2016届高考英语二轮秒杀高中英语重点系列：重点23 现在完成时、过去完成时和将来完成时
<p> 现在完成时表示到现在为止，已经完成的动作或存在的状态。在时间状语从句中用现在完成时表示将来要完成的动作</p><p> 过去完成时表示到过去某一时间或动作为止，已经完成的动作或存在的状态。在表示过去没有实现的愿望、想法等意思时，要用过去完成时。</p><p> 将来完成时则表示到将来某一时间或动作为止，将要完成的动作或存在的状态。</p><p> 例如：</p><p> <span word="We">We</span> <span word="have">have</span> <span word="learned">learned</span> 2,500 <span word="English">English</span> <span word="words">words</span> <span word="by">by</span> <span word="now">now</span>.</p><p> <span word="I">I</span>’<span word="ll">ll</span> <span word="go">go</span> <span word="on">on</span> <span word="a">a</span> <span word="trip">trip</span> <span word="to">to</span> <span word="Si">Si</span>’<span word="an">an</span> <span word="when">when</span> <span word="I">I</span> <span word="have">have</span> <span word="finished">finished</span> <span word="writing">writing</span> <span word="this">this</span> <span word="book">book</span>.</p><p> <span word="We">We</span> <span word="had">had</span> <span word="learned">learned</span> 2,000 <span word="English">English</span> <span word="words">words</span> <span word="by">by</span> <span word="the">the</span> <span word="end">end</span> <span word="of">of</span> <span word="last">last</span> <span word="term">term</span>.</p><p> <span word="I">I</span> <span word="had">had</span> <span word="hoped">hoped</span> <span word="to">to</span> <span word="visited">visited</span> <span word="you">you</span> <span word="last">last</span> <span word="weekend">weekend</span> ,<span word="but">but</span> <span word="I">I</span> <span word="was">was</span> <span word="too">too</span> <span word="busy">busy</span> <span word="then">then</span>.</p><p> <span word="We">We</span> <span word="will">will</span> <span word="have">have</span> <span word="learned">learned</span> 35,000 <span word="English">English</span> <span word="words">words</span> <span word="by">by</span> <span word="the">the</span> <span word="end">end</span> <span word="of">of</span> <span word="next">next</span> <span word="month">month</span>.</p><p> 练习：</p>
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