What is color? Why do some of the things around us look red, some green, others blue?
Colors are really made by deflected (反射) light. We see color because most of the things reflect light. In the same way, if something is green, it reflects most of the green light. If something reflects all light, it is white. If it doesn’t reflect any light, it is black.
Some of the light is reflected and some is taken in (吸引) and turned into (变成) heat (热能).The darker the color is, the less light is reflected, the more light is taken in. So dark-colored clothes are warmer in the sun than light-colored clothes.When something reflects light, we can _____.
| A．see its color | B．see its heat | C．not see its color | D．see nothing |
Something looks white because it reflects _____.
| A．some light | B．no light | C．all light | D．most light |
the dark-colored clothes are warm because ____ is taken in.
| A．more light | B．less light | C．more color | D．less color |
In summer ______ make people feel cool.
| A．dark-colored clothes | B．red-colored clothes |
| C．green-colored clothes | D．light-colored clothes |
What’s the best title(标题)of this passage( 短文 )?
| A．Dark color | B．Color | C．Heat | D．Clothes |
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World Book Day falls on April 23 every year. It was set up by the UNESCO(联合国教科文组织) in 1995 to encourage people, especially teenagers, to discover the pleasure of reading. It is also the day to honor great writer, for example, William Shakespeare, born or dead on that day.
Many countries celebrate World Book Day. Take UK as an example. On that day, millions of school children can buy books of special price, a much lower price than usual, in any bookstore. It has been done every year since 1998. World Book Day is also celebrated in China. Premier Wen Jiabao does lots of reading every day. Wen has called on people to do more reading. He suggested that young people should spend more time reading. “Book cannot change the world, but people can change the world by changing themselves through reading,” he said.
Why do people like reading? One big advantage is that reading helps us become more knowledgeable and more intelligent. Also, reading helps us to follow the latest developments of science and technology. Besides, reading gives us information about other cultures and places of the world. When we read, we may find many things that are unfamiliar to us. We would have to use our brain to think about them or do more reading to find out the answers. The more we read, the more we know. What’s more, reading is also one of the most important ways to learn a foreign language like English.
“Reading makes a full man”. Books, magazines, newspapers and other kinds of materials can help us to know more about the outside world and perfect us. So it is necessary for us to spend time on reading every day.When is World Book Day?
In UK, what can school children do on World Book Day?
What did Premier Wen Jiabao suggest young people do?
How many advantages of reading are mentioned in the passage?
What does the passage mainly talk about?
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Never go into a supermarket hungry! This is a good piece of advice. If you go shopping for food before lunchtime, you’ll probably buy more than you plan to. Unluckily, however, just this advice isn’t enough for consumers (消费者) these days. Modern shoppers need an education in how and how not to buy things at the store. First, you check the weekly newspaper advertisements. Find out the items that are on sale and decide if you really need these things. In other words, don’t buy anything just because it’s cheaper than usual! “New and improved!” or “All Natural” on the front of a package (包装) influence you. Instead, read the list of ingredients (原料) on the back. Third, compare prices: that is, you should examine the prices of both different brands(商标、牌子) and different size of the same brand.
Another suggestions for consumers is to buy ordinary items(商品) instead of famous brands. Ordinary items in supermarkets come in ordinary packages. These products are cheaper because producers don’t spend much money on packing or advertising.
The quality, however, is usually as good as the quality of well-known name brands. In the same way, in buying clothes, you can often find high quality and low prices in brands that are not famous. Shopping in discount clothing stores can help you save a lot of money. Although these stores aren’t very attractive, and they usually do not have individual dressing room, not only are the prices low, but you can often find the same famous brands that you find in high-priced department stores(百货商店).
Wise consumers read magazine ads and watch TV commercial (广告), but they do this with one advantage: knowledge of the psychology (心理) behind the ads. In other words, well-informed(消息灵通的) consumers watch for information and check for misinformation. They ask themselves questions. Is the advertiser hiding something in small print at the bottom of the page? Is there any real information in the commercial, or is the advertiser simply showing an attractive image? With the answer to these questions, consumers can make a wise choice.
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| Suggestions |
Never go into a supermarket when you |
Need an education in how and how not to buy things at the store. |
Buy ordinary items instead of famous |
Read ads with |
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It is |
Consumers can make a wise |
The prices of items are lower because producers spend money on packaging. |
Advertisers sometimes don’t tell the |
Spring is an inviting season for outdoor activities. But be careful—the warm weather is also a hotbed for viruses(病毒) and disease.
This March, the influenza(流行性感冒) A(H7N9) virus hit Shanghai, Anhui, Jiangsu and Zhejiang. It was reported that by April 11 at least 35 people had been infected (被感染的) with the H7N9 virus, and nine of them had died.
The influenza A (H7N9) virus is one type of influenza A H7 viruses. Influenza A H7 viruses normally spread among birds.
This is the first time human infections with H7N9 viruses have been reported in China. Earlier reports were about H5N1 and H1N1.
All the three viruses are influenza A viruses but they are not the same. H7N9 and H5N1 are animal influenza viruses that could infect people. However, H1N1 viruses can be divided into two groups. One group can normally infect people and the other normally infects animals. Also, H1N1 can spread from human to human, but H7N9 probably can’t, according to the World Health Organization (WHO).
