Unit4语法讲解及习题：不规则形容词比较级_最高级与 (not) as … as 结构 -2025-2026学年沪教版英语八年级上册

沪教（牛津）英语八上Unit4语法讲解及习题 不规则形容词比较级/最高级与 (not) as … as 结构 一、核心语法点 1. 不规则形容词比较级与最高级 教材重点：good, bad, far 的不规则变化 原级 比较级 最高级 例句 good better best The wheel is one of the best inventions in history.（轮子是历史上最好的发明之一。） bad worse worst Plastic bags are among the worst inventions.（塑料袋是最糟糕的发明之一。） far farther / further farthest / furthest Cars allow people to travel farther than before.（汽车让人们能比以前走得更远。） 2. (not) as … as 结构 含义：表示“和……（不）一样……”，用于同级比较。 结构： 肯定：A + be/动词 + as + 形容词/副词原级 + as + B 否定：A + be/动词 + not as/so + 形容词/副词原级 + as + B 用法要点： 中间必须用形容词/副词原级，不能用比较级。 修饰可数名词复数用 as many + 复数名词 + as；修饰不可数名词用 as much + 不可数名词 + as。 例句： Early computers were as big as a room.（早期的电脑和房间一样大。） A candle does not produce as much light as a light bulb.（蜡烛产生的光不如电灯泡多。） 二、语法习题 题型一：单项选择 1. The invention of the wheel made people’s lives ___________ than before. A. good B. better C. best D. the best 2. Plastic bags are one of the ___________ inventions in the world. A. bad B. worse C. worst D. the worst 3. Cars allow people to travel ___________ than they could on foot. A. far B. farther C. farthest D. the farthest 4. This new phone is not ___________ expensive ___________ the old one. A. as; as B. so; so C. as; so D. so; as 5. Which is ___________, the telephone or the light bulb? A. important B. more important C. most important D. the most important 6. The computer is almost ___________ important ___________ movable type. A. as; as B. so; as C. more; than D. most; than 7. Life would be much ___________ without these great inventions. A. bad B. worse C. worst D. the worst 8. The light bulb is an even ___________ invention than we thought. A. good B. better C. best D. the best 9. This book is not ___________ interesting ___________ that one. A. as; as B. so; so C. as; so D. so; as 10. The printing press is one of the ___________ inventions in history. A. useful B. more useful C. most useful D. the most useful 11. Airplanes can fly ___________ than birds. A. far B. farther C. farthest D. the farthest 12. The vaccine is ___________ good invention ___________ the telephone. A. as; as B. so; as C. more; than D. most; than 13. Which is ___________, the radio or the television? A. popular B. more popular C. most popular D. the most popular 14. The computer is ___________ than the first movable type. A. modern B. more modern C. most modern D. the most modern 15. This is the ___________ invention I have ever heard of. A. amazing B. more amazing C. most amazing D. the most amazing 题型二：用括号内单词的适当形式填空 1. The wheel is one of the ___________ (good) inventions in history. 2. Plastic bags make the world a ___________ (bad) place to live in. 3. Cars allow people to travel ___________ (far) than before. 4. Early computers were as ___________ (big) as a room. 5. The light bulb is an even ___________ (good) invention than we thought. 6. The computer is almost as ___________ (important) as movable type. 7. Life would be much ___________ (bad) without these great inventions. 8. This new app is not as ___________ (useful) as the old one. 9. The printing press is one of the ___________ (important) inventions. 10. Airplanes can fly ___________ (far) than any bird. 题型三：句型转换 1. The wheel is a good invention. The light bulb is a better invention.（合并为一句） The light bulb is ___________ ___________ the wheel. 2. Early computers were very big. They were like a room.（用as … as改写） Early computers were ___________ ___________ ___________ a room. 3. This invention is not useful. That invention is useful.（用not as … as改写） This invention is ___________ ___________ ___________ that one. 4. The computer is important. The movable type is important, too.（用as … as改写） The computer is ___________ ___________ ___________ the movable type. 5. Plastic bags are bad. They are among the worst inventions.（合并为一句） Plastic bags are among ___________ ___________ inventions. 题型四：根据中文提示完成句子 1. 轮子是历史上最好的发明之一。 The wheel is one of ___________ ___________ inventions in history. 2. 塑料袋让世界变成了一个更糟糕的地方。 Plastic bags make the world a ___________ place to live in. 3. 早期的电脑和房间一样大。 Early computers were ___________ ___________ ___________ a room. 4. 这个新发明和电话一样重要。 This new invention is ___________ ___________ ___________ the telephone. 5. 没有这些伟大的发明，生活会糟糕得多。 Life would be much ___________ without these great inventions. 三、答案与详细解析 题型一：单项选择 1. B 解析：than 是比较级的标志，good 的比较级是 better。 2. C 解析：one of the + 最高级，表示“最……之一”，bad 的最高级是 worst。 3. B 解析：than 是比较级的标志，far 的比较级是 farther。 4. A 解析：not as … as 表示“不如……”，中间用原级。 5. B 解析：两者比较用比较级，important 的比较级是 more important。 6. A 解析：as … as 表示“和……一样”，中间用原级。 7. B 解析：much 修饰比较级，bad 的比较级是 worse。 8. B 解析：even 修饰比较级，good 的比较级是 better。 9. A 解析：not as … as 表示“不如……”，中间用原级。 10. C 解析：one of the + 最高级，表示“最……之一”，useful 的最高级是 most useful。 11. B 解析：than 是比较级的标志，far 的比较级是 farther。 12. A 解析：as … as 表示“和……一样”，中间用原级。 13. B 解析：两者比较用比较级，popular 的比较级是 more popular。 14. B 解析：than 是比较级的标志，modern 的比较级是 more modern。 15. C 解析：I have ever heard of 表示范围，用最高级，amazing 的最高级是 most amazing。 题型二：用括号内单词的适当形式填空 1. best 2. worse 3. farther 4. big 5. better 6. important 7. worse 8. useful 9. most important 10. farther 题型三：句型转换 1. better than 2. as big as 3. not as useful as 4. as important as 5. the worst 题型四：根据中文提示完成句子 1. the best 2. worse 3. as big as 4. as important as 5. worse ( 1 ) 学科网（北京）股份有限公司 $