4. Oh, the fish smells bad. You'd better ______ it away right now.

A.throw
B.put
C.pick
D.keep

A

5. ______ down air pollution, we should take the bus or subway rather than drive a car.

A.Cut
B.To cut
C.Cutting
D.Being cut

B

任务：预习 Section A 3a,完成下面的表格。
| How do people get shark fins? | They 1. ______ and 2. ______ their fins and then 3. ______ the ocean. |
| What's the number of sharks caught and traded every year? | Around 4. ______. |
| By what percent have some kinds of sharks fallen in the last 20 to 30 years? | By 5. ______. |

| What have the environmental protection groups asked governments to do? | 6. ______ to stop the sale of shark fins. |

1. catch sharks 2. cut off 3. throw them back into 4. 70 million 5. over 90 percent 6. To develop laws