第二部分：阅读选择(第11～15题，每题2分，共10分)

　　阅读下面短文，请从短文后所给各题的4个选项(A、B、C、D)中选出1个最佳选项，并在答题卡相应位置上将该项涂黑。

　　What Happens When You Stop Exercising

　　Have you ever wondered what would happen if you stopped exercising? A new study on twins was published in the journal Medicine & Science. The results of the study are dramatic.

　　In the study, researchers looked at 10 pairs of twin men. Each set of twins was in their mid-30s. Each had been brought up in the same family. Since they were identical, they shared the same DNA. They had maintained the same level of physical activity for most of their lives.

　　But there was one difference. One twin of each set had cut on exercising in the past few years due to work or family pressure. On average, the less active twin exercised less than twice a week, while the active twin exercised at least twice a week. The research team put each twin through a set of medical tests to study their overall health.

　　The results showed big differences. While the more active twins had lower body fat percentage, better endurance level, and normal sensitivity, the inactive twins had about seven more pounds of body fat, worse endurance, and signs of disease. Not only were their bodies different; their brains were different as well. The active twins had more gray matter (the information processing part of the brain), particularly in areas that control balance.

　　The conclusion of the study is clear. Quitting your fitness routine can bring negative effects to your body and your brain as well. Considering the less active twins in the study had become couch potatoes(沉溺于看电视的人)only recently, these changes can sneak up on you a lot sooner than you'd think. So keep exercising. It is beneficial to your overall health!

　　11.【题干】This text is mainly about_____.

　　【选项】

　　A.the importance of DNA

　　B.the role of exercise

　　C.the birth of a new journal

　　D.the difference between twins

　　【答案】B

　　【解析】文章标题为What Happens When You Stop Exercising，可知主要内容与锻炼有关。

　　这里只可以看，下载万题库估分，还可以练，可以看解析【点击下载】

　　12.【题干】Researchers chose twins for their study mostly because they_____.

　　【选项】

　　A.shared the same DNA

　　B.looked alike

　　C.had the same lifestyle

　　D.grew up together

　　【答案】A

　　【解析】文章第二段给出原因Since they were identical, they shared the same DNA. They had maintained the same level of physical activity for most of their lives.因此选择A选项。

　　这里只可以看，下载万题库估分，还可以练，可以看解析【点击下载】

　　13.【题干】The twins in the study differed in_____.

　　【选项】

　　A.sleeping habits

　　B.exercise frequency

　　C.working hours

　　D.food preference

　　【答案】B

　　【解析】文章原文But there was one difference. One twin of each set had cut on exercising in the past few years due to work or family pressure.表明，区别在于在过去的几年里，由于工作或家庭的压力，每组双胞胎中有一人减少了锻炼。

　　这里只可以看，下载万题库估分，还可以练，可以看解析【点击下载】

　　14.【题干】The study found that the more active twins became_____.

　　【选项】

　　A.less creative

　　B.less sensitive

　　C.more emotional

　　D.more endurable

　　【答案】D

　　【解析】原文中说While the more active twins had lower body fat percentage, better endurance level, and normal sensitivity，因此选择D选项。

　　这里只可以看，下载万题库估分，还可以练，可以看解析【点击下载】

　　15.【题干】The phrase "sneak up on" (Para.4) most probably means_____.

　　【选项】

　　A.protect

　　B.attack

　　C.affect

　　D.benefit

　　【答案】C

　　【解析】Quitting your fitness routine can bring negative effects to your body and your brain as well.文中最后一段表明放弃你的健身习惯会给你的身体和大脑带来负面影响。these changes can sneak up on you a lot sooner than you'd think.这些变化会比你想象的更早地_____你。根据前文可知，这些变化会造成负面影响，因此排除A、D选项。sneak up on偷偷地接近，与C选项影响更贴近。

　　这里只可以看，下载万题库估分，还可以练，可以看解析【点击下载】

长按/扫描二维码关注 助自考一臂之力

获取2021年4月自考成绩

获取10月自考报名时间

免费获取8次直播课程

获取最后6套预测卷

万题库下载丨微信搜索"万题库自考"

　　相关推荐：

　　2021年4月自考真题pdf下载 ※ 2021年4月自考答案pdf下载

　　2021年4月自考真题及答案 ※ 万题库估分 ※ 微信对答案

　　2021年4月自考成绩查询时间 ※ 直播解析2021年4月自考答案

　　各地2021年10月自考报名时间 ※ 2021年自考时间安排