内容正文:
Unit4 Hands-on Fun
⭐Grammar导学案
整体学习目标
1. 掌握祈使句肯定、否定、礼貌、提议四种结构;区分 should / had better 语气强弱,会用两者正反提 DIY 手工建议;
2. 掌握否定前缀 un- / in- / im- 构词规则,形容词加前缀表相反含义,能正确变形、在 DIY 话题中运用;
3. 能在手工操作说明、DIY 建议、描述手工经历三类话题融合三类语法词汇;
4. 小组合作运用语法、词汇写手工操作步骤、给同伴提手工建议、描述手工过程中不顺 / 不完美的情况,完成口语、书面分层输出。
第一部分 预习案(课前自主完成)
一、词汇预习・基础过关
(一)Grammar A 祈使句 Imperative sentences
1. 四类祈使句结构背诵
1. 肯定祈使句:动词原形开头,表指令
2. 否定祈使句:Don’t + 动词原形,表禁止
3. 礼貌祈使句:句首 / 句尾加 please
4. 提议共同做:Let’s + 动词原形 我们一起……
2. 手工操作动词(A1 方框词)
cut, draw, give, keep, look, try, write
3. 核心例句
Look for the mark. / Don’t mix them up. / Please hand me tools. / Let’s put wood together.
(二)Grammar B should & had better
1. 句式规则
1. 肯定:should + 动词原形 / had better + 动词原形
2. 否定:shouldn’t + 动原 / had better not + 动原
3. 语气差异:had better 语气更强,表最好立刻做;should 温和建议
2. DIY 建议短语
read instructions carefully, be patient, be careful with scissors, join a DIY club
(三)Word power 否定前缀 un-/in-/im-
1. 前缀使用规则
1. un-:多数普通形容词 lucky→unlucky, usual→unusual
2. in-:c /p 以外部分形容词 correct→incorrect, complete→incomplete
3. im-:以 p 开头形容词 possible→impossible, polite→impolite
2. 变形清单
lucky-unlucky; usual-unusual; correct-incorrect; complete-incomplete; possible-impossible; polite-impolite
(四)核心句型预习(抄写 + 翻译)
1. Cut paper with scissors. Don’t mix different sizes. Please follow the steps. Let’s make flashcards together.
译:________________________________________
2. You should read instructions first. You’d better not take too much paint on the brush.
译:________________________________________
3. It is impossible to finish it in one hour. His answer is incorrect.
译:________________________________________
二、预习思考
1. 祈使句四种句式分别用来表达什么?否定祈使句开头加什么词?
2. should 和 had better 在语气上有什么区别?否定形式怎么变?
3. un- /in-/im- 分别加在哪类形容词前?作用是什么?
第二部分 课堂探究案(课中小组合作完成)
探究任务一:语法文本问题链分层研读
(一)A 祈使句 Imperative sentences
基础浅层问题
1. We use ______ form of verb to tell people actions.
2. Add ______ before verb for negative orders.
3. Add ______ to make instructions polite.
4. Use ______ to suggest doing things together.
进阶辨析问题
1. 例句区分:
肯定:Cut the paper.
否定:Don’t mix them up.
礼貌:Please hand me tools. / Hand me tools, please.
共同提议:Let’s put the wood together.
2. 易错点:祈使句无主语,永远用动词原形,第三人称不加 s。
(二)B should & had better
基础浅层问题链
1. We use ______ and ______ to give advice.
2. ______ has stronger tone than ______.
