Unit9ForcesofNatureGrammarinuse课件仁爱科普版英语八年级下册

Unit9ForcesofNatureGrammarinuse（仁爱版2024）八年级下Learningobjectives0LeadinPresentation2PracticeProduction4SummaryAssessment6Homework1357Bytheendofthelesson,Iwillbeableto...123masterdisastercompoundwordsincontext;usecomparative/superlativeadverbsforemergencycomparisons;describedisasterswithcompoundwordsandadverbs.00LearningobjectivesLookandsay.What’sthis?It’sanearth.What’s

this?It’saquake.What’sthis?It’sanearthquake.Lookandsay.What’sthis?It’ssnow.What’sthis?It’sastorm.What’sthis?It’sasnowstorm.Lookandsay.What’sthis?It’sthunder.What’sthis?It’sastorm.What’sthis?It’sathunderstorm.Lookatthepicturesandreadthesentences.Payattentiontothecompoundwordsinbold.Asnowstormisastormwithstrongwindsandalotofsnow.Athunderstormisastormwiththunderandlightning.Anearthquakeisaquakeofthesurfaceoftheearth.snow+stormsnowstormthunder+stormearth+quakethunderstormearthquakeActivity1Lookandread.Presentation02compoundwords(合成词)Presentation02Lookandguess.flashlight

flash

(闪光)

light

(光)能发出闪光的光

sand

(沙)

storm

(风暴)

sandstorm

带着沙子的风暴Presentation02Lookandguess.

after

(之后)

shock

(震动)aftershock

主震之后的余震

market

(市场)

supermarket

超市

super

(超级)Activity2

Fillintheblankswiththegivenwordsinthebox.flashlightsandstormaftershocksupermarket1.You’dbetterbringa(n)__________ifyouneedtowalkonadarkroad.2.Peoplelivinginthedesertknowhowtokeepthemselvessafewhena(n)__________comes.3.Weshouldbuycookedfoodandcleanwaterinthe_____________beforesnowstorm.4.Astrong__________oftheearthquakehappenedabout40minuteslater,and

itcausedmoreharmtothearea.flashlightsandstormsupermarketaftershockFillintheblanks.Presentation02Lookandlearn.Presentation02构成方式：由两个或多个基础单词拼接而成，例如：book（书）+

case（盒子）→

bookcase（书架）sun（太阳）+

flower（花）→

sunflower（向日葵）意义整合：合成词的含义并非原词意义的简单叠加，而是形成新的特定概念。例如：butter（黄油）+

fly（飞）→

butterfly（蝴蝶，并非“黄油飞”）break（打破）+

fast（快）→

breakfast（早餐，指“打破食”）compoundwords(合成词)Lookandlearn.Presentation02语法功能：作为单一词汇使用，有独立的词性。例如：名词：notebook（笔记本）、classroom（教室）动词：babysit（照看婴儿）、sunbathe（日光浴）形容词：snow-white（雪白的）、part-time（兼职的）compoundwords(合成词)Activity3Readthetextandguessthemeaningoftheunderlinedwords.Withfewergrasslandsinsomeareas,thesandstormappearsmoreoften.Sandstormscancoverfarmlands,causetrafficaccidents,andharmhumanhealth.Peopleshouldtakeactionintimetofightagainstsandstorms.Or,thesandstormmaybecomeaworldwideproblem.Readandguess.Presentation02grass+land=grassland(草地)farm+land=farmland(农田)world+wide=worldwideLookandthink.Presentation02ComparativeandsuperlativeadverbsQ:Whatwordsdidyouhearinthesong?Whatdotheydescribe?Lookandsay.Whenafirebreaksout,wemustrun______(fast)totheexit.fasterTips：火灾发生时，我们必须更快地跑向出口。Lookandsay.Firefighterswork______________(carefully)thanordinarypeopletosavelives.morecarefullyTips：消防员工作比普通人更认真。Lookandsay.Ofallthevolunteers,LiMingarrived________________(early)attheshelter.(the)earliestTips：在所有志愿者中，李明到得最早。Lookandsay.Weneedtowalk_________(far)tofindhighergroundduringaflood.fartherTips：洪水时我们要走更远去找高地。Readandthink.Presentation02Whenafirebreaksout,wemustrun___________(fast)totheexit.Firefighterswork________________(carefully)thanordinarypeopletosavelives.Ofallthevolunteers,LiMingarrived___________(early)attheshelter.Weneedtowalk___________(far)tofindhighergroundduringaflood.fastermorecarefully

