Scientists have discovered that living to the age of 100 may have noth,高中三年级,英语试题,缩写与简写考点,好技网

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Scientists have discovered that living to the age of 100 may have nothing to do with the lifestyle you lead and everything to do with the type of genes you have.
For the lucky carriers of “Methuselah” genes， worries over smoking， eating unhealthily and not getting enough exercise may not be as necessary as to those of us without the special gene pattern. The “Methuselah” genes could give extra protection against the diseases of old age such as cancer and heart disease. They could also protect people against the effects of the unhealthy lifestyles that we believe will lead us to an early death， scientists say. However， the genes are very rare.
The genes include ADIPOQ， which is found in about 10 percent of young people but in nearly 30 percent of people living past 100. They also include the CETP and the ApoC3 genes， which are found in 10 percent of young people， but in about 20 percent of people over 100 years old.
Some of those genes were discovered by a research group at the Albert Einstein College of Medicine in New York， led by Professor Nir Barzilai. The team studied the genes of over 500 people over 100 years old， and their children.
The studies show that tiny mutations (变异) in the make-up of some genes can greatly increase a person’s lifespan. Barzilai told a Royal Society conference that the discovery of such genes gave scientists clear targets for developing drugs that could prevent age-related diseases， allow people to live longer and stay healthy.
David Gems， a researcher at University College London， believes that drugs to slow ageing will become widespread.
“If we know which genes control longevity (长寿) then we can... target them with drugs. That makes it possible to slow down ageing，” he told The Times.
“Much of the pain and suffering in the world are caused by ageing. If we can find a way to reduce that， then we are obliged to take it.”
小题1:Which genes could give extra protection against the diseases of old age？ (No more than 3 words) (2 marks)
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小题2: Whom did Barzilai’s team study？ (No more than 10 words) (2 marks)
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小题3: What can greatly increase a person’s lifespan？ (No more than 10 words) (3 marks)
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小题4:What can scientists do if they are aware which genes control longevity？(No more than 6 words) (3 marks)
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缩写与简写

缩写与简写的概念：

用单词首尾字母组成一个新词的英语构词法叫做首尾字母缩略法。这种形式的英语构词生成的新词，读音主要有两种形式，即各字母分别读音；作为一个单词读音。
如：Foreign Language Teaching Agency→FLTA上海外教网
        Testing of English as a Foreign Language→TOEFL托福
        Teach English as a Foreign Language→TEFL
        Teach English as a Second Language→TESL
        Graduate Record Examination→GRE美国研究生入学考试

缩写的几种类型：

1、单词缩写应省略在辅音之后，元音之前：
英文单词缩写一般以辅音结尾，而不以元音结尾。如American省略为Am，而不省略为Ame或Amer，Medicine或Medical缩写为Med，European缩写为Eur等。但Science例外，缩写为Sci，可能是因为元音I之后又是元音E的缘故。缩写刊名每个词首字母必须大写，而不可全部都用大写或小写。
2、压缩字母法：
仅个别单词采用压缩字母方式缩写。
如：Japanese缩写为Jpn而不是Jan
        National应缩写为Natl而不是Nat
经常有读者将Japanese写成Jan是参考文献著录中常见的错误。
如：Japanese Journal of Ophthalmology，应缩写为JpnJOphthalmol，National Cancer Institute Research Report缩写为NatlCancerInstResRep。而Nat是Nature和Natural的缩写，如：NatureMedicine, Naturebiotechnology分别缩写为NatMed, NatBiotechnol。
另外CN是中国的国别代码，期刊缩写刊名中，ChinaChinese不得缩写为CN，而应缩写为Chin.采用压缩写法是为了避免与其他常用缩写混淆。
如：Japanese不能缩写为Jan,可能是Jan是January的固定缩写形式，National缩写为Natl而不缩写为Nat,可能是Nat是Nature和Natural的缩写。
3、学科名称缩写：
刊名中学科名称缩写很常见，因而了解学科名缩写规则非常必要。凡以-ogy结尾的单词，一律将词尾-ogy去掉，如Cardiology缩写为Cariol，Biology缩写为Biol,以-ics结尾的学科名词，缩写时将-ics或连同其前面若干字母略去。如：Physics缩写为Phys。以-try结尾的词，缩写时将-try连同前面若干字母略去。如：chemistry缩写为Chem。其中也包括其他形容词的缩写。
4、刊名中常用词和特殊单词的缩写：
期刊名中有些常用单词可以缩写为一个字母。
如：Journal缩写为J
        Quarterly缩写为Q
        Royal缩写为R
        New缩写为N
        South缩写为S
5、刊名首字母组合：
有些杂志名称缩写采用首字母组合，而且已被固定下来，一般都是国际上有较大影响的期刊，并得到国际上众多索引性检索工具的认同。
如：The Journal of American Medical Association缩写为JAMA， British Medical Journal缩写为BMJ等。
6、国家名称的缩写：
刊名中国家名称的缩写分为两种情况。如国家名称为单个词汇，缩写时常略去词尾或词的后部分若干字母。
如：American缩写为Am
        British缩写为Br
        Chinese缩写为Chin
而国家名称由多个词组组成时，常取每个词的首字母，如United States of America 缩写为USA或US。
7、虚词一律省略：
有许多虚词，如the, of, for, and, on, from, to等，在缩写时均省去。
如：Journal of chemistry缩写为J chem
       Archives of Medical Research缩写为Arch Med Res

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