eg:You will fail the exam unless you prepare for it
=You will fail the exam if you don’t prepare for it.
He won’t know the word’s meaning unless he looks it up in the dictionary.
=If he doesn’t look up the word in the dictionary, he won’t know its meaning.
误: Don't come in unless you will be invited to.
正: Don't come in unless you're invited to.
误: Unless he will come, we won't be able to go.
正: Unless he comes, we won't be able to go.
as soon as 的用法
as soon as 是连词，引导时间状语从句，意为“一。。。.就。。。。”。
I will tell him the news as soon as he comes back。（动作未发生）
As soon as I came in, Jack cried. (动作发生在)
so .... that.... 如此....以致于.... (that 引导的结果状语从句)
The teacher speaks so fast that I can't catch the words.
Eg：we have so much time that we can finish the work very well.
Fill in the blanks with unless, as soon as or so ... that.
1. ___________ her father died, the stepsisters made her do all the chores.
2. She was____ busy_____ she had no time to make a dress for the party.
3. The mice knew that ___________ they helped her make a dress, she would not be able to go to the party.
4. ___________ the prince saw her, he fell in love with her.
5. The prince knew that _________ the girl’s foot could fit the shoe, it was not the right girl.
6. The new couple were ____ happy ______ they couldn’t stop smiling when they got married.
1.As soon as 2.so…that 3.unless 4.As soon as 5.unless 6.so that