Unit 6 语法专练 2025-2026学年外研版英语七年级下册

外研版7下第六单元语法专练 as...as 结构 第一部分:as...as 核心知识点梳理 一、as...as 的基本用法 as + 形容词/副词原级 + as 表示"和……一样……",用于两者之间的同等比较。 1. 肯定形式:as + 原级 + as 表示两者在某方面程度相同。 例如: Tom is as tall as Mike. (汤姆和迈克一样高) She runs as fast as her brother. (她跑得和她哥哥一样快) This book is as interesting as that one. (这本书和那本书一样有趣) He speaks English as fluently as a native speaker. (他英语说得和母语者一样流利) I love you as much as I love my life. (我爱你如同爱我的生命) 2. 否定形式:not as/so + 原级 + as 表示"不如……"、"和……不一样……",即前者在某方面不及后者。 例如: Tom is not as tall as Mike. (汤姆不如迈克高) She does not run so fast as her brother. (她跑得不如她哥哥快) This book is not as interesting as that one. (这本书不如那本书有趣) He is not so smart as his sister. (他不如他姐姐聪明) 注意:否定形式中,可以用 not as...as 或 not so...as,后者更正式一些,口语中常用前者。 二、as...as 中间可以接什么? 1. 接形容词原级 这是最常见的用法,形容词用来描述人或事物的特征。 例如: This problem is as difficult as that one. (这个问题和那个一样难) She is as beautiful as her mother. (她和她妈妈一样漂亮) The weather today is as cold as yesterday. (今天和昨天一样冷) He is as tall as his father now. (他现在和他爸爸一样高了) 2. 接副词原级 副词用来修饰动词,表示动作的方式或程度。 例如: He speaks English as fluently as a native speaker. (他英语说得和母语者一样流利) Please come as quickly as you can. (请尽快来) She dances as gracefully as a swan. (她跳舞像天鹅一样优雅) He runs as fast as a deer. (他跑得像鹿一样快) 3. 接"形容词 + 名词"结构 这是一种特殊结构:as + 形容词 + a/an + 名词 + as 例如: She is as kind a girl as her sister. (她和姐姐一样是个善良的女孩) This is as good a book as any. (这本书和任何书一样好) He is as honest a man as I know. (他是我认识的最诚实的人之一) It was as pleasant a day as I have ever spent. (那是我度过的最愉快的一天之一) 4. 接数量词 表示数量上的相等。 as much + 不可数名词 + as(用于不可数名词) 例如: I have as much homework as you. (我的作业和你一样多) He earns as much money as his father. (他赚的钱和他爸爸一样多) There is as much water in this bottle as in that one. (这个瓶子里和那个瓶子里水一样多) as many + 可数名词复数 + as(用于可数名词) 例如: He has as many friends as I do. (他的朋友和我一样多) She bought as many books as her sister. (她买的书和她姐姐一样多) There are as many girls in Class 1 as in Class 2. (一班和二班的女生一样多) 5. 接数词 表示数量、尺寸、年龄等的相等。 例如: The rope is as long as 20 meters. (这根绳子长达20米) The temperature can reach as high as 40 degrees. (温度可高达40度) He is as old as 90 years. (他高达90岁) The crowd was as large as 50,000. ( crowd 多达5万人) 三、as...as 的常见固定搭配 as soon as possible 尽快 例如:Please come back as soon as possible. (请尽快回来) as far as I know 据我所知 例如:As far as I know, he is honest. (据我所知,他是诚实的) as well as 和……一样好;也 例如:She sings as well as dances. (她唱歌和跳舞一样好;她既会唱歌也会跳舞) as long as 只要;和……一样长 例如:You can stay as long as you like. (你想待多久就待多久) This river is as long as that one. (这条河和那条一样长) as much as 多达;和……一样多 例如:I love you as much as you love me. (我爱你像你爱我一样多) as early as 早在 例如:As early as 1900, he had predicted this. (早在1900年,他就预测到了这一点) as busy as a bee 像蜜蜂一样忙碌 例如:She is always as busy as a bee. (她总是忙忙碌碌的) as light as a feather 轻如羽毛 例如:The box is as light as a feather. (这个盒子轻如羽毛) as quiet as a mouse 安静如鼠 例如:Be as quiet as a mouse. The baby is sleeping. (要非常安静,宝宝在睡觉) as strong as an ox 壮如牛 例如:My grandfather is 80, but he is as strong as an ox. (我爷爷80岁了,但壮得像头牛) as easy as ABC 非常简单 例如:This job is as easy as ABC. (这份工作非常简单) as clear as crystal 清澈如水晶;非常清楚 例如:The water in the lake is as clear as crystal. (湖水清澈如水晶) 四、as...as 结构的否定形式 1. not as...as 与 not so...as 的区别 两者都表示"不如……",但 not so...as 更正式,not as...as 在口语中更常见。 例如: He is not as tall as his brother. (口语常用) He is not so tall as his brother. (书面语更常见) 2. 