Carbon monoxide poisoning (一氧化碳中毒) causes death and injuries around the world. This gas is a problem in all parts of the world that experience cold weather. A few years ago, America’s Centers for Disease Control (C. D. C.) studied deaths linked (联系) with carbon monoxide poisoning. It found that the number of carbon monoxide deaths in the United States was greatest in January. The C.D.C. also found that carbon monoxide kills more than four hundred Americans each year. And, it said more than twenty thousand people are taken to hospital for treatment of health problems linked with the gas.

   Carbon monoxide is called the silent killer because people do not know it is in the air. The gas has no color, no taste and no smell. It does not cause burning eyes. And it does not cause people to cough. Yet, carbon monoxide gas is very deadly (致命的). It steals the body’s ability to use oxygen.

Carbon monoxide makes it difficult for the blood to carry oxygen to body tissues (血管). It does this by linking with the blood. When the gas links with the blood, the blood is no longer able to carry oxygen to the tissues that need it. Damage (损害) to the body can begin very quickly from large amounts (数量) of carbon monoxide.

How quickly this can happen depend on how long a person is breathing the gas and how much gas he or she breathes in.

   Carbon monoxide poisoning has warning signs(标志). But people have to be awake to realize them. Small amounts of the gas will cause a person’s head to hurt. He or she may begin to feel tired. Their stomachs may feel sick. The room may appear to be turning around. The person may have trouble thinking clearly.

People develop serious headache as the amount of the gas continues to enter their blood. They will begin to feel very tired and sleepy. They may have terrible stomachache.

Doctors say carbon monoxide influences people differently. For example a small child will experience health problems or die much sooner than an adult. The general health of the person or his or her age can also be important.

1.The damage of carbon monoxide to the body has something to do with _____.

A. the amount a person breathes in         

B. whether a person is healthy

C. how many signs a person finds           

D. ages of people

2.One of the signs of carbon monoxide poisoning is _____.

A. burning eyes                         B. bad cough

C. serious headache                     D. high fever

3.Which of the following is TRUE according to the passage?

A. Carbon monoxide poisoning seldom happens in cold areas.

B. Twenty thousand Americans are killed by carbon monoxide each year.

C. Most people know whether there is carbon monoxide in the air.

D. Carbon monoxide stops the blood from carrying oxygen to body tissues.

4.What does the passage mainly talk about?

A. Warning signs that carbon monoxide poisoning has.

B. Reasons why carbon monoxide can cause person’s death.

C. The damage of carbon monoxide and how it works.

D. Influences of carbon monoxide on children and adults.

“Mind your own business．” we’re told．“Don’t talk about others behind their backs．”The problem with this advice is that，not only is it unrealistic，it’s also counterproductive(起反作用的)．

??? Common sense holds that gossip(流言蜚语)hurts people’s feelings and damages relationships．But recent research shows the opposite—that strong communities and relationships between people would be impossible without gossip．

??? Gossip is a way for people to let you know the limits of social behavior．“If you move into a community and your neighbor tells you how the former homeowner never dealt with his rubbish properly，his gossip is letting you in on something，”says Dr．Ralph Rosnow of Temple University．“Gossip says：these are the boundaries and you are crossing them．You’re not abiding by the rules and you’d better get back in line．” Seen this way，gossip is a way to communicate criticism(批评)without conflict(冲突)，giving you a chance to change your behavior without losing face．

??? On the other hand，what about ill-willed gossip，the kind that puts other people down? Gossip is hearing something we like about someone we don’t and，in nearly every country in the world，gossip magazines have huge numbers of readers．According to researchers，however，this kind of gossip also has a good side because it helps us put our own problems in perspective(正确地)．“If we read bad news about well-known people，or get the frightful details of our neighbors’ bad situation over a cup of coffee，our own problems begin to pale in comparison(对比)，”says Dr．Jack Levin of Northeastern University．

??? However，that doesn’t mean that gossip is necessarily a good thing，either．Researchers found that people who gossip a lot tend to feel like they’re under a lot of stress．This might be because while they’re busy talking about other people，they’re also busy thinking what other people are saying about them．
1.What is the purpose of the text?

