Unit 2 Changes单元知识总结及重点易错（专项训练）-2026-2027学年北师大版（三起）英语六年级上册

**基本信息** 聚焦“Changes”主题，以10个重点易错考点为核心，通过基础-提升-拓展三层训练（共90题）系统强化过去与现在对比的语法结构及语言表达，提升语言能力与思维品质。 **专项设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |重点语法考点|10考点×9题|分层突破（基础辨结构、提升辨错误、拓展悟规则）|从核心语法（used to/there be/比较级等）到综合运用，构建“概念-辨析-应用”逻辑链|

北师大版（三起）六年级上册 Unit 2 Changes ｜ 专项训练 最新北师大版（三起）六年级上册 Unit 2 Changes 单元知识总结及重点易错专项训练 ■ ■ ■ ■ ■ ■ ■ 说明：本练习紧扣最新教材精选 10 个重点易错考点，每个考点含基础题×3、提升题×3、拓展题×3，共 90 题。 ★ 重点单词 change, changed, different, before, now, was, were, used to, didn't use to, look, hair, tall, short, fat, thin, glasses, wore, didn't wear, live, lived, move, moved, school, study, studied, learn, learned, teach, taught, ride, rode, can, could, couldn't, well, better, best ★ 重点短语 used to do sth.（过去常常做某事）, didn't use to do sth.（过去不常做）, before/now（以前/现在）, look different（看起来不同）, wear glasses（戴眼镜）, go to school（上学）, live in...（住在……）, ride a bike（骑自行车）, do well in...（擅长……）, take care of（照顾）, grow up（长大）, change a lot（变化很大）, the same as（和……一样）, be different from（和……不同） ★ 重点句型 I used to have short hair. Now I have long hair. She didn't use to wear glasses. Now she wears glasses. There was a small school here before. Now there is a big one. He could ride a bike at the age of six. / He couldn't swim before. How did you change? — I grew taller and stronger. Did you use to live in Qingdao? — Yes, I did. / No, I didn't. People didn't use to have computers. Now everyone has one. The town has changed a lot. There are more buildings now. She looks different now. Her hair is much longer. We are different from before. We study harder now. ★ 重点语法 ① used to + 动词原形（过去习惯/状态，现在已变） ② didn't use to + 动词原形（过去不常做，注意 use 用原形） ③ There was/were... before; There is/are... now（过去/现在对比） ④ 一般过去时肯定/否定/疑问（was/were, could/couldn't, 规则/不规则动词） ⑤ 形容词比较级 taller/shorter/stronger/more（变化对比） ⑥ 时间状语 before / now / ...ago / when I was young ⑦ 疑问句 Did ... use to ...? / Could ...? 及回答 ⑧ 否定句 didn't use to / couldn't / wasn't / weren't ⑨ 反义词/对应词 tall↔short, fat↔thin, before↔now, same↔different ⑩ 综合：描述人物/地方/生活的变化（used to + 过去时 + 比较级） 考点一：used to + 动词原形（表示过去习惯/状态，现在已改变） 基础题：（选择题） ◇（ ）1. I ____ have short hair, but now I have long hair. A. used to B. use to C. using to ◇（ ）2. She ____ play the piano when she was young. A. uses to B. used to C. use to ◇（ ）3. They ____ live in a small house before. A. used to B. use to C. are used to 提升题：（选择题） ▷（ ）1. Olivia ____ eat a lot of candy, so she had bad teeth. A. use to B. used to C. uses to ▷（ ）2. Which is WRONG? A. He used to be fat. B. She use to like dancing. C. They used to walk to school. A. A B. B C. C ▷（ ）3. Chen Wei ____ play football, but now he plays basketball. A. used to B. use to C. uses to 拓展题：（选择题） ★（ ）1. The rule: 'used to' is followed by a verb in ____ form. A. original B. past C. -ing ★（ ）2. Identify the correct structure: Subject + ____ + verb (base form). A. used to B. use to C. using to ★（ ）3. In Kunming, Grandpa ____ smoke, but he doesn't now. A. use to B. used to C. uses to 考点二：didn't use to + 动词原形（过去不常做；注意 use 用原形，不是 uses） 基础题：（选择题） ◇（ ）1. She ____ wear glasses, but now she does. A. didn't