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仁爱科普版·八年级英语下册期中复习
——考点2：情态动词表示建议（should / shouldn't / had better）
本考点源自Unit 7 “Be a Better Learner!”。在给别人提建议时，我们常用should, shouldn't和had better (not)。本讲帮你彻底分清它们的用法和语气强弱，并能在实际对话和写作中正确运用。
一、核心知识（一看就懂）
1. should + 动词原形 —— “应该”，语气温和礼貌，适合给朋友、同学提建议。
You should preview the lesson before class. (你应该课前预习。)
You should review after class. (你应该课后复习。)
2. shouldn't + 动词原形 —— “不应该”，语气较强，劝告不要做某事。
You shouldn't waste water. (你不应该浪费水。)
You shouldn't stay up late. (你不应该熬夜。)
3. had better + 动词原形 —— “最好”，语气最强，表示强烈建议或警告。
You had better finish your homework first. (你最好先完成作业。)
You had better not play computer games too long. (你最好不要玩太久电脑游戏。)
否定形式： had better not + 动词原形
You had better not to go. You had better not go.
二、语气强弱对比（从弱到强）
You should ... ★★☆☆☆ 温和建议（日常、学习建议）
You shouldn't ... ★★★☆☆ 严肃提醒（指出错误行为）
You had better ... ★★★★☆ 强烈劝告（重要事项，暗示后果）
You had better not ... ★★★★★ 警告（严重警告、禁止）
对长辈/老师尽量避免用had better，可用should或委婉句式。
三、学生最容易犯的4个错误
易错1： had better后误加to
You had better to go now. You had better go now.
易错2： had better否定形式写错
You had better not to go. / You hadn't better go. You had better not go.
易错3： should和had better语气不分场合
对老师说：You had better explain this again. Could you please explain this again
易错4： 回答建议时只会说“OK”
接受建议：That's a good idea. / I will. / Thanks for your advice.
拒绝建议：I'd rather not. / I'm afraid I can't. / Maybe later.
速记口诀：
should 应该语气缓，had better 最好强一点。
否定形式加 not，动词原形紧跟其后。
提建议时看对象，礼貌得体是关键。
四、经典例题（考试常见）
例1： You look tired. You ______ have a rest.
A. should B. had better to C. shouldn't D. had better not
答案：A（温和建议）
例2： The floor is wet. You ______ run here.
A. should B. had better C. had better not D. shouldn't to
答案：C（警告不要跑）
例3： — I'm going to give a speech. I'm so nervous.
— You ______ be too nervous. You have practiced a lot.
A. should B. shouldn't C. had better D. had better not
答案：B（安慰对方不要太紧张）
五、分层练习（ 由易到难）
A组 基础填空 · 用 should / shouldn't / had better / had better not 填空（每题1分，共10分）
1. You look pale. You ______ see a doctor.
2. You ______ waste water. It's precious.
3. The exam is tomorrow. You ______ go to bed early.
4. You ______ play with fire. It's dangerous.
5. You ______ preview the lesson before class.
6. You ______ talk loudly in the library.
7. It's late. You ______ leave now.
8. You ______ eat too much junk food.
9. You ______ listen carefully in class.
10. You ______ stay up too late.
B组 单项选择 · 根据对话语境选择最佳答案（每题2分，共12分）
1. — I have a toothache. — You ______ eat so much candy.
A. should B. shouldn't C. had better D. had better not
2. — I always make mistakes in grammar. — You ______ do more exercises.
A. should B. shouldn't C. had better not D. don't
3. — I'm going to meet an important client. — You ______ be late.
A. should B. shouldn't C. had better D. had better not
4. — The weather report says there will be a storm. — We ______ stay at home.
A. should B. shouldn't C. had better D. had better not
5. — I can't fall asleep at night. — You ______ drink coffee before bed.
A. should B. shouldn't C. had better D. had better not
6. — I failed the math exam again. — You ______ give up. Keep trying.
A. should B. shouldn't C. had better D. had better not
C组 改错题 · 找出错误并改正（每题2分，共8分）
1. You had better to go now.
2. You shouldn't to waste water.
3. You had better not to be late.
4. You should listening carefully in class.
D组 完成句子 · 根据汉语提示填空（每题2分，共10分）
1. 你应该每天读英语。
You ______ read English every day.
2. 你最好不要熬夜太晚。
You ______ ______ ______ stay up too late.
3. 你不应该在图书馆里大声说话。
You ______ talk loudly in the library.
4. 你最好认真听讲。
You ______ ______ listen carefully.
5. 你应该预习新课。
You ______ preview the new lesson.
E组 情景对话 · 补全对话（每空1分，共8分）
A: I'm worried about my English. I can't remember new words.
B: You (1) ______ use a word book. Write down the words and review them often.
A: That's a good idea. (2) ______ I read English every morning
B: Yes, you (3) ______. Reading is very helpful.
A: Sometimes I feel sleepy in class.
B: You (4) ______ (最好) go to bed early at night.
A: OK. And what about speaking
B: You (5) ______ practice speaking with your classmates. You (6) ______ (最好不要) be shy.
A: Thank you. I will try my best.
B: You (7) ______ give up. Keep trying, and you will improve.
A: I won't. I (8) ______ follow your advice.
F组 任务型写作 · 给同学写建议信（满分10分）
你的朋友王明最近英语成绩不理想，他很焦虑。请你给他写一封建议信（不少于60词），内容包括：
1. 安慰他不要焦虑（用 shouldn't）
2. 提出至少三条学习建议（包含 should, had better 等）
3. 鼓励他不要放弃（用 had better not）
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参考答案
A组：
1. should / had better 2. shouldn't / had better not 3. should / had better 4. shouldn't / had better not 5. should / had better 6. shouldn't / had better not 7. should / had better 8. shouldn't / had better not 9. should / had better 10. shouldn't / had better not
B组：
1. B 2. A 3. D 4. C 5. B 6. B
C组：
1. 去掉to 2. 去掉to 3. 去掉to 4. listening → listen
D组：
1. should 2. had better not 3. shouldn't 4. had better 5. should
E组：
1. should / had better 2. Should 3. should 4. had better 5. should / had better 6. had better not 7. shouldn't / had better not 8. will
F组（参考范文）：
Dear Wang Ming,
I know you are worried about your English. You shouldn't be too anxious. Here are some suggestions. First, you should preview the lesson before class. Second, you had better take notes and review them after class. Third, why not practice speaking with classmates every day You had better not give up. Keep trying, and you will improve. Believe in yourself!
Yours, Li Hua
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