2017年下半年英语六级作文常用句型：表示原因
大学英语六级作文一直是考生重点关注的部分，也是考试的重难点，在备考阶段，大家可以背诵一些英语六级作文常用句型，考试的时候可以帮助自己提高作文水平，预祝同学们考试顺利。
表示原因
1)There are three reasons for this.
2)The reasons for this are as follows.
3)The reason for this is obvious.
4)The reason for this is not far to seek.
5)The reason for this is that...
6)We have good reason to believe that...
例如：
There are three reasons for the changes that have taken place in our life.Firstly，people’s living standard has been greatly improved.Secondly，most people are well paid， and they can afford what they need or like.Last but not least，more and more people prefer to enjoy modern life.
注：如考生写第一个句子没有把握，可将其改写成两个句子。如：Great changes have taken place in our life. There are three reasons for this.这样写可以避免套用中的表达失误。
