“The fact that subtle(微妙的)differences in DAF-16 between species seem to have such an impact on aging and health is very interesting and may explain how differences in lifespan and related traits have arisen during evolution,”May said.
5.In which section may the text appear in a newspaper?
A.Education.B.Science.
C.Entertainment.
D.Culture.
6.What can we know from the third paragraph?
A.New ways have been found to affect aging.
B.Babies in the rich world will all live longer.
C.Present social care systems are poorly managed.
D.Aging populations are causing more challenges.
7.From the text we know that DAF-16 ______.
A.is a gene that is only found in worms
B.can make people live longer
C.has an effect on aging and immunity
D.has been quite familiar to scientists
8.What can be the best title of the passage?
A.Scientists Find Gene Linked to Aging
B.Population Aging Faster than Expected
C.How to Make People Live Longer
D.Gene Determines How Long We Live
二、任务型读写
阅读下面短文,根据所读内容在表格中的空白处填入恰当的单词。注意:每个空格只填一个单词。
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