enough既可作形容词，也可作副词，还可作代词，用法如下：
用口诀巧记enough的用法→修饰名词可前后，修饰形副要放后；
后面还可加 to do，用作名词表足够。
例如：
1.My father didn't bring enough money,
so We only had one bowl of rice and some fish.
我爸爸没有带足够多的钱，因此我们只吃了一些米饭和一些鱼。
2.My little brother is 7 years old. He's old enough to go to school.
我弟弟7岁了，他到上学的年龄了。
3.enough books/books enough.
足够的书。
4. careful/hard enough.
足够细心/足够努力。
5.Enough has been said about this word.
关于这个词说得已经够多了。
Exercise:
判断句子正误，对的写“R”；错的写“W”。
1.He has enough milk. ( )
2.He has milk enough. ( )
3.He is old enough.
4.He reads quickly enough.
5.She is enough old.
6.He reads enough quickly.
7.There are enough long ropes for them to use.
8.The ropes are long enough.
Key:
1.R 2.R 3.R 4.R 5.W 6.W 7.R 8.R
