选修八4.4《Unit4　LanguageStudy》课学习培训模板课件

《选修八4.4《Unit4　LanguageStudy》课学习培训模板课件》由会员分享，可在线阅读，更多相关《选修八4.4《Unit4　LanguageStudy》课学习培训模板课件（54页珍藏版）》请在万象文库上搜索。

1、新课标人教版课件系列高中英语选修选修(模块）模块）88-4LanguageStudyAsleposterFightglobalwarmingCutdownonenergyCutdownoncarbondioxideNotusingit.?Turnitoff.Dontturntheheatup,putonajacket.Walkorrideabike.Recycle.Buyproductsmadefromrecycledmaterials.Buyenergy-savingproducts.Planttrees.Talkaboutglobalwarming.Discoveringusefulwordsandexpressions(PGooverthenewwordsandphrasesintheprevioussections.Thenpleteeachsentencewithoneofthosenewwordsorphrases.CharlesKeelingcollected_onthecarbondioxidecontentintheatmosphereoveraforty-yearperiod.Hefoundthattheamountofcarbondioxide_increasingduringthattime.datakeptonAlthoughweareburningcoalinhuge_everyyear,wewont_ofitforcenturies.Iftheamountofgreenhousegasescontinuesto_wecouldbefacingaglobal_.quantitiesrunoutbuildupcatastropheManyscientistsbelievethatglobalwarminghas_throughtheburningoffossilfuels.Theydonotthinkthatignoringtheissueisworththe_.eaboutrisk_describesweatherconditionsoveraperiodofyearsinaparticularplace.ClimateThe_ofarisingsealevelwouldbewidespreadflooding.TheuseofenergyinSusannascountryislow_theuseofenergyintheUSA.consequenceparedtoThewarmingoftheearthisa_thatcausesgreatconcern.The_showstemperaturechangesduringthe20thcentury.Onehectareofforestcanabsorb23tonsofcarbondioxide_year.phenomenongraphperLookatthetwographsonpageThenpletetheparagraphsaboutthemwithappropriatewords.Thefirstgraphshowstheglobal_between_and_.2temperatureThetemperature_anddecreasedoverthisperiodbutonthewholeit_byaroundonedegreeFahrenheit.Duringthistime,theearthreachedits_temperatureinabout_anditshighestin20XX.increasedroselowest1910Therewasasteady_inthetemperatureduringthetwentyyearsafterWecanseefromthegraphthattheearthhasbee_sinceearlylastcentury.Thesecondgraphshowstheamountof_intheincreasewarmercarbondioxideatmospherefrom_to_.Thecarbondioxide_steadilyoverthisforty-yearperiod.Itwentupfrom315to370parts_million.perwentupCompletethesentencesbelowwiththecorrectword.Useanewwordmadefromawordontheleftandasuffixontheright.UsingWordsandExpressions(PThosefactoriesarecausingalotof_withalltheirnoiseandsmoke.YesterdaythePrimeMinistermadea_announcingnewlawstoreducewaterpollution.pollutionstatementThetwocountrieshavereachedan_onthelevelsofgreenhousegasestheywillallow.Thequalityoftheairwouldimproveiftherewasa_intheuseofcoal.agreementreductionTheincreaseintheuseoffossilfuelscouldhave_resultsfortheearth.Wehavelostthousandsoftreesbecauseofafirestartedbyan_storm.catastrophicelectricalThisspeciesoffrogistheonlyonein_inthisarea.Theresthavedisappeared.Thetwocountriesare_intheiruseofnaturalgas.existenceparablePastaccidentshaveshownthatbuildingnuclearpowerstationscanbe_.Manypeopledontunderstandthe_oftheworldsenvironmentalproblems.riskyseriousnessIwonderwhetherthesefloodshavebeencausedby_changes.Itisextremely_thattheworldwillstopusingfossilfuelsthiscentury.climaticdoubtfulAnswerkeyforExercise2PItwouldmakeabigdifferencetoourenvironmentifweplantedmoretreesaroundtheschool.Theresearchresultedinabetterunderstandingofchangesintheclimate.Ithinkourconferencewasverysuccessfulonthewhole.Thereisawiderangeofenergysources:coal,oil,naturalgas,waterpower,nuclearpowerandsoon.Ithinkpeopleturnuptheheatintheirhousestoohighandjustwasteenergy.Evenifthereisasteadydecreaseintheuseofoilfuels,theearthwillstillkeepwarmingup.Theheadmasterhasstatedthatheisnotgoingtoputupwithlitteringintheschool.Sinceyourbicycleisbrokenyoucanusemine,solongasyoutakecareofit.TheconsumptionoftheenergyresourcesintheUSAisalmost6timesasmuchastheaverageconsumptionofthewholeworld.IveglancedatyourplansonowIwantyoutofinishyourfinalreport.AnswerkeyforExerciseItwasascientistcalledCharlesKeelingwhomadeaccuratemeasurementsoftheamountofcarbondioxideintheatmospherefrom1957toDiscoveringusefulstructures(P(Theyalsobelieve)itistheburningofmoreandmorefossilfuelsthatisresultinginthisincreaseincarbondioxide.Explanation由由it引导的强调句结构引导的强调句结构：Itis(was)+被强调部分被强调部分+that(who)+句子其他部分句子其他部分注意：注意：此结构强调的成分仅限于主此结构强调的成分仅限于主语，宾语和状语。

