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ID:49971998
大小:2.02 MB
页数:8页
时间:2020-03-05
《人教版高中英语选修八课件:unit 4 第四学时 grammar.ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、英语·选修8(人教版)第四学时 Grammar语法精讲过去分词作状语一、过去分词作状语语法精讲过去分词作状语可表示时间、结果、原因、条件、让步、伴随等,表被动意义,相当于一个状语从句。1.Offered_help,oneoftensaid“thankyou”.(=Whenonewasofferedhelp,oneoftensaid“thankyou”.)过去分词短语作时间状语。2.Given_more_time,hewouldfinishthejob.(=Ifmoretimewasgiventohim,hewouldfinishthejob.)3.Se
2、en_from_the_hill,thetownlooksbeautiful.(=Ifthetownisseenfromthehill,itlooksbeautiful.)语法精讲第2、3句中的过去分词短语相当于条件状语。4.Hecamebackatmidnight,tired_and_badly_wounded.(=Hecamebackatmidnightandhewastiredandbadlywounded.)过去分词短语相当于伴随状语。二、连词+分词(短语)语法精讲为了使分词短语与主句关系更清楚,可在分词前加连词,常用的连词有:once,whe
3、n,while,if,though,although,after,before,as等。1.Once_tasted,thedishishardtoforget.(=Oncethedishistasted,itishardtoforget.)2.If_heated,icecanbechangedintowater.(=Ificeisheated,itcanbechangedintowater.)3.Though_told_many_times,hedidn'tunderstandit.(=Thoughhehadbeentoldmanytimes,hedi
4、dn'tunderstandit.)
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