When we donate blood, a small amount is usually taken in advance for at least ABO and Ph systems typing. If you are O+, the O is your ABO type and the + is your Rh type. It is possible to be A, B, AB, or O as well as Rh + or Rh-.
The ABO system was discovered by Karl Landsteiner in the early 1900s. He was awarded the Nobel Prize for his achievements. There are four basic types of blood in the ABO system: A, B, AB and O. Everybody is born with one of these four types of blood. We get blood type, just like hair color and height from parents. Because of the substances(物质) contained in each type, the four groups must be transfused carefully, If two different blood types are mixed together, it may put a person into an extremely dangerous situation. Basically, A and B cannot be mixed. A and B cannot receive AB, but AB may receive A or B. In an emergency, type O blood can be given because it is most likely to be accepted by all blood types, so it is often called the universal donor. However, there is still a risk. For the opposite reason, AB is sometimes called the universal receiver. However, because there can be so many reactions in the blood bank of the hospital.
There is a relationship between your blood type and your nationality. Among the Europeans, about 45 percent have type O while 42 percent have type A. The rarest is type AB. Other races have different percentage. For example, some American Indian groups have nearly 100 percent type O out of 100 donors in the world…
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84 donors are Rh+ |
16 donors are Rh- |
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38 are O+ |
7 are O- |
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34 are A+ |
6 are A- |
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9 are B+ |
2 are B- |
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3 are AB+ |
1 is AB- |
1. Which of the following shown the correct relationships in blood transfusions?
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A B
A B
A B
A B
AB O
AB O
AB O
AB O
A B C D
2. The underlined word “transfuse” most probably means ________.
A. to put the blood into a container
B. to move the blood from one place to another K^S*5U.C#O
C. to put the blood of one person into the body of another
D. to give power to another person
3. The writer suggests that the third most common blood type among the Europeans is ______.
A. B B. A C. AB D. O
4 The text mainly tells us ______.
A. about the basic types of human blood
B. what kind of blood is the most common
C. about Karl Landsteiner who won the Nobel Prize
D. the relationship between blood type and nationality
第二节 书面表达(满分25分)
最近学校学生会组织调查了同学们对“探索太空”这一话题的看法。现请你根据以下表格中同学们对此问题的看法及你自己的观点用英语写一篇短文,发表在校报上
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支持 (多数学生) |
1. 探索太空是中国人长期持有的梦想 2. 有助于未来中国参与国际竞争 3. 中国科学技术的发展使探索太空成为了可能 |
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反对 (部分学生) |
探索太空需要大量的金钱,中国负担不起 中国是一个发展中国家,应努力解决其它社会问题 |
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你的观点…… |
注意: 1.不要逐句翻译,总词数120左右,开头已写好,不计入词数;
2.要求字迹工整,卷面整洁。
The Student’s Union of our school has done a survey on Space Exploration recently. The students have different opinions about this issue.
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