阅读理解 CHICAGO- Have you ever worked on your laptop computer with it sitting on your lap, heating up your leg...

题型：阅读选择题类：常考题难易度：困难

浙江省杭州市2017年中考英语模拟试卷（五）

阅读理解

CHICAGO- Have you ever worked on your laptop computer with it sitting on your lap, heating up your legs? If so, you might want to rethink that habit from now on. Doing it a lot can lead to “toasted skin syndrome (症状)”, an unusual-looking spotted skin condition caused by long-term heat exposure (暴露), according to medical reports.

In one recent case, a 12-year-old boy from California developed a skin discoloration on his left lap after playing computer games a few hours every day for several months. “He recognized that the laptop got hot on the left side; however, he did not change its position,” Swiss researches reported in an article published Monday in the journal Pediatrics.

Another similar case is a Virginia law student who needed treatment for the spotted darkening on her leg. Dr. Kimberley Salkey, who treated the young woman, learned the student spent about six hours a day working with her computer placed on her lap. As Dr. Salkey later learnt, the temperature under the laptop could reach 51 degrees. That case, from 2007, is one of 10 laptop-related cases reported in medical journals in the past six years.

The condition can also be caused by overuse of heating pads (垫子) and other heat sources that usually aren't hot enough to cause burns. It's generally harmless but can also cause such permanent (永久的) skin darkening. In very rare cases, it can cause damage leading to skin cancers, said the Swiss researchers, Drs. Andreas Arnold and Peter Itin from University Hospital Basel. They do not mention any skin cancer cases linked to laptop use, but suggest, to be safe, placing a carrying case under the laptop if you have to hold it on your lap.

Dr. Kimberley Salkey said that under the microscope, the affected skin is similar to skin damaged by long-term sun exposure.

Major producers including Apple and Dell warn against placing laptops on laps or exposed skin for long periods of time because of the risks for burns. In the past, “toasted skin syndrome” has happened to workers whose jobs require being close to a heat source, including bakers and glass blowers, and in people who gathered near hot stoves to stay warm.

Dr. Anthony J. Mancini, chief at Children's Memorial Hospital in Chicago, said that it's unlikely that computer use would lead to cancer since it's so easy to avoid close skin contact (接触) with laptops.

（1）、According to the passage, “toasted skin syndrome” can be caused by all the following

EXCEPT ______.

A、being close to a heat source or hot stoves B、long period of direct contact to hot laptop C、using one's laptop with a carrying case D、overuse of heating pad and other heat sources

（2）、The underlined word “discoloration” in the 2nd paragraph refers to ______.

A、spot B、darkening C、sunburn D、heat

（3）、It can be learnt from the passage that laptop users ______.

A、should avoid close skin contact with laptops B、are likely to develop a certain kind of cancer C、have known much about the harm of laptop heating D、should go to see the doctor at once

（4）、Some computer producers warn against placing laptops on laps for long periods of time

because of ______.

A、the risk for burns B、the risk of dropping C、the risk of breaking D、the protection of back bone

（5）、Which of the following might be the best title of the passage? ______.

A、Laptop is Dangerous B、Skin Damage is Possible C、A Bad Habit D、No laps for Warm Laptops

举一反三

根据短文判断正误。
   What will life be like in 3000? Different people have different answers. Here is my answer.
   I think life will be very different in 3000. Every family will have a robot. The robot can do everything for people. So people won't have to do heavy and dull work. And they will have more free time to enjoy the things they like.
   People will wear special clothes in 3000. They don't have to wash the clothes because the clothes won't get dirty. There will be more kinds of food for people to enjoy. And they are all healthy food.
   People will use energy（能量） from the sun and the wind. So there won't be any pollution （污染）problems. People will use a special car to travel. It can run on the road and fly in the air. It will be very easy for people to travel to the moon and other planets（星球）. Some people will live in other planets.It will be a happy world in 3000.

BEIJING—No Car Day was first started by 34 cities in France on September22, 1998. It was started to protect the environment. By now, more than 1,000 cities around the world have had a No Car Day.
The first No Car Day in China was in Chengdu in 2001. Other cities, including Taipei, Shanghai and Wuhan, also support( 支持) the day.
In Beijing, more and more people are joining in the activity. It asks drivers to leave their cars at home for one day each month and walk or ride a bike to work. It also calls on Beijingers not to use cars on June 5 ( World Environment Day ).The slogan for the day is, “ If we drive for one less day, we can have one more nice day.”
So far more than 200,000 drivers have shown their support “ We can't control the weather, but we can choose not to drive,” said Wu Zonghua, a car club chairman. Beijing is trying to have 238 blue sky days this year. In the first quarter of this year, Beijing only had 52 blue sky days. This was 11 days less than the number for the same period last year. Much of the dust（灰尘） comes from the desert（沙漠）, but cars cause most of the air pollution.（污染）. We must do more for No Car Day.

