1、population, people
population人口，人数
people具体的人
①What is the population of China?
China has about 1.4 billion people.
中国有多少人口？
中国大约有1.4亿人口。
②How many people are there in your family?你家有多少人？
2、price, prize
price价格
prize奖，奖品，奖金
win the first prize 获得一等奖
the price is high/low.价格高/低
Xiaoming won the first prize in the speech contest.小明在演讲比赛中获得了一等奖。
3、a number of与 the number of
a number of许多，谓语动词用复数。the number of…的数目，谓语动词用单数。
①The number of students is increasing.学生的数量正在增加。
②我们学校的许多学生都参加了保护环境的活动。
A number of the students in our school take part in activities to protect the environment.
4、three of us与 the three of us
three of us我们（不止三个）中的三个
the three of us我们三个（就三个人）
The three of us——Tom, Jack and I went to the cinema.我们三个人——汤姆、杰克和我去看了电影。
5、next year与the next year
next year将来时间状语
the next year过去将来时间状语
①I'll be a high school student next year.明年我就是一名高中生了。
②My brother said he would go abroad the next year.我哥哥说他明年要出国。
6、for example与 such as
for example一般只列举一个例子
such as列举并列的许多个例子
l have been to a lot of American cities, such as New York, Atlanta and Chicago.我去过很多美国城市，比如纽约、亚特兰大和芝加哥。
7、in the market, on the market
in the market在市场上
on the market出售
①She sells flowers in the market.
她在市场上卖花。
②Fresh vegetables are on the market now.新鲜蔬菜现在上市了。
8、in the field, on the field
in the field在野外
on the field在战场上
Mom is pulling bitter herbs in the field.妈妈正在野外拔苦菜呢。
In spring, the fields are filled with colorful little flowers.春天，田野里开满了五颜六色的小花。
Many soldiers lost their lives on the field.许多士兵在战场上牺牲了。
9、on earth, on the earth, in the earth
on earth在人间，到底，究竟
on the earth在地上，在地球上
in the earth在地下，在泥土里
①What happened at the station yesterday on earth?昨天在车站到底发生了什么事情？
②There are abut over 200 countries on the earth.地球上大约有200多个国家。
③There are considerable amounts of coal, oil and natural gas in the earth.
地下蕴藏着不少煤、石油和天燃气。
10、be familiar to, be familiar with
be familiar to某物对某人来说是熟悉的
be familiar with某人熟悉某物
①The film is familiar to me.
这部电影我很熟悉。
②I'm familiar with the film.
我熟悉这部电影。
11、work as, act as
work as工作是…
act as充当某种职务或身份，或扮演某种角色
He works as a teacher.他是一名教师。
He acts as an interpreter.他担任翻译。
12、hurt, injure, wound
hurt感情上受伤
injure事故中受伤
wound战争中受伤
He was wounded in the war.
他在战争中受了伤。
13、turn, get, grow
turn（颜色变）后常接表颜色的词
get（结果变）强调变的结果
grow（成长变）强调过程，逐渐的变化
turn yellow/red/green变黄/红/绿
get tired/excited累了/兴奋、激动
grow big /strong长得大/强壮
14、besides, except, except for
besides除了…还（包括在内）
except除了（不包括在内）
except for整体…除了某一点以外
The composition is good except for a few spelling mistakes.除了几个拼写错误外，这篇作文写得很好。
15、and, or
and并且
or或者，否则，常用于否定句中
I don't like apples or bananas.
我不喜欢苹果和香蕉。
Hurry up and you'll catch the bus.
快点，你会赶上公共汽车的。
Hurry up or you'll miss the bus.
快点，不然你会赶不上公共汽车的。
