阅读理解。 DNA is the whole "map" of the human body. It is something that all humans have, and it tells the body what to do. DNA is the reason that we look l-初中英语-n多题

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阅读理解。

    DNA is the whole "map" of the human body. It is something that all humans have, and it tells the body
what to do. DNA is the reason that we look like our parents, because we get some of their DNA to make our own.
    People have been trying to understand the human body for a long time. In I860, Mr Mendel discovered why we look the same as other people in our family. It is because of small things called "genes"(基因) in
our body. In 1953, two scientists, Watson and Crick, found out that those small parts are really messages. They're written in the DNA with a special language.
    In 1961, another two scientists found the first "word" that they could understand in that language. It
shows how DNA tells the cell (细胞)to build its parts,(有几个单词看不清) the words in the DNA map, but we still do not understand what they all do. By understanding what just one "word" means, we can help to save people from several illnesses. So the more we understand, the more doctors will be able to do.
    Most people hope that this will help to make better medicine and help sick people: Other people worry that when wc Icam more "words" and find out more information, we will use it in the wrong way, just to
make people more attractive (有吸引力的), or stop sick people getting jobs.

根据短文内容，选择最佳答案。

1.When did Mr Mendel discover why we look the same as other people in our family?

A. In 2000.
B. In 1961.
C. In 1953.
D. In 1860.

2.What did the two scientists find in 1961? They found ______.

A. all the words in the DNA map
B. small things called "genes" in our body
C. the first "word" they could understand in that language
D. those small parts arc written in the DNA with a special language

3.How can we help sick people if we understand more "words" in the DNA map?

A. Make better medicine.
B. Make them get jobs.
C. Make maps for them.
D. Make them attractive.

4.Which one is not true according to the article?

A. Wc look like our parents because of "genes" in our body.
B. We have understood what all the words in the DNA map do.
C. DNA is the whole "map" of the human body.
D. DNA tells the cell to build its parts.

5.What do people think about this research about DNA?

A. It can be only bad.
B. It can be only good.
C. It can be good but won't work.
D. It can be good and bad

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