used to B. didn't use to C. doesn't use to ◇（ ）2. They ____ have a computer at home. A. didn't used to B. didn't use to C. don't used to ◇（ ）3. Jam ____ like vegetables when he was little. A. didn't used to B. didn't use to C. doesn't use to 提升题：（选择题） ▷（ ）1. Lily ____ go to school by bus; she walked. A. didn't used to B. didn't use to C. doesn't use to ▷（ ）2. Which is RIGHT? A. He didn't used to drive. B. She didn't use to sing. C. They didn't uses to swim. A. A B. B C. C ▷（ ）3. Zhang Hao ____ study hard, but now he studies harder. A. didn't used to B. didn't use to C. doesn't use to 拓展题：（选择题） ★（ ）1. After 'didn't', the verb must be in ____ form. A. past B. original C. -ing A. past B. original C. -ing ★（ ）2. The error 'She didn't used to dance' is corrected to 'She ____ dance'. A. didn't used to B. didn't use to C. doesn't use to ★（ ）3. In Xiamen, Grandma ____ watch TV, but now she watches every day. A. didn't used to B. didn't use to C. doesn't use to 考点三：There was / There were（过去有） vs There is / There are（现在有） 基础题：（选择题） ◇（ ）1. There ____ a small school here ten years ago. A. is B. was C. were ◇（ ）2. There ____ many trees in the park now. A. was B. were C. are ◇（ ）3. There ____ some milk in the fridge yesterday. A. was B. were C. is 提升题：（选择题） ▷（ ）1. There ____ a library in our school before, but now there ____ two. A. was; are B. were; is C. was; is ▷（ ）2. In Wuhan, there ____ many old houses, but now there ____ tall buildings. A. were; are B. was; is C. were; is ▷（ ）3. There ____ any computers in the classroom before. A. wasn't B. weren't C. isn't 拓展题：（选择题） ★（ ）1. The rule: 'There ____ some water in the glass just now.' uses ____. A. was B. were C. is ★（ ）2. Identify: 'There were' is used for ____ nouns in the ____ tense. A. plural; past B. singular; past C. plural; present ★（ ）3. In Jinan, there ____ a river here long ago, but now there ____ none. A. was; is B. were; are C. was; are 考点四：一般过去时——规则动词加-ed 与常用不规则动词变化 基础题：（选择题） ◇（ ）1. I ____ my hair yesterday. (wash) A. wash B. washed C. washes ◇（ ）2. She ____ a beautiful picture last week. (draw) A. draw B. draws C. drew ◇（ ）3. They ____ to school by bus when they were young. (go) A. go B. went C. goes 提升题：（选择题） ▷（ ）1. Olivia ____ the piano at the party. (play) A. play B. plays C. played ▷（ ）2. Which is WRONG? A. He ate an apple. B. She drinked milk. C. They ran fast. A. A B. B C. C ▷（ ）3. Chen Wei ____ his homework carefully last night. (do) A. do B. does C. did 拓展题：（选择题） ★（ ）1. The past of 'ride' is ____; the past of 'teach' is ____. A. rode; taught B. rid; teached C. rode; teached ★（ ）2. Rule: for regular verbs, add ____ to make the past form. A. -ing B. -ed C. -s ★（ ）3. In Qingdao, the fisherman ____ a big fish yesterday. (catch) A. catch B. catches C. caught 考点五：形容词比较级 taller / shorter / stronger / more ... 