4. The chemical plant produces terrible gas.

3. Look! The factory is pouring a lot of waste water into the river.

2. The louder the noise you make, the more hearing loss you risk.

Ⅶ. 书面表达。(15分)

你听说过“地球日”吗？每年的4月22日全世界都庆祝这个特别的日子。目的是号召全世界的人们来爱护我们的地球。我们该怎样以实际行动来庆祝这个日子呢？请你写一篇短文，来阐述你的观点。不少于80词。

参考词汇：Earth Day, all over the world, celebrate, special, protect, call on

听力材料：

Unit 2　 Topic 1

Ⅰ. 1. Light population is harmful to our eyes.

51.　　　 　52.　　　 　53.　　　 　54.　　　 　55.　　　

50. There are 　　　(几个) eggs on the plate.

Ⅵ. 综合填空。(5分)

用方框中所给词的适当形式填空。

　 loud, live, pollution, easy, pollute　

Life today is much better. However, there are new problems. One of the biggest is pollution. Water 　51　 　has made rivers dirty. It kills fish and 　52　 　our drinking water. Noise pollution makes us speak 　53　 　and become angry more 　54　 . Air pollution is the most serious kind of pollution. It’s bad for all 　55　 　things in the world.

49. The living conditions have improved a lot with the development of 　　　(工业).

48. The air here is dirty that I can hardly 　　　(呼吸).

47. The 　　　(秘书) is writing a report now.

46. There is a clear 　　　(小溪) at the foot of the mountain.