1 . Thousands of years ago doctors used rocks for operations (手术). Later they used sharp bones or horns, metal knives and more recently, rubber and plastic. In the 1960s, a new tool was developed. First of all, it was of great practical use to the industry. Then it was also used to improve the art and science of operations.
The tool is the laser (激光), and it is being used by more and more doctors all over the world. As we all know, light is hot, and any light will give warmth. But light is usually spread out over a wide area. The light in a laser, however, is concentrated. This means that a light with no more power becomes much stronger when it is concentrated than that produced by an ordinary electric light.
Experiments showed researchers that different energy produces special effect on certain living cells (细胞). It is now possible for eye doctors to operate on the back of human eye without harming the front of the eye, simply by passing a laser right through the eye-ball. Operations once made patients exhausted and in need of long period of recovery (恢复) time. But now they make them feel relaxed and comfortable.
The rapid development of laser techniques in the past ten years has made it clear that the future is likely to be very exciting. Perhaps some cancers will be cured (治疗) with laser in a way. It will make operations not only safer but also more effective.
1. The instruments of surgical operations before 1960s are ________.| A．traditional | B．unbelievable | C．valuable | D．high-technology |
| A．Industry made operations change greatly. |
| B．Medical help became available for industrial workers. |
| C．Rocks can be used in operations. |
| D．Human beings methods in operations changed greatly. |
| A．it gives warmth | B．its light is concentrated |
| C．it sends out heat in all directions | D．its heat is increased by the sun |
| A．can cure only human eye diseases | B．leave their patients exhausted |
| C．can do little harm to their patients | D．make their patients need a long time to recover |
| A．The laser isn’t used in industry. |
| B．Sharp bones or horns weren’t used for operations. |
| C．The development of laser techniques in the past ten years was slow. |
| D．Perhaps some cancers will be cured with laser in the future. |
2 . What color are icebergs (冰山)? White or blue? Surprisingly, there are green icebergs in Antarctica (南极). Their unusual color has confused scientists for years. But scientists have finally solved the mystery of the green icebergs.
Icebergs are large pieces of ice in the sea. Icebergs form after breaking away from glaciers (冰川).
Most icebergs are white. There are also many icebergs in Antarctica that are blue. Glacial ice has a lot of small air bubbles (气泡). The icebergs appear to be blue because the air bubbles reflect blue light.
However, there are no air bubbles in green icebergs, which means these icebergs are made out of sea ice rather than glacial ice.
But why does sea ice look green? Scientists at the University of Washington, US, recently found the reason--- iron oxide (氧化铁). It comes from rock dust found on the Antarctic mainland. After studying the green icebergs, scientists found that they have 500 times more iron than glacial ice. The iron comes from bedrock in the ocean. When glaciers grind (碾磨) against bedrock, a powder (粉末) that is rich in iron is created. The powder later mixes with ocean water, which then freezes as green sea ice, Stephen Warren from the university suggested.
This is an important finding because these green icebergs can deliver iron to far parts of the ocean. There, tiny sea plants use the iron as a nutrient (营养物). We thought green icebergs were interesting. But now they may actually be important.
1. According to the story, icebergs can be ________.| A．white, blue and yellow | B．green, blue and yellow |
| C．white, green and blue | D．blue, red and green |
| A．there is iron oxide inside of them | B．air bubbles inside reflect green light |
| C．some sea plants are frozen inside | D．they are made out of bedrock |
| A．glacial ice | B．bedrock in the ocean |
| C．dead bodies of sea animals | D．industrial waste |
| A．Green icebergs can only be found in Antarctica. |
| B．Glaciers don’t have any color. |
| C．Sea ice does not have air bubbles. |
| D．Antarctica animals feed on colorful icebergs. |
| A．Iron Oxide | B．Mystery of the Green Icebergs |
| C．The Change of Colors | D．Differences between Glacial and Sea Ice |
3 . Internet use seems to cause a decline (下降) in psychological (心理的) health.
Even people who spent just a few hours a week on the Internet felt more depression (沮丧) and loneliness than those who spent little time on the Internet, the two-year study showed. And it wasn’t that people who were already feeling bad spent more time on the Internet, but that using the Internet seems to cause the bad feelings.
