期中重点知识总结易错（专项训练）-2026-2027学年外研版（三起）英语四年级上册

**基本信息** 聚焦外研版四年级上册Units1-3期中核心知识，以十大易错考点为纲，通过“知识总览-考点速览-分层训练-详细解析”四维体系，系统梳理语法规则与解题技巧，提升语言应用能力与思维精准度。 **专项设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |重点知识总览|3单元短语/句型/语法|语法规则结构化（如can/may用法对比、like+doing规则）|按“短语-句型-语法”递进，单元主题（运动/家务/天气）关联知识点| |易错考点速览|10大考点|易错点警示（如“can后接原形”“also/too位置差异”）|聚焦学生高频错误，建立语法与语境应用的对应关系| |专项训练|90题（分基础/提升/拓展）|分层训练法（从单一考点到综合应用）|题型由易到难，覆盖不同情境下的语法变式应用| |答案解析|全题解析|错误原因剖析+正确思路引导|结合典例强化语法规则理解，培养逻辑判断能力|

外研版（三起）四年级上册英语 · 期中重点知识总结 + 易错专项训练 2026 外研版（三起）四年级上册英语 期中重点知识总结易错专项训练 Units 1–3 | I love sports · Helping at home · What's the weather like? 📚 第一部分：期中重点知识总览 ◎ 一、重点短语归纳（Units 1–3） 🔵 Unit 1 I love sports 重点短语 ◆ play sports 做运动 ◆ play ping-pong 打乒乓球 ◆ play basketball 打篮球 ◆ play volleyball 打排球 ◆ play football 踢足球 ◆ run fast 跑得快 ◆ jump high 跳得高 ◆ jump far 跳得远 ◆ try your best 尽最大努力 ◆ give up 放弃 ◆ at first 起初 ◆ keep running 持续跑步 🟢 Unit 2 Helping at home 重点短语 ◆ do chores 做家务 ◆ wash the dishes 洗碗 ◆ wash the clothes 洗衣服 ◆ sweep the floor 扫地 ◆ make the bed 铺床 ◆ clean the table 撤桌子 ◆ clean the room 打扫房间 ◆ feed the dog 喂狗 ◆ take out the rubbish 倒垃圾 ◆ tidy your room 整理房间 ◆ water the vegetables 给蔬菜浇水 ◆ collect the eggs 收集鸡蛋 ◆ pick the apples 摘苹果 ◆ cut the grass 割草 ◆ take care of 照顾 ◆ warm up 使变暖 ◆ good job / well done 干得好 ◆ no problem 没问题 🏥 Unit 3 What's the weather like? 重点短语 ◆ go out 出去 ◆ go home 回家 ◆ come up （太阳等）升起 ◆ come down 落下 ◆ turn on 打开（电视等） ◆ weather report 天气预报 ◆ have fun 玩得开心 ◆ enjoy doing 喜欢做…… ◆ put on a coat 穿上外套 ◆ a children's home 一所儿童之家 ◆ real snow 真正的雪 ◆ a big surprise 一个大惊喜 ◆ keep a diary 写日记 ◆ two days later 两天后 ◎ 二、重点句型归纳（Units 1–3） 🔵 Unit 1 核心句型 — — Do you like playing sports? — Yes, I do. / No, I don't. — — Can you jump high? — Yes, I can. / No, I can't. — I can play ping-pong. She can run fast. — He can't swim, but he can learn. — Try your best! Don't give up! — I often play basketball after school. 🟢 Unit 2 核心句型 — — Can you help me wash the dishes? — Sure! / Yes, I can. — — May I play outside? — Yes, you may. / No, you may not. — I can sweep the floor and tidy my room. — Mum is tired. I take care of Dad. — Good job! / Well done! / No problem! — I am happy to help my family. — Let's work together. 