國家開放大學(xué)人文英語3

希望對大家有所幫助，多謝您的瀏覽！作業(yè)1-11、—It'srainingsoheavilyoutside.I'mterriblyanxiousaboutmyson'ssafety.—.A.Well.Heisagoodboy.B.Yes,itis.Itwillraintomorrow.C.Don'tworryabouthim.Hewillcomebacksafeandsound.sonhaspickedupsomebadhabitsrecently,andIamreallyworriedaboutit.—.A.Yes,theyhavesomebadhabits.B.Cheerup.Ibelievehewillovercomeit.C.Well,helikespickingthingsupwhenheisout.3、Weoftencomparechildren______flowers.A.withB.toC.in4、Youngpeople______62%ofUniversityteachingstaff.A.compriseB.composeC.contain5、Lilyisagoodstudentexcept________sheisalittlebitcareless.A.whereB.whichC.thatStoppingYellingAtYourKidsParentingishard.Ifyou'reaparent,I'msurethatIdon'tneedtotellyouthatourjobisatoughone.Whenyou'remanagingchildren,itcanbedifficulttorememberthattheyarestilllearning.Ifyoufindyou授課：XXX希望對大家有所幫助，多謝您的瀏覽！areyellingatyourkidsmoreoftenthanyouwantto,herearesomewaysthatcanhelpyoureducetheyelling.I'vebeenworkingonthisforthepastfewmonthsandIhavetosay,it'sbeenamazingforboththekidsandme.授課：XXX希望對大家有所幫助，多謝您的瀏覽！Ifyouarehavinganargumentwithyourchild,youneedtomakesureyoubothtakethetimetoreallylisten.Itgivesbothofyoutimetothinkandreallylistentoeachother,whichisimportant.Kidsaremorelikelytolistentoyouifyoulistentothem!Oneofyourbiggeststrugglesistoremindyourselfofappropriateexpectations.Youcan'texpectthatyouryoungestactsasresponsiblyasyouroldest.Youshouldlowerwhatyouexpect–takingintoconsiderationthingsliketheirage–itcanmakeabigdifference.Youshoulddoyourbesttotakeamomentbeforeyellingandtakeinadeepbreath.Itmakesaworldofdifferenceforyou.Insteadofyelling,you'dbetterwhisper.Itcanalsohelpdiffuseanysituationbymakingthingsquieter,notlouder.Besides,themoretimeyouspendwithyourkids,thebetteryou'llgetatcommunicatingwiththem.You'rebothmorelikelytounderstandeachother.Ifyourchildrenaren'tlisteningoritseemstheyonlydon'tlistentoyou,youdon'ttakeitpersonally.Youshouldremindyourselfthatyourkidsarestilllearningandthey'renotgoingtobeperfect.操作提示：句子正確選擇下拉選項框為“T”；句子錯誤選擇下拉選項框為“F”。1.Asaparent,youmayknowthatparentingisaneasyjob.回答F2.ListeningtoeachotherisagoodwaytostopargumentbetweenparentsTandtheirkids.回答3.Usuallyyoungerkidsbehavelessresponsiblythanelderchildren.T回答4.Parentsshouldlowertheirexpectationsfortheirkids.回答T5.Bothyellingandwhisperingcanhelpmakethingsquieter.回答F授課：XXX希望對大家有所幫助，多謝您的瀏覽！1、—Kendidbadlyinhismathtest.I'mterriblyworriedabouttheresult.—.A.Iamsohappyheisveryhealthy.B.Well,itishardtosee.C.Comeon.Itisn'ttheendoftheworld.2、—Howdoyoufeelaboutyourfamilylife?—.A.Good.It'sagoodchoicetoworkthere.B.Notbad.Ithinkitisagoodchoicetobeafull-timemother.C.Notbad.Ihavevisitedtheirfamilyalotoftimes.3、Weconsideritnecessary______Tomshouldimprovehisbehavior.A.whichB.thatC.what4、Heaskedme___________ZhangHuacametoschoolornot.A.whatB.ifC.whether5、TomwonthefirstprizeoforalEnglishcontest,whichisbeyondhis______.A.reputationB.contributionC.expectationMostcoupleswhogetmarriedordecidetolivetogethergenerallyplantohavechildren.Severalyearsago,peoplethoughtthathavingbig授課：XXX希望對大家有所幫助，多謝您的瀏覽！