1、六、形容词（比较级和最高级）1形容词的比较级和最高级的变换形式 在形容词词尾加上-er，-est构成比较级、最高级。如： 双写最后一个字母，再加上一er、-est构成比较级、最高级。如： 以不发音的字母e结尾的形容词，加上-r，-st构成比较级、最高级。如： 以字母y结尾的形容词，把y改为i，再加上-er、-est构成比较级、最高级。如： 双音节、多音节形容词，在单词前面加上-morel-mo成比较级、最高级。如： 不规则变化的形容词。如：2原级用法 原级比较：as+形容词或副词原级+as 在否定句或疑问句中可用so.as。例如：He can not run so fast as you. 当
2、as.as中间有名词时采用以下格式：as +形容词+a+数名词as+many/much+名词如：This is as good an example as the other is.I can carry as much paper as you can. 用表示倍数的词或其他程度副词做修饰语时，放在as的前面。如：This room is twice as big as that one.I can carry as much paper as you can. 用表示倍数的词或其他程度副词做修饰语时，放在as的前面。如：This room is twice as big as that o
3、ne.Your room is the same size as mine. 倍数表达法 A is three(four, etc) times the size (height,length etc.)of B.如：The new building is four times the size(the height)of the old one.这座新楼是那座旧楼的四倍大（高）/这座新楼比那座旧楼大（高）三倍。 A is three(four, etc.) times as big (high,long,etc.)as B.如：Asia is four times as large as E
4、urope.亚洲是欧洲的四倍大/亚洲比欧洲大三倍。 A is three (four etc.) times bigger (higher, longer etc.) than B.如：Your school is three times bigger than ours.你们的学校比我们的学校大三倍。用times表倍数通常用于三倍以上，两倍可以用twice或double.3形容词比较级的用法形容词的比较级用于两个人或事物的比较，结构形式如下： A+is/ arm/are 形容词比较级+than+B如：She is taller thanTom is more athletic than Sa
5、m. 比较级+and+比较级，表示“越来越”例如：warmer and warmernicer and nicermore and more beautiful the+比较级，the+比较级如：The more you read the book, the more interesting you found. 比较级的修饰语有：much,far,even,a little,a bit,a lot 等。如：He made fewer mistakes than I did.He is even richer than I.4形容词最高级的用法形容词最高级用于两个以上的人和物进行比较，其结构形
6、式为：主语+谓语（系动词）+the +形容词最高级+名词+表示范围的短语或从句，比较常用在in，of 或among的结构中，形容词最高级前+the.如：I am the best of the three.He is the thinnest boy in my class.5重点与难点 形容词原级表示比较级含义：如：John is not so stupid as Mike.John is less stupid than Mike.John is cleverer than Mike.约翰不象迈克那么笨。 用比较级表示最高级：如：约翰是班里最高的男生。John is taller than
7、 any other boy in the class.John is the tallest boy in the class.John is taller than any other boy. the more.the more.表示越.越.如：The more books you read,the wider your knowledge is.The more food you eat,the fatter you are. more and more.表示越来.越如：More and more students realized the importance of a foreign language.Our country is getting stronger and stronger. 如在两者间表示最时，要在比较级前加the，而且还用of the two,of the pair短语：如：John is the clever of the two boys.of the two boys,John is the clever.