Grammar5高三英语课件

常用连词1时间状语从句Abeforeafteraswhenwhiletill/until(ever)sincewheneveronceassoonasBtheminutethemomenttheinstantthefirsttimethesecondtimethelastnexttimelasttimeeverytimebythetime(that)directlyimmediatelyinstantlyCnosooner…thanhardly…whenbarely…whenscarcely…when时态/倒装/搭配过去完成时一般过去时【注意】1while&whenAwhile持续性动词；主句动作发生在while时间段内when持续/瞬间性动词；主，itmakesafunnynoise【注意】2till/until&not…untilA1Theytalkedtilldawn2Theydidn’ttalktilldawnB时态1Wewillwaitforhimuntilhecomes2Don’tgetoffthebusuntilithasstopped时间状语从句用一般现在时表将来动作现在完成时表将来完成动作（终点;持续性动词）（起点；瞬间性动词）【注意】3since（主，从句动作同时/先后发生Bwhile对比；although1Whiletheircountryhasplentyofoil，ourshasnone2WhileIacceptthatheisnotperfect，Idoactuallylikethepersonwhenat/duringthattime;ifWhen/IfIreversethecar，从句时态）havedone+since(did)havedone+since(ha，