题目
题型：不详难度：来源：
You probably know how to ride a bike safely. Now learn to use a computer safely.
Your eyes--Too much light can injure your eyes, so never sit too close to a computer screen. Your eyes should be at least 50 centimeters (厘米) from the screen. Remember to look away from it sometimes. This gives your eyes a rest.
When you use a computer, the window should be on your left or your right. If it is behind you, the light will reflect (反射) on the screen. If the window is in front of you, the sun and the screen will both shine into your eyes.
Your hands--Hand injuries can happen because the hands are moved in the same way hundreds of times. If you use a keyboard for a long time, follow this rule: Stop sometimes and exercise your hands and fingers in different ways.
Your back--Some people sit for many hours in front of a computer. If you sit in the wrong way, you can injure your back and your neck. So you should sit with your back straight. The top part of the screen should be in front of your eyes. If you are sitting for a long time, get up every 30 minutes and exercise your arms, legs and neck.
Enjoy your computer, but use it safely.
小题1:How many kinds of computer injuries are mentioned in this passage?
| A．One. | B．Two | C．Three. | D．Four. |
| A．you sit 60 centimeters away |
| B．you remember to look away |
| C．your eyes are too close to it |
| D．the window is on your left or right |
| A．you work near a window |
| B．you often take rests from working |
| C．you use a keyboard for a long time |
| D．the window is behind you |
| A．You should sit with your back straight while you work on a computer. |
| B．Staying in front of a computer too long may injure your eyes. |
| C．When you work on a computer, your hands almost move in the same way. |
| D．The writer thinks that computer is bad for your health. |
| A．How to protect your eyes |
| B．How to protect your hands |
| C．How to use a computer safely |
| D．How to protect your back |
答案
小题1:C
小题2:C
小题3:B
小题4:D
小题5:C
解析
试题分析：本文指出电脑可以伤害你。大多数其他的伤病是突然发生的，但是电脑伤害的发生是缓慢的。并且告诉人们使用电脑时如何保护自己的一些方法
小题1:C细节理解题。根据第三段提到Your eyes--Too much light can injure your eyes, so never sit too close to a computer screen还有第五段Your hands--Hand injuries can happen because the hands are moved in the same way hundreds of times还有第六段提到Your back--Some people sit for many hours in front of a computer.电脑会伤害你的眼，手还背部，故选C项。
小题2:C细节理解题，根据文中语句“Too much light can injure your eyes, so never sit too close to a computer screen.”理解可知强光会伤害你的眼睛，不要做得太近离屏幕，故选C项。
小题3:B细节理解题。根据短文描述Remember to look away from it sometimes. This gives your eyes a rest.,可知工作中时常的休息,对眼睛和手来说是安全的,故选B
小题4:D 细节理解题。根据最后一段提到Enjoy your computer, but use it safely.享受你的电脑，但要正确的运用，可知并不是说电脑对你的健康有坏处，而是讲合理应用，故选D项。
小题5:C主旨大意。这篇短文主要描述了使用电脑过程中的一些安全问题,故选C,如何安全的使用电脑。
核心考点
试题【Computers can injure you. Most other injuries happen suddenly. For example, if y】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
But every day I went to see the doctor, I had to wait about 50 minutes. He would see two or three patients at the same time, and often stop treating one so as to see another. Yet he charged me $115 each time .The final examination report consisted of ten lines, and it cost me $215.
With proper planning, though, it is possible to control your weight. The idea is to enjoy the holidays but not to eat too much. You don"t have to turn away from the foods that you enjoy. The following suggestions may be of some help to you.
Do not miss meals. Before yon leave home for a feast(宴会),have a small, low-fat snack(小吃). This may help to keep you from getting too excited before delicious foods. Begin with clear soup and fruit or vegetables. A large glass of water before you eat may help you feel full. Use a small plate; a large plate will encourage you to have more than enough.
