2022年人教新目标版七年级上册英语Unit 5 教案（共计18页）

Unit5Doyouhaveasoccerball?一、单元教材分析本单元主要学习动词have的一般现在时的用法；使用do和does引导的一般疑问句的构成以及简单回答。本单元围绕“和朋友一起欢度时光”这一话题安排了三个任务：一是列举所学的运动项目，从中挑选出各自喜欢的体育项目，并说明原因，目的是巩固并新学一些体育项目的名词；二是让学生互相询问所爱好的运动，并根据情况发出邀请，学会用have对物品的所属进行提问与回答，掌握用do和does引导的一般疑问句的构成及使用，了解用Let’s提建议的句型；三是写作，把任务一、二的完成情况写成日记，进一步复习、巩固所学的语言目标。通过本单元的学习，学会用have对物品的所属进行提问与回答；学会用let’s…句型提建议；能够谈论自己喜欢哪些球类运动，不喜欢哪些球类运动及原因；能够谈论怎样和自己的朋友度过一段愉快的时光。二、单元学情分析本单元的主题是使用have对物品的所属进行提问及回答，以掌握行为动词在一般现在时中的构成和使用；同时引导学生使用所学的句型谈论自己在球类运动中的喜好。行为动词在一般现在时的肯定句、否定句和一般疑问句中的构成和使用是初中英语教学中非常重要的内容，本单元知识的掌握程度将直接影响今后的英语学习。学生在以前的学习中已经掌握了be动词在一般现在时中的构成和使用，在学生的头脑中也已经形成了一个模式，这种模式将直接影响学生对本单元知识内容的接受，所以教师在教学中一定要善于引导，以免学生养成不良习惯。该部分学习内容贴近学生的生活，谈论的主题是符合学生喜爱运动的心理，极易于激发学生学习英语的欲望和兴趣，使他们乐于参与各种英语实践活动。三、单元教学建议采用自主学习、小组合作学习、Discussionandguess和Classifying的学习策略，利用教学图片、幻灯片、画纸和蜡笔等来展开课堂Pairwork问答式的口语交际活动和小组活动，使用have对物品的所属进行提问及回答。本单元的教学法建议：语音教学——让学生进行模仿操练；词汇教学——采取演示讲解的方式进行教学，让学生进行情景操练、反复使用；口语教学——采取pairwork问答式的口语交际活动互相操练练习；阅读教学——让学生学会抓住主要词汇和句型；听力教学——采取图文配对和对话选择的方式；写作教学——以填空、造词为主；语法教学——总结规律、模仿操练。四、单元课时分配本单元可用4课时完成教学任务：SectionA(1a-2d)用1课时18SectionA(GrammarFocus-3c)用1课时SectionB(1a-2c)用1课时SectionB(3a-SelfCheck)用1课时18Period1SectionA(1a-2d)一、教学目标：1.语言知识目标：1)能掌握下列词汇：do(does),have,tennis,ball,ping-pong,bat,soccer,soccerball,basketball,let,us,let'sgo,we,late,has,get2)学会用have对物品的所属进行提问以及应答，学会使用do和does引导的一般疑问句：①—Doyouhaveabaseball?—Yes,Ido.No,Idon't.②—Doesshe/hehaveatennisball?—Yes,she/hedoes.No,she/hedoesn't.③—Dotheyhaveasoccerball?—Yes,theydo./No,theydon't.3)学会用Let’s…提建议。2.情感态度价值观目标：利用学生喜爱运动的心理，激发学生学习英语的欲望和兴趣，使他们乐于参与各种英语实践活动。在小组活动中，培养学生团结协作精神。二、教学重难点1.教学重点：1)通过运用have对物品的所属进行提问以及应答，来掌握一些运动项目的词汇。2)在询问对方是否有某物的对话中学会使用do和does引导的一般疑问句。3）学会用祈使句来向对方提出建议。2.教学难点：学会使用第三人称单数的一般疑问句Does…?及回答做对话。三、教学过程Ⅰ.Warming-upandrevision1.GreetingtheSs.Checkthehomework.2.Review3ainpage24.(Holdingaradio)T:Doyouhavearadio?Ss:Yes,Ido.T:Whereisit?Ss:It'sonthedesk.T:Doyouhavetapes?Ss:Yes,Ido.18T:Wherearethey?Ss:They'reinthebookcase?…Ⅱ.Presentation1.Presentthekeyvocabulary.(Showabasketballtotheclass.)T:What’sthisinEnglish?S1:It’sabasketball.T:Yes,youareright.Readafterme.B-A-S-K-E-T-A-B-L-L,basketball.Ss:B-A-S-K-E-T-A-B-L-L,basketball.(Showthestudentsotherobjects.Teachthenewwords“soccerball,ping-pongball,volleyball,tennisbat,ping-pongbat”inthesameway.)T:Readthewordstogethertwice.Ss:…2.Lookatthewordsin1aandmatchthewordswiththethingsinthepicture.T:Number1is(a),tennisball.What’sNumber2Matchthem.Askonestudenttoshowtheanswersandcheckthem.3.Presentthekeystructure.Presentthesequestionsandanswers.(Pointtoastudentwhohasapencilbox.)T:Doyouhaveapencilbox?S1:Yes,Ido.