閱讀理解。
    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 (細胞)to build its parts,(有幾個單詞看不清) 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.
根據(jù)短文內(nèi)容，選擇最佳答案。
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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相關習題

科目：初中英語 來源：山東省煙臺市2012年中考英語試題 題型：050

閱讀理解

　　On June 26, 2000, two scientists, called Francis Collins and Craig Venter, told the world that they could now read the whole “map” of the human body：DNA．DNA is something that everybody has, and it tells the body what to do．DNA is the reason that we look like our mother and father, 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 1860, Gregor Mendel discovered a special reason why we look the same as other people in our family．It is because of small things named “genes” in our body．In 1953, James Watson and Francis Crick made another discovery and found out that those small parts are real messages written in the DNA with a special language．

　　In 1961, Marshall Nirenberg and Johann Matthaei found a message in DNA showing how DNA tells the cell(細胞)to build its parts．Scientists have now found all 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 save more people from several illnesses．

　　Most people hope that this will help make better medicine and help sick people．Other people worry that when people begin to know more words and find out lots of other information, we might use it in a wrong way, just to make people more attractive, or stop sick people from getting jobs．Man would have to meet a lot of trouble if DNA technic wasn't limited in use．

根據(jù)短文內(nèi)容，選擇最佳答案．

(1)

When did we first know why we look like other people in our family?

[　　]

A．

In 1860．

B．

In 1953．

C．

In 1961．

D．

In 2000．

(2)

What does the underlined word “gene” mean?

[　　]

A．

The “map” of DNA．

B．

A special language．

C．

Small parts of DNA．

D．

DNA．

(3)

What did the two scientists first discover in 1961?

[　　]

A．

The “map” of DNA．

B．

A new illness．

C．

The language of DNA．

D．

A message of DNA．

(4)

What can we do if we understand some “words” of the language inside the body?

[　　]

A．

Make people get new jobs．

B．

Make medicine for illnesses．

C．

Make maps of human．

D．

Make people less attractive．

(5)

What do people think about this work?

[　　]

A．

It can cause good or bad results．

B．

It can cause only good results．

C．

It can cause good results but won't work．

D．

It can cause only bad results．

查看答案和解析>>

科目：初中英語 來源：江蘇省江陰市華士片2012屆九年級下學期期中檢測英語試題 題型：050

閱讀理解

　　You are probably familiar with the saying：An apple a day keeps the doctor away．A recent research carried out by the Chinese University of Hong Kong may change the saying：

　　An apple a day may keep aging away．

　　The research chose fruit flies(果蠅), as they share many genes(基因)with humans．The fruit flies were either fed normally or had an apple extract(濃縮物)added to their diet．

　　It turned out that those fruit flies that were given apple extract lived about 55 days－five days longer than the flies that were normally fed．The research group also found it easier for the flies to walk，climb and move about as they aged．

　　According to the result, the researchers believed that the antioxidants(抗氧化劑)in the apple extract helped clean up dangerous chemicals(化學物質(zhì))that cause illnesses，as well as aging．

　　In another study，researchers examined diets of thousands of women．They discovered that those who regularly ate apples were 20 percent less likely to suffer heart illnesses and stroke．

　　The apples' genetic code(遺傳密碼)was discovered recently．It allows scientists to develop nicer and healthier fruits．Researchers are already using the information to grow a kind of apples full of antioxidants that can keep eyes and joints healthy and protect humans against heart illnesses and cancer．

　　Apples that kill the desire(欲望)to eat could also be produced, with the first“extra-healthy''apples on supermarket shelves within just four or five years．

　　The team that keeps studying apple DNA includes 100 scientists from five countries．Their research also suggests that around 65 million years ago, when dinosaurs began to die off the plant，which would finally become today's apple tree, experienced a great genetic change．The number of many of its genes doubled．The extra genes allowed the apple to get used to worse conditions and go through a different development from peaches，strawberries and other related fruits．

(1)

Why were fruit flies used for the research?

[　　]

A．

Because they have a similar diet to humans．

B．

Because they have a history as long as apples．

C．

Because they share a lot of genes with humans．

D．

Because they feed on nothing but apple extract．

(2)

What result did the researchers find out?

[　　]

A．

Apples produce chemicals that can change human genes．

B．

Apples have antioxidants that kill chemicals that cause aging．

C．

Apples are rich in vitamins that are needed in humans'bodies．

D．

Apples produce chemicals that make apples taste more delicious．

(3)

What happened to apples around 65 million years ago according to the research?

[　　]

A．

Their genes stopped their development as the environment got worse．

B．

Their genes became twice in number but they finally died off like dinosaurs．

C．

They experienced a great genetic change making them used to worse conditions．

D．

They went through a similar development to peaches, strawberries and other related fruits．

(4)

What can we infer(推斷)from the passage?