表示变化 基础题：（选择题） ◇（ ）1. Jam is ____ now than he was two years ago. A. tall B. taller C. tallest ◇（ ）2. Lily's hair is ____ than before. A. long B. longer C. longest ◇（ ）3. This school is ____ than the old one. A. big B. bigger C. biggest 提升题：（选择题） ▷（ ）1. Olivia is much ____ at maths now. (good) A. good B. better C. best ▷（ ）2. Which is WRONG? A. She is taller than me. B. He is more strong. C. It is bigger than that. A. A B. B C. C ▷（ ）3. The weather in Xiamen is ____ than in Kunming in winter. (warm) A. warm B. warmer C. warmest 拓展题：（选择题） ★（ ）1. For short adjectives, add ____ to make the comparative. A. -er B. -est C. more ★（ ）2. 'Good' and 'bad' are irregular: good → ____; bad → ____. A. better; worse B. gooder; badder C. best; worst ★（ ）3. In Jinan, summers are getting ____ every year. (hot) A. hot B. hotter C. hottest 考点六：can / could / couldn't 表能力（could 是 can 的过去式） 基础题：（选择题） ◇（ ）1. A baby ____ walk or talk. A. can B. could C. can't ◇（ ）2. When she was five, she ____ swim very well. A. can B. could C. couldn't ◇（ ）3. Zhou Kai ____ ride a bike when he was six. A. can B. could C. couldn't 提升题：（选择题） ▷（ ）1. Olivia ____ speak English before, but now she can. A. can B. could C. couldn't ▷（ ）2. Which is RIGHT? A. He can ran fast. B. She could sings well. C. They could dance beautifully. A. A B. B C. C ▷（ ）3. Chen Wei ____ lift the heavy box, so he asked for help. A. can B. could C. couldn't 拓展题：（选择题） ★（ ）1. 'Can' is for ____; 'could' is for ____. A. present; past B. past; present C. future; present ★（ ）2. After 'can/could', the verb must be in ____ form. A. past B. original C. -ing ★（ ）3. In Wuhan, Grandpa ____ use a computer when he was young. A. can B. could C. couldn't 考点七：疑问句 Did ... use to ...? / Could ...? 及回答 基础题：（选择题） ◇（ ）1. — Did you use to live in Qingdao? — Yes, I ____. A. do B. did C. used ◇（ ）2. — Could she ride a bike at six? — No, she ____. A. can't B. couldn't C. didn't ◇（ ）3. — Did Jam use to wear glasses? — Yes, he ____. A. do B. did C. used 提升题：（选择题） ▷（ ）1. — ____ Lily use to have long hair? — Yes, she did. A. Do B. Does C. Did ▷（ ）2. Which answer is RIGHT? — Did they use to study here? — ____ A. Yes, they use. B. Yes, they did. C. Yes, they do. ▷（ ）3. — Could Zhang Hao swim before? — Yes, ____. A. he can B. he could C. he does 拓展题：（选择题） ★（ ）1. The rule: for 'Did ... use to ...?', the answer is 'Yes, I ____.' A. use to B. did C. used to ★（ ）2. 'Could' questions about the past are answered with 'could' or '____'. A. can't B. couldn't C. don't ★（ ）3. In Xiamen, — Did Grandma use to cook seafood? — ____, she did. A. Yes B. No C. Not 考点八：时间状语 before / now / ...ago / when I was young 的辨析 基础题：（选择题） ◇（ ）1. I was short ____, but now I am tall. A. now B. before C. tomorrow ◇（ ）2. She moved to Wuhan two years ____. A. before B. ago C. after ◇（ ）3. ____ I was young, I liked candies very much. A. Now B. When C. After 提升题：（选择题） ▷（ ）1. Olivia looks different ____ she did five years ago. A. from B. with C. than ▷（ ）2. Which is WRONG? A. He was fat before. B. She moved here ago 3 years. C. They studied hard when young. A. A B. B C. C ▷（ ）3. Chen Wei didn't wear glasses ____, but he does now. A. now B. today C. before 拓展题：（选择题） ★（ ）1. 