第1个回答 2011-09-03
这5个词组都是“大量的”的意思。
1. plenty of 既可以修饰可数名词,又可以修饰不可数名词,如: plenty of rain;plenty of people
2. a number of 只能修饰可数名词,而且常常是那些可以“数一数”的东西,如: a number of books, a number of people
3. a mass of 成堆的东西时用,如:a mass of stones 一大堆石头
4. a great many 用语与many 完全一样,修饰可数名词, 如:many people.
5. a lot of 既可以修饰可数名词,又可以修饰不可数名词,如: a lot of money, a lot of people.
第2个回答 2011-09-03
plenty of ,a lot of ,lots of ,a quantity of ,quantities of,a supply of ,supplies of, a mass of, masses of可与可数名词和不可数名词连用
a number of ,a variety of , varieties of, a good/great many 后接可数名词复数a good/great many of 后面的名词复数前要有the/these/those/one's
a great amount of, amounts of ,a great/good deal of 后接不可数名词 a sum of 修饰货币
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