题目内容：

Kangaroos(袋鼠) live in Australia. They can't run and they can't walk. But they can jump. They can jump very fast. Baby kangaroos are very small and only 3cm long. They can't jump and they can't see. A young kangaroo is always in its mother's pouch(育儿袋) for the first six months. They can see when they are nine weeks old. They can jump when they are eight months old. Camels(骆驼) live in desert. They can close their long noses to keep out the sand. Camels have humps(驼峰) on their backs—some have one and some have two. Humps do not carry water. They carry food. If a camel is hungry, its hump will get smaller. If a camel is thirsty, it will drink a lot of water at one time. A thirsty camel can drink a lot of water. If it drinks a lot of water, it won't drink again for over a week.

1.Kangaroos ________ very fast.

A. walk    B. run    C. jump    D. go

2.A young kangaroo leaves its mother's pouch when it's ________ old.

A. nine weeks    B. eight months    C. seven months    D. one year

3.Camels' ________ can close and keep out the sand.

A. long noses    B. big bodies    C. humps    D. four feet

4.There is ________ in a camel's hump.

A. water    B. food    C. vegetable    D. milk

5.A camel drinks ________．

A. little water    B. water very often

C. a little water when it's thirsty    D. a lot of water when it's thirsty