therefore后面加逗号吗

therefore放句首后要有逗号，放句首做插入语后无逗号。eg.1、Therefore，we must learn English well.2、They therefore can learn English well.

therefore后面加逗号吗

therefore在整句中，句首后要有逗号，句中可以按一般副词使用也可以做插入语。用在分句中，这时一般词前要用分号，其后用不用逗号都可以，若第二个分句前是逗号或无符号，则要注意therefore是副词，要保持句子完整，应用and therefore。

therefore要用逗号吗

1、整句中时一般不放，句末，句首后要有逗号。句中：1、按一般副词使用；2、做插入语。

（1）Therefore，we must learn English well.

因此，我们必须学好英语。

（2）They therefore can learn English well.

因此他们能学好英语。

（3）Many fast food restaurant ,therefore,have red furniture or walls.

因此，许多快餐店都有红色的家具或墙壁。

2、这时一般词前要用分号，其后用不用逗号无所谓。若第二个分句前是逗号或无符号，则要注意therefore是副词，和so不一样，要保持句子完整，应用and therefore。

（1）I had a headache;therefore I could not go to your party.

我头痛，所以不能参加你的聚会。

（2）I was ill,and therefore could not come.

我病了，所以不能来。

therefore和so的区别

1、so常用于口语之中，而therefore更常用于书面体等正式文体之中。

It was raining heavily, so I didn’t go outside.

当时下着大雨，所以我没有外出。

She had experience in this area, therefore she seemed to be fit for the job.

她在这方面有经验，因此似乎她适合这份工作。

2、so是连词，连接句子，so后不可有逗号，so前可有逗号。

therefore是副词，可以放在句中，也可放在句首修饰句子。放在句首时，其后可有逗号也可无逗号。放在句中时，若作插入语，前后可有逗号。

I was very upset, so I wanted to be alone.

我当时非常伤心，所以我想单独待会。

（连词so用于引导句子）

The bag is very heavy and therefore very difficult to carry around.

这个包非常重，因此很不方面携带。

（therefore放在句中，不引导句子）

The problem hasn’t been solved yet、We shall, therefore, keep working on it.

问题尚未解决。因此我们要继续努力。

You didn’t pay for the fee in time; therefore, you will be charged a late fee.

你没有及时支付费用，因此需要支付滞纳金。

therefore的用法例句

1、The truth is that junk bonds were misnamed, and therefore misunderstood.

事实上人们对垃圾债券的称谓有误，所以产生了误解。

2、They had seen him trawling and therefore knew that there were fish.

他们曾见过他用拖网捕鱼，因此知道那里有鱼。

3、Men are anxious to improve their circumstances, but are unwilling to improve themselves; they therefore remain bound.--James Allen

人们总是渴望改善周遭环境，但是却不愿意改善自己，因此总停留在原地，无法进步。

4、He's only 17 and therefore not eligible to vote.

他只有17岁，因此没有投票选举的资格。

5、He lost his health, and therefore his difficulties increased.

他身体虚弱， 因此更增加了他的困难。

6、The Chinese Christians, therefore, practically excommunicate themselves from their own clan.

所以， 中国的_简直是被逐出了自己的家族了。

7、It rained and therefore the football match was postponed.

天下雨，足球赛因此而延期了。

8、They therefore can do nothing good of themselves.

所以他们靠自己是什么好事也做不成的。

9、He was busy, therefore, he couldn't come.

他忙得很， 所以没有来。

10、He was ill, and therefore could not come.

他病了， 所以未能来。