It is very strange that a number of animals died suddenly. But this happened all over the world these years. For example, more than 8,000 turtle doves(斑鸠) died in Italy; about 500 birds died in a street in Sweden; over 2 million fish were dead on the beach and thousands of blackbirds were dead in America.

Scientists said the animals might die of cold weather and starvation（饥饿）. But some people have other guesses.

★Aliens came to the Earth and killed the animals. They will kill some people next time.

★Some people killed the animals; they did some special experiments secretly on them.

★People polluted the air and the water. A t last the pollution killed the animals.

★A kind of fierce animal attacked those animals.

What is your idea?

【小题1】The underlined phrase “a number of” means “_______”in the passage.

A．many	B．a few of
C．all of	D．none of

【小题2】Which country is NOT mentioned in the passage?

A．Sweden

B．Italy

C．America

D．China

【小题3】Which of the following is NOT the reason for animals’ death according to the passage?

A．Aliens came to the Earth and killed the animals.

B．The animals might die of heavy storms or earthquakes(地震).

C．The special experiments made the animals die.

D．Other animals attacked them.

【小题4】What’s the best title for this passage?

A．The Serious Pollution	B．Protect the Animals
C．The Animal Experiment	D．Who Killed the Animals?