Unit 3 Same or Different 单元语法讲练比较级和原级（含答案解析）—新人教八年级上册

中小学教育资源及组卷应用平台
Unit 3 Same or Different 单元语法讲练
形容词和副词的比较级、as…as的用法
一、 比较级
比较级用于两个人或事物之间的比较，表示“更...”。
1. 构成规则：
规则 原级 比较级 例句
一般加 -er tall taller John is taller than Mike.
以e结尾，加 -r large larger The sun is larger than the moon.
辅音字母+y结尾，变y为i再加-er happy happier She looks happier today.
重读闭音节结尾，双写尾字母再加-er big bigger My room is bigger than yours.
部分双音节和多音节词，前加more beautiful more beautiful This picture is more beautiful than that one.
不规则变化 good/well better Health is better than wealth.
bad/badly worse His score is worse than mine.
many/much more I have more books than you.
little less I have less money than he.
far farther/further Let's walk farther. (距离更远)
Need further help (程度更深)
2. 比较级句型：
A + be + 比较级 + than + B (A 比 B 更...)
This box is heavier than that one.
Which is + 比较级, A or B (A 和 B，哪个更... )
Which is bigger, Canada or China
A becomes / gets + 比较级 + and + 比较级 (A 变得越来越...)
The weather is getting colder and colder.
The + 比较级..., the + 比较级... (越...就越...)
The more you practice, the better your English will be.
3. 比较级的修饰：
比较级前可以用 much, a lot, far, even, a little, a bit 等词来修饰，表示程度。
This movie is much more interesting than that one.
He is a little taller than me.
二、 as...as... 结构
as...as... 结构用于表示同级比较，意为“和...一样”。
1. 肯定形式：as + 形容词/副词原级 + as
A + be + as + 原级 + as + B (A 和 B 一样...)
Lucy is as tall as Lily.
A + 实义动词 + as + 副词原级 + as + B (A 做某事和 B 一样...)
Tom runs as fast as Jack.
2. 否定形式：not as/so + 形容词/副词原级 + as
A + be + not as/so + 原级 + as + B (A 不如 B...)
This book is not as interesting as that one.
A + don’t/doesn’t/didn’t + 动词 + as/so + 副词原级 + as + B (A 做某事不如 B...)
I don’t sing as well as her.
3. 倍数表达：倍数 + as + 原级 + as
This room is twice as large as that one. (这个房间是那个房间的两倍大。)
He has three times as many stamps as I do. (他的邮票是我的三倍多。)
巩固练习 (50题)
I. 单项选择
1. This question is ________ than the first one.
A. difficult B. more difficult C. most difficult D. the most difficult
2. The sun is ________ the moon.
A. big than B. bigger than C. bigger D. biggest than
3. Who is ________, your father or your mother
A. old B. older C. oldest D. the oldest
4. The story is ________ than I expected.
A. fun B. funny C. funnier D. more funnier
5. — How are you feeling today
— Much ________.
A. good B. well C. better D. best
6. My sister is ________ me.
A. as taller as B. as tall as C. so tall as D. as tall than
7. This computer is not ________ that one.
A. as expensive as B. as expensive than C. so expensive than D. expensive as
8. The ________ you work, the ________ progress you will make.
A. hard; great B. harder; greater C. hardest; greatest D. harder; great
9. He doesn't play tennis ________ he did last year.
A. as good as B. so well than C. as well as D. as better as
10. Which is ________, a tiger or a lion
A. strong B. stronger C. strongest D. the strongest
11. We have ________ rainfall this year than last year.
A. little B. less C. least D. the least
12. She is becoming ________.
A. beautiful and beautiful B. more and more beautiful
C. the more beautiful D. most beautiful
13. The Nile is ________ river in the world.
A. long B. longer C. longest D. the longest
14. This box is ________ that one. I can‘t carry it.
A. heavier than B. not as heavy as C. as heavy as D. heavy than
15. You should drive ________. The road is icy.
A. more careful B. more carefully C. careful D. most carefully
16. — How is your new job
— It’s ________ better than my old one.