   The London Olympic Games are coming soon. This summer, Chinese sports fans will be able to watch the exciting games in 3-D on CCTV.
    When you watch 3-D movies or TV, you have to wear a special pair of glasses. The 3-D glasses make the people and the things on the screen look like they are in the room with you.
   3-D, means having three dimensions: width, height and depth. 3-D technology is based on the way the human brain and eye work. Because the pupils of a person's eyes are about 6.5 cm apart, when we look at something, each eye sees it from different angle. Our eyes send the two pictures to our brain, and the brain puts them together. The small difference between the picture from the right eye and the picture from the left eye make us see depth.
   While watching 2-D films, we don't have to wear the special glasses. We see the pictures in two dimensions, each eye get the same information. This is because there is only one way of watching it.
   So the aim of 3-D technology is to get a different picture into each eye of the person. It uses two film projectors. One projects a left eye picture and the other projects a right eye picture. When we are in the cinema, we can see different pictures in each eye at the same time with the help of the 3-D glasses.
   While watching 3-D films, we feel that we are actually in the same environment as the things we are watching. However, some people are against watching 3-D films. One of the reasons is the 3-D glasses makes the screen of the film or TV look darker. It is bad for eyes. What's more, people with eye problems may get headaches if they spend too much time watching 3-D movies, because their brains need to work harder to “read” the pictures.

根据短文内容，选择正确答案。
    Maybe you know floods, earthquakes, sandstorms and so on. But have you heard of typhoons?
    Typhoons are some of the worst storms, usually around the Pacific Ocean and the South China Sea. Most happen in July, August and September.
    How does a typhoon happen? When lots of sea water gets hot in the summer sun, it evaporates （蒸发）into the air. This makes the air hotter. When the air gets warm enough, it starts to move higher up into sky. Then cooler air around it rushes in. It fills the space that is left. After the air gets warmer, it starts to move quickly, making wind. The wind goes in circles（圆圈）and it keeps moving higher in the sky. The warmer the air gets, the quicker the wind moves. And when the wind moves faster than 30 metres a second, a typhoon begins.
    A typhoon has two parts, one is called the “eye”. In the eye, the wind does not move so fast. The other part is the wall of clouds around the eye. Here are the strongest winds and hardest rains.
    Typhoons are very dangerous. In November this year, Typhoon Haiyan killed 5500 people in Philippines. More people are missing.
  What to do when a typhoon hits?
    Stay inside. Close all the windows and stay away from them.
    Try to bring all of your things inside. Strong winds could even blow away your bikes!
    Listen to the radio or TV for important information.
    If you're told to go to a safer place, do it right now.

阅读理解

Have you ever heard of e-waste(electric waste,电子垃圾), which can be produced every day? How do you deal with your computers, MP4 players and mobile phones when they're broken or you want a new one?

Most people just throw them away. With the development of electric industry, e-waste pollution has become a serious problem. According to the United Nations, in 2014, people around the world produced 41.8 million tons of e-waste and only recycled 6.5 million tons. The US was the biggest waster, producing 7.1 million tons. China came second, with 6 million tons.

It's important to pay attention to e-waste. It can either be valuable or harmful（有害的）, depending on how we deal with it. E-waste is a valuable urban mine（城市矿藏）. The value of the metals, like gold and silver in the waste around the world, is amazing. And the metals can be reused. But if people throw them away, the toxic chemicals（有毒化学物质） can get into the earth or air,effectingthe environment and people's health.

Apple, for example, now recycle people's used products in China when they are buying new ones. The company will test and repair the used ones and sell them at lower prices. To help reduce（减少）e-waste, we can also take computers and phones to see if companies offer recycling programs.

阅读短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。

People don't like trash. Trash is smelly, dirty, ugly, broken and useless. That's why we throw it out. But everyone knows that trash influences our environment. It can pollute our land, water and air. So it's important to recycle our trash as much as possible.

Some Americans were very interested in recycling and they were curious about what really happened to their trash. So, what did they do? They became detectives and decided to "Follow that trash!"

They took some items out of their recycling bin and put electronic tags (标签) on them. The tags sent signals to a computer so people could follow their trash on its journey. They found that some trash only travelled a few kilometers but much of it went into landfills.

Waste management companies in America think this detective work will be helpful to them. Dealing with waste is very expensive and this u trash tracking" will help them to become more useful. It will save their time and money.

However, the trash detectives say it's also important to reduce the amount of trash we produce. After all, if we produce less waste, we won't have to worry about where it goes.

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