Ⅲ. 同学们学习了新的语法知识——比较级和最高级，大家在讨论单词的变化规律。请仿照下面的例子，写出下列形容词/副词的比较级和最高级的形式。
例：tall—taller—tallest
1. light 2. strong
3. large 4. fine
5. big 6. fat
7. easy 8. early
9. quickly
10. interesting

1. lighter; lightest 2. stronger; strongest
3. larger; largest 4. finer; finest
5. bigger; biggest 6. fatter; fattest
7. easier; easiest 8. earlier; earliest
9. more quickly; most quickly
10. more interesting; most interesting

【分析】要解决这类题，需先回忆形容词/副词变比较级和最高级的规则：①单音节词：一般直接加-er（比较级）、-est（最高级）；以不发音e结尾的加-r、-st；重读闭音节（辅音+元音+辅音结尾且重读）需双写尾字母再加-er、-est；以“辅音字母+y”结尾的，变y为i再加-er、-est。②多音节词（部分双音节词）：前面加more（比较级）、most（最高级）。再逐个判断每个单词的类型，按规则变形即可。
【解析】1. light是单音节词，直接加-er/-est→lighter; lightest；2. strong是单音节词，直接加-er/-est→stronger; strongest；3. large以不发音e结尾，加-r/-st→larger; largest；4. fine以不发音e结尾，加-r/-st→finer; finest；5. big是重读闭音节词，双写尾字母g加-er/-est→bigger; biggest；6. fat是重读闭音节词，双写尾字母t加-er/-est→fatter; fattest；7. easy以辅音+y结尾，变y为i加-er/-est→easier; easiest；8. early以辅音+y结尾，变y为i加-er/-est→earlier; earliest；9. quickly是多音节副词，加more/most→more quickly; most quickly；10. interesting是多音节形容词，加more/most→more interesting; most interesting。
【答案】1. lighter; lightest 2. stronger; strongest
3. larger; largest 4. finer; finest
5. bigger; biggest 6. fatter; fattest
7. easier; easiest 8. earlier; earliest
9. more quickly; most quickly
10. more interesting; most interesting
【知识点】形容词比较级构成、形容词最高级构成、副词比较级最高级
【点评】本题考查英语中形容词和副词比较级、最高级的基础变形规则，是英语语法的核心基础考点，需准确掌握不同类型单词的变形方法，整体难度较低，适合巩固基础。
【难度系数】0.8

Ⅳ. 同学们在做比较级和最高级的练习。看图仿照例句，写一写。
例：
Ken is fast.
Tom is faster than Ken.
Sam is the fastest of the three.
1.
The snake has a big mouth.
The crocodile has a than the snake.
The hippo has of the three.
2.
Cody is heavy.
Harley is .
Max .
3.
Dan is fat.


4.
Betty is beautiful.


5.
The dog is dangerous.

1. bigger mouth; the biggest mouth
2. heavier than Cody; is the heaviest of the three
3. Eric is fatter than Dan.
Peter is the fattest of the three.
4. Jenny is more beautiful than Betty.
Winnie is the most beautiful of the three.
5. The tiger is more dangerous than the dog.
The lion is the most dangerous of the three.

【分析】
本题考查英语形容词比较级和最高级的用法，解题思路为：1. 当句中出现比较级标志词than时，需使用“形容词比较级 + than + 比较对象”的结构；2. 当句中出现三者范围标志of the three时，需使用“the + 形容词最高级 + of the three”的结构；3. 结合各小题给出的原级形容词，根据规则转换为对应的比较级、最高级形式（如重读闭音节双写尾字母、多音节词加more/most等），再匹配主语完成句子。
【解析】
1. 第一题中，原级形容词为big，比较级为bigger，故第一空填bigger mouth；三者中最大的，用最高级形式，故第二空填the biggest mouth。
2. 第二题中，原级形容词为heavy，比较级为heavier，故第一空填heavier than Cody；三者中最重的，用最高级结构，故第二空填is the heaviest of the three。
3. 第三题中，原级形容词为fat，比较级为fatter，故第一句为Eric is fatter than Dan；最高级为fattest，故第二句为Peter is the fattest of the three。
4. 第四题中，原级形容词beautiful为多音节词，比较级为more beautiful，故第一句为Jenny is more beautiful than Betty；最高级为most beautiful，故第二句为Winnie is the most beautiful of the three。
5. 第五题中，原级形容词dangerous为多音节词，比较级为more dangerous，故第一句为The tiger is more dangerous than the dog；最高级为most dangerous，故第二句为The lion is the most dangerous of the three。
【答案】
1. bigger mouth; the biggest mouth
2. heavier than Cody; is the heaviest of the three
3. Eric is fatter than Dan.
Peter is the fattest of the three.
4. Jenny is more beautiful than Betty.
Winnie is the most beautiful of the three.
5. The tiger is more dangerous than the dog.
The lion is the most dangerous of the three.
【知识点】
形容词比较级、形容词最高级
【点评】
本题为英语基础语法练习题，聚焦形容词比较级和最高级的核心结构，需掌握规则变化的形容词变形，结合语境准确运用，适合巩固基础语法知识。
【难度系数】
0.6