「if条件状语从句（学校课件）」.ppt

Revision AdverbialClauseofConditionif引导的条件状语从句 复习课 1 高级课件 Ifyouarehappy whatwillyoudo IfIamhappy Iwillsmile 2 高级课件 Ifyoubecomesad whatwillyoudo IfIbecomesad Iwillcry 3 高级课件 Sheisdoingherhomework Ifyouarehard working youwillgetgoodgrades Shegetsgoodgrades 4 高级课件 Ifyouplaycomputergamesonweekdays you llbeverytiredinclass yourparentswillbesad youwon tgetgoodgrades youreyeswillbepoor 5 高级课件 Shewillbelate Ifshe toschool she late Sheisgoingtowalktoschool walks will be Lead in 6 高级课件 1 条件状语从句通常由if或unless ifnot 引导 从句中常用一般时代替将来时 即if或unless后的句子谓语用一般现在时 但是 主句则通常用将来时 情态动词或祈使句 时态 主将从现主句一般将来时 从句一般现在时 7 高级课件 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 8 高级课件 If引导条状语从句时 从句中用一般现在时代替一般将来时 1 Ifhe go tothemovies hewon tfinishhiswork goes 2 IfI become adoctor Icanhelpothers become 3 Ifwe have time wewillgototheparktomorrow have 4 如果你去 我也去 Ifyougo Iwillgo 5 如果明天下雨 请带雨衣 raincoat Pleasetakearaincoatifitrains excellent 9 高级课件 Ifyouarefreethisweekend whatwillyoudo IfIamfree sleepwatchTVplaycomputergames practice 10 高级课件 Ifyouwanttogetgoodmarks dowhat Don tdowhat Ifyouwanttogetgoodmarks Ifyouwanttogetgoodmarks don t studyhardlistentoteacherscarefully dohomeworkbyyourself copyyourhomework talkintheclasscheatintheexams 11 高级课件 Ifyouhaveenoughpocketmoney whatwillyoubuy IfIhaveenoughpocketmoney I 12 高级课件 IfyouinviteforeignerstoChina wherewillyougo Iwillgoto ifIinviteforeignerstoChina MountTai Westlake Hainan 13 高级课件 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 14 高级课件 2 用介词with without的替代形式 e g Ifthereisnowater thefishmaydie Fishmaydiewithoutwater Ifyouhelpme I llfinishmytaskontime Withyourhelp I llfinishmytaskontime 15 高级课件 Activity1Rewritethesentenceswithif Listeninclass oryouwon tunderstandwhattodo Ifyoudon tlisteninclass youwon tunderstandwhattodo 1 Eatbreakfast oryou llgethungryatschool 2 Hurryup We llbelate Ifyoudon teatbreakfast you llgethungryatschool Ifyoudon thurryup we llbelate 16 高级课件 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 17 高级课件 if引导的条件状语从句和if引导的宾语从句的区分 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 18 高级课件 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 19 高级课件 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 20 高级课件 找出下列句子中哪些是if条件状语从句 哪些是if宾语从句 1 Canyoutellmeifshecancometothemeeting 2 Shewillnotgothereifitisrainytomorrow 3 Ican tguessifshewillbeangry 4 Ifwehelpeachother wewillgetgoodresults 21 高级课件 If引导的条件状语从句的练习 1IfI notunderstand Iwillaskmyteacherforhelp IfI copy yourhomework Iwillcheatmyself 3Ifshe notget upearly she llmisstheearlybus 4Ifyourmother buy thebookforyou itwillbegoodforyourstudy don tunderstand copy doesn tget buys 22 高级课件 5 Ifyou notwork hard you notpass theexam 6 Ifyourbrother break thewindow hewillfeelverysorryforthat 7 Ifthecomputer notwork menditplease don twork won tpass breaks doesn twork 23 高级课件 8 Ifshe notbe interestedinmath shewillfinditveryboring 9 Ifyou get highscores yourparentswillbeproudofyou 10 Ifyou be happy wewillbehappy isn t get are 24 高级课件 Iwanttoknowifhe come tomorrow ifhe come I give themessagetohim comes willcome willgive 25 高级课件 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 26 高级课件 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 27 高级课件 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 28 高级课件 If引导的非真实性条件状语从句 虚拟语气 A 与现实事实相反主 过去将来时从 过去时Iftheywerehere theywouldhelpyou B 与过去事实相反主 should would have v p p 从 had v p p E Ifhehadworkedharder hewouldhavesucceeded 29 高级课件 BYTHETIME bythetime 一般过去时 从句过去完成时bythetime 一般现在时 从句现在完成时 30 高级课件 nerdn 令人厌烦的人 愚蠢的人 落伍的人 电脑迷 shrugv 耸肩 表示不知道或不在乎 shrugsthoff aside不把 当回事 对 满不在乎 对 不予理睬dirtn 泥土 污垢 污泥 下流想法 恶意中伤的话Hisclotheswerecoveredindirt 他的衣服沾满了污垢 31 高级课件 handn 手 协助 帮助 工具等的 把 柄 掌管vt 传递 交给 搀扶 支持Severalofhiscolleagues