Question

以“Air Pollution”为题用英语写一篇短文，内容要点须包括：

　　1．空气污染已成为影响人们健康的严重问题，特别是在发达国家；

　　2．主要根源是各种车辆(vehicle)散发大量的一氧化合物(monoxide)；

　　3．过去人们只期望自然改变，现在已采取措施不让车辆排放废气；

　　4．用太阳能代替汽油已在一些发达国家试验。

字数要求：100---120

    太阳能：solar

Answer 1

答案：略
解析：

Air pollution is now becoming a serious problem to people's health, especially in some developed countries, where pollution is increasing fast. One of the main causes of air pollution is the vehicles which give off a poisonous gas called monoxide. In the past people in big cities could do nothing but wait for things to be changed naturally. Now something has been done to prevent vehicles from sending waste gases into the air. In some developed countries, people are doing experiment so that they can make use of solar energy instead of oil. 　　注：此篇书面表达较难，其中应掌握一些句型和词组表达一种说明文的内容。如a problem to 表示…的问题；give off = send out表示散发出；do nothing but do sth。只能做某中，prevent…from doing sth。阻止某人做某事。so that表示目的，以至于…。 　　另外，写这种文章时，初学者应多用简单句，多用学过的句型。