Question

notuntil和until的区别

Answer 1

until 与not until的用法区别！

Answer 2

您好，我是精锐小刘老师，希望我的回答对你有帮助
until / not...until之间的区别：
until“直到”,表示某一种行为一直持续到某一时间。用在肯定句中，句子的谓语动词必须是可延续性的。

not...until“直到...才”表示直到某一时间,某一行为才发生,之前该行为并没有发生. 用在否定句中，主句中的谓语可以是延续性的也可以是短暂性动词。

1. I studied Englis until 9 o'clock last night.
我咋晚学英语一直学到9点钟.(表示9点前一直在学)
2. I did not study Englis until 9 o'clock last night.
我咋晚直到9点钟才学英语.(表示9点才开始学)
3. I waited for five hours until it was dark. I had to give it up.
4. I didn't go to sleep until 11 o'clock
not until 还可以用于强调句中，也可以放在句首，句子要采用部分倒装
5. It was not until he came back that I went to sleep
6. Not until he came back did I go to sleep.

Answer 3

not … until,until
A.until表示动作、状态的持续,强调“一直到……为止”,或强调某个动作或状态一直持续到另一个动作或状态出现之前.常与表示延续性动作的动词连用.
如：* I waited until three o’clock,but he didn’t come.* He lived with his parents until he graduated from college.
B.not … until表示“到……为止；直到……才”,常与表示瞬间性动作的动词连用.
如：* The noise of the street didn’t stop until midnight.* The children didn’t come home until it was dark.* I didn’t know the truth until you told me.