(the)earliestfarther

Readthesentencesandthinkabouttheruleshiddeninthem.Readtheconversation.Payattentiontothewordsinbold.Willtherebeadisasterpreventiontrainingatschooltomorrow?Noproblem!Whatshouldweweartoschool?Yes.Wemustarriveearlierthanusual.We’dbetterwearsportsshoes.Wecanperform

bestinsportsshoes.earlier是early的比较级best是well的最高级Activity1

Readtheconversation.Presentation02Readtheconversation.Payattentiontothewordsinbold.Willtherebeadisasterpreventiontrainingatschooltomorrow?Noproblem!Whatshouldweweartoschool?Yes.Wemustarriveearlierthanusual.We’dbetterwearsportsshoes.Wecanperform

bestinsportsshoes.earlier是early的比较级best是well的最高级Activity1

Pairwork.Presentation02Comparativeandsuperlativeadverbs定义：英语中，副词有三个等级，即原级、比较级和最高级。1.副词比较等级的构成副词比较等级的规则变化与形容词比较等级的规则变化大致相同。规则变化：原级

比较级

最高级fastfasterfastesthardharderhardestlatelaterlatestearlyearlierearliestcarefully morecarefully (the)mostcarefully Lookandlearn.Presentation02单音节词：直接加-er/-est多音节词：前面加more/most以-e结尾的单音节词，直接加-r/-st以-y结尾：变y为i，再加-er/-estComparativeandsuperlativeadverbs下列副词的比较等级为不规则变化原级

比较级

最高级badlyworseworstfarfarther/furtherfarthest/furthestlittlelessleastmuchmoremostwellbetterbestLookandlearn.Presentation02abandon,abandon…2.副词比较等级的用法副词比较等级的用法与形容词比较等级的用法基本相同。（1）原级

表示比较双方程度相同时，常用“as+副词原级+as”结构，意为“……和……一样”

。

例如：Iwanttoliveashappilyasbefore.我想和以前一样快乐地生活。表示双方程度不同时，常用“notas/so+副词原级+as”结构，意为“……不如……”。例如：Kangkangdoesn’tdrawas/socarefullyasLiHua.康康画画不如李华认真ComparativeandsuperlativeadverbsLookandlearn.Presentation02（2）比较级两者之间比较时，常用“副词比较级+than”结构，意为“比……更……”。例如：LiHuacutsmorefinelythanher.李华比她切得更细。表示否定的比较级可用“less+副词原级+than”结构，表示“……不如……”。例如：HespeakslessloudlythanIdo.他说话声音没有我大。（3）最高级

三者或三者以上比较时，常用“the+副词最高级+in/of...（比较范围）”结构，意为“某人（或某物）在某范围内最……”。副词最高级前可省去the。例如：LinTaojumps(the)highestinourclass.

林涛在我们班里跳得最高。

LiFengsings(the)bestofall.李峰是所有人中唱得最好的。ComparativeandsuperlativeadverbsLookandlearn.Presentation023.副词比较等级中的注意事项（1）在同级比较结构中，第一个as前可加half、twice、threetimes等词来修饰，表示倍数关系。例如：LiuMeijumpstwiceasfarashersister.刘梅跳得是她姐姐的两倍远。（2）副词的比较级前可用much、alot、alittle、abit、even、still、far等词来修饰，表示不同程度。例如：Sheplayedthepianomuchmorewonderfullythanyou.

