New Words：

care [ker]
n.护理；照顾；小心；照料
v.关心；关怀；在意；关注

Sample Sentences：

He's old enough to take care of himself.
I'm not worried about her，she can take care of herself.

It's no need to care too much.
You don't care about anything but yourself.
Don't care too much about what people think of you.

New Words：

earn [ɜːrn] 赚;赢得;挣钱
earn money 挣钱
earn good money 赚大钱
income [ˈɪnkʌm] 收入;收益;所得

Sample Sentences：

How much does she earn?
How much money can you earn one year?
How much money do you hope to earn at age 30?

How could they live on such a small income?
Count it please, how much income (is it) today?

New Words：

each [iːtʃ] 每;每个
each other 彼此;互相
impolite [ˌɪmpəˈlaɪt] 不礼貌的

Sample Sentences：

We each have our own car.
The teacher gave each child an apple.
How much do your parents earn each month?

We must help each other.
If you love each other, why not get married?

It is impolite to ask about other people's income.
Some people think it is impolite to ask someone's age.

earn [ɜːrn] 赚;赢得;挣钱
income [ˈɪnkʌm] 收入;收益;所得

New Words：

argue [ˈɑːrɡjuː] 争论；争辩；争吵

argue with someone 与某人争论、争吵
argue about something 为…争论、争吵

Sample Sentences：

Why are they always arguing?
The two girls began to argue again.
I won't argue with you about this problem.
You shouldn't argue with your mom. It's impolite.
They are always arguing with each other about money.

each [iːtʃ] 每;每个
each other 彼此;互相
impolite [ˌɪmpəˈlaɪt] 不礼貌的
problem [ˈprɒbləm] n.难题；困难；棘手的问题

New Words：

bet [bet] 打赌

Sample Sentences：

She bet me £ 20 that I wouldn't do it.
I bet we can find them on the second floor.
I bet you were nervous before you sit down.