When we have small cuts in the skin (皮肤), something strange may happen. The cuts are able to heal (痊愈) themselves in a couple of days. How does this happen? Read on, and you will find out the secret.
Every living thing on the earth is made up of cells (细胞). Cells grow and make new cells. Most cells are very tiny and we can’t see them with our eyes. Different cells have different uses. Our skin cells are special ones. The cells on the surface (表面) of our skin are old dead cells. New skin cells are right under the surface. These are the living skin cells. They do work for our bodies. They help protect our bodies and heal cuts.
Our bodies make skin cells all the time. As the old cells fall off, new cells grow in the same place. Each person makes about 18 kg of skin cells during his or her life. Surface skin cells fit together closely with no gaps between them. When you cut or burn yourself, you can harm your skin cells. A small cut will not do much harm. Your skin will quickly heal itself by making new skin cells. How do skin cells work? First, the cells near the cut get bigger and move into the gap. Next, these bigger cells meet in the middle. They form a new layer (层) of skin cells. Finally, new cells will grow until the gap disappears completely. In this way, your skin can grow and get well itself.
How amazing the tiny cells are! Next time you have a cut, don’t worry about it. Maybe in a few days, you will be surprised to find it healed.The underlined word “gaps” in the passage means “_________” in Chinese.
| A．突起 | B．条纹 | C．缝隙 | D．代沟 |
From the passage, we know that cells_________.
| A．are large and we can see them with our eyes |
| B．can grow and make new cells |
| C．aren’t in most living things |
| D．can’t grow and make new cells |
Skin cells heal cuts in three steps. _________is the right order.
| A．a→b→c | B．b→c→a | C．a→c→b | D．b→a→c |
Which of the following is TRUE according to the passage?
| A．Each person can make 18 kg of skin cells every day. |
| B．Different cells have different uses in our bodies. |
| C．The skin cells have little work to do in the body. |
| D．Every living thing on the earth is made up of skin cells. |
The best title for this passage should be_________.
| A．How skin cells heal cuts |
| B．The importance of skin |
| C．How to protect our fingers |
| D．The importance of cells |
Visit the United Nations Headquarters in New York, US.
Hours:
Monday to Friday: 9:45 am to 4:45 pm
Prices:
Adults $16.00
The United Nations Headquarters
联合国总部
Senior Citizens （60 and older） $11.00
Students （ with valid ID） $11.00
Children （5-12 years old） $9.00The United Nations Headquarters is in ________.
| A．London | B．New York | C．Sydney | D．Paris |
The United Nations Headquarters opens from Monday to ________.
| A．Sunday | B．Saturday | C．Friday | D．Thursday |
The price for children is ________.
| A．$9 | B．$11 | C．$12 | D．$16 |
阅读下面短文，根据短文内容，完成下面各题。
The U.S. Master Golf Tournament(美国高尔夫大师赛) is one of the big four games in professional golf. This year, Guan Tianlang, a fourteen-year-old Chinese, has become a well-known as the youngest player in the 77-year history of the game. And he won the best-performing amateur(业余选手). He had a hard time in the game, but he said it was a wonderful experience for him.
At the age of 4, he started learning golf from his father. Many people think he is a smart golfer. Even Ben Crenshaw, a two-time Masters winner, praised Guan’s performance after playing with the boy. “He’s very confident(自信) and patient. He never played in a hurry, ” he said to the USA Today.
Guan makes the world know him not only with his game, but with his English as well. He answered the reporters’ questions with his perfect English. In fact, English is just one of favorite subjects. He also likes maths and history very much. At school, Guan is just like any other boy of his age. He goes to regular classes. He enjoys basketball and Kobe Bryrant is his favorite basketball player. He is always trying to get food grades and find time to practice golfing. He wants to win a major one day, but he said, “There’re still a lot of things to learn to improve. So nothing to rush.”Who is Guan Tianlang?
He is a 14-year-old player from China.What does Crenshaw think of Guan?
He thinks Guan is a boy.How long is the history of the U.S. Master Golf Tournament?
It is .How did Guan feel about the time he had in the game this year?
Though hard, he felt it a for him.What can we learn about Guan from the last paragraph?
He thinks it’s to keep studying hard, although he is successful in some way.
An atlas is a book of maps. Atlases are made with different kinds of information about different parts and areas of a country or the world. They are prepared for desk use or travel use.
