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1、Period4 Integratingskills Howmuchdoyouknowaboutthem Istheeconomytherewell developedornot Whichcityisthemostdeveloped Why Canyoutellwhatmapitis Whereisit Isthewaterheresaltyorfresh What stheplacewhereriverandtheoceanmeet Skimming Findthedefinitionofanestuary Anestuaryisthebodyofwaterwherearivermeetst
2、heocean Saltwaterfromtheoceanandfreshwaterfromtherivermixtogetherinanestuary Thismixingoffreshandsaltwatercreatesauniqueenvironmentfilledwithlifeofallkinds azonebetweenthelandandsea Greatplacesfornature syounganimalscleanourwaterbyabsorbingnutrientsandpollutantsfromwatercomingfrominlandsources Provi
3、debothrecreationandeducationforhumanbeings Whatkindsoffunctionofestuarieshavebeenmentionedinthepassage Discussion Whatlivingconditionsdoyouthinkareneededfornature syoungones Doestuarieshavesuchconditionsforthem 1 Whyareestuariessuchgoodplacesfornature syoungones Inestuaries animalscanenjoyallthebene
4、fitsoftheoceanswithouthavingtofacemanyofitsdangers Tidesprovideenergyfortheecosystems butestuariesareprotectedfromwavesandstormsbyislands mudorsand Nutrientsfromboththelandandtheoceanarriveinestuaries Readthepassageandanswerthefollowingquestions Scanning 4 Whyareestuariesmoresensitivetopollutionthan
5、otherareas Becauseestuariesactasfilters 过滤器 manypollutantsendupinthem 2 Whatdoesdensitymeaninthispassage Itmeansthenumberofspeciesperarea 3 Howdoyouestuariesaffectthewaterthatpassesthroughthem Theyabsorbnutrientsandpollutantsfromwatercominginlandsources thuscleaningourwater 5 Whyareestuariesimportan
6、ttohumanbeings Estuariesprovidebothrecreationandeducationforhumanbeings Peoplecanfish swimandhavefunonthebeach Scientistsandstudentshaveendlessopportunitiestostudyavarietyoflifeinthehabitat Estuariesalsocontributetotheeconomythroughtourismandfishing Estuariesarebodiesofwateralongcoaststhatare 形成 whe
7、nfreshwaterfromriversflowsintoand withsaltwaterfromtheocean Inestuaries thefreshriverwaterisblockedfromstreamingintotheopenoceanbyeithersurroundingmainland orislands Thismixingoffreshandsaltwater auniqueenvironment withlifeofallkinds azonebetweenthelandandseaknownasanestuary Finishthefollowingpassag
8、ewithwordsfromthetext formed mixes creates filled Theestuarygathersandholdsa oflife givingnutrientsfromthelandandfromtheocean forminganecosystemthatcontainsmorecreaturesthananyother ontheearth Estuariesarealsoimportantforhumanbeings Theyprotectwaterqualityby pollutantsfromwatercomingfrominlandsource
9、s Theyarecentersfor 娱乐 andeducation Estuaries inshort aretreasures variety habitat absorbing entertainment Writing Ifyouaredescribingaprocess Youshouldexplaineachstepintheorderithappens Tellthereadersaboutthecausesandeffectsandusewordslikefirst second then etctoshowtheorderofthesteps Tip1 First Seco
10、nd Third Then Last Ifyouarewritingaboutsomethingthathasseveralparts describeeachpartandexplainitsfunctionandstructure Thefollowingquestionsmayhelp Whatisit Howmanypartsisitmadeupof What sthestructureofeachpart Howdoesitwork What sthefunctionofthething Tip2 Imaginethatyourscienceteacheraskyoutoexplai
11、noneofthefollowingquestions Whydoesanicecubefloat Whatwillhappentoapieceofmetalifyouputitinwater Whydosomanyspeciesliveinestuaries Whyhavesomanycitiesbeenbuiltbyestuaries Chooseoneofthequestionsandwriteapassage usingwhatyouknowaboutnatureandscienceandwhatyouhavelearnedfromthisunit Chooseoneofthequestionsandwriteapassage usingwhatyouhavelearnedaboutwaterfromthisunitandnewwordsandsentencestructuresofthisunitaswell Homework