可以用 less...than 替换 not as...as 可以用 less + 原级 + than 替换,但 less 通常用于多音节词。 例如: This book is not as interesting as that one. = This book is less interesting than that one. She is not as beautiful as her sister. = She is less beautiful than her sister. 3. 注意:否定形式不能与比较级连用 错误:He is not as taller as his brother. 正确:He is not as tall as his brother. 五、as...as 与比较级的转换 1. not as...as 可以转换为比较级 A + be + not as + 原级 + as + B = B + be + 比较级 + than + A 例如: Tom is not as tall as Mike. = Mike is taller than Tom. This book is not as interesting as that one. = That book is more interesting than this one. She doesn't run as fast as her sister. = Her sister runs faster than her. 2. as...as 可以转换为最高级(在特定语境中) No one in his class is as tall as him. = He is the tallest in his class. No other student is as smart as her. = She is the smartest student. 第二部分:专项练习题 一、单项选择(共10题) 1. Tom is _ his brother. A. as tall than B. as tall as C. so tall as 2. She doesn't sing _ her sister. A. as well as B. as better as C. as good as 3. This problem is _ that one. A. as difficult than B. as difficult as C. so difficult as 4. He runs _ I do. A. as fast as B. as faster as C. so fast than 5. I have _ homework _ you. A. as many, as B. as much, as C. so much, than 6. She is _ her mother. A. as beautiful as B. as beautiful than C. so beautiful as 7. He is not _ his brother. A. as smarter as B. as smart as C. so smart than 8. Please come back _. A. as soon as you B. as soon as possible C. so soon as you can 9. She has _ books _ I do. A. as many, as B. as much, as C. so many, than 10. This is _ book I've ever read. A. as good as B. as a good as C. as good a 二、用 as...as 完成句子(共10题) 11. Tom is 1.8 meters tall. Mike is also 1.8 meters tall. Tom is _ _ _ Mike. 12. This book costs 20 yuan. That book costs 20 yuan, too. This book is _ _ _ that one. 13. She speaks English fluently. Her teacher speaks English fluently. She speaks English _ _ _ her teacher. 14. I have 5 apples. He has 5 apples, too. I have _ _ apples _ he does. 15. He is not very smart. His brother is smarter. He is _ _ _ _ his brother. 16. This question is easy. That question is also easy. This question is _ _ _ that one. 17. She runs fast. Her sister runs fast, too. She runs _ _ _ her sister. 18. My room is 20 square meters. Your room is 20 square meters. My room is _ _ _ yours. 19. He doesn't work hard. His friend works harder. He doesn't work _ _ _ his friend. 20. The weather today is cold. Yesterday was cold, too. The weather today is _ _ _ yesterday. 三、用所给词的适当形式填空(共8题) 21. He is _ (tall) as his father now. 22. She doesn't dance _ (graceful) as her sister. 23. This movie is _ (interesting) as that one. 24. Please finish the work _ (quick) as possible. 25. I have _ (many) books as you. 26. He is not _ (smart) as his brother. 27. She sings _ (well) as a professional singer. 28. There are _ (much) people here as yesterday. 四、改写句子,保持意思不变(共8题) 29. Mike is taller than Tom. Tom is _ _ _ _ Mike. 30. This book is more interesting than that one. That book is _ _ _ _ this one. 31. She runs faster than her sister. Her sister _ _ _ _ her. 32. He is the tallest in his class. No one in his class _ _ _ _ him. 33. This problem is less difficult than that one. This problem is _ _ _ _ that one. 34. She is more beautiful than her mother. Her mother is _ _ _ _ her. 35. I have more money than you. You _ _ _ _ _ I do. 36. He speaks English better than me. I _ _ English _ _ _ him. 