not until用法和句子
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not until用法和句子
not until用法和句子
not until用法和句子
until 是直到.
如:You have to stand on it until you can go against it .
not until 是在...之前
如:You can not go against it until you can earn your life .
until一般不放在句首,后面跟时间词连用
如：He came back until midnight.
not until:可放句首,但主句要用倒装．
Not until midnight did he came back home.
还有一种用法与until相似．
He did not come back home until midnight.
until
prep.
(=to the time of)直到...时,到...为止
[常用在否定句中](=before)在...以前; 直到...才; 不到...(不)
until his death
直到他死
until four o'clock
直到四点钟
He did not go until night.
他直到夜里才走.
It was not until yesterday that I noticed it.
直到昨天我才注意到这件事.
两个不能说区别,因为not until本来就是until的否定,表示直到.才
not...until 直到……才
1) I hadn't realized she was foreign until she spoke. 她不说话我还一直不知道她是个外国人。
2) I won't stop shouting until you let me go. 你不放我，我就一直喊叫。
3) Among the great mathematicia...
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not...until 直到……才
1) I hadn't realized she was foreign until she spoke. 她不说话我还一直不知道她是个外国人。
2) I won't stop shouting until you let me go. 你不放我，我就一直喊叫。
3) Among the great mathematicians there are about as many who showed mathematical talents in childhood as there are those who showed none at all until they are older. 在伟大的数学家中，童年就显露数学才华的人和直到相当年龄才显露才华的人差不多一样多。
不难看出，作连词的until用于否定句中,表示主句的动作在从句的动作发生之前尚未发生，或者说主句的动作在从句的动作发生之后才开始。一般可译为“直到……才”。
It is (was) not until + 时间状语(从句)+ that +主句
1) It was not until yesterday that I remembered it. 直到昨天我才记起这事。
2) It was not until I saw Margaret next morning that I felt happy. 直到我第二天早晨见到玛格丽特才感到高兴。
Not until +时间状语(从句)+主句的倒装句
1) Not until she got home did she
realize that she had lost her necklace. 直到她到了家才发现她丢了项链。
2) Not until the film had begun did she arrive. 直到电影开始她才到。
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