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A.  Weather is to blame
B.  Divided opinions
C.  Inheriting(遗传) characteristics
D.  Home of the redheads
E.  Greater sensitivity to pain
F.  Gene mutation(基因变异)

 

Britain may be the most red-headed country in the world. About 1 to 2 percent of the world’s population has red hair, but in the UK the numbers are much higher, with 13 percent of Scots, 10 percent of the Irish, and 6 percent of people in England having red hair, according to the BBC.
 
Scientists have tried to explain why some people have red hair for some time and now they may have found an answer: the dull weather in Britain. The human body needs vitamin D from sunshine, but unfortunately people living in Britain do not have enough of it because of its maritime climate. In fact, Britain gets even more cloud than countries in the far north of Europe. In Sweden, for example, the average daily hours of sunshine is 5.4 . In Scotland it is only 3.1 hours.

To deal with this, the DNA of people living in these areas has changed slightly; scientists call this a mutation. Originally, the coloring on our body is a mixture of two kinds of melanin – black melanin is suppressed while only red / yellow melanin is made. The result is red hair, light skin color, freckles and a greater sensitivity to sunlight.

However, what’ s more interesting is that the redhead DNA mutation is recessive, which means it is hidden and can often skip generations without showing. At least 1.6 million Scots carry a redhead gene mutation, and most are unaware that they do. This is why a person who does not have red hair can still produce red-haired children if he or she is a carrier of this special DNA.

The research on red hair, like many areas of science, is contradictory(不一致). In 2002 researchers showed that redheads are more sensitive to pain, and need more anesthetic during surgery than people with blonde or dark hair. However, in 2005 scientists found that a MCRIR mutation gives redheads a higher tolerance for pain. Research into these aspects of red hair genetics continues. Redheads should though be more careful about their exposure to sunlight as they are at an increased risk of contracting skin cancer. If you are a redhead, the advice is not to stay out of the sun, but to be careful about how much exposure you get, and to cover yourself with a high factor sunscreen.

科目 英语   题型 信息匹配   难度 中等
知识点: 信息词选择
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相关试题

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项
Health is the most important thing in the world. Nothing is more important than health. If we take away our money, houses, cars or even our clothes, we can still survive. That is why we always try to eat in a healthy way and exercise regularly.
How can we keep healthy?In order to eat healthily, I usually avoid eating food high in fat, like French fries or cookies, which are junk foods. I eat a lot of vegetables and fresh fruit which are full of vitamins.
Taking exercise every day helps us build a strong body. Regular exercise is an important part of keeping me healthy.
What’s more, I think friends are an important part of one’s health. I always feel better when I am with friends than when I am alone. When I am with my friends, I always laugh. Laughing is also an important part of health. It is good to stay with my friends.
By eating properly and exercising regularly, I can keep my body at a proper weight and keep healthy. By spending time with my friends, I can keep my mind as well as my body happy. These things sound easy to do, but not many people can manage them.

A.On the other hand, doing exercise is very important.
B.There are some people who like staying alone, but they keep healthy.
C.Many studies show that people with a range of social contacts don’t get sick.
D.But if our health was taken away, it is certain that we would surely die.

E.I only eat little meat.
F.I think a strong will is necessary if we want to keep healthy.
G.Some people appear fat because they often eat too much.

阅读下列材料,从所给的六个选项(A、B、C、D、E、F)中,选出符合各小题要求的最佳选项。选项中有一项是多余选项。
A. School or work
B. Make small talks
C. Be fun to be around
D. Be reliable
E. Get out and meet people
F. Join people of common interests
In the world, many people want to make friends just as you do. Follow these steps to meet new people and build strong, lasting friendships with at least some of them. The following paragraphs are some steps.
. You don’t necessarily have to have a lot of common interests with people in order to make friends with them—in fact, some of the most rewarding friendships are between two people who don’t have much in common at all, but if you have something in common with people, it can make it a lot easier to talk to them. Whatever your age and whatever your interests, there is a club or an organization for you.
. Friends can talk about just anything, but you don’t want to get too personal when you first meet someone. Just make good, small talks at first.
. You don’t have to be a superstar to be fun. You do need to be positive and friendly, however, so that people feel good when they’re around you. From the very first conversation you have with someone, you should use body language. Smile frequently, laugh often, and make eye contact. In your words, be confident.
.The steps above are great for making acquaintances (认识的人), but how do acquaintances become lifelong friends? One important feature of a good friend is reliability. When you say you’ll do something, do it. Be someone that people know that they can depend on.
. If you want to make friends, you first need to meet people. No matter where you live, this should be very easy.

