Unit 6 Nurturing nature Using language 教案-高中英语外研版（2019）选择性必修第一册

Unit6NurturingnatureUsinglanguage教学设计科目：英语课题：Usinglanguage课时：1课时教学目标与核心素养：知识目标：Studentscanlearnsomenewwordsandbasicsentencestructures.能力目标：Studentscangrasptheuseofthepresentperfectcontinuoustenseandpersuasiveexpressions.情感目标：Studentscanthinkabouthowtoprotectthenaturalenvironmentwhiledevelopingtheeconomy.教学重难点：教学重点：Mastertheuseofthepresentperfectcontinuoustense.教学难点：1.Howtousethepresentperfectcontinuoustense.2.Howtousethekeywordsandphrasesinthesection.课前准备：多媒体，黑板，粉笔；教学过程：GreetingLeading-in学生活动：DoActivity1onPage86.Lookatthesentencesfromthereadingpassageandanswerthequestions.Whichofthesestatementsaretrueaboutsentence(a)?Wildanimalsstartedusingthesepassagesinthepast.Wildanimalsusedthesepassagesonlyonce.Wildanimalsstillusethesepassagesnow.Whatisthedifferencebetweentheexpressionsinboldinsentences(a)and(b)?(Suggestedanswers:1)、3)；Theyaredifferentinformandmeaning.Forsentence(a)theformis"havebeendoing",whileforsentence(b)theformis"havedone"Inmeaning,theboldpartinsentence(a)meanstheactioniscontinuousfromthepast;whiletheboldpartinsentence(b)meanstheactionhappenedonceinthepast.)Presentation1.教师活动：教师讲解：Presentperfectcontinuous现在完成进行时Giveenoughexamplesandguidestudentstosumuptheusagesofpresentperfectcontinuous.Thenaskstudentstogiveexamples.现在完成进行时的构成现在完成进行时由“have/hasbeen+动词的现在分词”构成，第三人称单数用has，其他人称用have。现在完成进行时的用法①表示从过去开始一直持续到现在的动作，该动作在说话时仍在继续进行，可能还要继续下去，也可能刚刚结束。这个时态常和recently、allday、thisweek等状语或for、since引导的时间状语从句连用。例如：Ihavebeenwritingthelettersincethen.从那时起我一直在写这封信。Wehavebeenstudyingfornearly3hours.我们已经学了近3个小时了。HehasbeenstudyingtraditionalChinesemedicinesince1999.他从1999年开始学习中医。Hashebeenstudyinghardsincethenewtermbegan?新学期开始以来,他一直在努力学习吗？②带有某种感情色彩：RecentlyLiHuahasbeenhelpinghismotherdohouseworkregularly.(赞许的感情色彩)最近李华经常帮他妈妈做家务。I'mgladthelectureisfinished!I'vebeensittingforthreehours.(强调坐的时间长)很高兴演讲终于结束了，我已经整整坐了三个小时了。不能用现在完成进行时的情况①某些不能用于进行时的动词同样也不能用于现在完成进行时，只能用现在完成时。如：see、hear、know、have、like、be等。他已经感冒两个星期了(×)Hehasbeenhavingacoldfortwoweeks(√)Hehashadacoldfortwoweeks.②不具有延续意义的动词，如:finish、come、go、marry等不能用于现在完成进行时。现在完成时和现在完成进行时的区别：①现在完成时强调动作已经完成，但对现在有影响或其结果现在仍然存在；而现在完成进行时着意于动作本身，是一种持续的(但不一定是结束了的)活动。IhavewrittenabookonUFO.Itwasfinishedlastyear.我写了一本关于UFO的书，这本书是去年写完的IhavebeenwritingabookonUFO.Ishouldbeabletofinishitearlynextyear.我一直在写一本关于UFO的书，我应该在明年年初就能写完。②现在完成时陈述事实；而现在完成进行时则强调动作在不久以前持续进行的情景,并带有感情色彩。Myfatherhaslosthiskeys.我父亲把钥匙丢了。(陈述事实)Myfatherhasalwaysbeenlosinghiskeys.我父亲老是弄丢自己的钥匙。(含责怪或无奈之意)③现在完成时既可用于状态性动词，也可用于动作性动词；而现在完成进行时通常只用于动作性动词。Ihavehadthiscomputerfor10years,withwhichIhavewrittenplentyofarticles.我已拥有这台电脑10年之久了，并用它写了大量的文章。Ihavebeenwritingarticleswiththiscomputerfor10years.10年来我一直用这台电脑写文章。④有少数动词(如：work、study、liveteach、stay等)在表示持续一段时间时用这两种时态含义差不多，只是用现在完成进行时更强调动作的持续性。—Howlonghaveyouworked/beenworkinghere?