1、直接使用比较级。
2、比较级 + than + the other + 复数名词/ + any other + 单数名词/ + any of the other + 复数名词。
3、比较级 + than + anything/ anyone else如：She is taller than her two sisters.She is the taller of the two sisters1.A＋be＋比较级＋than＋BThe Amazon Is longer than the Yangtze but the Yangtze is the longest river in亚马孙河比长江长，但是在中国长江是最长的河流2.主语＋谓语＋比较级＋名词＋than＋对等成分Kate has longer hair than Lisa.凯特的头发比丽萨的头发长。
3. Which/Who＋be＋比较级，A or B？Which is easier，math or English？数学和英语哪一个更简单？Who is taller，Tom or Jack？汤姆和杰克谁更高？
4. A＋be＋the＋比较级＋of the two用于两个人或事物之间的比较，意为其中一个比另一个更…”
5. ….数量＋比较级＋thanThis elephant is 200cm taller than this panda.这头大象比这只熊猫高200厘米。
6.比较级＋and＋比较级表示“越来越The weather is colder and colder.天气越来越冷。
7.The＋比较级…，the＋比较级… 表示“越…，就越……”The more you eat, the fatter you will be.你吃得越多，就越容易变胖。8.比较级表达最高级Tom is taller than any other boy in his class.汤姆比班上其他男孩都高。＝Tom is the tallest boy in his class
