Unit 2 What's your opinion（易错题专项训练·语法提升）英语外研版三起六年级上册（新教材）

**基本信息** 聚焦形容词比较级和情态动词should两大核心语法点，通过规则-用法-易错点三级体系构建方法框架，培养语言能力与思维品质，实现知识逻辑与解题能力的协同提升。 **专项设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |形容词比较级|小练笔20题+综合应用|规则变化（5类）+不规则变化（6组）+4种句型结构，提炼标志词（than/or）与修饰词（much/even）用法|从变化规则到用法场景，形成“形式-功能”递进链条，通过易错题强化特殊变化与句型应用| |情态动词should|小练笔10题+综合应用|肯定/否定/疑问/特殊疑问句4种句式结构，强调“should+动词原形”核心规则|从基本结构到实际建议表达，构建“语法形式-语用功能”迁移路径，突出否定式shouldn't与疑问句答法| |综合训练|6大题（含语篇）|融合比较级与should的语法应用，新增新语篇阅读（AI主题）|整合单句语法与语篇理解，提升语言综合运用能力，体现思维品质中的分析与解决问题能力|

Unit 2 What’s your opinion? 专题02 语法提升·易错题专项训练 · 内容导航 · 形容词的比较级 情态动词should的用法 高频易错点、易错点提示、小练笔、答题点拨 易错精讲 形容词的比较级高频易错点01 （一）比较级规则变化 ①一般情况下，在词尾直接加-er。 tall→taller ②以不发音e结尾的词，在词尾加 –r 。 nice→nicer ③以一个辅音字母结尾的重读闭音节单词，双写这个辅音字母，再加-er。 thin→thinner ④以“辅音+y”结尾的词，变y为i再加-er。 dry→drier ⑤多音节和部分双音节形容词前面加 more。 delicious→more delicious （二）比较级的不规则变化 原 级 比较级 原 级 比较级 good/well better little less bad/ill worse old older/elder many/much more far farther / further （三）比较级的用法 比较级+than Jim is older than Geoffrey. Jim比Geoffrey大一些。 比较级+than+比较级 He is growing taller and taller. 他长得越来越高。 the+比较级，the+比较级 The more, the better. 越多越好。 选择疑问句中含有比较级 Which shirt is more beautiful, the blue one or the red one? 哪一件衬衫更漂亮，蓝色的这件还是红色的这件？ 形容词比较级用于两者之间的比较，“than (比)” 和 “连接两者的 or (或者)” 是句中形容词用比较级的标志词。 句型 “A+be 动词 (+even/much)+ 形容词比较级 + than B.” 意为 “A 比 B 更……”。 例句：I am taller than Mike. 我比迈克高。 I am 4 cm taller than your sister. 我比你的妹妹高 4 厘米。 Peter is even stronger than his father. 彼得比他的爸爸还强壮。 【拓展】比较级前还可用 much、a lot、a little、even、still、twice、three times 等词进行修饰。但注意不可以使用 very。 小练笔 一、 用所给单词的适当形式填空。 1. Who is ______ (tall), Tom or his sister? 2. This dress is ______ (nice) than that skirt. 3. Maths is ______ (easy) than English for me. 4. Which is ______ (fast), a train or a bus? 5. Summer is ______ (hot) than spring. 6. My mum is ______ (busy) than my dad. 7. I have ______ (many) science books than my little brother. 8. Which is ______ (big), a tiger or a lion? 9. A dictionary is ______ (useful) than a comic book when we learn new English words. 10. Reading English every morning is ______ (good) than playing games for your study. 二、单项选择。 ( ) 1. My bag is ______ and ______ than yours. A. bigger;heavier B. bigger;heavyer C. big;heavy ( ) 2. When the sun gets ______ in the afternoon, our shadow gets longer. A. longer B. lower C. higher ( ) 3. Tom is ______ younger than Mike. A. many B. more C. much ( ) 4. —Are you feeling ______ today? —Yes, thank you. A. good B. health C. better ( ) 5. Tom weighs 50 kilograms. His sister weighs 45 kilograms. Tom is ______. A. heavy B. heavier C. more heavier 三、用括号内所给词的适当形式填空，补全短文。 I learn English with Doubao every day. It is 1. ______ (nice) than other learning tools. With its help, I am 2. ______ (careful) than before. English study becomes 3. ______ (easy) than before. This new way is 4. ______ (good) than the old way. I become 5. ______ (happy) than before. I should listen to my teacher carefully in class. I can learn new words with Doubao after class. It can answer many of my questions in English. It is a great helper for my English study. 