We’ve talked about snails (蜗牛) and their slow move. But much of the time snails don’t move at all. They’re in their shells (壳) —sleeping .

Hot sun will dry out a snail’s body. So at the least sign of hot sun, a snail draws its body into its shell and closes the opening with a thin cover .Then it goes to sleep. A snail will die in a heavy rain. So whenever it rains, it goes inside its shell house and goes to sleep. A snail can sleep for as long as it needs to. It can take a short sleep. Or it can sleep for days at a time. And it spends all the winter months in its shell, asleep.

In spring the snail wakes up .Its body, about three inches long, comes out of from the shell. When hungry, the snail looks for food. It can’t see very well. Its eyes, at the ends of the top feelers (触角)are very weak . But its sense of smell is very strong. It helps the snail to the new greens. Then the snail’s little mouth goes to work.

A snail’s mouth is no longer than the point of a pin(针). Yet it has 256,000 teeth! The teeth are so small that you can’t see them. But they do their work. If you put a snail in a hard paper box, it will eat its way out. And if a snail wears out its teeth, it will grow new ones.

Mostly, a snail looks for food at night. But on cloudy days it eats in the daytime. It eats all day long. A snail can go on eating for hours and never feel full.

1.A snail ______________.

A. doesn’t move B. has thousands of feet at all

C. sleeps much of the time D. moves more slowly in the daytime

2.In the sentence “A snail draws its body into its shell” the word “draw” means ____________.

A. to make with a pen B. to keep away from

C. to pull D. to move to end

3.From the story we know ______________.

A. the snail’s shell is very thin B. a snail can’t see well

C. the snail’s nose is quite short D. the snail’s body changes in different seasons

4.A snail goes to sleep when ______________.

A. it feels hungry B. it is put in a paper box

C. spring is coming D. it rains heavily

5.Which of the following is not true?

A. The snail’s teeth can’t be worn out.

B. In winter the snail doesn’t eat or move

C. A snail doesn’t like living under the sun

D. The snail’s strong sense of smell helps to find things far away.

Many people like to travel by plane because it’s fast, but I don’t like it. An airport is usually far from the city. You have to get there early and wait for hours for the plane to take off and it is often late. You can’t open the windows. You can’t choose(选择) the food. Planes are fast, but they still take hours to go out of the airport and into the city.

I like traveling by train. I think trains are safe. Railway stations are usually in cities. When you are late for a train,you can catch another one. You can walk around in the train and open the windows. You can see many interesting things on your way. I know it takes a little more time.

I also like cars. You can start your travel when you want to, and you don’t need to get to a railway station or a bus stop. Also you can carry many things with you in a car. But sometimes there are too many cars on the road.

1.Many people like to travel by plane because _________

A. Because you can’t open the windows. B. Because the food is delicious.

C. Because you can’t walk around in the plane. D. Because it is fast.

2.Which is NOT the good thing about the train?

A. It is safe. B. It takes a little more time.

C. You can open the windows. D. You can walk around in the train.

3.If you want to carry a lot of things with you, you can take_________ to go out.

A. a car. B. a plane. C. a train. D. a bike.

4.What is the bad thing about the car?

A. You needn’t go to a station. B. You can start your journey when you want to.

C. There are too many cars on the road. D. You needn’t go to a bus stop.

5.What of the following is right?

A. The writer likes to take a plane.

B. The writer doesn’t like to take a train because it takes more time.

C. The writer thinks trains are safe.

D. People can’t open the windows of the cars.

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