【題目】 The energy in food is mainly in the form of three kinds of chemical materials --- carbohydrate (碳水化合物), protein (蛋白質(zhì)) and fat (脂肪). Carbohydrate provides 3.8 cal/gm (calories per gram) of energy, protein provides 4.0 cal/gm and fat provides 8.8 cal/gm. Each kind of food contains different amounts of these materials, as the round charts show below.

CALORIES NEEDED PER DAY

Baby 750

Office worker 1,500

Child aged 8 2,100

Woman feeding baby 2,700

Man 1,980

Boy aged 16 3,700

Woman 1,800

Farmer 3,600

1Who only needs half of the farmer’s calories in the chart?

A.The woman feeding baby

B.The office worker

C.The woman

2A 17-year-boy can increase the most calories if he has ________.

A.milkB.riceC.peanuts

【答案】

1C

2B

【解析】

這是一篇說明文,主要講述了人們?nèi)粘;顒?dòng)中所需要的能量以及一些食物的具體能量占比。

1細(xì)節(jié)理解題。根據(jù)表格內(nèi)容Woman 1,800Farmer 3,600可知,農(nóng)民每天需要3600卡路里的能量,婦女每天需要1800卡路里的能量,所以婦女每天需要的卡路里是農(nóng)民的一半。故選C。

2細(xì)節(jié)理解題。根據(jù)圖中所示可知,牛奶中碳水化合物占比40%;米飯中碳水化合物占比85%;花生中碳水化合物占比10%;根據(jù)Carbohydrate provides 3.8 cal/gm (calories per gram) of energy.可知,碳水化合物可以提供卡路里,所以碳水化合物占比越高,提供的能量也就越多;米飯中的碳水化合物占比最高,可以提供最多的能量。故選B

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