Better not have high-fat foods. Dishes that look oily or creamy have much fat in them.
Choose lean meat(瘦肉 ).Fill your plate with salad and green vegetables.
If you have a sweet tooth, try mints (薄荷) and fruits. They don’t have fat content as cream and chocolate.
Don’t let exercise take a break during the holidays. A 20-minute walk after a meal can help burn off excess(过多的) calories.
小题1:Holidays are happy days with pleasure but they may ______
| A．bring weight problems |
| B．bring you much trouble in your life |
| C．make you worried about your foods |
| D．make you hate delicious foods |
| A．drink much water and have vegetables only |
| B．not eat the food in high fat |
| C．not accept invitations to feasts |
| D．turn away from delicious foods |
| A．Vegetables | B．Water | C．calories of energy | D．physical exercise |
| A．can"t control themselves |
| B．go to too many feasts |
| C．enjoy delicious foods |
| D．can"t help turning away from the foods |
When Dan Rather interviewed comedian Bill Cosby just one week after his son, Ennis, was killed, Cosby said, “I think it is time for me to tell people that we have to laugh. You can turn painful situations around through laughter. If you can find humor in anything, you can survive it.”
Call it a flashlight for dark times: laughter just seems to adjust attitude better than anything else. Inspirational speaker Steve Rizzo recalls a TV interview with an injured firefighter a few days after 9.11．The man had fallen more than 30 stories in one of the towers and had broken a leg. Everyone was crying, and the reporter asked, “How is it that you’ve come out of this alive?” He looked at her and without missing a beat, said, “Look, lady, I’m from New York and I’m a firefighter; that’ all you need to know.”
“Everyone laughed and though the laughter was only a couple of seconds,” says Rizzo. “Sometimes that’s all you need to catch your second breath. Laughter gives you that couple of seconds. You’re sending a message to your brain, and the message is: If you can still laugh even a little among the pain, you are going to be OK.”
Of course, there is a difference between laughing off a serious situation and laughing off the fear that results. The firefighter was doing the latter, states Rizzo, the author of Becoming a Humorous Being, and so should we. “If there is anything we have learnt from 9.11, it’s how precious life really is,” she says. “We have to send a message that our spirit won’t die. One important thing that unites us is our ability to laugh.”
小题1:The writer uses the examples of the comedian and the firefighter to show .
| A．laughter is a good way to get rid of pain and fear |
| B．laughter is the best way to cure psychological wounds |
| C．it is your attitude that decides whether you can survive the pain or not |
| D．laughing off a serious situation is different from laughing off the fear that results |
| A．a reporter | B．a soldier | C．a firefighter | D．a doctor |
| A．hopeless | B．useless |
| C．careless | D．worthless |
| A．really inspired after 9.11 | B．hardly united after 9.11 |
| C．nearly surprised by 9.11 | D．greatly hurt by 9.11 |
Yes, it turns out that overweight may damage cognitive functions (认知功能) such as memory and attention. There have been few studies of overweight and cognitive functioning, possibly because it is generally believed that it is not a primary risk cause for poor cognitive performance. Losing weight, therefore, may help improve these mental functions, according to a new research led by John Gunstad, assistant professor of psychology at Kent State University.
Growing evidence suggests that being fat is linked to cognitive deficits (缺陷). So Gunstad and his team guessed that losing weight might improve mental function. For their study, they measured memory and attention in a group of 150 overweight participants, some of whom had some kind of operation for weight loss and some did not. All of the volunteers completed mental skills tests to assess their abilities of memory and attention at the beginning of the study, and again 12 weeks later. To begin with, about 24% of the patients showed damaged learning and 23% showed signs of poor memory when tested. At the end of the study, those who had lost weight after operation improved their scores into the average or above average range for cognitive functions. Scores for the volunteers who didn’t lose weight dropped even further.
