高考英語(yǔ)詞匯: had better的用法歸納

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高考英語(yǔ)詞匯:had better的用法歸納
    1. had better的基本用法特點(diǎn)
    其意為“”、“應(yīng)該”,后接動(dòng)詞原形,與情態(tài)動(dòng)詞should用法相似,其中的had通??s略為 ‘d。如:
    You’d better get some sleep.你去睡一會(huì)兒。
    We had better go before it rains. 我們?cè)谙掠昵熬腿ァ?BR>    2. had better如何構(gòu)成否定式和疑問(wèn)式
    構(gòu)成否定式時(shí),通常將not置于had better之后(而不是had之后);而構(gòu)成疑問(wèn)式時(shí),則通常將had(而不是had better)置于主語(yǔ)之前。如:
    I’d better not disturb him.我別去打擾他。
    What had we better do? 我們?cè)趺崔k?
    【注】在否定疑問(wèn)句或反意疑問(wèn)句中可將not與had連用。如:
    Hadn’t we better go now? 我們是不是現(xiàn)在就去呢?
    3. had better后接進(jìn)行式和完成式動(dòng)詞
    有時(shí)后接動(dòng)詞的進(jìn)行式,表示馬上做某事;也可接完成式動(dòng)詞,表示做完某事或本該做某事而未做某事。如:
    I think I’d better be going.我想我還是馬上走。
    You’d better be getting your clothes ready. 你馬上把衣服準(zhǔn)備好。
    You had better have done that. 你把那事做完。
    You had better have stayed here. 你本來(lái)應(yīng)該呆在這兒的。
    4. 有關(guān)had better的幾點(diǎn)用法說(shuō)明
    (1) had better 用于提出建議或請(qǐng)求時(shí),并不是一個(gè)很客氣委婉的表達(dá),它暗示對(duì)方有義務(wù)去做某事,因此通常用于長(zhǎng)輩對(duì)晚輩或上級(jí)對(duì)下級(jí)等,而不宜反過(guò)來(lái)用。
    (2) had best與had better 用法和含義均差不多,但不如had better普通。如:
    You had best get home before midnight.你在午夜之前回到家里。
    We had best be going.我們現(xiàn)在就走。
    (3) 有時(shí)可省略其中的had。如:
    You better stop arguing.你們不要爭(zhēng)論了。
    Better not wait for him. 不要等他了。
    Better say yes, if they ask you. 如果他們問(wèn)你,你說(shuō)“是”。
    (4) 有時(shí)為了強(qiáng)調(diào),可將better置于had之前。如:
    "I promise I’ll pay you back." "You better had." “我保證還給你。”“你還給我?!?BR>