高二英语课件高二英语下学期unit3高二英语课件

IntegratingskillsFindthedefinitionofanestuaryAnestuaryisthebodyofwaterwherearivermeetstheocean.Saltwaterfromtheoceanandfreshwaterfromtherivermixtogetherinanestuary.Thismixingoffreshandsaltwatercreatesauniqueenvironmentfilledwithlifeofallkinds－azonebetweenthelandandsea.1.Thefollowingstatementstellustheimportanceofestuaries________.A.Estuariesproviderecreationandeducationforhumanbeings.B.Estuariescontributetotheeconomyofacountry.C.Thedensityoflivingcreaturesinestuariesishigherthaninanyotherhabitatonearth.D.Estuariescleanourwaterbyabsorbingnutrientsandpollutantsfromwatercomingfrominlandsources.Readingcomprehension:ABCD2.Whytheestuariesareourplanet’snurseries?A.Becauseanestuaryisthebodyofwaterwherearivermeetstheocean.B.Becauseestuariesarethehomesofthousandsofanimalsandplants.C.Becauseestuariesareverysensitivetoenvironmentalpollution.D.Becauseestuariesareimportantinprotectingtheenvironmentaswellasinhuman’slife.3.The“density”inboldmeans_____.A.qualityB.quantityC.diversityD.varietyDBStructureofthepassage:124312431234√WritingIfyouaredescribingaprocess,Youshouldexplaineachstepintheorderithappens.Tellthereadersaboutthecausesandeffectsandusewordslikefirst,second,then,etctoshowtheorderofthesteps.First…Second…Third/Then…Last…Topic:________________Step1:Step2:Step3:Whatwillhappentoapieceofmetalifyouputitinwater?DescribewhathappensDescribethecausesandeffectsTheconclusionSamplewriting:Ifapieceofmetal,oranyotherobjectisputinwater,itwilldissolve.Becausethewatermoleculeismadeupofoneoxygenandtwohydrogenatoms.Itispolar,thatis,ithasaslightlynegativeandaslightlypositiveend.Thetwoendsmakeitpossibleforwatertobreakdownbothsolidsandgases.Soapieceofmetalwilldissolvewhenitisputinwater.Ifyouarewritingaboutsomethingthathasseveralparts,describeeachpartandexplainitsfunctionandstructure.Thefollowingquestionsmayhelp:Whatisit?Howmanypartsisitmadeupof?What‘sthestructureofeachpart?Howdoesitwork?What’sthefunctionofthething?书面表达现在越来越多的人购买小汽车。假设你叫李立，请你根据下面所给信息给报社编辑写一封信发表观点。字数：100左右。优点：有了小汽车，能自由来去，不用花很多时间；小汽车对于旅行比较舒适；开小汽车比自行车安全。缺点：越来越多的小汽车会引起污染、交通堵塞和更多的交通事故。建议：政府要适当控制小汽车的数量，使我们有一个洁净、安静的环境。生词：堵塞jams环境environmentDeareditor,Nowadaysinourcity,moreandmorepeopleowncars.Ithinktherearegoodreasonsforowningacar.First,withacarapersoncangetaroundfreely,withoutspendingalotoftime.Second,acariscomfortabletotravelin.Finally,itissafertodriveacarthanabicycle.However,Iamafraidmoreandmorecarswillcauseairpollution.What’smore,moreandmoretrafficjamsandaccidentsarehappeningeveryday.Personally,Ihopethegovernmentshouldcontrolthenumberofcarstoletushaveacleanandquietenvironment.YoursLili