广州英语上海牛津版八年级下册Unit_7_Language课件(精心制作_有价值).ppt

Ifyou rehappyandyouknowit clapyourhands Ifyou rehappyandyouknowit clap 拍手 yourhands Ifyou rehappyandyouknowit Neverbeafraidtoshowit Ifyou rehappyandyouknowit clapyourhands Ifyou rehappyandyouknowit stomp 跺脚 yourfeet Ifyou rehappyandyouknowit stompyourfeet Ifyou rehappyandyouknowit Neverbeafraidtoshowit Ifyou rehappyandyouknowit stompyourfeet Ifyou rehappyandyouknowit wink 眨眼 youreye Ifyou rehappyandyouknowit winkyoureye Ifyou rehappyandyouknowit Neverbeafraidtoshowit Ifyou rehappyandyouknowit winkyoureye singasong Ifyouarehappy Unit7MindandMemory Language Ifsentences if 如果 是否 引导条件状语从句 意为 如果 引导宾语从句 中文解释为 是否 youstandintherain If whathappens yougetwet youstandintherain If youstandintherain if Yougetwet youtakeafishoutofthewater If whathappens itdies youtakeafishoutofthewater If youtakeitoutofthewater if Afishdies youcoolwater If whathappens itturnsintoice youcoolwater If youcoolit if Waterturnsintoice cool If youboilwater whathappens boil steam If youboilwater itbecomessteam Waterbecomessteam if youboilit If youheatmetal whathappens heat steam If youheatmetal itmelts Metalmelts if youheatit metal 金属 melt 熔化 If youputwoodintowater itfloats 漂浮 If youplantseedsinsoil theygrow If youdropaglass itbreaks If youdonotgiveplantswater theydie A1Matchthepossibleactionswiththeresultstomakeifsentences PossibleactionResult 1 Ifyoutakeafishoutofwater a itmelts 2 Ifyoucoolwater b itdies 3 Ifyouboilwater c theygrow 4 Ifyouheatmetal d itturnsintoice 5 Ifyouputwoodintowater e theydie 6 Ifyouplantseedsinsoil f itbreaks 7 Ifyoudropaglass g itbecomessteam 8 Ifyoudonotgiveplantswater h itfloats P103 Aifsentence actionswithdefinite 必然发生 result 1 if引导的条件句中 if从句可以放在前面或者后面 如果放在前面 句子结尾要加一个逗号 Ifyoucoolwater itturnsintoice Waterturnsintoiceifyoucoolit if从句 if从句 主句 主句 2 当表示客观事实 结果时 主句和从句都用一般现在时 Waterturnsintoiceifyoucoolit 1 Ifyou stand intherain you get wet 2 Iffish live withoutwater they die stand get live die 气球爆炸的瞬间 burst apin balloon stickapinintoit A2 Completethesesentenceswiththewordsinbrackets Addcommaswherenecessary 1Ifyou water ice turns heat it into 2Aballoon it pin a if stick you bursts into 3Ifyou water steam into cool turns it 4Metal it you heat melts if 5Wood water you into put if floats it 6Aglass it drop you breaks if heatice itturnsinto burstsifyoustickapininto coolsteam itturnsinto meltsifyouheat floatsifyouputitinto breaksifyoudrop P104DoA2byyourselves A Ifsentences actionswithdefiniteresults If从句 一般现在时 主句 一般现在时 或 主句 一般现在时 if从句 一般现在时 当表示客观事实 结果时 主句和从句都用一般现在时 结构一 Sheishard working ShewillgetA Lookandsay If sheishard working shewillgetgoodgrades Lookandsay If Ihavemuchmoney Iwillbuyabighouse travelallovertheworld buylotsofdeliciousfood Lookandsay IfitissunnythisSunday WhatwillyoudoifitissunnythisSunday Iwillgofishing BIfsentences actionswithpossibleresults Inthesesentences theverbtensesaredifferent Theverbintheifclauseisinthesimplepresenttensewhiletheverbintheotherclauseisinthesimplefuturetense 当表示假设条件下有可能产生的结果时 主句用一般将来时 从句用一般现在时 但主句从句都表示将要发生的动作 结构二 If从句 一般现在时 主句 一般将来时 或 主句 一般将来时 if从句 一般现在时 Ifthepictureissilly strangeorcolourful youwillrememberitbetter 1 Isometimesforgettotaketherightbookstoschool 2 Iwasawayfromschooltoday Idon tknowwhattodoforhomework 3 Isometimesforgetwhichthingstobuyatthesupermarket 4 Ihategettingup Ialwaaysfeeltiredinthemoring 5 Idon tknowwhatthiswordmeans William