Do you know why you sleep? You may think it’s because you’re tired. Or perhaps you’ve been told sleep is good for you. Yet no one knows exactly why or how people sleep.
Until the early 1950s, most scientists thought the body and brain rested during sleep. Then a scientist watched people sleep. He noticed that during periods of between 5 and 30 minutes each, sleepers’ eyes made rapid movements, as if they were watching something. He called these periods REM sleep, for Rapid Eye Movement. Periods when sleepers’ eyes did not move he called non-REM sleep.
Whenever the scientist woke people during REM sleep, they were having vivid dreams. Measurements showed that sleepers’ pulses（脉搏）went up quickly during REM sleep. Their breathing, heartbeat, and the blood going to the brain also increased. Far from being a time of rest, REM sleep is a time when the body is hard at work. Scientists still don’t know the reason for this. Some believe REM sleep makes learning easier. Babies spend a lot of time in REM sleep. Because of this, some scientists believe that REM sleep helps the brain grow. Others think REM sleep is a time for the brain to empty the day’s garbage.
One thing all the scientists agree on is that sleep is necessary. Without enough sleep, people make mistakes. Most major car accidents happen during the early morning hours, when people are sleepiest.During REM sleep, a person’s breathing and heartbeat ________.
| A．stop | B．increase | C．decrease | D．stay the same |
Which word in paragraph（段落）3 means “colorful and lively”?
| A．easier | B．empty | C．vivid | D．quickly |
Which paragraph tells what happens when people don’t get enough sleep?
| A．1 | B．2 | C．3 | D．4 |
What is the main idea of the article?
| A．REM sleep helps the brain grow. |
| B．REM sleep has been watched and recorded by scientists. |
| C．REM sleep is a time to empty the day’s garbage. |
| D．REM sleep is an active time when the body is hard at work. |
You can decide from the article that REM sleep ________.
| A．has a restful effect on people |
| B．can be avoided with lots of sleep |
| C．is something that all people experience |
| D．is something that all scientists agree on |
It's the end of class. When the bell rings, students of Luohu Foreign
Languages School in Shenzhen quickly take out their cell phones.
They want to log on to their micro blogs to check the interesting things that have happened in the last hour.
Since last year, the trend (潮流) of micro blogging has swept the country. Recent surveys shows that most students in middle schools have a micro blog and some even update their blogs over five times per day.
"We learn many fresh and interesting things on micro blogs and they have become popular topics in class," said Andy Liang, 14. "If you do not know about them, you are out of the loop."
It is also a great place for students to let out stress. "My parents always ask me to study hard, and encourage me before exams, but it really adds pressure," said Simon Zhang, 15. "When I share these feelings on my micro blog, I get many replies from friends in the same situation, which makes me feel better."
But parents are worried that micro blogging could be a waste of time. Some misleading messages may even cause danger to kids, they said.
Mr. Shen, a professor at the China Education Association, suggests parents not worry too much as long as kids are not crazy about micro blogging. Maybe it can become a window for parents to understand their children.
"If parents can read their children's micro blogs, they'll know their thoughts, thus leading to better communication and solutions to problems," he said. He also gives some tips for kids.
-Don't micro blog for more than one hour a day.
-Never micro blog in class.
-Try to talk face to face with people from time to time.
-Be critical(批判性的). Don't trust all the messages on a micro blog.Andy Liang thinks students are out of the loop if they don't know.
| A．the latest films |
| B．the famous pop song singers |
| C．the popular topics in class |
| D．many flesh things on TV |
Micro blog made Simon when he shared his feelings and got replies on his micro biog.
| A．feel sad | B．let out stress | C．add stress | D．make friends |
We can know from Mr. Shen that micro blogging can .
| A．make kids crazy while logging on to it |
| B．bring a lot of misleading messages |
| C．become a window to understand young kids |
| D．lead to worse communication |
Which statement is TRUE according to the passage?
| A．It's good for kids to micro blog for more than one hour a day. |
| B．Kids should trust all the messages on a micro blog because they are useful. |
| C．The trend of micro blogging has swept the country since five years ago. |
| D．Kids should try to talk face to face with people, not just micro blogging. |
Playing is serious business for children. In fact, it’s what they do best! Ask them why they do it, and kids will probably say, “Because it’s fun!” But it’s much more than that. It’s also good for them.
Studies show that from birth babies begin learning through playing. They use their five senses to get to know their new world. Touching allows them to discover how different things feel. Brightly colored toys and clothing help develop a baby’s sense of sight.
When small children choose which toy to play with, they begin developing their abilities in making decisions. Children love toys that allow them to use their imagination. Sometimes an empty box is more fun than a high-tech toy. That’s because a box can become anything a child imagines it to be.
Crayons, paints and Ply-Doh(彩色塑泥)are also good because they allow children to create. Traditional building blocks teach important pre-math skills like problem-solving.
Playing doesn’t become any less important once children start school. __＊___. Kids learn how to share, take turns and play by the rules.Why is playing a serious business for children?
| A．Because it is fun. |
| B．Because children can get much more from playing. |
| C．Because children make friends through playing. |
| D．Because children like playing. |
What does touching help babies develop?
| A．Touching helps babies to discover how different things feel. |
| B．Touching help develop babies’ sense of sight. |
| C．Touching helps develop babies’ imagination. |
| D．Touching helps develop babies’ pre-math skills. |
What can we fill in the＊ ?
| A．Classroom is the most important place for children to learn life |
| B．Many useful lessons about life are learned on the school playground |
| C．No useful lessons about life are learned on the school playground |
| D．Children can’t play on the school playground any more |
What’s the best title for the passage?
| A．Playing With Children |
| B．How to Become a Playboy |
| C．How to Play |
| D．Playing Plays an Important Role in Life |
Molly Daniels opened the door so hard that the door nearly broke it. Then she looked through the window at her neighbor across the yard. “ She is in my garden again. Those are my strawberries, not hers. Maybe I should call the police.”
