Question

RIVER DOLPHIN RUNNING OUT OF TIME

The Yangtze dolphin is the only kind of dolphin that lives in freshwater all its life. Scientists say that the finless freshwater dolphin that has lived in the Yangtze River for over 20 million years will die out in 15 years. It’s in danger of disappearing forever.

Dangers:

■Dredging(挖掘) of their habitat

■Heavy boat traffic in the Yangtze River

■Insecticide(殺蟲劑) and mercury(汞)

No fin（鰭）on the back—

Color:Adults have light gray color—

Young ones have darker gray color

Main diet: Weight:30kg~45kg Size:1.2m~1.9m

Fish

Shrimp

Adult

compared to

human swimmer

1.How long has the Yangtze dolphin lived in the Yangtze River?

A.For 20 million years.

B.For less than 20 million years.

C.For more than 20 million years.

2.What is NOT a danger to the Yangtze dolphin?

A.Dredging the river bed or heavy boat traffic in the river.

B.Insecticide and mercury.

C.Swimmers.

3.How heavy is an adult Yangtze dolphin?

A.19 kg. B.15 kg. C.30 kg~45 kg.

4.What does the Yangtze dolphin mainly eat?

A.Fish and shrimps. B.Fish. C.Shrimps.

5.In the first paragraph the underlined word “finless” means _____ in Chinese.

A.有鰭的 B.無鰭的 C.溫順的

Answer 1