Unit1词汇课件牛津上海版八年级英语下册

8BU1TreesHavefun！ALet’sbegin!Words1.average(adj.)平均的；普通的词组1：onaverage平均；通常e.g.4,000peopleayeardieofthisdiseaseonaverage.词组2：below/aboveaverage平均以下/上anaveragestudent一名普通学生averageheight平均身高beofaverageheight中等身高:【拓展】average(n.)平均数Words2.fighter(n.)[c]斗士；战士e.g.Thepolicefinallyarrestedthosefighters.【拓展】(1)fight(n.)[c]打架，战斗e.g.Thetwoboyshadafight.a/thefightagainststh.e.g.Wearebeginningtobreakthroughinthefightagainstcancer.(2)fight(v.)(fought/fɔ:t/;fought)打仗；打架；争论fightsb./sth.与...作斗争fightwithsb.和某人打架fightforsth.为...而斗争e.g.Theheroesallfoughtforfreedom.Words3.fact(n.)事实[c]；现实[u]；实际[u]e.g.ItisafactthatmyEnglishspeakingskillsaregettingbetter.e.g.Wehavetofacethefactthattheearthispolluted.词组：infact事实是；事实上e.g.Shedoesn'tlikehimmuch-infact,Ithinkshehateshim!=asamatteroffact【近义】truth(n.)事实【反义】fiction(n.)虚构的事【拓展】factor(n.)因素；要素factual(adj.)事实的：factualinformation事实信息Words4.interest(n.)兴趣(v.)使...感兴趣interested(adj.)感兴趣的-interesting(adj.)有趣的词组1：beinterestedinsth./doingsth.=showinterestinsth./doingsth.=bekeenonsth./doingsth.=befondofsth./doingsth.词组2：keepsb.interestedinsth./doingsth.使某人对...感兴趣词组3：placesofinterest名胜古迹=touristattractionsWords5.suppose(v.)think(sth.tobetrue)认为；推想；假设e.g.Isupposeyou’reright.e.g.Scientistssupposedthattheearthwillrunoutofitsresourceinthe20years.词组：besupposedtodosth.=shoulddosth.【注意】suppose（that），表示猜测、认为，若主句是否定形式，用法同guess/think/believe，且主语为第一人称，应将否定前移到主句；中文翻译相反；反义疑问句反在从句。e.g.Idon’tsupposehisanswerisright.我认为他的答案是不正确的。Idon’tsupposehisanswerisright,isit?Words6.breathe(v.)/briːð/takeinorletoutairthroughyournoseandmouth呼吸e.g.Theairwassocoldthatwecouldhardlybreathe．词组：breathein吸入（气体）=takeinbreatheout呼出（气体）e.g.Humanstakeinoxygenandbreatheoutcarbondioxide．【拓展】breath/breθ/(n.)呼吸takeadeepbreath深呼吸=breathedeeplybeoutofbreath上气不接下气；喘不过气来holdone’sbreath屏住某人的呼吸1.Mostpeopledon’trealizethattheyare________pollutedair.3.Hisillnessistheresultof_____inharmfulgasesovermanyyears.4.Treesproduceenoughoxygenforusto______(breath).5.Itcanhelpyoucalmdownto______deeply.(breath)Exercise(breath)1.Mostpeopledon’trealizethattheyare________pollutedair.2.Hisillnessistheresultof_____inharmfulgasesovermanyyears.3.Treesproduceenoughoxygenforusto______.4.Itcanhelpyoucalmdownto______deeply.breathebreathbreathingbreatheWords7.pure(adj.)纯的，纯粹的；纯净的e.g.Weneedpurewater.e.g.Thewaterinmountainriversisusuallypure.流经山间的河水通常是纯净的。e.g.ShespeakspureFrench.她讲一口纯正的法语。【拓展】purity(n.)纯洁purely(adv.)=only/completely仅仅；完全e.g.Isawtheletterpurelybychance.purify(v.)净化e.g.purifywaterWords9.release(v.)释放；放出（气体）；宣泄（情感）=letout=setfree=giveoffe.g.releasetheprisoners释放囚犯词组：releaseinto释放到...中e.g.releaseoxygenintotheair【拓展】release(n.)