1.含情态动词should的被动语态结构式:should+be+及物动词的过去分词。(1)肯定句结构为:主语+shouldbe+及物动词的过去分词+(by+宾语).eg:你应该自己完成作业。Yourhomeworkshouldbefinishedbyyourself.(2)否定结构为:主语+should+not+be+及物动词的过去分词+(by+宾语).eg:不应该允许青少年晚上外出。Teenagersshouldnotbeallowedtogooutatnight.语法焦点语法焦点含情态动词should的被动语态含情态动词should的被动语态1.含情态动词should的被动语态结构式:(3)一般疑问句结构为:Should+主语+be+及物动词的过去分词+(by+宾语)?回答:Yes,主语+should./No,主语+shouldn’t.eg:这些小树应该每天浇水吗?Shouldtheseyoungtreesbewateredeveryday?Yes,theyshould./No,theyshouldn’t.对,应该。/不,不应该。(4)特殊疑问句结构为:疑问词+一般疑问句?eg:应该允许学生们做什么?Whatshouldstudentsbeallowedtodo?语法焦点语法焦点含情态动词should的被动语态含情态动词should的被动语态1.Nobodycananswerthequestion.(同义句改写)→Thequestion____answeredbyanybody.2.Weshouldcleanourteethtwiceaday.(改为被动语态)→Ourteethshould_____twiceaday.3.Theyshouldbeallowedtotakepartinafter-schoolactivities.(变一般疑问句并作否定回答)→____they_______takepartinafterschoolactivities?No,they_____.一、按要求进行句型转换,每空一词。can’tbe强化训练强化训练becleanedShouldbeallowedtoshouldn’t4.Youcan’tlendthemagazinetoothers.(改为被动语态)→Thebook______toothers.5.Thelightsshouldbeturnedoffbeforeyouleavetheclassroom.(改为主动语态)→You______offthelightsbeforeyouleavetheclassroom.一、按要求进行句型转换,每空一词。can’tbelent强化训练强化训练shouldturn写作指导写作指导本单元写作针对某人、某事或某活动制定规则或提建议。写此类短文时,最重要的是掌握情态动词的用法以及相关句型。再根据所给的提示、要求等,明确中心内容,就能写出一篇好文章来。常用句型归纳如下:1.Wemust/can…;2.Wemustn’t/can’t…;3.Weshould/shouldn’t…;4.Weshould/shouldn’tbeallowedto…;5.You’dbetter…;6.Whynot….写作示例写作示例假设你叫大明,你的一个美国笔友托尼将到中国来并在你们班学习。请写信告诉他你们班的班规,80词左右。经典示范经典示范DearTony,Iamgladtoknowthatyouwillcometoourclass.Youaskedmeabouttheruleshere.Letmetellyousome.Westartclassat8o’clockinthemorning.Youshouldbeintheclassroombeforethat.Whentheclassbegins,youshouldsitsilentlyonyourseat.Youmustn’tspeaktoanyoneelsewhentheteacherisgivingthelesson.Ifyouwanttoanswertheteacher’squestion,putyourhandsupfirst.Whentheteachercallsyourname,youcanstandupandanswerit.Iftheteachergivesyousomehomeworktodo,yououghttofinishitontime.Ihopeyouwilldowellinallthelessonshere.Yours,Daming