Question

【题目】We live in a sweet world. The average American kid eats more than 20 teaspoons of sugar per day, and adults eat 50% more sugar today than they did in the 1970s. We all know that too much sugar isn’t good for you. But did we know it could be dangerous? A team of researchers at the University of Utah used mice to do a study on the bad effects of sugar. They found it could have serious effects on people’s health.

Sugar is found not only in sweets and candies, but also in many household items like pasta and crackers.

During the 58-week-long study, mice were fed a diet containing 25% more sugar. This percentage equals a healthy human diet along with three cans of soda daily. The team found that these mice were twice as likely to die as mice fed a similar diet without the sugar. Though the mice did not show signs of obesity or high blood pressure, male mice produced 25% fewer offspring (后代) than the other mice.

Scientists often use mice for research because they have a similar genetic (基因) structure to humans. “Since most substances (物质) that are dangerous in mice are also dangerous in people, it’s likely that those physical problems that cause those mice to have increased deaths also work in people,”says study author James Ruff of the University of Utah. Findings from this study show bad effects that are not as noticeable as weight gain or heart problems. Sugar can contribute to long-term changes in the body that can change development and even shorten lives.

Cutting sugar out of the American diet altogether may be difficult. But making the effort to control our nation’s sugar need will provide for a truly sweeter future.

【1】The study done by researchers aimed at learning about________

A. the advantages and disadvantages of sugar

B. the bad effects of sugar on people’s health

C. the genetic structure of mice

D. American’s eating habit.

【2】 According to the study, which of the following statements is wrong?

A. Sugar can even shorten lives.

B. Sugar’s bad effects are not noticeable.

C. Eating much more sugar can make mice put on weight and get high blood pressure.

D. Mice are more likely to die when fed a diet containing 25% more sugar.

【3】From the passage we can infer_______

A. sugar plays a very important role in Americans’ diet

B. kids eat more sugar than adults in America

C. the study on human beings lasted 58 weeks

D. the genetic structure of mice is totally different from that of people

【4】What’s the best title of the passage?

A. Living a sweet life B. Kids eat much more sugar

C. Genetic structure of humans D. Danger of too much sugar

Answer 1

【答案】

【1】B

【2】C

【3】A

【4】D

【解析】

试题分析：糖在美国人的生活中起着重要作用。调查研究表明糖对人的身体健康可能有严重的影响。告诫人们控制吃糖。

【1】B细节理解题。根据第一段最后两句A team of researchers at the University of Utah used mice to do a study on the bad effects of sugar. They found it could have serious effects on people’s health.美国大学的研究者对糖的负面影响做了调查研究。他们发现糖对人的身体健康可能有严重的影响。故选B。

【2】C细节理解题。根据第三段最后一句the mice did not show signs of obesity or high blood pressure,做实验的老鼠并没有显示出肥胖和高血压的症状。故选C。

【3】A推理判断题。根据最后一段第一句Cutting sugar out of the American diet altogether may be difficult.把糖从美国人的饮食中去掉可能是困难的。即减少糖的美国饮食完全可能是困难的。故选A。

【4】D主旨大意题。根据第一段中的We all know that too much sugar isn’t good for you. But did we know it could be dangerous?我们都知道吃太多的糖对你不好。但是我们知道它可能是危险的吗？第一段最后一句他们发现糖对人的身体健康可能有严重的影响。故选D。