释放；解脱e.g.Sheexpectsanearlyreleasefromprison.她希望早一点儿出狱。=Sheexpectstobereleasedearlyfromprison.8.gas(n.)气体[c/u]；煤气[u]；汽油[u]e.g.severaldifferentkindsofgase.g.greenhousegas温室气体Words10.produce(v.)①生产=make/grow；②使...产生，导致=bringaboute.g.IhopeourcompanywillproducesomethinglikeHuaweiP50inthenearestfuture.e.g.Themedicineproducesafeelingofsleepiness.【拓展】product(n.)产品；产物e.g.dairy/meatproductsproduction(n.)生产；产量e.g.Thefactoryproducesmanyniceproductseveryyear.Theproductionisrisingsharply.producer(n.)生产商；制片人e.g.FrenchwineproducerWords11.living(adj.)活着的（作定语，放在名词前）(n.)[u]生活方式wayofliving【拓展】alive(adj.)活着的（做表语，放在名词后或动词后）：keep/stayalivelive(adj.)直播的：aliveskatingrace(v.)生存，生活：liveabusylifelively(adj.)活泼的：alivelyclassroom/picture12.scientist(n.)科学家【拓展】science(n.)科学：sciencebookscientific(adj.)科学的scientificstudy/research科学研究Words13.natural(adj.)/ˈnætʃrəl/自然的；自然界的naturaldisaster/resources自然灾害/资源e.g.Itisnaturalforacattocatchmice.猫捉老鼠是本能。【拓展】nature(n.)/ˈneɪtʃə(r)/自然，自然界；天性lawsofnature自然规律e.g.Weneedtobeclosertothenature.e.g.Sheisverysensitivebynature.她生性很敏感。naturally(adv.)顺理成章地，自然地；天然地；天生地e.g.Sheisnaturallyverysensitive.Words14.warn(v.)warnsb.(not)todosth.warnsb.of/aboutsth.警告某人某事【拓展】warning(n.)warningofsth./doingsth.15.protect…bydoingsth.通过…保护...e.g.Theoldmanprotectthewildanimalsbydrivingawaythehunters.

protectsb./sth.fromsth./doingsth....保护…远离stop/keep/prevent…fromsth./doingsth.阻止...远离save…from…从…中拯救...Words16.chemical(n.)[c]化学药剂；农药produceachemical产生一种化学成分e.g.Chemicalscankilltheinsectsinthefields.【拓展】chemical(adj.)化学的：chemicalelements化学元素；chemicalreactions化学反应chemistry(n.)化学：chemistryteacher/laboratory/experimentschemist(n.)化学家；药剂师17.nasty(adj.)=unpleasant极差的；令人厌恶的nastier-nastiestanastyhabit/temper坏习惯/脾气e.g.Somepeoplethinkdurianhasanastytaste.Words18.join(v.)connect连接joinAto/andB把A和B接起来join…together将…连在一起e.g.Thetreesnearbycanjointheirrootstogether.【区分】join=becomeamemberof…+organizationtakepartin+activity=joinin=participateinenterfor报名参加：enterforarace/anEnglishcompetition/anexaminationattend（需点名的）活动：attendclass/ameeting/alecture/awedding...Words19.communicate(v.)①交流；communicatewithsb.与某人交流e.g.Westudentsshouldcommunicatewithourparents.②传达（想法、感情）communicatesth.tosb.把...传达给某人e.g.Hewaseagertocommunicatehisideastohisgroup.【拓展】communication(n.)[u]沟通；通讯communicationtechnology/system通讯技术/系统【区别】exchange&communicateexchangestudent/ideas/information/gifts交换生/交流想法/交换信息/交换礼物communicateinformation传达消息Words20.burn(v.)-burnt-burnt/burned-burned燃烧；着火；使烧焦/烫伤e.g.Peopleusedtoburnanoillamptogetlight.词组：burnupsth.烧毁burnoutsth./sb.燃尽；用尽beburntout被燃尽；消耗殆尽e.g.Thebuildingiscompletelyburntout.e.g.IwasburntoutafterIfinishedthework.【拓展】burnt/burned(adj.)烧焦的；烫伤的