单选题 The statement "Like a needle climbing up a bathroom scale, the number keeps rising" probably means _________.

A、 many Americans are obsessed by the needle climbing in the bathroom
B、 increasingly more people are getting overweight in the United States
C、 larger people are climbing the bathroom scale with the help of needles
D、 youngsters become larger thanks to age and activity

【正确答案】 B

【答案解析】本题以推断句义的方式考查第一段主旨大意。解题时首先要注意到该句中的借代修饰手法，然后要判断the number指代的是什么。 “Like a needle climbing up a bathroom scale”，以“像浴室台秤的指针不断上升一样”指代人们体重不断上升；“the number”指the number of people whose weights cause needles climbing，也即体重增加的人的数量。故答案为B项。