Most people infected with H7N9 looked like they had the common flu. Some people had bad pneumonia(肺炎). They suffered from a fever, a cough and shortness of breath.
But don’t be afraid – it is not easy to be infected with the virus. One of the possible reasons is close contact with sick poultry (家禽) waste. People may also be infected through breath, according to National Health and Family Planning Commission.
Here are some tips from the WHO that can protect you from being infected.
Wash your hands with soap and running water before you eat, after you use the toilet, and after touching animals or animal waste.
When coughing or sneezing cover your mouth and nose with a mask(口罩)，tissue(纸巾) or a sleeve.
Get a good rest and do exercises, which will help make your body strong enough to stand up to the virus.What’s the name of the influenza virus that hit Shanghai, Anhui, Jiangsu and Zhejiang this March?
| A．It is the H7N9 virus. | B．It is the H5N1 virus. |
| C．It is the H1N1 virus. | D．It is A H7 virus. |
How many people had died by April 11according to the report?
| A．About 35. | B．About 9. |
| C．About 44. | D．Nobody had died. |
What’s the Chinese meaning for “stand up to” in the last paragraph?
| A．起立 | B．站着 | C．抵抗 | D．向上 |
Which is NOT true about protecting us from being infected by animal influenza viruses?
| A．Wash our hands with soap and running water before we eat, after we use the toilet, and after touching animals or animal waste. |
| B．When we cough or sneeze we should cover our mouths and noses with a mask，tissue or a sleeve. |
| C．We should get a good rest and do exercises to make our bodies strong enough. |
| D．We should try to eat much and sleep much as possible as we can. |
Do you feel lonely when your best friend isn’t around? Here’s our advice to you-- and to all kids who feel lonely sometimes.
It’ s hard when a best friend isn’t around—maybe because he or she moved to a different school or a different class. You may feel left out at break or lunchtime. You want to have new friends, but how do you make them? Maybe it seems like everybody else already has his or her friends. But remember, there’s always room for more friends.
Start by looking around your classroom—think about which kids you’d like to play with at break. Look for chances to say hi to them, smile, and be friendly. Offer to share something or express your appreciation (欣赏) to them. Invite someone to play with you or say “Do you want to sit here?” in the lunchroom. When you’re at break, walk over to kids you want to play with, act friendly, and say “Hi, can I play, too?” or just join in.
If you have trouble doing this or if you’re feeling shy, ask your teacher to help you make new friends. Teachers are usually pretty good at matching up friends. The best way to make friends is to be a friend. Be kind, be friendly, share, say nice things, offer to help—and pretty soon, you’ll have one, or two, or even more new friends.
You might still miss that special best friend. But when you see each other, you can share something you didn’t have before he or she left: You can introduce him or her to your new friends!Which of the following can explain the expression “feel left out”?
| A．Feel homesick. | B．Feel lonely. |
| C．Leave home alone. | D．Be hungry. |
According to the writer, some kids feel lonely at break because they .
| A．have trouble with their studies |
| B．don’t have their best friends around |
| C．need their parents to be with them |
| D．are too young to look after themselves |
The underline word “this” in Paragraph 4 means .
| A．sharing your ideas |
| B．talking in front of many people |
| C．studying better at school |
| D．developing new friendship |
Some kids need help from teachers to make friends because .
| A．they miss their old friends a lot |
| B．they have no time to stay with others |
| C．teachers know who wants a new friend |
| D．they are shy or not good at making friends |
In some science fiction movies, evil robots refuse to die, no matter how hard people fight back.
Now science fiction has become science fact. For the first time, scientists have made a robot that can take a beating(挨打) and keep on going. Scientists from Cornell University made the robot, which looks like a spider with four legs.
Until now, even the most advanced(先进的) robot was almost certain to break down when it was damaged(毁坏). That is because its computer inside simply doesn’t know how to make the machine work after its shape has changed.
To deal with this problem, the scientists put eight motors(发动机) and two sensors(传感器) that read how the machine is working. They all give signals to the machine’s software. Using this information, the computer can then figure out the machine’s shape at any moment.
The new technology is a big advance in robot-making, scientists say, and it’s far from scary. It may someday help scientists create better artificial(假的) arms and legs and give new freedom to people who lose them. It might also help scientists understand how people and animals figure out their own sense of place in space.
“It has been difficult to design robots that can work well when the environment changes or when it’s damaged,” says Olaf Sporns of Indiana University in US. “With this work, we are nearer to solving this problem.”Why do robots easily break down when they are damaged?
| A．They cannot repair themselves. |
| B．The computer has changed a lot. |
| C．They have no computers inside. |
| D．The computer cannot work if the robot changes |
The new technology allows the robot to .
| A．do housework for humans |
| B．keep working after being damaged |
| C．remember a lot of information |
| D．tell people where it is |
The underline word “them” in Paragraph 5 refers to .
| A．sensors | B．robots | C．arms and legs | D．scientists |
How do the sensors in the robot work?
| A．They can replace the computer when it’s broken. |
| B．They can find out where the damage comes from. |
| C．They help the computer learn the robot’s condition. |
| D．They can send signals to the person who uses the robot. |
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