The study helped Gunstad to find out whether losing weight had any effect on mental function. Now that he’s seen the positive effect that weight loss can have on memory and attention, he says he will next study those who choose to lose weight by the traditional way—eating healthier and getting more active. He expects that losing weight in this way will have a similarly positive effect on the brain. “If we can improve the condition with operations, then we can probably produce the same change with behavioral weight loss as well,” he says.
小题1:There is less research on overweight and cognitive functions because researchers _____.
| A．believe overweight only affects our body |
| B．have focused on ways to sharpen people’s mind |
| C．do not consider overweight a main cause for low cognitive ability |
| D．are clear about the relation between weight and mental functions |
| A．losing weight has little effect on people’s memory |
| B．losing weight can improve people’s mental functions |
| C．overweight people are likely to have psychology problems |
| D．overweight people’s abilities of concentration differ greatly |
| A．Slim people are smarter than overweight people. |
| B．Healthy diet is better than exercise in losing weight. |
| C．Traditional ways of losing weight are better than operation. |
| D．Overweight people will get smarter by taking more exercise. |
| A．Body Weight and Health |
| B．Losing Weight by Operation |
| C．Ways to Improve Mental Functions |
| D．Losing Weight to S harpen Your MindD |
As a matter of fact, jumping rope can be great fun as long as you find a proper way to practise it. Instead of doing the usual two-foot bounce(跳)over and over again, players good at rope-jumping often change their pattern every 10 or 20 jumps: a single bounce, a double-bounce, a skip, a knee-up, side swings, as well as a variety of other easy-to-learn free-style rope-jumping.
Nowadays researchers are discovering that jumping rope also prepares the brain for learning. It is an exercise allowing both brain hemispheres(半球)to perform equally to each other.
In short, jumping rope can be a life-long activity requiring little equipment, time and space, yet leading to a much healthier life.
小题1: One reason that can explain why rope-jumping has not spread widely is that
.
| A．it benefits the cardiovascular system |
| B．it is too difficult for people to learn to jump |
| C．it is believed to be boring and repetitive |
| D．it requires little equipment, time and space |
| A．there is only one proper way to follow |
| B．the usual way should not be used again |
| C．the easiest way is always the best one |
| D．there are different kinds of ways to follow |
| A．only prepares the brain for learning |
| B．is suitable for students only |
| C．helps both brain hemispheres work together |
| D．can be dangerous for old people |
| A．He is strongly against it. |
| B．He is for it. |
| C．The passage doesn’t mention it. |
| D．He knows little about it. |
We can understand why the whistle language continues. It is very useful on the island, and quite easy to learn. When somebody is hurt or ill, the whistle language takes the place of the telephone. If the sick person is a long way from the town, boys and men pass the news from one to another. A boy guarding cattle on a hillside whistles to a man fishing from his boat. The last one is able to describe the trouble fully and exactly to the doctor in town. People help each other in the same way when a car breaks or a cow is lost.
The whistle language is hundreds of years old, and probably it will continue to live for hundreds of years more. Radio and TV often kill the special ways of speaking in the different parts of a country. But on Comera island you are nobody if you cannot whistle. Perhaps soon after TV arrives on the island, the people there will be whistling the news and other facts and opinions.
小题1:If a person on Comera island is ill, .
| A．others will phone the doctor in town |
| B．the whistle language will pass the news to the doctor |
| C．his family will take him to the doctor |
| D．people will take him to the hospital |
| A．killed the special ways of speaking |
| B．whistled all the news and opinions |
| C．helped Comera people to communicate |
| D．did not appear on Comera island yet |
| A．it attracts visitors every year |
| B．no visitors have ever been there |
| C．people there have special ears to hear whistles |
| D．people there use the whistle language to communicate with each other |
| A．It is not easy for a person to live on Comera island if he cannot whistle. |
| B．The whistle language can only be found on Comera island. |
| C．The whistle language has been used for hundreds of years on the island, but will not be used any longer. |
| D．The record shows that one best whistler can be heard by others seven miles away. |
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