Question

  Like most kids,you probably don't spend much time worrying about heart disease. After all,hypertension tends to become more common as people reach middle age and older. But doc?tors say it's never too early to start thinking about your heart or about salt.

  Blood pressure has been going up over the past decade in children and teenagers in the United States and many European countries. And a kid with high blood pressure is more likely to become a grownup with hypertension.

  Cutting down on salt might help stop the cycle. In one recent study,researchers from the United Kingdom analyzed 10 trials involving nearly 1,000 kids. The trial results showed that lowering sodium intake by 40 to 50 percent led to a significant decrease in blood pressure,even in infants.

  Reducing salt might also help fight childhood obesity,a growing public health problem. British researchers recently found that kids who eat less salt also drink fewer sugary soft drinks. Drinking less soda makes kids less likely to gain weight,become obese and develop high blood pressure.

  And salt can affect more than just your heart and weight. A study published in October found that a growing number of kids in the U. S. are suffering from an illness called kidney stones. This painful condition used to mostly affect people in their40s and older. Now,kids as young as 5 are getting it.

  The kidneys are responsible for filtering salt out of the bloodstream. So researchers think that kids' eating too much salt and not drinking enough water are partly to blame for the trend.

(   ) 5. What's the main idea of the passage?

   A. Hypertension is the most popular disease among adults.

   B. People should reduce salt and sugary soft drinks.

   C. People should begin thinking about salt at present. .

   D. Salt will affect your heart and weight.

(   ) 6. If you want to lower the risk of getting heart attack,you'd better         .

   A. drink less and eat less every day if possible

   B. avoid eating too much salt but drink more soft drinks

   C. take regular examinations in the hospital

   D. reduce nearly half of the amount of the salt you take

(   ) 7. The whole text is developed by         .

   A. space   B. evidence   C. time   D. importance

(   ) 8. What may partly cause children to get kidney stones?

   A. Eating too much salt and drinking little water.

   B. Eating too much and doing little exercise.

   C. Sleeping too much and putting on weight.

   D. Taking in too much salt and fat.

Answer 1

5-8 CDBA

B篇：本文主要谈论的是心脏病、高血压和过度摄入食盐的关系。

5. 主旨大意题。文章开篇点题,第一段的最后一句直接说出了本文的主题，即人们要尽早地考虑心脏和盐的问题。接下来的段落就是对这一现象的进一步分析，并说明盐能导致哪些疾病。因此C为正确选项。

6. 细节理解题。根据第三段最后一句及第二段最后一句得知正确选项为 D.

7. 文章结构题。本文为科普文，重在论述科学事实与结论，一般是通过实验等有效证据来证明研究成果，因此B正确。

8. 细节理解题。根据文章最后一段中的最后一句可知A正确。