题目内容：

    Sydney's Royal Botanic Gardens are to start a war on gray-headed flying foxes. These super bats have invaded one of Australia’s most famous public spaces. Officials have said the animals are destroying trees and have to move on.

These unwanted guests at Sydney’s Royal Botanic Gardens look like tiny foxes with wings. Officials have estimated there are about 11,000 of them living in the picturesque harbor-side park. After inspecting damage to dozens of trees they now believe there are twice as many as previously thought. Branches have been breaking under the weight of these furry invaders and their droppings have been poisoning plants.

Help may well be at hand, however, in the shape of the ordinary garbage bin. The gardens’ director Dr. Tim Entwistle hopes the unpleasant sounds of crashing bin lids will agitate the flying foxes and force them to move on. “The way to disturb them is to use noises, so we’ve used the loud noises made by rubbish bins in the past. You can also use speakers as long as you move the noise around, and what we’ll do is have a series of noises, at the beginning and end of the day. What we’ve found in the past is that the flying foxes leave the gardens and go somewhere else,” said Tim.

The gray-headed flying fox is Australia’s largest bat. It flies around at night using its eyes and a powerful sense of smell to search for fruit and flowers. Officials at the Royal Botanic Gardens in Sydney have said they’re optimistic the unwelcome colony can be uprooted. If and when the bats do move to other parts of the city they will of course then become someone else’s problem.

1.According to the passage, Why do people want to get rid of the flying foxes ?

A.Because the garden are important public places.

B.Because they are polluting the city.

C.Because many garbage bins have been damaged by them.

D.Because they’re threatening the survival of trees and other plants.

2.In order to get rid of the flying foxes, what are people doing?

A.They are shooting them.

B.They are using rubbish containers.

C.They are shaking the trees hard.

D.They are cutting some trees down.

3.Which of the following can replace the underlined “agitate” in Paragraph 3?

A.Excite B.kill

C.disturb D.discourage

4.What does the writer imply from the last paragraph?

A.The bats will still stay in the gardens.

B.Some area will have to deal with the bats.

C.The grey-headed flying fox often eat trees

D.The damage caused by the bats is serious