A study finds that not enough morning light causes teenagers not to get enough sleep at night. “As teenagers spend more time indoors, they miss necessary morning light. Day light is needed to keep the balance of the body’s 24-hour biological system (生物系統), which regulates (調節) body temperature and sleep styles,” reports Dr. Mariana Figueiro. “These teenagers who receive little morning light are going to bed later, getting less sleep and doing badly in tests. They are more likely to fail in their exams.”
In the study, Dr. Figueiro asked 11 students in Grade 8 to wear special glasses to prevent blue morning light from reaching their eyes. At the end of the 5-day study she found that they fell asleep 30 minutes later than usual.
Throughout her research, Dr. Figueiro has been very worried about teenagers going to bed too late. The problem is that today’s schools require teenagers to be in school very early in the morning. These students are likely to miss the morning light because they often go to school before the sun is up or as it’s just rising.
Furthermore (此外), the schools are not likely to provide enough electric light to keep the balance of this biological system. Our biological system is much more sensitive (敏感的) to blue light. Therefore, having lots of light in the classroom does not make sure that there is enough light to keep our biological system balanced.

1.
Which of the following is the result of the study?
1. A.
  Blue light in the morning harms the biological system.
2. B.
  Not enough morning light keeps teenagers sleep less.
3. C.
  Not getting more light in the morning make teenagers happy.
4. D.
  Not enough sleep makes teenagers fail in tests.
2.
We know from the passage that morning light __________.
1. A.
  has the same effects as afternoon light
2. B.
  may change studying habits of teenagers
3. C.
  is important to children’s biological system
4. D.
  has no effect on students’ tests
3.
What’s the problem of the students according to the study?
1. A.
  There are not enough electric lights in the classroom.
2. B.
  Being in school early affects their study habits.
3. C.
  They have to go to bed very early to have enough sleep.
4. D.
  They go to school too early to get enough morning light.

查看答案和解析>>

A Trap
Mr. Smith left his car outside his apartment one night as usual, but when he came down the next morning to go to his office, he discovered that the car wasn’t there. He called the police and told them what had happened, and they said that they would try to find the car.
When Mr. Smith came home from his office that evening, the car was back again in its usual place in front of his house. He examined it carefully to see whether it had been damaged, and found two theater tickets on one of the seats and a letter which said, “We’re very sorry. We took your car because of an emergency.”
Mr. and Mrs. Smith went to the theater with the two tickets the next night and enjoyed themselves very much.
When they got home, they found that thieves had taken almost everything they had had in their apartment.

1.
What did Mr. Smith find one morning?
1. A.
  His car was missing.
2. B.
  The door of the car was open.
3. C.
  His car was in the garage.
4. D.
  His car was outside of the garage.
2.
What did he do then?
1. A.
  He got in and drove it.
2. B.
  He closed the door of his car.
3. C.
  He called the police.
4. D.
  He looked everywhere for it.
3.
What happened when he came home from his office that evening?
1. A.
  The police was waiting for him.
2. B.
  His car was back.
3. C.
  His car was damaged.
4. D.
  His car was stolen.
4.
What did Mr. Smith find on one of the seats in his car?
1. A.
  Some books.
2. B.
  Some tickets.
3. C.
  Some money.
4. D.
  Some food.
5.
What did Mr. and Mrs. Smith do with the thing(s) they found in their car?
1. A.
  They sold them.
2. B.
  They gave them to their friends.
3. C.
  They threw them away.
4. D.
  They went to the theater with them.

查看答案和解析>>

A lift is wonderful. It is really only a small room. Rooms usually stay in one place. Lifts travel up and down all day long.
Sometimes a worker stands in the lift. He or she operates it up and down. In modern lifts there is no worker. The people walk in. They know what floor they want. They push a button and the lift goes to that floor. It is all very fast and easy.
Lifts are very important to us. Why? Think about a tall building. Maybe it has twenty floors. Maybe it has fifty or more. Who can walk up all the stairs? Maybe people can climb them one time. Can someone climb thirty floors to an office every day? Can small children walk up to their room on the twenty-fourth floor? Can their mother and father carry food up all those stairs? Of course not.
We can have high buildings because we have lifts. We could not have all the beautiful tall buildings in the world without lifts. They are really wonderful.

