(1) A lot of people have taken part in the activity. 很多人参加了这次活动。
(2) Lots of water is lost. 大量的水被流失了。
I. 主语是： kind of, type of, pair of, amount of, quantity of + 名词时，谓语动词的形式须依照kind, type, amount, pair, quantity的数而确定。如：
(1) This pair of trousers was made by Master Li. 这条裤子是李师傅做的。
(2) A large quantity of water in the sea has been polluted. 这个海里大量的水被污染了。
(3) Large quantities of rice have been destroyed in the flood. 大量的庄稼在洪水中被毁坏了。
J. 主语是：the number of + 名词的复数时，谓语动词用第三人称单数形式。如：
The number of students in our class is seventy-eight. 我们班的学生数是七十八。
主语是：a number of + 名词复数时，谓语动词用第三人称复数形式。如：
A number of students of our school come from the countryside. 我们学校很多学生来自农村。
K. 主语是：the population时，谓语动词用第三人称单数形式。如：
(1) What is the population of your town? 你们镇的人口多少？(from www.hxen.com)
(2) The population of America is a little over two hundred million. 美国人口数大约是两亿多一点。
主语是：分数 + population时，谓语动词常用第三人称复数形式。如：
About eighty percent of the population in our country are farmers. 我们国家大约有百分之八十的人口是农民。
L. 主语是：means, works, sheep, fish, Japanese, Chinese等名词时，谓语动词的形式须依照它们在句中的意义来确定。如：
(1) Every means has been tried but we can’t save him. 每一种方法我们都是用过了，但是我们还是救不了他。
(2) All the means have been tried but we can’t save him. 所有的方法我们都是用过了，但是我们还是救不了他。