下面小编为大家整理了雅思写作的三个必备常识，供考生们参考，以下是详细内容。
　　一、： 避免空洞的单词和词组
　　1. 一些空洞的单词或词组根本不能为句子带来任何相关的或重要的信息，完全可以被掉。比如下面的句子： When all things are considered ， young adults of today live more satisfying lives than those of their parents， in my opinion. 这句话当中的 when all things are considered 和 in my opinion 都显得多余。完全可以去掉。改为：
　　Young adults of today live more satisfying lives than their parents.
　　2. 有些空洞和繁琐的表达方式可以进行替换，例如： Due to the fact that our grandparents were under an obligation to help their parents， they did not have the options that young people have at this point in time. due to the fact that 就是一个很典型的繁琐的表达方式的例子，可以替换，简化为下面的表达方式： Because our grandparents were obligated to help their parents， they did not have the options that young people have now.
　　第二： 避免重复
　　1. 尽量避免重复使用同样的词汇。或者有的时候虽然词汇没有重复，但意思却有重复。这时候可以做一些简化的工作。例如下面这个例子： The farm my grandfather grew up on was large in size. large 对一个 farm 来说就是 size 方面的 large ，所以 in size 可以去掉，改为： The farm my grandfather grew up on was large. 更简洁的表达方式为： My grandfather grew up on a large farm.
　　2. 有时一个词组可以用一个更简单的单词来替换，例如： My grandfather has said over and over again that he had to work on his parents' farm. 这里的 over and over again 就可以改为 repeatedly ，显得更为简洁： My grandfather has said repeatedly that he had to work on his parents' farm.