Everybody has a home. We people have homes,animals have homes,too.

Some animals live under the ground. The woodchuck(土拨鼠) lives in holes(洞) under the ground. His home has two doors. If anybody comes in one door, he goes out from the other door. Some birds live in nests（鸟巢） and trees. They come out for food in the day and go back to sleep at night. But many birds just live in the trees. Bees(蜜蜂) work hard to make their homes. There are many,many little rooms in their house... Cows(奶牛) ,sheep(羊) and chicks (小鸡)live in people’s homes. And that is called farm.

We see all kinds of animals in the zoo. It’s a big home for lots of animals.

1.   have homes.

A．Everybody                            B．Woodchucks and bees

C．Bees and birds                         D．People and animals

2.A woodchuck’s home has               doors.

A．one              B．two              C．no               D．some

3.Birds live             .

A．in holes           B．under the ground   C．on the farm        D．in nests and trees

Let’s____planting the trees until tomorrow. I think it’s going to rain.

A．put on　　                            B．put up

C．put off                                D．put down

When you are planting trees, the trees ________ straight in the hole.

Do you know why different animals or insects have their special colors? Colors are used mainly to protect themselves.

Why can’t some birds easily catch locusts（蝗虫）? It is because locusts change their colors together with the change of the colors of crops. When crops are green, locusts look green. But as autumn comes, locusts change to the same brown color as crops have. Some other insects with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives in the day and appear only at night.

If you study the animal life, you’ll find the main use of coloring is to protect themselves. Bears, lions and other animals can’t be easily seen by hunters. This is because they have the colors much like the trees.

Have you ever noticed an even more strange thing? A kind of fish in the sea can send out black liquid when it faces danger. While the liquid spreads over, its enemies can’t find it. And it quickly swims away. So it has lived up to now though it is not strong at all.

1. From the article we learn that locusts 　　　　　　　　　.

A. are dangerous to their enemies           B. are easily found by birds

C. change their colors to protect themselves   D. are small animals

2.How can insects with different colors from plants keep out of danger?

A. They have to move quietly.

B. They hide themselves in the day and appear at night.

C. They have the colors much like their enemies.

D. They run away quickly.

3. Bears and lions can keep safe because 　　　　　　　　　.

A. they live in forests                  B. they like brown and grey colors

C. they move quietly　                   D. they have the colors similar to the trees

4.What does the word “liquid” mean in the last paragraph?

A. 气体          B. 固体　       C. 液体　       D. 水蒸气

5. Which is the best title for this passage?

A. The Main Use of Colors for Animals and Insects

B. Colors of Different Animals and Insects

C. The Change of Colors for Animals and Insects

D. The Change of Different Animals and Plants