情态动词should的用法高频易错点02 should 是情态动词，后接动词原形，无人称和数的变化，否定形式为 should not（缩写 shouldn’t）。这本单元中should表示 “应该、应当”用于提出建议、义务或责任，语气比 must 委婉。 易错点提示 1. 肯定句：主语 + should + 动词原形 + 其他. 如： He should eat more vegetables. 他应该多吃蔬菜。 2. 否定句：主语 + shouldn’t + 动词原形 + 其他. 含 should 的否定句，直接在 should 后加 not 即可，should not 可缩写为 shouldn’t，意为 “不应该”。如： They shouldn’t shout in the library. 他们不应该在图书馆里大喊大叫。 3. 一般疑问句：Should + 主语 + 动词原形 + 其他？ 肯定回答：Yes, 主语 + should.；否定回答：No, 主语 + shouldn’t.。如： —Should I wash the potatoes now? 我现在应该洗土豆吗？ —Yes, you should./No, you shouldn’t. 是的，你应该。/ 不，你不应该。 4. 特殊疑问句：特殊疑问词 + should (+ 主语)+ 动词原形 (+ 其他)？ 回答：主语 + should + 动词原形 (+ 其他).。如： —What should he do? 他应该做什么？ —He should ask a policeman for help. 他应该向警察求助。 小练笔 一、单项选择。 ( ) 1．Tim ______ eat too much sweet food. It’s bad for ______. A．can’t; he B．shouldn’t; him C．should; his ( ) 2．We should ______ kind to children.   A．be B．is C．are ( ) 3．We should ______ more vegetables. A．eat B．eating C．eats ( ) 4．We should ______ the rules. A．follow B．follows C．following ( ) 5．We should ______ to the teacher politely. A．talk B．talks C．talked ( ) 6．We should ______ the earth. A．protected B．protects C．protect 二、按要求写句子。 1．grandma, home, my, a, should, rest, have, at (.) (连词成句) _________________________________________ 2．much, you, water, cold, not, too, drink, should (.) (连词成句) _________________________________________ 3．She should drink some warm water. (对划线部分提问) should she ? 4．Tim should eat some sweets.(改为否定句) Tim eat sweets. 综合训练 一、选择正确选项补全句子。 ( ) 1. This box is too big. Do you have a ______ one? A. bigger B. smaller C. smallest ( ) 2. Students can ______ crayons to draw pictures. A. use B. used C. using ( ) 3. Health is ______ than a nice taste. A. important B. importanter C. more important ( ) 4. I hope to travel to Beijing ______ next year. A. some time B. sometime C. sometimes ( ) 5. Drinking warm water is better ______ your stomach. A. for B. to C. on 二、请选词并用其适当形式填空补全句子。 sweet without careful health peel 1. She goes to school ______ breakfast. 2. Nina is ______ with her homework than before. 3. We should ______ oranges before eating them. 4. This strawberry cake is ______ than the chocolate one. 5. Walking every day is ______ than sitting for a long time. 三、用所给单词的适当形式填空。 1. Speaking is ______ (easy) than writing. 2. ______ (peel) a carrot takes more time. 3. What is the ______ (discuss) about? 4. —Your health is ______ (important) than a nice taste. —You’re right. 5. Let’s meet ______ (sometimes) next month. 四、按照要求完成下列句子。 1. I’m short. But the other crayons are long.（用比较级把这两句话合并成一句话） 2. Lucy wrote letters to David.（对画线部分进行提问） 3. boys, I’m, the, than, other, shorter (.)（连词成句） 4. is, which, sun, for, better, the, colour (?)（连词成句） 5. ball, black, about, a, beach, how (?)（连词成句） 五、用所给单词的适当形式填空。 