A myth is something that is not correct, but many people believe it. There are a lot of myths about the human brain.
One of the biggest myths is that we only use 10% of our brains. The next part of the myth is that if we can learn to use the rest of our brains, then we’ll be much smarter. People say this all the time, but it’s completely not true! The truth is that although we don’t know everything about the human brain, we know that each part of it has an important function (功能) . Modern scientists think the “10% myth” silly.
The other most popular myth is about being “right brained” or “left brained”. According to this myth, people who use the right side of their brains are more artistic and creative. People who use the left side of their brains are better at math and science. This is as popular as the 10% myth, and it’s also wrong. In 2013, a study at an American university tested the right brain and left brain myth. The study shows we use the left brain as much as the right brain.
It’s true that we use different parts of our brains for different things. We use our left side for language more, and our right side when we need to pay attention. But there is no evidence (证据) that creative people use the right side more or that scientific people use the left side more.
We’ve talked about myths, so let’s look at a few interesting facts about the brain. First of all, the brain feels no pain. Second, about 75% of the brain is made of water. It’s also the fattest organ (器官) in your body. Here’s another interesting fact about the brain. Around the time you turn 18 years old, it stops growing.
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【小题1】What do scientists think of the “10% myth”?
| A．Not important. | B．Not useful. | C．Not true. | D．Not interesting. |
| A．the left brain myth | B．the right brain and left brain myth |
| C．the use of human brains | D．the study of an American university |
| A．Robert, who is learning English | B．Kate, who is drawing pictures |
| C．Jenny, who is designing clothes | D．Jacob, who is doing research |
| A．It is growing all life long. | B．The right side is used more by artists. |
| C．Some parts of it are not used at all. | D．Three quarters of it is made of water. |
| A．the growing of the brain | B．different functions of the brain |
| C．right brain and left brain | D．myths and facts about the brain |
 Make your own rainbow（彩虹） Learn how to make a rainbow with this fun science experiment for kids. This will help bring the exciting world of science to life. What you’ll need ●A glass of water.（about three quarters full）. ●White paper ●A sunny day Instructions 1. Take the glasses of water and paper to a part of the room with sunlight（better near a window）. 2. Hold the glass of water above the paper and watch as sunlight passes through the glass of water. The sunlight is refracted and forms a rainbow of colors on your paper. 3. Try holding the glass of water at different heights and angles(角度) to see what may happen. Rainbows form in the sky when sunlight is refracted as it passes through raindrops; it acts in the same way when it passes through your glass of water. The sunlight refracts, separating it into the colors red, orange, yellow, green, blue, indigo and violet. |
【小题1】What’s the experiment about?
| A．Physics. | B．Chemistry. | C．History. | D．The environment. |
| A．two | B．three | C．four | D．five |
| A．Start the experiment at late night. | B．Hold the glass of water at the same height. |
| C．Put the paper above the glass of water. | D．Put the paper under the glass of water. |
Scientists are warning that smokers are in danger of damaging their eyes. Smoker are two times more likely to lose their vision than non-smokers. Smoking damages the lungs and heart. Not many people know it also damages the eyes.
The Association of Optometrists (AOP) started a campaign(活动) to tell people about the danger of smoking to the eyes. The campaign is called “Stub it out”. The word “stub” means put out a cigarette by pushing the end against something. It is also saying “stop smoking”. The AOP said only one in five people thinks smoking damages the eyes.
The AOP explained why smoking harms the eyes. Cigarette smoke gets in the eyes and causes different problems. The smoke has poisons that can damage the eyes, such as lead. This can get into the eyes and lead to cataracts(白内障)—that causes the eyes to become cloudy. The AOP has said smokers should give up smoking.
【小题1】Smokers are warned in danger of ________.| A．damaging their noses | B．damaging their eyes |
| C．damaging their mouths | D．damaging their hands |
| A．Smoking damages the lungs and heart. | B．Smoking damages the eyes. |
| C．Smoking can help lose their vision. | D．Smoking causes the eyes to become cloudy. |
| A．Smoke. | B．Go on smoking | C．Don’t stop smoking | D．No smoking. |
| A．Become clear. | B．Become blear (模糊的). | C．Become painful | D．Become sunny. |
Today almost everyone knows computers and the Internet. If I ask you “What is the most important in your life?”, maybe you will say “Computers and the Internet.”
The first computer was made in 1946. It was very big but it worked slowly. Today computers are getting smaller and smaller. But they work faster and faster. What can computers do? A writer has said. “People can’t live without computers today.”
The Internet came a little later than computers. It is about twenty-five years later than computers. But now it can be found almost everywhere. We can use it to read books, write letters, do shopping, play games or make friends.
Many students like the Internet very much. They often go into the Internet as soon as they are free. They make friends on the Internet and maybe they have never seen these friends. They don’t know their real names, ages, and even sex. They are so interested in making the “unreal friends” that they can’t put their hearts into study. Many of them can’t catch up with others on many subjects because of that.
We can use computers and the Internet to learn more about the world. But at the same time, we should remember that not all the things can be done by computers and the Internet.
【小题1】The Internet can not be used for ________.| A．studying | B．thinking | C．shopping | D．playing |
| A．large and worked quickly | B．small and worked slowly |
| C．large but worked slowly | D．small but worked quickly |
| A．1960 | B．1971 | C．1980 | D．1985 |
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