A．To encourage us to spread gossip about others．

B．To prevent us from spreading gossip about others。

C．To make a comparison between good gossip and bad gossip．

D．To recognize certain positive functions of gossip．

2.According to the passage，people in general think that__________．

A．it’s a bad habit to gossip

B．nobody pays attention to gossip

C．not all the gossip you hear is worth believing

D．it’s necessary to have a nice gossip with a friend or neighbor

3.The underlined phrase “abiding by” in Paragraph 3 most probably means“________”．

A．making??? ????????????? ????????????? B．breaking??? ????????????? ????????????? C．obeying??? ????????????? D．changing

4.It could be learned from the passage that__________.

A. people under much stress enjoy gossiping about others.

B. in a way gossip helps us deal with our own problems.

C. in fact most people tend to believe gossip.

D. the more there is gossip, the stronger relationships become between people.

Carbon monoxide poisoning (一氧化碳中毒) causes death and injuries around the world. This gas is a problem in all parts of the world that experience cold weather. A few years ago, America’s Centers for Disease Control (C. D. C.) studied deaths linked (联系) with carbon monoxide poisoning. It found that the number of carbon monoxide deaths in the United States was greatest in January. The C.D.C. also found that carbon monoxide kills more than four hundred Americans each year. And, it said more than twenty thousand people are taken to hospital for treatment of health problems linked with the gas.
Carbon monoxide is called the silent killer because people do not know it is in the air. The gas has no color, no taste and no smell. It does not cause burning eyes. And it does not cause people to cough. Yet, carbon monoxide gas is very deadly (致命的). It steals the body’s ability to use oxygen.
Carbon monoxide makes it difficult for the blood to carry oxygen to body tissues (血管). It does this by linking with the blood. When the gas links with the blood, the blood is no longer able to carry oxygen to the tissues that need it. Damage (损害) to the body can begin very quickly from large amounts (数量) of carbon monoxide.
How quickly this can happen depend on how long a person is breathing the gas and how much gas he or she breathes in.
Carbon monoxide poisoning has warning signs(标志). But people have to be awake to realize them. Small amounts of the gas will cause a person’s head to hurt. He or she may begin to feel tired. Their stomachs may feel sick. The room may appear to be turning around. The person may have trouble thinking clearly.
People develop serious headache as the amount of the gas continues to enter their blood. They will begin to feel very tired and sleepy. They may have terrible stomachache.
Doctors say carbon monoxide influences people differently. For example a small child will experience health problems or die much sooner than an adult. The general health of the person or his or her age can also be important.
【小题1】The damage of carbon monoxide to the body has something to do with _____.

根据材料内容选择最佳答案，并将其标号填入题前括号内。
These days, when the world seems to be hard to control, walking can make you feel peaceful. It gives you a chance to slow down, to relax and to appreciate yourself and your life in general. It helps you slow down enough to breathe deeply, to calm your thoughts, and to research the natural world filled with wonders. And yes, to love yourself more.
Try to spend one day for a long travel on foot—far from the requirements of work and family. First, choose a date and mark it as your “relaxing day”. Next, choose a place that you want to visit on foot. If you enjoy being out in nature, head to a wide and open place. Try to choose a place that’s no more than 15 minutes from your home. You want to spend your time walking, not driving.
Walk at an easy speed so you can walk longer and farther. If you normally walk two miles a day, go for four to six miles. Wear comfortable clothes. If it’s warm, wear a hat to protect your face. And don’t forget your sunglasses— not only to protect your eyes but also to give you a sense of privacy while you walk.
Before you go out, get up early so you can spend a few minutes relaxing. Relaxing is something few people spend in their spare time, but it leaves you feeling much lighter and less annoyed. Read something relaxing before you leave home, and it’ll put you in a different condition of mind. And, of course, eat a healthy breakfast and drink plenty of water. Then pick up your backpack and head out. And enjoy yourself.
【小题1】From the passage, we can control our feeling by______.