【题目】Organic food has no nutritional or health benefits over ordinary food, according to a major study.

Researchers from the London School of Hygiene & Tropical Medicine said consumers were paying higher prices for organic food because of its imagined health benefits，creating a global organic market worth an estimated $48 billion in 2007.

A systematic review of 162 scientific papers published in the scientific literature over the last 50 years, however, found there was no significant difference.

"A small number of differences in nutrient content were found to exist between organically and conventionally (通常)produced foodstuffs， but these have nothing to do with public health，" said Alan Dangour， one of the report's authors.

"Our review indicates that there is currently no evidence to support the selection of organically over conventionally produced foods on the basis of nutritional superiority."

The results of research， which was commissioned by the British government's Food Standards Agency, were published in the American Journal of Clinical Nutrition.

Sales of organic food have fallen in some markets，including Britain，as a slowdown in economic growth has led consumers to cut back on purchases.

The Soil Association said that growth in sales of organic products in Britain slowed to just 1.7percent, well below the average annual growth rate of 26 percent over the last decade.

【1】 Why does organic food cost more than conventionally produced food?

A. Because people think they are much healthier.

B. Because they are more delicious.

C. Because people prefer organic food.

D. Because they sell better.

【2】 According to the study, organic food is ______ than conventionally produced food.

A. much healthier B. better

C. no healthier D. less healthier

【3】 Sales of organic food have fallen because of ______ .

A. high price B. economic decline

C. bad service D. poor quality

【4】 Where can you find this passage in a newspaper?

A. Economy. B. Science.

C. Food & Nutrition. D. Fashion.

【题目】Mrs. White showed her students some old maps __________ from the library.

A. to borrow B. to be borrowed

C. borrowed D. borrowing

【题目】Thailand has decided to begin building its first standard-gauge railways in cooperation with China, ______may cost $12.2 billion.

A. when B. that C. it D. which

【题目】 Suddenly a good idea occurred to her, but she couldn’t find any paper ______.

A. to write B. to write on

C. written D. writing on

【题目】For years scientists have been worried about the ______ of air pollution on the earth's natural conditions.

A. effect B. result

C. account D. cause

【题目】Although nuclear power may lead to disasters, ______ the nuclear power industry has been operating safely for three decades in China.

A. and B. but C. so D. yet

【题目】The silence of the library ______only by the sound of pages being turned over.

A. had been broken B. breaks

C. broke D. was broken

【题目】Last Sunday morning we all __________ Mr Wang's wedding, including the managers.

A. joined B. took part in

C. attended D. joined in

【题目】The drug did not ______ his health. In fact，it seemed to have no ______ at all.

A. effect; effect B. effect; affect

C. affect; effect D. affect; affect

【题目】— __________ Emily is in such a hurry?

—I don't know. She might run to catch the bus.

A. Do you think why B. Why you think

C. Why not think D. Why do you think