下面是一篇应用文及应用场合的信息,请阅读下列应用文和相关信息,并按照要求匹配信息.
A. English Classes Our English teachers do not follow a fixed lesson for each class. Every class is different because every student is different.
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C. Driving Classes Cars become more and more popular. Driving skills are necessary for everyone . We promise to make you drive freely in a month.
D. Children’s Dance Classes Children between the ages of 5 and 15 are taught in our classes. Common dance styles for children include ballet and jazz dance.
E. Piano Classes Piano lessons are for both the beginners and the students who want to review their skills. Learning to play the piano is great for all ages. In the beginning, you will progress rather quickly through our piano lessons.
F. Yoga Classes Yoga is an ancient method of exercise and personal development for the body and mind. With its gentle movement and deep breathing, it’s a good method of relaxation.
阅读下列人物的个人信息,然后匹配适合他(她)们的培训班。
1.Cathy is an editor. She is always very busy. She wants to relax after work and on weekends.
2.Mary believes that cooking is great. Cooking is a creative art. Like painting, dancing or a perfect tennis serve, cooking can be one of the most fulfilling of outlets for creative energy.
3.Amy is fourteen years old. She believes dance is an expression of the body and is a part of all living things in the universe.
4.Tina likes piano concerts. She studies piano a little when she was young. Her dream is to be a pianist.
5.Linda is a middle school student. She studies very hard and does well in every subject except English. She is looking for a training class to improve her English.


需培训者
培训班

Cathy
A. English Classes

Mary
B. Cooking Classes

Amy
C. Driving Classes

Tina
D. Children’s Dance Classes

Linda
E. Piano Classes


F. Yoga Classes

阅读下列应用文及相关信息,并按照要求匹配信息。请在答题卡上将对应题号的相应选项字母涂黑。
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BMW Series 7-2006 (new): Judged the Car of Year” by Wheels Magazine this is the best high-class car on the market. It is big enough for 5 people but is smooth and fast. Has all the latest safety equipment and computer mapping system. Price: $84,900
Porsche 911-2006 (new): This newest Porsche is packed with the latest safety equipment and engine technology. It can hold 2 people and the roof can come down automatically for you to enjoy the fresh air. Has DVD entertainment system and computer mapping system. Price: $72,000
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请阅读下列购车者的信息,然后匹配购车者与拟购买的汽车:
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根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
English, you are so popular
English is the world language, the language of international communication in many areas of life; trade, air and sea transport, tourism and sport. New ideas in science, technology and medicine happen so quickly that it is impossible and very expensive to translate everything into different languages.If you want to study some subject, you need to know professional words and phrases.
English is used as a first language in countries such as Australia, Canada, Ireland, New Zealand, the USA and many of the countries in the Caribbean.It is a way in which people who have different languages communicate with each other. This is especially true in many parts of Africa and India.
Australian, American or Irish English has another pronunciation or stresses, so sometimes you cannot understand, although you can speak English. The USA has no official national language. English is used like a natural language by all Americans, because it is very simple. The American variety is popular between no-native speakers, too.
English is far more worldwide in its distribution(分布) than all other spoken languages. 25% to 33% of the people in the world understand and speak English to some degree. And most of them can use English freely.
In 2001, the 189 member countries in the United Nations were asked what language they wished to use for communication with other countries. More than120 chose English, 40 selected French, and 20 wanted to use Spanish.However, the percentage of Internet users who are not native English speakers is increasing rapidly, especially in Asia.

A.It has become the most useful language.
B.Therefore, most things are published in English.
C.In other countries it is used as a second language.
D.However, English in all these countries is not the same.

E.English is also the language particularly on the Internet.
F.There are at least 165 languages spoken in the United States.
G.Therefore, it is not surprising that all languages change through time.

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