Look at the questions for this part.
You will hear a passage about "American Weighs In ". You will listen to it twice.
For questions 24~30, indicate which of the alternatives A, B, or C is the most appropriate response.
Mark one letter A, B, or C on the Answer Sheet.

单选题 American foods are ______.

A、 insufficient and expensive
B、 many and various
C、 neither delicious nor healthful

【正确答案】 B

【答案解析】

单选题 What is the percentage of adults aged 20 to 74 who were obese in the 1960s?

A、 33 percent.
B、 24 percent.
C、 35 percent.

【正确答案】 B

【答案解析】

单选题 How many US adults aged 20 and older were overweight in 1988-1994?

A、 65 million.
B、 16 million.
C、 20 million.

【正确答案】 A

【答案解析】

单选题 Compared to the late 1970s, the percent of children aged 12 to 17 who were overweight in 1994 ______.

A、 decreased
B、 remained unchanged
C、 increased

【正确答案】 C

【答案解析】

单选题 What kind of market is sure to benefit from overweight people?

A、 The market for health care.
B、 The market for food.
C、 The market for weight-loss diets.

【正确答案】 A

【答案解析】

单选题 What is believed to be able to prevent and mitigate numerous chronic ailments?

A、 High blood pressure.
B、 A reasonable body weight.
C、 Smoking.

【正确答案】 B

【答案解析】

单选题 Koop once launched an assault on ______.

A、 chronic ailments
B、 obesity
C、 smoking

【正确答案】 C

【答案解析】