enough to句型的用法
該結(jié)構(gòu)的基本形式為“形容詞或副詞+enough to+動(dòng)詞原形”，其意為“足夠地…可以…”：
He is old enough to take care of himself. 他大了，能照顧自己了。
Will you be kind enough to shut the door? 可否勞駕把門關(guān)上?
She is old enough to travel by herself. 她年紀(jì)夠大，可以獨(dú)自旅行了。
Is the river deep enough to swim in? 在這條河里游泳水夠深嗎?
【注】若enough前出現(xiàn)否定詞，則不僅否定了enough，而且也否定其后的不定式：
He was not strong enough to do the work. 他不夠強(qiáng)壯，不能做這工作。
He is not strong enough to lift the box. 他力氣不夠大提不起這個(gè)箱子。
另外，該句型有時(shí)可與so [such]…that結(jié)構(gòu)轉(zhuǎn)換：
He is rich enough to buy a plane. 他很有錢，可以買一架飛機(jī)。
→He is so rich that he can buy a plane. 他很有錢，可以買一架飛機(jī)。
有時(shí)該句型也可與too…to句型轉(zhuǎn)換：
He is too young to go to school. 他太小，還不能上學(xué)。
→He is not old enough to go to school. 他還不夠大，還不能上學(xué)。
該結(jié)構(gòu)的基本形式為“形容詞或副詞+enough to+動(dòng)詞原形”，其意為“足夠地…可以…”：
He is old enough to take care of himself. 他大了，能照顧自己了。
Will you be kind enough to shut the door? 可否勞駕把門關(guān)上?
She is old enough to travel by herself. 她年紀(jì)夠大，可以獨(dú)自旅行了。
Is the river deep enough to swim in? 在這條河里游泳水夠深嗎?
【注】若enough前出現(xiàn)否定詞，則不僅否定了enough，而且也否定其后的不定式：
He was not strong enough to do the work. 他不夠強(qiáng)壯，不能做這工作。
He is not strong enough to lift the box. 他力氣不夠大提不起這個(gè)箱子。
另外，該句型有時(shí)可與so [such]…that結(jié)構(gòu)轉(zhuǎn)換：
He is rich enough to buy a plane. 他很有錢，可以買一架飛機(jī)。
→He is so rich that he can buy a plane. 他很有錢，可以買一架飛機(jī)。
有時(shí)該句型也可與too…to句型轉(zhuǎn)換：
He is too young to go to school. 他太小，還不能上學(xué)。
→He is not old enough to go to school. 他還不夠大，還不能上學(xué)。