Question

【题目】阅读理解。

Climate change has caused a rise in sea levels.This has increased an amount of salt in fresh water used on farms near the sea.As a result farmers are unable to use fields close to the sea.Scientists call this process “salinization(盐碱化)”,which is reducing the world’s farm lands by 1 to 2 percent every year.

But a farmer in Holland,Marc Van Rijsselberghe started with an experiment,using a mixture of sea and fresh water to grow healthy and tasty vegetables.He put several kinds of plants in the fields.Mr.Van Rijsselberghe worked on the project with scientists from the Free University of Amsterdam.He divided a farm into eight areas.Every area was watered by different water.“We put in a lot of plants in the fields and then we put them in fresh water and in sea water with all the varieties(变化) between them,and then we saw which variety was surviving and which variety was dying.”A computer program created water with eight levels of salinity(盐度).Computerized measuring devices(测量仪器)controlled the water levels and the levels of salinity.

Mr.Van Rijsselberghe said he was able to harvest vegetables from most of the eight test areas.He said the vegetables were smaller than those grown in fresh water.But he said they had more sugar and salt,so they tasted better.

The farmer grew carrots,potatoes,cabbage and onions.He found that potatoes grew better than the other vegetables in the combination of sea and fresh water.Mr.Van Rijsselberghe said four kinds of these potatoes were recently sent to Pakistan,where thousands of hectares(公顷)of land have been damaged by salinization.Farmers in Pakistan will test the Dutch potatoes to see if they can be grown in those fields.

【1】What does the passage mainly talk about?

A.Farms near the sea are becoming less and less in Holland.

B.The damage salinization brings to the farms in Holland.

C.Farmers improve the skills to make full use of fresh water.

D.A Dutch farmer uses a mixture of sea and fresh water to grow vegetables.

【2】What does the underlined word “them” in Paragraph 2 refer to?

A.The plant.

B.Fresh water.

C.Sea water.

D.Fresh and sea water.

【3】It can be known from the passage that .

A.salinization brings great benefits to farmers in Holland

B.the farmer did the experiment using high technology

C.vegetables grew better in sea water than in fresh water in the experiment

D.the farmer achieved success without anyone else helping him in the experiment

【4】The vegetables watered by a mixture of sea and fresh water .

A.had less sugar than those grown in fresh water

B.were much bigger than those grown in fresh water

C.had a better taste than those grown in fresh water

D.had more beautiful colors than those grown in fresh water

Answer 1

【答案】

【1】D

【2】D

【3】B

【4】C

【解析】

试题解析:

【1】主旨大意题。根据第二段中第一句“But a farmer in Holland,...using a mixture of sea and fresh water to grow...”可知D项正确。

【2】根据第二段上文的“with all the varieties”及下文的“which variety was surviving and which variety was dying”,them指代淡水和海水。

【3】根据第二段最后两句“A computer program created water with eight levels of salinity.Computerized measuring devices controlled the water levels and the levels of salinity”可知B项正确。

【4】根据第三段中“But he said they had more sugar and salt,so they tasted better.”可知C项正确。