阅读短文，根据短文内容，从从A、B、C、D四个选项中，选出最佳答案．
Australia is the largest island in the world. It is a little smaller than China. It is in the south of the earth. Australia is big, but its population is small. The population of Australia is nearly as large as that of Shanghai.
Enough laws (法律) have been made to fight against pollution. The cities in Australia have got little air or water pollution. The sky is blue and the water is clean. You can clearly see fish swimming in the rivers. Plants grow very well.
Last month we visited Perth, the biggest city in Western Australia, and went to a wild flowers' exhibition (展览). There we saw a large number of wild flowers we had never seen before. We had a wonderful time. Perth is famous for its beautiful wild flowers. In spring every year Perth has the wild flowers' exhibition. After visiting Perth, we spent a day in the countryside. We sat down and had a rest near a path at the foot of a hill. It was quiet and we enjoyed ourselves. Suddenly we heard bells ringing at the top of the hill. What we saw made us pick up all our things and run back to the car as quickly as we could. There were about three hundred sheep coming towards us down the path.
Australia is famous for its sheep and kangaroos. After a short drive from any town, you will find yourself in the middle of white sheep. Sheep, sheep, everywhere are sheep.
小题1:Australia is .
A．the largest country in the world
B． larger than China
C．as large as Shanghai
D．not so large as China小题2:Enough laws have been made to .
A．increase the population
B．grow more plants
C．fight against pollution
D．show wild flowers小题3:Perth is .
A． the capital of Australia
B． in the west of Australia
C． in the east of Australia
D． the biggest city in Australia小题4:In Perth you may visit a wild flowers' exhibition in .
A．October
B．January
C．May
D．July小题5:Which of the following sentences is TRUE?
A．All the big cities in Australia are seriously polluted.
B．Australia is famous for its sheep, kangaroos and large population.
C．We ran back to the car because we were in the middle of the white sheep.
D．If you go to the countryside in Australia, you will see a large number of white sheep.
小题1:D
小题2:C
小题3:B
小题4:A
小题5:D
题目分析：短文大意：澳大利亚是世界上最大的岛屿。它比中国小一点。它是在地球的南部。澳大利亚大，但它的人口少。澳大利亚的人口几乎和上海一样多。澳大利亚以绵羊和袋鼠而著名。从任何城市经过短短的车程，你会发现你在在白色的羊群中。
小题1:细节理解题。根据第一段前两句Australia is the largest island in the world. It is a little smaller than China.可知选D。
小题2:细节理解题。根据第二段第一句Enough laws (法律) have been made to fight against pollution.可知选C。
小题3:细节理解题。根据第三段开头Last month we visited Perth, the biggest city in Western Australia,可知选B。
小题4:细节理解题。根据第三段中In spring every year Perth has the wild flowers' exhibition.和地理知识可知选A。
小题5:细节理解题。根据短文最后After a short drive from any town, you will find yourself in the middle of white sheep. Sheep, sheep, everywhere are sheep.可知选D。