题目内容：

Some weight­loss camps, which are rare in China just a few years ago，have multiplied in Beijing, Qingdao, Shenzhen，and other cities. Today about 15 percent of adults, or 200 million Chinese, are reportedly overweight.Of these, 90 million—about 7 percent—are obese(极肥胖的)．

Experts say the obesity epidemic(流行病) is spreading to children, though more slowly than in adults. The obesity, they say, will do harm to the health of China’ s citizens and economy.“We're seeing a very large number of teenagers who are quite heavy and aren't moving much，” said Barry Popkin, a nutrition(营养) professor. Popkin carries out an ongoing health­and­nutrition survey of 16,000 households in China. He says more kids today are overeating and putting on weight “quite quickly.” In just ten years China‘s childhood obesity rate has doubled，with the greatest gains coming in urban areas.“In big cities it's a big problem.”

Some experts blame the extra fat on a range of factors, many of them tied to China’ s rapidly changing economy and culture. The diets of Chinese adults and children are far higher in meats, fish, eggs, dairy products, fats and sugars than ever before. In addition，kids—especially city dwellers—are more sedentary today and spend more time indoors in front of homework, television，computer games, and the Internet.

Shuwen Ng，a health economist, says that kids in China now have pocket money, and they spend a portion of it on junk food. Ng adds that advertising and peer groups influence kids' food choices. Certain foods, such as new candies or fast food, have attractive features.

China’ s childhood obesity rate still fall behind that of the United States, where some 15 percent of kids are said to be obese. But the long­term effects are equally serious.

1.According to the passage we know________.

A．weight­loss camps have been very popular in China six years ago

B．about 290 million Chinese are overweight in China in all

C．in China childhood obesity rate in rural areas is lower than that in major cities

D．America’ s childhood obesity rate is lower than China’s

2.Which of the following reasons of China’s childhood obesity is NOT mentioned?

A．Advertising on some new candies.

B．ignorance of weight-control.

C．Playing computer games for long time.

D．Having pocket money.

3.The underlined word “sedentary” in the third paragraph probably means________.

A．confident         B．patient       C．energetic         D．inactive

4.According to the passage we can infer________.

A．obesity explosion in China will affect the United States

B．there are great difference in kids' food choices now

C．junk food leads to childhood obesity

D．city children eat more than rural children

5.What's the best title for the passage?

A．Chinese Childhood Obesity problem

B．Weight­loss Camps in China

C．Obesity problem's influence on Chinese Economy

D．Obesity problem in China and America