familieswascommonandthiswasseenasanadvantage.Thatwasmainlybecausechildrenbeganworkingatanearlyagetohelpprovideforthefamily.Butwiththechangingtimesandwiththecostoflivinggettinghighereverysingleyear,havingabigfamilyisnolongerconsideredtobeapracticaloption.Infact,morecouplesconsiderthattheyhaveonlyonechildandsomedonothaveanydesiretobecomeparentsatall.授課：XXX希望對大家有所幫助，多謝您的瀏覽！AccordingtotheAustralianInstituteofFamilyStudies,by1986,womenaged40to44years,wereconsiderablymorelikelytohavegivenbirthtotwochildrenthanthreechildren(36%vs.27%)orfourormorechildren(19%).However,takentogether,womenwerestillmorelikelytohavehadthreeormorechildrenthantohavehadtwochildren(46%vs.36%).Inrecentyears,womenweremorelikelytohavehadtwochildrenthanthreeormorechildren–atrendthatwasmostmarkedinthemostrecentperiod(38%vs.25%in1996;38%vs.22%in2006).Thesedays,mostfamiliesinAustraliahavetwochildren.Butthenumberofwomenwhohadgivenbirthtoasinglechildincreasedprogressivelyfromonly8%in1981to13%in2006.TheU.S.CensusBureaustatesthatthereareapproximately14milliononlychildreninAmericatoday.Thiscomprises20%ofthechildren'spopulationcomparedtoonly10%aroundfiftyyearsago.操作提示：通過題干后的下拉框選擇題目的正確答案。1.Severalyearsago,peoplethoughtthathavingbigfamilieswas回C答A.uncommonandthiswasseenasanadvantageB.commonandthiswasseenasadisadvantageC.commonandthiswasseenasanadvantage2.By1986,takentogether,womenwerestillmorelikelytohavehad回B答children.A.lessB.moreC.no3.Inrecentyears,womenweremorelikelytohavehad回答CA.threeorfourchildrenB.morechildrenC.fewerchildren4.Accordingtothepassage,wecanpredictthatthenumberoffamilyBwithasinglechildwill回答(將會增長).A.decreaseddramaticallyB.increaseddramaticallyC.remainedsteady授課：XXX希望對大家有所幫助，多謝您的瀏覽！5.Whichofthefollowingmaybethebesttitleforthepassage?回A答A.FamiliesHavingFewerChildrenNowadays.B.CouplesHavingMoreChildrenNowadays.C.WomenBeingLikelytoHaveMoreChildren.作業(yè)2—Lookingafterababyisnotaneasyjob,isit?—.A.Lookingafterababyisverytired.B.Ilikelookingafterababy.C.No,itisn't.—DoyoumindifIrecordyourlecture?—.A.No,you'dbetternot.B.No，notatall.C.Nevermind.—Linda,what'swrongwithyourgrandmother?—.A.Sheisnotretired.B.Shehurtherleg.C.Shegotanewhouse.—I'msorrytohearthatyourgrandmotherisillinhospital.—A.That'sallright.B.It'sverykindofyou.C.Itisnothing.授課：XXX希望對大家有所幫助，多謝您的瀏覽！—Isyourgrandmothergettingwellnow?—.A.Yes,sheismuchbetternow.B.Shegetsupearly.C.Shefeelscomfortable.DemandforElderlyCareServicesinChinaRisingRapidlyThenumberofelderlypeopleagedabove60increased.DemandforelderlycareservicesinChinawillcontinuetoriseduetotheincreasingagingpopulation.Thenumberofelderlypeopleagedabove60wasover200millionin2012,andwillbe300millionin2025and400millionin2034,accordingtoexperts.ItwillbeatoughchallengeforChinatodealwith,duetotheincreasingratesofurbanizationandadecreasingbirthrate.TheChinesepeoplewillbefacingabigchallengeifwedonothaveenoughmoneywhenwegetolder.TheUnitedNationsdefinesanagingsocietyasonethathas10percentofitspopulationatorabovetheageof60.Whenmostdevelopedcountrieswereclassedasanagingsociety,theirgrossdomesticproduct(GDP)percapitastoodatbetween5,000to10,000U.S.dollarsorabove.However,Chinabecameanagingsocietyin2001,anditsGDPpercapitawasonly1,000U.S.dollars.Itwas6,000U.S.dollarsin2012.China’seconomicfoundationforanelderlysocietyisfragile.OnSept.13.2013,theStateCouncilissuedaguidelinetospeedupthedevelopmentofChina’selderlycareservices,hopingtocompleteasocialcarenetworkforitselderlyby2025.