Unit 3 Same or Different 形容词、副词比较级与as...as结构课件2026-2027学年人教版八年级英语上册

该初中英语课件聚焦八年级上册Unit 3比较级与同级比较语法点，以“朋友：有相同，也有不同”为话题导入，通过Mia和Lucy的对比例句引出比较级+than与as...as结构，再系统讲解词形规则、结构选择及易错点，搭建从具体语境到语法规则再到应用的学习支架。 其亮点在于融合语言能力与思维品质培养，通过“Two Good Friends”“How I Changed”等真实语境任务提升语言表达，易错突破环节（如纠正“more taller”“very easier”等错误）培养分析判断能力，核心规则图谱和分层练习助力学习能力发展。学生能在话题中掌握语法，教师可直接使用系统资源提升教学效率。

Unit 3 Same or Different? 比较级 + as...as 同级比较 八年级英语上册 比较级 同级比较 朋友语境 SAME OR DIFFERENT? 01 朋友：有相同，也有不同 Different Mia is quieter than Lucy. Same Mia is as serious about schoolwork as Lucy. 两个句子分别怎样表达“更……”与“一样……”？ 比较级 + than as + 原级 + as UNIT 3 SAME OR DIFFERENT? 02 这一课，我们要学会 1 写对词形 规则变化与不规则比较级 2 选对结构 than 比较与 as...as 同级比较 3 辨清易错 程度修饰、词性与比较对象 4 回到语境 比较朋友，描述自己的变化 UNIT 3 SAME OR DIFFERENT? 03 比较级怎样构成？先看词形 一般单音节和部分双音节 直接加 -er 以不发音的 e 结尾 加 -r 重读闭音节：末尾单辅音 前为单元音字母，双写末尾辅音 + -er 辅音字母 + y 结尾 变 y 为 i，再加 -er tall taller large larger big bigger easy easier 双写有条件，不是见到“辅音结尾”就双写。 UNIT 3 SAME OR DIFFERENT? 04 不直接加 -er：用 more more + 形容词 / 副词原形 outgoing difficult interesting clearly more outgoing more difficult more interesting more clearly 多音节词常用 more；-er 和 more 不重复使用。 UNIT 3 SAME OR DIFFERENT? 05 不规则变化：整体记住 good / well bad / badly many / much little far better worse more less farther / further better 已经是比较级，不能再加 more。 UNIT 3 SAME OR DIFFERENT? 06 两个对象，同一方面 A + 比较级 + than + B Emma is quieter than Ella. Tom runs faster than Jack. Emma 与 Ella 比较：谁更安静？ Tom 与 Jack 比较：谁跑得更快？ UNIT 3 SAME OR DIFFERENT? 07 选词之前，先看它修饰什么 描述人的特点 描述动作的方式 Ella is more outgoing than her twin sister. She sings better than before. is 后：形容词 outgoing → more outgoing 修饰 sings：副词 well → better 先判断词性，再选择正确的比较级。 UNIT 3 SAME OR DIFFERENT? 08 “更……”的程度有多大？ 程度修饰词 + 比较级 much / a lot a little even 大得多 much bigger 高一点 a little taller 甚至更…… 强调进一步的程度 very tall very taller very 不能直接修饰比较级。 UNIT 3 SAME OR DIFFERENT? 09 程度相同：as...as as + 形容词 / 副词原级 + as I'm as hard-working as you. Linda works as hard as Amy. 形容词原级 副词原级 两个 as 之间用原级，不用比较级。 UNIT 3 SAME OR DIFFERENT? 10 表达“不如”：原级不变 not as / so + 原级 + as This road is not as busy as that one. This test is easier than that one. 这条路不如那条繁忙。 That test is not as easy as this one. 保持原意：交换比较对象，easier 还原为 easy。 UNIT 3 SAME OR DIFFERENT? 11 核心规则图谱 规则构成 不规则变化 不同程度 程度修饰 同级比较 -er / more + 形容词或副词 better / worse / more / less / farther 比较级 + than；比较对象要对等 much / a lot / even / a little + 比较级 as + 原级 + as not as / so + 原级 + as：不如…… UNIT 3 SAME OR DIFFERENT? 12 基础过关 单项选择 ( ) 1. This year's school festival is ________ than last year's. A. large B. larger C. largest D. more large B 考点：比较级 + than。 解析：比较今年与去年的校园节日，large → larger。 UNIT 3 SAME OR DIFFERENT? 13 基础过关 单项选择 ( ) 2. Ella is ________ outgoing than her twin sister. A. more B. most C. much D. many A 考点：more + 多音节形容词。 解析：outgoing 的比较级为 more outgoing，选 more。 UNIT 3 SAME OR DIFFERENT? 14 基础过关 单项选择 ( ) 3. Tom runs ________ than I do. A. fast B. faster C. fastest D. more fast B 考点：副词也有比较级。 解析：fast 修饰 runs；有 than，使用比较级 faster。 UNIT 3 SAME OR DIFFERENT? 15 基础过关 单项选择 ( ) 4. My new school is ________ bigger than my old one. A. very B. much C. most D. too B 考点：much 可以修饰比较级。 解析：much bigger 表示“大得多”，very 不能直接修饰 bigger。 UNIT 3 SAME OR DIFFERENT? 16 基础过关 单项选择 ( ) 5. Lisa is as ________ as her best friend. A. careful B. more careful C. carefully D. most careful A 考点：as...as 中间用原级。 