主將從現主將從現是指在時間狀語從句和條件狀語從句中，如果主句是一般將來時，從句用一般現在時替代一般將來時。常見的有以下四種情況：一、條件狀語從句的主句是一般將來時，那么從句常常用一般現在時如：WhenIgrowup,I’llbeanurseandlookafterpatients我長大后要當一名護士，照顧病人二、如果主句是祈使句，那么從句通常要用一般現在時如：Don’tlaughatmewhenImakeamistake.我犯錯誤的時候不要笑話我。三、如果主句是含有情態動詞的一般現在時，根據需要從句多用一般現在時如：Youshouldbequietwhenyouareinthereadingroom在閱覽室時應保持安靜四.如果if的條件狀語從句遇到變換間接和直接時,祈使句應用notto....如;Shesaidnottoclosethewindow常見的時間狀語從句的連詞有：assoonas,when,while,as,until等主將從現說的是在含有時間狀語從句和條件狀語從句的主從復合句中，如果主句的時態是一般將來時，那么從句要用一般現在時。例如：Iwilltellhimaboutitwhenhecomes.Ifitisfinetomorrow,wewillgoouting.如果主句的時態是過去將來時，那么從句要用一般過去時。例如：Hesaidthathewouldhaveanothertryifhehadthechance.Iknewhecouldhelpmeifhewasfreethenextday.任務設計任務I.請用正確的形式填空。IfIcome,I________(see)you.Ifitisfine,we______(go)forawalk.Ifitrained,they_________(stay)athome.Youwillspoilitifyou______(notbe)careful.Wewouldbeverymuchpleasedifyou_____(come ).WillyouhelpmeifI_____(need)you.Theywillgetwetifit_____(rain ).WhatapityIhaven’tgotmycar.IfIhad,I_________(take)youtotheairport.Wewouldanswerifwe_____(can ).Ifyoueattoomuch,you______(get)ill.任務II.請根據給的線索將下列句子補充完整。A．eg.IfIwerepoor,Iwoulddomyshoppingincheaperstores.IfIweretrappedinalift,____________________________.IfIhadaflattireonmywayhome,_____________________.IfIheardanoiseoutsidemyapartmentinthemiddleofthenight,________________________________________________.Ifsomeonewasfollowingmedownadarkstreet,_________________.IfIwereshortoffiveyuanforatennisracket,__________________.IfIfoundawalletinthestreetwithalotofcashinit,__________.B.eg.IfIwononemilliondollarsinthelottery,I’dputitinthebankandwatchitgrow.1._____________________________,I’dleavemyhomecity.2.______________________________,Imightnotspeaktoyouagain.3._______________________________,I’dbeverymiserable.4._______________________________,I’dbefrightened.5._______________________________,I’dbeextremelyhappy.任務III.綜合題：請根據上下文完成對話。A:Whatareyoudoingthisevening?B:I’mnotsure.Ifthere_____(notbe)anythinggoodonTV.IthinkI_______(read)adetectimaybeI______(go)tobedearly.A:WhattimewillKatebehome?B:IfI________(know)I________(tell)you.Butunfortunately,shedidn’tsayawordwithmebecausewearguedyesterday.A:Well,ifshe_____(get)homebefore10:00,pleaseaskhertocallme.A:I’msostressedout.B:It’snoneofmybusiness,butifI________(be)you,I_______(take)sometimeoff.A:I’mafraidyourflighthasbeendelayedduetobadweather.B:Ohno!Whenwillittakeoff?A:Wedon’thaveanyideayet.Ifit_________(stop)snowingthisevening,thenyourflight(depart)sometimetonight.A:Whatarethechancesthatwillhappen?B:It’stooearlytotell.I________(let)youknowifI______(hear)anynews.參考答案及分析重點2任務Iwillsee,2.willgo3.wouldstay4.arenot5.came6.need7.rains8.wouldtake9.could10.willget任務II.A.Iwouldcallupthepolice.Iwouldruntotherepairingstation.Iwouldn’tsleepatall. 4.Iwouldrunthefastest.5.Iwouldborrowitfrommyparents.6.Iwouldgiveittothepolice.B.1.IfIdidsomethingwrongIfyousaidsomethingbadaboutmeIfIhadlittlepocketmoneyIfIheardastrangenoise