Question

14．Rice is an important part of many people's diets．Researchers from the Harvard School of Public Health in Massachusetts have released a report about rice．It shows that eating white rice increases the risk of Type Two diabetes （糖尿病）．However，eating brown rice reduces the risk of the disease．
The World Health Organization says more than two hundred and twenty million people worldwide have diabetes．Type Two diabetes results when the body cannot effectively use the sugar it produces．
    More than thirty-nine thousand men and one hundred and fifty-seven thousand women took part in the study．They were asked about their diet and day-to-day activities，as well as any pre-existing diseases．The study found that the people who ate five or more servings of white rice per week had a seventeen percent increased risk of developing Type Two diabetes．But those who ate two or more servings of brown rice a week had an eleven percent reduced risk of getting the disease．
   Brown rice is the grain in its natural form．White rice results after it has been refined．This involves removing the outer cover．Only the inner white kernel is left．White rice is often enriched to replace some nutrients lost during the refining process．
   Qi Sun is the lead writer of the report．He says the outer parts of brown rice slow down the work of the body's digestive enzymes （消化酶） into starch．This means that the release of sugar into the bloodstream is slower after eating brown rice compared to white rice．
   A diet of foods that quickly release sugar into the bloodstream has been linked with a greater risk of Type Two diabetes．The exact reason for this is not known．
   Doctor Sun says less refined grains have more nutritional value than refined grains．He says replacing white rice with whole grains like whole wheat or barley could result in a thirty-six percent lower chance of developing Type Two diabetes．He says people should replace white rice and other refined carbohydrates with whole grains whenever possible．
   However，brown rice does not last as long as white rice because of the oil-rich layer of bran．This makes it less usable in poor communities．The International Rice Research Institute is working to develop kinds of white rice whose starch is released more slowly．
63．What is the exact reason of Type Two diabetes？D
A．Eating too much white rice
B．Sugar in the bloodstream．
C．digestive enzymes in the starch
D．It is still unknown to us．
64．What does the underlined word"refined"in the fourth paragraph mean？A
A．Processed
B．Cut
C．Struck
D．Developed．
65．Which of the following is true？C
A．White rice has more nutritional value than whole grains．
B．The oil-rich layer of bran can prevent the brown rice from going bad．
C．Eating brown rice may reduce the risk of developing Type Two diabetes．
D．The outer cover of brown rice will speed the release of sugar into the bloodstream．
66．What's the best title of the passage？C
A．The importance of rice                       
B．Brown rice and white rice       
C．Diabetes and rice eating                     
D．Sugar and diabetes．

Answer 1

分析 本文属于说明文阅读，作者通过这篇文章主要向我们描述了米饭是许多人的饮食的重要组成部分，吃白米饭增加糖尿病的风险，吃糙米减少疾病的风险．

解答 63．D  细节理解题．根据文章第六段"A diet of foods that quickly release sugar into the bloodstream has been linked with a greater risk of Type Two diabetes．The exact reason for this is not known"可知二型糖尿病的确切原因我们不清楚；故选D．
64．A  词义猜测题．根据文章第四段"Brown rice is the grain in its natural form．White rice results after it has been refined．This involves removing the outer cover．Only the inner white kernel is left"Brown rice是自然形态的谷粒，精米经过精炼后会得到结果，这就包括去除外盖，只剩下内部白粒；可知词义是精炼，处理的意思；故选A．
65．C  细节理解题．根据文章倒数第二段"He says replacing white rice with whole grains like whole wheat or barley could result in a thirty-six percent lower chance of developing Type Two diabetes"可知吃糙米可能降低患二型糖尿病的风险；故选C．
66．C 主旨大意题．通读全文，可知文章主要讲了米饭是许多人的饮食的重要组成部分，吃白米饭增加糖尿病的风险，吃糙米减少疾病的风险；可知最佳标题为米饭与糖尿病；故选C．

点评 考察学生的细节理解和推理判断能力，做细节理解题时一定要找到文章中的原句，和题干进行比较，再做出正确的选择．在做推理判断题不要以个人的主观想象代替文章的事实，要根据文章事实进行合乎逻辑的推理判断．