解析：is 后用形容词，且表示同等程度，因此选 careful。 UNIT 3 SAME OR DIFFERENT? 17 基础过关 单项选择 ( ) 6. The blue bag is not as ________ as the black one. A. expensive B. more expensive C. most expensive D. expensively A 考点：not as + 原级 + as。 解析：蓝包不如黑包贵，not as...as 中间仍用 expensive。 UNIT 3 SAME OR DIFFERENT? 18 基础过关 单项选择 ( ) 7. After more practice, Peter plays the guitar ________ than before. A. well B. better C. best D. more well B 考点：well → better。 解析：与以前相比，吉他弹得更好，用副词比较级 better。 UNIT 3 SAME OR DIFFERENT? 19 基础过关 单项选择 ( ) 8. Which is correct? A. more easier B. much easier C. very easier D. easier much B 考点：much 放在比较级之前。 解析：easy → easier；much easier 正确，不重复加 more。 UNIT 3 SAME OR DIFFERENT? 20 基础过关 单项选择 ( ) 9. My brother is a little ________ than me. A. tall B. taller C. tallest D. more tall B 考点：a little + 比较级。 解析：a little taller 表示“高一点”，tall 的比较级为 taller。 UNIT 3 SAME OR DIFFERENT? 21 基础过关 单项选择 ( ) 10. Diana reads ________ books than I do every month. A. many B. much C. more D. most C 考点：many → more。 解析：比较每月读书的数量，用 more books than...。 UNIT 3 SAME OR DIFFERENT? 22 基础过关 单项选择 ( ) 11. This task is ________ than the last one, so I need more time. A. difficult B. more difficult C. most difficult D. difficulter B 考点：difficult → more difficult。 解析：difficult 是多音节形容词，比较级前加 more。 UNIT 3 SAME OR DIFFERENT? 23 基础过关 单项选择 ( ) 12. Sam is not as ________ as his sister, but he is more patient. A. quietly B. quieter C. quiet D. quietest C 考点：词性与同级比较同时判断。 解析：is 后需形容词，as...as 中间需原级，因此选 quiet。 UNIT 3 SAME OR DIFFERENT? 24 语法填空 用括号内词的正确形式或适当词填空。 13. My cousin is (young) than me. 14. This book is much (interesting) than that one. younger 考点：young 的规则比较级。 解析：由 than 判断两者比较，young + -er → younger。 more interesting 考点：much + more + 多音节形容词。 解析：interesting → more interesting；much 修饰整个比较级。 UNIT 3 SAME OR DIFFERENT? 25 语法填空 用括号内词的正确形式或适当词填空。 15. Anna studies (hard) than before. 16. My room is as (clean) as yours. harder 考点：副词 hard 的比较级。 解析：修饰 studies，并与以前比较，hard → harder。 clean 考点：as + 原级 + as。 解析：两个房间一样干净，保留形容词原级 clean。 UNIT 3 SAME OR DIFFERENT? 26 语法填空 用括号内词的正确形式或适当词填空。 17. Today I feel (good) than yesterday. 18. The second question is a little (easy) than the first. better 考点：good → better。 解析：与昨天比较，good 的比较级是不规则形式 better。 easier 考点：辅音字母 + y，变 y 为 i 再加 -er。 解析：easy → easier；a little 表示“容易一点”。 UNIT 3 SAME OR DIFFERENT? 27 语法填空 用括号内词的正确形式或适当词填空。 19. My sister speaks English (clearly) than I do. 20. This road is not as (wide) as the main road. more clearly 考点：clearly → more clearly。 解析：副词 clearly 修饰 speaks；比较时使用 more clearly。 wide 考点：not as...as 中间用原级。 解析：这条路不如主路宽，保留 wide，不用 wider。 UNIT 3 SAME OR DIFFERENT? 28 句型转换 21. Jack is 1.70 m. Ben is 1.75 m. 用 taller than 合并。 Ben is taller than Jack. 考点：比较级 + than。 解析：Ben 比 Jack 高；较高者作主语，用 taller than 连接两者。 UNIT 3 SAME OR DIFFERENT? 29 句型转换 22. Linda works hard. Amy works equally hard. 用 as...as 合并。 Linda works as hard as Amy. 考点：as + 副词原级 + as。 解析：equally hard 表示同等努力，用 as hard as，不用 harder。 UNIT 3 SAME OR DIFFERENT? 30 句型转换 23. My old phone is cheap. My new phone is more expensive. 改写为比较句。 My new phone is more expensive than my old phone. 考点：明确两个比较对象。 解析：新手机更贵，用 more expensive than 比较新、旧手机。 UNIT 3 SAME OR DIFFERENT? 31 句型转换 24. This test is easier than that one. 