Many children think mobile phones are cool. They come in fun colors and let you talk with friends anytime and...

题型：阅读选择题类：常考题难易度：普通

    Many children think mobile phones are cool. They come in fun colors and let you talk with friends anytime and anywhere.
In the U.S., more than 90 million people use mobile phones. Many of these people are children. For children, mobile phones are more than phone calls. They are fashionable.
    Most mobile phone users don't think about the health problems caused(引起) by mobile phones. Some scientists say that mobile phones give off radiation(辐射) that might be bad for the users. One newest study shows that mobile phone radiation might raise(增加) a person's chance of getting some kinds of cancer(癌症). Other scientists say mobile phones don't threaten people's health. They say that they have not found any link(联系) between phone use and cancer.
    Scientists say that people can protect (保护) themselves from mobile phone radiation. One way is to use a headset(耳机). Or people can make shorter call.

（1）、Many children like mobile phones because they think mobile phones are _________.

A、cool B、small C、cheap D、their toys

（2）、Many of the mobile phone users in the U.S. are ___________.

A、girls B、boys C、scientists D、children

（3）、Some scientists think mobile phones aren't _________ for users health. They causes some kinds of cancer

A、bad B、good C、wrong D、helpful

（4）、The underlined word “threaten” in the passage means ____________.

A、威胁 B、担心 C、治疗 D、证实

（5）、What should people do to protect themselves from mobile phone radiation?

A、Make longer calls B、Use a headset C、Make shorter calls D、Both B and C

举一反三

    Thinking is something you choose to do as a fish chooses to live in water. To be human is to think. But thinking may come naturally without your knowing how you do it. Thinking about thinking is the key to critical(批判性的) thinking. When you think critically, you take control of your thinking processes（过程）. Otherwise, you might be controlled by the ideas of others. Indeed, critical thinking is at the heart of education.
    The word “critical”here has a special meaning. It does not mean taking one view against another view, as when someone criticizes another person for doing something wrong. The nature of critical thinking is thinking beyond the easily seen--beyond the pictures on TV, the untrue reports in the newspapers, and the faulty reasoning.
    Critical thinking is an attitude as much as an activity. If you are interested in life and want to dig deeper into it, you are a critical thinker. If you find pleasure in deep thinking about different ideas, characters, and facts, you are a critical thinker.
    Activities of the mind and higher-order reasoning（推理）are processes of deep and careful consideration. They take time, and do not go hand in hand with the fast speed in today's world: fast foods, instant coffee, and self-developing film. If you are among the people who believe that speed is a measure（尺度）of intelligence（智慧）, you may learn something new from a story about Albert Einstein. The first time Banesh Hoffman, a scientist, was to discuss his work with Albert Einstein. Hoffman was too nervous to speak. But Einstein immediately made Hoffman feel comfortable by saying, “Please go slowly. I don't understand things quickly.”

    Most people want to be happy, but few know how to find happiness. Money and success alone do not bring lasting happiness. Aristotle, a Greek thinker, said, "Happiness depends upon (取决于)ourselves." In other words, we make our own happiness. Here are a few suggestions（建议） to help you be happier.
    The first secret of happiness is to enjoy the simple things in life. Too often, we spend so much time thinking about the future. For example, getting into college or getting a good job －that we fail to enjoy the present. You should enjoy life's simple pleasures, such as reading a good book, listening to your favorite music, or spending time with close friends. People who have several close friends often live happier and healthier lives.
    Another secret to living a happy life is to be active, and have hobbies where you forget your problems and time. Many people experience this dancing, or playing a sport, such as swimming. You can forget about your problems, and only think about the activity.
    Finally, many people find happiness in helping others. Studies show that people feel good when they spend their time helping others. If you want to feel happier, do good things for someone. You can help a friend with his or her studies, go shopping to buy food for an elderly person, or simply help out around the house by washing the dishes.

