Unit6EarthandBeyond（GrammarinUse）课件仁爱科普版英语八年级上册

EarthandBeyondUnit6GrammarinUse英语仁爱科普版八年级上册Learningobjectives通过本课时的学习，学生能够：1.理解并掌握含有后缀-ness的名词的形式和意义；2.理解并掌握形容词比较级和最高级的用法以及核心变化规则；3.在真实的语境中准确应用含有后缀-ness的名词以及形容词的比较级

和最高级形式；4.激发对宇宙探索和科学知识的兴趣，感受英语与学科知识的关联。

重点

重点Lookatthepicturesandanswersomequestions.LookandanswerWhatqualitiesdoyouthinkscientistsshouldhave?Whatconditionsshouldscientistsmeetiftheywanttoliveandworkinspace?Whatadjectiveswouldyouusetodescribethesestars?Theyshouldbecareful

andresponsible.Theyshouldhaveafitbodyandmind.Theyarebrightandbeautiful.Readthesentencesandpayattentiontothewordsinbold.Then,answerthequestion.ReadandanswerCarefulnessandresponsiblityplayanimportantroleinscientificexploration.Fitnessofthebodyandmindisofkeyimportanceforscientiststoloveandworkinspace.Thebrightnessofastarisrelatedtoitssize.Thelarger,thebrighter.Whatdothewordsinboldhaveincommon?Theyallendwiththesuffix-ness.careful+2.____

carefulness1.______fitness3.______brightnesskind4.________happy5.________nessfitbrightkindnessNounAdjectiveness(Suffix)WorkouttherulesReadthewordsandfillinthechart.Thesuffix-nessisaddedtoadjectivestotransformthemintonouns,indicatingqualityorstate.Foradjectivesendingin“aconsonant+y”,wechangeyto___first,thenadd-nesstoformanoun.ihappinessSometimesweneedtochangetheendingoftheadjectivewhenweaddthesuffix.Couldyouthinkofmorenounswith“-ness”?ReadandfillThe_____________(great)oftheuniversemakesusrealizehowsmallourplanetEarthis.The_____________(endless)oftheuniverseraisesmanyquestionsaboutitsoriginandfuture.Scientistsoftentalkaboutthe_____________(calm)oftheuniversebeyondoursolarsystem.The_____________(empty)ofspacebetweengalaxiescanmaketheuniversefeellonely.The_____________(cold)ofspacemakesitdifficultforhumanstosurvivewithoutprotection.Readthesentencesandfillintheblankswiththecorrectformofthegivenwords.greatnessendlessnesscalmnessemptinesscoldness1.Thehighcostisabig__________inspaceexploration.2.Thedevelopmentofthespaceindustrywillbringmore__________andcreatemorejobsindifferentareas.3.Somanystarsshineinthe__________.Whatabeautifulnight!4.Naturecanfillourliveswithrealjoy,peaceand

__________.Readthesentencesandfillintheblankswiththewordsinthebox.businessweaknesshappinessdarknessReadandfillbusinessweaknesshappinessdarknessReadandcompleteReadthetextandcompleteitwiththewordsinthebox.VenusandMercuryaretwooftheclosestplanetstotheSun.Becauseofits____________totheSunandits____________insize,MercuryisdifficultforustoseeonEarth.Venus,ontheotherhand,isknownforits____________andit’sbeautiful.PeoplecanseeitatnightonEarth.VenusisthehottestplanetwhilethesurfacetemperatureonMercurycandropdownto-173℃atnight.Its____________isduetoitsthinair.coldnessclosenessbrightnesssmallnesscoldness

smallnessbrightnessclosenessReadandanswerReadtheconversationandpayattentiontothewordsinbold.Thenanswerthequestion.WhatarethedifferencesbetweenMercuryandEarth?MercuryissmallerthanEarthanditisclosertotheSunthanEarth.Yes,Iknowthat!ItistheclosestplanettotheSun.Yes,soit’salsomuchhotterthanEarth.Howcanwecomparedifferentitems?Usingcomparative(比较级的)andsuperlative(最高级的)adjectives.comparativeadjectivessuperlativeadjectiveReadthesentencesandworkouttherules.Tick(√)theone(s)youagreewithandfillintheblankswiththerightinformation.Read,tickandfill1.MercuryissmallerthanEarthanditisclosertotheSunthanEarth.2.Yes,soit’salsomuchhotterthanEarth.3.Jupiterismoremassivethananyoftheothersevenplanetsbecauseofitshugesize.Whenwecompare

