Unit6语法讲解及习题_情态动词should与had better-2025- 2026学年沪教版英语八年级下册

沪教（牛津）英语八下Unit6语法讲解及习题 情态动词should与had better 一、语法概念 本单元重点学习情态动词should和had better的用法，二者均用于给出建议或表达责任/义务，但语气和适用场景略有不同，是日常交流、学习建议等场景的常用语法。 二、详细用法讲解 1. should的用法 含义 表示“应该/应当”，用于给出合理、正确的建议，或表达“做某事是最佳/正确的选择”，语气相对委婉。 结构 肯定：主语 + should + 动词原形 例：We should pick something related to Chinese culture.（我们应该选和中国文化相关的内容。） 否定：主语 + shouldn’t（should not） + 动词原形 例：You shouldn’t put too much information on your poster.（你不应该在海报上放太多信息。） 2. had better的用法 含义 表示“最好”，用于给出特定情境下的强烈建议（暗含“不这样做可能有不好的结果”），语气比should更强烈、更口语化。 结构 肯定：主语 + ’d better（had better） + 动词原形 例：You’d better start early.（你最好早点开始。） 否定：主语 + ’d better not（had better not） + 动词原形 例：You’d better not pick such a broad topic.（你最好不要选这么宽泛的主题。） 3. 补充说明 ought to与should含义相近（“应该”），但使用频率低于should； had better的缩写形式为’d better，否定缩写为’d better not。 三、习题训练 （一）用should/shouldn’t/had better/had better not填空 1. You ___________ read more English books to improve your vocabulary. 2. It’s going to rain. We ___________ take an umbrella with us. 3. You ___________ talk loudly in the library—it’s impolite. 4. He has a test tomorrow. He ___________ stay up late tonight. 5. We ___________ practice speaking English every day if we want to improve. 6. The deadline is next Monday. You ___________ finish the poster this weekend. 7. You ___________ eat too much junk food—it’s bad for your health. 8. She wants to join the speech competition. She ___________ prepare a good opening story. 9. The restaurant is always busy. We ___________ book a table before we go. 10. You ___________ be shy when talking to others in English. （二）用所给动词的正确形式完成句子 请用“should/had better + 动词原形”的形式完成句子。 1. Li Jie ___________ (read) more English books instead of magazines about pop stars. 2. Su Mei ___________ (pronounce) her words more clearly when she speaks English. 3. We ___________ (try) different ways to make English learning fun. 4. You ___________ (not make) such a broad poster—keep it simple. 5. Wang Yao ___________ (make) more friends and ___________ (not be) so shy. 6. Xiao Chen ___________ (do) his homework more carefully and ___________ (think) before he speaks. 7. You ___________ (start) preparing for the English speech competition early. 8. We ___________ (use) English in real-life situations to practice. 9. You ___________ (not talk) when the teacher is speaking in class. 10. He ___________ (join) the English club to practice speaking. （三）选择正确的选项 从A、B、C中选出符合语法的选项。 1. You ___________ pick a specific topic for your poster—broad topics are hard to design. A. should B. had better not C. had better 2. We ___________ practice English every day if we want to make progress. A. shouldn’t B. should C. had better not 3. It’s getting dark. You ___________ go out alone now. A. had better not B. should C. had better 4. She ___________ her pronunciation if she wants to win the speaking competition. A. should improve B. had better improves C. shouldn’t to improve 5. You ___________ be late for the English Week opening ceremony—it’s important. A. had better B. shouldn’t C. should （四）根据情境写建议 请用should/had better为下列情境写一条建议。 1. 情境：你的朋友想参加英语演讲比赛，但很紧张。 建议：_____________________________________________________________________ 2. 情境：你的同学英语作业总是粗心出错。 建议：_____________________________________________________________________ 3. 情境：你们班要举办英语周活动，但还没确定主题。 建议：_____________________________________________________________________ 4. 情境：你的朋友想提高英语听力，但很少听英文材料。 建议：_____________________________________________________________________ 5. 情境：明天有英语测试，你的同桌还没复习。 建议：_____________________________________________________________________ （五）翻译句子 将下列句子翻译成英文（需包含should/had better）。 1. 你应该选一个和中国文化相关的主题。 _____________________________________________________________________ 2. 你最好不要在海报上放太多信息。 _____________________________________________________________________ 3. 我们应该每天练习说英语。 _____________________________________________________________________ 4. 她最好早点开始准备演讲比赛。 _____________________________________________________________________ 5. 你不应该在图书馆里大声说话。 _____________________________________________________________________ 四、答案及解析 （一）用should/shouldn’t/had better/had better not填空 1. should（给出合理建议） 2. had better（特定情境下的强烈建议） 3. shouldn’t（表达“不应该”的行为） 4. shouldn’t（不这样做有不好的结果） 5. should（给出合理的学习建议） 6. had better（针对截止日期的强烈建议） 7. shouldn’t（表达“不应该”的行为） 8. should（给出比赛准备的建议） 9. had better（针对餐厅繁忙的强烈建议） 10. shouldn’t（建议克服害羞） （二）用所给动词的正确形式完成句子 1. should read（should后接动词原形） 2. should pronounce（should后接动词原形） 3. should try（should后接动词原形） 4. had better not make（had better not后接动词原形） 5. should make; shouldn’t be（should后接动词原形，否定用shouldn’t） 6. should do; should think（should后接动词原形） 7. had better start（had better后接动词原形） 8. should use（should后接动词原形） 9. shouldn’t talk（shouldn’t后接动词原形） 10. should join（should后接动词原形） （三）选择正确的选项 1. C（针对海报设计的强烈建议，用had better） 2. B（合理的学习建议，用should） 3. A（特定情境下的否定建议，用had better not） 4. A（should后接动词原形，“should improve”表示“应该提升”） 5. B（表达“不应该”的行为，用shouldn’t） （四）根据情境写建议 （答案不唯一，合理即可） 1. You should start your speech with an interesting story to relax. 2. You should do your homework more carefully. 3. We should pick a fun topic like “English around us” for English Week. 4. You should listen to English songs or podcasts every day. 5. You had better start reviewing for the English test right now. （五）翻译句子 1. You should pick a topic related to Chinese culture.（should表示“应该”） 2. You had better not put too much information on your poster.（had better not表示“最好不要”） 3. We should practice speaking English every day.（should表示“应该”） 4. She had better start preparing for the speech competition early.（had better表示“最好”） 5. You shouldn’t talk loudly in the library.（shouldn’t表示“不应该”） ( 1 ) 学科网（北京）股份有限公司 $