操作提示：通過題干后的下拉框選擇題目的正確答案。1.Whatdoestheword“decreasing”inParagraph2mean?回答AA.Itmeans“falling”.B.Itmeans“rising”.C.Itmeans“peaking”.2.WhatdoesGDPstandsfor?BA.GovernmentDocumentPublishingService.回答B(yǎng).Grossdomesticproduct.C.Generaldomesticproduct.B3.WhatwasChina’sGDPpercapitain2012?回答A.Itwas1,000U.S.dollars.B.Itwas6,000U.S.dollars.授課：XXX希望對大家有所幫助，多謝您的瀏覽！C.Itwas10,000U.S.dollars.4.WhyisChina’seconomicfoundationforanelderlysocietyfragile？A回答A.BecauseofitsincreasingagingpopulationanditslowGDPpercapita.B.BecausewhenChinawasclassedasanagingsociety,ourgrossdomesticproduct(GDP)percapitaishigh.C.BecauseofitsdecreasingagingpopulationanditshighGDPpercapita.C5.Thepassageimpliesthat回答A.ChinesegovernmentcandonothingtodealwiththechallengeoftheincreasingagingpopulationB.Chinesepeopledon’tneedenoughmoneywhentheygetolderC.TheChinesesocialcarenetworkisexpectedtobecompletedinthenearfuture作業(yè)3HeaskedJohn______hecouldswim.A.thatB.ifC.howHeisworth____________.A.trustB.trustedC.trustingShe_________thechildrennottomakeanynoise.A.tellB.toldC.saidYou'dbetter________tohospitalatonce.A.go授課：XXX希望對大家有所幫助，多謝您的瀏覽！B.toC.goingThereisonlyonethingthatpeoplecan't_____________you,andthatisyourwisdom.A.takecareofB.takeawayfromC.takedownAmongthemorecolorfulcharactersofLeadville'sgoldenagewereH.A.W.Taborandhissecondwife,ElizabethMcCourt,betterknownas“BabyDoe”.TheirhistoryisfastbecomingoneofthelegendsoftheOldWest.HoraceAustinWarnerTaborwasaschoolteacherinVermont.WithhisfirstwifeandtwochildrenheleftVermontbycoveredwagonin1855tohomesteadinKansas.Perhapshedidnotfindfarmingtohisliking,orperhapshewasluredbyrumorsoffortunestobemadeinColoradomines.Atanyrate,afewyearslaterhemovedwesttothesmallColoradominingcampknownasCaliforniaGulch,whichhelaterrenamedLeadvillewhenhebecameitsleadingcitizen.“Greatdepositsofleadaresuretobefoundhere.”hesaid.Asitturnedout,itwassilver,notlead,thatwastomakeLeadville'sfortuneandwealth.Taborknewlittleaboutmininghimself,soheopenedageneralstore,whichsoldeverythingfrombootstosalt,flour,andtobacco.『Itwashiscustomto“grubstake”prospectiveminers,inotherwords,tosupplythemwithfoodandsupplies,or“grub”,whiletheylookedforore,inreturnforwhichhewouldgetashareinthemineifonewasdiscovered.Hedidthisforanumberofyears,butnoonethatheaidedeverfoundanythingofvalue.Finallyonedayintheyear1878,sothestorygoes,twominerscameinandaskedfor“grub”.Taborhaddecidedtoquitsupplyingitbecausehehadlosttoomuchmoneythatway.Thesewerepersistent,however,andTaborwastoobusytoarguewiththem.“Ohhelpyourself.Onemoretimewon'tmakeanydifference,”Hesaidandwentonsellingshoesandhatstoothercustomers.Thetwominerstook$17worthofsupplies,inreturnforwhichtheygaveTaboraone-thirdinterestintheirfindings.Theypickedabarrenplaceonthemountainsideandbegantodig.Afterninedaystheystruckarichveinofsilver.Taborboughtthesharesoftheothertwomen,andsotheminebelongedtohimalone.Thismine,knownasthe“PittsburghMine,”made1300000forTaborinreturnforhis$17investment.