阅读理解:Put down the potatoes. A new study has found that they are one of the most fattening vegetables around. Researchers from the Harvard School of Public Health analysed the dietary information of more than 130, 000 American men and women and found that potatoes, peas, and sweet corn were all linked to weight gain. Because of their high starch and low water content, potatoes are higher in calories than most vegetables.

They found that a high intake of fruit and vegetables led to weight loss over the 24-year period, but the researchers also found that eating fruit appears to be twice as effective as eating vegetables. Every extra portion of fruit eaten a day led to almost half a pound being shed over the four-year period. A handful of blueberries a day was linked to nearly a pound and a half of weight loss,and prunes, apples, pears and strawberries were also found to contribute to weight loss. Cauliflower, broccoli and Brussel sprouts were named as the vegetables that contributed to weight loss.

Although weight change has little to do with the daily diet,combining an increase of one to two servings of vegetables and one to two servings.of fruits every day would be associated with substantial weight change.

1.Potatoes are one of the most fattening. Vegetables mainly because of their ()。

A.high starch

B.low water content

C.high calories

D.ways of cooking

2.If you want to gain weight, you can take in more ()。

A.sweet corn

B.prunes

C.blueberries.

D.cauliflower

3.The underlined word "shed" in Paragraph 2 probably means ()。

A.put on

B.get rid of

C.store

D.flow out

4.The passage is likely to be taken from ()。

A.a news report

B.an advertisement

C.a health journal

D.a science fiction

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