twopeopleorthings

morethantwopeopleorthings,weusecomparativeadjectiveslikesmaller,closer,

and

.Weoftenuse_______aftercomparativeadjectivestointroducetheobjectofcomparison.hottermoremassivethanReadthesentencesandworkouttherules.Fillintheblankswiththerightinformation.Readandfill1.MercuryandVenusaremuchhotterthanEarth,whileJupiter,UranusandNeptunearemuchcolder.2.Thelarger,thebrighter.Whenwewanttoemphasizethedegreeofthecomparison,weoftenusealittle,alotor_______beforethecomparativeadjective.“The+comparative...,___________________”isusedtoshowthatonechangecausesanotherchange.Itoftensuggestsoneincreasecausesanotherincrease,oronedecreasecausesanotherdecrease.muchthe+comparative...Readthesentencesandworkouttherules.Tick(√)theone(s)youagreewithandfillintheblankswiththerightinformation.Read,tickandfill1.ItistheclosestplanettotheSun.2.Saturnisthemostbeautifulplanetinmanypeople’eyes,thankstoitscolorfulrings. 3.Earthisthebestplanetforlifebecauseithaswater,air,andasuitabletemperature.Whenwecompare

twopeopleorthings

morethantwopeopleorthings,weusesuperlativeadjectivesliketheclosest,

and

.Weoftenuse_______beforesuperlatives.themostbeautifulthebesttheReadthesentencesagainandcirclethewordsorphrasesthatcandeterminethesuperlativeadjectives.Readandcircle1.Inthesolarsystem,Jupiteristhelargestplanet,withadiameterofabout140,000kilometers2.AsforEarth,itisthethirdclosest,closerthanMarsbutfartherawaythanVenusandMercury.3.VenusandMercuryaretwooftheclosestplanetstotheSun.in+范围场所/群体the+序数词+形容词最高级Doyouknowsomeotherexpressionsthatcanhelpdeterminethesuperlativeadjectives?of+同类人/物的复数；byfar(……得多；明显地)...one/two/...of+the+形容词最高级+复数名词ThinkandwriteThinkandwritedownthebaseformsofthecomparativeandsuperlativeadjectives.BaseformComparativeSuperlative________smartersmartest________nicernicest________prettierprettiest________biggerbiggest________morepleasantmostpleasant________betterbestsmartniceprettybigpleasantgood/wellReadandcompleteWorkouttherulesforformingregularformsofcomparativeandsuperlativeadjectivesandcompletethechart.RulesBaseformsComparativeandsuperlativeformsone-syllablewordsoldwords

endingwithavowel+a

consonantfatwords

endingwithewidewords

endingwithaconsonant

+yhappytwo-syllable

(orlonger)wordsinteresting+er;+estolder;oldestdoubletheconsonant+er;+estfatter;fattest+r;+stwider;widestchangeytoi+er;+esthappier;happiestaddmoreorthemostinfrontofthewordsmoreinteresting;mostinterestingReadandcompleteSomecomparativeandsuperlativeadjectiveshaveirregularforms.Readthefollowingchartandcompleteit.Commonirregularformsofcomparativeandsuperlativeadjectivescomparativeformsuperlativeformsgood/wellbad/illfarlittlemany/muchbetterbestworseworstfarther/furtherfarthest/furthestlessleastmoremostThinkandwriteWritedownthecomparativeandsuperlativeformsofthefollowingadjectives.sad_________________hot_________________late_________________dry_________________far_________________6.easy_________________

7.soft_________________

8.bright_________________9.large_________________10.wonderful

______________

______________sadderhottestmorewonderfullargestlargerbrightestbrightersoftestsoftereasiesteasiermostwonderfullaterdriestdrierfarthest/furthestfarther/furtherlatesthottersaddestReadandfillReadthetextandfillintheblankswiththecorrectformofthegivenwords.TheDeathValleyisknownasthe________(hot)placeontheearthandthe________(dry)placeinNorthAmerica.In1913,the________(high)airtemperatureof134℉(56.7℃)reachedarecordhere.Insummer,theaveragerainfallintheDeathValleyis________(little)than5cm.Butwinterandspringare________(wet)andtheweatherismorecomfortable.Higherplacesare___