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子,但是還沒(méi)有賣掉舊的,所以現(xiàn)在我又兩所房子。此時(shí)經(jīng)常用延續(xù)性動(dòng)詞。雖然牛頓是個(gè)偉大的人物,但他的許多見(jiàn)解直到今天還在受到挑戰(zhàn),并且被現(xiàn)代科學(xué)家的工作所修正。11. 過(guò)去完成時(shí)(had done)①表示在過(guò)去的某個(gè)時(shí)間或動(dòng)作以前已經(jīng)完成的動(dòng)作或已經(jīng)存在的狀態(tài)。hadn39。from him for six months.②表示從過(guò)去的過(guò)去開(kāi)始,持續(xù)到過(guò)去的動(dòng)作或情況,并且有可能會(huì)繼續(xù)延續(xù)下去。By the time I left the school, he had taught the class for 3 years.到我畢業(yè)時(shí),他已經(jīng)教那個(gè)班三年了.:had been doing表示從過(guò)去的過(guò)去開(kāi)始,持續(xù)到過(guò)去的動(dòng)作或情況,期間一直有規(guī)律的在進(jìn)行、不曾間斷,并且有可能會(huì)繼續(xù)延續(xù)下去。例:The old clock had been being taken apart of and fixed up again for several:(would have done)表示到過(guò)去將來(lái)某一時(shí)間已經(jīng)完成的動(dòng)作,并且對(duì)過(guò)去將來(lái)那一時(shí)間點(diǎn)產(chǎn)生影響。但是我錯(cuò)了。例:He told me that by the end of the year he would have lived there for thirty years.他告訴我,到那年年底為止他將已經(jīng)在那里住了三十年了。例:They said that by the end of the following month, the project would have been being worked for 3 years.他們說(shuō)到第二個(gè)月底為止,這項(xiàng)工程就已經(jīng)不停地進(jìn)行了3年了。例:Pick me up at 8 o39。例:The conference will have lasted a full week by the time it ends.:(will have been doing)表示一個(gè)動(dòng)作延續(xù)到將來(lái)某個(gè)時(shí)間,期間一直有規(guī)律在進(jìn)行、不曾間斷,并且有可能繼續(xù)延續(xù)下去。例:By the end of next month, the project will have been being worked for 3 years.到下個(gè)月底為止,這項(xiàng)工程就已經(jīng)不停地進(jìn)行