(Nodyourheadyes)T:(AskS2)Doesshehaveapencilbox?S2:(HelpS2answer)Yes,shedoes.T:Doyouhaveabasketball?S1:No,Idon’t.(Shakeyourheadno)T:(AskS2)Doesshehaveabasketball?S2:(HelpS2answer)No,shedoesn't.Practicethedrill“Doyouhavea…?”,"Doeshe/shehavea…?"inpairs.Youcanuseyourschoolthingsandtheseballs.Lookatthemodel,thenpracticelikethis.Model:18S1:Doyouhaveabasketball?S2:Yes,Ido.S3:Doseshehaveabasketball?S4:Yes,shedoes.S1:Doyouhaveasoccerball?S1:No,Idon’t.S3:Doseshehaveasoccerball?S4:No,shedoesn't.(Studentsworkinpairs.)Ⅲ.ListeningT:Lookatthefouritemsof1binthepictures.Listentotheconversation.(Playtherecordingof1bthefirsttime.Studentsonlylisten.)T:Listentotheconversationandcirclethewordsyouhear.(Playtherecordingagain.)T:Checktheiranswers.S1:…S2…Ⅳ.Pairwork1.Readtheconversationsin1c.(Askstudentstorepeat.)2.Lookatthepicturein1aandpracticetheconversationwitheachotherinpairs.S1:Doyouhave…?S2:Yes,Ido.S1:Doyouhavea…?S2:No,Idon’t.3.Workingroupsoffourandusethepicturetopracticethesimilarconversationswiththenewwords.(basketball,baseballbat,soccerball,volleyball,computer,ping-pongbat,baseball)T:Askandanswerthequestionsasmanyasyoucan.S1:Doyouhavea…?S2:…S1:…S2:…Ⅴ.Listening181.T:Lookatthepicturesin2bandnamethem.Whatarethese?(Pointatthebaseball,basketball,soccerball,volleyball.)Ss:Theyare…T:Therearefourchildrenintheconversations.Whoarethey?Pleaselistenandfindtheanswer.(Playtherecorderforthefirsttime.)S:…T:I’llplaytherecorderforthesecondtime.Listenandnumberthepictures(1-4).(Studentslistenforthesecondtime.)T:Listentotheconversationin2b.Matchthepeoplewiththeballs.(Studentslistenandmatch.Teachercheckstheiranswer.)Ⅵ.Pairwork1.T:Let’slookatthepicturein2a.DoesJanehaveatennisball?S1:No,shedoesn't.T:DoesPaulhaveasoccerball?S2:No,hedoesn't.T:Doeshisbrotherhaveasoccerball?S2:Yes,hedoes.(Askmorestudentstomakeaconversation.)T:Makeconversationswiththingsinthepicture.S:…2.Asksomepairstoactouttheirconversations.Ⅶ.Presentation(Showasoccerballtoclass.)T:Let’splaysoccerballafterclass,OK?S1:OK.T:Let’splayping-pong.S2:OK.T:Weoftenusethedrill“Let’s…”tomakeasuggestion.Ifyouwanttodoit,youmaysay“OK./Thatsoundsgood./Allright…”Ifyoudon’twanttodoit,youmaysay“No,Idon’thavea…”(Theteacherwritesthedrillonthebackboard.)A:Let’splay…18B:No,Idon’thavea…A:Well,let’splaybaseball.B:OK.Let'sgo.Ssreadtheconversationandtrytorememberthem.Ⅷ.Role-play1.CindyandHelenwanttoplaybaseball.Nowreadtheconversationandmatchthethingswiththeirrightplaces.baseballonthechairbaseballbatinCindy'sbagCindy'sjacketBillhasit.2.Readtheconversationaftertheteacher.3.Practicetheconversationwithyourpartner.4.Asksomepairstoactoutthedialogueinfrontoftheclass.5.