初一英语教案人教版初一年级英语教案(18篇)

第页共页初一英语教案人教版初一年级英语教案(精选18篇)初一英语教案人教版初一年级英语教案篇一teachingobjectives:1.words:arrivetaxiflatbuildingmadeagain2.sentences:grandmamadechinesefoodforme.iwanttotryamericanfood.iwillwriteagainsoon.3.practisetopronounce‘wh’‘wr’.4.learnthesong:it’sabigexcitingworld.teachingproperties:cardstape-recorderpicturesteachingprocedureswarmer:1.stickthepicturesofunit1ontheboard.havethestudentsetothefrontandmimethetextofunit1.2.sayasentenceinthepresenttenseandgetthestudentssayitinthepasttense.exles:t:daminggoestonewyork.ss:damingwenttonewyork.t:grandmameetsdaming.ss:gradmametdaming.teachthetext:1.raisethepictureofthestatueoflibertyandask:whatisit?whereisit?”guidethestudentssay:it’sthestatueofliberty.it’sinnewyork”.t:damingisinnewyorknow.let’sseewhomethimattheairport.whathesawinnewyorkandwhatfoodhewantedtoeat.2.playthetape.havethestudentslistenandunderlinethenewwordsinbooks.3.teachthenewwords.4.playthetapeagain.havethestudentslistenandsay.afterthis,getthestudentstoanswerthefollowingquestions:⑴whometdamingattheairport?(grandmaandsimon)⑵whatdiddamingseeinnewyork?(buildings,cardsandpeople)⑶whatfooddidhewanttotry?(americanfood)5.pleteactivity2insb.(getthestudentstoaskandanswerinpairs)6.practisetopronouncewhwr.7.learnthesong:it’sabigexcitingworld.8.pleteexercise1inab.homework:practisethefollowingsentencesinpairs:whereareyoufrom?whereareyougoingtogo?whereareyougoingtogothere?whereareyougoingtodothere?designs:module10unit2i’minnewyorknowarrivegrandmamadchinesefoodforme.taxiflatiwanttotryamericanfood.buildingmadeiwillwriteagainsoon初一英语教案人教版初一年级英语教案篇二bethereisatalltreeinfrontofourteachingbuilding.therearesomestudentsplayingfootballontheplayground.2.think/findit+adjforsbtodosth(1).ifinditnecessarytotakedownnoteswhilelistening.(2).ifeelitimportanttohavesomeworkingexperience.(3).ifounditimpossibleformetoworkoutalltheproblemsinsuchashorttime.3.not…until(1).ididn’tknowthetruthuntilshetoldmewhathappened.(2).yesterdayididn’tgotosleepuntilmidnight.4.some…others(1).everyoneisbusyinclassroom.somearereading,othersarewriting.(2).therearemanyforeignstudentsinourclass.someofthemarefromeurope,othersefromamerica.5.notonly…butalso(1).injustthreeyears,shehadnotonlyfinishedallthelessons,butalsoreceivedherdoctor’sdegree.(2).forestscannotonlyfreshtheairbutalsoreducenoises.6.such…that/so…that(1).heissuchagoodstudentthateveryonelikeshim.(2).weweresodeeplymovedthatwecouldnotfallasleepthatnight.…to…(1).theyweretooangrytosayawordthatday.(2).heistooyoungtogotoschool.8.inorderto(1).heworkedveryhardinordertorealizehisdream.(2).inordertogetthereontime,wesetoffearlyinthemorning.abouttodosthwhen…/bedoingsthwhen…(1).iwasabouttogooutwhenthetelephonerang.(2).iwaswalkinginthestreetwheniheardaladycry“help,help”.to(1).heusedtoliveinshanghai.(2).thereusedtobeatreeinfrontofmyhouse./hear/watch/findsbdosth/doingsth(1).iheardsomeonelaughing.(2).isawhimputthekeyinthelock,turnitandopenthedoor.12.havesomedifficultyindoingsth/withsthdoyouhaveanydifficultyinunderstandingspokenenglish?busydoingsth/withsthhewasbusygettingreadyforhisjourney.练习一：根据上下文关系用连接词把以下各句连接起来，组成一个单句、并列句或复合句。