未知题型 SECTION 2 Optional Translation (30 points)A 17-year U. S. study has finally answered one of the most pressing questions about diabetes: Can tight control of blood sugar prevent heart attacks and strokes?The answer, reported Thursday in The New England Journal of Medicine, is yes. Intense control can reduce the risk by nearly half.And, the study found, the effect occurred even though the patients had only had a relatively brief period of intense blood sugar control when they were young adults. None the less, more than a decade later, when they reached middle age, when heart disease and strokes normally start to appear, they were protected. The study involved those with Type 1 diabetes, which usually arises early in life and involves the death of insulin-secreting cells.The question of whether rigid blood sugar control protects against heart disease and strokes has divided the field for decades, diabetes researchers said.'It's really a major question that has been around for a long time,' said Dr. Judith Fradkin, who directs diabetes research at the National Institute of Diabetes and Digestive and Kidney Diseases,Researchers knew that diabetes was linked to heart disease — at least two-thirds of diabetics die of heart disease. But although studies showed that controlling blood sugar protects against damage to the eyes, kidneys and nerves, there was no conclusive evidence that it would have the same effect on heart disease and strokes.'In that sense, this is a landmark study,' said Fradkin.But the result also gives rise to questions: Does the same effect occur in people with Type 2 diabetes, which usually occurs later in life and involves an inability to respond to insulin? And why would tight control of blood sugar for one brief period have such a pronounced effect later?Fradkin said she expected the results would hold for Type 2 diabetes. Another large U. S. federal study is addressing that question, she notes, but it is already known that tight control of blood sugar in Type 2 diabetes protects against nerve, kidney and eye damage, just as it does with Type 1 diabetes. In addition, a study in Britain hinted — although it did not demonstrate — that Type 2 diabetics who keep their blood sugar low have less heart disease and strokes.Fradkin said she hoped the emerging evidence and improving therapies would make a difference.

未知题型 Directions: For this part, you are allowed 30 minutes to write a letter. You should write at least 150 words according to the outline given below in Chinese:1. 假如你是李静，你想向校长申请参加西部大开发，你要给校长写一封信，信的内容包括：1．表达自己想要参加西部大开发的愿望；2．简要说明自己的理由。

未知题型 QUESTIONS 16-20For questions 16-20, mark the correct letter A-H on your answer sheet.Journalist: When did the thunderstorm start?Sally: 16 ______Journalist: And when do you usually go to bed?Sally: 17 ______Journalist: So before you went to sleep, you heard a noise in the garden?Sally: 18 ______Journalist: Were you afraid?Sally: 19 ______Journalist: And how old was the tree?Sally: 20 ______Journalist: Well, it's an interesting story. Thanks for talking to me.