评价：（让学生们对自己的表现及语言表达能力进行自我评价，在小组内评价，然后进行评出最优秀的小组。并鼓励学生们下一次争取做最优秀的小组及个人。）Homework:1.Reviewthenewwordswelearnedtoday.2.Makeasurveyaboutyourparents’sportscollection.NamecollectionMotherfather18Period2SectionA(GrammarFocus-3c)一、教学目标：1.语言知识目标：1)进一步学习通过运用have对物品的所属进行提问以及应答。2）继续学会do和does引导的一般疑问句，理解并掌握英语句子中的人称和数，掌握并熟练运用下列句型。①—Doyouhaveabaseball?—Yes,Ido.No,Idon't.②—Doesshe/hehaveatennisball?—Yes,she/hedoes.No,she/hedoesn't.③—Dotheyhaveasoccerball?—Yes,theydo./No,theydon't.3)能用Let’s…句型来提建议。2.情感态度价值观目标：利用学生喜爱运动的心理，激发学生学习英语的欲望和兴趣，使他们乐于参与各种英语实践活动。在小组活动中，培养学生团结协作精神。二、教学重难点1.教学重点：1)总结do和does引导的一般疑问句及其回答语。2)在实际生活情景中能正确运用所学的句型谈论自己或他人所拥有的东西。3)理解并掌握英语句子中的人称与数，让学生牢记第三人称单数。2.教学难点：1）在实际生活情景中能正确运用Do…?或Does…?句型谈论自己或他人所拥有的东西。2)理解并掌握英语句子中的人称与数，让学生牢记第三人称单数。三、教学过程Ⅰ.Warming-upandrevision1.GreetingtheSs.Checktheirhomework.(LetsomeSsreporttheirparents'sportscollection)S1:Myfatherhasabasketballandasoccerball.Mymotherhasaping-pongbatandthreeping-pongball.S2:Myfatherhastwovolleyballs,threesoccerballsandfivebaseballs.Mymotherhasatennisballandatennisbat.(IssomeSsmakemistakes,correcttheirmistakes)2.LettheSsworkingroups(eachgrouphasthreeSs).Reviewthesentencestructureswelearned.S1:Doyouhaveabasketball?18S2:Yes,Ido.S1:Doesshehaveabasketball?S3:Yes,shedoes.S1:Doyouhaveatennisbat?S3:No,Idon't.S1:Doeshehaveatennisbat?S2:No,hedoesn't.…Ⅱ.GrammarFocus.1.阅读指导：1）have意为“有”，表示某人所有某物。have在句子中有两种形式，即have和has。have用于第一人称（I,we）、第二人称（you）以及第三人称复数（they）和其他复数名词；而has则用于第三人称单数（he,she,it）和单数名词。如：Ihaveanapple.我有一个苹果。Maryhasanorange.玛丽有一桔子。2）have/has句子的一般疑问句是在句首加助动词do或does，句尾用问号构成。除第三人称单数前用does外，其他都用do。第三人称单数前加does后，句中的谓语动词has应改为have。作简略回答时，肯定回答为：“Yes,主语+do/does.”，否定回答为：“No,主语+don’t/doesn’t.”。2.ReadGrammarFocusandfinishoffthesesentences.①你有一个棒球吗？____you_____abaseball?②是的。___,I____.不，没有。_____,I______.③你有一个乒乓拍吗？____you_____aping-pong_____?④没有。我有一个乒乓球。_____,I______.I_____aping-pong_______.⑤她有一个网球吗？____she_____atennis?⑥是，她有。没有。她有一个棒球。_____,she_________.____,she________.She____a______.⑦他有一个足球吗？_____he_____a_____ball?⑧没有。他有两个乒乓球拍。____,he________.He____twoping-pong______.⑨他们有一个篮球吗？___they_____abasketball?⑩是的，有。没有。他们有一个排球。Yes,__________.____,they______.They______a________.3.写出下列表达方式的缩写形式18①donot=________②doesnot=______③weare=______④letus=________.Ⅲ.Writing1.指导：英语句子中的人称和数人称汉语主格助动词宾格单数第一人称我Idome第二人称你youyou第三人称他,Eric等hedoeshim她,Linda等sheher它itit复数第一人称我们wedous第二人称你们youyou第三人称他们,她们,它们theythem2.Ssdiscusswiththeirpartnerandfillinthechart.3.Checktheanswer.Ⅴ.Practice1.指导：实义动词的一般疑问句结构。①当主语是第一人称/第二人称/第三人称复数时，句型结构为：Do+you/they/we/…+动词原形+…？不管用什么动词，它的回答是固定的。肯定回答：Yes,I/they/we…do.否定回答：No,I/they/we…don’t.