问答题Do you prefer to purchase a new electronic device right after it is available in store or wait for a while? Please include specific details in your explanation.

问答题TheIntegratedWritingTaskForthistask,youwillreadapassageaboutanacademictopic.Aclockatthetopofthescreenwillshowhowmuchtimeyouhavetoread.Thenthepassagewillberemovedandyouwilllistentoalectureaboutthesametopic.Youwillbeabletoseethepassageagainwhenitistimetowrite.Youmaytakenoteswhileyoureadandlisten.Youwillthenhave20minutestowritearesponsetoaquestionthatasksyouabouttherelationshipbetweenthereadingpassageandthelecture.Usinginformationfromthereadingandthelecture,trytoanswerthequestionascompletelyaspossible.Thequestiondoesnotaskyoutoexpressyourpersonalopinion.Typically,aneffectiveresponsewillbe150to225wordslong.Yourresponsewillbejudgedonthequalityofyourwritingandonthecompletenessandaccuracyofthecontent.Youmayuseyournotestohelpyouanswer.Nowyouwillseethereadingpassagefor3minutes.Rememberthereadingpassagewillbeavailabletoyouagainwhenyouwrite.Afterthereadingtimeends,thelecturewillbeginimmediately,sokeepyourheadsetonuntilthelectureisover.ReadingDDThasahalf-lifeofanywherefromamonthinrunningwatertofifteenyearsincontaminatedsoil.Likeanytoxicpesticide,itisextremelydangerous,bothtohumansandtothenaturalworldingeneral,andwasthereforebannedinmostpartsoftheworldinthe1970s.ItsdamagingeffectstotheenvironmentwerefirstrecordedbyawomannamedRachelCarson,whowroteabookonthesubjectcalledSilentSpring.ShestartedinvestigatingDDTwhenshenoticedthatthenumberofsongbirdsaroundherhomedecreasedshortlyafterneighboringfarmsstartedusingthepesticide.Shediscoveredthatthechemicalbuiltupinanimalsasitprogressedalongthefoodchain.SmallanimalshadonlysmallamountsofDDTintheirbodies,buttheypassedthatpoisonalongtowhateverpredatorshadthemisfortunetoeatthem.Thismeantthatpredatorsatthetopoftheirfoodchain,suchasbaldeagles,endedupaccumulatinglargeamountsofthetoxinintheirbodies.DDThadterribleeffectsonthem.Oneoftheworstwasthatitcausedthebirdstoproduceeggsthathadshellsthatweretoothin.Asaresult,thechicksinsidediedbeforetheywereborn.ThatwaswhythenumberofbirdsaroundRachelCarson'shomewasdecreasing.Humans,ofcourse,arealsoatthetopoftheirfoodchain,sothisraisedquestionsaboutourownexposuretothechemical.ItwasalreadyknownthatDDTcouldbepoisonoustohumansfromitseffectsonthosewhosprayedit.Especiallyinthedevelopingworld,whereworkerssprayedexcessiveamountsofthepesticidewithoutthebenefitofprotectivegear,humanswereoftendirectlysickenedbythetoxin.Eventually,mostgovernmentsdecidedthatDDTservednousefulpurposethatcouldnotbecarriedoutbyusingsaferchemicals,soitwasbanned.ListeningQuestionDirections:Youhave20minutestoplanandwriteyourresponse.Yourresponsewillbejudgedonthequalityofyourwritingandonhowwellyoupresentthepointsinthelectureandtheirrelationshiptothereadingpassage.Typically,aneffectiveresponsewillbe150-225wordslong.Question:Summarizethepointsmadeinthelecturebeingsuretoexplainhowtheychallengeorcastdoubtonspecificpointsmadeinthereading.DDThasahalf-lifeofanywherefromamonthinrunningwatertofifteenyearsincontaminatedsoil.Likeanytoxicpesticide,itisextremelydangerous,bothtohumansandtothenaturalworldingeneral,andwasthereforebannedinmostpartsoftheworldinthe1970s.ItsdamagingeffectstotheenvironmentwerefirstrecordedbyawomannamedRachelCarson,whowroteabookonthesubjectcalledSilentSpring.ShestartedinvestigatingDDTwhenshenoticedthatthenumberofsongbirdsaroundherhomedecreasedshortlyafterneighboringfarmsstartedusingthepesticide.Shediscoveredthatthechemicalbuiltupinanimalsasitprogressedalongthefoodchain.SmallanimalshadonlysmallamountsofDDTintheirbodies,buttheypassedthatpoisonalongtowhateverpredatorshadthemisfortunetoeatthem.Thismeantthatpredatorsatthetopoftheirfoodchain,suchasbaldeagles,endedupaccumulatinglargeamountsofthetoxinintheirbodies.DDThadterribleeffectsonthem.Oneoftheworstwasthatitcausedthebirdstoproduceeggsthathadshellsthatweretoothin.Asaresult,thechicksinsidediedbeforetheywereborn.ThatwaswhythenumberofbirdsaroundRachelCarson'shomewasdecreasing.Humans,ofcourse,arealsoatthetopoftheirfoodchain,sothisraisedquestionsaboutourownexposuretothechemical.ItwasalreadyknownthatDDTcouldbepoisonoustohumansfromitseffectsonthosewhosprayedit.Especiallyinthedevelopingworld,whereworkerssprayedexcessiveamountsofthepesticidewithoutthebenefitofprotectivegear,humanswereoftendirectlysickenedbythetoxin.Eventually,mostgovernmentsdecidedthatDDTservednousefulpurposethatcouldnotbecarriedoutbyusingsaferchemicals,soitwasbanned.

