hit us.

The truly reasonable men who know where the solutions lie are finding it harder and harder to get a hearing. They are despised, mistrusted and even persuaded by their own kind because they advocate such apparently outrageous things as law enforcement(执行). If half the energy that goes into violent acts were put to good use, if our efforts were directed at cleaning up the slums and ghettos, at improving living standards and providing education and employment for all, we would have gone a long way to arriving at a solution. Our strength is sapped by having to mop up the mess that violence leaves in its wake. In a well-directed effort, it would not be impossible to fulfill the ideals of a stable social programme. The benefits that can be derived from constructive solutions are everywhere apparent in the world around us. Genuine and lasting solutions are always possible, providing we work within the framework of the law.

72. What is the best title for this passage?

A. Advocating Violence.

B. Violence Can Do Nothing to Diminish Race Prejudice

C. Violence as a Legitimate Solution

D. Violence: The Instinct of Human Race

73. Recorded history has taught us __________.

A. violence never solves anything                  B. nothing

C. the bloodshed means nothing                   D. everything

74. It can be inferred that truly reasonable men ________.

A. can’t get a hearing                       B. are looked down upon 

C. are persecuted                          D. have difficulty in advocating law enforcement

75. According to the author, the best way to solve race prejudice is ________.

A. law enforcement                        B. knowledge        

C. nonviolence                            D. mopping up the violent mess