adj/adv+enough+n+to do sth
一、 作形容詞 Ⅰ、 作定語(yǔ)時(shí),既可修飾可數(shù)名詞,也可修飾不可數(shù)名詞。 (1) Are there enough seats for ten persons? 有沒(méi)有足夠十人的座位? (2)We have enough food for a week. 我們有足夠維持一周的食物。 有時(shí)也可以將enough放在被修飾名詞的后面,例如: I don’t have wine enough (=enough wine) for five persons. 我的酒不夠5個(gè)人喝。 Ⅱ、 作表語(yǔ) 只有當(dāng)主語(yǔ)是代詞數(shù)詞和“數(shù)詞+名詞”時(shí),enough才可作表語(yǔ)用,如果主語(yǔ)是名詞,enough便不能作表語(yǔ)用了,如: (1) That’s enough.. Thank you. 夠了,謝謝。 (2) Five is enough. 五個(gè)夠了。 (3) Will 12 apples be enough? 十二個(gè)蘋(píng)果夠不夠? 試比較以下句子 The① beer isn’t enough. There isn’t enough beer.啤酒不夠 Was② the time enough? Did you have enough time? 時(shí)間夠嗎? 如果enough之后跟其它修飾語(yǔ)(如不定式或for短語(yǔ)時(shí)),前面的主語(yǔ)不受限制。如: (1)The time is enough to finish it.(=There is enough time to finish it) 有足夠的時(shí)間完成這一工作。 (2)The food is enough for us two.(=There is enough food for us two) 有足夠我們倆吃的食物。 二、 作代詞,充當(dāng)主語(yǔ)、賓語(yǔ) (1)Enough has been said on this subject 關(guān)于這個(gè)問(wèn)題說(shuō)得已經(jīng)夠多的了。 (2)-Do you need some more materials? 你們還需要材料? -No, thanks. Enough have been supplied for us. 不要了,謝謝!我們已經(jīng)夠了。 (3)I have enough to do today. 今天我有足夠多的事要做。 三、 作副詞 Ⅰ、修飾形容詞和副詞,且必須放在它們之后,如: (1)This room is large enough for us to sleep in. 這個(gè)房間足夠大,我們可以睡.(不可說(shuō)enough large) (2 ) He knows the situation well enough. 對(duì)他情況了解得非常清楚。(不可說(shuō)enough well”) Ⅱ、修飾動(dòng)詞。常用于句型Can’t/can never do … enough中表示“無(wú)論怎么做都不為過(guò)”,如: (1)I can never thank you enough. 我對(duì)你感激不盡。 (2 ) He is such a good engineer that we can not praise him enough. 他是個(gè)很好的工程師,我們?cè)俜Q(chēng)贊他也不為過(guò)。 四、 當(dāng)enough和另一形容詞同時(shí)修飾一個(gè)名詞時(shí),有兩種不同的位置。 Ⅰ、enough放在形容詞之后,此時(shí),enough修飾形容詞時(shí),結(jié)構(gòu)為“adj.+ enough+名詞”, 表示“足夠…的…”, 如: (1)a large enough room一間足夠大的房間 (2) a deep enough well 一口足夠深的井 (3) I don’t have big enough nails to mend the cupboard.我沒(méi)有足夠大的釘子修理柜子。 Ⅱ、enough放在形容詞之前,此時(shí),enough修飾名詞,結(jié)構(gòu)為“enough+adj.+名詞 ”,表示“足夠多的…”,如: (1) enough large room 足夠大的房間 (2) enough deep well 足夠深的井 (3)I don’t have enough big nails to mend the cupboard 我沒(méi)有足夠大的釘子修理柜子。 五、 與介詞of構(gòu)成短語(yǔ)enough of,使用時(shí),須遵守如下規(guī)律: 1、enough of+既定詞+名詞(其中既定詞為冠詞,物主代詞或指示代詞) 2、enough of+代詞 (1)Is there enough of the blue material?(=Is there enough blue material?) 有足夠的藍(lán)色料子嗎? (2)I’ve had enough of your complaints.(=I’ve had enough complaints from you) 你的抱怨我已經(jīng)聽(tīng)夠了。 六、 enough之后跟介詞短語(yǔ)”for sb”和不定式 “for sb to do sth”, 如: (1)He was lucky enough to succeed in his first attempt. 他夠幸運(yùn)的了,第一次嘗試就成功了。 (2)He spoke slowly enough for everyone to understand. 他說(shuō)話(huà)慢得每個(gè)人都能聽(tīng)懂。 (3)There isn’t enough ice cream for all the children. 冰淇淋不夠分給所有的小孩。 七、 enough不能與no構(gòu)成否定句,只能借助not以及其他否定詞,如: (1)We have not enough glasses for everyone.(不能說(shuō)成no enough glasses) 我們的杯子不夠分給每個(gè)人。 (2)We had hardly enough food to go around at the picnic.(不能說(shuō)成no enough food) 我們的食物剛夠分給參加野餐的人。 (3)He has barely enough money to live on.(不能說(shuō)成no enough money) 他的錢(qián)僅夠維持生活。 八、 常用于句型“Would you be kind/good enough to do sth?” 表示禮貌的請(qǐng)求,如: (1)Would you be kind enough to let us know the date of your arrival?
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