練習(xí):
1. Too much salt raises ones risk for
A high blood pressure.
B heart attacks.
C strokes,
D all of the above.
2. How much salt do most American adults eat per day?
A No more than 1,500 mg
B Closer to 3,500 mg.
C Less than 3,436 mg.
D Closer to 1,500 mg.
3. To improve their blood pressure, people should have a diet
A rich in potassium and sodium.
B rich in potassium and calcium.
C rich in calcium and sodium.
D none of the above.
4. The high-risk groups include those
A who are black.
B who are over the age of 40.
C who are white and young.
D both A and B
5. Packaged, processed and restaurant foods are known to be
A cheap.
B tasty.
C rich in salt.
D healthy.
答案與題解:
1. D 短文的第一段說(shuō),吃鹽過(guò)多會(huì)增加罹患高血壓,心臟病和中風(fēng)的危險(xiǎn)。
2. B 短文的第二段說(shuō),大多數(shù)美國(guó)成年人的日食鹽量接近300 毫克。
3. B 短文的第三段說(shuō),采用低鈉并富含鉀、鈣的飲食方式將有利于改善血壓。
4. D 短文的第五段說(shuō),黑人和年齡超過(guò)40 歲的人被視為高危人群。
5. C 短文的倒數(shù)第二段說(shuō),人們所食用的納絕大部分來(lái)自于包裝、加工和飯店食品。