2. 空气污染
[2./图表描述段] Pollution is becoming more and more serious all over the world. As is shown in the cartoon, two cars are giving off waste gas and three people are trying to avoid breathing in the poisonous gas by masking their face with their hands. The poisonous gas sent off by factories, domestic appliances and automobiles has made the air unhealthy for people to breathe.
[5.意义阐述段] There is no denying that automobiles are indications of civilization, progress and development; nevertheless , automobiles cause the serious problem of air pollution. Scientists have warned that unless effective measures are taken, the problem of pollution will eventually get out of hand. Actually, people are showing a real concern over the problem. For example, there is an increasingly loud voice from the public for firm action against pollution from automobiles.
[10建议措施段]Indeed, the earth is our home and we have the duty to take care of it for ourselves and for our descendants. In my opinion, we should work out concrete solutions to the problem of pollution from poisonous gas given off by automobiles. For example, the automobiles should be equipped with a device which can dispose of waste gas so as to prevent it from polluting air. Only in this way can we really solve the problem of air pollution caused by automobiles.
牛津实用英语语法:145 肯定句中 must和 have to的区别
牛津实用英语语法:159 can't和couldn't表示否定的推断
牛津实用英语语法:170 see和 hear
牛津实用英语语法:173用来表示习惯性动作
牛津实用英语语法:174其他用法
牛津实用英语语法:149 表示无义务的各种形式
牛津实用英语语法:168 通常不用于进行时的动词
牛津实用英语语法:227 if和in case
牛津实用英语语法:221 条件句类型1
牛津实用英语语法:175形式
牛津实用英语语法:142 ought/should与进行式连用
牛津实用英语语法:167 其他可能的用法
牛津实用英语语法:187与for和since连用
牛津实用英语语法:205 表示意图的 be going to和 will+动词原形
牛津实用英语语法:150 need not与其他各种形式的区别
牛津实用英语语法:158 have/had表示推断
牛津实用英语语法:166 用法
牛津实用英语语法:180过去式其他用法
牛津实用英语语法:196 过去完成时在间接引语中的用法
牛津实用英语语法:153 needn't have(done)和did't have done
牛津实用英语语法:189现在完成时和一般过去时
牛津实用英语语法:199 一般现在时用来表示将来
牛津实用英语语法:179过去式主要用法
牛津实用英语语法:218 从句时态的呼应
牛津实用英语语法:157 must与may/might的比较
牛津实用英语语法:206 be going to 形式用于预测
牛津实用英语语法:160 will和should表示假设
牛津实用英语语法:194 过去完成时形式和用法
牛津实用英语语法:161 dare
牛津实用英语语法:197 过去完成进行时形式与用法
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