授課：XXX希望對大家有所幫助，多謝您的瀏覽！LaterTaborboughttheMatchlessMineonanotherbarrenhillsidejustoutsidethetownfor$117000.ThisturnedouttobeevenmorefabulousthanthePittsburgh,yielding$35000worthofsilverperdayatonetime.Leadvillegrew.Taborbecameitsfirstmayor,andlaterbecamelieutenantgovernorofthestate.操作提示：通過題干后的下拉框選擇題目的正確答案。1.LeadvillegotitsnameforthefollowingreasonsEXCEPT回答C.A.becauseTaborbecameitsleadingcitizenB.becausegreatdepositsofleadisexpectedtobefoundthereC.becauseitcouldbringgoodfortunetoTaborC2.Theword“grubstake”inparagraph2means回答.A.tosupplyminerswithfoodandsuppliesB.toopenageneralstoreC.tosupplyminerswithfoodandsuppliesandinreturngetashareinthemine,ifonewasdiscoveredA3.Tabormadehisfirstfortune回答.A.bysupplyingtwoprospectiveminersandgettinginreturnaone-thirdinterestinthefindingsB.becausehewaspersuadedbythetwominerstoquitsupplyingC.bybuyingthesharesoftheother4.TheunderlyingreasonforTabor'slifecareeris回答B(yǎng).A.purelyaccidentalB.basedontheanalysisofminer'sbeingverypoorandtheirpossibilityofdiscoveringprofitableminingsiteC.throughthehelpfromhissecondwife5.Ifthispassageisthefirstpartofanarticle,whomightbeintroducedBinthefollowingpart?回答A.Tabor'slife.B.Tabor'ssecondwife,ElizabethMcCourt.C.Othercolorfulcharacters.授課：XXX希望對大家有所幫助，多謝您的瀏覽！–MayIopenthewindowtoletinsomefreshair?–___________A.ComeonB.Takecare.C.Goahead!–Ok,I'llfixyourcomputerrightnow.–Oh,takeyourtime.__________A.Ican'tstandit.B.I'minnohurry.C.That'sagreatidea.People__________foxes__________cleverbutslyanimals.A.consider…tobeB.consider…asC.consider…XThisplantcan'tbeexposed____________strongsunshine.A.inB.toC.byHeaskedhisneighborto________A.keepaneyeonhishouse.B.keeptheireyesonC.keeptheireyesopenThelawyouthfuloffenders(age18orunder)as“delinquent”iftheycommitoffenses.Asforthesameoffenses,thecourtwould授課：XXX希望對大家有所幫助，多謝您的瀏覽！consideranadultasa“criminal”.“Statusoffenders”arejuvenileswhocommitoffensesappropriateonlytojuveniles,suchastruancyfromschool.Hereareafewideastohelppreventyourchildrenfrombeingadelinquent.授課：XXX希望對大家有所幫助，多謝您的瀏覽！Keepyourchildreninschooltohelppreventdelinquency.Minoroffenses,suchastruancy,canleadtomoreseriousoffenses.Makecleartoyourchildrenyourexpectationsabouttheirschoolattendance.Meetwithschoolofficialsifnecessary.Exerciseadequatesupervision.Juvenilesrarelycommitseriousoffenseswhileunderthesupervisionofanadult.Seektheassistanceofyourlocalserviceagenciesifyoufeelyoucannotcontrolyourchildren.Attendparentingclasses,orjoinalocalsupportgroupifyouarehavingtroubleunderstandinghowtoexercisediscipline.Educateyourchildrenaboutthedangersofdrugs.Drugoffensesandaddictioncanhaveseriousconsequencesforyourchildren.Letyourchildrenknowyouwillnottoleratedruguse.Stayinformedaboutdrugusetrendsinchildren.Getyourchildreninvolvedinafter-schoolrecreationalactivities,sports,communityserviceorotherpositiveactivities.Youngpeoplewithpositiveoutletsfortheirenergyaremorelikelytodowellinschoolandavoidtheproblemsofdelinquency.Knowwhoyourchildren'sfriendsare.Showaninterestinyourchildren'ssociallifeandpeergroups.Peerpressuremayhaveabadeffectonteenagersandyoungpeople.Donotallowyourchildrentoassociatewithjuveniledelinquents.