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1、第四单元检测(时间:100分钟满分:120分)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)阅读下面短文,从每题所给的A、B、C、D四个选项中,选出最佳选项。ASearching the Internet may help middle-aged and older adults keep their memories sharp,US researchers said.Researchers at the University of California,Los Angeles,studied people doing Web searches by re
2、cording their brain activity.“What we saw was that people who had Internet experience used more of their brain during the search,”Dr.Gary Small,a UCLA expert on aging,said.“This suggests that just searching on the Internet may train the brain and that it may keep it active and healthy.”“This is the
3、first time that someone has simulated(模拟) an Internet search task while scanning the brain,”Small said.His team studied 24 normal volunteers between the ages of 55 and 76.Half were experienced in searching the Internet and the other half had no Web experience.However,the two groups were similar in a
4、ge,gender and education.Both groups were asked to do Internet searches and book reading tasks while their brain activity was monitored(监视).“We found that in the book reading task,the visual cortexthe part of the brain that controls reading and languagewas activated,”Small said.“In doing the Internet
5、 search task,there was much greater activity,but only in the Internet-savvy group.”He said it appears that people who are familiar with the Internet can engage in a much deeper level of brain activity.Activities that keep the brain engaged can preserve brain health and thinking ability.Small thought
6、 learning to do Internet searches may be one of those activities.1Researchers when volunteers were doing Web searches.A.studied the InternetB.activated the brainC.monitored the brain activityD.recorded their memories解析细节理解题。由第五段可知,当志愿者在网上搜索时,研究人员监控着他们的大脑活动。答案C2The two volunteer groups were .A.of the
7、 same ageB.similar in educationC.good at the computerD.book lovers解析细节理解题。由第四段最后一句“However,the two groups were similar in age,gender and education”可知,B项符合题意。A项使用了the same,与原文similar 不符。答案B3According to the passage,we can learn that .A.searching the Web keeps the brain more engagedB.reading books kee
8、ps the brain more engagedC.watching TV keeps the brain more engagedD.chatting online keeps the brain more engaged解析细节理解题。由最后一段第一句话“.who are familiar with the Internet can engage in a much deeper level of brain activity”可知,搜索网页可以使大脑更活跃。答案A4What can we conclude from the last paragraph?A.Web searching
9、is good for the brain.B.Web searching damages the brain.C.Activities are good for the brain.D.Activities damage the brain.解析推理判断题。阅读全文尤其是最后一段可知,研究者发现搜索网页对大脑有益处。答案ABWhich do you think is the best way to keep healthy?With the development of the society,people no longer worry about where their next mea
10、l comes from as they did in the old days.They become more and more concerned about their health problem.Different people come up with different views:eating green food,doing outdoor exercises or going to hospital for medical treatment frequently.As far as I am concerned,the best way to keep healthy
11、is to develop a good quality of psychology(心理).According to some surveys,nowadays,most patients are not physically sick but mentally(精神上)ill.They feel the burden on their shoulders is much heavier than others,so they cant step out of the shadow of depression and sadness.They need to release(释放)their
12、 spirit to the nature.Besides,if you have developed a good quality of psychology,youll become more sociable and thus more willing to play your part in the society.Joining in some keep-fit clubs or attending some travel agency,which by themselves are various versions of physical exercise,will benefit
13、 you a lot.As a poem says,youth is not a period of time;its a state of mind.Everybody wants to keep young at heart because youth is a symbol for endless energy and passion for living.Keep a good quality of mind,or keep a sense of humour,even if you are 80,and youll never be old.5According to the pas
14、sage,in the old days,what people cared most might be .A.foodB.exercisingC.clothingD.health解析推理判断题。由第二段第一句“.people no longer worry about where their next meal comes from as they did in the old days”可知,从前人们最关心的也许就是吃的。答案A6The most probable reason for patients who are mentally ill might be .A.burdenB.de
15、pressionC.sadnessD.spirit解析推理判断题。由第三段第一、二两句可知,患有精神疾病的人负担(burden)比别人重是走不出忧郁和悲伤的阴影造成的。答案A7The best way to develop a good quality of psychology might be .A.taking social responsibilityB.exercising in a keep-fit clubC.going on journeysD.taking physical exercise解析推理判断题。由第四段最后一句可知,要想有个良好的心理素质,就必须参加健身俱乐部或参加一些旅行社,而它们本身就是各种形式的体力锻炼。由此可见,参加俱乐部或旅行社不是目的,关键是体力锻炼。因此D项为最佳选项。答案D8The key point to keep young is to .A.keep exercisingB.keep a young heartC.keep humourousD.keep a proper diet解析细节理解题。由文章倒数一、二两段可知,保持年轻最关键的一点就是保持一颗年轻的心。答案BC(导学号57500006)(2016四川卷)In the depths of the French Guianese rainforest,th
