初二英语外研版（下）学案Module4NewtechnologyUnit2Ifasnakebiteyou,takeaphoto.学习目标1、知识目标：①Wordsandphrasesandimportantsentences.②语法：if从句2、能力目标：利用所学知识，运用if表达“如果”。通过阅读，猜测大意。3、情感目标：面对危险，冷静沉着。一、预习导航（一）根据句意及首字母提示完成单词1.Youranswerareallr________,youareexcellent.2.Wehavewaitedhimforalongtime,buthedoesn’ta________.3.Tomisinhospitalbecauseadogb_______himinthelegyesterday.4.Thedoctortoldmetotakethem_______threetimesaday.(二）workinpairs.Talkaboutwhatyoucanuseamobilephonetodo?二、NewlessonStepⅠLookatthepicture.Saywhat’shappening?StepⅡReading(一).Readthepassagequickly,thenchoosethebestanswer.知识点学习1.Itmaysaveyourlife.saveone’slife挽救某人的生命Hehurtbadly,andthedoctorscouldn’tsavehislife.他伤得太重了，医生不能挽救他的生命。save1)抢救，挽救，拯救e.g.Isavedtheanimalsfromtheflood.我把动物从洪水中救出来。2)节省；省下e.g.Weshouldsaveoil,orelsetherewon'tbeanyleftintheworld.我们应该节约用油，否则世界上就不会有油留下了。2.Hepickedupadishfromthetable,andsuddenlyasnakeappeared…andbithimonthehand.他从桌子端起一个盘子，突然，一条蛇出现了…并咬伤了他的手。pickup：totakeholdofandlift捡起，拾起宾语为代词it或them时，必须放在中间。“Whosebookisit?”hesaid,andthenhepickeditup.bitehimonthehand“咬伤了他的手”动词+宾语+介词in/on+身体某一部位。Hewasangryandbitmeonmyhead.他很生气，并打了我头。Theballhithimintheface.2球打在他的脸上。3.Itclimbedoutoftheboxandhidunderthedish.它（蛇）从箱子里爬出来，藏在盘子下。Outof意思为“在…外”，如：Listentomecarefully,Don’tlookoutofthewindow.认真听我说，别往窗外看。Themanistoofatandhecan’tgetoutofthecar.这个人太胖了，他不能从车里出来。4.Anyway,MrsJacksonstayedcoolandhetookaphotoofthesnakewithhismobilephone.无论如何，杰克逊先生保持冷静，他用他的手机照了一张蛇的相片。stay在句中作连系动词，表示“保持”，相当于keep,后接形容词。“stayedcool”“保持冷静，保持凉爽”。如：Don’tbecomeangry.Staycool.Idon’tknowhowtostaycoolinhotsummer.5.Thenhischestbegantohurt.然后他的胸部开始发痛。hurt“伤害，受伤”，可作及物动词或不及物动词。如：MyheadhurtbadlyandIdidn’tsleepallnight.Ifellofmybike,butIdidn’thurtmyself.6.Whentheyknewthekindofsnake,theycouldgiveMrJacksontherightmedicine,andhelefthospitalthenextday.当他们知道蛇的类型的时候，他们可以给杰克森先生合适的药，第二天他就出院了。kind“种；类；好心的；善良的”akindof一种allkindsof各种各样的medicine“药”，为不可数名词，没有复数。引导词if,unless（如果不，否则）特点从句用现在时态代替将来时，主句常为将来时态或祈使句或含有情态动词的句子。举例1.Ifyoucome,I’llgotomeetyouatthestation.如果你来，我到车站去接你。2.Unlesstheyinviteme,Iwon’tgothere.除非他们请我，否则我不会去那儿的。注意事项1.“祈使句+引导的结果从句”句式，祈使句在意义上相当于条件状语从句。常与if引导条件状语从句转换。Useyourhead,thenyouwillcomeupwithanidea.=Ifyouuseyourhead,you’llcomeupwithanidea.2.unless从句可与if的否定句式互换。DonotcomeunlessIcallyou=DonotcomeifIdon’tcallyou.我不叫你来，你就一定别来。（二）.Readcarefullyandfindoutthefollowingphrases:(1)用手机拍一张蛇的照片。(2)挽救你的生命(3)咬伤了他的手(4)从箱子里爬出来（5）试图把它捡起来(6)保持冷静(7)医生们不知是哪种蛇，所以也无所适从(8)给他对症下药(9)如果蛇在照相时不笑，不用担心。（10）建议人们干某事（三）.DiscussingroupsDiscusstheproblemsyouhaveingroups.StepIIIRetelling(复述)Oneday,acookwasw_______inareestaurantkitchen.Hep__...
