Kinetic trajectories are projected onto xx and yy variables in Figure 7. This figure shows two populated states. One corresponds to loosely gathered coil states while the other is the native state with a higher density.
   在这个新段里，新插入的第二句使每句均能从旧信息出发到新信息结束。第一句与第二句之间以“Figure ”相连而第二句与第三句之间以“two states”相连。而新信息“coil states ”则出现在第三句的最后。整段环环相连，成为一个整体。再看一个例子：

   The accuracy of the model structures is given by TM-score. In case of a perfect match to the experimental structure, TM-score would be 1.

   在第二个句子里，旧信息“TM-score”被埋在中间，被新信息“a perfect match to experimental structure ”打断了。这里建议修改如下：

   The accuracy of the model structures is measured by TM-score, which is equal to 1 if there is a perfect match to the experimental structure.

   科技写作中的最大问题就是新旧信息顺序颠倒。新信息和旧信息对作者来说可能不是很好区分，因为他非常熟悉所有的信息。为了避免这种问题，不管什么时候，每当你开始写新句，你应该问问自己，这些词前面有没有被提到过。一定要把提到过的放前面，没提过的放后面。

   2. 读者想在主语之后立刻看到行为动词。对一个说明谁在做什么的句子，读者需要找到动词才能理解。如果动词和主语之间相隔太远，阅读就会被寻找动词打断。而打断阅读就会使句子难以理解。这里有个例子：

   The smallest URFs (URFA6L), a 207-nucleotide (nt) reading frame overlapping out of phase the NH2-terminal portion of the adenosinetrip hosphatase (ATPase) subinit 6 gene has been identified as the animal equivalent of the recently discovered yeast H+-ATPase subunit 8 gene.

   同样的句子，将动词放在主语之后：

   The smallest of the URFs is URFA6L, a 207-nucleotide (nt) reading frame overlapping out of phase the NH2-terminal portion of the adenosinetriphosphatase (ATPase) subinit 6 Gene; it has been identified as the animal equivalent of the recently discovered yeast H+-ATPase subunit 8 gene.

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