1.
Which of the following is true?
1. A.
  A modern lift has no buttons.
2. B.
  A modern lift has a worker to operate it.
3. C.
  A modern lift can go up and down with no worker in it.
4. D.
  A modern lift knows what floor people want.
2.
If you want to go to the floor you want, you_______.
1. A.
  ask for help
2. B.
  open the door of the lift
3. C.
  ring the bell
4. D.
  push the right button
3.
Why do people have to use lifts? Because________.
1. A.
  they have tall buildings
2. B.
  they can't walk up and down
3. C.
  old people and children need them
4. D.
  lifts are wonderful

查看答案和解析>>

A woman repeated a bit of gossip (流言) about a neighbour. Within a few days the whole neighbourhood knew the story. The neighbour was deeply hurt. Later the woman responsible (負責) for spreading the gossip learned that it was completely untrue. She was very sorry and went to a wise old man to find out what she could do to repair the harm.
“Go to the marketplace,” he said. “and buy a chicken, and have it killed, then on your way home, pluck (拔) its feathers and drop them one by one along the road. ” Although surprised by this advice, the woman did what she was told.
The next day the wise man said, “ Now, go and collect all those feathers you dropped yesterday and bring them back to me. ”
The woman followed the same road, but she was so discouraged when she found the wind had blown all the feathers away. After searching for hours, she returned with only three in her hand.
“ You see, ” said the old man, “it’s easy to drop them, but it’s impossible to get them back . So it is with gossip. It doesn’t take much to spread a gossip, but once you do, you can never completely undo the wrong.”
【小題1】The woman was very _________ the harm she had done to her neighbour.

A．happy about

B．angry about

C．sorry for

D．excited about

【小題2】Which of the following statements is TURE?

A．The gossip didn’t hurt anyone at all.

B．The wise man was not kind enough.

C．The woman found all the feathers at last.

D．The woman was given a lesson.

【小題3】What the wise man said has nearly the same meaning as the Chinese phrase “_________”

A．覆水難收

B．無中生有

C．欲速不達

D．得道多助

查看答案和解析>>

A lift is wonderful. It is really only a small room. Rooms usually stay in one place. Lifts travel up and down all day long.
Sometimes a worker stands in the lift. He or she operates it up and down. In modern lifts there is no worker. The people walk in. They know what floor they want. They push a button and the lift goes to that floor. It is all very fast and easy.
Lifts are very important to us. Why? Think about a tall building. Maybe it has twenty floors. Maybe it has fifty or more. Who can walk up all the stairs? Maybe people can climb them one time. Can someone climb thirty floors to an office every day? Can small children walk up to their room on the twenty-fourth floor? Can their mother and father carry food up all those stairs? Of course not.
We can have high buildings because we have lifts. We could not have all the beautiful tall buildings in the world without lifts. They are really wonderful.
【小題1】Which of the following is true?

A．A modern lift has no buttons.

B．A modern lift has a worker to operate it.

C．A modern lift can go up and down with no worker in it.

D．A modern lift knows what floor people want.

【小題2】If you want to go to the floor you want, you_______.

A．ask for help	B．open the door of the lift
C．ring the bell	D．push the right button

【小題3】Why do people have to use lifts? Because________.

A．they have tall buildings

B．they can't walk up and down

C．old people and children need them

D．lifts are wonderful

查看答案和解析>>

同步練習冊答案

精品一区二区免费在线观看_国产精品久久久久久av福利软件_97成人精品区在线播放_国内成人精品一区

練習冊

高中

初中

小學

Which of the following is the result of the study?

We know from the passage that morning light __________.

What’s the problem of the students according to the study?

What did Mr. Smith find one morning?

What did he do then?

What happened when he came home from his office that evening?

What did Mr. Smith find on one of the seats in his car?

What did Mr. and Mrs. Smith do with the thing(s) they found in their car?

Which of the following is true?

If you want to go to the floor you want, you_______.

Why do people have to use lifts? Because________.