ssisterisgivinghimadviceaboutsomeofhisproblems Matchthehalf sentencesincolumnAwiththoseincolumnB andcompleteheradviceforWillam sproblemsbelow Practice MatchonyourbookPage104 B if引导的条件状语从句 观察下列句子 总结if引导的条件状语从句的用法 例句 1 Ifyoustandintherain yougetwet 2 Yougetwetifyoustandintherain 3 Ifitdoesn traintomorrow Iwillplantsomeflowersinmygarden 4 Iwillplantsomeflowersinmygardenifitdoesn traintomorrow 总结 1 If表示 的意思 引导 状语从句 当表示条件成立就 必然 可能 有某种结果 常用于客观真理 时 主句和从句都用 时 例1 2 当表示条件成立就 必然 可能 有某种结果时 主句用 时 从句用 时 简称 主将从现 例3 4 如果 条件 必然 一般现在 可能 一般将来 一般现在 2 当if引导的从句放在主句前时 用 不用 逗号隔开两个句子 例1 3 当主句在前时 则 用 不用 逗号 例2 4 3 记记这个顺口溜吧 if条件句不一般 几个要点记心间 条件句 放在前 逗号要放句中间 条件句表可能 主句多用将来时 条件句表事实 主句常用现在时 不用 用 注意 If引导的条件状语从句时 从句谓语不能用将来时 这时if意为 如果 If引导宾语从句时 从句谓语可以用将来时 这时if意为 是否 BettywillvisittheHistoryMuseumifitdoesn traintomorrow Benwantstoknowifitwillbefinetomorrow 如果 是否 一 请判断下面句子的正误 如果有误 请更正在后面的横线上 1 Ifyouwilldomoreexercisethissummer youwillbeveryfit 2 Thecandleburns ifyoulightit willdo do 把逗号去掉 Testyourself 3 IwillbuildmanyschoolsforthepoorchildrenifIwinabilliondollars 4 Ifyoufreezewater itwillturnintoice 5 Myunclevisitsthemuseumifhewillhavetime 正确 willturn turns visits willvisit willhave has Testyourself 1 HewillhelpmewithmyMathsifhe free A wasB willbeC wouldbeD is2 Idon tknow hewillcometomorrow hecomes I lltellyou A if WhetherB whether WhetherC if ThatD if If Testyourself 二 选择正确的选项 3 I dliketoplaybasketballwithmygoodfriendstomorrowiftheweather nice A wasB hasbeenC willbeD is4 Ifyouheatice it intowater A willturnB turnC turnsD turned5 IwaswatchingTV someoneknockedatthedoor A whenB whileC ifD though 6 Jennyheardthedoorbell shedidn tanswerit A Although B But C Though butD Although but7 Myfathertoldmethathe backhomethenextweek A willcomeB wouldcomeC cameD comes 三 用括号中的动词的适当形式填空 1 Pleasetellhermytelephonenumberifshe want toknow 2 Wangdoesn tknowifthere be anEnglisheveningnextweek 3 Willyoucomeandstaywithusforawhileifyou finish doingyourhomework 4 Mikeaskedmeifwe ask anyquestionsthenextclass wants willbe finish wouldask 四 根据中文意思完成句子 1 如果你不运动 你会变胖 Ifyou exercise you 2 如果我早完成作业 我会早点睡 I tobedearlyifI myhomeworkearly 3 如果你把水煮开 它会变成水蒸气 Ifyou water it steam don tdo willgetfat willgo finish boil turnsinto Let slistentoaninterestingstoryandtestyoumemory egg hen chicken hatch孵 Testyoumemory Sevenquestionsforyou 1 Whatwillhappeniftheyoungladysellsallhereggs 2 Whatwillshedoifshehasalotofmoney 3 Whatwillhappenifshehasmorehens 4 Whatwillshedoifshebecomesrich 5 Whatwillhappenifshewalksonthestreetinherniceclothes 6 Whathappenedtoheratlast Didherdreamcometrue 7 Whatdoesthesentence Don tcountyourchickensbeforetheyarehatched mean Whatdoesthesentencemean Don tcountyourchickensbeforetheyhatched A 不要赶时髦B 不要做无意义的打算 P106BSpeakupB2 Imagineyouhavewon 10 000inaTVquizshow Workingroupsofthree Decidewhatyouwilldowiththemoney Thentelltheclassaboutyourdecision Youmaywishto keepitallforyourself 全部留下来给自己 givesometocharities 慈善机构 givesometopeopleinneed 需要 givesometoyourfamilyandfriends givesometoyourschool getadvicefromotherpeople If Iwin 10 000inaTVquizshow Iwill BSpeakupB1 DaydreamsB1Workingroups Readtheifsentencesinthethoughtbubble Theneachmemberofthegroupshouldcompleteasentenceuntilalleightsentencesarefinished Rememberthateachsentenceshouldbeconnectedwiththeonebeforeit Writethesentencesdownandreadthemtotheclass IfIpassmyexams I llleaveschool IfIleaveschool I llgetajob IfIgetajob I llworkasa IfIworkasa IfI IfI IfI IfI Salesperson salesper