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新知识预习讲解(Module3) 重点单词:(查字典或参考资料) space; alone; life; prefer 重点短语: journeytospace;___________thelatestnews;____________havegoneto…;_____________onbusiness;_________bringitback;_________millionsof;__________goaroundtheSun;___________noneof;___________thesolarsystem;___________theMilkyWay;__________inspace;__________inthelastthreeyears;___________keepitsecret;____________fromtimetotime;__________benamedafter;__________getone’snamefrom…____________ 重点句型: Whatareyouupto? Whatdoyouthink? Don’tpanic! That’swhy.. 重点语法:现在完成时(2)(三四模块语法一起预习了) 比较since和for(加黑的字体需要记忆) Since用来说明动作起始时间,for用来说明动作延续时间长度。例如: Ihavelivedhereformorethantwentyyears.我住在这儿二十多年了。 IhavelivedheresinceIwasborn.我从出生起就住在这儿了。 注意:并非有for作为时间状语的句子都用现在完成时。 since的四种用法 1)since+过去一个时间点(如具体的年、月、日期、钟点、1980,lastmonth,halfpastsix)。例如: Ihavebeenheresince1989.1989起,我一直在这儿。 2)since+一段时间+ago。例如: Ihavebeenheresincefivemonthsago.我在这儿,已经有五个月了。 3)since+(一般过去时)从句。例如: Greatchangeshavetakenplacesinceyouleft.你走后,变化可大了。 4)Itis/(hasbeen)+一段时间+since从句。例如: ItistwoyearssinceIbecameamiddleschoolstudent.我考上中学有两年了。 练习: 用since和for填空 1.______twoyears2._______twoyearsago3._______lastmonth4.______1999 5._______yesterday6._______4o’clock7.______4hours8._______anhourago 9._______wewerechildren10._____lunchtime11.______shelefthere 12.HehaslivedinNanjing________theyearbeforelast. 13.I’veknownhim__________wewerechildren. 14.OurteacherhasstudiedJapanese_________threeyears. 15.Shehasbeenawayfromthecity___________abouttenyears. 16.It’sabouttenyears__________sheleftthecity. 难点:短暂性动词转换为延续性动词 arriveat/insw(somewhere缩写).getto/reachsw.come/go/movetosw.→延续性均为beinsw. 但若是如下名词或副词介词in要发生改变,如be/atschool/athome/onthefarm/behere/bethere 1)HegottoBeijingfiveminutesago.He__________________________Beijingfor__________________. 2)ImovedtotheUSAlastyear.I__________________________theUSAsince____________________. 3)Iwenthomeyesterday.I________________________homefor___________________. 4)Theycameherelastweek.They__________________heresince___________________. come/goback,r