'Ago' is used with the ____ tense; 'before' can be used with ____. A. past; past or present B. present; past C. future; present ★（ ）2. The correct order: 'She moved to Kunming ____ ____ ____.' A. ago; two; years B. two; years; ago C. years; two; ago ★（ ）3. In Jinan, the town looked small ____. A. now B. today C. a long time ago 考点九：反义词/对应词 tall↔short, fat↔thin, before↔now, same↔different 基础题：（选择题） ◇（ ）1. Jam was fat before, but now he is ____. A. fat B. thin C. short ◇（ ）2. My hair was short, now it is ____. A. shorter B. long C. longest ◇（ ）3. Bella is small now, but she will be ____ in the future. A. smaller B. biggest C. big 提升题：（选择题） ▷（ ）1. Zhou Kai's eyes were brown before, but now they are the ____ colour. A. different B. same C. opposite ▷（ ）2. Which pair is WRONG? A. tall–short B. before–now C. fat–tall A. A B. B C. C ▷（ ）3. The twins look ____. They are not the same as before. A. same B. different C. similar 拓展题：（选择题） ★（ ）1. 'Different' is the opposite of ____; 'before' is the opposite of ____. A. same; now B. now; same C. tall; short ★（ ）2. 'Thin' is the opposite of '____'; 'short' (height) is the opposite of '____'. A. fat; tall B. tall; fat C. big; small ★（ ）3. In Qingdao, the weather is ____ from that in Kunming. A. same B. different C. similar 考点十：综合——描述人物/地方/生活的变化（used to + 过去时 + 比较级综合运用） 基础题：（选择题） ◇（ ）1. Our town ____ a lot. There are more shops now. A. change B. changes C. has changed ◇（ ）2. She ____ to be shy, but now she is confident. A. use B. used C. uses ◇（ ）3. There ____ a cinema here, but it closed last year. A. is B. was C. were 提升题：（选择题） ▷（ ）1. Olivia ____ to have straight hair, but now she ____ curly hair. A. used; has B. use; have C. used; had ▷（ ）2. Which sentence is RIGHT? A. He didn't use to ate meat. B. She used to walked to school. C. They used to live in a village. A. A B. B C. C ▷（ ）3. Chen Wei is ____ taller, ____ stronger and ____ more confident than before. A. more; more; much B. much; much; much C. many; many; many 拓展题：（选择题） ★（ ）1. To describe a big change, we can use 'used to' + ____ + ____ + comparison. A. past verb; present tense B. present verb; past tense C. -ing; -ed ★（ ）2. In Xiamen, the city has changed ____. There ____ many new roads. A. a lot; are B. a lot; were C. a lots; are ★（ ）3. The best summary of Unit 2 is: 'We ____ the same; we all ____ with time.' A. aren't; change B. are; changes C. aren't; changes 参考答案与详细解析 考点一：used to + 动词原形（表示过去习惯/状态，现在已改变） 【基础题】 1. I ____ have short hair, but now I have long hair. 答案：A 解析：（略） 2. She ____ play the piano when she was young. 答案：B 解析：（略） 3. They ____ live in a small house before. 答案：A 解析：（略） 【提升题】 1. Olivia ____ eat a lot of candy, so she had bad teeth. 答案：B 解析：（略） 2. Which is WRONG? A. He used to be fat. B. She use to like dancing. C. They used to walk to school. 答案：B 解析：（略） 3. Chen Wei ____ play football, but now he plays basketball. 答案：A 解析：（略） 【拓展题】 1. The rule: 'used to' is followed by a verb in ____ form. 答案：A 解析：（略） 2. Identify the correct structure: Subject + ____ + verb (base form). 答案：A 解析：（略） 3. In Kunming, Grandpa ____ smoke, but he doesn't now. 答案：B 解析：（略） 考点二：didn't use to + 动词原形（过去不常做；注意 use 用原形，不是 uses） 【基础题】 1. She ____ wear glasses, but now she does. 答案：B 解析：（略） 2. They ____ have a computer at home. 答案：B 解析：（略） 3. Jam ____ like vegetables when he was little. 