五、改错题(每题只有一处错误)(共8题) 37. He is as taller as his brother. _ 38. She doesn't sing as better as her sister. _ 39. This book is as interesting than that one. _ 40. Please come as quick as possible. _ 41. I have as much books as you. _ 42. She is as a good student as her brother. _ 43. He runs as faster as I do. _ 44. The weather today is not so colder as yesterday. _ 六、用 as...as 结构翻译下列句子(共10题) 45. 他和他的父亲一样高。 _ 46. 她不如她姐姐漂亮。 _ 47. 这本书和那本书一样有趣。 _ 48. 请尽快给我回信。 _ 49. 我的房间和你的一样大。 _ 50. 他英语说得和母语者一样流利。 _ 51. 我没有你那么多书。 _ 52. 据我所知,他是个诚实的人。 _ 53. 只要你喜欢,你可以待多久都行。 _ 54. 她和她姐姐一样是个善良的女孩。 _ 七、用 as...as 完成下列句子(根据汉语提示)(共6题) 55. This problem is _(和那个一样难). 56. She _(跑得和她哥哥一样快). 57. I don't have _(和你一样多的钱). 58. Please come back _(尽快). 59. He is _(和他爸爸一样高的男孩). 60. There are _(这里和那里一样多的学生). 八、用 as...as 或比较级填空(共6题) 61. Tom is 1.8m. Mike is 1.8m. So Tom is _ _ _ Mike. 62. Tom is 1.8m. Mike is 1.7m. So Tom is _ than Mike. 63. This book is very interesting. That book is not interesting. This book is _ _ than that one. That book is _ _ _ _ this one. 64. She runs fast. Her sister runs faster. Her sister runs _ than her. She doesn't run _ _ _ her sister. 65. I have 10 books. He has 10 books, too. I have _ _ books _ he does. 66. This box weighs 5kg. That box weighs 10kg. This box is _ _ than that one. That box is _ _ as this one. 第三部分:参考答案 一、单项选择 1. B 2. A 3. B 4. A 5. B 6. A 7. B 8. B 9. A 10. C 二、用 as...as 完成句子 11. as tall as 12. as expensive as / as cheap as 13. as fluently as 14. as many, as 15. not as/so smart as 16. as easy as 17. as fast as 18. as big as / as large as 19. as hard as 20. as cold as 三、用所给词的适当形式填空 21. as tall 22. as graceful 23. as interesting 24. as quickly 25. as many 26. as smart 27. as well 28. as many 四、改写句子,保持意思不变 29. not as/so tall as 30. not as/so interesting as 31. doesn't run as/so fast as 32. is as/so tall as 33. not as/so difficult as 34. not as/so beautiful as 35. don't have as much money as 36. don't speak, as well as 五、改错题 37. He is as tall as his brother. (taller tall) 38. She doesn't sing as well as her sister. (better well) 39. This book is as interesting as that one. (than as) 40. Please come as quickly as possible. (quick quickly) 41. I have as many books as you. (much many) 42. She is as good a student as her brother. (去掉a前的as) 43. He runs as fast as I do. (faster fast) 44. The weather today is not as/so cold as yesterday. (colder cold) 六、用 as...as 结构翻译下列句子 45. He is as tall as his father. 46. She is not as/so beautiful as her sister. 47. This book is as interesting as that one. 48. Please write back to me as soon as possible. 49. My room is as big/large as yours. 50. He speaks English as fluently as a native speaker. 51. I don't have as many books as you. 52. As far as I know, he is an honest man. 53. You can stay as long as you like. 54. She is as kind a girl as her sister. 七、用 as...as 完成下列句子(根据汉语提示) 55. as difficult as that one 56. runs as fast as her brother 57. as much money as you 58. as soon as possible 59. as tall a boy as his father 60. as many students here as there 八、用 as...as 或比较级填空 61. as tall as 62. taller 63. more interesting, not as/so interesting as 64. faster, as/so fast as 65. as many, as 66. lighter, twice as heavy 学科网(北京)股份有限公司 $