A thousand years ago Hong Kong was covered by a thick forest. As more and more people came to 　1　 in Hong Kong, these trees were cut down and burnt. Now there is 　2　 forest left, though there are still some small areas covered with trees. We call these woods.
Elephants, tigers and many 　3　 animals were living in the thick forest. When people came to live in Hong Kong, the 　4　 began to die out. Early farmers grew rice and 　5　 pigs and chickens in the valleys. They cut down the trees and burnt them. They needed 　6　 to keep themselves warm in winter, to cook their food and to keep away the dangerous animals. Elephants quickly disappeared because there was not enough food for them. So did 　7　 of the wolves and tigers. Monkeys and many other animals soon 　8　 in the same way.
You might think that there are no longer any animals in Hong Kong 　9　 in the zoos. But there are still about 36 different animals 　10　 there. One of the most interesting of Hong Kong's animals is the barking deer. These are beautiful little animals 　11　 a rich brown coat and a white patch (补丁) under the tail. They look like deer but they are much smaller. They are less than two feet（英尺） 　12　. They make a noise rather like a dog 　13　. In Hong Kong the barking deer has only a real enemy--　14　. People hunt these little animals though it is illegal (违法的). There are now not many barking deer left. So it is important 　15　 people to protect wild animals.

Are you carrying too much on your back at school? I’m sure lots of children of your age will say “Yes”. Not only the students in China have this problem, but children in the United States also have heavy school bags.
Doctors are starting to worry about young students’ back and neck because their school bags are too heavy for them.
“It’s hard for me to go upstairs with my heavy bag,” said Rick Hammond, an ll-year-old student in the USA.
Rick is among students who have school bags with two straps(带子),and many other students choose rolling(有滚轮的) bags.
But even with rolling bags ,getting upstairs is still a problem for children .Doctors say students should carry no more than 10% to 15% of their own body weight (重量)。
Scott Bautch, a back doctor, said children under Grade 4 should carry no more than 10% of their weight and older children shouldn’t stay with over 15% , because their bodies are still growing.
Teachers and parents should do some things to help children. And the best answer is to have less homework!
【小题1】From the passage we cam know that        .

Are you carrying too much on your back at school? I’m sure lots of children of your age will say “Yes”. Not only the students in China have this problem, but children in the United States also have heavy school bags.

Doctors are starting to worry about young students’ back and neck because their school bags are too heavy for them.

“It’s hard for me to go upstairs with my heavy bag,” said Rick Hammond, an ll-year-old student in the USA.

Rick is among students who have school bags with two straps(带子),and many other students choose rolling(有滚轮的) bags.

But even with rolling bags ,getting upstairs is still a problem for children .Doctors say students should carry no more than 10% to 15% of their own body weight (重量)。

Scott Bautch, a back doctor, said children under Grade 4 should carry no more than 10% of their weight and older children shouldn’t stay with over 15% , because their bodies are still growing.

Teachers and parents should do some things to help children. And the best answer is to have less homework!

1.From the passage we cam know that        .

A．only children in China carry too heavy school bags.

B．children in other countries don’t carry too heavy bags.

C．both children in China and the USA carry too heavy school bags.

D．only children in the USA carry too heavy school bags.

2.Children feel it hard for them to go upstairs because          .

A．they are too young.

B．their school bags are too heavy.

C．they are too heavy.

D．their parents don’t always go upstairs with them.

3.If a child carries a heavy school bag,        .

A．his back and neck may be hurt.

B．his head and arms may be hurt .

C．his hands may be hurt .

D．his feet may be hurt .

4.According to the doctor, Scott Bautch, if a child in Grade 5 weighs about 30 kilos, the school bag he carries should not be over          .

A．5 kilos            B．3 kilos            C．5.5 kilos           D．4.5 kilos

5.Some students think the best answer to this problem is that          .

A．they should have a little homework to do after they get home

B．their teachers had getter not ask them to do any homework

C．they should only take home the books they will read that night.

D．They should use thin books instead of thick ones.