答案：B 解析：（略） 【提升题】 1. Lily ____ go to school by bus; she walked. 答案：B 解析：（略） 2. Which is RIGHT? A. He didn't used to drive. B. She didn't use to sing. C. They didn't uses to swim. 答案：B 解析：（略） 3. Zhang Hao ____ study hard, but now he studies harder. 答案：B 解析：（略） 【拓展题】 1. After 'didn't', the verb must be in ____ form. A. past B. original C. -ing 答案：B 解析：（略） 2. The error 'She didn't used to dance' is corrected to 'She ____ dance'. 答案：B 解析：（略） 3. In Xiamen, Grandma ____ watch TV, but now she watches every day. 答案：B 解析：（略） 考点三：There was / There were（过去有） vs There is / There are（现在有） 【基础题】 1. There ____ a small school here ten years ago. 答案：B 解析：（略） 2. There ____ many trees in the park now. 答案：C 解析：（略） 3. There ____ some milk in the fridge yesterday. 答案：A 解析：（略） 【提升题】 1. There ____ a library in our school before, but now there ____ two. 答案：A 解析：（略） 2. In Wuhan, there ____ many old houses, but now there ____ tall buildings. 答案：A 解析：（略） 3. There ____ any computers in the classroom before. 答案：B 解析：（略） 【拓展题】 1. The rule: 'There ____ some water in the glass just now.' uses ____. 答案：A 解析：（略） 2. Identify: 'There were' is used for ____ nouns in the ____ tense. 答案：A 解析：（略） 3. In Jinan, there ____ a river here long ago, but now there ____ none. 答案：A 解析：（略） 考点四：一般过去时——规则动词加-ed 与常用不规则动词变化 【基础题】 1. I ____ my hair yesterday. (wash) 答案：B 解析：（略） 2. She ____ a beautiful picture last week. (draw) 答案：C 解析：（略） 3. They ____ to school by bus when they were young. (go) 答案：B 解析：（略） 【提升题】 1. Olivia ____ the piano at the party. (play) 答案：C 解析：（略） 2. Which is WRONG? A. He ate an apple. B. She drinked milk. C. They ran fast. 答案：B 解析：（略） 3. Chen Wei ____ his homework carefully last night. (do) 答案：C 解析：（略） 【拓展题】 1. The past of 'ride' is ____; the past of 'teach' is ____. 答案：A 解析：（略） 2. Rule: for regular verbs, add ____ to make the past form. 答案：B 解析：（略） 3. In Qingdao, the fisherman ____ a big fish yesterday. (catch) 答案：C 解析：（略） 考点五：形容词比较级 taller / shorter / stronger / more ... 表示变化 【基础题】 1. Jam is ____ now than he was two years ago. 答案：B 解析：（略） 2. Lily's hair is ____ than before. 答案：B 解析：（略） 3. This school is ____ than the old one. 答案：B 解析：（略） 【提升题】 1. Olivia is much ____ at maths now. (good) 答案：B 解析：（略） 2. Which is WRONG? A. She is taller than me. B. He is more strong. C. It is bigger than that. 答案：B 解析：（略） 3. The weather in Xiamen is ____ than in Kunming in winter. (warm) 答案：B 解析：（略） 【拓展题】 1. For short adjectives, add ____ to make the comparative. 答案：A 解析：（略） 2. 'Good' and 'bad' are irregular: good → ____; bad → ____. 答案：A 解析：（略） 3. In Jinan, summers are getting ____ every year. (hot) 答案：B 解析：（略） 考点六：can / could / couldn't 表能力（could 是 can 的过去式） 【基础题】 1. A baby ____ walk or talk. 答案：C 解析：（略） 2. When she was five, she ____ swim very well. 答案：B 解析：（略） 3. Zhou Kai ____ ride a bike when he was six. 答案：B 解析：（略） 【提升题】 1. Olivia ____ speak English before, but now she can. 答案：C 解析：（略） 2. Which is RIGHT? A. He can ran fast. B. She could sings well. C. They could dance beautifully. 答案：C 解析：（略） 3. Chen Wei ____ lift the heavy box, so he asked for help. 答案：C 解析：（略） 【拓展题】 1. 'Can' is for ____; 'could' is for ____. 