【since和for的語(yǔ)法比較】，初中的同學(xué)們，英語(yǔ)學(xué)科可是很重要的哦，趕緊來(lái)看看初中網(wǎng)給大家?guī)��?lái)的英語(yǔ)語(yǔ)法吧。

　　比較since和for

　　Since 用來(lái)說(shuō)明動(dòng)作起始時(shí)間，for用來(lái)說(shuō)明動(dòng)作延續(xù)時(shí)間長(zhǎng)度。例如：

　　I have lived here for more than twenty years.我住在這兒二十多年了。

　　I have lived here since I was born. 我從出生起就住在這兒了。

　　注意：并非有for 作為時(shí)間狀語(yǔ)的句子都用現(xiàn)在完成時(shí)。

　　I worked here for more than twenty years. （我現(xiàn)在已不在這里工作。）

　　I have worked here for many years.（現(xiàn)在我仍在這里工作。）

　　注意：用句型轉(zhuǎn)換的方法，很容易排除非延續(xù)動(dòng)詞在有for/since結(jié)構(gòu)的完成時(shí)中的誤用。

　　1）（對(duì)） Tom has studied Russian for three years. = Tom began to study Russian three years ago, and is still studying it now.

　　2）（錯(cuò)） 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(duì)，它應(yīng)改為 Harry got married six years ago. 或 Harry has been married for six years.

本文來(lái)自：逍遙右腦記憶 http://portlandfoamroofing.com/chuzhong/227257.html

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