Her friend, Doris, was sitting at the table with a cup of coffee in her hands. “You want to call the police because she picks your strawberries?” she asked.
“Of course,” Molly answered angrily. “What would you do if your neighbor walked into your yard without your permission and picked your strawberries?”
“I would say, better here the bees.”
“The bees don’t take my strawberries.”
“But the birds do,” Doris continued. “That old lady only picks a few strawberries every year, and the only ones she picks are those you leave to the birds. Why don’t you pick some of your good strawberries and give them to her?”
“Are you crazy? What are you thinking?’
“Don’t you remember what happened when you were in hospital last year? She went to see you and gave you a pot full of chicken soup. When you give her the strawberries you can tell her that you still remember that.”
Molly was shocked. She had almost forgotten that little kindness because she was too angry. Then she picked a basket of good strawberries and went out. Through the window, Doris could see that the anger on Molly’s face changed into a bright smile.Molly opened the door very hard because _____
| A．she was very angry |
| B．she was very happy |
| C．she didn’t like eating strawberries |
| D．Doris wasn’t friendly |
The underline word “permission” in the passage means “_____” in Chinese.
| A．感谢 | B．许可 | C．命令 | D．警告 |
Which sentence is similar to the sentence “I would say, better here than the bees.”?
| A．It’s better to let the neighbor pick the strawberries than to give them to the bees. |
| B．The bees are better than the neighbor. |
| C．The bees like strawberries more than the neighbor does. |
| D．The neighbor is good at picking strawberries. |
From the last paragraph, we can infer(推断)what Molly did at last with a basket of good strawberries.
| A．She called the police to drive the neighbor away. |
| B．She happily gave a basket of good strawberries to the neighbor. |
| C．She ate up the strawberries herself. |
| D．She let the birds take her strawberries. |
A sign is another kind of language. Here are some of them that you see on the roads.
Number One is a sign with the number thirty on it. When drivers see this sign, they must not go at more than thirty kilometers an hour. We see this sign when we are getting near a town. Number Two is a sign that we’re near a crossing. We must drive carefully. Number Three is a sign that there is a bend (拐弯) in the road. Again, we must drive slowly and carefully. It is not safe to go around a bend very fast. Number Four is a sign that there is another road coming in from the right. There is a junction (交叉) at this place. Number Five is a sign that there is a hill and Number Six is a sign that the road gets narrow. Drivers must go slowly and carefully. Number Seven has the word “SCHOOL” on it. This is a sign that there is a school at the side of the street or the road. Perhaps there are children going to or leaving school. So drivers must look carefully and go slowly. Number Eight is a sign with the letter “P” on it. The letter “P” means “Parking”. At some places, there are the signs “No parking” or “No waiting”. If a driver leaves his car near one of these signs, a policeman may come and write down the number of his car.At the places where you see Sign 1, ____________.
| A．you are already out of a town |
| B．you still have thirty kilometers to go |
| C．there must be many houses and buildings not far away |
| D．there must be a town thirty kilometers away |
A driver can leave his car ___________.
| A．near a sign with “P” on it in the daytime |
| B．near a sign with “No parking” on it |
| C．near a sign with “No waiting” if there’re no policemen there |
| D．near Sign 8 at any time |
People put these signs on the roads to ____________.
| A．make driving even safer |
| B．show drivers the way |
| C．stop cars going too fast |
| D．learn another kind of language |
In 1638, John Harvard donated some money and about four hundred books to a new university. This was the beginning of the library at Harvard University. The gift was so important that the university was named for John Harvard.
Thomas Bray began the first free lending library in the late 1600s. He set up more than 30 or these libraries in the American colonies. However, the idea for this kind of free library ended when Bray died in 1730. In 1731, Benjamin Franklin and some friends started the first subscription library in the United States. In a subscription library people pay money to become members, but they may borrow the books without paying again.
In the United States, every child had a free education. This idea soon led to free libraries. One of the first libraries that used tax money to buy books was a library in Peterborough, New Hampshire. This library was set up in 1833.The main idea of paragraph 2 is________.
| A． Franklin started the first subscription library |
| B． in a subscription library people pay money to become members |
| C． Bray and Franklin were important in the history of public libraries |
| D． Bray died in 1730 and Franklin died in 1833 |
The underlined word “borrow” means_______.
| A．read and write with no help from another person |
| B．use for a short time and then return |
| C．like very much |
| D．lend |
The reading does not say it, but we can guess that_______.
| A．there were free schools in the United States before there were free libraries |
| B．free schools and free libraries in the United States began at about the same time |
| C．the library in New Hampshire also had a free school in it |
| D．there were free libraries in the United States before there were free schools |
Harvard University began_______.
| A．in 1731 | B．in 1730 | C．in 1833 | D．in 1638 |
At the library that Franklin started, ________.
| A．children could use books for no money at all |
| B．people paid a little money in the beginning but none after that |
| C．people paid a lot of money in the beginning but none after that |
| D．both A and B |
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