A.heart disease is caused by people's weight
B.bad living habits make children die young
C.increasing weight could kill young people
D.adults know how to change their shape of body
【答案与解析】 C 细节题。从第2段第1句话可知由于肥胖引起了许多疾病,成为年轻人的健康杀手。
49.According to Professor Prentice, people become fatter because ________.
A.the energy people take in is more than they need
B.high technology makes people use less energy
C.food contains too much energy
D.people like to eat fast food
【答案与解析】 A 推断题。从第5段可知Professor Prentice 认为现代人体形的急剧改变主要是因为摄入的能量多于消耗的能量。
50.For the underlined question, the answer “no” suggests ________.
A.children should refuse fast-food diets
B.children's obesity is becoming more and more serious
C.Americans have realized the bad consequence of the obesity
D.the government should call on fat people to lose weight as soon as possible
【答案与解析】 C 推断题。由文中“No, because this is now becoming an alarmingly serious problem in the US”可知答案。
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