Question

7．只要你提前三個月預(yù)訂，飛往悉尼的票價就會減半．
The air ticket to Sydney will be half priceas long as you book it three months earlier．

Answer 1

分析 as long as you book．

解答 答案：as long as you book．這里是說只要，用as long as引導(dǎo)的條件狀語從句，遵循主將從現(xiàn)的規(guī)則，從句主語是you第二人稱，故動詞用原形book預(yù)定，故答案是as long as you book．

點評 as long as 有兩個意思，一是用于本義，意為"與…一樣長（久）"，在否定句中，也可說成 （not） so long as；二是用于引申義，表示"只要"，用于此義時也可說成 so long as（不管是肯定句、否定句還是疑問句）．如：This river is as long as that one．這條河與那條河一條長．He lived abroad as long as five years．他住在國外長達(dá)五年之久．He didn't stay there as[so]long as she．他在那兒住得不如她久．As long as it doesn't rain we can go．只要不下雨，我們就可以去