牛津英语7B unit6 Grammar

《牛津英语7B unit6 Grammar》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、Unit6GrammarHowtolookafterpets?Imperativesentence(祈使句)Verb+…(positive~)Donot+verb…(negative~)Giveinstructions祈使句，表达说话人对对方的叮嘱、劝告、希望、禁止、请求或命令等。祈使句一般以动词原形开头，无时态和数的变化，句末用句号或感叹号，用降调。CanCouldCan’tCouldn’tabilityFormShouldShouldn’tMustMustn’tBest/rightthingtod0(应该/不应该)Necessary/impo

2、rtanttodoornottodo(必须/禁止)DifferencebetweenYoubringyourpetstoschool.Youcomeearliernexttime.Youkeepquietinthelibrary.Youspendtoomuchtimeontheinternet.Must比should语气更强烈。Mustn’t表示“禁止”或“不允许做”的事情，shouldn’t表示“不应该”。mustn’tshouldmustshouldn’tDiscussionAmilitaryofficerbeatanairlinestewa

3、rdessontheplane,supposeyouwereonthescene,whatwouldyousaytobothofthem?ToM:Stop!Youmustlistentoherontheplane.Youmustn’tabuseyourpower!ToS:Pleasecallthepolice!Don’tbeafraid.Youshouldfightforyourself!SummaryGiveinstructions1.(please)+verbDonot+verb2.should/must+verbshouldn’t/must

4、n’t+verbImperativesentenceModalverbsHomeworkFinishtherestworkonthebook.