八年级上unit12

1、形容词的最高级1.形容词最高级的构成（1）规则变化1)在形容词后直接加-est，如：tall-tallest，short-shortest 等。2)以不发音的字母e结尾的只需在末尾加-est，如：nice-nestest，large-largest等。3)以辅音字母+y结尾的形容词，要先把y变成i，然后再加-est，如：heavy-heaviest，happy-happiest。4)若以重读闭音节结尾且末尾只有一个辅音字母，先双写这个辅音字母，然后再加-est， 如：fat-fattest， hot-hottest等。5)多音节和部分双音节的形容词，可不是在末尾变化，而是在前面加most。如：

2、careful -most careful athletic-most athletic等。（2）不规则变化 good /well-best bad /badly -worst many /much -most little /few -least2.形容词最高级的用法 当需要对三者或三者以上的人事物进行比较，表示“最”的含义时，需要用形容词的最高级。在使用最高级时应注意以下几点：（1）最高级通常要加定冠词，但前面有物主代词、名词所有格等修饰时，则不用定冠词。如： Jim is Mikes best friend. 吉姆是迈克最好的朋友。（2）常与介词in或of引导的短语连用。in后面是比较范

3、围，of后面是比较对象。如：She is the oldest of these children. 她是这些孩子中年龄最大的。 Lily is the youngest in her class. 莉莉在她班里年龄最小。（3）最高级前可用序数词，二者共同修饰后面的名词，其结构为：the+序数词+形容词最高级+名词单数。如：The Yellow River is the second longest river in China . 黄河是中国的第二长的河。（4）最高级前可加one of ，即：one of +the +形容词最高级+名词复数，表示最.的之一。如：He is one of th

4、e smartest students in this school. 他是这所学校中最聪明的学生之一（5）有时被最高级修饰的名词前还可用不定冠词，但这时不含比较的意思，只是表示非常，很。如： Their performance was a greatest success. 他们的演出非常成功。一 单项填空1. I did all the work. I m _ of all.A. more tired B. the most tired C. tiredest D. tireder 2. Yesterday was not _than today . A. much hot B. more

5、 better C. the hotter D. hotter 3. Of the two American students, Emma is _one. I think you can find her easily. A. tallest B. the taller C. taller D. the tallest 4. Hainan is a very large island. Its the second _ island in China. A. large B. larger C. largest D. most large 5. Xian is one of _ capita

6、l _ in China. A. older ; city B. the older ; city C. oldest ; cities D. the oldest ; cities二 用所给形容词的适当形式填空1. The seats in the middle of the cinema are _ of all. (good)2. Of all the boys Tom spent _ time and made _ mistakes(错误).(little , few )3. Miss Li is one of _teachers in our school.(popular)4. Jim is _ than all the other students in the class. He is _ of all.(tall )答案：一.1