你在这儿工作多长时间了？—Tenyears.10年了。四、practice1.及时练习：Youshouldgotobed.You_________(watch)TVfor5hours.I_________(write)letterssince6o'clock.I_________(look)forhimeverywhere.Wherecanhebe?三年以来，我们一直学英语。_________________________sincethreeyearsago.近来他老是说厌倦了自己的工作。_________________________heistiredofhisworkrecently.在过去的几个月，西南地区的人们一直遭受严重旱灾的影响。Peopleinthesouthwesternareas_________________________inthepastfewmonths.(Suggestedanswers:havebeenwatching;havebeenwriting;havebeenlooking;WehavebeenstudyingEnglish;Hehasbeensaying;havebeensufferingfromseriousdrought)2.DoActivity2onPage86.Completethepassagewiththecorrectformoftheverbsinbrackets.(Suggestedanswers:1havebeenhearing 2hasbeenmaking 3ismoving4havebeenflying 5havebeengiven 6havebeenusing)3.DoActivity3onPage87.Lookatthechartsandmakesentencesusingthepresentperfectcontinuoustense.(Suggestedanswers:①Thenumberoftreeshasbeenincreasinginthelast20years.②Desertareashavebeenreducinginthelast20years.③Butterflypopulationhasbeenincreasing/hasbeenbecominglargerandlargerinthelast20years.)4.DoActivity4onPage87.Workinpairs.Talkabouthowtheenvironmentwhereyoulivehaschanged.Usethepresentperfectcontinuoustensewhereappropriate.五、Production1.Tourismandtheenvironment.Readtheshortpassage.Ecotourismisatypeoftourismthatconservestheenvironment.Itencouragespeopletoberesponsibletravellersandinvolveseducatingthemaboutthenaturalworld.ForcountriessuchasCostaRica,KenyaandNepal,ecotourismisanimportantpartoftheeconomy.Someecotourismholidaysinvolvevoluntarywork.Suchasplantingtreesorcountingendangeredanimals.2.DoActivity5onPage87.Listentotheconversationandchoosetheplacementioned.(Suggestedanswers:bc)3.DoActivity6onPage88.(1)Listenagainandcompletethenotes.(Suggestedanswers:1hikeinthemountains 2count 3hardwork 4elephants5lieonthebeach 6anicehotel 7aone-daybiketour)(2)Workinpairs.Discusswhattypeoftravelyouprefer.4.DoActivity7onPage88.Completetheboxeswiththeexpressionsfromtheconversation.(Suggestedanswers:Persuadingothers:Thefactisthat...Wouldn'tyouagreethat...?Iagree,but...Compromising:Let'sfindacompromise.Let'smeetinthemiddle.Asacompromise,…)5.DoActivity8onPage89.(1)Completethepassagewiththeexpressionsinthebox.(2)Listentothepassageandcheckyouranswers.(Suggestedanswers:1createopportunitiesfornewbusinesses 2helpthelocaleconomy3noteco-friendly 4disturbthewildlife 5providemorejobs 6useupnaturalresources 7highercarbonemissions)6.DoActivity9onPage89.CompletetheboxeswiththeexpressionsinActivity8.(Suggestedanswers:Advantages:attractingmoretouristscreatingopportunitiesfornewbusinesseshelpingthelocaleconomyprovidingmorejobsforpeoplelivinginthearea补充：raisingawarenessofprotectinglocalwildlifeprovidinglocalswithachancetoexperienceothercultures…Disadvantages:noteco-friendlydisturbingthewildlifeusingupnaturalresourceshighercarbonemissions补充:pollutingins