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
care
as...as
brilliant
almost

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

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.

New Words：

amaze [əˈmeɪz] v. 令人惊奇;使惊奇
amazing [əˈmeɪzɪŋ] adj. 令人吃惊的；惊人的；太神了

Sample Sentences：

I'm amazed they didn't hear me.
I was amazed at his speed of working.
She was amazed how little he had changed.

It's amazing present for me, thank you!
The film is so amazing that I'd like to see it again.
Don't you think that this paper plane is amazing? If you do, then you can make one by yourself.

New Words：

afraid [əˈfreɪd] adj. 害怕；担心

Sample Sentences：

Don't be afraid.
Are you afraid of spiders?
She was afraid to open the door.
Are the children afraid of the dark?
Don't be afraid to ask if you don't understand.
Everyone thinks I should be afraid of you. But I'm not.