你的英语写作中总是重复许多短句吗？遇到这种情况，你需要使用连接词把句子串连起来，使句子更顺畅。那么该如何使用连接词呢？首先，来看以下这段带有几个连接词和很短的句子的内容 :
Some sentences are short. Some sentences can be very long. Both types are useful. If you use only short sentences all the time, it can be boring to read. If you use only long sentences all the time it can be confusing to read. People will soon lose interest in what you have to say.
Longer (not long) sentences can add color to your story. Longer sentences can add variety to your sentence. Longer sentences can help you avoid excessive repetition. Longer sentences can help you create a flow to your work.
这段内容可能有些枯燥，让我们来加上一些连接词，然后比较一下有哪些不同 :
Some sentences are short while others can be very long but both types are useful. If you use only short sentences all the time, it can be boring to read. However, if you use only long sentences all the time, it can be confusing to read and people will soon lose interest in what you have to say.
Longer (not long) sentences can add color and variety to your story and they can also help you avoid excessive repetition, creating a flow to your work.
第二段加上连接词后，阅读的感觉更自然流畅，因为连接词把句子与句子间的语意串连起来了，也就不需要一次又一次重覆写出相同语意的句子。
那该如何知道，什么时候使用哪个连接词呢？首先要确定句子想表达的语意。是要连接两个相近的意思（例如as）? 两个相反的意思（例如but）? 两个可以替换的意思（例如or）? 还是一个句子的意思从属于另一个句子（例如because / since / so）？要依据需求与功能，选择所要使用的连接词。传统上来说，通常不会将连接词放在句首，然而在现代英语中，把连接词放在句首是可以的，而且也要记得的是避免在一个句子中使用太多的连接词，造成冗长与累赘之感。
