Book2Unit4北师大英语必修二单元练习

1、 Book 2Unit 4Cyberspace.完形填空Many people think it is safe to use a cellphone while they are driving.Yet scores of studies suggest that real multitaskersthose who can_1_out multiple tasks equally well，make up just 2 percent of the population.More surprisingly，the so­called “supertaskers”_2_have d

2、ifferently structured brains to the other 98 percent.The brain areas that make supertaskers_3_from the rest of the population are the same parts that are most different between_4_and nonhuman primates，according to David Strayer，director of the applied cognition lab at the University of Utah.Scientis

3、ts are_5_of the reason why some brains are different.In fact，we could all benefit from doing just a(n)_6_task at once.In most of us，scientists have_7_a “bottleneck in the brain” that may explain why we find it_8_to do two things at once.The_9_appears to be caused by a logjam of nerve messages.Faced

4、with two almost_10_tasks less than 300 milliseconds apart，the brains ability to deal with the second one slows down.The_11_response to the second task was postponed until the response to the first was completed.This means that with e­mails，phone calls，text messages and online social media all c

5、ompeting for our_12_，often against a background of television，radio or music，our brains can_13_information overload.Scientists made the discovery after scanning the brains of_14_attempting to multitask on a computer.The task was deliberately designed to involve the use of _15_senses and motor respon

6、ses.1A.carry BputCturn Dthink答案A解析考查动词。根据“multiple tasks”可知，此处用carry较为合适，语境表示那些真正同时可以把多项工作做好的人仅占人口的百分之二。2A.interestingly BstrangelyCactually Dnormally答案C解析考查副词。此处用actually说明一种事实。更令人惊奇的是这些所谓的一次可以做多种工作的人的大脑和其他人的大脑构造不同。3A.result BseparateCconclude Ddiffer答案D解析考查动词。由上文可知一次可以做多种工作的人的大脑和其他人的大脑构造不同。所以用diff

7、er from.表示“不同于”。4A.humans BanimalsCplants Dmonkeys答案A解析考查名词。由下文中的“nonhuman primates”可知此处应用humans。5A.conscious BunsureCaware Dskeptical答案B解析考查形容词。科学家们拿不准为何一些大脑是不同的。根据语境可知用unsure“无把握”。conscious意识到；aware知道；skeptical怀疑的，均不符合语境。6A.single BsimpleCcomplex Dimportant答案A解析考查形容词。从上文中的“Yet scores of studies su

8、ggest that real multitaskers.”可以看出整理主张一次只完成一项任务。single用于强调。7A.suggested BindicatedClocated Dinferred答案C解析考查动词。语境表示科学家们在大脑中确定瓶颈的准确位置。故只有locate“确定的准确位置”符合语境。8A.easy BhardChandy Dcomfortable答案B解析考查形容词。由上文中的“bottleneck in the brain”可知一心二用是困难的。9A.reason BproblemCresult Dconclusion答案B解析考查名词。本段意在说明瓶颈问题的起因，

9、因此用problem，这一问题似乎是由神经信息的阻塞引起的。10A.different BinterestingCsimultaneous Dridiculous答案C解析考查形容词。由首句信息可知文章探讨的是人们能否一心二用的问题，即是否可以同时做两件事，simultaneous同时发生的，同步的。11A.mental BneuralCproper Dpossible答案B解析考查形容词。由上文中的“The problem appears to be caused by a logjam of nerve messages.”可知，此处涉及的是神经系统的反应。故用neural“神经系统的”。

10、12A.energy BeffortCinformation Dattention答案D解析考查常识。根据常识可知“e­mails，phone calls，text messages and online social media”是会使我们分散注意力的。故应选D项。13A.acquire BachieveCmake Dreach答案D解析考查动词。由上文中的“e­mails，phone calls，text messages.against a background of television，radio or music”可知，我们的大脑是在超负荷工作。只有reach适

11、合，此处意为“达到信息超负荷”。achieve通常指达到目标。14A.volunteers BpatientsCstudents Dworkmen答案A解析考查名词。由下文中的“.attempting to multitask on a computer.”可知，这些被检测的对象不是特定的职业，应是志愿者。15A.similar BsuperiorCdifferent Dsenior答案C解析考查形容词。由上文中的“.multitask on a computer.”可知，需要多种感官参与，故用different。.语法填空The Stand Your Ground law is not ye

12、t a reality in several states，where self­defense against an attacker today could make you the criminal.1.Under many current state laws，if you were to be killed by somebody with a knife or something on the street，self­defence with any kind of object that could be defined as a deadly weapon，

13、2.primarily (primary) guns and knives could get youthe victim3.charged (charge) with a crime for using too much force.In April 2005，the state of Florida was the first to pass a Stand Your Ground bill 4.which/that allows a licensed gun owner over age 21，who 5.feels (feel) threatened，to shoot the perp

14、etrator (行凶者) in self­defense，without trying to first escape.Since then，6.other states have passed similar self­defense law.The Stand Your Ground self­defense law allows people to defend themselves with deadly force，even in public places，when 7.they sense a life­threatening situa

