1. No matter how much you want to bathe ,it just isn’t safe .

　 不管你多么想洗海水澡，反正这都很不安全。

　　 这里是由no matter how 引出让步状语从句。

　 　但是一定要注意：no matter how(however) 既可以接形容词和副词，表示程度状语的作用；又可以直接接句子，表示方式状语。请对比下面两个句子：

　　 e.g. No matter how small the wheat ear is ,we should pick it up .

　 　　无论麦穗有多小，我们都该把它拾起来。(程度状语)

　 No matter how he tried, he failed at all.

　 无论他怎样试，他均为成功。(方式状语)

　 No matter 之后可以是任何 wh-word 如，what ,who which ,when ,where 等。

　　 e.g. No matter what she says ,he wouldn’t listen to her .

　 不管她说什么，他就是不听她的。

　　 No matter who says it ,he wouldn’t listen .

不管谁说的，他就是不听。

No mater where he works ,he is always working hard .

无论他在哪儿干活，他都是很卖力气。

5.How many different things are reused in China ?

　 [释疑解惑]　

3.What types of waste are discussed in the text ?

you tell what ways are used in the world to recycle waste ?

2.What kind of pollution is mentioned in the text ?

　 [课文内容预习提纲]　

　　 本单元22和23两课的学习中要掌握下列线索：

1.Why must we stop pollution ?

　　 VII. 书面表达: 15%

　　 魏明的美国朋友杰克开始学习中国文学(Chinese literature)。他来信询问鲁迅其人。请你作为魏明回信介绍鲁迅。

　　 1)鲁迅是著名的中国作家。他不仅是作家、思想家、翻译家，而且还是中国现代文学的开创者(founder)。

　　 2)他的小说被议程多种语言，并被拍成电影，如《阿Q正传》(The True Story of Ah Q)、《祝福》(The New Year’s Sacrifice)，这两部电影都深刻地揭露了旧社会(expose sharply)，毛主席(Chairman Mao)对鲁迅有过高度的评价。他的一些作品还被选入了大、中学的课本。

　　 VI. 短文改错: 10%

This is a quiet little village thirty　　 　　　　　　　　　 1.__________

years ago. Now, every Sundays hundreds of　　　　　　 　　　　 2.__________

cars and coaches pass across the High Street　　　　　　 　　　　 3.__________

at a very danger speed, I think.　　　　　　　　　　　 　　　　　　　 4.__________

They make the village almost so noisy as　　　　　　　 　　　　 5.__________

the streets of a large town. When I was　　　　　　　　 　　　　 6.__________

a boy, I was used to enjoy riding on the　 　　　　　　　　　　　　　　 7.__________

back of the big horses. Today there are　　　　　　　　 　　　　 8.__________

very few horses work on the farms. They　　　　　　　 　　　　 9.__________

drive tractors, no horses.　　　　　　　　　　　　　 　　　　 10.__________

B

　　 Waves are beautiful to look at, but they can destroy ships at sea, as well as house and buildings near the shore. What causes waves? Most waves are caused by winds blowing over the surface of the water. The sun heats the earth, causing the air to rise and the winds to blow. The winds blow across the sea, pushing little waves into bigger and bigger ones.

　　 The size of a wave depends on how strong the wind is, how long it blows, and how large the body of water is. In a small bay big waves will never build up. But at sea the wind can build up giant, powerful waves.

　　 A rule says that the height of a wave (in meters) will usually be no more than one–tenth of the wind’s speed (in kilometers). In other words, when the wind is blowing at 120 kilometers per hour, most waves will be about twelve meters. Of course, some waves may combine to form giant waves that are much higher. In 1933 the United States Navy(海军) reported the largest measured wave in history. It rose in the Pacific Ocean to a height of thirty–four meters

　　 1．One can guess the height of a wave by knowing _____________.

　　 A．how fast the wind is blowing

　　 B．how long the wind blows

　　 C．how large the body of water is　

　　 D．how the wave is built up

　　 2．The largest measured wave in history was in ___________.

　　 A．the Indian Ocean

　　 B．the Atlantic Ocean

　　 C．the Pacific Ocean

　　 D．the Mediterranean Sea

　　 3．When the wind is blowing at 80 kilometres per hour, the height of most waves will be _______.

　　 A．about one meter

　　 B．about eight meters

　　 C．about eighty meters

　　 D．about ten meters

　　 4．Air rises when __________.

　　 A．the wind is blowing

　　 B．the body of water is large

　　 C．this is a powerful earth

　　 D．the sun heats the earth

　　 5．The best title for this selection is ____________.

　　 A．What causes Waves?

　　 B．The Largest Waves in history

　　 C．Beautiful Waves

　　 D．Waves in Pacific Ocean