句中如有空洞的字眼，就是累赘，也会有失简洁。以例3和例4来说明
例3：Patience is generally considered to be an essential quality in a teacher.
句中的to be an essential quality是主词补语，用来修饰主次patience，然而其中的to be没有什么意义，省略它也不会影响句意。
剩下来的an essential quality仍可做主语补语，成为：Patience is generally considered an essential quality in a teacher.
其实，consider后面的to be都可以省略，不会影响句型，也不会改变句意。从修辞的角度来说，这个位置的to be就是累赘的字眼，应该删掉以求简洁。
例4：Most doctors agree that smoking makes a contribution to lung cancer.
句中的make a contribution to这种表达方式比较累赘，因为动词make是一个空洞的字眼。如果把contribution改成动词contribute，用来取代make，可以省下一个空洞的字眼，也加强了简洁性：Most doctors agree that smoking contributes to lung cancer.
例5：The wonder of the Internet would have been unable to imagined a decade ago.
句中的unable to be imagined其实可以用一个字来取代，十分简洁：
The wonders of the Internet would have been unimaginable a decade ago.
可以用一个形容词单字表达清楚的，就不必动用到一个片语。如例6
例6：It Is much more difficult to clone an organism of a complex nature than it is to clonebacteria.
介词短语of complex nature修饰前面的organism，其中的nature是比较空洞的的字眼。如果省略不要，直接以complex来修饰organism会比较简洁。
It is much more difficult to clone a complex organism than it is to clone bacteria.
不过它的重要性一般是居于清楚性之后。写文章时首先要顾虑是否清楚。
写完文章后一定要再看一遍，挑出所有可以精简的低分表达。通常从用字句型两方面着手，就能剔除所有重复与累赘之处，让文章更精简。
了解了这么多，大家是不是对于更好的雅思写作表达有了一些认识了呢？更多雅思写作指导，欢迎随时联系A加未来雅思课程培训老师！
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