20xx英語語法16種時(shí)態(tài)總結(jié)-資料下載頁
2024-11-20 03:55本頁面
【正文】 ”。
Until then, his family hadn’t heard from him for six months. 到那時(shí)為止，他家里已經(jīng)有六個(gè)月沒得到他的消息了。
②表示從過去的過去開始，持續(xù)到過去的動作或情況，并且有可能會繼續(xù)延續(xù)下去。此時(shí)經(jīng)常用延續(xù)性動詞。
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.
?。篽ad been doing
表示從過去的過去開始，持續(xù)到過去的動作或情況，期間一直有規(guī)律的在進(jìn)行、不曾間斷，并且有可能會繼續(xù)延續(xù)下去。此時(shí)經(jīng)常用延續(xù)性動詞。
例：The old clock had been being taken apart of and fixed up again for several times by my 10year old son before I came back home.
我回到家之前，我10歲大的兒子已經(jīng)把這個(gè)舊鐘表拆卸并重新組裝了好幾回了。
表示動作從過去某一時(shí)間開始一直延續(xù)到過去將來某一時(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：They said that by the end of the following month, the project would have been being worked for 3 years.
他們說到第二個(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：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)行了3年了。
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