2021-2022高中英语人教版选修6教案：Unit4globalwarminggrammarWord版含答案3

Unit4GlobalwarmingGrammar教案Knowledgeandskills:1.Revisetheusagesoftheemphaticsentences.2.Getthestudentstoknowhowtousetheemphaticsentences.3.Teachthestudentshowtotheemphaticsentencesintheircompositionanddailycommunication.Processandmethods:Explanation;exerciseEmotion,attitudeandvalues:Buildupthestudent’sconfidenceingrammarlearningTeachingimportantpointsanddifficultpoints:1.Howtocontrasttheemphaticsentencesandtheattributiveclause.2.Howtousetheemphaticsentencesindifferentsituation.Teachingmethodsandmeans:1.TheEnglishFour-in-oneTeachingMethod.2.Question-and-answeractivity.Teachingprocedures强调是一种修辞效果，为了对一定语境中的部分信息内容进行突出强调而采用的一种手段。强调的方式有很多种，但英语中强调句的基本结构是:“Itis/was+被强调部分+that(who)+其余部分”。一、Itis(was)+被强调部分+that(who)+其余部分。1.此强调句可以强调主语，宾语，表语，同位语，状语等。It,that本身没有词义，只起引导作用。典例：IsawKateintheparklastweek.(原句)Itwas_I__that/whosawKateintheparklastweek（强调主语）Itwas___that/who/whomIsawintheparklastweek.（强调宾语）Itwas_______thatIsawKatelastweek.（强调地点状语）Itwas________thatIsawKateinthepark.（强调时间状语）2.在强调句中，如果叙述的是现在和将来的事情，be动词用is;如果叙述的是过去的事情be动词用was练习：(填空)It___hethatwillgotothecinema.It___fromthesunthatwegetlightandheat.It___inShanghaithatIwasborn.3.当被强调部分指人时，可以用that连接，也可用who/whom连接；指物时，只用that连接。练习：ItwasTom__________Imetlastweek.Itisanewbook_____hisbrotherwantstobuy.4.强调时间、地点状语时,只用that,不用when,where.练习：Itisat5o'clock______thetrainwillarrive.Itwasinthepark_____IsawKatelastweek.5.若被强调的部分是句子的主语时，那么that/who之后的谓语动词和被强调的主语保持一致。填空练习：Itwashewho_____late.ItisIwho____late.Itistheythat_____late.6.强调句的一般疑问句为“Is(was)it+强调部分+that…?强调句的特殊疑问句为：“特殊疑问词+is(was)it+that+陈述句语序?”结构。典例：HewillleaveforHongKongat7:00.Itisat7:00thathewillleaveforHongKong.Isitat7:00thathewillleaveforHongKong?WhenisitthathewillleaveforHongKong?（强调陈述语序）7.与否定词not连用的until短语或从句在被强调时应注意否定转移。其结构为“Itis/wasnotuntil…that…”典例：1）Ididn'tfinishmyhomeworkuntil5:00.Itwasnotuntil5:00thatIfinishedmyhomework.2）Hedidn'trealizehismistakesuntilhegraduatedfromhighschool.Itwasnotuntilhegraduatedfromhighschoolthatherealizedhismistakes.8.定语从句和强调句型容易混淆，如果去掉itis/was,that句子仍然通顺成立，则为强调句型，不成立不通顺，则为从句。比较训练：Itwasatsixo’clockthathegothome.Itwassixo’clockwhenhegothome.二、其他强调形式1.Itbe…that..句型不能强调谓语部分，若要强调谓语，则须在谓语动词原形前面加上助动词do,did,does.Ireallylikeyou,andIdohopeeveryonehasapromisingfuture.2.用副词really,still,even强调。Itwashotyesterday,butitisevenhottertoday.3.用重复一个词来达到强调效果。Hetoldusanoldstoryoverandoveragain.4.用倒装表示强调。Onlyinthiswaycanhesolvetheproblem.5.一些短语onearth,atall,intheworld等含有强调意味的。Whatonearthdoyouwanttodo?Hedidn'tcareaboutitatall.强调句注意事项1.强调句型的特点去掉Itis(was)及that(who)后，在不添词、不减词的前提下能重新构成一个意义完整的句子。这也是判断一个句子是否是强调句型的依据。2.强调句型的时态如果原句中谓语动词使用的是现在或将来时间范畴的时态（一般现在时、现在进行时、现在完成/现在完成进行时、一般将来时、将来进行时、将来完成时等），用Itis…that…。如果原句中谓语动词为过去时间范畴的时态（一般过去时、过去进行时、过去完成时、过去将来时等），则用Itwas…that…。HomeworkRewriteeachsentencewith“Itis…that…”togivemoreemphasistotheunderlinedpart.1.Greenhousegaseshavewarmedtheearthbytrappingheatenergyintheatmosphere.2.Thegreenhouseeffectgivestheearth’ssurfacetheaveragetemperatureof15℃.3.Muchoftheenergyusedtolightandheatourhomescomesfromfossilfuels.4.ThebiggestproducerofgreenhousegasesistheUnitedStatesofAmerica.5.Carbondioxidestaysin