②当主语是第三人称单数时（she,he,it,Linda,Bob及名词的单数形式anapple），句型结构为：Does+she/he/it/…+动词原形+…？不管用什么动词，它的回答是固定的。肯定回答：Yes,she/he/it…does.否定回答：No,she/he/it…doesn’t.2.Note:①play+球类意为“玩、打……”playsoccer,playvolleyball,playbasketball,playping-pong②Thatsoundsgood.那听起来不错。sound连系动词，“听起来”，后跟形容词。Thatsoundsgreat.那听起来很棒。3.Sscompletetheconversationswiththeirpartner.184.Checktheanswerswiththeclass.(Letsomepairsreadtheconversation)4.Sspracticetheconversationwiththeirpartnerthenactoutthedialogue.Ⅵ.Game(Rememberinggame)1.T:Look!ThisisBob'sroom.Hehasmanythings.Lookatthethingsinhisroomforthreeminutes.Thencloseyourbooksandaskandanswerquestionswithyourpartner.2.Model:S1:Doeshehaveasoccerball?S2:Yes,hedoes.S1:Doeshehaveacomputergame?S2:Yes,hedoes.S1:No,hedoesn't.You'rewrong.(ThenS2askS1)S2:Doeshehaveavolleyball?S1:Yes,hedoes.…Homework1.ReviewtheGrammarFocus.2.Completetheconversationafterclass.Mike:Hi,Tony.Let’s______ping-pong!Tony:______soundsgood,Mike.Mike:Doyou______aping-pong______?Tony:Oh,no,Idon’t.Mike:______yoursisterhaveone?Tony:Yes,shedoes.Hi,Gina!Where______yourping-pongbat?Gina:It’s_____thedesk.Tony:OK!_____goandplay!18Period3SectionB1a-2c一、教学目标：1.语言知识目标：1）掌握下列词汇：interesting,boring,fun,difficult,relaxing,watchTV,student,sport,playsports,to,same,love,with,them,only,like,easy,after,class,classmate2）会用句型Let's…来提建议。3）能用所学的形容词来表达自己对某项运动项目的看法。Thatsounds…4）阅读有关体育用品收藏的小短文，并能获得相关信息。2.情感态度价值观目标：通过阅读有关运动的文章和对话,使学生更加热爱体育活动并培养一种适合自己的体育爱好。二、教学重难点1.教学重点：1）学会用Let’s…提建议，并能够谈论自己对某球类运动的简单看法。2）引导学生进行听力和口语交际训练，来逐步学会用Let’s…提建议。3）引导学生进行阅读训练，来掌握行为动词一般现在时的肯定句、否定句的结构，尤其是单三形式的变化。2.教学难点：行为动词一般现在时的肯定句、否定句的结构，尤其是单三形式的变化。三、教学过程Ⅰ.Warming-upandrevision1.GreettheSs.Checkthehomework.(Letsomepairsreadouttheirconversation.Correctthemistakestheymake)2.Reviewthechartofpronouns.(Showthechartonthescreen)人称汉语主格助动词宾格单数第一人称我Idome第二人称你youyou第三人称他,Eric等hedoeshim她,Linda等sheher它itit18复数第一人称我们wedous第二人称你们youyou第三人称他们,她们,它们theythem3.LetSslookatthepicturein3a.Asksomepairsaskandansweraboutthepicture.S1:Doeshehaveasoccerball?S2:Yes,hedoes.S1:Doeshehaveacomputergame?S2:Yes,hedoes.S1:No,hedoesn't.Ⅱ.Presentation1.(Showthepicturewhichaboyisdoinganinterestingthingonthescreen.)Learnthenewwords,interesting(Showotherpicturesonthescreen)learnthenewwords:boring,fun,difficult,relaxing,easy,inthesameway2.(Showsomeactivitypicturesonthescreen)Learnthenewphrases:"watchTV","gotothesameschool","lovesoccer","afterclass"and"playsports"3.(Showsomepicturesofstudentsonthescreen)Learnthenewwords"student","classmate"4.LetSsreadthenewwordsandphrasesandtrytorememberthem.5.Readthewordsin1a.(Pointtothefivewordsin1aandaskstudentstorepeateachone.)Ss:interesting,fun,relaxing,boring,difficult.