英语科普知识

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1、.-Unit1LivingandNonlivingthingsHowdoPlantsandAnimalsNeedoneanother?MainideaOurenvironmentincludesLivingandNonlivingthings.Plantsandanimalsdependoneachother.Theymakeuptheenvironment.Scienceknowledge:(1)HowdoAnimalsgethelpfromplants1.Theyuseplantsforshelter.Theyhideorbuildhomeinpl

2、ants.2.Plantsgiveoffoxygenwhileanimalsneedoxygen.3.Someanimalseatplantdirectlyorindirectly.(2)HowdoAnimalsgivehelptoplantsAnimalshelpplantstoreproduce.1.Animalscarryfruitswhichcontainsseeds.2.Theyspreadpollenforplants,pollensticktothem.Vocabulary1.Environmentn.环境2.Reproducev.繁殖3

3、.Pollenn.花粉4.Livingandnonlivingthings生物和非生物5.Oxygenn.氧气giveoffoxygen放出氧气6.Dependoneachother互相依赖7.Meetone’sdemand满足某人的需求8.Stickv.粘贴sticktoone’sidea坚持自己的观点-.word.zl.-n.细棒Whatisafoodchain?MainideaAllfoodchainsaremadeofproducers,consumers,anddecomposers.Energymovesupfromplantstoanim

4、alsinafoodchain.Scienceknowledge(1)food1.Plantsuseaprocesscalledphotosynthesis,usingwater,carbondioxideandenergyfromthesuntomakesugarsandgiveoffoxygen.2.livingthingseatotherlivingthings.Theygetenergyfromthem.(2)foodchain1.Foodchainshowsthepathenergymovesbetweenlivingthingsinanec

5、osystem.2.Theonebeeneateniscalledpreyandtheonewhoeatsthepreyiscalledpredator.Ananimalcanbothbeapreyandapredator.Vocabulary1.Foodchainn.食物链2.Producern.生产者makefoodthemselves3.Photosynthesisn.光合作用4.Consumern.消费者eatorgetfoodfromtheproducer.5.Decomposern.分解者6.Carnivoren.食肉动物Herbivore

6、n.食草动物Omnivoren.杂食动物7.Preyn.猎物predatorn.猎食者-.word.zl.-1.Raccoonn.浣熊Unit2AnimalsWhatareSomekindsofAnimals?MainideaAnimalscanbeputintogroups.Theyaredifferentinordertosurvive.Groupsofanimalshavesimiliarbodyparts.ScienceknowledgeDifferentfeatures1.Mammalshashairorfurcoveringtheirski

7、n.Mostmothersgivebirthtoliveyouth.Theyoungdrinkmilkfromtheirmother.2.Birdshavefeathers,wingsandbeak.Notallbirdscanfly.Theyusebeakstogetfoodandbuildnests.Theylayeggstohaveyoung.3.Repitleshavedryskinwithscales.Mostmotherslayeggsonland.4.Mostyoungamphibianliveinwater.Whileadultsliv

8、eonland.Theylaytheireggsinwater.5.Fishliveinwat