🏥 Unit 3 核心句型 — — What's the weather like? — It's sunny and warm. — — Is it cold or hot? — It's cold. — In the morning, it's cloudy. In the afternoon, it's sunny. — — Do I need my coat? — Yes, you do. / No, you don't. — I want to see real snow in Beijing. — The wind blows hard. It's windy and cold. — We enjoy playing in the snow. — Come on, let's turn on the TV. ◎ 三、重点语法归纳（Units 1–3） ① 情态动词 can —— 表示能力或请求 ⚠ 肯定句：主语 + can + 动词原形 → I can jump far. ⚠ 否定句：主语 + can't + 动词原形 → She can't swim. ⚠ 一般疑问：Can + 主语 + 动词原形? → Can you help me? ⚠ ⚠ can 后永远加动词原形，不加 s/es/ing/ed ⚠ ⚠ can 不受人称影响：I can / He can / They can ② 情态动词 may —— 表示请求许可（比 can 更客气） ⚠ 结构：May I + 动词原形? → May I play outside? ⚠ 肯定回答：Yes, you may. / Sure. / Of course. ⚠ 否定回答：No, you may not. / I'm afraid you can't. ⚠ ⚠ may 和 can 区别：may 气多更客气；can 表能力时不能互换 ③ like / enjoy + doing —— 表示喜好做某事 ⚠ 结构：主语 + like(s) + doing → I like swimming. ⚠ 疑问：Do/Does + 主语 + like + doing? → Do you like running? ⚠ 回答：Yes, I do. / No, I don't. → Yes, she does. / No, she doesn't. ⚠ enjoy + doing → We enjoy playing in the snow. ⚠ ⚠ like 后接动名词 (doing)，不接动词原形 ④ 一般现在时三单变化 ⚠ 主语 he/she/单个人名 + 动词加 s/es ⚠ help → helps make → makes wash → washes go → goes ⚠ have → has (特殊) do → does (特殊) ⚠ Olivia often tidies her room. Chen Wei plays football every day. ⚠ ⚠ 否定句用 doesn't + 动词原形：She doesn't like rain. ⑤ 频度副词 often / usually / sometimes ⚠ 位置：be动词后；实义动词前 ⚠ He is often busy. (be 后) She usually helps me. (动词前) ⚠ Sometimes I play ping-pong after school. (also 可放句首) ⚠ ⚠ often ≠ sometimes：often=经常, sometimes=有时 ⑥ 天气句型 What's the weather like? ⚠ 疑问：What's the weather like? = How is the weather? ⚠ 回答：It's + 天气形容词 → It's sunny / rainy / windy / cold. ⚠ 选择疑问：Is it cold or hot? → It's cold. ⚠ 持续状态：It's raining. The wind blows hard. ⚠ ⚠ 回答用 It's ，不用 Yes/No；or 问题选一项回答 ⑦ need to / must —— 需要或必须 ⚠ need to + 动原：I need to finish my homework. ⚠ must + 动原：You must be careful. ⚠ 疑问：Do/Does + 主语 + need to...? → Do I need my coat? ⚠ ⚠ need 作实义动词时有人称变化：She needs to rest. ⑧ help 的用法与 also/too ⚠ help (sb) + 动原：Can you help me sweep the floor? ⚠ 三单 helps：Jam helps his mum cook dinner. ⚠ also 放实义动词前：I also like basketball. ⚠ too 放句末：She can swim, too. ⚠ ⚠ also 不放句末；too 前面有逗号 🎯 第二部分：十大易错考点速览 🔵 考点一：can 后接动词原形（不加 s/ing/ed） 🟢 考点二：can 与 may 的区分（能力 vs 许可） 🟠 考点三：like/enjoy + doing（不接原形） 🏥 考点四：一般现在时三单动词加 s/es 🔴 考点五：频度副词 often/usually/sometimes 位置 💨 考点六：What's the weather like? 的回答用 It's + 形容词 ❤️ 考点七：选择疑问句(or)的回答方式 ⚡ 考点八：need to/must 后接动词原形 💪 考点九：help + 动原; 三单 helps 🟢 考点十：also 与 too 的区分与用法 ✏️ 第三部分：易错考点专项训练（90题 全选择题） 🔵 考点一：can 后接动词原形（不加 s/ing/ed） 【要点】can 是情态动词，后接动词原形；can't 后也接原形；can 不受人称影响。 ◎ 基础题 ◇ （ ）1. Olivia _____ jump high. She is good at it. A. can B. cans C. can to ◇ （ ）2. — Can Chen Wei sweep the floor? — Yes, he _____. A. can B. is C. does ◇ （ ）3. I _____ play basketball after school every day. A. can B. am C. do ▷ 提升题 ▷ （ ）1. Lily _____ swim very fast. She is a good swimmer. A. can B. cans C. can to ▷ （ ）2. — Can your brother run fast? — No, he _____. A. can B. can't C. don't ▷ （ ）3. Zhang Hao _____ help his mum cook dinner. He is helpful. A. can B. is C. does ★ 拓展题 ★ （ ）1. Jam _____ play football, but he _____ play volleyball. A. can; can't B. can't; can C. can; can ★ （ ）2. — What can Bella do at home? — _____ can tidy the room. A. Her B. She C. Hers ★ （ ）3. Zhou Kai and Jam _____ both play ping-pong well. A. can B. can't C. is 🟢 考点二：can 与 may 的区分（能力 vs 许可） 【要点】can 表能力（能不能）；may 表请求许可（可以不可以），气多更客气。 ◎ 基础题 ◇ （ ）1. — _____ I play outside, Mum? — Yes, you may. A. Can B. May C. Do ◇ （ ）2. — Can you feed the dog? — _____. A. Yes, you may B. Sure C. Yes, I may ◇ （ ）3. — May I go home now? — _____. A. Yes, you can B. No, you may not C. No, I can't ▷ 提升题 ▷ （ ）1. — _____ you help me wash the dishes? — Of course I can. A. May B. Can C. Do ▷ （ ）2. Lily is polite. She always says — _____ I come in?— A. Can B. May C. Do ▷ （ ）3. — What does —May I help you?— mean? — It means —_____.— A. I can help you B. Can you help me? C. Do you need help? ★ 拓展题 ★ （ ）1. Olivia can run fast. She _____ run very fast. A. may B. can C. must ★ （ ）2. — May I use your book, Zhang Hao? — _____. A. Yes, you can B. Sure, here you are C. Yes, I can ★ （ ）3. Chen Wei is tired. _____ he play football today? — No, he can't. A. May B. Can C. Does 🟠 考点三：like / enjoy + doing（不接原形） 【要点】like + doing 表示喜欢做某事；enjoy + doing 表示享受做某事；三单用 likes、enjoys。 ◎ 基础题 ◇ （ ）1. Jam likes _____ ping-pong after school. A. play B. playing C. plays ◇ （ ）2. — Do you like _____? — Yes, I do. A. swim B. swimming C. swims ◇ （ ）3. Olivia _____ reading books in the library. A. like B. likes C. is like ▷ 提升题 ▷ （ ）1. Chen Wei and Zhang Hao like _____ football together. A. play B. playing C. plays ▷ （ ）2. — Does Lily like jumping rope? — _____. A. Yes, she like B. Yes, she does C. Yes, she do ▷ （ ）3. Bella enjoys _____ in the park on sunny days. A. run B. runs C. running ★ 拓展题 ★ （ ）1. They all like _____ sports, and Zhou Kai likes _____ basketball best. A. play; play B. playing; play C. playing; playing ★ （ ）2. — What does Olivia enjoy doing? — She enjoys _____ diaries. A. keep B. keeps C. keeping ★ （ ）3. Jam doesn't like _____ in the rain. He hates rainy days. A. run B. runs C. running 🏥 考点四：一般现在时三单动词加 s/es 【要点】主语 he/she/单个人名 + 动词加 s/es；have → has；go → goes；wash → washes。 ◎ 基础题 ◇ （ ）1. Lily often _____ her room on Sundays. A. tidy B. tidies C. tidying ◇ （ ）2. Chen Wei _____ basketball every afternoon. A. play B. plays C. playing ◇ （ ）3. Olivia _____ a happy family in Wuhan. A. have B. has C. is ▷ 提升题 ▷ （ ）1. Jam usually _____ the dishes after dinner. A. wash B. washes C. washing ▷ （ ）2. Zhang Hao's mum _____ in a hospital. She is a doctor. A. work B. works C. working ▷ （ ）3. Bella always _____ up early in the morning. A. get B. gets C. getting ★ 拓展题 ★ （ ）1. Zhou Kai's dad _____ to work by bus every day. A. go B. goes C. going ★ （ ）2. Lily and Olivia _____ games together. They _____ a lot of fun. A. play; have B. plays; has C. play; has ★ （ ）3. Chen Wei _____ his dog every morning. His dog _____ him too. A. feed; like B. feeds; likes C. feeds; like 🔴 考点五：频度副词 often/usually/sometimes 位置 【要点】often/usually 放实义动词前；sometimes 可放句首/句中/句末；be 动词后用 often/usually/sometimes + 形容词。 ◎ 基础题 ◇ （ ）1. Jam _____ plays football after school. A. often B. is often C. often is ◇ （ ）2. Lily is _____ late for school. She is a good student. A. usually B. never C. sometimes ◇ （ ）3. They _____ go to the park on weekends. A. often B. are often C. often are ▷ 提升题 ▷ （ ）1. Chen Wei _____ helps his mum at home. He is helpful. A. usually B. is usually C. usually is ▷ （ ）2. — How often does Bella tidy her room? — She _____ tidies it. A. often B. is often C. are often ▷ （ ）3. Olivia is _____ happy when she plays with Jam. A. usually B. is usually C. usually is ★ 拓展题 ★ （ ）1. Zhang Hao and Zhou Kai _____ play ping-pong together after class. A. often B. are often C. often are ★ （ ）2. — Does it rain in Kunming? — Yes, but it _____ rains heavily. A. often B. never C. sometimes ★ （ ）3. Lily _____ reads books before bed. Reading is her habit. A. always B. is always C. always is 💨 考点六：What's the weather like? 的回答用 It's + 形容词 【要点】What's the weather like? = How is the weather?；回答用 It's + 天气形容词（sunny/rainy/windy/cold/warm）。 ◎ 基础题 ◇ （ ）1. — What's the weather like in Qingdao? — _____ sunny and warm. A. It's B. Its C. It is not ◇ （ ）2. — How is the weather today? — _____ rainy. A. It B. It's C. Is it ◇ （ ）3. In Xiamen, the weather is _____ in winter. It's not very cold. A. warm B. windy C. snowy ▷ 提升题 ▷ （ ）1. — What's the weather like in Jinan today? — _____ cloudy and windy. A. It's B. Its C. It ▷ （ ）2. The wind blows hard. It's _____ today. A. wind B. windy C. winds ▷ （ ）3. Look at the clouds! It's going to _____ soon. A. rain B. rainy C. rains ★ 拓展题 ★ （ ）1. — What's the weather like in Kunming in spring? — _____ sunny and warm. A. It's B. Its C. It ★ （ ）2. In the morning it's foggy. At noon it becomes _____. A. sun B. sunny C. suny ★ （ ）3. — Is it snowy in Wuhan? — No, it _____ snows there in winter. A. often B. usually C. never ❤️ 考点七：选择疑问句(or)的回答方式 【要点】用 or 连接两个选项；回答时不用 Yes/No，直接选一项回答。 ◎ 基础题 ◇ （ ）1. — Is it cold or hot in Wuhan? — _____. A. Yes, it is B. It's cold C. No, it isn't ◇ （ ）2. — Do you like sunny or rainy days? — _____. A. Yes, I do B. Sunny days C. No, I don't ◇ （ ）3. — Can you play football or basketball? — _____. A. Yes, I can B. Football C. No, I can't ▷ 提升题 ▷ （ ）1. — Is it windy or cloudy today? — _____. The clouds are thick. A. It's cloudy B. Yes, it is C. No, it isn't ▷ （ ）2. — Does it rain or snow in Xiamen? — _____. It's warm there. A. It rains B. It snows C. It doesn't rain or snow ▷ （ ）3. — May I go out or stay at home? — _____. A. Yes, you may B. You may go out C. No, you may not ★ 拓展题 ★ （ ）1. — Is Olivia's coat blue or red? — _____. She likes blue. A. It's blue B. Yes, it is C. No, it isn't ★ （ ）2. — Do they need coats or umbrellas? — _____. It's rainy. A. They need umbrellas B. Yes, they do C. No, they don't ★ （ ）3. — Is Chen Wei happy or sad? — _____. He can play outside. A. He is happy B. Yes, he is C. No, he isn't ⚡ 考点八：need to / must 后接动词原形 【要点】need to + 动原；must + 动原；need 作实义动词时三单用 needs to。 ◎ 基础题 ◇ （ ）1. You _____ be careful when you cross the road. A. must B. must to C. musts ◇ （ ）2. I _____ to finish my homework before dinner. A. need B. needs C. need to ◇ （ ）3. — Do I need my coat today? — Yes, you _____. A. do B. need C. must ▷ 提升题 ▷ （ ）1. Olivia _____ to take an umbrella. It's rainy in Wuhan. A. need B. needs C. need to ▷ （ ）2. Jam, you _____ tidy your room before playing outside. A. must B. must to C. musts ▷ （ ）3. — Does Lily need to feed the dog? — Yes, she _____. A. need B. does C. needs ★ 拓展题 ★ （ ）1. Chen Wei and Zhang Hao _____ to sweep the floor. Their room is dirty. A. need B. needs C. need to ★ （ ）2. You _____ play with fire. It's very dangerous. A. mustn't B. needn't C. don't need ★ （ ）3. Bella is ill. She _____ to see a doctor. A. need B. needs C. needs to 💪 考点九：help + 动词原形；三单 helps 【要点】help (sb) + 动词原形；三单用 helps；can help + 原形。 ◎ 基础题 ◇ （ ）1. Can you help me _____ the floor? A. sweep B. sweeps C. sweeping ◇ （ ）2. Lily often helps her mum _____ the dishes. A. wash B. washes C. washing ◇ （ ）3. Jam is helpful. He _____ his dad tidy the room. A. help B. helps C. helping ▷ 提升题 ▷ （ ）1. Chen Wei _____ his little sister do homework every day. A. help B. helps C. helping ▷ （ ）2. — Can Olivia help you cook dinner? — Yes, she _____. A. can B. can help C. helps ▷ （ ）3. Bella and Lily help their mum _____ the vegetables. A. water B. waters C. watering ★ 拓展题 ★ （ ）1. Zhang Hao's neighbours are kind. They often help his family _____ chores. A. do B. does C. doing ★ （ ）2. Zhou Kai _____ his grandma feed the chickens on the farm. A. help B. helps C. helping ★ （ ）3. — Does Jam help his friends? — Yes, he always _____ them. A. help B. helps C. helping 🟢 考点十：also 与 too 的区分与用法 【要点】also 放实义动词前，be 动词/情态动词后；too 放句末，前面有逗号。 ◎ 基础题 ◇ （ ）1. Jam likes football. He _____ likes basketball. A. too B. also C. to ◇ （ ）2. Lily can swim, and she can dance, _____. A. also B. too C. to ◇ （ ）3. Chen Wei is tall. He is _____ strong. A. too B. also C. to ▷ 提升题 ▷ （ ）1. Olivia can sing. She _____ can play the piano. A. too B. also C. to ▷ （ ）2. It is rainy in Wuhan, and it is cold, _____. A. also B. too C. to ▷ （ ）3. Zhang Hao and Zhou Kai are friends. They _____ play together often. A. too B. also C. to ★ 拓展题 ★ （ ）1. Bella likes reading. She _____ enjoys writing stories. She is good at both. A. too B. also C. to ★ （ ）2. In Xiamen, it is warm in winter. It is sunny, _____. A. also B. too C. to ★ （ ）3. Lily can sweep the floor. She can _____ tidy the room. A. too B. also C. to ✅ 第四部分：参考答案与详细解析 🔵 考点一：can 后接动词原形 — 参考答案与解析 ▸ 基础题 1：选 A 【解析】can 后接动词原形 jump，不加 s。cans 是错误形式。 ▸ 基础题 2：选 A 【解析】Can 引导的一般疑问句，肯定回答用 Yes, he can. ▸ 基础题 3：选 A 【解析】I can play...我能打篮球。can 后用原形 play。 ▸ 提升题 1：选 A 【解析】Lily 是三单，但 can 不变形，用 can 而不是 cans。 ▸ 提升题 2：选 B 【解析】否定回答用 No, he can't. can't = cannot。 ▸ 提升题 3：选 A 【解析】Zhang Hao 是三单，但 can 不变，用 can help。 ▸ 拓展题 1：选 B 【解析】前半句否定用 can't，后半句肯定用 can。意思：Jam不会踢足球，但会打排球。 ▸ 拓展题 2：选 B 【解析】回答 What can Bella do? 用 She can...，She 是主格作主语。 ▸ 拓展题 3：选 A 【解析】Zhou Kai and Jam 是复数主语，用 can，不加 s。 🟢 考点二：can 与 may 的区分 — 参考答案与解析 ▸ 基础题 1：选 B 【解析】请求许可用 May I...?气多更客气。回答 Yes, you may. ▸ 基础题 2：选 B 【解析】回答 Can you...? 用 Sure / Yes, I can. 表示愿意帮忙。 ▸ 基础题 3：选 B 【解析】回答 May I...? 用 No, you may not. 或 I'm afraid you can't. ▸ 提升题 1：选 B 【解析】求人帮忙用 Can you help me...?不用 May。 ▸ 提升题 2：选 B 【解析】示意请求进入用 May I come in?比 Can 更客气。 ▸ 提升题 3：选 C 【解析】May I help you? 意思是“你需要帮助吗？”相当于 Do you need help? ▸ 拓展题 1：选 B 【解析】能力描述用 can，She can run very fast. 不用 may。 ▸ 拓展题 2：选 B 【解析】同意别人借用物品用 Sure / Of course. 回答应该大方便。 ▸ 拓展题 3：选 B 【解析】问能力用 Can he play...?不用 May。May 问的是许可。 🟠 考点三：like / enjoy + doing — 参考答案与解析 ▸ 基础题 1：选 B 【解析】like + doing，playing 是动名词形式。Jam likes playing ping-pong. ▸ 基础题 2：选 B 【解析】Do you like + doing? 用 swimming，不用 swim 原形。 ▸ 基础题 3：选 B 【解析】Olivia 是三单，like 变 likes。likes reading 喜欢读书。 ▸ 提升题 1：选 B 【解析】复数主语 + like + doing，用 playing，不用 plays。 ▸ 提升题 2：选 B 【解析】Does she...? 肯定回答 Yes, she does. doesn't 用 does 不用 do。 ▸ 提升题 3：选 C 【解析】enjoy + doing，用 running。enjoys running 喜欢跑步。 ▸ 拓展题 1：选 C 【解析】like playing sports 喜欢做运动；likes playing basketball 喜欢打篮球。两个空都用 doing。 ▸ 拓展题 2：选 C 【解析】enjoy + doing，用 keeping。enjoys keeping diaries 喜欢写日记。 ▸ 拓展题 3：选 C 【解析】doesn't like + doing，用 running。否定句也用 doing。 🏥 考点四：三单动词加 s/es — 参考答案与解析 ▸ 基础题 1：选 B 【解析】Lily 是三单，tidy 变形加 ies → tidies。 ▸ 基础题 2：选 B 【解析】Chen Wei 是三单，play 加 s → plays。 ▸ 基础题 3：选 B 【解析】Olivia 是三单，have 变 has。has a happy family 有一个幸福的家庭。 ▸ 提升题 1：选 B 【解析】Jam 是三单，wash 加 es → washes。 ▸ 提升题 2：选 B 【解析】Zhang Hao's mum 是三单，work 加 s → works。 ▸ 提升题 3：选 B 【解析】Bella 是三单，get up 加 s → gets up。 ▸ 拓展题 1：选 B 【解析】Zhou Kai's dad 是三单，go 加 es → goes。 ▸ 拓展题 2：选 A 【解析】Lily and Olivia 是复数用 play 和 have。三单才用 plays/has。 ▸ 拓展题 3：选 B 【解析】Chen Wei 是三单用 feeds；His dog 是三单用 likes。 🔴 考点五：频度副词的位置 — 参考答案与解析 ▸ 基础题 1：选 A 【解析】often 放实义动词前：often plays。不用 is often。 ▸ 基础题 2：选 B 【解析】Lily 从不迟到用 never。never late 从不迟到。usually 和 sometimes 不符合语境。 ▸ 基础题 3：选 A 【解析】复数主语 + often + 动原：often go。不用 are often。 ▸ 提升题 1：选 A 【解析】Chen Wei 是三单，但 often 放动词前：usually helps。 ▸ 提升题 2：选 A 【解析】回答 How often 用 often。She often tidies it. 不用 is often。 ▸ 提升题 3：选 B 【解析】is 后用 usually：is usually happy。usually 放 be 动词后。 ▸ 拓展题 1：选 A 【解析】复数主语 + often + 动原：often play。不用 are often。 ▸ 拓展题 2：选 C 【解析】根据上下文“Yes, but…”表示有时下雨但不大，用 sometimes。 ▸ 拓展题 3：选 A 【解析】Lily 是三单，is 后用 always：is always happy。always 放 be 后。 💨 考点六：天气句型 What's the weather like? — 参考答案与解析 ▸ 基础题 1：选 A 【解析】回答用 It's + 形容词。It's sunny and warm. 不用 Its(它的)。 ▸ 基础题 2：选 B 【解析】回答 How is the weather? 用 It's rainy. 不用 It rainy。 ▸ 基础题 3：选 A 【解析】描述天气用形容词 warm。后文说不冷，故选 warm。 ▸ 提升题 1：选 A 【解析】回答 What's the weather like? 用 It's cloudy and windy. Its 是名词“它的”。 ▸ 提升题 2：选 B 【解析】描述天气用形容词 windy。wind 是名词，windy 是形容词。 ▸ 提升题 3：选 A 【解析】be going to + 动原：is going to rain. 即将下雨。用 rain 原形。 ▸ 拓展题 1：选 A 【解析】回答 用 It's 形容词。Its 是“它的”，不是 It is 缩写。 ▸ 拓展题 2：选 B 【解析】变化用形容词：becomes sunny。