考研英语(一)第一部分完形填空练习(上)
47页1、考研英语(一)第一部分完形填空练习(上)(江南博哥)材料题根据下面资料,回答1-20题If youre like many people, you may have decided that you want to spend less time1at your phone. Its a good idea:an increasing body of2suggests that the time we spend on our smartphones is3with our sleep, self-esteem, relationships, memory,attention spans, creativity, productivity and problem-solving and decision-making4.5there is another reason for us to rethink our6with our devices. By chronically raising levels of cortisol, the bodys main stress hormo
2、ne, our phones may be7our health and shortening our lives.Until now, most discussions of phones biochemical effects have focused on dopamine,a brain chemical that helps us8habitsand addictions. Like slot machines,smartphones and apps are explicitly designed to9dopamines release, with the10of making our devices difficult to put down. This manipulation of our dopamine systems is11many experts believe that we are developing behavioral12to our phones. But our phones effects on cortisol are potential
3、ly even more13.Cortisol is our primary fight-or-flight hormone. Its release triggers14changes, such as spikes in blood pressure, heart rate and blood sugar, that help us react to and15acute physical threats. These effects can be life-saving if you are actually in physical16like, say,youre being charged by a bull. But our bodies also release cortisol in response to emotional stressors an increased heart rate isnt going to do much good, such as checking your phone to find an angry email from your
4、boss.The good news is that if we break this anxiety-driven cycle, we can17our cortisol levels, which in turn may both18our short-term judgment and lower our19for long-term stress-related health problems. To make your phone less stressful, start by turning20all notifications except for the ones you actually want to receive.1单选题第(1)题选A.staringB.watchingC.lookingD.observing正确答案:A参考解析:star 凝视、注视 watch 观看 look 仔细想看、观察 observe 观察翻译:如果你和许多人一样,你可能已经决定要少花点时间_手机了. 空格需要填写一个动词与at搭配表示盯着手机看,根据本句句意可知stare能够与at
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