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If it were not for ……

結(jié)構(gòu)：if it were not for＋名詞／子句，主詞＋would／should 等＋原形動(dòng)詞…

說明：此句型意為“若非（有）…”。此類句構(gòu)專門用于表示與現(xiàn)在事實(shí)相反的。亦可用“but for＋”或“without＋”代替。were 可以提前，省略 if，如例句3.

If it were not for his presence,I would punish you. 要不是他在場(chǎng)，我會(huì)處罰你的。

But for your advice,I should have failed. 要不是你的忠告，我會(huì)失敗的。

But for music（=Were it not for music）,life would be dull. 要不是音樂，人生會(huì)很無聊。

If it were not for oxygen and nitrogen in the air,no man could live on the earth.

大氣中如果沒有氧和氮，人就無法生存于地球了。

Without air,all living things would die. 若非空氣，所有的生物都會(huì)死亡。

Without newspaper,we would get behind the times. 要不是報(bào)紙，我們都趕不上時(shí)代了。

I should be lonely,were it not for the birds and the flowers. 我會(huì)寂寞，若非有鳥也有花。

Were it not for his help,I could not finish the work.若非有他的幫助，我就不能完成這件工作。

Were it not for science,we could not live a comfortable live.

若非科學(xué)，我們無法過著舒適的生活。