问答题"Stress"Readashortpassageandthenlistentopartofalectureonthesametopic.ReadingTime:45secondsStressStressisdefinedasamentalandphysicalconditionthatoccurswhenanadjustmentoradaptationmustbemadetotheenvironment.Unpleasantconditionsoreventscausestress,as,forexample,financialproblems,adivorce,healthissues,orpressureatwork.However,acertainamountofstressoccursevenwhentheadjustmentistoaconditionthatisperceivedasdesirable.Exercise,dating,movingtoanewhome,ortakingatripareallstressfulsituations.Althoughshort-termstressisusuallyharmless,theconsequencesoflong-termstresscanbedangeroustohealth.Factorsthatdecreasetheconsequencesofstressaretheabilitytopredictstressfulsituationsandthelevelofcontroloverthemthatcanbeachieved.Nowlistentopartofalectureinapsychologyclass.Theprofessoristalkingaboutanexperiment.QuestionExplainthecausesofstressandrelatethemtotheexperimentwithrats.PreparationTime:30secondsPreparationTime:60seconds

问答题Do you believe that people in the future will read fewer books? Why or why not?

问答题Promotion Risk In management science, a "promotion risk" is an individual with the following features. First, the individual has been promoted into a high or relatively high position in the company. He has been promoted because of demonstrated superior abilities for some of his position's more important tasks. However, the individual also displays certain weaknesses for performing other of his position's duties. Such a person is a "risk" because his weaknesses may lead to serious errors which damage the company or reduce profits. So the company must consider the risk when making the promotion or hiring decision. Question: Using information from the reading and the lecture, explain how the professor's example of promotion risk is related to the reading passage. Now hear a talk on the same subject.

问答题Independent Writing Directions For this task, you will write an essay in response to a question that asks you to state, explain, and support your opinion on an issue. You will have 30 minutes to plan, write, and revise your essay. Typically, an effective essay will contain a minimum of 300 words. Your essay will be judged on the quality of your writing. This includes the development of your ideas, the organization of your essay, and the quality and accuracy of the language you use to express your ideas. If you finish your essay before time is up, you may Clink on Next to end this section. When you are ready to continue, Clink on the Dismiss Directions icon. Read the question below. You have 30 minutes to plan, write, and revise your essay. Typically, an effective response will contain a minimum of 300 words. Question: What is your opinion? In today's information age, some students prefer to study at home with the help of computers or televisions, while other students like to study at traditional schools. Which of the ways would you prefer? Use specific reasons and examples to support your opinion.

问答题Pleaselistencarefully.

