31．The flood as a result of the heavy rain. A．came about B．brought about C．broke down D．set——青夏教育精英家教网—

阅读理解

　　The yellow River is the second longest river in China． It rises in the mountains on Qinghai and flows right across China to the Yellow Sea． Both the river and the sea are called Yellow because of the yellow mud which the river carries down from the desert into the sea, making the water a yellow color, When the river reaches the flat plain and flows less fast, it drops much of its mud, filling up the riverbed and forcing the water to overflow its banks and flood the countryside for miles. These terrible floods wash away crops and destroy whole villages. They have brought death and famine(饥饿)to so many people that the river is sometimes called “China’s sorrow”. In order to prevent the floods, they have built banks of earth, called dykes(河堤)along both sides. As the river brought down more mud and broke through the dykes, people mended them and built them higher, until now in some parts the river flows as much as twenty feet above, in spite of the danger of floods, farming had been carried on for centuries.

1．The Yellow River is ________

[　　]

A．the longest river that flows to the Yellow sea

B．the longest river in China

C．The longest river that flows to the East China Sea．

D．The second longest river that flows to the East China Sea．

2．Where does the yellow mud come from?

[　　]

A．From the desert

B．From the riverbed

C．From the sea

D．From the riverbanks

3．The flood comes when ________

[　　]

A．the river flows fast

B．the river overflows its banks

C．the river reaches

D．the river drops its yellow mud

4．Which of the following is NOT true?

[　　]

A．The terrible floods used to destroy many villages.

B．Many Chinese people suffered a lot from the river in history.

C．Farming cannot be carried on till now.

D．Floods often brought famine and death to the people.

5．To prevent the floods, people today ________

[　　]

A．have built higher banks all along the river

B．have moved away the mud on the river-red

C．have built dams and waterworks

D．have built new buildings along the river banks

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Anna lived on the side of a valley．One summer, there was a very big 　 , and a lot of houses down below Anna＇s were washed away．Anna＇s house was 　 enough to escape the flood, so when the water had and the other houses were 　 there with no roof and no walls and all covered with mud（泥）, her house was just all right．

Her house was quite small, her husband was dead, and she had four children, 　 Anna took in one of the families that had lost 　 in the flood and she 　 her home with them until it was 　　 for them to rebuild their house．

Anna＇s friends were 　 when they saw Anna do this．They could not understand why Anna wanted to give so much more work and trouble when she already had quite a few children to 　．

“Well,” Anna 　 her friends, “at the end of the First World War, a woman in the town where I then lived found herself very 　 , because her husband had been killed in the 　　 and she had a lot of children I have now．The day before Christmas, this woman said to her children, ‘We won’t be able to have much for Christmas this year, so I’m going to 　 only one present to all of us．Now I’ll go and get it．’ She came back with a 　 who was even poorer than they, and who had no parents．‘Here’s our 　 ,she said to her children．

The children were 　 and happy to get such a present．They 　 the little girl, and she grew up as their sister．Such was that Christmas present．”

1.A．accident B．flood C．fire D．earthquake

2.A．below B．big C．high D．small

3.A．reduced B．come C．disappeared D．appeared

4.A．rising B．standing C．flowing D．falling

5.A．so B．for C．but D．since

6.A．nothing B．anything C．something D．everything

7.A．gave B．shared C．found D．built

8.A．necessary B．important C．obvious D．possible

9.A．worried B．disappointed C．satisfied D．puzzled

10.A．them B．him C．herself D．us

11.A．supply B．grow C．support D．educate

12.A．asked for B．talked with C．turned up D．explained to

13.A．sad B．rich C．poor D．happy

14.A．storm B．rain C．war D．flood

15.A．because B．which C．that D．as

16.A．get B．make C．send D．buy

17.A．boy B．student C．teacher D．girl

18.A．child B．daughter C．present D．sister

19.A．angry B．lovely C．excited D．sorry

20.A．disliked B．gained C．led D．welcomed

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The soldiers tried their best and did what they could _______ against the flood.

A. fight 　 B. to fight?

C. fighting 　 D. fought?

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The soldiers tried their best and did what they could__________against the flood.?

A.fight　　　　　 B.to fight　　　 C.fighting　 D.fought

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阅读理解

　　Every year farmers in areas which often suffer flood in Southeast Asia lose millions of tons of rice to high water that kills their crops．That large amount of waste may soon be a thing of the past：SUBIA, a gene discovered by researchers which the International Rice Research Insitule(IRRI)and the University of California, allows rice palnts carrying the gene to live completely under water for two weeks．

　　Flood–resistant(抗水浸)rice turned up among the 110,000 types of seed stored at the institute．It produced disappointingly low yields(产量), but scientistis were able to transfer the gene into more bountiful varieties．These have shown promising results in tests by growers in India and Bangladesh over the past two years．

　　This rice success story would not have been possible without the treasure of genetic diversity hidden in the IRRI's vault(underground room)．As the world faces new agricultural challenge – charging climate, bugs and diseases that have developed resistance(抵抗力)to old defenses–such genetic resources are likely to become increasingly valuable．Fortunately, the IRRI is one of more than 1,000 organizations around the world working to protect crop genes．Most plant species grown for food have an associated bank that stores thousands of samples; seeds of landraces, wild relatives, and varieties that are rare, old, or adapted to very specific envionments．The banks ensure that it will be possible to develop new varieties in the future．

　　The need for these botanical libraries has its roots in modern agricultural practices．According to the U．N．Food and Agriculture Organization, 75 percent of plant diversity has been lost over the last century．Of more than 30,000 eatable species, humans grow just 200 for food; 60 percent of plant calories in our diet comes from wheat, rice, and corn．

(1)

Accordint to the second paragraph, what can we learn about the flood – resistant rice?
[　　]
A．	It produces a small amount of rice．
B．	Scientists have developed many more varieties of it．
C．	Sientists have managed to improve its output．
D．	It can produce more rice than the other 110,000 types at the institute．

(2)

From the passage we can infer that ________．
[　　]
A．	the newly – discovered gene will bring hope to the farmers in the areas often suffering flood
B．	scientists will not be able to change the fact that rice plants carrying the gene produce low yields
C．	the tests by growers in India and Bangladesh were hopeless
D．	110,000 types of seed stored at the Institute are flood-resistant

(3)

What's the main idea of the third paragraph?
[　　]
A．	The world faces new agricultural challenges．
B．	Such genetic resources are likely to become valuable．
C．	Scientists set up banks to store thousands of seed samples．
D．	We should owe the rice success story to the seed banks．

(4)

As to the botanical libraries, the writer thinks they are ________．
[　　]
A．	useless
B．	unnecessary
C．	needful
D．	needless

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