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Unit4Amuseumpiece老古董Lesson7a/an表示类别NewWords&Expressionsattic[’ætik]n.阁楼，顶楼Megabyte[’meɡəbait]n.兆字节，百万字节since[sins]adv.自从…以来nothing[’nʌθiŋ]pron.没有东西，没有事情NewWords&Expressionsjet[dʒet]n.喷气式飞机lawnmower[’lɔːnməʊə]n.割草机harddisk[,hɑrd’disk]n.（计算机）键盘Revision!attic阁楼，顶楼Megabyte兆字节，百万字节since自从…以来nothing没有东西，没有事情Revision!jet喷气式飞机lawnmower割草机harddisk（计算机）键盘Howlonghasthecomputerbeenintheattic?电脑在阁楼里放了多久？Ithasbeentheresincetheymovedintothishouse!自从他们搬到这里后就把它放在那里了。QuestionAnswer用于询问持续时间的长度Let’slearntogether!•Robert:What’sthis,Dad?•William:It’sanApple2.It’saveryearlycomputer.Infact,it’sthefirstPersonalComputer,ever.Itcameontothemarketin1977.Wheredidyoufindit?观点副词，表示进一步解释可放句首、句尾或句中，位于助动词之后，主要动词之前。非确定时间状语，意为“曾经”意为“上市”in+季节、月份、年份等Let’slearntogether!•Robert:Mumfounditinaboxintheattic.•William:Oh,thenit’smine!It’sbeenthereforyears.Infact,it’sbeentheresincewemovedintothishouse!较小的地点状语放在较大的地点状语之前。“for+时间段”表示动作持续的时间。它可以与现在完成时连用，表示动作一直持续到现在。但如果动作已经完成，就要与一般过去式连用。“since+时间点”表示动作从过去某个时刻开始。常与现在完成时连用。since放在时间点前面，ago放在时间点后面。Let’slearntogether!•Robert:Doesitstillwork?•William:Idon’tknow...Ah,thereyouare!Canyouheartheharddisk?正常运行，起作用。情态动词can表示“能力”Let’slearntogether!•Robert:Isthatnoisetheharddisk?Itsoundslikealawnmower!•William:Itisnoisy!Ithasn’tbeenoutofitsboxfortwentyyears!“soundlike表示听起来像”。sound是意思接近be的一组动词seem,feel,taste,smell中的一个与动词be的用法相同：动词+like+名词/代词Let’slearntogether!•Robert:Whatcanyoudowithit?•William:Goodquestion!It’sjustamuseumpiece,really.It’sonlygotfiveMegabytes’harddiskspace.•Robert:FiveMegabytes!That’snothing!疑问代词what是canyoudo的宾语。与infact一样，是观点副词。only焦点副词“只有，才”Let’slearntogether!•William:Iknow.ItwasalreadyamuseumpiecewhenIboughtit,andthatwasalongtimeago.MaybeI’mamuseumpiecenow,too!一般过去时表示过去发生并已完成的动作Translation!它于1977年面世。Itcameontothemarketin1977.妈妈在阁楼的一个箱子里找到的。Mumfounditinaboxintheattic.事实上，我们搬到这里后就把它放在那里了。Infact,it’sbeentheresincewemovedintothishouse.它还能有用？Doesitstillwork?Translation!那是硬盘的声音吗？听起来像是割草机的声音。Isthatnoisetheharddisk?Itsoundslikealawnmower!它实际上就是个古董。It’sjustamuseumpiece.我买的时候它就已经是个老古董了，况且那也是很久以前的事了。ItwasalreadyamuseumpiecewhenIboughtit,andthatwasalongtimeago.