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第4部分：阅读理解（第31～45题，每题3分，共45分）
下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题确定1个最佳选项。
第一篇 Cell Phones: Hang Up or Keep Talking?
Millions of people are using cell phones today. In many places it is actually considered unusual not to use one. In many countries, cell phones are very popular with young people. They find that the phones are more than a means of communication — having a mobile phone shows that they are cool and connected.
The explosions around the world in mobile phone use make some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.
On the other hand, why do some medical studies show changes in the brain cells of some people who use mobile phones? Signs of change in the tissues of the brain and head can be detected with modern scanning（扫描）equipment. In one case, a traveling salesman had to retire at a young age because of serious memory loss. He couldn’t remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer’s doctor didn’t agree.
What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.
As the discussion about their safety continues, it appears that it’s best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it’s wise not to use your mobile phone too often.
31．People buy cell phones for the following reasons EXCEPT that
A．they’re cheap.
B．they’re popular
C．they’re useful.
D．they’re convenient.
32．The word “detected” in paragraph 3 could be best replaced by
A．cured.
B．removed.
C．caused.
D．discovered.
33．The salesman retired young because
A．he disliked using mobile phones.
B． he was tired of talking on his mobile phone.
C． he couldn’t remember simple tasks.
D．his employer’s doctor persuaded him to.
34．On the safety issue of mobile phones, the manufacturing companies
A．deny the existence of mobile phone radiation.
B． hold that the amount of radiation is too small to worry about
C． develop new technology to reduce mobile phone radiation.
D．try to prove that mobile phones are not harmful to health.
35．The writer’s purpose of writing this article is to advise people
A．to buy mobile phones.
B． to update regular phones.
C． to stop using mobile phones.
D．to use mobile phones less often.
第二篇 Preventing Child Maltreatment（虐待）
Child maltreatment is a global problem with serious life-long consequences. There are no reliable global estimates for the prevalence（流行）of child maltreatment. Data for many countries, especially low-and middle-income countries, are lacking.
Child maltreatment is complex and difficult to study. Current estimates vary widely depending on the country and the method of research used. Nonetheless, international studies reveal that approximately 20% of women and 5—10% of men report being sexually abused as children, while 25 —50% of all children report being physically abused. Additionally, many children are subject to emotional abuse (sometimes referred to as psychological abuse and neglect).
Every year, there are about 31,000 homicide（杀人）deaths in children under 15. This number underestimates the true extent of the problem, as a significant proportion of deaths due to child maltreatment are incorrectly attributed to falls, burns and drowning.
Child maltreatment causes suffering to children and families and can have long-term consequences. Maltreatment causes stress that is associated with disruption in early brain development. Extreme stress can impair（伤害）the development of the nervous and immune（免疫）systems. Consequently, as adults, maltreated children are at increased risk for behavioural, physical and mental health problems. Via（通过）the behavioural and mental health consequences, maltreatment can contribute to heart disease, cancer, suicide and sexually transmitted infections.
Beyond the health consequences of child maltreatment, there is an economic impact, including costs of hospitalization, mental health treatment, child welfare, and longer-term health costs.
A number of risk factors for child maltreatment have been identified. These risk factors are not present in all social and cultural contexts, but provide an overview when one attempts to understand the causes of child maltreatment.
It is important to emphasize that children are the victims and are never to blame for maltreatment. A number of characteristics of an individual child may increase the likelihood of being maltreated, such as being either under four years old or an adolescent, being unwanted, or failing to fulfill the expectations of parents and having special needs’ crying persistently or having abnormal physical features.
36．International studies reveal that
A．many children have been neglected.
B． child maltreatment is most serious in developed countries.
C． 20% of children have been sexually abused.
D．25 —50% of girls have been physically abused.
37．The word “underestimates” in paragraph 3 means
A．exaggerates.
B． points out.
C． assumes.
D．miscalculates.
38．Child maltreatment can bring all the following consequences EXCEPT
A．stress.
B． suicide.
C． heart disease.
D．poor memory.
39．Children are more likely to be maltreated if they
A．cry a lot.
B． are not good-looking.
C． are over 4 years old.
D．are quiet.
40．We can infer from the passage that
A．researchers have collected enough data on child maltreatment.
B． more than 31,000 children under 15 are killed every year.
C． many countries have set up special institutions for maltreated children.
D．some children are also to blame for maltreatment.
第三篇 Sprained（扭伤）Ankle
One of the most common injuries teenagers and adults experience is a sprained ankle. A sprain occurs when the ligaments（韧带）a joint are twisted（扭伤）and possibly torn. Ligaments are bands of fibers that hold the bones of a joint in position. A sprain can occur from a sudden twisting at the joint, or a stretching or tearing of the fibers of the ligaments. The injured area usually swells（肿胀）and becomes black and blue. Stepping off the sidewalk at the wrong angle or having one foot land in a hole while walking or running can leave you rolling on the ground in pain with an ankle on fire! If you cannot walk without experiencing intense pain, you must seek medical help. If the pain is manageable, and you can walk, here are three words to help you remember how to treat yourself:
■ Elevate（抬高）
■ Cool
■ Bandage（打绷带）
As soon as there is injury to that ligament, there will be a certain amount of bleeding under the skin. Once the blood pools around the damaged blood vessels, swelling occurs. The pressure from the swelling results in additional stress and tenderness to the region. In order to reduce the degree of swelling, lie down as soon as possible and keep the ankle elevated so that it is actually higher than your heart. Next, to reduce blood distribution and keep bleeding（流血） to a minimum, apply a cold pack. After 20 minutes, take the pack off, wait half an hour and then reapply. This can be done several times a day for a total of three days.
Never leave a cold pack on for more than 20 minutes at a time. Reducing the temperature in that area for an extended period of time signals the body to increase blood flow to raise the body temperature! Therefore, one accidentally triggers（引起） more blood distribution to the affected area by leaving a cold pack on for too long! Finally, bandage the ankle. Be careful not to wind it too tightly; doing so can restrict blood flow and cause harm to the entire foot.
41．A sprain is caused by
A．ligament fibers of a joint being twisted.
B． blood vessels being hurt in the foot.
C． constantly changing body temperature.
D．elevating one’s ankle.
42．The black-and-blue symptom of a sprain is due to
A．bleeding under the skin.
B． pressing one’s ankle.
C． a tight bandage.
D．applying a cold pack.
43．The word “it” in paragraph 2 (line 5) refers to
A．ankle.
B． injury.
C． pressure.
D．swelling.
44．Once the initial cold pack removed, what is to be done?
A．Begin bandaging the ankle.
B． Wait 30 minutes and then reapply the ice pack for 20 minutes.
C． Keep the ankle in a position lower than your heart.
D．Wait 20 minutes and then reapply the ice pack for 30 minutes.
45．The main idea of the passage is to explain
A．how a sprain occurs.
B． how to bandage an injured foot.
C． how to treat a sprained ankle.
D．how to reduce the temperature of a wounded area.
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