Lesson 2词语点击

"污染" pollute

[寓词于境]

阅读下列句子，注意pollute的用法。

I feel it is our duty not to pollute our environment.

A lot of rivers have been polluted.

[用法归纳] pollute vt. 弄脏，污染

[拓展]

pollution n. [U] 污染（物）

polluter n. 污染源；污染者

[即学即练] 将下列句子翻译成英语。

1. 骑自行车是很好的运动；而且还不污染空气。

2. 那些人正在清除海滩上所有的污染物。

Key:

1. Riding bikes is good exercise; moreover, it does not pollute the air.

2. The men were clearing all the pollution off the beach.

"禁止"ban

[寓词于境]

阅读下列句子， 注意ban的不同意思和词性。

Canada will ban smoking in all offices later this year.

Swimming is banned in this river.

The general also ended a ban on political parties.

[用法归纳] ban vt. 禁止，取缔; n. 禁止，禁令

[拓展]

ban sb. from doing sth. 禁止某人做某事

[温馨提示] ban的分词形式要双写n。

[即学即练] 将下列短语翻译成中文。

1. ban drugs 2. a parking ban 3. a total ban on nuclear arms

Key: