作业帮Between 1950 and 1990,the world population doubled to 5.3 ________.Nearly eighty ________ of these people live in developing,or poorer nations.A.billion; percent B.billion; percentage C.billions; percents D.billions; percent 是A还是B,有什么区
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Between 1950 and 1990,the world population doubled to 5.3 ________.Nearly eighty ________ of these people live in developing,or poorer nations.A.billion; percent B.billion; percentage C.billions; percents D.billions; percent 是A还是B,有什么区
Between 1950 and 1990,the world population doubled to 5.3 ________.Nearly eighty ________ of these people live in developing,or poorer nations.
A.billion; percent B.billion; percentage
C.billions; percents D.billions; percent
是A还是B,有什么区别
Between 1950 and 1990,the world population doubled to 5.3 ________.Nearly eighty ________ of these people live in developing,or poorer nations.A.billion; percent B.billion; percentage C.billions; percents D.billions; percent 是A还是B,有什么区
A
percent:n.百分比; 百分中之一分 adj.百分之…的 adv.对每一百,在一百当中
percentage:n.百分数,百分比,百分率
前者用法是:数词+percent+of+sth;这时后面谓语的单复数以percent后面跟的主语为主,例如:
1.2 percent of the apples(这里是复数的可数名词) are(所以用复数) eaten.
2.2 percent of the apple(这里是单数,指的是一个苹果的一部分) is(用单数) eaten.
3.2 percent of the water(这里是不可数名词) is(单数) drunk.
实在
后者的用法是The percentage of +sth+ is,注意这里不管后面跟的是什么词,都用is(这里忽略别的时态)
1.The percentage of the students is 46.
2.The percentage of the water is 46.
A
percent: 注重百分之几的具体统计数字,用法就是前面加数字
percent：注重“比例”这个意思, 用法自然是名词的比例，而非数字的比例
参考http://z.baidu.com/question/27051332.html?si=2
percent
adj. 百分之一,(与基数词连用)百分之...的
n. 百分之...
percentage
n. 百分比
percentage 前不加数字，