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Throughout history man has changed his physical environment in order to improvehis way of life.
With the tools of technology he has altered many physical features of the earth. Hehas transformed woodlands into farmland, and made lakes and reservoirs out of riversfor irrigation purposes of hydroelectric power. Man has also modified the face of theearth by draining marshes and cutting through mountains to build roads and railways.
However, man's changes to the physical environment have not always had beneficialresults. Today, pollution of the air and water is an increasing danger to the health of theplanet. Each day thousands of tons of gases come out of the exhausts of motor vehicles;smoke from factories pollutes the air of industrialized areas and the surrounding areas ofcountryside. The air in cities is becoming increasingly unhealthy.
The pollution of water is equally harmful. In the sea, pollution from oil is increasingand is killing enormous numbers of algae, fish and birds. The whole ecological balanceof the sea is being changed. The same problem exists in rivers. Industrial wastes havealready made many rivers lifeless.
Conservationists believe that it is now necessary for man to limit the growth oftechnology in order to survive on earth. 《现代大学英语(精读)》(外语教学与研究出版社)是由北京外国语大学英语系编写的一套供大学英语专业学生使用的精读教材。在使用过程中,广大师生普遍反映起点高、难度大。为了帮助广大师生及英语自学者更好地学习和理解这套教材,我们组织了4所高校具有丰富教学经验的教师精心编写了这套《现代大学英语(精读)标准同步测试》(1—4册)。
本书是配合《现代大学英语(精读)》(外语教学与研究出版社)而编写的供大学英语专业二年级学生使用的标准同步测试题。该书以教材为基准,在吃透教材的前提下,力求题目的设置与教材的内容相对应,题题是经典,句句有依据。