她钢琴弹得比你棒得多。ComparativeandsuperlativeadverbsLookandlearn.Presentation023.副词比较等级中的注意事项（3）借助other、else或否定词，比较级形式可用来表示最高级概念。例如：Nobodyrunsfasterthanhim.没人跑得比他快。（4）“the+比较级……，the+比较级……”表示“越……，越……”。例如：Themoreyouread,themoreyoulearn.你读书越多，学到的知识就越多。（5）“比较级+and+比较级”表示“越来越……”。例如：Itisrainingmoreandmoreheavily.雨越下越大。ComparativeandsuperlativeadverbsLookandlearn.Presentation021.写出下列副词的比较级和最高级形式：late→________→__________badly→________→________hard→__________→________early→________→__________well→__________→________far→________/____________→________/________laterlatestworseworstearlierearliestbetterbestharderhardestfartherfurtherfarthestfurthestComparativeandsuperlativeadverbsLookandfill.Practice032.用括号内单词的适当形式填空：Sheworks_______(hard)thanherbrother,butherfatherworks________(hard)inthefamily.Hearrived________(early)thanme,butshearrived_________(early)intheclass.Tomruns____________(quick)thanJack,butSamruns______________(quick)ofall.Thebirdsings__________(loud)thanthefrog,butthealarmrings__________(loud)ofall.morequicklymostquicklyharderhardestmoreloudlymostloudlyearlierearliestComparativeandsuperlativeadverbsLookandfill.Tips：farther和farthest指物理距离的更远和最远；further和furthest指抽象程度上的延伸，表示更进一步，更深层次和最深层次。Practice03Completethetableandlearnhowtousethecomparativeandsuperlativeadverbs.AdverbComparativeSuperlativefastTheforestfirespreadfasterthanwethought.Theguardsran(the)fastesttoputoutthefire.carefullyHedrives_____________thanIdo.XiaFengchecksthewindows___________________.farWeneedtowalk_______tokeepawayfromtheflood.Thefloodwaterreached_______________intotheeasternpartofthecityaftertheheavyrain..morecarefully(the)mostcarefullyfarther(the)farthestActivity2

Completethetable.Practice03Activity3

Completethetextwiththecorrectformofthegivenwords.badfarhardhighterribleOnNovember1st,2012,HurricaneSandysweptthroughourtown.Istillrememberhowterriblethesuperstormwas.Welived________awayfromthebeachthanmostofourneighbors,andourhousestoodonahillside.Ithoughtweweresafe.Butthewindwasblowing__________everyminuteandthewaveskeptreaching__________.Soon,thestormarrivedandtookawaytheroofofourhouse.Ithitthebeachsideofthetown______________.Nearlyeverythingtherewasgone.Itisa_______painfulexperienceformeandIstillcan’tgetoverit.fartherharder(the)worstterriblyhigherActivity3

Completethetext.Practice03Production04可用核心副词原级：fast,carefully,early,far,quickly,well,loudly比较级：faster,morecarefully,earlier,farther/further,morequickly,better,moreloudly最高级：(the)fastest,(the)mostcarefully,(the)earliest,(the)farthest/furthest,(the)mostquickly,(the)best,(the)mostloudly句型提示（可仿写）比较级：Weneedtoarriveearlierthanusualforthetraining.Herunsfasterthanhisclassmatestothesafearea.最高级：Shewalks(the)farthesttogetawayfromthebuilding.Theteamworks(the)mostcarefullytocheckthewindows.围绕「防灾演练/自然灾害」主题，写一段5–8句的短文或3–5轮对话必须至少使用3个副词比较级和2个副词最高级。

AdverbChallenge:DisasterSafetyStory.ShowtimeTalkclearly(内容清晰)Pronunciation(发音标准)Bodylanguage(使用肢体语言)Fluently(流利的)Reasonable(理由合理)Gradeandshare:一、根据句意及提示填空。Aviolent_____________(雷暴)withheavyrainhitthecitylastnight.Weshouldprepareenoughfoodandwaterinthe_____________(超市)beforethesnowstormcomes.Astrong_________(沙尘暴)cancovertheskyandmakeithardtoseetheroadclearly.Weneedtostayawayfromthebuildingafterthe_____________(地震),becauseadangerousaftershockmaycome.Ifyouhavetowalkoutsideatnight,a_________(手电筒)canhelpyou.ThephrasewehavelearnedSummary05thunderstormsupermarketsandstormearthquakeflashlight二、用副词的比较级和最高级规则及所给词的正确形式填空。Therescueteamran_________(fast)thananyoneelsetosavethepeopletrappedintheflood.Youshouldlistentothesafetywarning_____________(carefully)thanbeforewhenadisastercomes.Ofallthevolunteers,theyoungmanclimbed_____________(high)tosavethechildonthetree.Thewindblew_________(hard)atmidnight,andwecouldhearthesoundclearly.Amongallthenaturaldisasters,thehurricanehitthistown_________(bad)inhistory.ThephrasewehavelearnedSummary05fastermorecarefully(the)highestharder(the)worst三、短语翻译：雷暴天气____________________________地震余震____________________________防灾训练____________________________全球性问题____________________________应急自救____________________________ThephrasewehavelearnedSummary05thunderstormweatherearthquakeaftershockdisasterpreventiontrainingworldwideproblememergency