高二英语人教版选修6课件：unit 4 learning about language .ppt

《高二英语人教版选修6课件：unit 4 learning about language .ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、人教课标高二选修6Unit4Unit4GlobalwarmingLearningaboutlanguageGoovernewwordsandphrasesinthepreviousthesections.Thencompleteeachsentencewithoneofthosenewwordsorphrases.21.CharlesKeelingcollected_____onthecarbondioxidecontentintheatmosphereoveraforty-yearperiod.Hefoundthattheamo

2、untofcarbondioxide_______increasingduringthattime.datakepton2.Althoughweareburningcoalinhuge_________everyyear,wewon’t________ofitforcenturies.3.Iftheamountofgreenhousegasescontinuesto________,wecouldbefacingaglobal___________.quantitiesrunoutbuildupcatastrophe4.Manys

3、cientistsbelievethatglobalwarminghas__________throughtheburningoffossilfuels.comeabout5.The____________ofarisingsealevelwouldbewidespreadflooding.consequence6.Onthewholethewarmingoftheearthisa____________thatcausesgreatconcern.7.The_______showstemperaturechangesduring

4、the20thcentury.8.Onehectareofforestcanabsorb23tonsofcarbondioxide____year.phenomenongraphper9.Thewashingmachineusestoomuchenergy,but_______webuyamoreeconomicalone,itwouldstillusetoomuchwater.10.Thecaraccidentonthemainroadyesterday__________onedriver’sdeath.evenifresul

5、tedin由it引导的强调句结构：Itis(was)+被强调部分+that(who)+句子其他部分注意：此结构强调的成分仅限于主语，宾语和状语。ExplanationItwasinthatcitythatwemetforthefirsttime．e.g.ItwasnotuntilhetoldmethatIknewthetruth．原句：Myfatherdidtheexperimentinthelabyesterdayevening．强调宾语：Itwastheexperimentthatmyfatherdidinthelabyest

6、erdayevening．强调主语：Itwasmyfatherwho/thatdidtheexperimentinthelabyesterdayevening．强调地点：Itwasinthelabthatmyfatherdidtheexperimentyesterdayevening．强调时间：Itwasyesterdayeveningthatmyfatherdidtheexperimentinthelab．Itwaslastnight____IsawthefilmStarWars．A.whoB.whenC.thatD.which

7、答案C强调句的结构是：It+be+强调部分+that(who)+主谓句。强调句的连词只有两个，that和who。当强调的部分是人，且为句子的主语时，才用who，其余用that。2)Itistenyears_____MissGreenreturnedtoCanada．A.thatB.whenC.sinceD.as答案C考点是连词用法。本题易误选为A其实本句不是强调句。若是去掉Itbe…that还应是一个完整的句子。而本句去掉Itis…that,只剩下tenyearsMissGreenreturnedtoCanada不成句。因此本句不

8、是强调句。Itis+时间+since...，其中is=hasbeen.1.Itwasthisvillage___Iwasbought.A.whereB.thatC.onwhichD.which2.Itwasinthisvillage_______I