5. Many kinds of wild animals are.We must do something to save them.

   A. in fact      B. on holiday

   C. on time   D. in danger

4. Look!The boys football on the playground.

   A. plays                B. play

   C. are playing     D. played

3.

①Before you leave the room,please the light.

   A. turn on   B. turn off

   C. turn up   D. turn down

②I want to watch the basketball match. Would you please the TV?

   A. turn on      B. turn off

   C. turn down     D. turn up

②这个男孩的父母支付不起他的教育费用。

The boy's parents can't

for his education.

2.

①This type of mobile phone is so. expensive that I

can't it.

   A. afford     B. spend

   C. cost      D. pay

② 我希望每个人都积极参与体育运动。为什么不加人我们呢？

I hope everyone can the sports. Why not

?

1.

① Many young people planting trees on Tree Planting Day.

   A. joined         B. took part in

   C. attended     D. joined in

Ⅱ.阅读3a后判断下列句子正(T) 误(F)

() 1. Shark fin soup is famous in southern China.

() 2. The shark can swim without a fin.

() 3. Every year about 70 million sharks are caught and traded in this industry.

() 4. Most governments have developed laws to stop the sale of shark fins.

() 5. Scientific studies have shown that shark fins are good for health.

5. 采取行动

6. 公共交通

7. hear of

8. in danger

I.英汉互译，了解本课重点短语

1. 参加

2. 关掉

3. 付费;付出代价

4. 食物链