操作提示：句子正確選擇下拉選項框為“T”；句子錯誤選擇下拉選項框為“F”。F2、F3、IfTT5、T授課：XXX希望對大家有所幫助，多謝您的瀏覽！作業(yè)五-We'veworkedforalongtime,whataboutstoppingawhiletohavearest?-_____________________.A.Ilikeit.B.Youarewonderful.C.That'sagoodidea.-I'msorryforbreakingthecup.-Oh,____.I'vegotplenty.A.forgetitB.mypleasureC.helpyourselfThenewscame_____wewonthefirstprizeinthecompetition.A.thatB.whichC.whetherNowadayspeoplespendmoretimeexercisingtokeep_____.A.fitlyB.fittingC.fitIhavenoidea_____tomakemyspeechinteresting.A.howB.whyC.when1.One'shealthshouldneverbesacrificedforaneedtoworkBhard.A.人的身體健康應(yīng)該永不犧牲努力工作的需要。B.人永遠不該為了努力工作的需要而犧牲身體健康。授課：XXX希望對大家有所幫助，多謝您的瀏覽！C.人的身體健康永遠不該為了需要努力工作而被犧牲。2.TravellingathomeandabroadhasnowbecomeconvenientandCaffordable.A.在家和出國的旅游現(xiàn)在已經(jīng)變得方便和負擔得起。B.家里的和國外的旅游現(xiàn)在已經(jīng)變得方便和負擔得起。C.現(xiàn)在國內(nèi)和國外的旅行已變得方便和負擔得起。3.ExercisinghelpsrelaxyourbodyandhasbeenshowntorelievementalAstressaswell.A.鍛煉有助于放松身體并且已顯示也可以減緩精神壓力。B.鍛煉幫助身體松懈并且已經(jīng)被展示來減輕腦力壓力。C.鍛煉有助于身體松弛并已被顯露出可以很好地減輕精神壓力。4.Knowingwhenandhowtorelaxshouldbeapartofwell-balancedClifestyle.A．知道什么時候和怎樣休息應(yīng)當是明智生活方式的一部分。B．知道何時和怎樣放松應(yīng)當是勻稱的生活方式的一部分。C．知道何時放松和怎樣放松應(yīng)該成為均衡生活的一部分。5.Generallyspeaking,thelanguageusedinpublicspeakingisformalinstyle,clearandvividintoneandpersuasiveinApurpose.A．一般來說，公共演講中所用的語言文體正式，惟妙惟肖，具有說服力。B．一般來說，公共演講中所用的語言風(fēng)格正式，語調(diào)清晰生動，說理目的明確。C．一般來說，公共演講中所用的語言風(fēng)格正式，語調(diào)清晰生動，目的是勸慰別人。作業(yè)六Hardlyhadthetrainarrivedatthedestinationwhenthepassengers________outinnotime.A.flewB.droppedC.floodedGoodfriendsmeanssharinghappinessbutalsosadness____eachother.A.ofB.withC.by授課：XXX希望對大家有所幫助，多謝您的瀏覽！___________wasnotverywise.A.TellingherthetruthB.TotellherthetruthC.TellherthetruthItisanopensecret_____heisnotaqualifiedmanager.A.thatB.whichC.whatYou'dbetterA.payattentiontolisteningtotheteacherinthelesson.B.payingattentiontoC.payingattentiononEnglish,theGlobalLanguageEnglishisspokenaslanguagebyaround377andasasecondlanguagebyaround375millionspeakersintheworld.SpeakersofEnglishasasecondlanguagewillsoonoutnumberthosewhospeakitasafirstlanguage.Around750millionpeoplearebelievedtospeakEnglishasaforeignlanguage.Englishhasanofficialoraspecialstatusin75countrieswithatotalpopulationofover2billion.ThedominationoftheEnglishlanguagegloballyisasurething.Englishisthelanguageofinternationalcommunications,business,tourism,education,science,computertechnology,mediaandtheInternet.Britishcolonialisminthe19thcenturyandAmericancapitalismandtechnologicalprogressinthe20thcenturywereundoubtedlythemaincausesforthespreadofEnglishthroughouttheworld.Fromthefifteenthcentury,theBritishbegantosailallovertheworldandbecameexplorers,colonistsandimperialists.TheytooktheEnglishlanguagetomanyplaces.Forthelasthundredyears,theUSAhasplayedaleadingroleinmostpartsoftheworld.TheHollywoodfilmindustryalsoattractedmanyforeignartistsinquestoffameandfortuneandthenumberofAmericanfilmsproducedeveryyearsoonfloodedthemarket.However,thefutureofEnglishasagloballanguagewilldependverylargelyonthepolitical,economic,demographicandculturaltrendsintheworld.