用 not as...as 改写。 That test is not as easy as this one. 考点：比较级与 not as...as 的转换。 解析：交换 this / that 的位置，easier 还原为 easy，保持原意。 UNIT 3 SAME OR DIFFERENT? 32 句型转换 25. I sing well. My sister sings better. 合并句子。 My sister sings better than I do. 考点：well → better；than 后对象对等。 解析：用 better than 表示唱得更好；I do 避免重复 I sing。 UNIT 3 SAME OR DIFFERENT? 33 易错突破 判断句子是否正确；如有错误，请改正。 1. My sister is more taller than me. taller My sister is taller than me. 考点：比较级标记不叠加。 解析：taller 已经是比较级，前面不能再加 more。 UNIT 3 SAME OR DIFFERENT? 34 易错突破 判断句子是否正确；如有错误，请改正。 2. This task is very easier than that one. much / a little This task is much / a little easier than that one. 考点：very 不直接修饰比较级。 解析：much easier 为“容易得多”；a little easier 为“容易一点”。 UNIT 3 SAME OR DIFFERENT? 35 易错突破 判断句子是否正确；如有错误，请改正。 3. Tom runs as faster as Jack. fast Tom runs as fast as Jack. 考点：as...as 中间用原级。 解析：表示两人跑得一样快，把 faster 改为副词原级 fast。 UNIT 3 SAME OR DIFFERENT? 36 易错突破 判断句子是否正确；如有错误，请改正。 4. The weather today is badder than yesterday. worse The weather today is worse than it was yesterday. 考点：bad 的比较级是 worse。 解析：bad 是不规则变化，不能写 badder。 补全 it was，更明确地比较今天与昨天的天气。 UNIT 3 SAME OR DIFFERENT? 37 易错突破 判断句子是否正确；如有错误，请改正。 5. She is more carefully than her brother. careful She is more careful than her brother. 考点：系动词 is 后用形容词。 解析：描述人的特点，用 careful；carefully 是副词。 UNIT 3 SAME OR DIFFERENT? 38 Two Good Friends 综合应用 1 · 上 Mia and Lucy are good friends, but they are quite different. Mia is 1 (quiet) than Lucy, while Lucy is 2 outgoing. quieter 1 考点：quiet → quieter。 解析：由 than Lucy 判断比较，表示 Mia 更安静。 more 2 考点：outgoing 的比较级前加 more。 解析：承接两位朋友的对比，Lucy 更外向，用 more outgoing。 UNIT 3 SAME OR DIFFERENT? 39 Two Good Friends 综合应用 1 · 中 Lucy runs 3 (fast) than Mia, but Mia reads more books. They are both hard-working. In fact, Mia is as 4 (serious) about schoolwork as Lucy. faster 3 考点：fast → faster。 解析：比较跑步速度，用副词 fast 的比较级 faster。 serious 4 考点：as...as 中间用原级。 解析：两人对学业同样认真，用 serious，不用 more serious。 UNIT 3 SAME OR DIFFERENT? 40 Two Good Friends 综合应用 1 · 下 Their differences make their friendship 5 (interesting) than before because they learn from each other. more interesting 5 考点：interesting → more interesting。 解析：than before 表示与过去相比；interesting 前加 more。 UNIT 3 SAME OR DIFFERENT? 41 How I Changed 综合应用 2 · 上 Two years ago, I was shy. Now I am 1 (confident) than before. I also get up 2 (early) and exercise more. more confident 1 考点：confident → more confident。 解析：与以前比较，confident 前加 more。 earlier 2 考点：early → earlier。 解析：结合今昔变化语境，参考答案为 earlier。 本句未明示比较对象，填 early 表示“早起”也符合语法。 UNIT 3 SAME OR DIFFERENT? 42 How I Changed 综合应用 2 · 中 My schoolbag is not as 3 (heavy) as it used to be because I organise my books better. heavy 3 考点：not as + 原级 + as。 解析：书包不如以前重，not as...as 中间用形容词原级 heavy。 不能看到今昔对比，就把所有形容词都改成比较级。 UNIT 3 SAME OR DIFFERENT? 43 How I Changed 综合应用 2 · 下 I can speak English 4 (well) now, and I am a little 5 (patient) with difficult tasks. better 4 考点：well → better。 解析：结合今昔变化语境，参考答案为 better。 本句也可填 well 表示“说得好”，不能判作语法错误。 more patient 5 考点：a little + 比较级。 解析：patient 的比较级为 more patient；a little 表示“一点”。 UNIT 3 SAME OR DIFFERENT? 44 回看规则，再看自己的进步 36–40 稳定掌握 30–35 回看易错点 再做一遍 ＜30 先重学规则图谱 再做基础过关 比较级 + than as + 原级 + as not as / so + 原级 + as 相同与不同，都能说清楚。 UNIT 3 SAME OR DIFFERENT? 45 $