3. 否定结构:shouldn’t do /had better not do
进阶理解问题
1. You’d better clean the box first. = It’s best for you to clean it first.
2. You shouldn’t go too fast. 委婉劝告不要做某事。
(三)Word power 否定前缀 un-/in-/im-
基础浅层问题链
1. Prefix un-/in-/im- mean “______”, turn adjectives into opposites.
2. un- 通用;in- 用于 correct/complete;im- 用于 p 开头单词 possible/polite。
进阶理解问题
1. unusual = not usual; impossible = not possible; incorrect = not correct
2. 填空:possible → ______; lucky → ______; correct → ______
探究任务二:合作探究・小组习题突破(4 人互助小组)
活动 1:Grammar A1 制作卡片操作祈使句填空
结合手工流程图,用方框动词原形填写指令,小组朗读,区分肯定、否定、礼貌祈使句。
1. Cut 2. Write 3. Draw 4. Look 5. try 6. keep 7. Don’t give
活动 2:Grammar B1 DIY 建议改写
将 7 条提示分别用 should /shouldn’t /had better /had better not 改写,小组对比两种句型语气差异。
活动 3:Word power A 加前缀变形 + B 对话填空
小组合作给形容词加对应否定前缀,完成对话填空,讲解每一处反义词含义。
探究任务三:迁移表达・分层输出
迁移 1:口头基础输出(手工操作指令)
模板(祈使句):
Cut the wood into small pieces. Don’t use too much glue. Please wear gloves. Let’s make the shelf together.
模板(提建议):
You should read instructions first. You’d better not play with sharp scissors.
模板(否定前缀):It’s impossible to finish DIY without patience.
迁移 2:双人综合对话(融合三类语法)
A: I want to make mooncakes, but it looks impossible for me.
B: Don’t worry. You should read steps carefully. You’d better not add too much sugar. Let’s make them together.
A: Thanks. I won’t make incorrect operations.
迁移 3:书面短句输出
1. 祈使句 3 句(手工操作)
2. should /had better 建议各 1 句
3. un-/in-/im- 反义词句子 2 句
第三部分 课后拓展案(分层巩固作业)
基础层(全体必做)
1. 背诵祈使句四类结构、should/had better 用法、三类否定前缀变形;
2. 完成课本 Grammar A1/A2、B1/B2、Word power A/B 全部习题,标注语法依据;
3. 写 8 句句子:3 句祈使句、3 句提建议、2 句否定前缀反义词,主题 DIY 手工。
提升层(中等学生选做)
1. 句型转换:陈述句 ↔ 祈使句互换;should 同义替换 had better;
2. 词汇整理:分三栏记录 un-/in-/im- 变形形容词;
3. 短文改写:改写 Reading Andrew DIY 文章,加入祈使句、建议句型、否定前缀单词。
培优拓展层(学有余力)
1. 双人录制 1 分钟口语对话:讲解手工制作步骤、给对方 DIY 提建议、描述手工中遇到的不顺利;
2. 小短文《How to do DIY well》8 句以上,综合三类语法词汇;
3. 拓展积累:额外搜集 6 个形容词,加对应否定前缀并造句。
课堂小结(留白填写)
1. 祈使句:肯定______原形;否定 Don’t + 动原;礼貌加______;共同提议 Let’s + 动原;
2. 提建议:温和______;语气更强 ______;否定 shouldn’t /had better not;
3. 否定前缀:通用______;correct/complete 用______;p 开头形容词用______。
当堂检测(5 分钟小测)
一、用正确祈使句形式填空
1. ______ (write) words on cards. ______ (not mix) different paper.
2. ______ (please / cut) the wood for me. ______ (let / make) lanterns together.
二、用 should /had better 改写
1. It’s best to read DIY books. → You ______ ______ DIY books.
2. It’s not good to run fast. → You ______ ______ fast.
三、加前缀写反义词
1. possible → ______ 2. lucky → ______ 3. correct → ______ 4. polite → ______
四、单项选择
1. ______ careful with scissors, don’t hurt yourself.
A. Are B. Be C. Being
2. You ______ waste glue, it’s not cheap.
A. shouldn’t B. had better C. should
3. It is ______ to finish the work without tools.
A. usual B. impossible C. correct
五、翻译句子
1. 用剪刀裁剪彩纸,不要混淆尺寸;请按照步骤操作,我们一起制作手工卡片。
2. 做手工前你应当阅读说明书,最好不要把玩尖锐工具;缺少工具就不可能完成制作,还会出现错误操作。
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