初中英语条件状语从句ppt课件

IfIgetuplate,Iwillbelateforschool.IfIdontfinishmyhomework,Iwontgotobed.,由if引导的从句叫条件状语从句，if意为“如果”若主句是一般将来时，从句要用一般现在时。,Ifyoujointheband,youwillbefamous.,=Youwillbefamousifyoujointheband.,Grammar,条件状语从句,1,Ifthetelephonerings,Iwillanswerit.,Ifyougetuplate,youwillbelateforschool.,Lookandsay,2,Ifyoufeelhungry,youshouldeatsomething.,Ifyoufeeltired,youmusthavearest.,3,Ifyouareill,youmustgotoseeadoctor.,Ifyouareridingabikeinthestreet,youmustbeverycareful.,4,Pairwork,Ifyoustayathome,youwillbesorry.,5,Ifyouworkuntilnight,youwillbetired.,6,Ifwebreakthetrafficrules,wewillgetafineandevenbeindanger.,7,Ifitisfinetomorrow,wewillgoonaschooltrip.,wewillclimbmountains.,8,IwillgotoBeijingUniversity.,IfIstudyhard,9,IfIhaveenoughmoney,Iwilltravelaroundtheworld.,10,Ifyouhavearobot,whatwillyoudo?,playgames,cleanmybedroom,dohomeworkforme,Iwillletit,Example:IfIhavearobot,11,Ifsentences,(1)Ifsbdoessth,sbwilldosth=sbwilldosthifsbdoessth,主句（将来时）,从句（一般现在时）,A：actionshavingresultsthatwillprobablyhappen,(2)主句为祈使句或情态动词形式,Ifsbdoessth,pleasedosthIfsbdoessth,sbmay(情态动词)dosth,12,Ifsentences,Ifsbdoessth,sb/sthdoessth=sb/sthdosthifsbdoessth,主句（一般现在时）,从句（一般现在时）,B：actionshavingresultsthatwillcertainlyhappen,相当于when从句,Canifbereplacedbyotherwords?,主语的行为将导致某种必然发生的结果时,13,Exercises:changethefollowingsentencesintoifsentences,3.Getupearly,notbelate4.Takeafishoutofwater,die5.Heatmetal,melt,Ifyougetupearly,youwontbelate.,Ifyouheatmetal,itmelts,returns,call,buy,passes,1.Ifshe_(return)fromParis,please_(call)me.,2.Ifhe_(pass)thetest，wemay_(buy)acar.,Ifyoutakeafishoutofwater,itdies.,14,条件状语丛句只有ifsentenses一种吗？,C：Unless：sbwilldosthunlesssbdoessth,ifsbdoesnotdosth,Eg:Youwillbelateforschoolyounow.Youwillbelateforschoolyounow.,unless,leave,dontleave,if,15,Unlesssentencesexercises,havetoothache,cleanyourteethregularlygetveryhot,puttheair-conditioneronsoon,Unlessyoucleanyourteethregularly,youwillhavetoothache,Ifyoudontcleanyourteethregularly,youwillhavetoothache,Unlessyouputtheair-conditioneronsoon,youwillgetveryhot.,Ifyoudontputtheair-conditioneronsoon,youwillgetveryhot.,16,Morepractice,1.Ifyou_(drop)aglass,it_(break).2.He_(fail)intheexamifhe_(notstudy)hard.3.Unlessyou_(leave)now,you_(be)late.4.We_(have)abarbecueunlessit_(rain).5.Ifyou_(cool)water,it_(turn)intoice.6.Hurryup,oryouwillmissthebus._youdonthurryup,you_catchtheearlybus.7.Studyhard,oryoullmissfallbehind._youstudyhard,you_fallbehind.8.Ifyoudontputonyourscarf,youllcatchcold.Putonyourscarf,_youllcatchcold.9.Theinsurancecompanywouldpayhim2millionyuanifthevasewasstolen.Theinsurancecompany_payhim2millionyuan_thevasewasstolen.10.Idontknowifit_tomorrow.Ifit_,Iwontgoshopping.(rain),drop,breaks,willfail,doesntstudy,leave,willbe,willhave,rains,cool,turns,If,wont,Unless,will,or,wont,unless,willrain,rains,17,Haveatry用括号内所给词的正确形式填空,1.Imsureifhe_(go)totheparty,he_(have)agreattime.2.Iftherain_(stop)tonight,wewillgotothecinema.3.IllbuyacomputerifI_(have)enoughmoney.4.You_(notget)nervousifyou_(do)enoughexercise.5.Ifshe_(be)kindtome,I_(notargue)withher.6.Iwanttoknowifhe_(come)tomorrow,ifhe_(come),I_(give)themassagetohim.7.Ifyou_(pay)moreattentiontothat,he_(notget)injured.,goes,willhave,stops,have,wontget,do,is,wontargue,comes,comes,willgive,pay,wontget,18,8.MrLiwillbemadifwe_(break)therules.9.Ifit_(be)cloudy,they_(notgo)therebyair.10.Pleaseletusknowifhe_(arrive)tomorrow.Pleaseletusknowifhe_(arrive)tomorrow.11.ShallIsay“Hello”whentheforeigner_(come)intotheclassroom?12.Hellgetbettergradesifhe_(study)hard.13.Ifyouworkreallyhard,you_(be)famousandrich.,break,i