Unit3TeenagersshouldbeallowedtochoosetheirownclothesSectionB1a-4学案一．教学准备TeachingAims：■重点词汇：pierce，license,silly,earring,■重点短语：gooutwithfriends,everynight,drive,havepart-timejobs,gettheirearspierced,choosetheirownclothes,toowild,tooyoung,toosilly,notseriousenough，notoldenough，notcalmenough，insteadof,stayupTeachingFocus：■重点句型：①Teenagersshouldbeallowedtochoosetheirownclothes.②Sixteen-year-oldsshouldnotbeallowedtodrive.Teachingdifficulties：Tohavearevisionoftheknowledgewehavelearnt.二、资料准备：课本P20SectionB1a–4三、学习过程：StepOne:找出下列词组短语1、与某人一起外出____________________2、从事业余工作________________3、打耳眼_____________4、选择自己的衣服___________________5、驾驶执照_____________6、去市场_____________7、足够严肃_____________8、年龄足够大_____________9、足够沉着_____________10、十六岁的孩子们_________________11、允许某人做某事__________________12、允许做某事_____________13、理发_________14、停止做某事______________15、停下手中的事情去做另一件事________________16、在周末________17、代替做某事_______________设计意图：学习新单词和短语，为阅读短文打好基础。StepTwo：知识点回顾:1.allow“允许，许可”allowdoing“允许做某事”.allowsb.todosth“允许某人做某事be(not)allowed(todosth).“（不）被允许(去干某事)例如：1）.Shemefishing.她允许我去钓鱼。2.)Theydon’tinthereadingroom他们不会允许你在阅览室里抽烟。3).Smokinginthereadingroom.阅览室禁止吸烟。4).Teenagersshouldn’t.青少年不应该被允许吸烟。2.Teenagersshouldbeallowedtochoosetheirownclothes.青少年应该被允许选择自己的衣服。这里shouldbeallowed是含有情态动词should的被动语态，其结构是：“should+be+及物动词的过去分词”，意为“应该被…”。例如：1).Sixteen-year-oldsshouldn’tbeallowedtodrive.译为：2).Theworkshouldn’tbegivenup.译为:3)Childrentospeakthetruth.应该教导孩子讲实话。4)Whatschoolrulesdoyouthink(应该被改变)？4.句中gettheirearspierced“穿耳孔”，属于get+宾语+过去分词结构，即get/havesth.done常用于表示请或让某人做某事。1.Hehadhisbike________(repair)yesterday.2.I’llhavemyhair________(cut)tomorrow.5.instead和insteadof“代替，而不是”Weeatrice_______________noodles.Theywentswimminginsteadof______(watch)thefootballmatch.Thewaterhereisnotgood,soIdrinkcoffee___________.6.主语+seem+todo=Itseems+that从句Heseemstobebusy.=It____________________________.7.---Wehavealotofrulesatmyhouse.---Sodowe.“Sodowe.”是倒装句，其结构是“so+系动词/助动词/情态动词+主语”，意思为“也”表示前者所情况同样适用于后者，时态应和上一句保持一致，前后两个句子的主语指不同的人或物。如：1.IlikelearningEnglish,andsomysister.2.Youcandrive.Jack(杰克也会)。3.Youhavealotofbeautifulstamps.Ialsohavelotsofbeautifulstamps.（同义句改写）Youhavealotofbeautifulstamps.I.4.HehasbeenlearningEnglishforaboutsixyears,I..拓展延伸：1）如果前面的句子是否定句，则要将so改为neither或nor.如：Ifyoudon’tgotothepark,neither/norwillI.2)“so+主语+系动词/助动词/情态动词”，表示对前面所述情况作进一步肯定，意为“确实如此”，前后两个句子说明同一个人或物。如：1.---Mariaisawarm-heartedgirl.---Sosheis.（他确实是。）2.—Mydaughteratealotoficecreaminschool.---Yes,.(A.sodidsheB.soshedidC.sowasshe.)设计意图:通过这一活动，使学生掌握词语的用法。四：反馈达标：句型转换1.Heseemstohavemanyfriends.(改写句子，句意不变)___seems_____he____manyfriends.2.Ithinkyourhomeworkshouldbedoneatonce.(改为否定句)I______thinkyourhomework_______bedoneatonce.3.Peopleshouldallowteenagerstospendsometimeplayingwiththeirfriends.(改为被动语态)Teenagersshould____________tospendsometimeplayingwiththeirfriends.4.Wemustcleanourclassroomeveryday.（改为被动语态）Ourclassroom_____________________byuseveryday.（改为被动语态）五、教学反思：
