题目内容

4、Eating more vegetables and exercising can delay or even prevent diabetes, according to scientists.

Diet and exercise reduced the rate of diabetes by about 43 per cent over 20 years among 577 high-risk Chinese adults, the researchers reported in the journal Lancet.

In the research, the volunteers were assigned （分配） to either a control group or one of three groups that included an improved diet, better exercise or a combination of both.

At the end of the 20 years, 80 per cent of those who changed what they ate and exercised more had diabetes, compared with 93 per cent who made no changes, said Guangwei Li of the China-Japan Friendship Hospital in Beijing and Ping Zhang at the US Centre for Disease Control and Prevention.

The control team reported that insulin （胰岛素） infusions （注入） or daily injections given early to people with newly diagnosed type II diabetes （which accounts for about 90 per cent of all diabetes cases and is closely linked to fatness and physical inactivity） helped the body's insulin-producing cells and restored blood sugar control faster than standard pills.

The findings came as part of a series of studies addressing new research about diabetes, which affects 246 million adults worldwide, and accounts for six percent of all global deaths. The researchers did not say what specific foods or amount of exercise contributed to the health improvements but said the findings provide an effective strategy to deal with a disease that kills about 3 million people worldwide each year.

"The challenge is to translate research findings into practical clinical improvements for patients. Although prospects are hopeful, they are not assured," the Lancet wrote in a commentary.

The International Diabetes Federation estimates more than 380 million people will have a form of diabetes by 2025 as more developing nations adopt a Westem lifestyle. Too much blood sugar in the blood ─ a quality of diabetes ─ can damage eyes and also leads to heart disease, stroke and limb amputations.

1．What did the researchers find out?

       A．How long it would take to prevent diabetes.

       B．How long diabetes could be delayed.

       C．How lifestyle changes could affect people's health.

       D．How diabetes could be controlled by medicines.

2．According to the Lancet, what's the challenge?

       A．The proving of the findings.

       B．Further research on diabetes.

       C．The applying of these findings.

       D．The spreading of the new strategy worldwide.

3．Which of the following statements about the research may be TRUE?

       A．The volunteers are Chinese patients with diabetes.

       B．The research is run by experts from China and US cooperatively.

       C．Too many insulin infusions lead to physical inability.

       D．Type II diabetes accounts for six per cent of all global deaths.

4．What can be inferred from the last paragraph?

       A．The International Diabetes Federation is leading a series of researches into diabetes.

       B．The Asian lifestyle is healthier than the European lifestyle.

       C．Diabetes can result in too much sugar in blood.

       D．Diabetes can result in other diseases.

5．What's the main idea of the text?

       A．The causes of diabetes have been discovered.

       B．Diabetes is the most dangerous disease.

       C．Improved diet and exercise can prevent or delay diabetes.

       D．More people will have diabetes.