    A study finds that not enough morning light causes teenagers not to get enough sleep at night. “As teenagers spend more time indoors, they miss necessary morning light. Day light is needed to keep the balance of the body's 24-hour biological system (生物系统), which regulates (调节) body temperature and sleep styles,”reports Dr. Mariana Figueiro. “These teenagers who receive little morning light are going to bed later, getting less sleep and doing badly in tests. They are more likely to fail in their exams.”
    In the study, Dr. Figueiro asked 11 students in Grade 8 to wear special glasses to prevent blue morning light from reaching their eyes. At the end of the 5-day study she found that they fell asleep 30 minutes later than usual.
    Throughout her research, Dr. Figueiro has been very worried about teenagers going to bed too late. The problem is that today's schools require teenagers to be in school very early in the morning. These students are likely to miss the morning light because they often go to school before the sun is up or as it's just rising.
    Furthermore (此外), the schools are not likely to provide enough electric light to keep the balance of this biological system. Our biological system is much more sensitive (敏感的) to blue light. Therefore, having lots of light in the classroom does not make sure that there is enough light to keep our biological system balanced.

阅读理解

According to a new study, cats may be just as smart as dogs. Both cats and dogs may have episodic memory（情景记忆）, similar to that of human beings.

The discovery shows that cats can recall memories of positive experiences like eating a delicious snack. The study was a test of episodic memory. Episodic memory means memory of past experiences that happened at a special time and place.

In the test, cats were led to four open bowls of food. They were allowed to eat from two of them. After fifteen minutes, empty bowls took the place of the old ones. Then the same cats returned to look for food again. They spent more time searching for the old bowls.

It seemed that the cats were able to remember the information of “what” and “where” about the bowls. This discovery suggests that they may have episodic memory. However, it's still not clear whether cats can truly experience past memories in the same way as human beings do. “It's difficult to know whether the cats can subjectively（主观地）remember the experience,” Nick Diamond, a researcher at the University of Toronto, explained.

Still, the test plays an important role in the development of memory research in animals. “It opens the door to new studies. How long can cats' memories last? We may do some research on this in the future,” Professor Laurie Santos from Yale University told BBC News.

The road to new discoveries is long and difficult. Though there are lots of problems to be solved and discussed along the way, such studies do lead us a step closer to the final success.

根据短文内容，用方框中所给单词填空，使短文意思完整、连贯。

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There are many wetlands (湿地) in China ‒ and some of them have become the world's important wetlands. The Chinese Yellow Sea Wetlands are {#blank#}1{#/blank#} them. They are in Yancheng, Jiangsu Province. They are {#blank#}2{#/blank#} to many different kinds of animals. The world's {#blank#}3{#/blank#} Milu deer nature reserve (自然保护区) is on these wetlands. More than 700 Milu deer live there. There are not many red-crowned cranes (丹顶鹤) {#blank#}4{#/blank#} in the world, but every winter, you can see some in the red-crowned crane nature reserve in the Yellow Sea Wetlands.

The {#blank#}5{#/blank#} in the wetlands is neither too high nor too low. There is {#blank#}6{#/blank#} rain and sunshine, too. They are a good place for wildlife. But offering food and shelter for special kinds of animals is not the {#blank#}7{#/blank#} reason we need to protect wetlands. Wetlands are important {#blank#}8{#/blank#} they also prevent floods. But some people want to {#blank#}9{#/blank#} the wetlands to make more space for farms and less space for wildlife.

More people are beginning to realize the {#blank#}10{#/blank#} of wetlands and wildlife. Every year, on Feb 2, many activities are held to teach people about the wetlands.

阅读理解

In the year 2070，most of you will be more than 50 years old.The good news is that travel might become smarter by that time.To catch people's eyes and increase the numbers of passengers，European airline （航空公司）（发布）easyJet 2070：The Future Travel Report.Let's take a look at some mind—blowing ideas.

① ▲

Paper passport will be a thing of the past.You will use"heartbeat passport" instead.According to experts，the machine will count how many times the heart beats in a minute，then it will tell who you are.It doesn't work hard because everyone's heart beats differently.

② ▲

The seats on the plane are only one size，which can't make passengers satisfied.But in the future，you'll be able to book a seat according to your body type.The seat might even be able to cool or warm you if you want.There will also be no more screens on the back of the seats.A special light from the seat could show the latest movie s straight in front of your eyes.

③ ▲

If you like to visit great places of interest，the AR glasses will help you enjoy the journey.By wearing the AR glasses，you can see what happened at a historic place（战役）.You may even be able to sit among the cheering people at the first Olympic Games.

Are you looking forward to having those changes in the year 2070？What other changes do you think about during the flight？

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