题目内容

阅读短文,完成下小题。

  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.

答案:1.D;2.C;3.A;4.B;5.D;
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阅读短文,然后按要求完成下小题。

  Mary Allen was my best friend like the sister I never had.We did everything together, piano lessons, movies, swimming, horse riding.(A)When I was 13, I moved to another city with my family.Mary and I often wrote to each other, and sometimes we saw each other-like my wedding and Mary's.Soon we were busy(B)________ children and moving to new homes, and we wrote less often.

  One day a card that I sent to Mary came back with the words“Address Unknown”.I had no idea to find Mary.

  Over the years, I thought of Mary often.I wanted to share stories of my children and then grandchildren.And I needed to share my(C)sorrow when my brother and then mother died.

  There was an empty place in my heart that only a friend like Mary could fill.One day I was reading the newspaper when I noticed a photo of a young woman.She looked like Mary and her last name was White-Mary's married name.“There must be thousands of Whites.”I thought, but I wrote to her anyway.

  (D)她收到我的信就打来电话.“Mrs.Green!”she said excitedly.“Mary Allen White is my mother.”Minutes later I heard a voice that I recognized(E)at once, even after 40 years.We laughed and cried.

  The empty place in my heart is filled and there's one thing that Mary and I know.We won't lose each other again!

1.将画线部分(A)改写为:________ ________ ________ ________ ________, I moved to another city with my family.

2.在画线部分(B)处填入一个适当的词:________

3.将画线部分(C)译成汉语:__________________

4.将画线部分(D)译成英语:__________________

5.写出画线部分(E)的同义短语:______________

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