enough/adequate/plenty/of/lots/of/a/lot/of/quantities/of/several/many/many/a/a/large/number/of/much/a/great/deal/of/a/large/amount/of
记忆：
1. enough [ i5nQf ] adj. 足够的 n. 充足 adv. 足够地, 充分地 int. 够了! I’ve had enough of it!我受够了！
2. adequate [ 5Adikwit] ad-equa-te ad, 广告；equa, 平等；adequate, 与广告相等的，说明质量和数量都足够了（广告一般都夸大其词）。 adj. 适当的, 足够的 We have adequate hands to do the job.我们有足够的人手来做这项工作。
2. plenty [ 5plenti ] of adj. 许多 There is plenty of rain at this time of year.每年这个时候雨水都很丰富。
3. quantities [ `kwCntItIv ] of 大量的 There live quantities of squirrels in the wood near the cottage.村舍附近的树林里有大量的松鼠。
4. a lot of / lots of 大量的 We have a lot of work to do.我们有大量的工作要做。
5. several [ 5sevErEl] 几个（修饰可数名词） I have several books about Hawking, the disabled but one of the greatest scientists.我有几本关于霍金的书，他虽身患残疾但，却是世上最伟大的科学家之一。
6. many [ 5meni ] 许多 （修饰可数名词复数）Many students are a little tired of doing one test after another. 考试一个接一个，许多学生都厌倦了。
7. many a 许多 （修饰可数名词单数） Many a student is a little tired of doing one test after another. 考试一个接一个，许多学生都厌倦了。
8. a good many 许多 （修饰可数名词）A good many students are a little tired of doing one test after another. 考试一个接一个，许多学生都厌倦了。
7. a large number of 许多 （修饰可数名词） A large number of students volunteer to work for the Olympics. 许多学生自愿为奥林匹克服务。
8. much [ mQtF] 多（修饰不可数名词） There isn’t much milk in the bottle now. 瓶子里面的奶不多了。
9. a great deal of 大量的（修饰不可数名词） Mr. Wang made a great deal of money by dealing in real estate.王先生做地房地产赚了不少的钱。
10. a large amount of 大量的（修饰不可数名词）When can we have a large amount of time to enjoy ourselves completely?什么时候我们才有大量的时间彻底放松一下？
11. a large sum of 一大笔（钱） The project calls for a large sum of money.这工程需要一大笔钱。
另类阅读：
I don’t have enough time to drink plenty of water. A large number of people have no habit of drinking water every day. But experts say that it’s necessary to have a great amount of water daily.

轻松一刻
TEACHER: George, go to the map and find North America.
GEORGE: Here it is!
TEACHER: Correct. Now, class, who discovered America?
CLASS: George!