1.a)gotoseethedoctoratonce.b)yourcoldmaygetworse.gotoseethedoctoratonce,oryourcoldmaygetworse.2.a)alicewasthefirsttopleteherpaper.b)alicemadequiteafewmistakesinherpaper.alicewasthefirsttopleteherpaper,butshemadequiteafewmistakesinit.3.a)wewereabouttostartofflastnight.b)thephoneinthelivingroombegantoring.wewereabouttostartofflastnightwhenthephoneinthelivingroombegantoring.4.a)unfortunately,john’scarbrokedownonthewayhome.b)johnhadtostopacarforalift.unfortunately,john’scarbrokedownonthewayhome,sohehadtostopacarforalift.5).a)hehasmadegreatprogressinhisstudies.b)alltheteacherspraisehim.hehasmadesuchgreatprogressinhisstudiesthatalltheteacherspraisehim.6.a)somepeoplewastefood.b)otherpeoplehaven’tenoughfood.somepeoplewastefood,whileothershaven’tenoughfood.7.a)it’stoolatetogotothecinemanow.8.a)youraunthasnootherthoughtbutwhatisbestforyou.b)ihavenootherthought,either.neitheryourauntnorihaveanyotherthoughtbutwhatisbestforyou.练习二：1、用but,then,instead,thenextmoment,when填空：theaccidenthappenedat7:15onthemorningoffebruary8,.iwaswalkingalongparkroadtowardstheeastwhenanelderlymancameoutoftheparkontheoppositesideofthestreet.thenisawayellowcardriveupthirdstreetandmakeasuddenrightturnintoparkroad.thenextmomentthecarhittheoldman.hefelldownwithacry.butthecardidn’tstoptosavetheoldman.instead，itdroveoffatgreatspeed.2、用atlast,then,so,uptonow,that,when填空：don’tloseyourcouragenevershalliforgetthefirstenglishlessongivenbymissliu.onthatday,whensheenteredtheclassroom,wefoundthatshewasayoungandbeautifulladywithabigsmileonherface.thensheintroducedherselfsayingthatweshouldcallhermissliuinsteadofteacherliu,amomentlater,sheletallofusgototheblackboardandsaysomethingaboutourselvesinenglishinturn.whenitwasmyturn,ifeltsoshyandfearfulthatididn’tdaretosayawordbeforetheclass.shecameuptomeandsaidkindly,“don’tbeafraid.ibelieveyoucandoit.eandhaveatry.”myfaceturnedredwheniheardthat.atlast,iwenttotheblackboardandwasabletodoitquitewell.shepraisedforwhatihaddone.uptonow,icanstillrememberherwordsinthefirstenglishlesson:“practicemakesperfect.don’tloseyourcouragewhenyoumeetwithdifficulties.tryonandonuntilyousucceed.”初一英语教案人教版初一年级英语教案篇三part1part2unit2listeningtexth:henrym:mike,anelephanthunterh:mike,whatwasitthatyouheardaboutmybrother’sjourney?m:iheardthathewentlookingforsolomon’smines.h:solomon’smines?wherearethey?m:idon’tknow.iknowwherethey’resaidtobe.h:tellme,please!m:well,southafricanelephanthuntersusuallydon’tcaremuchforthelifeandcultureofnativeblacks.butsometimesyoumeetamanwhotakesthetroubletolistentothem,andunderstandthehistoryofthisdarkland.itwassuchamanwhofirsttoldmethestoryofsolomon’smines,nowthirtyyearsago.hisnamewasbrown.ilistenedcarefullytohim,foriwasyoungatthetime,andthisstoryofanancientcivilisationanditstreasurestookagreatholduponmyimagination.heaskedmewhetheri’deverheardofthesulimanmountainsupinthenorthwestofthecountry.hesaidthatthat’swheresolomonreallyhadhismines,hisdiamondmines.iaskedhimhowheknewthat.heansweredthatanoldwitchhadtoldhimallaboutit.shesaidthatthereweregreatwizardsamongthepeoplewholivedacrossthosemountains.thewizardshadlearntwhattheyknewfromwhitemenalongtimeago.theyalsohadthesecretofawonderfulmineof“brightstones”.h:sodidyougoandlookforthatplace?m:no,ididn’t.ilaughedatthisstoryatthetime,butididn’tforgetit.twentyyearslateriheardsomethingmoreaboutitfromamanpassingthrough.whenhelefthesaidthatifwewouldevermeetagainhewouldbetherichestmanintheworld.oneevening,whilesittinginfrontofmytent,isawafigure,apparentlythatofaeuropean,foritworeacoat,ingoutofthedesert.thefigurecreptalongonitshandsandknees,thenitgotupandwalkedafewyardsonitslegs,onlytofallandcrawlagain.whodoyousupposeitturnedouttobe?h:thatman,ofcourse.m:yes,orratherhisskeletonandalittleskin.