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共52道小题，约4440字。

　　南开实验学校2015-2016学年第一学期期初考试
　　高三英语
　　2015.9
　　本试卷共6面, 三大题, 满分135分。考试用时120分钟。
　　注意事项：
　　1．答卷前，考生务必用2B铅笔在“考生号”处填涂考生号。用黑色字迹的钢笔或签字笔将自己所在的学校以及自己的姓名和考生号、试室号、座位号填写在答题卡上。用2B铅笔将试卷类型(A)填涂在答题卡相应位置上。
　　2．选择题每小题选出答案后，用2B铅笔把答题卡上对应题目选项的答案信息点涂黑；如需改动，用橡皮擦干净后，再选涂其他答案。答案不能答在试卷上。
　　3．非选择题必须用黑色字迹的钢笔或签字笔作答，答案必须写在答题卡各题目指定区域内的相应位置上；如需改动，先划掉原来的答案，然后再写上新的答案；不准使用铅笔和涂改液。不按以上要求作答的答案无效。
　　4．作答选做题时，请先用2B铅笔填涂选做题题组号对应的信息点，再作答。漏涂、错涂、多涂的，答案无效。
　　5．考生必须保持答题卡的整洁。考试结束后，收卷时只交答题卷。
　　第I卷
　　第一部分　阅读理解(共两节，满分40分)
　　第一节　(共15小题；每小题2分，满分30分)
　　阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。
　　A
　　People who eat chocolate regularly tend to be thinner, new research suggests. The findings come from a study of nearly 1，000 US people that looked at diet, calorie intake and body mass index (BMI)—a measure of obesity.
　　It found those who ate chocolate a few times a week were, on average, slimmer than those who ate it occasionally. Even though chocolate is loaded with calories, it contains components that may favour weight loss rather than fat synthesis (合成), scientists believe.
　　Despite boosting calorie intalar chocolate consumption was related to lower BMI in the study, which is published in Archives of Internal Medicine.
　　The link remained even when other factors, like how much exercise individuals did, were taken into account. According to the researchers, there is only one chance in 100 that their findings could be explained by chance alone.
　　Lead author Dr Beatrice Golomb, from the University of California at San Diego, said, “Our findings appear to add to a body of information suggesting that the composition of calories, not just the number of them, matters for determining their impact on weight.”
　　This is not the first time scientists have suggested that chocolate may be healthy for us. Other studies have claimed chocolate may be good for the heart. Consumption of certain types of chocolate has been linked to some favourable changes in blood pressure, insulin sensitivity and cholesterol level. And chocolate, particularly dark chocolate, does contain antioxidants (抗氧化剂) which can help to wipe away harmful free radicals—unstable chemicals that can damage our cells.
　　However, while there's no harm in allowing yourself a treat like chocolate now and again, eating too much might be harmful because it often contains a lot of sugar and fat too. And if you are looking to change your diet, you are likely to benefit most from eating more fresh fruit and vegetables.
　　1．What does the underlined word “that” in Paragraph 1 refer to?
　　A．The study.          B．The findings.
　　C．The researchers.     D．The 1，000 US people.
　　2．The results of the research indicate that what matters the most is________．
　　A．when we eat chocolate
　　B．how much chocolate we eat
　　C．what type of chocolate we eat
　　D．how often we eat chocolate
　　3．According to Dr Beatrice Golomb, the factors that influence weight include________．
　　A．the number and the components of antioxidants
　　B．the quality and the number of calories
　　C．the quality and the composition of calories
　　D．the number and the composition of calorie
　　4．We can infer from the passage that both insulin and cholesterol_______