A. very B. too C. much D. most
17. His new book is ________ his last one. I don’t like it.
A. as good as B. not as good as C. so good as D. better than
18. ________ you are, ________ you will make.
A. The more careful; the fewer mistakes B. More careful; fewer mistakes
C. The more carefully; the less mistakes D. More carefully; less mistakes
19. I have ________ books than you, but you have ________ money than me.
A. more; more B. fewer; more C. less; fewer D. more; less
20. This building is about ________ that one.
A. twice as tall as B. twice as taller as C. as twice tall as D. twice taller than
II. 用所给词的适当形式填空
21. This bag is too heavy. Could you give me a ________ (light) one
22. Your answer is ________ (good) than mine.
23. It is ________ (hot) today than it was yesterday.
24. Who is the ________ (tall) student in your class
25. She speaks English ________ (well) than I do.
26. The weather is getting ________ and ________ (cold).
27. This film is ________ (interesting) than that one.
28. He is not as ________ (hard-working) as his brother.
29. The ________ (much) you read, the ________ (fast) you will read.
30. My ________ (old) sister is two years ________ (old) than me.
31. Which is ________ (heavy), an elephant or a tiger
32. I think math is ________ (important) than history.
33. This street is ________ (narrow) than that one.
34. Things are getting ________ and ________ (bad).
35. He is one of ________ (famous) singers in China.
III. 句型转换（保持句意基本不变）
36. Tom is 16 years old. I am 15 years old. (合并为一句)
→ Tom is ________ ________ ________ me.
37. This book is interesting. That book is not interesting. (用比较级合并)
→ This book is ________ ________ that one.
38. My room is 10 square meters. His room is 10 square meters. (合并为一句)
→ My room is ________ ________ ________ his room.
39. I have 5 books. He has 10 books. (合并为一句)
→ I have ________ books ________ he.
40. She doesn‘t run fast. I don’t run fast, either. (合并为一句)
→ She runs ________ ________ ________ I.
41. The yellow coat is expensive. The blue coat is cheap. (用比较级合并)
→ The blue coat is ________ ________ the yellow one.
42. He is the tallest in his class. (改为同义句)
→ He is ________ than ________ ________ student in his class.
43. Canadian football is very different from American football. (改为同义句)
→ Canadian football is ________ ________ ________ American football.
44. This problem is less difficult than that one. (改为同义句)
→ This problem is ________ ________ ________ that one.
45. My computer was very expensive. His computer was very expensive, too. (合并为一句)
→ My computer was ________ ________ ________ his.
IV. 完形填空（用所给词的适当形式填空）
The Hare and the Tortoise
Everyone knows the story of the race between the hare and the tortoise. The hare was much (46) ________ (fast) than the tortoise. He could run (47) ________ (quickly) than any other animal in the forest. The tortoise, on the other hand, was one of the (48) ________ (slow) animals.
At the beginning of the race, the hare ran far ahead. He thought winning would be (49) ________ (easy) thing in the world. So he decided to take a nap. Meanwhile, the tortoise never stopped walking. He walked (50) ________ (slowly) but steadily.
When the hare woke up, he saw that the tortoise was much (51) ________ (close) to the finish line than he was. He ran as (52) ________ (fast) as he could, but it was too late. The tortoise was already there.
The story tells us that being steady is (53) ________ (important) than being fast sometimes. Slow and steady wins the race. It is one of (54) ________ (well-known) fables in the world. And the tortoise became (55) ________ (famous) than before after the race.
