《条件状语从句》PPT课件.ppt

Revision AdverbialClauseofCondition条件状语从句 Ifyouarehappy Ifyouarehappyandyouknowitclapyourhands Ifyouarehappyandyouknowitclapyourhands Ifyouarehappyandyouknowitneverbeafraidtoshowit Ifyouarehappyandyouknowitclapyourhands Ifyouarehappyandyouknowitstompyourfeet Ifyouarehappyandyouknowitstompyourfeet Ifyouarehappyandyouknowitneverbeafraidtoshowit Ifyouarehappyandyouknowitstompyourfeet Ifyouarehappyandyouknowitwinkyoureye Ifyouarehappyandyouknowitwinkyoureye Ifyouarehappyandyouknowitneverbeafraidtoshowit Ifyouarehappyandyouknowitwinkyoureye Ifyouarehappy whatwillyoudo IfIamhappy Iwillsmile Ifyoubecomesad whatwillyoudo IfIbecomesad Iwillcry Sheisdoingherhomework Ifyouarehard working youwillgetgoodgrades Shegetsgoodgrades Ifyouplaycomputergamesonweekdays you llbeverytiredinclass yourparentswillbesad youwon tgetgoodgrades youreyeswillbepoor Shewillbelate Ifshe toschool she late Sheisgoingtowalktoschool walks will be Lead in 位置 从句可放在主句之前或之后 但是放在主句之前须有逗号隔开 eg 如果我有足够的钱 我就去环游世界 If引导条件状语从句 定义 if 如果 假如 它引导的句子表示某事发生所需的条件 即 在 条件下 某事才能发生 在句子中充当状语 因此称之为条件状语从句 If引导的条件状语从句表示假如有从句的动作发生 就会有主句动作的发生 IfIhaveenoughmoney Iwilltravelaroundtheworld IwilltravelaroundtheworldifIhaveenoughmoney If条件句 条件句用于陈述语气 表示假设的情况可能发生 其中if是 如果 的意思 主句一般将来时 从句用一般现在时 用法 1 如果主句是一般将来时 从句则用一般现在时 Ifitrains 从句 Iwillstayathome I llgowithyouifyoudon twanttogoalone 从句 2 如果主句含有must may can等情态动词 从句也要用一般现在时 Ifyoudrivetoofast youmayhaveanaccident Youmuststopifthetrafficisred Ifyoufinishthehomework youcangohome 如果你作业做完了就可以回家了 Ifyouwanttoloseweightyoumust shouldeatlessbread 如果你想减肥 你必须少吃面包 3 如果主句是祈使句 从句同样要用一般现在时 Don tgoandplayfootballifyoudon tfinishyourhomework PleasecallmeifhecomesnextSunday 1 如果主句是一般将来时 从句则用一般现在时 Ifitrains 从句 Iwillstayathome I llgowithyouifyoudon twanttogoalone 从句 2 如果主句含有must may can等情态动词 从句也要用一般现在时 Ifyoudrivetoofast youmayhaveanaccident Youmuststopifthetrafficisred 3 如果主句是祈使句 从句同样要用一般现在时 Don tgoandplayfootballifyoudon tfinishyourhomework PleasecallmeifhecomesnextSunday if条件状语从句结构及时态 Revision 练一练 1 如果她早点儿起床 就有时间在家里吃早餐Ifshe alittleearlier she llhavetimetoeatbreakfastathome 2 如果你参加聚会 你将会过得很开心 Ifyou theparty you agreattime 3 如果明天下雨 我们将不去野餐Ifit tomorrow we forapicnic 4 如果你经常听英文歌 你将会喜欢英语Ifyouoften Englishsongs you English getsup joinwillhave rainswon tgo listentowilllike 1 Ifhe not doit I do it 2 Ifyou be lateforschool myteacher be angry are willbe 3Ifshe win theprize we be happy wins willbe 4 IfI not eat somuch I get thinner 5 Ifyou tell them they not believe you don teat willget tell won tbelieve 6I stay athome Ifit rain 7 Ifit not rain I go out 8 we play football Ifitis sun 9 Ifshe become astar herparents not send heraway 10 He watch TV ifhe be free willstay rains doesn train willgo willplay sunny becomes won tsend willwatch is doesn tdo willdo 2 Youmay pass theexamifyou study hard rains willstay pass study 3 Ifyouwanttorecord press theredlight press 1 IfIt rain tomorrow I stay athome Fillintheblanketswiththeproperform 1 I msureifhe go totheparty he have agreattime 2 Iftherain stop tonight wewillgotothecinema 3 I llbuyacomputerifI have enoughmoney 4 You notget nervousifyou do enoughexercise 6 Iwanttoknowifhe come tomorrow ifhe come I give themassagetohim goes willhave stops have won tget do comes willcome willgive IfI mill Iwillseeadoctor Lookandsay IfI mlate Iwillsaysorry IfI mhungry Iwill IfI mtired Iwill Lookandsay eatsomefood havearest Ifitrainstomorrow I willwatchTVathome Ifit tomorrow I llplaybasketball doesn train Iwon t playbasketball Ifyouarefreethisweekend whatwillyoudo IfIamfree sleepwatchTVplaycomputergames practice Ifyouwanttogetgoodmarks dowhat Don tdowhat Ifyouwanttogetgoodmarks Ifyouwanttogetgoodmarks don t studyhardlistentoteacherscarefully dohomeworkbyyourself copyyourhomework talkintheclasscheatintheexams Ifyouhaveenoughpocketmoney whatwillyoubuy IfIhaveenoughpocketmoney I IfyouinviteforeignerstoChina wherewillyougo Iwillgoto ifIinviteforeignerstoChina MountTai Westlake Hainan GameRules Topic1 IfIamhappy A IfIamhappy Iwillgoshopping B IfIgoshopping Icanbuysomeclothes C IfIcanbuysomeclothes Iwillspendmuchmoney D IfIspendmuchmoney E 比一比 一分钟内 根据所给话题 看同学们能接出多少条件状语从句 注意 在句子接龙时 主句与从句变换时 要注意从句时态的变换 从句用一般现在时 If条件句的替代形式 1 祈使句 and or 陈述句 谓语动词通常用将来时态 其中 and表示句意顺承 or表示转折 意为 否则 e g Ifyouworkhard you llpasstheexameasily Workhard andyou llpasstheexameasily Ifyoudon tworkhard you llfallbehindothers Workhard oryou llfallbehindothers verygood 2 用介词with without的替代形式 e g Ifthereisnowater thefishmaydie Fishmaydiewithoutwater Ifyouhelpme I llfinishmytaskontime Withyourhelp I llfinishmytaskontime Activity1Rewritethesentenceswithif Listeninclass oryouwon tunderstandwhattodo Ifyoudon tlisteninclass youwon tunderstandwhattodo 1 Eatbreakfast oryou llgethungryatschool 2 Hurryup We llbelate Ifyoudon teatbreakfast you llgethungryatschool Ifyoudon thurryup we llbelate Activity2 Completethesentences Iwanttogethighscores If workhard dowell youworkhard youwilldowell 1 howcanIremembermyfriends birthdays If keepanoteinyourdiary notforget 2 It slate butIdon twanttogotosleep If notgetenoughsleep feeltiredatschool youkeepanoteinyourdiary youwon tforget youdon tgetenoughsleep you llfeeltiredatschool If在宾语从句中翻译为 是否 If在条件状语从句中翻译为 如果 I llgotoseeyouifIamfreenextweek Iwanttoknowifheisateacher whether 1 if在句中的含义不同 2 if在从句中的位置不同 If引导的宾语从句放在主句之后 而if引导的状语从句可放在主句之前也可放在主句之后 Ifitdoesn train Iwillgoouttomorrow Iwillgoouttomorrowifitdoesn train Idon tknowifthetrainhasarrived If引导的条件状语从句放于句首时多用逗号隔开 而if引导的宾语从句则不能 3 时态要求上有区别 If引导条件状语从句的时态为一般现在时记住 主将从现 1 Iwanttoknowifthereasportsmeetingnextmonth doesn train willbe 2 Ifitdoesn train we llgoout If引导的宾语从句的时态由主句及本身时态决定 1 Canyoutellmeifshecancometothemeeting 2 Shewillnotgothereifitisrainytomorrow 3 Ican tguessifshewillbeangry 4 Ifwehelpeachother wewillgetgoodresults 1IfI notunderstand Iwillaskmyteacherforhelp IfI copy yourhomework Iwillcheatmyself 3Ifshe notget upearly she llmisstheearlybus 4Ifyourmother buy thebookforyou itwillbegoodforyourstudy don tunderstand copy doesn tget buys 5 Ifyou notwork hard you notpass theexam 6 Ifyourbrother break thewindow hewillfeelverysorryforthat 7 Ifthecomputer notwork menditplease don twork won tpass breaks doesn twork 8 Ifshe notbe interestedinmath shewillfinditveryboring 9 Ifyou get highscores yourparentswillbeproudofyou 10 Ifyou be happy wewillbehappy isn t get are Iwanttoknowifhe come tomorrow ifhe come I give themessagetohim comes willcome willgive summary if的用法 2 引导条件状语从句 译为 如果 假如 1 if从句 祈使句 2 if从句 主句 一般将来时 3 if从句 主句 含有情态动词 1 引导宾语从句 译为 是否 表示不确定的概念 Idon tknowifyourfathercancometogether Canyoutellmeifmissyourparents Homework Writing 任选一个话题 写一篇小文章 要求 不少于字数60词 尽可能多地用条件状语从句来表达 Ifyouarehappy Ifyouarehappyandyouknowitclapyourhands Ifyouarehappyandyouknowitclapyourhands Ifyouarehappyandyouknowitneverbeafraidtoshowit Ifyouarehappyandyouknowitclapyourhands Ifyouarehappyandyouknowitstompyourfeet Ifyouarehappyandyouknowitstompyourfeet Ifyouarehappyandyouknowitneverbeafraidtoshowit Ifyouarehappyandyouknowitstompyourfeet Ifyouarehappyandyouknowitwinkyoureye Ifyouarehappyandyouknowitwinkyoureye Ifyouarehappyandyouknowitneverbeafraidtoshowit Ifyouarehappyandyouknowitwinkyoureye 1 Ifyou totheparty you llhaveagreattime A willgoB wentC goD going2 I hertheanswerifshe me A cantell willaskB willtell willaskC wouldtell askD willtell asks C D 3 Whatareyougoingtodotomorrow We llgotothelibrarytomorrowifit A isn trainB rainC won trainD doesn train4 Whatwillyoudoifyou totheoldfolk shomevisit A goB wentC goingD willgo A D 5 IfIeat food I llbeveryfat A toomanyB manytooC toomuchD muchtoo6 I llgivethebooktohimifhe herenextSunday A willcomeB comesC iscomingD came 7 There anEnglishfilminourschooltomorrow A isgoingtohaveB willhaveC isgoingtobeD has8 Couldyoutelluswhere A willthenextOlympicGamesheldB thenextOlympicGameswillbeheldC wouldthenextOlympicGamesbeheldD thenextOlympicGameswouldbeheld C C B B Thanksforlistening Goodbye