Desk atlases are made for different groups of people with different needs. For example, students may use desk atlases to help learn geography, and other people may use desk atlases to study a place. A popular type of the latest atlas shows the recent fact of the world. New atlases are often carefully produced to help people learn about the changes, such as the name changes, boundary(边界) changes and other important new information. A desk atlas can also have some different maps of the same place. For example, an atlas may include maps showing population and important products of a place.
Travel atlases usually show the information about both natural and man-made features(特点). So it is not surprising to find universities, airports, forests, rivers, roads as well as cities, towns and villages in them. A travel atlas is often the first thing people need when they want to start a trip in a strange place. It often has a map of a whole country, and a map with more special information of each important place in the country. Take the atlas of the United States as an example, it often has a map of the whole country and then a map of each of the fifty states.
A travel atlas may also point out the beautiful natural places. In the US, the atlas may include national parks such as the Yellow Stone Park and some others to show the beauty of nature and interesting places to tourists.An atlas is according to the passage.
| A．a guide book | B．a history book |
| C．a collection of pictures | D．a collection of maps |
How many kinds of atlases are mentioned in the passage?
| A．One | B．Two | C．Three | D．Many |
From the passage we know people need newly produced atlases because .
| A．they can’t see the old ones clearly | B．they like to buy different ones |
| C．something has changed | D．something is missing |
According to the passage, people can find the information about in a travel atlas of Shanxi.
| A．the population of Shanxi | B．the local products of Shanxi |
| C．the Yellow Stone National Park | D．Xi’an Jiaotong University |
“Why does the chicken cross the road? To get to the other side!”
That’s an old joke in the west, but it came to my mind again when I saw people crossing the road at the intersection of Shanxi Road and Huaihai Road in Shanghai.
When the traffic light was red, a group of people were waiting for the light to change. Suddenly one man began rushing to the other side of the road. Soon others followed him at the crossing and more people did the same. Just like chickens, they didn’t mind the honking horns(喇叭声) and kept crossing the road in a mess.
Every year several thousand people are either killed or hurt on the roads in Shanghai. And at least one third of them were jaywalking(乱穿马路). Jaywalking is very common in Shanghai. It seems that jaywalkers are not afraid of the danger to themselves.
Traffic laws are to keep people safe. So we should obey them, and have good road-crossing habits. When someone starts to jaywalk, we should stop him, and never follow him. That way we can avoid the traffic accidents.The underlined word “intersection” here probably means “ ”.
| A．road | B．bridge | C．crossing | D．traffic |
The writer saw people in Shanghai that day.
| A．crossing the road in a mess | B．waiting for the green light patiently |
| C．crossing the road with chickens | D．hurting each other in the street |
How does the writer like what he saw in Shanghai that day?
| A．He thinks it’s OK. | B．He thinks it’s wrong. |
| C．He has no idea of it. | D．He doesn’t mention it |
To protect the environment, we are on the way. Here are a few things we can do.
Unwanted gifts? Give them away!
Have you ever received a gift that you didn’t like? Did you throw it away? If so, you can have another choice now. Two British companies hopes people will give away their unwanted gifts to them. And they will resell the gifts to raise money for the poor. In this way, the gifts can be refused and have a future life. And people can make a difference to the world.
Wear the trousers that reduce(减少) pollution!
A chemistry scientist and a fashion designer (时装设计师) have created a new kind of trousers. The trousers are made of a new material which can help reduce air pollution around us. Scientists have tested the material. The result shows that it isn’t harmful to human. This new kind of trousers may appear at the market in two years. Professor Ryan said, “If thousands of people wear the trousers, the air quality will be improved.”
Plant trees with Felix
Felix Finkbeiner, a 14-year-old German boy, is not famous as a child actor but an environment hero. At the age of 9, Felix got the idea that children could do something to protect the environment. So he started a club. Felix soon got support from children all over the world. Some of them have become his good friends. The club has an aim of planting 212 million trees. They have planted over 3.5 million trees all around the world. Felix said, “The answer to controlling global(全球的) warming is trees—lots of trees!”The companies resell the unwanted gifts .
| A．to make the unwanted gifts useful | B．to help people learn to think carefully |
| C．to save money from it | D．to make money for themselves. |
The trousers mentioned in the passage .
| A．have been created by a physics scientist and a fashion designer |
| B．can help make air pollution less |
| C．will do harm to people |
| D．will be popular in two years |
Felix started a club .
| A．to become famous |
| B．to become a child actor |
| C．to protect the environment with other children |
| D．to make friends with the children around the world |
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