[　　]

A．

Eating apples may bring us more advantages than we might believe before．

B．

People who have the habit of eating apples don't need to see a doctor．

C．

Apples that kill the desire to eat are already available in supermarkets now．

D．

People will eat apples instead of peaches and strawberries from now on．

查看答案和解析>>

科目：初中英語 來源：山東省中考真題 題型：閱讀理解

閱讀理解
                        
       On June 26, 2000, two scientists, called Francis Collins and Craig Venter, told the world that they
could now read the whole "map" of the human body: DNA. DNA is something that everybody has, and
it tells the body what to do. DNA is the reason that we look like our mother and father, 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 1860, Gregor Mendel
discovered a special reason why we look the same as other people in our family. It is because of small
things named "genes" in our body. In 1953, James Watson and Francis Crick made another discovery
and found out that those small parts are real messages written in the DNA with a special language.
       In 1961, Marshall Nirenberg and Johann Matthaei found a message in DNA showing how DNA
tells the cell (細胞) to build its parts. Scientists have now found all 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
save more people from several illnesses.
       Most people hope that this will help make better medicine and help sick people. Other people worry
that when people begin to know more words and find out lots of other information, we might use it in a
wrong way, just to make people more attractive, or stop sick people from getting jobs. Man would have
to meet a lot of trouble if DNA technic wasn’t limited in use.
根據(jù)短文內(nèi)容，選擇最佳答案。
1. When did we first know why we look like other people in our family?  
A. In 1860.          
B. In 1953.            
C. In 1961.            
D. In 2000.
2. What does the underlined word "gene" mean?
A. The "map" of DNA.                      
B. A special language.
C. Small parts of DNA.                      
D. DNA.
3. What did the two scientists first discover in 1961?
A. The "map" of DNA.                    
B. A new illness.  
C. The language of DNA.                    
D. A message of DNA.
4. What can we do if we understand some "words" of the language inside the body?
A. Make people get new jobs.              
B. Make medicine for illnesses.
C. Make maps of human.                
D. Make people less attractive.
5. What do people think about this work?
A. It can cause good or bad resutls.            
B. It can cause only good results.  
C. It can cause good results but won’t work.      
D. It can cause only bad results.

查看答案和解析>>

科目：初中英語 來源：江蘇中考真題 題型：閱讀理解

閱讀理解。
     You are probably familiar with the saying: An apple a day keeps the doctor away. A recent research
carried out by the Chinese University of Hong Kong may change the saying: An apple a day may keep aging
away.
     The research chose fruit flies (果蠅), as they share many genes (基因) with humans. The fruit flies were
either fed normally or had an apple extract (濃縮物) added to their diet.
     It turned out that those fruit flies that were given apple extract lived about 55 days - five days longer than
the flies that were normally fed. The research group also found it easier for the flies to walk, climb and move
about as they aged.
     According to the result, the researchers believed that the antioxidants (抗氧化劑) in the apple extract
helped clean up dangerous chemicals (化學物質(zhì)) that cause illnesses, as well as aging.
     In another study, researchers examined diets of thousands of women. They discovered that those who
regularly ate apples were 20 percent less likely to suffer heart illnesses and stroke.
     The apples' genetic code (欲望) was discovered recently. It allows scientists to develop nicer and healthier
fruits. Researchers are already using the information to grow a kind of apples full of antioxidants that can keep
eyes and joints healthy and protect humans against heart illnesses and cancer.
     Apples that kill the desire (欲望) to eat could also be produced, with the first "extra-healthy" apples on
supermarket shelves within just four or five years.
     The team that keeps studying apple DNA includes 100 scientists from five countries. Their research also
suggests that around 65 million years ago, when dinosaurs began to die off, the plant, which would finally
become today's apple tree, experienced a great genetic change. The number of many of its genes doubled.
The extra genes allowed the apple to get used to worse conditions and go through a different development
from peaches, strawberries and other related fruits.
1. Why were fruit flies used for the research?
A. Because they have a similar diet to humans.
B. Because they have a history as long as apples.
C. Because they share a lot of genes with humans.
D. Because they feed on nothing but apple extract.
2. What result did the researchers find out?
A. Apples produce chemicals that can change human genes.
B. Apples have antioxidants that kill chemicals that cause aging.
C. Apples are rich in vitamins that are needed in humans' bodies.
D. Apples produce chemicals that make apples taste more delicious.
3. What happened to apples around 65 million years ago according to the research?
A. Their genes stopped their development as the environment got worse.
B. Their genes became twice in number but they finally died off like dinosaurs.
C. They experienced a great genetic change making them used to worse conditions.
D. They went through a similar development to peaches, strawberries and other related fruits.
4. What can we infer (推斷) from the passage?
A. Eating apples may bring us more advantages than we might believe before.
B. People who have the habit of eating apples don't need to see a doctor.
C. Apples that kill the desire to eat are already available in supermarkets now.
D. People will eat apples instead of peaches and strawberries from now on.

查看答案和解析>>

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