英语中 if和then是不能同时使用?请指教

英语中 if和then是不能同时使用?请指教
英语中 if和then是不能同时使用?
请指教

英语中 if和then是不能同时使用?请指教
可以的.
英语中,成对的连词不能同时出现在一个句子中,如because和so,although和but,但是如果有一个是副词的话,就没问题.所以：
If you make a mistake,then you will be punished.
也可以说成If you make a mistake,you will be punished.
因为then是副词,不是连词.另外一个类似的
副词是yet,如：
Although he is ill,yet he is working as usual.此句中的yet不能改成but.

举个例子，感觉应该可以啊

可以
then:
(1) adv. 当时；那时
at that time;at a time that you have just spoken of
[例句]
Mother was a little girl then.
当时母亲还是个小姑娘。
We were s...

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可以
then:
(1) adv. 当时；那时
at that time;at a time that you have just spoken of
[例句]
Mother was a little girl then.
当时母亲还是个小姑娘。
We were still at school then.
当时我们还在上学。
I shall have left school then.
到那时我已毕业了。
I was living at home then.
我当时在家住。
I will be at college then.
我那时将上大学了。
(2) adv. 然后；后来；接着
next;afterwards
[例句]
I went home for dinner and then went to the cinema.
我先回家吃饭，然后去看电影。
Follow this road to the bookstore,then turn to the left.
顺着这条街到书店，然后向左拐。
He wrote a letter and then stood up.
他写完一封信，然后站了起来。
First comes spring then summer.
春天先到，夏天跟着来了。
(3) adv. 如果是那样；那么
if that is so
[例句]
You feel ill?Then go home.
你觉得难受，是吗？那么回家吧。
If you're free,then come.
你如果有空，那么就来吧。
If you are tired,then you had better stay at home.
假如你累了，那么你最好待在家里。
You don't want to go after all, then.
那么说，你毕竟是不想去了。
(4) adv. 除此之外
and also;besides,
[例句]
Then,there's Brown still to be invited.
此外，布朗还有待被邀呢。
and then
此外；再者
And then we have to consider the damage done to our school by the storm.

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