In 1931, it was discovered that some unknown substance present only in certain foods was necessary for good health. This substance was what is now called “Vitamin A”.

　　Vitamin A's biggest job is to keep the eyes going. Without it, people and animals get “night blindness” and eye problems. Lack of Vitamin A for a long time can even cause total blindness, particularly among children. This had a chance to be tested in Denmark during World Was I. Because of food shortage, many children had to eat man-made butter and skim milk（脫脂奶）, which contains no Vitamin A. Soon, they developed eye diseases. It was after they were given real butter and whole milk that they had no eye problems.

　　After Vitamin A was discovered, it took more than thirty years of experiments for scientists to be able to get a small amount of pure Vitamin A. Vitamin A is manufactured and is used successfully to treat a number of diseases. You can easily get enough Vitamin A by eating a variety of food. Good sources of Vitamin A are liver（肝臟） from some animals and dairy products such as milk and cream. Not only many vegetables contain carotene（胡蘿卜素）, from which your liver can make its own Vitamin A, some fruits also provide carotene which helps your liver to supply Vitamin A. As long as you are getting Vitamin A from food you won't need to take any extra in the form of liquid or pills.

(1)According to the passage, if Vitamin A is not provided enough, which of the following are likely to be affected most se riously?

[　　]

A．Adults.
B．Animals
C．Children.
D．Plants.

(2) Vitamin A is a very. important substance mainly because it _______.

[　　]

A．is hard to made

B．helps to keep one's eyes healthy

C．can make butter more delicious

D．can not be produced in large quantity

(3) What made the children in Denmark get eye diseases during World War I?

[　　]

A．The war they experienced.

B．Their poor housing conditions.

C．The experiments on food.

D．The lack of Vitamin A in their food.

(4) According to the text, the following are all good sources of Vitamin A except _______.

[　　]

A．a(chǎn)nimal liver
B．flour
C．vegetables
D．milk

(5) Which of the following could be the best title of the passage?

[　　]

A．The Discovery of Vitamin A.
B．Some Unknown Substance.
C．Sources for Vitamin A.
D．Vitamin A.
答案：C;B;D;B;D
解析：
1. C  由第二段的“Lack of Vitamin A for a long time can even cause total blindness, particularly among children.”

2. B  由第二段中的第一句可知。

3. D  由第二段可得知。

4. B  由第三自然段，可知維生素A來自動物的肝臟、奶制品、蔬菜和水果，未提到糧食，利用排除法，故選B項(xiàng)。

5.D  該題為主旨大意題。短文從頭到尾都是談Vitamin A。因此D為最佳選項(xiàng)。


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科目：高中英語 來源：2004全國各省市高考模擬試題匯編(天利38套)·英語 題型：050

閱讀理解

閱讀下列短文，從每題所給的四個選項(xiàng)(A、B、C和D)中，選出最佳選項(xiàng)。

　　Thomas Alva Edison lit up the world with his invention of the electric light. Without him, the world might still be a dark place. However, the electric light was not his only invention. He also invented the phonograph, the motion picture camera, and over 1,200 other things. About every two weeks he created something new.

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[　　]

A．he became a telegraph operator, a newsboy, and then got his fist patent

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[　　]

A．the vote recorder

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[　　]

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[　　]

A．

B．

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D．

(2)

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[　　]

A．

make creative fashion designs

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work in a diplomatic service

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[　　]

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[　　]

A．

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B．

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Face adversity(逆境)with a smile

　　I told my friend Graham that I often cycle the two miles from my house to the town centre but unfortunately there is a big hill on the route．He 　　1　　 , "You mean fortunately．" He explained that I should be glad of the 　　2　　 exercise that the hill provided．

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A．

reacted

B．

replied

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criticized

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(2)
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A．

abundant

B．

proper

C．

extra

D．

necessary

(3)
[　　]

A．

attitude

B．

access

C．

entrance

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(4)
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A．

climb

B．

confuse

C．

comment

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complain

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A．

put on weight

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gain weight

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lose weight

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take my weight

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[　　]

A．

Gradually

B．

Finally

C．

Rarely

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Approximately

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A．

satisfaction

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devotion

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decoration

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caution

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A．

understood

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clarified

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defeated

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overcome

(9)
[　　]

A．

tough

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difficult

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reasonable

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[　　]

A．

gain

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acquire

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founded

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Face adversity(逆境)with a smile

　　I told my friend Graham that I often cycle the two miles from my house to the town centre but unfortunately there is a big hill on the route．He 　　1　　, “You mean fortunately．”He explained that I should be glad of the 　　2　　 exercise that the hill provided．

　　My 　　3　　 to the hill has now changed．I used to 　　4　　 as I approached it but now I tell myself the following．This hill will exercise my heart and lungs．It will help me to 　　5　　 and get fit．It will mean that I live longer．This hill is my friend．　　6　　 , I have a smile of 　　7　　 as I reach the top of the hill．

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　　Helen Keller was the first deaf and blind person to 　　10　　 an University degree．She wrote, “Character cannot be 　　11　　 in ease and quiet．Only through 　　12　　 of trial and suffering can the soul be strengthened, vision cleared, ambition inspired and success achieved．”

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　　Douglas Bader was 21 when in 1931 he had both legs amputated(截肢)following a flying accident．He was 　　15　　 to fly again and went on to become one of the leading flying aces．He was a/an 　　16　　 to others during the war．He said, “Don't listen to anyone who tells you that you can't do this or that．That's nonsense．　　17　　 your mind, you'll never 　　18　　 crutches(拐杖)or a stick, then have a go at everything．Go to school, join in all the games you can．Go 　　19　　 you want to．But never, never let them 　　20　　 you that things are too difficult or impossible．”

(1)
[　　]

A．

reacted

B．

criticized

C．

replied

D．

reflected

(2)
[　　]

A．

extra

B．

proper

C．

abundant

D．

necessary

(3)
[　　]

A．

access

B．

entrance

C．

interest

D．

attitude

(4)
[　　]

A．

climb

B．

confuse

C．

complain

D．

comment

(5)
[　　]

A．

put on weight

B．

lose weight

C．

gain weight

D．

take my weight

(6)
[　　]

A．

Finally

B．

Gradually

C．

Rarely

D．

Approximately

(7)
[　　]

A．

satisfaction

B．

devotion

C．

decoration

D．

caution

(8)
[　　]

A．

understood

B．

clarified

C．

overcome

D．

defeated

(9)
[　　]

A．

tough

B．

easy

C．

difficult

D．

reasonable

(10)
[　　]

A．

learn

B．

reach

C．

admire

D．

gain

(11)
[　　]

A．

developed

B．

founded

C．

produced

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constructed

(12)
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A．

happiness

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difficulties

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experiences

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pressures

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[　　]

A．

emphasis

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conflicts

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factors

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powers

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[　　]

A．

As

B．

While

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Because

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devoted

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commanded

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[　　]

A．

inspiration

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appreciation

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qualification

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destination

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[　　]

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Open up

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Come into

(18)
[　　]

A．

use

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reject

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deliver

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abandon

(19)
[　　]

A．

everywhere

B．

nowhere

C．

anywhere

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somewhere

(20)
[　　]

A．

advised

B．

attempt

C．

request

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persuade

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