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EnglishLesson-Mammals.doc

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EnglishLesson3:mammals Homework:1.Re-readthematerialifyouareconfusedaboutanythingsearchadictionarytogetanin-depthexplanationandlistentothepronunciations.2.Usethenewwordsfromthelessontomakesomesentences/shortstoriesorevenyourownlittlepoem.GettheNativeteachertocheckthemforyou.Readwhatyouhavewrittentoyournativeteacher-Practiceyourpronunciation! 3.Duringthisweeksstudyofanimalsresearchothertypesofanimals:Reptiles,Amphibiansetc–findoutbasicinformationabouttheseanimals–discusstheminthegroup Mon-Fri:ThenativeEnglishTeachershouldbeUnclePaul-askhim/heraboutanythingyouareunclearabout.Otherteachers:Zach-America(USA)XiaoXiong-UnitedKingdom(UK) LessonSummary: KeyTerms-getusedtothesetermsbeforewemoveon: *Invertebrates:animalwithoutabackbone:suchasaninsectorworm *Vertebrates:animalwithabackbone:andawell-developedbrainsuchasamammal,bird,reptile,amphibian,orfish *Omnivorous:eatinganykindormanydifferentkindsoffood,includingbothplantsandanimals(Animalsthateatbothplantsandanimalsareomnivores)*Herbivore:animalswhoonlyeatplants.*Carnivores:animalswhoeatmeat(mostlyotheranimalsbutsometimespeoplesobecareful)*Nocturnal-occurringatnight*marsupial-animalwithapouch,theyoungoftheseanimalsdevelopandgrowintheirmother’spouch(wombat,opossum,koalaetc)*Emblemisapictorialimage-abstractorrepresentational,ofteninterchangeablewithsymbol*snout-animal’snose:theprojectingpartofavertebrate’shead,consistingofthenoseandmouth*coniferous-cone-bearingtree:anytreethathasthinleaves(needles)andproducescones Task1:keypoints-whatmakesamammalamammal: *Mammalsproducemilkbyusingmammaryglands(female)*Allmammalshavehair*Thelowerjawonlyhasasingleboneoneitherside*Themiddleearofamammalcontains3bones*Themainarteryfromtheheartcurvesleft*Allmammalshaveadiaphragm ExtrainfoonMammals: Mammalsareaclassofvertebratescharacterisedbywarm-blood,hairybodies,afour-chamberedheart,asinglejawbone,sweatglandsand(infemales-mammaryglandsforsucklingyoung).Somemammals,suchasnakedmoleratsandwhaleshavelostsomeoralloftheirhair.Almostallmammalsgivebirt