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。选项中的两项为多余选项。 Nobodyha...
问题详情:
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。选项中的两项为多余选项。
Nobody has ever succeeded in their attempt to stay young and live a very long life.__1__ But is this really true?
Dr Aubrey de Grey thinks that we can stop people getting old and that in about 20 years, people will be able to live to be 1,000 years old!__2__
In Dr Grey’s opinion, getting old is a problem that can be solved.__3__ If we can cure this disease, we can stop the aging process.We can also make people have young bodies again.
Dr Grey believes that science will soon be able to stop the causes of aging so that a person’s body won’t get weak and won’t suffer from the typical diseases of old age.
Dr Grey compares the human body to a house.As the house gets older, some things must be repaired.Broken hearts must be replaced.The same thing can happen with the human body, he thinks.We can use stem cell technology to grow new, healthy tissue to replace the old , damaged one.We can also try to remove disease-causing molecules in our bodies.__4__.
__5__However, they admit that Dr Grey’s ideas have not yet been proved wrong.Dr Grey is convinced that his opinions are realistic and that his research is very important.If aging is a disease, he says, we must try to cure it.
A.At the same time, people’s bodies will stay young and healthy.
B.Scientists succeed in solving the problem of aging long ago.
C.A lot of scientists think his ideas not realistic.
D.When our bodies change as we get older, this is like a disease.
E.New deadly diseases may also be cured, if we can stop the aging process.
F.It seems that everybody must get old and die.
G.In this way, a person could easily live to be 1,000 years old.
【回答】
FADGC
知识点:阅读理解
题型:未分类
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问题详情:已知铁的一种氧化物,其中含氧元素的质量分数为30%,则这种铁的氧化物的化学式为()A.FeO B.Fe2O3C.Fe3O4 D.无法判断【回答】B知识点:金属的化学*质题型:选择题...
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问题详情:简答题(选做一题)(5分)20.阅读下面《红楼梦》选段,依据原著故事情节,回答问题。一句话未了,忽见一个老婆子忙忙走来,说道:“这是那里说起!金钏儿姑娘好好的投井死了!”金钏儿因何投井自尽?她死后,王夫人和宝钗对此作何反应?请简述。21.阅读下面《欧也妮·葛朗台》选段,...
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问题详情:如图中,A、B、C、D、E是单质,G、H、I、F是B、C、D、E分别和A形成的二元化合物,已知:①反应C+G B+H能放出大量的热,G是红综*固体粉末;②I是一种常见的温室气体,它和E可以发生反应:2E+I2F+D,F中的E元素的质量分数为60%.回答问题: ⑴①中反应的化学方程式为 ...
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