(LetsomeSsexplaintheChinesemeaningofthem.)Thenmatcheachpicturewithoneofthewords.(Pointtothefivepicturesandaskstudentstomatchthem.)Correcttheanswers.Ⅲ.Listening1.Nextwe’lllistentoaconversation.Herearetwoboysintheconversation.Whatdotheywanttodo?Listen.(Playtherecordingthefirsttime.)(Forthefirsttime,studentsonlylisten.)2.Listenagainandcheckthewordsyouhearin1a.(Playtherecordingagain.)183.Checktheanswers.4.Practiceinrecognizingspecificvocabularywordsinconversationandinwritingthem.First,listentotherecordingin1b.WhatdoesPaulsayabouttheactivities?(Pointtotheblankswherethestudentswritetheiranswers.)(Playtherecordingthefirsttime.Studentsonlylisten.)T:Listentotheconversationandwriteawordfrom1aineachblank.(Playtherecordingagain.)T:Checktheanswers.S:…Ⅳ.Pairwork1.T:Actouttheconversationin1cinpairs.YouarePaul.YourpartnerisPaul'sfriend,Jenny.Talkabouttheactivitiesin1c.S1:Let’splaycomputergames.S2:Thatsoundsinterestingbut…S1:…S2:…2.Letsomepairsactouttheconversationinfrontoftheclass.Ⅴ.Presentation1.（Tholdsbasketballandanotherstudentholdsasoccerball）T:Ihaveabasketball,butIdon'thaveasoccerball.Hehasasoccerball,buthedoesn'thaveabasketball.2.Writethesentencestructureontheblackboard.形为动词have的否定句的构成：①第一人称/第二人称/第三人称复数人称+don't+have+某物②第三人称单数形式+doesn't+have+某物e.g.Idon'thaveawatch.Shedoesn'thaveatennisball.Ⅵ.Writing1.Findthesportswordsintheunit.Writetheminthecorrectcolumn.2.Makeareporttoyourpartnerfirst.S1:Ihaveasoccerball,avolleyball,twotennisballs,threeping-pongbat…18Idon'thaveabasketball,atennisbat,abaseballbat…3.Exchangethechartwithyourpartner.Reportyourpartner'ssportscollection.S2:Hehasasoccerball,avolleyball,twotennisballs,threeping-pongbat…Hedoesn'thaveabasketball,atennisbat,abaseballbat…Ⅶ.Reading1.Ourschoolmagazinemadeasurveyaboutsportscollection.Thisisthesurveyresults.Readthepassageandanswerthequestion:Whohasasoccerball?2.Ssreadthepassagequicklyandfindtheanswertothequestion.3.Checktheanswer.Letsomestudentssaytheiranswerandsaywhy?(指导：在读短文时，应重点抓住soccerball，通过对比文中的信息，从而轻松地就能知道答案。)Ⅷ.Reading1.Nowlet'sworkon2c.Whodoyouthinksaysthesesentences?Check(√)FforFrank,GforGinaorWforWangWei.Readthepassagecarefullyandchecktherightperson.2.Ssreadthepassagecarefullyanddiscusswiththeirpartner.3.指导：先读懂试题中每句话的意思，然后在短文中找和题目中句子意思相同或相近的句子，比如noteasy意为difficult。最后，再看这是对谁的调查，便能确认正确的人物。4.Checktheanswerwiththeclass.Homework1.Reviewthenewwordswelearninthispart.2.Fillinthischartonyourworkbook.Name:ThingstheyhaveActivitiestheylikeFrankBrownGinaSmithWangWei18Period4SectionB3a-Selfcheck一、教学目标：1.语言知识目标：1）复习巩固所学的有关体育运动的词汇、描述性形容词的词汇。2）进一步练习运用Do…?和Does…一般疑问句及回答做对话。3）进一步练习运用形为动词have的否定句的构成，初步理解运用but的用法。