sunny 是形容词，sun 是名词。 ▸ 拓展题 3：选 C 【解析】根据上下文“No”表示武汉从不下雪，用 never。 ❤️ 考点七：选择疑问句(or)的回答 — 参考答案与解析 ▸ 基础题 1：选 B 【解析】选择疑问句用 or 连接，回答不用 Yes/No，直接选一项：It's cold. ▸ 基础题 2：选 B 【解析】回答 Do you like...? 用 Sunny days. 直接选一项，不用 Yes/No。 ▸ 基础题 3：选 B 【解析】回答 Can you...? 用 Football. 直接回答会哪个，不用 Yes/No。 ▸ 提升题 1：选 A 【解析】根据后文“clouds are thick”选 It's cloudy. 不用 Yes/No。 ▸ 提升题 2：选 C 【解析】根据后文“it's warm”选 It doesn't rain or snow. 武汉不下雨也不下雪。 ▸ 提升题 3：选 B 【解析】回答 May I... or...? 用 You may go out. 直接选一项。 ▸ 拓展题 1：选 A 【解析】根据后文“She likes blue”选 It's blue. 不用 Yes/No。 ▸ 拓展题 2：选 A 【解析】根据后文“rainy”选 They need umbrellas. 不用 Yes/No。 ▸ 拓展题 3：选 A 【解析】根据后文“He can play outside”选 He is happy. 不用 Yes/No。 ⚡ 考点八：need to / must 后接原形 — 参考答案与解析 ▸ 基础题 1：选 A 【解析】must + 动原：must be careful. must 后不加 to，不加 s。 ▸ 基础题 2：选 C 【解析】need to + 动原：I need to finish... 不用 need 原形。 ▸ 基础题 3：选 A 【解析】回答 Do I need...? 用 Yes, you do. 用 do 回答。 ▸ 提升题 1：选 B 【解析】Olivia 是三单，need 作实义动词加 s → needs to take. ▸ 提升题 2：选 A 【解析】must + 动原：You must tidy... must 后不加 to。 ▸ 提升题 3：选 B 【解析】回答 Does she need to...? 用 Yes, she does. 用 does 回答。 ▸ 拓展题 1：选 A 【解析】复数主语 + need + to + 动原：need to sweep。不用 needs。 ▸ 拓展题 2：选 A 【解析】禁止用 mustn't。mustn't play with fire 禁止玩火。needn't 是不需要。 ▸ 拓展题 3：选 C 【解析】Bella 是三单，need to + 动原：needs to see a doctor. 💪 考点九：help + 动原; 三单 helps — 参考答案与解析 ▸ 基础题 1：选 A 【解析】help sb + 动原：help me sweep. 不用 sweeps 或 sweeping。 ▸ 基础题 2：选 A 【解析】help sb + 动原：helps her mum wash. 不用 washes。 ▸ 基础题 3：选 B 【解析】He 是三单，help 变 helps。helps his dad tidy... ▸ 提升题 1：选 B 【解析】Chen Wei 是三单，help 变 helps。helps his sister do... ▸ 提升题 2：选 A 【解析】回答 Can she help you cook? 用 Yes, she can. can 后用原形。 ▸ 提升题 3：选 A 【解析】复数主语 + help + 原形：help their mum water... 不用 waters。 ▸ 拓展题 1：选 A 【解析】复数主语 + help + 原形：help do chores. 不用 does 或 doing。 ▸ 拓展题 2：选 B 【解析】Zhou Kai 是三单，help 变 helps。helps his grandma feed... ▸ 拓展题 3：选 B 【解析】回答 Does he help...? 用 Yes, he helps. 三单用 helps。 🟢 考点十：also 与 too 的区分 — 参考答案与解析 ▸ 基础题 1：选 B 【解析】also 放实义动词前：also likes. too 放句末。 ▸ 基础题 2：选 B 【解析】too 放句末，前面用逗号：she can dance, too. ▸ 基础题 3：选 B 【解析】also 放实义动词前：is also strong. too 放句末。 ▸ 提升题 1：选 B 【解析】also 放实义动词前：also can play. too 放句末。 ▸ 提升题 2：选 B 【解析】too 放句末：it is cold, too. also 不放句末。 ▸ 提升题 3：选 B 【解析】also 放实义动词前：also play together. too 放句末。 ▸ 拓展题 1：选 B 【解析】also 放实义动词前：also enjoys. too 放句末。 ▸ 拓展题 2：选 B 【解析】too 放句末：it is sunny, too. also 不放句末。 ▸ 拓展题 3：选 B 【解析】also 放实义动词前：can also tidy. too 放句末。 ✦ FLTRP外研版四年级上册英语 · 期中易错专项训练 · 完 · 祝同学们取得好成绩！ ✦ — 第 页 — 学科网（北京）股份有限公司 $