“water!please,water!”hebegged.igavehimwaterwithalittlemilkinit,andthenhefellasleep.hehadafeverandinhisdreamshetalkedaboutsuliman’smountains,thediamonds,andthedesert.“thereitis!”hecried,pointingwithhislong,thinarm,“butishallneverreachit,never.noonewilleverreachit!”unit3listeningtextpart1(woman,australianaccent)bushfireanaustralianwomanistalkingonaradioprogrammeaboutherescapefromthebushfiresnearsydneyin1994.thefirstthingididwheniwokeupinthemorningwastowatchthetvnews.icouldseethatthesituationwasbad,andtheyshowedamapwherethefireswere.outsideinthegardenicouldn’tseethesun,astheskywasfullofsmoke.idecidedi’dbetterpreparetoleave.mydaughterswerestayingintownandmyhusbandwasabroad,soitwasuptometodecidewhattodo.ipackedasuitcaseofclothesandanothercaseofusefulthings.it’sdifficultinthiskindofsituationtoknowwhattotakewithyou.so,itookmypassportandmybankbookandallthemoneyihad.itookalsomydiary,myaddressbookandmycamera.finallyitookourweddingphotographs,asididn’twanttolosethose.outinthegardentheskywasgettingblacker,andthewindwhichhadbeenblowinghardfortwodayswasgettingstronger.icouldnowhearthesoundofthefirewhichwasonlyamileortwoaway.iwasexpectingthepolicetodrivebyandwarnpeople.suddenlyinoticedlittlepiecesofburningwoodfallingoutofthesky.theylandedonthegroundandstartedtoburnthegrass.ididn’twaitamomentlonger.igotintomycaranddrovedowntheroad.thesmokewasthickandattimesitwasdifficulttoseetheroad.animalswererunningacrosstheroad,tryingtoescapethefire.thereweredogs,afewhorses,andlotsofkangaroos.fivemilesdowntheroadicametoalongbridgeovertheriver.onceontheotherside,iknewiwassafe.part2(a=radioannouncer;maleorfemale,australianaccent)a:goodmorning,listeners.stillhotanddrytodayandwewouldliketoremindyouthatpeopleinthefollowingareasmayneedtoleavetheirhomes:greenhill,jonestown,andwesley.thefireisstillburningandweadviseyoutostaytunedformoreinformation.youmayhavetoleavetheareaifthewindschange,sopleasetakethefollowingactions:ifyouhaveacar,checkthatitisworkingproperlyandparkitwhereyoucaneasilygettoit.closealldoors,rollupthewindows,andleavethekeysinthecar.putemergencysuppliesinthecar.youwillneedwater,somefood,afirst-aidkit,aradioandaflashlight.putimportantdocuments,suchasyourbankbooksandpassports,inaplasticbag.makesurethatyouarewearinggoodclothes.putonheavyshoes,longpants,along-sleevedshirtandgloves.bringatowelthatyoucanusetoprotectyourface.closeallwindowsanddoorsinyourhouseandremovethecurtains.turnoffthegas.fillbuckets,bathtubs,andothercontainerswithwater.ifyouareaskedtoleavethehouse,youmustdosoimmediately.bringonlywhatyouneedandtellsomeonewhenyouleaveandwhereyouaregoing.trytostaycalmandlistentotheradioforinstructions.choosearoadthatlookssafeandkeepaneyeonthefireandthewind.unit4listeningtextg=guidev=visitorv:excuseme,canyoutellussomethingaboutthehistoryofkewgardens?g:botanicalgardenshavealonghistoryintheuk,beginningwiththefoundationoftheoxfordbotanicalgardenin1621.kewgardenswasdeveloped(built)inthe16thcentury.internationalimportancecameundertheguidanceofsirjosephbanks.hechangedkewfromaroyalcollectionofstrangeplantstoaseriousscientificresearchcentre.v:sowhatisthepurposeofkewgardenstoday?v:howcankewgardensreachthisgoal?g:kewwantstoachievethisby:developingaglobalcollectionofplantsandshowittothepublic;undertakingworldwideresearchintobotany;supportingtheconservationofplantsintheukandoverseas;andinformingandeducatingthewiderpublicaboutkewgardensandtheirwork.v:ifimayask,whatistheretoseeatkewgardens?g:kewhasmanyplantsinglasshousesandmorethan20differentspecializedgardens,suchastherockgarden,rosegarden,woodlandgardenandthewintergarden.v:ihearthattheyalsohaveagrassgarden.whatcanbeinterestingaboutthat?g:thegrassgardenshowsagreatnumberofdifferentgrasses.ineconomicsense,(economicallyspeaking)thegrassfamilyisoneofthemostimportantplantfamilies.itprovidesmostofourfood,feedsourcattleandprovidesbuildingmaterialssuchasbambooandstraw.onlythreedifferentbamboosareshowninthegrassgarden.morecanbefoundinthebamboogarden.over120speciesofbambooplantedthereefromallovertheworld.v:well,i’mafraidthat’sabitboringforme.ithinki’dhavealookattherosegarden.g:ofcourse,therosegardenattractsmostvisitors.ithas54rosebeds,eachcontainingadifferentvarietyofrose.therosesareallarrangedbythecolouroftheirflowers.shadesofredareclosesttothepalmhouse,whilethelighter-colouredroses,suchasthewhiteandyellowones,areplantedneartheedgeofthegarden.unit5listeningtextpart1harry,jenny,andbrianarediscussingtheiradvertisementplansforanewproduct.h=harry;j=jenny;b=brianb:sevenhundredandfiftythousandpounds.jenny,whatdoyousuggest?j:isuggestthatweusemainlytv,cinema,andprint.b:isee,magazinesandnewspapers.canyougiveusyourreasons?j:sure.first,ourproductlooksgood.soitwouldbeawasteofmoneytouseradio.second,ourproductmoveswell,anditmovesfast.soiwantpeopletoseeitontheroadsinourads,goingthroughthehills,thatkindofthing.b:whataboutadvertisingboards?j:no.iprefermagazinesandnewspapers,andwehaven’tgotthemoneytodoallthree.sopeoplewillseetheadontvandinthecinema.thenthey’llbeabletoreadaboutitwhenthey’resittingdown,readingtheirnewspapersandmagazines.h:igettheidea.thencustomerscanreadthedetailedproductinformationandchecktheprices.j:exactly.h:sonoadvertisingboards.whendoyouwanttheadvertisingtostart,brian?b:maythe1st.thatgivesusthreemonthstoruntoaugust1stwhenmostpeopleliketobuytheirnewcars.j:isee.sowe’retalkingaboutthreemonths.andhaveyouthoughtofaheadline?h:whataboutthisone:“thenewcentury505-thecaryoualwayspromisedyourself”?part2fourpeopleinanadvertisingfirmarediscussingafutureadvertisingprogramme.b=boba:ok.ourplanistoproduceanadvertisementforthisputerwhichismadebyoneofchina’sbiggestputerproducers,ffqputercorporation.anyideas?b:ithinkitwouldbeagoodideatohavementsfrompeoplewhoarealreadyusingit.theycanexpresstheirsatisfactionwiththeproduct.c:well,maybethat’snotsuchagoodidea.doyouthinkmanagerswanttoreadwhatusersthinkaboutanewpieceofofficeequipment?d:iagreewithbob.ithinkweshouldhaveapictureoftheputerandgiveadescriptionoftheproduct.b:i’