15、tion 8.for themselves or others.Further，they would not be judged guilty in civil court，even if bystanders were to be injured.9.While/Though/Although it already is legal in most cases to use deadly force against 10.an attacker in your home，the new self­defense law also causes great concern.阅读理解T

16、he Work­Study Program gives you the chance to work part­time on campus.If you need more money to cover all of your education­related costs，you may be eligible for this program.AdvantagesWork experience：Last year，more than 1,400 positions were available across all departments.The jobs

17、vary from one department to the next，and in most cases.Participants find a position in their chosen field.·Money：During the regular academic year(September to April)，you can work part­time and earn $3,200sometimes morewhile you take courses!During the summer time，you work full­time an

18、d can earn around $6,000 over 18 weeks.·Easy access：Applying for the program is easy.There is no need for face­to­face interview.All the forms you need are online；just fill in the forms and email us；we accept no letter or phone application!Did you know?At the University of Ottawa，it i

19、s not essential to receive government assistance to qualify for our Work­Study Program.You simply need to demonstrate(说明)financial need.You could have one of these great Work­Study jobs：·Student ambassador·Computing and network technician·Marketing assistant·Sports team

20、 manager·Researcher/translator·WriterAnd more!The Admission Section receives and evaluates applications to undergraduate programs，in addition to answering applicantsquestions.Phone：613­562­5315Toll­free：1­877­868­8292(#53 15)Financial Aid &Awards Service S

21、ection：Phone：613­562­5734Toll­free Phone：1­877­868­8292Regular office Hours：Monday to FridaySeptember to May：9 am.to 430 pm.；June to August：9 am.to 330 pm.1What does the underlined word “eligible” in Paragraph 1 probably mean?ASkilled. BHelpful.CQualified. DFamiliar.答案C

22、解析词义猜测题。qualified合格的，适合的；skilled有技能的，熟练的；helpful有帮助的；familiar熟悉的(不与for搭配)。根据前一句“If you need more money to cover all of your education­related costs.”(如果你需要更多的钱去支付你所有的教育费用)，可知此处介绍适合(be qualified for)这个计划的情况。2To earn most each month，you may choose to work_.Afrom April to SeptemberBfrom May to Aug

23、ustCduring the daytimeDmost of the weekends答案B解析事实细节题。由Advantages部分的第二段可知：从9月到来年4月(September to April)做兼职可以挣$3,200，有时多一些；但在夏季18周做全职就可以挣$6,000，因此，若想月收入达到最多，需要在夏季这段时间，故选B。3How can students apply for a working position?ABy letter. BBy phone.CBy personal interview. DBy the Internet.答案D解析事实细节题。由Advantage

24、s部分的第三段中的“online”，“email”以及“accept no letter or phone application”可知用互联网。4To be admitted by the program，you need to _.Aget some government assistance first Bexplain your financial need firstCperform well in your studiesDhave much working experience答案B解析事实细节题。由Did you know? 部分中“You simply need to dem

25、onstrate(说明)financial need.”(你只需说明你的经济需求)可知答案为B项。5If you want to get more information about working positions，you should_.Aphone 613­562­5315Bphone 613­562­5734Cphone at any timeDask every department about them答案A解析事实细节题。由And more！后面提供的电话可知A项正确。.信息匹配下面是一篇应用文及其应用场合的信息，请阅读下列应用文和相关信

26、息，并按照要求匹配信息。首先，请阅读下列应用文：A.The Weekend Australian 07 Oct.2010,Endeavour Prize Home No.315 “Kawana Island” Results1st prize Ticket No.100179 Mr.& Mrs.B & W of Wishart QLD 41223Ticket Buyer2nd prize Ticket No.142229 K G of Maroochydore QLD 4558 $5，000 Cash Ap Club Member Winner $10，000 Cash Tic

27、ket No.155591 Mrs.G C of Hastings NZ 4201,Drawn：1100 a.m. Thursday 5 October 2010 at Endeavour Head Office 1/50Southgate Ave，Cannon Hill QLD 4170 Licence No.29762.B.The Weekend Australian 07 Oct.2010The Weekend Australian and Culture Club would like to congratulateOur recent competition winner.MacBe

28、th：Patrick Kelly，Diana Roberts，Kerry Allen，Tim Hunt，Amanda Lucci，Amy Idle，Marlies Lagerberg，Will Hurrey，Sandra Schmidt.C.The Cairns Post 07 Oct.2010ALL YOUR DENTAL NEEDS MET No waiting lists for appointments or emergencies Caring，Dentistswhere you need come first.Call now for an appointment on 7053 0753.D.The Cairns Post 07 Oct.2010AT AFFORDABLE SPECS Vince is retiring on Oct.20th.You can talk him into almost any deal on your new glasses.Call 7068 0897.E.The Weekend Australian 07 Oct.2010Anyone knowing the whereabouts of DAVID CHRISTIE EDWARDSSon of SM Edwards is asked to write to