Cars are lots of fun, but they could also be dangerous. We have to be careful when we drive them or ride in them.
It's always a good idea to put on your seat belt when you're in a car. Why? Think about this example: You put an egg on a skateboard and give it a push. If the skateboard hits a stone, it will stop, but the egg won't. It will fly through the air, hit the ground and break.
Now, think what would happen if you tied the egg to the skateboard. When the skateboard hits a stone, the egg won't go flying; it will stay safely on the skateboard.
Volvo, a famous Swedish carmaker, was the first to use seat belts in 1849.
Air bags are also very important for car safety, because sometimes a seat belt isn't enough. If the car is going really fast and runs into something, seat belts could even hurt the people who wear them. Most new cars have air bags in front of and next to the seats. When a car hits something, its air bags will come out quickly in less than one second to keep the people inside safe.
【小题1】The passage mainly tells us                  .

Many years ago there lived two brothers in London. They were both very rich. They had   1   ideas about money. They were quarrelling（争吵）about what would happen if a poor man could  2  a million pound note. One thought that anyone with such a note would have   3  he wanted; the other thought that it would be   4  for him to get anything with the note（钞票）.They couldn’t agree with each other. So they   5  to make a bet (打赌).
It happened that a young man named Henry was wandering through the street that day, who had come to Britain only chance.  6  home and job, he looked pale（苍白的）and  7  . Suddenly he saw an apple   8   away by a child. The man was so hungry that he was thinking of picking it up to eat. Just as he was   9 out his hand, he heard a voice calling him. He looked up and saw the two   10. They gave him an envelope. They told him not to open it until two o’clock. They said, “Nothing but money in it.” Then they left…

A teacher began his class by holding up a glass with some water in it.  He held it up for all to see, and asked the students, " How much do you think this glass weighs?"

"50 g!" "100 g!" "125 g!" the students answered.

        "I really don't know unless I weigh it," said the teacher, "but my question is what would happen if I held it up like this for a few minutes?"

" Nothing! " the students said.

"OK. What would happen if I held it up like this for an hour?" the teacher asked.

"Your arm would begin to ache," said one of the students.

"You're right.  Now, what would happen if I held it for a day?"

"Your arm could go numb. Have to go to hospital for sure!" said another student. All the students laughed.

"Very good. But during all this, did the weight of the glass change?" asked the teacher.

"No." the students said.

"Then what caused the arm ache and the muscle (肌肉) stress?"

The students fell silent for a moment.

"Put the glass down!" said one of the students.

"Exactly!" said the teacher. "The problems of life are something like this. Hold them for a few minutes in your head, and it seems OK. Think of them for a long time and they begin to make you ache. Hold them even longer and you will not be able to do anything. It's important to think of the  challenges(挑战)  in your life, but it' s even more important to put them down at the end of every day before you go to sleep. That way, you are not stressed. You wake up fresh and strong and can deal with any challenge that comes your way!"

Remember to put the glass down today.

1. How much do you think this glass which was held by the teacher weighs?

A.50g     B.125g       C.I don’t know.    D.100g

2.What would happen if the teacher held the glass up like this for an hour?

A. One of the students thought his arm could go numb.

B. One of the students thought his arm would begin to ache.

C. One of the students thought his arm would be changed.

D. One of the students thought his arm would be lost.

3. Why did the teacher hold up a glass in his class?

A. Because he wanted to know how much the glass weighs.

B. Because he wanted to ask some student to weigh the glass.

C. Because he wanted to make his class more interesting.

D. Because he wanted to explain it was important to put the challenges in life down at the end of every day.

4. In this passage, the underlined words "go numb" means_______.

A．疼痛不止                  B．消瘦萎缩                   C．松弛下垂         D．失去感觉

5. According to the passage, which of the following is TRUE?

A. The teacher told his students to face the challenges bravely.

B. The teacher taught his students how to deal with the problems.

C. The teacher used to begin his class with a glass of water.

D. The teacher usually begins his class by holding a glass of water.

A Trip to the Forest

One day Bob took two of his friends into the mountains. They put up their tents and then rode off to a forest to see how the trees were growing.

In the afternoon when they were about ten kilometres from their camp（营地）, it started to snow. More and more snow fell. Soon Bob could hardly see his hands before his face. He could not find the road. Bob knew there were two roads. One road went to the camp, and the other went to his house. But all was white snow. Everything was the same. How could he take his friends back to the camp?

Bob had an idea. The horses! Let the horses take them back! But what would happen if the horses took the road to his house? That would be a trip of thirty-five kilometres in such cold weather!

It was getting late. They rode on and on. At last the horses stopped. Where were they? 

None of them could tell. John looked around. What was that under the tree? It was one of their tents!

1.John and his two friends went to the forest to ________.

2.They could not find their way back because ________.

3.It is clear that they wanted the horses to take them to _______.

4.The horses stopped because _______.

5.The story happened _______.