mafraidican’tagreewithyou.that’sagoodwayofgivinginformation,butit’snotagoodwayofpersuadingpeople.foronething,it’sboring,andpeoplearen’tgoingtoreadanadthatlooksboring.foranotherthing,oneputerlooksverylikeanother.peoplearen’tgoingtorememberthenameoftheproduct.a:sowhatexactlyareyousuggesting?b:isuggestthatweaskusersofthismachinewhattheythinkaboutit.wecanphotographthemusingittoo.thenwecanputtheirmentsatthetopoftheadvertisementinbigprint.wecanbringinsomehumourtoo.peopleenjoyreadinghumorousads.d:thedisadvantagewithcarryingoutinterviewsisthatitmaytakealongtime.noproblem,wecandosometelephoneandemailinterviewswithourusers.c:howcanwefindoutwhoareusingtheseputers?a:easy.i’llaskthepanyforalistofrecentcustomers.unit6listeningtextr=reportero=mrsouyangmrsouyangrunsalittlerestaurantinsouthernyunnan.fiveyearsagoshelosteverythinginanearthquake.listentoherexperiencesandhowtherestaurantwasrebuilt.r:mrsouyang,fiveyearsagoaheavyearthquakestruckthisareaanddestroyedalmostallbuildingsinthisvillage.theearthquakealsohityourhousebadly.canyoutelluswhathappened?o:intwoweeks’timeitwillbeexactlyfiveyearsagothattheearthquakedestroyedourvillage.myhusbandandihadbeenrunningarestaurantforseveralyears.beforethat,hehadworkedasataxidriver.allhissavingshadgoneintotherestaurant,andonthatterribledayeverythingwasdestroyed.myhusbandwaskilledinthesecondshake.heshouldn’thavegonebackintotherestaurant.itwasastupidthingtodo,buthethoughthewouldhaveenoughtimetosaveafewimportantthings.r:whathappenedintheweeksafterthequakeandhowdidyougetoverit?o:imovedtoanearbyvillagewithmysister.thedeathofmyhusbandwasofcoursetheworstthing.icriedformanydays.iwishedihaddiedinhisplace.ilostallhopeofahappylife.r:whatmadeyoudecidetoreopentherestaurant?o:thereweretworeasons.firstofall,ihadtomakealiving.butmoreimportant,ididittohonourmyhusband.therestauranthadbeenhisgreatachievement.ifelttherewasnobetterwaytorememberhimthanbyreopeningtherestaurantandcontinuingthebusiness.r:wasiteasytoreopentherestaurant?r:doyouoftenthinkaboutthedisaster?unit7listeningtexts=cooko=oliverb=mrbumblenine-year-oldoliverlivesinaworkhousewheretheboysaregiventhreemealsofthinporridgeaday,withanoniontwiceaweek,andhalfarollonsundays.theworkhouseisrunbymrbumble,theheadmaster.theroominwhichtheboysarefed,isalargestonehall.thecook,assistedbyoneortwowomen,usesabigspoontopourtheporridgeintothebowls.onespoonful,andnomore--exceptonholidays,whentwospoonfulsandapieceofbreadaregiven.thebowlsneverneedtobewashed.theboyscleanthemwiththeirspoonstilltheyshineagain,andwhentheyhaveperformedthisoperation,whichnevertakesverylong,thespoonsbeingalmostaslargeasthebowls,theysitstaringatthecook.boysusuallyhavegoodappetites.olivertwistandhispanionssufferedthisslowstarvationforthreemonths.atlasttheygotsowildwithhunger,thatoneboy,whowastallforhisage,saidtohispanions,thatunlesshehadanotherbowlofporridgeperday,hewasafraidhemightsomenighteattheboysleepingnexttohim.hehadawild,hungryeye;andtheyallbelievedhim.theboysholdameeting,castinglotswhoshouldwalkuptothecookaftersupperthatevening,andaskformore.thelotfallstoolivertwist.theeveningarrived;theboystooktheirseats.thecookservedtheporridge,andtheboysprayed.theporridgewaseaten,andtheboyswhispertoeachother,andnodatoliver,whilehisnextneighbourspushhim.childasheis,heisdesperatewithhunger,andfeelsmiserable.herisesfromthetableandadvancingtothecook,bowlandspooninhand,hesays:o:please,sir,iwantsomemore.c:what!o:please,sir,iwantsomemore.thecookwasafat,healthyman;butheturnedverypale.amazed,hestaresatoliverbeforeaimingablowathisheadwiththelargespoonandscreamingfortheheadmaster.c:mr.bumble,ibegyourpardon,sir!olivertwisthasaskedformore!b:formore!calmdown,sir,andanswermeclearly.doiunderstandthatheaskedformore,afterhehadeatenhissupper?c:hedid,sir.b:thatboywillbehung.iknowthatboywillbehung.iwasnevermoreconvincedofanythinginmylife,thanthatthatboywilletobehung.unit8listeningtext1part1(female;sincethisissupposedtobeachinesestudent,isuggestthatweuseachinesepersonwhospeaksenglishwell.)a:iamaninternationalbusinessmajoratafinanceandeconomicsuniversity.mymajorcoursesfocusoninternationaltradeandfinance,butenglishisalsoveryimportant.manyofthetextbooksweuseareinenglishandsomeofourcoursesaretaughtinenglish,eitherbychineseprofessorsorvisitingforeignteachers.atfirst,itwasverydifficulttounderstandwhattheteachersweresaying.wetakemostofourcourseshereinchina,butwealsohavetheopportunitytostudyabroadforoneyear.ouruniversitycooperateswithuniversitiesineurope,newzealand,andtheusa.iwouldliketostudyineurope,perhapsingermanyorfrance,becauseibelievethattheeuropeanunionwillbeanimportantbusinesspartnerforchinainthefuture.ifistudyingermanyorfrance,icanalsolearnathirdlanguage,whichwouldbeveryuseful.themostdifficultthing,inmyopinion,istounderstandallthetechnicalterms.iwasprettygoodatenglishinmiddleschool,butweonlylearnedeverydayenglish.nowihavetoreadlongarticlesandtextbookchaptersthatdealwithdifficultissues.someofthewordsareonlyusedinbusiness,somostdictionariesdon’texplainwhattheymean.isometimesfellasifihadtwomajors-englishandbusiness.firstihavetounderstandwhatthetermsmeaninchinese,thenlearntheenglishwordsforthem.still,ilikemymajorandithinkthatitwillhelpmefindagoodjob.mydreamistoworkinachineseimportandexportpanyandtravelaroundtheworld.2part2(male;sincethisissupposedtobeachinesestudent,isuggestthatweuseachinesepersonwhospeaksenglishwell.)unit9listeningtextpart1in,theworldhealthorganisation,who,warnedofapossibleoutbreakofanotherseriousdiseasewhichmaybeevenmoredeadlythan____.thewhobelievesthatitislikelythatbirdfluwillspreadtohumanbeingsinthenextfewyears.ifitdoes,uptosevenmillion(seenote1)peoplecoulddiefromthedisease.diseaseslikebirdfluarecausedbyviruses,thatis,tinythingswhichchangeandbeemoredangerousovertime.whenanewtypeofamonviruschanges,itmaybeabletogetpastthebody’simmunesystem.ifthathappens,humansareingreatdangeruntilacureortreatmentbeesavailable.therehavealwaysbeenvirusesandpeoplehavealwaysgottensick,ofcourse,butaswesawwith(-?what’syourquestion?asexplainedinthenextsentence,____spreadveryquicklyetc.)____,thesituationismoredifficulttoday.peopletravelmorethaneverbefore,whichmeansthatthediseasescanspreadquicklyandacrosslargeareas-infactthewholeworld.scientistsarealreadyworkingondrugsthatwillpreventorlimittheeffectofanewvirus,buttheprocesstakestime.itisjustasimportanttomakesurethatcountries,especiallypoorcountries,arepreparedtodealwiththedisease.newdiseasesusuallyaffectpoorareasthemost,sowemusthelpdevelophealthcareinallcountries.part2therearethreekindsofvirusesthatcauseflu:a,b,andc.typeaisthevirusthatcausesbirdflu.asthenamesuggests,thevirusisusuallyfoundinbirds.itcanalsoinfecthumans,pigs,horsesandotheranimals.thereareseveraldifferentkindsofthetypeavirus.