答案：A 解析：（略） 2. After 'can/could', the verb must be in ____ form. 答案：B 解析：（略） 3. In Wuhan, Grandpa ____ use a computer when he was young. 答案：C 解析：（略） 考点七：疑问句 Did ... use to ...? / Could ...? 及回答 【基础题】 1. — Did you use to live in Qingdao? — Yes, I ____. 答案：B 解析：（略） 2. — Could she ride a bike at six? — No, she ____. 答案：B 解析：（略） 3. — Did Jam use to wear glasses? — Yes, he ____. 答案：B 解析：（略） 【提升题】 1. — ____ Lily use to have long hair? — Yes, she did. 答案：C 解析：（略） 2. Which answer is RIGHT? — Did they use to study here? — ____ 答案：B 解析：（略） 3. — Could Zhang Hao swim before? — Yes, ____. 答案：B 解析：（略） 【拓展题】 1. The rule: for 'Did ... use to ...?', the answer is 'Yes, I ____.' 答案：B 解析：（略） 2. 'Could' questions about the past are answered with 'could' or '____'. 答案：B 解析：（略） 3. In Xiamen, — Did Grandma use to cook seafood? — ____, she did. 答案：A 解析：（略） 考点八：时间状语 before / now / ...ago / when I was young 的辨析 【基础题】 1. I was short ____, but now I am tall. 答案：B 解析：（略） 2. She moved to Wuhan two years ____. 答案：B 解析：（略） 3. ____ I was young, I liked candies very much. 答案：B 解析：（略） 【提升题】 1. Olivia looks different ____ she did five years ago. 答案：A 解析：（略） 2. Which is WRONG? A. He was fat before. B. She moved here ago 3 years. C. They studied hard when young. 答案：B 解析：（略） 3. Chen Wei didn't wear glasses ____, but he does now. 答案：C 解析：（略） 【拓展题】 1. 'Ago' is used with the ____ tense; 'before' can be used with ____. 答案：A 解析：（略） 2. The correct order: 'She moved to Kunming ____ ____ ____.' 答案：B 解析：（略） 3. In Jinan, the town looked small ____. 答案：C 解析：（略） 考点九：反义词/对应词 tall↔short, fat↔thin, before↔now, same↔different 【基础题】 1. Jam was fat before, but now he is ____. 答案：B 解析：（略） 2. My hair was short, now it is ____. 答案：B 解析：（略） 3. Bella is small now, but she will be ____ in the future. 答案：C 解析：（略） 【提升题】 1. Zhou Kai's eyes were brown before, but now they are the ____ colour. 答案：B 解析：（略） 2. Which pair is WRONG? A. tall–short B. before–now C. fat–tall 答案：C 解析：（略） 3. The twins look ____. They are not the same as before. 答案：B 解析：（略） 【拓展题】 1. 'Different' is the opposite of ____; 'before' is the opposite of ____. 答案：A 解析：（略） 2. 'Thin' is the opposite of '____'; 'short' (height) is the opposite of '____'. 答案：A 解析：（略） 3. In Qingdao, the weather is ____ from that in Kunming. 答案：B 解析：（略） 考点十：综合——描述人物/地方/生活的变化（used to + 过去时 + 比较级综合运用） 【基础题】 1. Our town ____ a lot. There are more shops now. 答案：C 解析：（略） 2. She ____ to be shy, but now she is confident. 答案：B 解析：（略） 3. There ____ a cinema here, but it closed last year. 答案：B 解析：（略） 【提升题】 1. Olivia ____ to have straight hair, but now she ____ curly hair. 答案：A 解析：（略） 2. Which sentence is RIGHT? A. He didn't use to ate meat. B. She used to walked to school. C. They used to live in a village. 答案：C 解析：（略） 3. Chen Wei is ____ taller, ____ stronger and ____ more confident than before. 答案：B 解析：（略） 【拓展题】 1. To describe a big change, we can use 'used to' + ____ + ____ + comparison. 答案：A 解析：（略） 2. In Xiamen, the city has changed ____. There ____ many new roads. 答案：A 解析：（略） 3. The best summary of Unit 2 is: 'We ____ the same; we all ____ with time.' 答案：A 解析：（略） 学科网（北京）股份有限公司 $