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      since和for的用法、since和for的區別比較

      作者:佚名 信息來源:本站原創 更新時間:2011-8-31

      初中英語語法大全:比較since和for

           Since 用來說明動作起始時間,for用來說明動作延續時間長度。

           I have lived here for more than twenty years.

           I have lived here since I was born..

           My aunt has worked in a clinic since 1949. 

           Some new oilfields have been opened up since 1976.

           I have known Xiao Li since she was a little girl. 

           My brother has been in the Youth League for two years. 

           I have not heard from my uncle for a long time.

          注意:并非有for 作為時間狀語的句子都用現在完成時。

           I worked here for more than twenty years.

            (我現在已不在這里工作。)

           I have worked here for many years.   

            (現在我仍在這里工作。)

          小竅門: 當現在完成時+一段時間,這一結構中,我們用下面的公式轉化,很容易就能排除非延續動詞在完成時中的誤使。

           1) (對) Tom has studied Russian for three years.

            = Tom began to study Russian three years ago, and is still studying it now.

           2) (錯) Harry has got married for six years.

            = Harry began to get married six years ago, and is still getting married now.

          顯然,第二句不對,它應改為 Harry got married six years ago. 或 Harry has been married for six years.

      since和for的用法、since和for的區別比較

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