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题型:阅读理解-单选 难度:0.15 引用次数:282 题号:15700782

According to a new study, good friends are actually the next closest thing to family in genes(基因).

U. S. researchers have found that we are more genetically similar to our friends than to any stranger. The study suggested that genes may influence how we choose our friends.

The study looked at the gene information of nearly 2,000 people, who were chosen from a small U.S. town as part of a larger heart study. The study showed that friends share about 0.1 percent more DNA than strangers do.

Besides providing DNA information, participants(参与者)in the study were also asked who their closest friends were. Because all of the participants came from such a small community, it made this group suitable for such studies. It has also led to argument. Friendships in small communities are more probably genetically connected, because such communities usually have fewer kinds of genes.

“I wonder whether the ways used in the study can fully explain the known causes which drive friendships,” said Oxford’s Dr. Rory Bowden.

There was one interesting finding from the study. Some of the genes that friends are most likely to have in common are about smell. “You may really love the smell of coffee. And you’re drawn to a place where other people have been drawn because they love the smell of coffee too,” Fowler explained. “And so that might be the possible place for you to make friends.”

1. What do we know about the study?
A.It was difficult to carry out.B.It was a part of a larger heart study.
C.It collected the gene information of the participants' parents.D.It studied the gene information of the participants.
2. What did the participants do in the study?
A.They told researchers the names of their closest friends.B.They made friends from foreign countries.
C.They changed the ways of making friends.D.They provided DNA information of their friends.
3. What’s Dr. Rory Bowden’s attitude towards the study?
A.He shows no interest in it.B.He doesn’t agree with it.
C.He isn’t sure about it.D.He feels worried about it.
4. What can we learn from the last paragraph?
A.Coffee helps strangers come together.B.Good friends will love the smell of coffee.
C.Genes about smell between friends are different.D.Smell may influence people in making friends.
5. What is the text mainly about?
A.The ways of making different studies.B.A study on the relationship between making friends and genes.
C.A way to choose participants in a study.D.The similar genes between good friends.
【知识点】 朋友 科普知识 说明文

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