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1、此卷只装订不密封班级 姓名 准考证号 考场号 座位号 单元训练金卷高三英语卷（B）英语5 Units 1-2注意事项：1.答题前，先将自己的姓名、准考证号填写在试题卷和答题卡上，并将准考证号条形码粘贴在答题卡上的指定位置。2.选择题的作答：每小题选出答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑，写在试题卷、草稿纸和答题卡上的非答题区域均无效。3.非选择题的作答：用签字笔直接答在答题卡上对应的答题区域内。写在试题卷、草稿纸和答题卡上的非答题区域均无效。4.考试结束后，请将本试题卷和答题卡一并上交。第卷第一部分：听力(共两节，满分30分)略第二部分：阅读理解(共两节，满分40分)第一节（共1
2、5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，并在答题卡上将该项涂黑。AResearchers at Oxford University say they have developed a new method that could predict heart attacks years before they happen. They use mathematical algorithms(演算法) to examine CT images of a patients heart. One report on their study ha
3、s been published in the medical journal The Lancet.Most heart attacks result from a build-up of fatty tissue inside arteries(动脉) that carry blood from the heart to other areas of the body. Too much buildup can block this flow of blood and cause a heart attack. Currently, doctors use CT scans to lear
4、n when a sticky substance called plaque has already built up inside an artery. The new technology is designed to predict which arteries are at risk for future buildup. How much fat is present around heart arteries also can be measured. That fat changes when an artery becomes inflamed(发炎), serving as
5、 an early warning system for heart attacks.Charalambos Antoniades, a professor of cardiovascula(心血管) medicine at Oxford University, believes the research shows this method could be very effective in getting patients to take early steps to prevent future problems.“Say your arteries are inflamed and a
6、 narrowing will be developed five years down the line. So maybe you can start preventive measures to avoid this formation of plaques,” he said. “If you are able to identify inflammation in the arteries of the heart, then you can say which arteries will cause heart attacks.”Antoniades added that rese
7、archers had yet to estimate exactly how many heart attacks could be prevented. But he said he believes the technique could help identify between 20 to 30 percent of people at risk of having one.He added that the new technology will make such predictions easier because it works together with existing
8、 CT technology.21. You can identify which arteries will cause heart attacks by .A. locating where the inflamed arteries areB. seeing a cardiovascular doctorC. developing a new method to predict itD. measuring how much fat is built up22. This passage is probably from a .A. medical textbookB. travel b
9、rochureC. graduation paperD. science journal23. Whats Artoniades attitude towards the new method?A. Tolerant.B. Defensive.C. Critical.D. Favorable.BMore than nine out of 10 young people expose themselves to the blue light from smartphones before bed, causing problems with sleep. A new survey also sh
10、ows more than 28 million people in the UK regularly get no more than seven hours sleep a night. Prof Richard Wiseman, who commissioned the YouGov poll described the findings as “extremely worrying”. Of the 2,149 adults questioned, 78% said they used electronic devices before going to bed. This rose
11、to 91% among the 18 to 24-year-olds questioned in the survey.Getting less than seven hours sleep a night is below the recommended guidelines, and is associated with a range of problems, including an increased risk of weight gain, heart attacks, diabetes and cancer. “The blue light from these devices
12、 suppresses(压制) the production of the sleep-inducing hormone melatonin, so its important to avoid them before bed time,” said Prof Richard Wiseman, from the University of Hertfordshire.Everyone needs different amounts of sleep, but adults are generally thought to require a minimum of seven to eight
13、hours a night. Teenagers are recommended to get more, about nine hours. The proportion(比例) of people thought to be getting too little sleep had risen by a fifth since a “bedroom poll” conducted last year by the National Sleep Foundation.Last week revealed opticians were warning that overuse of smart
14、phones may be increasing peoples risk of eye damage. Optician Andy Hepworth said: “Blue violet light is potentially harmful to the back of your eyes.” So over a long period of time it can damage your eyes. When youre looking at a smart phone, the light peaking out of that is blue violet. The news ca
15、me as a survey of 2,000 people suggests under-25s check their phones 32 times a day.24.The purpose of the passage is to _.A.stress that people dont use smartphones.B.remind people of enough sleep.C.ask people not sleep too much.D.tell people not to use smartphoness before bed25.Which of the following statements is TURE according to the passage?A.According to a new survey, more than 28 million people in the UK get more than seven hours sleep a night.B.More than 90% young people expose themselves to the blue light from smartphones before bed.C.Of the 2,149 adults questioned