4）在实际情景中运用所学的知识来就人与物之间的所属关系进行问答。2.情感态度价值观目标：在教学中生生交流、师生交流会更融洽，会促进师生彼此间的了解。引导学生热爱体育运动，增强身体素质，让部分学生养成良好的运动习惯和收藏习惯。二、教学重难点1.教学重点：1）复习和巩固所学的行为动词一般现在时的一般疑问句及否定句结构，引导学生进行一些阅读和写作的练习。2）复习巩固描述性形容词：interesting，boring，fun，difficult，relaxing及一些运动项目。2.教学难点：引导学生运动所学的行为动词一般现在时的一般疑问句及否定句结构，进行一些写作的练习。三、教学过程Ⅰ.Warming-upandrevision1.GreettheSs.Checkthehomework.(showthechartonthescreen.)2.Reviewthesportswordsintheunit.ThenletsomeSsreportthesportsthingstheyandthethingstheydon'thave.S1:Ihaveasoccerball,avolleyball,twotennisballs,threeping-pongbat…Idon'thaveabasketball,atennisbat,abaseballbat…S2:Hehasasoccerball,avolleyball,twotennisballs,threeping-pongbat…Hedoesn'thaveabasketball,atennisbat,abaseballbat…3.Letsomemorepairsreporttheirreport.4.AsksomeSstrytoreadorretellthepassagein2b.Ⅱ.Writing1.Let'sworkon3a.Thisisasurveychart.Youhavetowritesomemorequestionsaboutsportsequipmentinthechart.Usingthesentencestructure"Doyouhavea…?".182.Sswritethreeormorequestionsaboutsportsequipment.e.g.Doyouhaveabasketball?Doyouhaveabaseballbat?Doyouhaveaping-pingbat?Doyouhaveavolleyball?Ⅲ.SurveyNowexchangebookswithyourpartner.Answerhisorherquestionsin3a.Youcanonlycheck(√)oftheanswers.Ⅳ.Writing1.Lookattheinformationin3a.Writeaboutyourselfandyourpartnerwithbut.Ssreadthefirsttwosentencesandtrytowritetheirownsentencesaccordingto3a.2.指导：①but是一个转折连词，表示意思上的转折，常用来连接两个句子。在我们的例句中，but连接的两个句子，一个表示某人有某物，另一个表示某人没有某物。②同学们注意否定的结构：Idon'thave…;He/Shedoesn'thave…3.Sswritetheirownsentencesthenreporttheirsentencestotheirpartner.4.AsksomeSsreporttheirsentencestotheclass.Ⅴ.SelfCheck11.Doyoulikesports?Welikesomesportsverymuch,butwedon'tlikeothersports.Wethinksomesportsareveryeasy,butwethinkothersportsareverydifficult.Forme,Ilovebasketball.It'sinterestingandeasy.Idon'tlovebaseball.It'sboringanddifficult.What'syouropinion?Nowlistallthesportsyouknow.Discusswithyourpartnerandwritewhatyouthinkofthem.2.FirstSslistallthesportstheyknow.Thendiscusswiththeirpartnerandwritewhattheythinkofthem.(interesting,boring,fun,difficult,easy…)3.AsksomeSsreporttheirliststotheclass.Ⅵ.SelfCheck21.Let'sworkonSelfCheck2.Lookatthechart.Herearesomeshortconversations,butthequestionsaremissing.Readtheanswersthenthinkaboutthequestions.Thenwritedownthequestions.182.指导：应根据答语中的人称和数来确定问题的人称和数，还要根据答语中提示的事物来确定问题中的事物。例如：在第一题的答语中，答语是yes，可知上一句是一般疑问句；再由下一句mymomhasabaseballbat，可知问句的主语是yourmom，所问的事物是baseballbat。因此可确定问句是：Doesyourmomhaveabaseballbat?其它与此问题思考过程相同。3.Ssthinkandwritetheirownsentences.4.AsksomeSswritetheirsentencesontheblackboard.5.Checktheanswers.HomeworkMakeasurveyaboutthecollectionsinyourgroup.Thenwriteareport.NameCollectionHowmanyDescriptions板书设计：18