2021-2022高中英語人教版選修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強(qiáng)調(diào)是一種修辭效果，為了對一定語境中的部分信息內(nèi)容進(jìn)行突出強(qiáng)調(diào)而采用的一種手段。強(qiáng)調(diào)的方式有很多種，但英語中強(qiáng)調(diào)句的基本結(jié)構(gòu)是:“Itis/was+被強(qiáng)調(diào)部分+that(who)+其余部分”。一、Itis(was)+被強(qiáng)調(diào)部分+that(who)+其余部分。1.此強(qiáng)調(diào)句可以強(qiáng)調(diào)主語，賓語，表語，同位語，狀語等。It,that本身沒有詞義，只起引導(dǎo)作用。典例：IsawKateintheparklastweek.(原句)Itwas_I__that/whosawKateintheparklastweek（強(qiáng)調(diào)主語）Itwas___that/who/whomIsawintheparklastweek.（強(qiáng)調(diào)賓語）Itwas_______thatIsawKatelastweek.（強(qiáng)調(diào)地點狀語）Itwas________thatIsawKateinthepark.（強(qiáng)調(diào)時間狀語）2.在強(qiáng)調(diào)句中，如果敘述的是現(xiàn)在和將來的事情，be動詞用is;如果敘述的是過去的事情be動詞用was練習(xí)：(填空)It___hethatwillgotothecinema.It___fromthesunthatwegetlightandheat.It___inShanghaithatIwasborn.3.當(dāng)被強(qiáng)調(diào)部分指人時，可以用that連接，也可用who/whom連接；指物時，只用that連接。練習(xí)：ItwasTom__________Imetlastweek.Itisanewbook_____hisbrotherwantstobuy.4.強(qiáng)調(diào)時間、地點狀語時,只用that,不用when,where.練習(xí)：Itisat5o'clock______thetrainwillarrive.Itwasinthepark_____IsawKatelastweek.5.若被強(qiáng)調(diào)的部分是句子的主語時，那么that/who之后的謂語動詞和被強(qiáng)調(diào)的主語保持一致。填空練習(xí)：Itwashewho_____late.ItisIwho____late.Itistheythat_____late.6.強(qiáng)調(diào)句的一般疑問句為“Is(was)it+強(qiáng)調(diào)部分+that…?強(qiáng)調(diào)句的特殊疑問句為：“特殊疑問詞+is(was)it+that+陳述句語序?”結(jié)構(gòu)。典例：HewillleaveforHongKongat7:00.Itisat7:00thathewillleaveforHongKong.Isitat7:00thathewillleaveforHongKong?WhenisitthathewillleaveforHongKong?（強(qiáng)調(diào)陳述語序）7.與否定詞not連用的until短語或從句在被強(qiáng)調(diào)時應(yīng)注意否定轉(zhuǎn)移。其結(jié)構(gòu)為“Itis/wasnotuntil…that…”典例：1）Ididn'tfinishmyhomeworkuntil5:00.Itwasnotuntil5:00thatIfinishedmyhomework.2）Hedidn'trealizehismistakesuntilhegraduatedfromhighschool.Itwasnotuntilhegraduatedfromhighschoolthatherealizedhismistakes.8.定語從句和強(qiáng)調(diào)句型容易混淆，如果去掉itis/was,that句子仍然通順成立，則為強(qiáng)調(diào)句型，不成立不通順，則為從句。比較訓(xùn)練：Itwasatsixo’clockthathegothome.Itwassixo’clockwhenhegothome.二、其他強(qiáng)調(diào)形式1.Itbe…that..句型不能強(qiáng)調(diào)謂語部分，若要強(qiáng)調(diào)謂語，則須在謂語動詞原形前面加上助動詞do,did,does.Ireallylikeyou,andIdohopeeveryonehasapromisingfuture.2.用副詞really,still,even強(qiáng)調(diào)。Itwashotyesterday,butitisevenhottertoday.3.用重復(fù)一個詞來達(dá)到強(qiáng)調(diào)效果。Hetoldusanoldstoryoverandoveragain.4.用倒裝表示強(qiáng)調(diào)。Onlyinthiswaycanhesolvetheproblem.5.一些短語onearth,atall,intheworld等含有強(qiáng)調(diào)意味的。Whatonearthdoyouwanttodo?Hedidn'tcareaboutitatall.強(qiáng)調(diào)句注意事項1.強(qiáng)調(diào)句型的特點去掉Itis(was)及that(who)后，在不添詞、不減詞的前提下能重新構(gòu)成一個意義完整的句子。這也是判斷一個句子是否是強(qiáng)調(diào)句型的依據(jù)。2.強(qiáng)調(diào)句型的時態(tài)如果原句中謂語動詞使用的是現(xiàn)在或?qū)頃r間范疇的時態(tài)（一般現(xiàn)在時、現(xiàn)在進(jìn)行時、現(xiàn)在完成/現(xiàn)在完成進(jìn)行時、一般將來時、將來進(jìn)行時、將來完成時等），用Itis…that…。如果原句中謂語動詞為過去時間范疇的時態(tài)（一般過去時、過去進(jìn)行時、過去完成時、過去將來時等），則用Itwas…that…。HomeworkRewriteeachsentencewith“Itis…that…”togivemoreemphasistotheunderlinedpart.1.Greenhousegaseshavewarmedtheearthbytrappingheatenergyintheatmosphere.2.Thegreenhouseeffectgivestheearth’ssurfacetheaveragetemperatureof15℃.3.Muchoftheenergyusedtolightandheatourhomescomesfromfossilfuels.4.ThebiggestproducerofgreenhousegasesistheUnitedStatesofAmerica.5.Carbondioxidestaysin