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冲刺2024年中考英语必考题型终极预测(重庆专用)
专题04 阅读理解(说明文)15篇
(2023·重庆渝中·重庆巴蜀中学校考模拟预测)Do you have good friends? Do you sometimes feel so close to them that they are like family to you?
It turns out that this isn’t just an expression. A study has found that you and your friends have more genes (基因) in common than strangers do. Researchers looked at the genes of 1,932 people and compared them in pairs of unrelated friends and strangers. They found that friends have 1% of genes that match.
1% of genes may not sound like much to us, but to geneticists it is a larger number. In fact, this is the same amount of genes you share with your fourth cousins.
So do you happen to become friends with people who share your genes? Not at all. In fact, it is evolution (进化) that brings you together.
People who share certain genes also share skills and have similar likes and dislikes. In ancient times, it was important that people who were alike stayed together. For example, people who had a similar susceptibility (易感性), giving them a better chance to stay alive.
Among all the genes studied, those producing a change in sense of smell were the most similar in friends. This is probably because people who smell things in the same way are more easily drawn to similar environments. For example, people who like the smell of coffee may hang out at cafes more often and as a result are more likely to meet and become friends with each other.
With these findings, researchers have developed an interesting test called the “friendship score”.
It can help tell how likely two people will be friends by studying their genes.
So, here is a question for you: would you like to take this test and know in advance (提前) who your friends are going to be.
1.What does the author mean by saying “It turns out that this isn’t just an expression”?
A.Friends look like our cousin.
B.Friends share 1% of genes with us.
C.Friends feel close to our family.
D.Friends can help us when we feel cold.
2.The writer takes the example of ancient