if引导的条件状语从句.doc

if引导的条件状语从句含有if引导的条件状语从句的复合句表示假如有从句动作的发生就会有主句动作的发生。★通常情况下如果主句用一般将来时if引导的条件状语从句用一般现在时。如：Ifhemissesthelastbushe'llhavetowalkhome.We'llhaveapartyinthegardeniftheweatherisgood.★如果主句是祈使句或者主句的谓语部分含有情态动词if引导的条件状语从句也常用一般现在时。如：IfanyonecallstellthemI'mverybusy.Ifitrainsyoucanstayathomeandrelax.【链接】本单元我们还学了连词unless可意为“除非；如果不”通常可以和if...not互换使用。如：Hewon'tgotosleepunlessyoutellhimastory.=Hewon'tgotosleepifyoudon'ttellhimastory.【运用】if和unless引导的条件状语从句Ⅰ.单项选择1.We’llstayathome_______itrainstomorrow.A.andB.ifC.butD.so(2019天津)2._______youlookafteritcarefullythiscoatwillkeepyouwarmthroughmanywinters.A.IfB.UnlessC.BeforeD.So(2019甘肃白银)3.—What_______ifthey_______tothemeetinglate?—SorryIdon’tknow.A.willhappen;goB.happened;goC.happens;willgoD.willhappen;willgo(2019湖北随州)4.Momwon’tletDickgoout_______hepromisestobebackby10:00tonight.A.ifB.whenC.sinceD.unless(2019河北)5.Ifit_______sunnytomorrowIwillgoshoppingwithmyfriendinthesupermarket.A.willbeB.beC.isD.was(2019青海西宁)Ⅱ.同义句转化Hewon’tgotosleepunlessyoutellhimastory.__________________________________________Ⅲ.汉译英1.如果她买上票我就给你打电话。___________________________________________2.如果下雪你可以呆在家。___________________________________________3.如果有人打电话告诉他们我很忙。___________________________________________答案Ⅰ.1-5BAADCⅡ.