2016年6月英語四級語法精講：條件狀語從句

2016年6月份的四六級備考正在緊鑼密鼓的進(jìn)行中，下面是2016年6月英語四級語法精講：條件狀語從句，查看更多關(guān)于四級英語語法的內(nèi)容，請關(guān)注新東方在線。

條件狀語從句：

(1)連接詞：if, once, as long as, on condition that

① 如果引導(dǎo)的條件可以實(shí)現(xiàn)，主將從現(xiàn);

② 如果引導(dǎo)的條件和事實(shí)相反，則用虛擬語氣;

eg：If winter comes can spring be far behind.

As long as it doesn't rain, we can play.

You can go out on condition that you wear an overcoat.

Modern cars are far tougher to steal, as their engine management computer won't allow them to start unless they receive a unique ID code beamed out by the ignition (點(diǎn)火) key.

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