A If she comes
if條件狀語(yǔ)從句
1．if從句用一般現(xiàn)在時(shí),主句用一般將來(lái)時(shí) If he runs he’ll get there in time.如果他用跑的,他就會(huì)及時(shí)趕到那兒.The cat will scratch you if you pull her tail.如果你拉貓的尾巴,它就會(huì)抓你.2．if從句用一般現(xiàn)在時(shí),主句用may/might/canIf the fog gets thicker the plane may/might be diverted.如果霧在大一些,飛機(jī)可能就會(huì)改在別的機(jī)場(chǎng)降落.If it stops snowing we can go out.如果雪停了,我們就可以出去.3．if從句用一般現(xiàn)在時(shí),主句用must/shouldIf you want to lose weight you must/should eat less bread.如果你想減肥,你必須少吃面包.4．if從句用一般現(xiàn)在時(shí),主句用一般現(xiàn)在時(shí)If you heat ice it turns to water.(也可用will turn)如果把冰加熱,它就會(huì)化成水.5．if從句用現(xiàn)在進(jìn)行時(shí),主句用一般將來(lái)時(shí)If you are looking for Peter you’ll find him upstairs.如果你是在找彼得,上樓就會(huì)找到他.6．if從句用現(xiàn)在完成時(shí),主句用一般將來(lái)時(shí)If you have finished dinner I’ll ask the waiter for the bill.如果你吃完了,我就叫服務(wù)生來(lái)算賬