在Science Research Writing的时候，如何让句子和段落之间的表达的意思连贯是一个让人头疼的事情。

而一旦句子之间出现gap，读者会出现理解偏差，作者也会陷入表达的误区之中。

一共有四种方法去增加句子连贯性：

只需要在下一个句子中重复上一个句子的部分内容即可，如：

One way to toughen polymers is to incorporate a layer of rubber particles. As a result, there has been extensive research regarding the rubber modification of PLA.

Pronoun (it, they): 代词；Pro-form (this method, these systems), 如：

Many researchers have suggested ways of reducing cost without affecting the quality of the image. These methods rely on data structures built during a preprocessing step.

Semicolon (";") 分号；relative clause: 关系从句, 如：

The procedure for testing whether components are operationally safe usually takes many hours; this means that tests are rarely repeated.

It has received much attention over the past few decades due to its biodegradable properties, which offer important economic benefits.

最常用的一种方法，这种方法最能让读者理解想表达的意思，甚至是只看到连词就知道后面句子想表达的内容。

天天读文献，发现自己实际一写作的时候脑子里只会剩下：Therefore和However

因此本文做了一定的汇总方便使用：

The experiment was unsuccessful ________ the measuring instruments were inaccurate.

The experiment was unsuccessful ________ the inaccuracy of the measuring instruments.

The measuring instruments were calibrated accurately, ________ the experiment was successful.

注意so不要用在开头，很不正式

British students are all vegetarians, __________ Norwegian students eat meat every day.

注意on the contrary和conversely一般都是用在完全对立中，不适合在例子句子中，而更应当用在如下句子：

Some experiments used uncalibrated instruments and succeeded; conversely, other experiments used carefully calibrated instruments and failed.

(a) _______ it was difficult, a solution was eventually found.

(b) _______ the difficulty, a solution was eventually found.

(c) It was difficult; ________ a solution was eventually found.

still和anyway不太常用，不正式

We used a batch processing system because it was more effective; ___________ it was faster.

Besides一般会用在更有说服力的句子里面。

学习资料：

Science Research Writing: For Non-Native Speakers of English, Hilary Glasman-Deal, Imperial College London, UK