语，宾语和状语。

2、如：如：原句：原句：Myfatherdidtheexperimentinthelabyesterdayevening强调主语：强调主语：Itwasmyfatherwho/thatdidtheexperimentinthelabyesterdayevening强调宾语强调宾语：Itwastheexperimentthatmyfatherdidinthelabyesterdayevening强调时间强调时间：Itwasyesterdayeveningthatmyfatherdidtheexperimentinthelab强调地点强调地点：Itwasinthelabthatmyfatherdidtheexperimentyesterdayeveninge.g.ItwasinthatcitythatwemetforthefirsttimeItwasnotuntilhetoldmethatIknewthetruth典型例题分析：典型例题分析：Itwaslastnight_IsawthefilmStarWarsAwhoBwhenCthatDwhich答案答案C强调句的结构是：强调句的结构是：It+be+强调部分强调部分+that(who)+主谓句。

强主谓句。

强调句的连词只有两个，调句的连词只有两个，that和和who。

3、当强调的部分是人，且为句子的主当强调的部分是人，且为句子的主语时，才用语时，才用who，其余用，其余用that。

4、Itistenyears_MissGreenreturnedtoCanadaAthatBwhenCsinceDas答案答案C考点是连词用法。

本题易考点是连词用法。

本题易误选为误选为A其实本句不是强调句。

其实本句不是强调句。

5、若是去掉若是去掉Itbethat还应是一个完整还应是一个完整的句子。

而本句去掉的句子。

6、而本句去掉Itisthat,只剩下只剩下tenyearsMissGreenreturnedtoCanada不成句。

因此本不成句。

因此本句不是强调句。

句不是强调句。

7、Itis+时间时间+since.，其中其中is=hasbeen.Itwasthisvillage_Iwasbought.A.whereB.thatC.onwhichD.which练习练习:Itwasinthisvillage_Iwasboughtup.A.whereB.thatC.onwhichD.which-Wasitunderthetree_youwereawaytalkingtoafriend?-Sure.ButwhenIgotbackthere,thebikewasgone.A.thatB.whereC.whichD.whileAnswerkeyforExerciseItisgreenhousegasesthathavewarmedtheearthbytrappingheatenergyintheatmosphere.Itisthegreenhouseeffectthatgivestheearthssurfacetheaveragetemperatureof15C.Itisfossilfuelsthatmuchoftheenergyusedtolightandheatourhomesesfrom.ItistheUnitedSatesofAmericathatisthebiggestproducerofgreenhousegases.Itisforcenturiesthatcarbondioxidestaysintheatmospherewhileothergreenhousegasesstayintheatmosphereonlyforadayorless.Itistheirveryexistencethatlow-lyingcountriesfeelisindangerfromrisingsealevels.Itishumanactivitiesthatmanyscientistsbelievehavecausedtheearthstemperaturetorise.Itisfutureclimatechangesandtheireffectsonourenvironmentthatscientistswanttofindoutabout.Itisbyseveralmetresthattheleveloftheseacouldriseintheyearsaheadbecauseofglobalwarming.Itisouterspacethatmightprovideuswithnewenergysourcesinthefuture.GiveafullanswertoeachquestionaboutMillenniumKidsusingtheformitis/was.that.USINGSTRUCTURES(PWhenwasthefirstchildrensconferenceontheenvironmentorganizedinAustralia?Itwasin1996thatthefirstchildrensconferenceontheenvironmentwasorganizedinAustralia.WhorunsMillenniumKids?Itischildrenthat/whorunMillenniumKids.WherecanyoufindoutmoreaboutMillenniumKids?ItisontheInternetthatyoucanfindoutmoreaboutMillenniumKids.Wheredotheyoungpeopledecidewhichprojectstheywanttoconcentrateon?Itisattheyearlyconferencethattheyoungpeopledecidewhichprojectstheywanttoconcentrateon.WhatisMillenniumKidsaskingyoutoreduce,reuseandrecycleatthemoment?ItisplasticbagsthatMillenniumKidsisaskingyoutoreduce,reuseandrecycleatthemoment.AnswerkeyforExerciseIndeed,itwasfourAustralianchildrenwhostarteditin1996whentheyorganizedthefirstchildrensenvironmentalconference.Itisatthisconferencethatwedecidewhichprojectswewanttoworkoninthefollowingyear.ItwasthroughoneoftheseprojectsaboutfiveyearsagothatIfirstbecameinvolvedinMillenniumKids.HomeworkMakefoursentenceswithitforemphasis.。