Scientists are surprised at the results. They were quite different from what they thought before. They thought that the Internet would make people psychologically healthier than TV, because users on the Internet are free to choose their information and to communicate with others.
However, the scientists also say, when people spend a lot of time or even all the day time on the Internet, there is no time left for them to be with their family and friends. They can’t have real conversations. Another possible reason is that people can see the outside world on the Internet and it makes them less satisfied with their lives.
判断正(A)误(B)
1. Internet use seems to be bad for people’s psychological health.
2. People are free to choose their information when watching TV.
3. The more time you spend on the Internet, the less time you are with your family and friends.
4. People are not satisfied with their lives so they spends lots of time on the Internet.
5. The passage mainly talks about the influence that the Internet causes.
4 . Why do people yawn(打呵欠)? It is a way to get more oxygen(氧气). When people are sleepy, they yawn to help stay awake. This is because of fresh oxygen. Yawning is one thing that newborn babies do often.
When one person yawns, others often begin to yawn, too. Once a film of someone yawning was shown, and almost everyone in the theater started to yawn.
Try yawning in a room full of people. Watch how soon others begin to yawn. See if the fact that they are yawning makes you want to yawn more.
Human people are not the only creatures(生物) that yawn. Almost all animals do it. Even small mice and huge elephants have been yawning.
根据短文判断正误, 判断正（A）误（B）题。
1. Yawning is a way to get more oxygen.
2. Newborn babies do not know how to yawn.
3. Yawning can help you keep awake.
4. If you yawn, other people around you often yawn as well .
5. Very large animals do not yawn.
Some children like to go to the zoo. Our parents are always busy, so they don’t have free time to take us to the zoo. Do you know the online（在线）zoo? It’s good news for children who like animals.
BBC is a broadcasting company（广播公司）in Britain. It opens an online zoo. People can watch hundreds of animals at any time. Different from common zoos, we can’t touch the real animals. We can only watch them on the Internet. BBC uses cameras to record（记录）the animals’ life and sends the pictures and videos to the Internet. If people want to watch the animals online, they only need to turn on the computer and visit the website.
1. Our parents don’t take us to the zoo because they are busy.2. BBC opens an online zoo.
3. We can watch animals’ pictures at the online zoos.
4. If you want to watch the animals online, you need to download（下载）the pictures from the Internet.
5. The online zoo is different from common zoos.
6 . Can dolphins talk? Maybe they can't talk with words, but they talk with sounds.
Dolphins travel in a group. We call a group of fish a "school". They don’t study but they travel together.
Dolphins talk to other dolphins in the school. They give information. They tell when they are happy or sad or afraid. They say welcome when a dolphin comes back to the school. They talk when they play.
They make a few sounds above water. They make many more sounds under water. People can't hear these sounds because they are very very high. Scientists make tapes of the sounds and study them.
Sometimes people catch a dolphin for a large aquarium(水族馆). People watch the dolphins in a show. Dolphins don’t like to be away from their school. In the aquarium they are sad and lonely. Dolphin meat is good but people don't like to kill them. They say that dolphins bring good luck. Many people believe this.
1. Dolphins can talk with________.| A．sounds | B．words | C．language | D．action |
| A．don't like to | B．like to | C．study | D．have classes |
| A．sadness | B．wishes | C．bad luck | D．good luck |
| A．no | B．many | C．a few | D．much |
| A．Dolphin meat is good, so people like to kill them. |
| B．Dolphins don't like to be in the aquarium. |
| C．Dolphins make a few sounds under water. |
| D．People can hear these sounds from under water. |
7 . There are seven days in a week. They are Sunday, Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. Most children go to school from Monday to Friday. Most people don’t work on Saturday or Sunday. In England most shops are closed on Saturday and Sunday. But in China shops are open every day. In England some people go to church. The time between Friday evening and Monday morning is the weekend. It is the time for rest. We can’t work all the time. We rest over the weekend.
