英语中使用比较等级须知
1.要注意同类的事物或同等成分才能比较
wrong:The face of her father looks older than her uncle.(face不能同uncle比较)
Right:The face of her father looks older than that of her uncle.(that=face)
Right:His father's face looks older than her uncle's(uncle's=uncle's face)
她父亲的面貌看起来比她伯父还老一些。
2.要避免使用双重比较级和最高级
Wrong:His younger brother was more stronger than he.(stronger已是比较 级，前面无须再加more。)
Right:His yonger brother was stronger(or much stronger) than he.
(去掉多余的more，或将more改成much)
他弟弟比他强壮。
3.使用比较级时，要避免和自身比较
Wrong:Every morning he arrives earlier than any student in the class.(any student 包括he在内)
Right:Every morning he arrives earlier than any other student in the class.
Right:Every morning he arrives earlier than all other students in the class.
(这两句中的any other student和aⅡ other students都不包括he在内。)
每天早晨他都比班上其他同学到得早。
4.使用最高级时，注意不要将比较的东西排除 在整体之外。
Wrong:Mary is the most beautiful of all her sisters.(Mary不在比较范围alI her sisters之内)
Right:Mary is the most beautiful of all the sisters.(将her改为the，Mary就没有被排 除在all the sisters之外)
5.两者相比较，一般用比较级，不用最高级
Wrong:He is the most diligent of the two boys.
Right:He is the more diligent of the two boys.
他是两个男孩中较用功的一个。
6.要避免不能加以比较的形容词比较
Wrong:The theatre had a more full house.
(fuⅡ house本身就意味着客满了，无座了。故full之前不能再加more)
Right:The theatre had a full house.
戏院客满。
这类描述性形容词，从理论上说是不能比较的。但在实际生活中，人们并不严格遵循这个规定，比如Perfect就可用比较级和最高级。
This is more perfect than that.
这个比那个更完美。
I have just bought the most perfect hat.
我刚买了一顶最完美的帽子。
7.要注意以or结尾的形容词比较级的用法
Wrong:Peter is junior than Jack in years,but superior than Jack in knowledge.
Right:Peter is junior to Jack in years, but superior to Jack in knowledge.
彼得年龄比杰克小，但学识比他渊博。
以or结尾的比较是从拉丁文形容词比较转化过来的，后面不用连词than，而用介词to。
8.要注意冠词在比较等级中的用法。
在as……as及其否定结构中，形容词若作定语修饰可数名词单数时，则不定冠词a/an不能放在形容词之前，只能置其之后。例如:
Wrong:I have never seen so a beautiful place as Guilin before.
Right:I have never seen so beautiful a place as Guilin before.
Wrong:This is just as a good example as the other.
Right:This is just as good an example as the other.
这个例子跟别的一样好。
作表语用的形容词最高级，如果不与别的事物相比较，前面常常不加定冠词the。例如:
Wrong:The loss of water and soil was the most serious in this area.
Right:The loss of water and soil was most serious in this area.
这个地区水土流失严重。