练习题答案与解析
I. 单项选择
1. B 【解析】多音节形容词difficult，比较级前加more。
2. B 【解析】big的比较级是bigger，且其后接than。
3. B 【解析】两者（爸爸和妈妈）之间比较“谁更老”，用比较级older。
4. C 【解析】funny是以辅音字母加y结尾，变y为i再加-er。
5. C 【解析】“感觉好多了”，good/well的比较级是better。
6. B 【解析】同级比较肯定形式“和...一样高”，用as tall as。
7. A 【解析】同级比较否定形式“不如...贵”，用not as expensive as。
8. B 【解析】“The+比较级..., the+比较级...”结构，hard和great的比较级是harder和greater。
9. C 【解析】修饰动词play要用副词well，同级比较否定形式用not as well as。
10. B 【解析】两者（老虎和狮子）之间比较“谁更强壮”，用比较级stronger。
11. B 【解析】rainfall是不可数名词，“更少的雨”用less修饰。
12. B 【解析】“变得越来越漂亮”，多音节形容词用more and more beautiful。
13. D 【解析】“世界上最长的河”，最高级前加the。
14. A 【解析】后句“我搬不动”提示前句是“这个箱子比那个重”。
15. B 【解析】修饰动词drive要用副词carefully，比较级是more carefully。
16. C 【解析】比较级better前可以用much来修饰，表示“好得多”。
17. B 【解析】后句“我不喜欢”提示新书“不如旧书好”，用not as good as。
18. A 【解析】“The+比较级..., the+比较级...”结构。Careful是形容词，mistakes是可数名词复数，故用the more careful和the fewer mistakes。
19. B 【解析】books是可数名词复数，“更少的书”用fewer；money是不可数名词，“更多的钱”用more。
20. A 【解析】倍数表达“是...的两倍高”，用twice as tall as。
II. 用所给词的适当形式填空
21. lighter 【解析】“更轻的”，light的比较级。
22. better 【解析】good的比较级。
23. hotter 【解析】hot的比较级，双写t再加-er。
24. tallest 【解析】“班里最高的”，用最高级。
25. better 【解析】well的比较级，修饰动词speaks。
26. colder; colder 【解析】“越来越冷”，比较级+and+比较级。
27. more interesting 【解析】多音节形容词interesting，比较级前加more。
28. hard-working 【解析】as...as...中间用形容词原级。
29. more; faster 【解析】“The+比较级..., the+比较级...”结构。much的比较级是more；fast的比较级是faster。
30. elder/older; older 【解析】“姐姐”可以用elder sister或older sister；“大两岁”用比较级older。
31. heavier 【解析】两者比较“谁更重”，heavy的比较级是heavier（变y为i再加-er）。
32. more important 【解析】多音节形容词important，比较级前加more。
33. narrower 【解析】narrow的比较级。
34. worse; worse 【解析】“越来越糟”，bad的比较级是worse。
35. the most famous 【解析】“最著名的歌手之一”，用最高级。
III. 句型转换
36. one year older than 【解析】Tom 16岁，我15岁，所以他比我大一岁。
37. more interesting than 【解析】这本书有趣，那本无趣，所以这本比那本更有趣。
38. as large/big as 【解析】面积一样大，所以是“我的房间和他的房间一样大”。
39. fewer; than 【解析】我有5本，他有10本，所以我的书比他的少。books可数，用fewer。
40. as slowly as 【解析】她跑得不快，我跑得也不快，所以她跑得和我一样慢。修饰动词run用副词slowly。
41. less expensive/cheaper than 【解析】蓝的便宜，黄的贵，所以蓝的比黄的便宜。expensive比较级是more expensive，其反义是less expensive；cheap的比较级是cheaper。
42. taller; any other 【解析】“他是班里最高的” = “他比班里任何其他学生都高”。
43. not the same as 【解析】“与...不同” = “和...不一样”。
44. not as difficult as 【解析】“不如那个难” = “没有那个难”。
45. as expensive as 【解析】“我的电脑贵，他的也贵” = “我的电脑和他的电脑一样贵”。
IV. 完形填空
46. faster 【解析】兔子比乌龟“更快”，fast的比较级。
47. more quickly 【解析】修饰动词run要用副词quickly，比较级前加more。
48. slowest 【解析】“最慢的动物之一”，用最高级。
49. the easiest 【解析】“世界上最简单的事”，用最高级。
50. slowly 【解析】as...as...中间用副词原级，修饰动词walked。
51. closer 【解析】“更接近终点线”，close的比较级。
52. fast 【解析】as...as...中间用副词原级。
53. more important 【解析】“稳重有时比速度快更重要”，important是多音节词，比较级前加more。
54. the most well-known 【解析】“世界上最著名的寓言之一”，最高级。
55. more famous 【解析】“变得比以前更出名”，famous是多音节词，比较级前加more。
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