问答题New Printing Rules in the Computer Lab Western University has decided to limit the usage of printing paper in the computer lab, which means each student may print up to 100 copies per month. This is because some students complain that too much paper is wasted and the printer often got paper stuck in the machine. Therefore, the number of printing paper should be controlled in order to save paper resource and ensure the proper operation of the printer in the computer lab. Question: The woman expresses her opinion towards the university's decision to put limit on the usage of printing paper. State her opinion and explain the reasons she gives for holding that opinion.

问答题"MeetingPeople"Nowlistentoashortconversationbetweenastudentandhisfriend.QuestionDescribetheman'sproblem,andthetwosuggestionsthathisfriendmakesabouthowtohandleit.Whatdoyouthinkthemanshoulddo,andwhy?PreparationTime:20secondsRecordingTime:60seconds

问答题阅读：captive market，因为产品数量的固定，消费者不得不消费高额的价钱买东西。 听力：教授给了一种例子，说在去一个城市do 商务， 在等飞机的时候要去买吃的，但只有两家卖吃的， 而且队很长，教授最后还是买了，一个三明治花了两倍的钱。

问答题Some parents suggest children should be paid to do housework. Do you agree? Include reasons and details in your explanation.

问答题Inthisquestion,youwillreadashortpassageaboutacampussituation,listentoaconversation,andthenspeakinresponsetoaquestionaboutwhatyouhavereadandheard.Afteryouhearthequestion,youhave30secondstoprepareyourresponseand60secondstospeak.

问答题Title: 撒哈拉大沙漠中某族群农业的发展 大致内容 讲亚洲西南位置的一个文明。说sand不适合种植植物，因为缺乏营养（有题）。但是暖和的天气使得这块地区的higher country适合生长植物，而且长得很好，植物的繁荣也伴随着N人种的繁荣。N人种非常善于gathering foods,技巧非常高明，所以他们活动范围非常广，到处去gather food（有题，问N人种和另外一个人种的区别）。食物多了，很多部落就settle下来了，选择靠近水源的地方。到后来，这个部落就出现等级制度了，等级制度显示在陪葬物品的不同（同义改写题）。原因是他们要重新分配多余的食物，有个题目问出现等级制度的原因是什么。后面还说道ritual的问题，可能也跟等级制度的产生有关。后来天气变差了，正好是N人口继续增长的时期，使得食物减少，都到更高的地方去了，但是这些部落因为要选择靠近水源的地方居住，所以跑来跑去很麻烦，最后就改种plant,不去gathering了。

问答题{{B}} Fixed Action Patterns of Animal Behavior{{/B}} A fixed action pattern refers to a sequence of innate behaviors that is essentially unchangeable and usually conducted to completion once started. It is triggered by a sensory stimulus called a sign stimulus. Because the animal responds to the sign stimulus, rather than the environment as a whole, it may be "tricked" by signals that are out of their usual context. Even human beings have some behaviors in fixed action patterns, such as sneezes. Understanding some fixed patterns of animal behavior can help us to look deeper into the behavior of animals. Question: The professor uses two examples to illustrate the definition of "fixed pattern of animal behavior". Explain how these examples are related to the reading passage.

问答题Readashortpassageandlistentopartofalectureonthesametopic.AboriginalPeopleAlthoughthefirstinhabitantsofAustraliahavebeenidentifiedbyphysicalcharacteristics,culture,language,andlocale,noneoftheseattributestrulyestablishesapersonasamemberoftheAboriginalPeople.BecausetheAboriginalgroupssettledinvariousgeographicalareasanddevelopedcustomsandlifestylesthatreflectedtheresourcesavailabletothem,thereisgreatdiversityamongthosegroups,includingmorethan200linguisticvarieties.ProbablythemoststrikingcomparisonisthatoftheAboriginalPeoplewhoinhabitthedesertterrainoftheAustralianOutbackwiththosewholivealongthecoast.Clearly,theirsocietieshavedevelopedverydifferentcultures.AccordingtotheDepartmentofEducation,thebestwaytoestablishidentityasamemberoftheAboriginalPeopleistobeidentifiedandacceptedassuchbytheAboriginalcommunity.Nowlistentopartofalectureinananthropologyclass.TheprofessoristalkingaboutAboriginalPeople.QuestionExplainhowtheAboriginalPeopleareidentified.Drawuponinformationinboththereadingandthelecture.PreparationTime:30secondsPecordingTime:60seconds