系列Globalwarming 省赛获奖-完整版课件

SectionⅡLearningaboutLanguage

ageneraltendencyinthewayasituationischanging形势变化的总的趋势1．tendencyn．倾向；趋势典例Thereisagrowingtendencyforpeopletoworkathomeinsteadofinoffices.

人们在家里而不是在办公室工作的趋势日益增长。拓展tendency(forsb.)todosth.(某人)做某事的倾向tendencytowards/tosth.……的倾向/趋势运用完成句子①Hehas__________________(逃跑的倾向)standingonthestagefacingsomanypeople.②The______________________(和平的趋势)canbeseenclearlynow.atendencytorunawaytendencytowards/topeace

Onthewholethewarmingoftheearthisaphenomenonthatcausesgreatconcern.地球变暖基本上是一个引起巨大关注的现象。2．onthewhole大体上；基本上典例Nocitizenspayattentiontotheeffectstheyhaveontheenvironmentonthewhole.

基本上，没有市民去关注他们对环境造成的影响。

拓展asawhole作为一个整体；整体来看

thewholeof整个……运用用whole构成的短语填空①Thisarticleiswellwritten________________.②Wemustlookattheeducationalproblem________________. ③________________themorningwaswastedtryingtofindthedocuments.onthewholeasawholeThewholeofLow-lyingcountriesfeeltheirveryexistenceisindangerfromrisingsealevels.低洼的国家感到他们完全生存在海平面上升的危险中。3．existence解析existence是动词exist的名词形式，多用作不可数名词，表示“生存；存在”。如：It'simpossibletoprovetheexistenceofGod.无法证明上帝的存在。拓展inexistence存在的；现有的comeintoexistence(＝comeintobeing)产生；成立bring/oexistence使……产生/成立运用完成句子①Thisisthetallestbuilding________________(现有的)intheworld.②Thecompany________________(成立)20yearsago.inexistencecameintoexistenceit的用法Ⅱ

本单元的语法点是it引导的强调句。it可以用来对句子的某一成分进行强调，其基本句型结构为“Itis/was＋被强调的成分＋that/who/whom＋其他成分”。该结构的强调成分仅限于主语、宾语和状语。1．强调主语ItwasIthat/whometJackonthewaytoschoolthismorning.是我今天早晨在上学的路上碰到了杰克。2．强调宾语或介宾ItisMarywho/whom/thatyoushouldask.你应该问的是玛丽。Itwastomethatshegavethemoney.她那钱是给我的。3．强调状语(1)强调地点状语ItwasinShanghaithatIstudiedfouryearsago.我四年前就是在上海读书。(2)强调时间状语ItwasfouryearsagothatIstudiedinShanghai.就在四年前我在上海读书。(3)强调方式状语Itwasinthiswaythattheywonthegame.就是用这种方法他们赢得了比赛。注意：

(1)强调人时，连接词可用that，也可用who(作从句的主语)或whom(作从句的宾语)；强调物或状语时，连接词只能用that。

(2)原句的谓语动词时态是过去时，用“Itwas...”，其余用“Itis...”。如：ItisEnglishthatMr.Wangteachesus.王老师教我们的是英语。ItwasEnglishthatMr.Wangtaughtuslastyear.王老师去年教我们的是英语。(3)从结构上看，把强调句的结构去掉，剩下的仍是完整的句子。

(4)强调句的一般疑问句为“Is/Wasit...that...”；否定句为“Itisn't/wasn't...that...”；特殊疑问句为“特殊疑问词＋is/was＋it＋that...”。如：Isittomorrowthatwewillhaveameeting?是不是明天我们将有一个会议？Itisn'ttomorrowbutthedayaftertomorrowthatwewillhaveameeting.不是明天而是后天我们将有一个会议。Whenwasitthatyoucaughtacold?你究竟是什么时候感冒的？一、完成句子

1．________________alongtheMississippiRiver________________(正是)MarkTwainspentmuchofhischildhood.2．What________________(是)hisdaughterneedsmost?3．ItwasMikeandJim________________(帮助)theoldmanlastweek.4．It________________(是她)peopletooktoanearbyhospitallastnight.5．Itwas________________hecameback______________(直到……才)heknewthenews.Itwasthatisitthatwho/thathelpedwasherthat/whomnotuntilthat二、句型转换1．Itwasat9thatIcalledyouyesterday.(对画线部分提问)______________________________________________________2．IvisitedthemuseumwithMaryonSunday.(强调句，强调时间状语)______________________________________________________3．Ioftenhelpmymotherwiththehousework.(强调句，强调宾语)______________________________________________________Whenwasitthatyoucalledmeyesterday?ItwasonSundaythatIvisitedthemuseumwithMary.Itismymotherthat/who/whomIoftenhelpwiththehousework.4．Itwasnotuntilteno'clocklastnightthatmyfatherreturned.(陈述句)______________________________________________________5．It'st