Some people think life in the countryside is healthier. Summer nights there feel 1. ______ (long) and more peaceful than in the noisy city. City buildings are tall, but the views (景色) in the country are often 2. ______ (beautiful). For daily travel, city life is far 3. ______ (easy) than in the countryside—you can take buses, subways or shared bikes anytime. There is no simple answer as to which life is 4. ______ (good)—it depends on (取决于) what you value (看重). Making a choice that suits (适合) you is 5. ______ (clever) than simply following others. 六、【新语篇·人工智能】Amy 向同学们介绍人工智能助手 DeepSeek。阅读文章，选出最佳答案。 Should we use AI assistant? DeepSeek is a new AI assistant (助手) from China. It can help people in many ways, just like a smart friend. It can answer your questions, solve maths problems and even write stories for you. If you want to learn English well, DeepSeek is a good helper. That’s what DeepSeek does! Many teachers like DeepSeek because it makes learning easier. But they think students should use their own brains (大脑). Mr Zhang, an English teacher, says, “Al is helpful, but our brains are more important.” Now, over 10 million (百万) people use DeepSeek every day. Some use it on phones, others on computers. It’s free for us, but we should make good use of Al and use it properly (适当地). ( ) 1. What is DeepSeek? A. A robot teacher. B. A smart friend. C. An AI assistant. ( ) 2. What can’t DeepSeek do? A. Answer your questions. B. Cook delicious food. C. Help you learn English. ( ) 3. How many people use DeepSeek every day? A. Ten thousand. B. Over one million. C. Over ten million. ( ) 4. From this passage, we can know ________. A. all teachers like to use DeepSeek B. we can’t use DeepSeek on phones C. if you have maths questions, you can ask DeepSeek ( ) 5. Which one is true? A. DeepSeek can help people do everything. B. Students don’t need to think because they can use DeepSeek. C. Lots of people use DeepSeek every day. 参考答案 小练笔 01 一、 用所给单词的适当形式填空。 1. taller 2. nicer 3. easier 4. faster 5. hotter 6. busier 7. more 8. bigger 9. more useful 10. better 二、单项选择。 1. A 2. B 3. C 4. C 5. B 三、用括号内所给词的适当形式填空，补全短文。 1. nicer 2. more careful 3. easier 4. better 5. happier 小练笔 02 一、单项选择。 1．B 2．A 3．A 4．A 5．A 6．C 二、按要求写句子。 1．My grandma should have a rest at home. 2．You should not drink too much cold water. 3．What；do 4．shouldn’t；any 综合训练 一、选择正确选项补全句子。 1. B 2. A 3. C 4. B 5. A 二、请选词并用其适当形式填空补全句子。 1. without 2. more careful 3. peel 4. sweeter 5. healthier 三、用所给单词的适当形式填空。 1. easier 2. Peeling 3. discussion 4. more important 5. sometime 四、按照要求完成下列句子。 1. I’m shorter than the other crayons. 2. Who wrote letters to David? 3. I’m shorter than the other boys. 4. Which colour is better for the sun? 5. How about a black beach ball? 五、用所给单词的适当形式填空。 1. longer 2. more beautiful 3. easier 4. better 5. cleverer / more clever 六、【新语篇·人工智能】Amy 向同学们介绍人工智能助手 DeepSeek。阅读文章，选出最佳答案。 1. C 2. B 3. C 4. C 5. C 第 1 页 共 18 页 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $