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知识点深化 · 语法 · 比较与程度 · 小白第一课

as...as / too / enough：评价事物的三把精准尺子

KET 你学过比较级（bigger than）。PET 再补三把尺子：as...as（和……一样）、too...to（太……以至于不能）、...enough（足够……）。评价一部电影、一张票、一个人，全靠它们说精准。

① 这一课怎么学（小白 4 步法）

总用时约 70 分钟，拆成 4 步，一步都别跳：

1读（20 分钟）
先看第 ②③ 部分：这个知识点是什么、怎么变形、和你学过的旧知识有什么区别。别背，先看懂。
2练（20 分钟）
做第 ⑥①⑨ 部分的题目，错了就回头看对应规则，把错因写在错题本上。
3背（15 分钟）
背第 ⑧ 部分背诵卡：10 个必备句型 + PET 口语模板，背到脱口而出。
4说（15 分钟）
做第 ΣA; 部分口语练习，大声读出来、录下来，自己回听哪里卡壳。
第一课的小目标学完这一课，你要能做到三件事：① 用 as...as 说两者一样；② 用 too...to 说"太……做不了"；③ 分清 enough 放形容词后、名词前。

② 一图看懂全课（思维导图）

这张图就是本课的完整地图：程度三把尺 总共 5 大块，先有地图再走路，学起来不迷路。

程度三把尺
完整体系
→
as...as
as+原级+as
not as...as
一样/不如
→
too...to
too+形+to do
太…不能
含否定
→
enough
形+enough
enough+名词
足够
→
位置规则
enough 形后
enough 名前
too 形前
→
PET 考点
评价作品
Part 5 完形
口语推荐

读法：从根出发，5 大块顺序走。每块下面是小节点，全记住你这一课就通关了。

③ 先认识它：这三把尺子量什么

一句话：as...as 量"一样"，too 量"过头"，enough 量"够不够"。

Unit 3 评价电影：It is as exciting as a film.（和电影一样刺激）；The ticket is too expensive to buy.（太贵买不起）；Is it cheap enough?（够便宜吗）。

评价事物三把尺 as...as 一样 too...to 太…不能 enough 足够 够不够、过不过、一不一样 评价电影/票/人的精准表达
为什么口语爱用推荐或拒绝一个活动时，"这部电影和原著一样好看""票太贵买不起""房间够大吗"——都是 Part 3 讨论的高频句。
too...to 本身已含否定It is too expensive to buy. = 太贵了，买不起。后面不要再加 not：✗ too expensive not to buy。
从 KET 到 PET 的进阶提醒KET（A2）要求"能认出、能填对"；PET（B1）要求"会用、会说、会写"。同一个知识点，A2 只考单选，B1 还要你在 email 和口语里主动输出。所以这一课别停留在"看懂"，一定要把第 ⑧ΣA; 部分的句子大声说出来、写一遍。评分也更严：语法错一个、漏一个要点，写作分就往下掉一档。

④ 三种结构公式表

结构与公式

结构公式例句
as...as（同级）as + 原级形容词 + asIt is as exciting as a film.
not as...as（不如）not as + 原级 + asThe film is not as good as the book.
too...to（太…不能）too + 形容词 + to doThe ticket is too expensive to buy.
形容词 + enough形容词 + enough (+ to do)The ticket is cheap enough.
enough + 名词enough + 名词I don't have enough money.
enough 的方向别反① 放形容词后：cheap enough（不是 enough cheap）。② 放名词前：enough money（不是 money enough）。③ too 永远放形容词前：too expensive。

as...as 中间一定用原级

错对
as more exciting asas exciting as（原级）
as bigger asas big as
too expensively to buytoo expensive to buy（用形容词，不是副词）

⑤ 五类用法场景（配图记忆）

场景例句记忆点
1 说两者一样This room is as big as ours.同级比较用原级
2 说不如The film is not as good as the book.not as...as
3 说太贵/太挤The café was too crowded to get a seat.too + 形 + to do
4 说够便宜/够大The flat is big enough for three people.形 + enough
5 说钱够不够I haven't got enough money for the tickets.enough + 名词
too 与 very 的区别very expensive = 很贵（中性）；too expensive = 太贵了（过头、买不了）。too 带"过头、有负面影响"的意思。
as big as
too expensiveto buy
cheap enough够便宜
enough money钱够

⑥ 中国学生 5 大高频错误诊断

错误 1：as...as 中间用比较级
✗ as more interesting as → ✓ as interesting as
中间永远原级，不加 more/-er。
错误 2：enough 放形容词前
✗ enough cheap → ✓ cheap enough
形后名前：cheap enough / enough money。
错误 3：too...to 后再加 not
✗ too expensive not to buy → ✓ too expensive to buy
too...to 本身就表否定含义。
错误 4：too 后用副词
✗ too loudly to sleep → ✓ too loud to sleep
too 后接形容词修饰名词/状态。
错误 5：not as...as 意思搞反
✗ The book is not as good as the film = 书和电影一样好。→ ✓ = 书不如电影好。
not as...as = 前者不如后者。

⑦ PET 考点与真题演练

题型怎么考应对
Reading Part 5 完形挖 as...as / too...to / enough 空看空格前后：形后还是名前
Reading Part 2 匹配评价场所：够大吗/太贵吗抓 enough / too 信号
Writing Part 6 email推荐或拒绝一个地方The film is as good as... / too expensive to...
Listening Part 3听两人讨论价格、大小抓 enough / too
Speaking Part 3选活动：太贵/够近吗It's too far / cheap enough

真题风格演练（PET 出题方式）

真题风格 · PET Reading Part 5 完形The new cinema is (1) ______ modern ______ the old one, but the tickets are (2) ______ expensive ______ buy. I don't have (3) ______ money to go every week.
(1) as...as（一样现代）；(2) too...to（太贵买不起）；(3) enough（enough money 名前）。
真题风格 · PET Speaking Part 3搭档说："The café is too far." 你用 enough 回应距离问题。
参考：Yes, it's too far to walk. Is there a café close enough to the station?（too far to walk + close enough）
真题风格 · PET Writing Part 6 email写 2 句评价一部电影：和书比怎么样、票价如何。
参考：The film is as exciting as the book, but the cinema tickets are too expensive to buy every week. It's cheap enough for a special night out.
考场提分提醒完形里看到 enough，先判断它前面是形容词还是名词：形容词后（cheap enough）、名词前（enough time）。看到 too...to 别加 not。as...as 中间一定原级，这三点记住就不会丢分。

PET（B1）四部分速查

部分时间题量与本课关系
Reading & Writing1 小时 45 分阅读 5 部分 + 写作 2 题本课语法/词汇是 Part 5 完形与 Part 6 email 的得分点
Listening约 12 分钟4 部分，听两遍抓本课信号词即可定位答案
Speaking10-12 分钟4 部分（含搭档）本课背诵句直接用于 Part 2 独白与 Part 3 讨论

写作 Part 6 email 要求约 100 词、必须覆盖题目三个要点；口语 Part 2 个人独白约 1-2 分钟，Part 3 要和搭档互动（附和、提问、商量），不能各说各话。

答题通用三步法第一步：先读题干/题目要求，圈出关键词；第二步：在文中/听力里定位信号词；第三步：选定答案后回读一句检查是否通顺。完形尤其注意上下文时态与单复数。

⑧ 背诵内容：10 个必备句型 + 口语模板

每天背 3-4 句，3 天背完。背的时候大声读，边读边想意思，别死记单词。

1. This film is as exciting as the book. 这部电影和书一样刺激。
2. The film is not as good as the book. 电影不如书好。
3. The ticket is too expensive to buy. 票太贵了，买不起。
4. Is the room big enough? 房间够大吗？
5. I don't have enough money. 我的钱不够。
6. The café was too crowded to get a seat. 咖啡馆太挤，没座。
7. This jacket is as warm as that one. 这件夹克和那件一样暖。
8. He's old enough to drive. 他到开车的年龄了。
9. It's too hot to go out. 太热了，出不去。
10. We haven't got enough time. 我们时间不够。
评价并推荐一个活动（PET Speaking Part 3 协作讨论直接套）
The new film is as exciting as the last one, and the cinema is close enough to walk to. But the tickets are too expensive to buy for everyone. I think we should choose the cheaper one — it's not as good as the new cinema, but it's cheap enough for all of us.

ΣA; 口语练习：说出来才算会

PET Writing Part 1 email 万能开头/结尾（约 100 词三段式）开头：Hi Tom, thanks for your email — it was great to hear from you! 中间：题目给的三个要点，每个一句，用上本课语法/词汇。结尾：Write soon and tell me your news! Best wishes, Leo. 记住：三个要点缺一不可，否则扣分。
练习 A · 跟读（2 分钟）
跟着上面背诵卡读 3 遍：第一遍慢读看发音，第二遍正常速度，第三遍不看文字凭记忆说。
PET Speaking Part 2 个人独白万能开头/结尾（1-2 分钟）开头：I'd like to talk about... / The thing I want to tell you about is...；中间用 First of all... Also... But I think... 串两三个点；结尾：So, that's why I like it. Thank you for listening. 记住：别只说一句，要给例子、给理由，撑满 1 分钟。
练习 B · 自我对话（3 分钟）
Q: Is this book as interesting as that one?　→　A: Yes, it's as interesting as that one.
Q: Is the ticket cheap enough?　→　A: No, it's too expensive to buy.
Q: Do you have enough time?　→　A: No, I haven't got enough time.
练习 C · 挑战（2 分钟）
不用稿子，说 3 句评价一部你看过的电影：和书/前作比、票价、值不值得。
口语评分自查说完后对 3 条：① as...as 中间用原级了吗？② enough 位置对吗（形后名前）？③ too...to 后有没有多加 not？

考场示范对话（读熟就能套）

Examiner: Shall we go to the new cinema?
You: The tickets are too expensive to buy every week. But the film is as exciting as the book.
Examiner: Is it close enough to walk?
You: Yes, it's close enough. We haven't got enough time for the bus.
考官：我们去新电影院吗？/ 票太贵，不能每周都买。但电影和书一样刺激。/ 走路够近吗？/ 够近。我们没时间坐公交。

ΣB; 分层练习 18 题（含答案与解析）

建议顺序：先闭卷做基础 1-6，再做进阶 7-12，最后挑战 13-18。每题做错都要在错题本上写一句错因——是规则没记住，还是粗心？

基础 1填空：This box is ___ big ___ that one.（一样大）
as...as。
基础 2填空：The tea is ___ hot ___ drink.（太烫不能喝）
too...to。
基础 3填空：Is the room big ___?（够大吗）
enough。形后。
基础 4填空：I haven't got ___ money.（足够的钱）
enough。名前。
基础 5改错：as more exciting as
as exciting as。用原级。
基础 6改错：enough cheap
cheap enough。enough 放形后。
进阶 7填空：The film is not ___ good ___ the book.
as...as。not as...as 不如。
进阶 8选词：He's ___ to drive. (enough old / old enough)
old enough。形后。
进阶 9翻译：这部电影太长了，看不下去。
The film is too long to enjoy/watch.
进阶 10改错：It's too expensive not to buy.
It's too expensive to buy. too...to 不加 not。
进阶 11完形：The flat is (1) ______ big ______ (一样大) our old one, but it's (2) ______ expensive ______ (太贵) rent. I don't have (3) ______ (足够) money.
(1) as...as；(2) too...to；(3) enough。
进阶 12翻译：这个房间够三个人住。
The room is big enough for three people.
挑战 13PET 改写句：The book is good. The film is also good.（用 as...as）
The film is as good as the book.
挑战 14开放完形：It's ___ cold to go out without a coat.
too。too cold to go out。
挑战 15写作小练：用 too...to 和 enough 各写一句评价一家店。
参考：The shop is too far to walk to, but the prices are low enough for students.
挑战 16改错（3 处）：as bigger as / enough warm / too tired not to walk
① bigger → big；② enough warm → warm enough；③ not to walk → to walk。
挑战 17口语连线：用 3 句讨论选哪家餐厅（用 as...as / too / enough）。
参考：This restaurant is as good as that one. But it's too far. Is there one close enough?
挑战 18翻译：他够高了，能够到书架。
He's tall enough to reach the shelf.

ΣC; 记忆口诀与 7 天复习计划

三句口诀① as...as 中间原级：和……一样；not as...as = 不如。
② too...to 太……不能，本身含否定，别加 not。
③ enough 形后名前：cheap enough / enough money。

B1 写作加分连接词（Email 里随手用）

功能连接词例句
补充also / as well / tooI also enjoy swimming.
转折but / however / althoughIt was expensive, but we enjoyed it.
原因because / soI stayed home because I was tired.
举例for example / such asI like outdoor sports, such as running.
结尾Anyway / Write soonAnyway, I have to go now.

7 天复习计划（配合 PET Unit 3）

天任务自检
第 1 天背变形/词表 + 做基础 1-6全对即可
第 2 天做进阶 7-12 + 重做错题错题重做全对
第 3 天挑战 13-18 + 写一段相关短文写完自查本课规则
第 4 天回看考点表，做 1 篇 PET 对应题型本课相关空全对
第 5-7 天每天口头说 5 句用上本课知识点的话口语流利不卡壳

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