(onlytypeahasseveralkinds?yes.onlytypeahas“subtypes,”butbothbandcare“groups”ofviruses.ifyouthinkitisconfusing,orunnecessary,youcandeletethestc.influenzatypebunlikeinfluenzaaviruses,thesevirusesarenotclassifiedaccordingtosubtype.influenzatypecthesevirusesarenotclassifiedaccordingtosubtype.)typebvirusesareusuallyfoundonlyinhumanbeings.theyhavebeenresponsibleforsomefluoutbreaks,buttheyarenotconsideredasdangerousastypeaviruses.typecvirusesarenotconsideredveryserious.theyarefoundinhumans,butdonotcauseseriousillnesses.themostdangerousthingaboutthefluvirusesisthattheychange.whenhumansareinfectedwithavirus,thebodydevelopsadefenseforit.ifvirusesdidn’tchange,wewouldnothavetheworryaboutthevirusesweknow.unfortunately,everynewgenerationofvirusisslightlydifferentfromtheolderones.thatmeansthatourbodydoesn’trecognisethevirusandcan’tprotectitselffromit.thiskindofchangeisnotveryfastanddoctorsandscientistscanchangethemedicinesweusetohelppreventthevirusfromcausingseriousillness.theotherkindofchange,however,happensveryquicklyandismoreserious.ifaviruschangesinthiswayandbeesanewtypeofvirus,thebodyisdefenceless.theviruscanspreadeasilyfromonepersontoanotherandreachfaracrosstheworld.fortunately,thiskindofchangedoesn’thappenveryoften.thewhonowbelievesthatanew,dangerousviruswillappearsoonandthatwemustpreparethebestwecan.wemustimprovehealthcareinallcountriesandcooperatewitheachothersothatwecandiscoverandpreventnewviruses.unit10listeningtextg:weletothemarktwainhouseandmuseum.marktwainisamerica’smostfamouswriter.doyouknowanybookswrittenbytwain?s1:ehm,theadventuresoftomsawyerandeh,theadventuresofhuckleberryfinn.m:isthehousestillthewayitwaswhentwainlivedhere?g:yes.thehousehasbeenrestoredtothewayitwaswhentwainlivedhere,between1881and1891.m:howlongwillthetourtake?g:thetourtakesabouttwohours,andthegroupmuststaytogether.please,don’ttouchanything.m:oh,canyoumakeitabitshorter?idon’tthinkthekidswillstayquietforsuchalongtime.g:fine.enteringthehousefromthesouth,wearenowinthehall.immediatelyontherightisthedrawingroom,aratherformalroom,wheretwainreceivedguests.thedoorontheleftleadstotheguestbedroom.thetwodoorsinfrontleadtotheroomsonthenorthsideofthehouse:thediningroomthroughthedoorontheright,andthelibrarythroughthedoorontheleft.let’sfirsttakealookinthelibrary.s2:ithinkidon’twanttoseethelibrary.m:shutup,dave.s1:look,they’vegotgreenhouse.g:yes.thesmallroomonthewestside,offthelibrarywasfilledwithlarge,greenplants.twain’sdaughterscalleditthejungle.fromthelibrary,wecanpassontothediningroom.twainandhisfamilyhadmostoftheirmealshere.thekitchenislocatedoffthediningroom,tothenorth.m:canwehavealookatthekitchen,please?g:i’mafraidthekitchenisclosedtothepublicuntilthesummerofnextyear.m:oh,whatapity.g:let’sgoandhavealookupstairs.m:ithinkthechildrenaregettingtired.whatistheretobeseenupstairs?g:thesecondfloorhasthreebedrooms,anotherguestroomandtheschoolroom.thethirdflo