人教版高中英语教案选修六Unit5ThepowerofnaturePeriod3

1Period3Grammar—the－ingForm整体设计教学内容分析Thisteachingperiodmainlydealswiththegrammar：the－ingform.IntheEnglishlanguage，the－ingformofaverbmaybeapresentparticipleoragerund.Theformisidenticalandthedifferenceisinthefunction，orthejobitdoesinthesentence.Thepresentparticipleismostcommonlyused：(1)Afterverbsofmovement/positioninthepattern.(2)Afterverbsofperceptioninthepattern.Thegerundalwayshasthesamefunctionasanoun(althoughitlookslikeaverb)．Inthisperiodwewillfocusononlypartoftheusagesofthepresentparticiple，thatis，thepresentparticipleusedastheadverbial.三维目标设计Knowledgeandskills1．Togetthestudentstoknowthedifferentformsandusagesofthepresentparticiple.2．Toenablethestudentstousethepresentparticipleastheadverbialcorrectlyandproperly.Processandmethods1．Toaskthestudentstopickoutthesentenceswiththe－ingformfromthereadingpassageandtranslatethemintoChinese.2．Toaskthestudentstodiscovertheformandusagesofthe－ingformbycomparingalotofexamplesentences.3．ToaskthestudentstodotheexercisesinDiscoveringusefulstructuresonPage37forstudentstomasterthe－ingform.4．Toaskthestudentstosummarizethe－ingform.5．ToaskthestudentstodotheexercisesinUsingStructuresonPage71andsomeotheradditionalexercisesforconsolidation.Emotion，attitudeandvalue1．Togetthestudentstobecomeinterestedingrammarlearning.2．Todevelopthestudents'abilityofcomparingandsummarizing.[来源:学科网]教学重、难点1．Togetthestudentstomasterthestructureandusagesofthe－ingform.2．Toenablethestudentstolearnhowtousethe－ingformcorrectly.教学过程1Revision1．Checkthehomeworkexercises.2．Dictatesomenewwordsandexpressions.3．TranslatethefollowingsentencesintoEnglish：(1)凯特早上看到了火山爆发，她兴奋得整夜不能入睡。(2)得知可怕的台风的消息后，我打电话给爸爸看一切是否安好。Suggestedanswers：(1)Havingseenavolcanoeruptinginthemorning，Katefeltexcitedandcouldn'tfallasleepatnight.2(2)Havinggotthenewsabouttheterribletyphoon，IcalledmyfathertoseeifeverythingwasOK.2WarmingupAskthestudentstogobacktoPage33andstudythefollowingthreesentencesinPre－readingandtranslatethemintoChinesepayingspecialattentiontotheirverbforms：(1)Doyouthinkyouwouldenjoystudyingvolcanoesasajob?(2)Doyoulikeworkingoutsideaswellasinside?(3)Areyouinterestedinstudyingrocksandotherthingsthatmakeupthesurfaceoftheearth?Tellthestudentsthattheabovethreesentencesarewiththe－ingformanddiscussitwiththem.Thenaskthestudentstothinkoverthequestion“Whatisthe－ingform？”Suggestedanswers：(1)你认为你会乐意把研究火山作为工作吗？(2)你喜欢室内工作同时也喜欢室外工作吗？(3)你对研究岩石及其他一些组成地球表面的物质感兴趣吗？3Grammarlearning[来源:学.科.网]Askthestudentstostudythefollowingsentencesandtrytosummarizethestructuresandthemeaningsofthe－ingform.1．the－ingformastheadverbial(1)Because_I_was_feeling_tired，Iwenttobedearly.因为感到累了，所以我早早地上床睡觉了。[来源:学。科。网Z。X。X。K](＝_Feeling_tired，Iwenttobedearly.)(2)While_I_was_walkingalongthestreet，ImetMary.在街上走的时候，我遇到了玛丽。(＝Wakingalongthestreet，ImetMary.)(3)If_you_turntotheleft，youwillfindtheschool.向左转，你就会找到那个学校。(＝Turning_totheleft，youwillfindtheschool.)(4)Though_he_knowswhereIlive，henevercomestoseeme.虽然他知道我的住处，但是他从来不来看我。(＝KnowingwhereIlive，henevercomestoseeme.)(5)Istoodthere，and_waitedforher.我站在那儿等她。(＝Istoodthere，waitingforher.)2．havingdone(1)After_I_had_finishedmywork，Iwenthome.工作做完之后我就回家了。(＝Having_finishedmywork，Iwenthome.)(2)Because_the_book_had_been_writteninhaste，ithassomefaults.这本书因为仓促完成，所以有些缺憾。(＝Having_been_writteninhaste，thebookhassomefaults.)4SummingupTrytohelpthestudentsdrawthefollowingconclusions.1．The－ingformcanbeusedastheadverbialinasentencetogiveinformationabouttime，reasonsorresults.2．Weusethestructure“having＋pastparticiples”(theperfect－ingform)torefertoanactionthattookplacebeforethetimeexpressedbytheverbinthemainclause.5Grammarpractice3Askstudentstodothefollowingexercises.1．Changethefollowingsentencesintothe－ingform.Puttheverbsintothecorrectforms.(1)WhenRosewokeupinthemiddleofthenight，shesawherroomwasasbrightasday.(2)Afterwehadstoppedthecar，wefoundourselvestrappedinthickfogandcouldn'tseeclearlyahead.(3)BecauseIhadspentallnightreadingthedocuments，Iwasverytiredthenextday.(4)Asthechildhadneverseenarainbowbefore，hewasveryexcited.Suggestedanswers：(1)Wakingupinthemiddleofthenight，Rosesawherroomwasasbrightasday.(2)Havingstoppedthecar，wefoundourselvestrappedinthickfogandcouldn'tseeclearlyahead.(3)Havingspentallnightreadingthedocuments，Iwasverytiredthenextday.(4)Havingneverseenarainbowbefore，thechildwasveryexcited.[来源:学|科|网]2．DoExercise4inDiscoveringusefulstructuresonPage37.Firstaskstudentstodotheexercisesindividuallyandthenletthemdiscussandchecktheiranswerswiththeirpartners，andfinallygivethemthecorrectanswersanddealwithanyproblemstheymightmeet.6GettingmoreaboutthegrammarAskstudentstogobacktoPage34andreadthroughthereadingpassageAnExcitingJobtopickoutthesentenceswiththe－ingformandthentranslatethemintoChinese.Suggestedanswers：(1)Sometimesworking_outdoors，sometimesinanoffice，sometimesusing_scientific_equipmentandsometimesmeeting_local_people_and_tourists，Iamneverbored.有时在室外工作，有时在办公室，有时工作中要用科学仪器，有时要会见当地百姓和旅游人士，我从来不感到工作烦人。(2)Myjobiscollecting_information_for_a_database_about_Mount_Kilauea，whichisoneofthemostactivevolcanoesinHawaii.我的任务是收集有关基拉韦厄火山的数据资料，这是夏威夷最活跃的火山之一。(3)Having_experie