授課：XXX希望對大家有所幫助，多謝您的瀏覽！1.Englishisspokenasasecondlanguagebyaround377millionpeopleFintheworld.回答2.SpeakersofEnglishasasecondlanguagearemorethanthosewhospeakFitasafirstlanguage.回答3.Itisnotsurprisingthat70%ofallinformationstoredintheinternetFisinEnglish.回答4.ThespreadofEnglishthroughouttheworldresultedfromBritishcolonialisminthe19thcenturyandAmericancapitalismandtechnologicalTprogressinthe20thcentury.回答5.Itisdefinitelypredicted(預(yù)見)thatEnglishwillstillactasaFgloballanguageinthefuture.回答作業(yè)七AppledevelopeditsiPad-basedtextbooksin____________withmajortextbookpublishers.A.formB.linkC.conjunctionWecancertainlydeliverhigh-qualityeducationtomanystudentsatmuch________cost.A.lowB.lowestC.lowerQuizzesarepartofthelectureprogramtokeepstudentsengagedandkeepthem_________,forstudentstobeabletocheckthattheyunderstoodwhatwascovered.A.thinkingB.thinkalot授課：XXX希望對大家有所幫助，多謝您的瀏覽！C.tothinkNomorehavingtobuyexpensivetextbookswhichyouwillonlyuseforayearortwoandthensellor_______away.A.getB.giveC.takeIhave_________somecoursesandsoftwaretomySmartphone,andIfindtheyareveryinterestingandeasytouse.A.uploadedB.downloadedC.copiedFreeMassiveOnlineOpenCourses(MOOCs)Aclasswithhundredsoreventhousandsofstudentsmightsoundlikeateacher'sworstnightmare.ButabigideainhighereducationthesedaysisMassiveOpenOnlineCourses,orMOOCs.Someuniversitiesofferfree,non-creditMOOCsavailabletoanyoneintheworld.Otherschargeforcoursesandprovidecredits.Theideaisstilldeveloping.TheMassachusettsInstituteofTechnologystarteditsfirstMOOCin2012.Theschoolplanstooffermanyfree,non-creditcoursesthroughaprojectcalledMITx.ManyChineseuniversitiesarebeginningtoofferfreeMOOCsnowtoo.Nowadays,MOOCsalmostcovereverytopic,likecomputerscience,technology,mechanics,engineering,languages,etc.Generallyspeaking,therearenoformaleducationrequirementsforthesefreeonlinecourses.Studentswatchshortvideos.Then,theytakeinformal,ungradedquizzesafterthevideoseachweekforcertainweeks.Quizzesarepartofthelectureprogramtokeepstudentsengagedandkeepthemthinking,forstudentstobeabletocheckthattheyunderstoodwhatwascovered.Theycanrepeatedlywatchthevideosandtakethequizzeswhenevertheywant.Studentsreceivehomework.Theycanjoinonlinegroupstoexchangequestionsandanswersaboutthecourses.Theteachersholdvirtualofficehourstoanswerquestionsthatthestudentshaveposted.Theyalsopresenttheirownquestionsandobservations.Somesupportersclaimedthattherearethingsthatwecandobetterintheonlineformat.Wecancertainlydeliverhigh-qualityeducationtomanystudentsatmuchlowercost.操作提示：通過題干后的下拉框選擇題目的正確答案。授課：XXX希望對大家有所幫助，多謝您的瀏覽！A1.回答starteditsfirstMOOCin2012.A.TheMassachusettsInstituteofTechnologyB.HarvardUniversityC.AChineseuniversityC2.Whichisnotthefreeonlinecourses?回答A.Studentscanwatchshortvideos.B.Studentsmayasktheteacherssomequestions.C.Studentsmusttakegradedquizzes.B3.Theycanjoinonlinegroups回答.A.todiscussthequizzesB.toexchangequestionsandanswersC.topresenttheirobservationsA4.Theteachershold回答toanswerquestionsthatthestudentshaveposted.A.virtualofficehoursB.face-to-facemeetingsC.regularse