1. Most children don’t go to school on __________.| A．Saturday | B．Sunday | C．Monday | D．weekend. |
| A．on Tuesday | B．on Saturday and Sunday |
| C．every day | D．from Monday to Friday |
| A．to work | B．a good rest | C．lessons | D．a look |
| A．two | B．one | C．three | D．four |
| A．some | B．many | C．no | D．any |
8 . Do you know what an English first name means? Do you want a good name for your baby boy? Here is a list of British, American and Australian first names for boys and you can know what they mean. Then you can choose a meaningful name for your baby boy.
Name | Meaning | Name | Meaning | |
Albert | bright | Bond | farmer | |
Austin | helpful | Bryant | strong | |
Blaine | thin | Byron | bear | |
George | farmer | Dave | beloved | |
Douglas | dark | Curt | short or little |
1. What does "Curt" mean?
| A．Thin. | B．Little. | C．Strong. | D．Bear. |
| A．England | B．Australia | C．USA | D．A, B and C |
| A．Names and meanings. | B．Boys' English names. |
| C．Meanings of the names. | D．Boys' first names and their meanings. |
| A．Bond and George. | B．Blaine and Albert. | C．Dave and Douglas. | D．Bryant and George. |
| A．boys. | B．girls. | C．parents. | D．teachers. |
9 . How much do you know about Chicago, lllinois, in the United States? You might think it’s a big city. And it is Chicago is actually the third most populous city in the US, right after New York City and Los Angeles according to the US 2010 Census. “The Windy City” is Chicago’s most famous nickname (绰号). It is for good reason. The city lies right next to Lake Michigan and heavy gusts (一阵风) of wind blow through the city.
Chicago is very well known for its art and culture. In fact, TripAdvisor says that the Art Institute of Chicago is the No. 1 place to visit in the city. It is not only a school, but also a world—class art museum.
If you don’t feel like visiting a museum, your best choice is to go to Millennium Park. This is one of my personal favorites. This park holds the famous Cloud Gate, and it looks kind of like a big reflective (反光的) bean. Many people enjoy taking photos in its reflection.
Chicago also offers other fun things to do. If you enjoy heights, go visit the famous Willis Tower! You can go up to the top of it and step out onto a glass box. You’ll be standing over the city, but don’t worry — it’s completely safe. Doesn’t Chicago sound like a fun city?
1. 回答问题If you have one day off in Chicago, what will you do for fun? Why?2. 找出划线单词“it”所指代的内容。
3. 从文中找出与“The population of Chicago is just smaller than New York and Los Angeles in the US.”意思相同或相近的句子。
4. 翻译句子“Chicago is very well known for its art and culture.”
5. 请给文章拟一个标题。
10 . New York City’s Chinatown is in the est of Manhattan（曼哈顿）. About 150,000 people live there. There are many things to do and many places to visit.
Shopping in Chinatown
You can find all kinds of Chinese things there just like you are in China: food, clothes, jewelry(珠宝), and so on. On the north side of the Canal Street there are many jewelry shops. And on the south side of the Canal Street there are small present shops, handbag shops, watch shops and some big supermarkets.
Eating in Chinatown
Chinatown has more than 200 restaurants. You can find many Chinese foods there. The foods come from all over China: Beijing, Shanghai, Suzhou, etc.
Sightseeing(观光) in Chinatown
You should visit Chinatown when you are travelling in New York City. A lot of people visit Chinatown every day. It is the biggest Chinatown in the USA. It is famous for(因…著名) its restaurants, jewelry shops, food markets, and busy streets, such as Canal, Mott, Pell and Doyers Streets. And Canal Street is famous for its handbags.
1. New York City’s Chinatown is ________.| A．in the west of Manhattan | B．a famous restaurant |
| C．the biggest Chinatown in the USA | D．on the north of the Canal Street |
| A．Pell Street | B．Doyers Street | C．Canal Street | D．Mott Street |
| A．About 150,000 | B．More than 200 | C．200 | D．More than 2,000 |
| A．You can buy many Chinese things in Chinatown. |
| B．People can eat Beijing Duck in the restaurants in Chinatown. |
| C．You can buy some small presents in Chinatown. |
| D．Only a few people visit Chinatown every day. |
| A．Shopping in Chinatown | B．Eating in Chinatown |
| C．Sightseeing (观光) in Chinatown | D．New York City’s Chinatown |
