Unit;6;The;Earth’s;Atmosphere.docx

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1、Unit;6;The;Earths;AtmOSPhereunit6theearth,satmosphere一、教学内容：unit6theearth,satmosphere二、教学目标：学问目标：娴熟驾驭本单元的单词、短语、句型和语法。实力目标：运用本单元所学的学问，描述制造、组成等方面。三、教学重难点：动词的被动语态课文分析及理解四、语法工程：动词的被动语态五、本单元的重点学问：1.单词：娴熟驾驭本单元后单词的音、形、意2.词组：1)bemadefrom由制造2)bemadeof由制造3)tinydropsofwater小水滴4)reducewaste削减奢侈5)20milesthick20英

2、里厚6)protect.from爱惜免遭7)bemadeupof由组成8)threefourthsofthegases的气体9)dependon依靠10)stayalive生存11)beusedto习惯于12)drawWorIdWideattention吸引世界留意13)blow.away吹走14)befullof充溢15)beusedfor用于做某事句子：1)cloudsaremadeoftinydropswater.云是由小水滴构成的。2)theatmospheresurroundstheearthlikeablanket.大气层像毯子一样包袱着地球。3)theatmosphereprot

3、ectstheearthfromthesun,sheat.大气层爱惜地球免遭太阳的炙烤。4)theairintheatmosphereismadeupofdustandgases.大气层中的空气是由尘土和各种气体组成。5)morethanthree-fourthsofgasisnitrogen.多于四分之三的气体是氮气。6)plantsdependonnitrogentostayalive.植物依靠氮气来生存o7)morethanthree-fourthsofthegasisnitrogen.气体中四分之三的气体都是氮气。8)peoplewhotraveltothemountainsfindi

4、thardertobreathe.到山上旅行的人发觉这里呼吸比拟困难。9)bigcitiesarefullofcars.大城市里都是汽车。IO)theyareusedforbusinessandpleasure.他们是用来商务和消遣的。11)somethingshouldbedoneabouttheuseofcarsinordertohavecleanerair.为了得到更清洁的空气，应当就汽车的运用问题接受措施。六、本单元重点学问讲解：1.theshipismadefromwastematerials,thet-shirtismadeofcotton.例如：thebookismadeofpa

5、perandpaperismadefromwood.theglassismadeofglassandglassismadefromsio2.2.theairthatsurroundstheearthiscalledtheatmosphere.包围地球的空气被称为大气。becalled被称为同义词:benamed例如：theboyiscalledwdaniuwbyhisclassmates,themachineiscalled“washingmachine.thatcitywillbecalledwatercity”.3.itsurroundstheearthlikeablanket20mile

6、sthick.20milesthick20英里厚数字+单位+形容词例如：1.7metrestall一米七高6metreswide六米宽20kilometresaway20公里远ourclassroomisthreemetrestall,7metreslongand6metreswide.theyellowriveris5000kilometreslong,itisthesecondlongestriverinchina.（3）theriverisabout20metresdeep,youmustn,tswiminit.itstoodangerous!【典型例题】（1）theruleris（20

7、厘米长）,thebookis（5厘米厚）.theholeisabout（50米深）.thetreeisnearly（36米高）.4.theatmosphereprotectstheearthfromthesunsheat,protect.from爱惜免遭例如：thethickcoatprotectsthebodyfromthecold.（2）thehelmetprotectstheheadfromtherock.（3）theplasticcoverprotectsthebookfrombeingbroken.5.nothingcouldremainaliveontheearthwithoutt

8、heatmospheretoprotectup.plantsdependonnitrogentostayalive.remainalive存活stayalive存活例如：remainsilentstaycalmremainstandingstayawakeremainthegoalstaycoolremainweakstayquietdependon依靠，依靠例如：thepeopleinthesouthdependonthegovernment,thepandasdependonourgoodcare,youcanztdependonyourparentsforever.【典型例题】thesu

9、ccessoftheOlympicgame（依靠）Chinesepeople,shardwork.（2）thepoorchildren（依靠）thoserichpeoplessupport.6.theairintheatmosphereismadeupofdustandgases,bemadeupof由构成，由组成例如：theclassismadeupof20boysand19girls,theteacherteamismadeupof126teachers.7.morethanthreefourthsofthegasisnitrogen,threefourths四分之三分数的概念：分数由基数

10、词作分子，序数词作分母构成，分母序数词都用复数。例如：-one-thirdsix-seventhsone-second（onehalf）-twoandfour-fifths8.peoplewhotraveltothemountainsfindithardertobreathe,sb.findit+adj.+todosth.某人发觉做某事怎么样例如：ifinditveryinterestingtotraveltotheforest,theboysfinditverycooltosmoke.【典型例题】我们发觉早睡觉有好处。we.他发觉游过这条河很难。hefound.9.airpollutionh

11、asdrawnworldwideattention,drawone,sattention引起某人的留意10.bigcitiesarefullofcars,befullof.装满充溢thebagfullofbooks,theroomisfullofpeople,thebagfullofricefelloffthetruck,thebasketisfullofeggs,thebasketfullofeggswassenttothepoorchild.【典型例题】1）一屋子的烟。theroom.2）鸟巢中全都是兴奋的观众。thenetexcitedaudiences.3）满满一袋大米被送到李奶奶家。grannyH.4）那个小姑娘给了我满满一碗粥。thelittlegirlgaveme.