Unit 2 Caring for Things Around Us（综合训练）-2026-2027学年老师的半小时

**基本信息** 以10个重点易错考点为核心，构建“基础-提升-拓展”三级训练体系，系统整合词汇、语法与句型，通过解析提炼解题方法，提升语言应用能力与思维品质。 **综合设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |重点考点|10个（含情态动词、祈使句等）|语法规则（如should+动原、祈使句结构）、解题技巧（考点解析）|从单词-短语-句型-语法递进，考点与语法对应，形成“概念-规则-应用”链条| |专项练习|90题（每考点9题）|三级难度区分（基础巩固、提升应用、拓展迁移）|覆盖高频易错点，强化语言知识综合运用，培养学习能力|

Unit 2 Caring for Things Around Us 爱护身边的物品 辽师大版（三起）四年级上册 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。 第一部分：重点单词（中英双语） 英文单词 词性 中文释义 care v./n. 关心；照顾 caring adj. 有爱心的 thing n. 东西；物品 around prep. 在……周围 keep v. 保持 clean adj. 干净的 dirty adj. 脏的 wash v. 洗 water v./n. 浇水；水 plant n. 植物 flower n. 花 tree n. 树 rubbish n. 垃圾 bin n. 垃圾桶 pick v. 捡；摘 turn v. 转动 save v. 节约；拯救 paper n. 纸 reuse v. 重复使用 recycle v. 回收 bottle n. 瓶子 plastic n. 塑料 bag n. 袋子；包 share v. 分享 protect v. 保护 earth n. 地球 classroom n. 教室 towel n. 毛巾 tap n. 水龙头 off adv. 关闭 第二部分：重点短语（中英双语） 英文短语 中文释义 care for / take care of 关心；照顾 look after 照看；照料 keep ... clean 保持……干净 wash hands 洗手 water the plants 给植物浇水 pick up rubbish 捡垃圾 put ... in the bin 把……放进垃圾桶 turn off the tap 关掉水龙头 save water / paper 节约水/纸 reuse paper / bags 重复使用纸/袋子 recycle bottles / cans 回收瓶子/罐子 protect the earth 保护地球 share things 分享物品 clean the classroom 打扫教室 第三部分：重点句型（中英双栏） 英文句型 中文翻译 We should care for things around us. 我们应该爱护身边的物品。 Keep the classroom clean. 保持教室干净。 Don't waste water. 不要浪费水。 Pick up the rubbish. 捡起垃圾。 Put the rubbish in the bin. 把垃圾放进垃圾桶。 Turn off the tap. 关掉水龙头。 Save water, please. 请节约用水。 Reuse the paper. 重复使用纸。 Recycle the bottles. 回收瓶子。 Plant more trees. 种更多的树。 Protect the earth. 保护地球。 Can I help you? 我能帮你吗？ Let's clean the classroom. 我们一起打扫教室吧。 Don't pick the flowers. 不要摘花。 We must keep the park clean. 我们必须保持公园干净。 You shouldn't litter. 你不应该乱扔垃圾。 She is watering the plants. 她正在给植物浇水。 They are picking up rubbish. 他们正在捡垃圾。 Share your things with others. 和别人分享你的东西。 We love our earth. 我们爱我们的地球。 第四部分：重点语法（中英双语） 语法项目 中文说明 should / shouldn't 表建议与责任 should + 动词原形，表示"应该做某事"；shouldn't 表示"不应该" 祈使句（肯定） 动词原形开头，表示命令或劝告：Keep clean. / Wash hands. 祈使句（否定） Don't + 动词原形：Don't waste water. / Don't litter. can / can't 表能力 can + 动词原形：I can help you. / She can't swim. must / mustn't 表义务 must 表示"必须"；mustn't 表示"禁止" 方位介词 in / on / under / into 表示位置或方向：in the bin / on the desk / under the chair 可数/不可数名词 water/paper/rubbish 不可数，不加s；bottle/bag 可数，复数加s 现在进行时 be + doing 表示正在做的事：She is watering the plants. and / but 并列与转折 and 表示并列；but 表示转折：I like it but it's dirty. 核心情态动词对比 can(能) / should(应该) / must(必须)，后均接动词原形 第五部分：10个重点易错考点（中英双语） 考点编号 考点名称（中英） 详细说明 考点一：should / shouldn't 表建议与责任 should + 动原；shouldn't = should not 考点二：祈使句肯定式 Keep.../Wash.../Pick up... 动词原形开头，省略主语 考点三：祈使句否定式 Don't waste / Don't litter Don't + 动原 考点四：can / can't 表能力与许可 can + 动原；否定 can't 考点五：must / mustn't 表义务与禁止 must 必须；mustn't 禁止 考点六：方位介词 in / on / under / into 表示物体位置关系 考点七：可数/不可数名词 water/paper/rubbish 不可数；bottle/bag 可数 考点八：现在进行时 be + doing am/is/are + 动词ing 考点九：and / but 并列与转折 and 并列；but 转折 考点十：核心词拼写 care/recycle/protect/earth/rubbish 重点词汇认读拼写 第六部分：专项练习（每考点9题：基础3+提升3+拓展3） 考点一：should / shouldn't 表建议与责任 【基础题】（选择题） ◇（ ）1. We ______ keep the classroom clean. A. should B. shouldn't C. can D. mustn't ◇（ ）2. You ______ waste water. It's not good. A. should B. shouldn't C. can D. are ◇（ ）3. She ______ care for her little brother. A. should B. shouldn't C. don't D. isn't 【提升题】（选择题） ▷（ ）1. ______ I turn off the tap? Yes, you ______ . A. Should; should B. Can; can C. Do; do D. Are; are ▷（ ）2. They ______ throw rubbish on the ground. A. should B. shouldn't C. can D. are ▷（ ）3. Lily ______ help her mum clean the house. A. should B. shouldn't C. don't D. isn't 【拓展题】（选择题） ★（ ）1. Which sentence is correct? A. You should to save water. B. You should save water. C. You should saving water. D. You should saved water. ★（ ）2. Olivia is ill. She ______ go to school today. A. should B. shouldn't C. can D. is ★（ ）3. We ______ protect the earth. It is our home. A. shouldn't B. don't C. should D. aren't 考点二：祈使句肯定式 Keep.../Wash.../Pick up... 【基础题】（选择题） ◇（ ）1. ______ the classroom clean, please. A. Keeping B. Keep C. Keeps D. To keep ◇（ ）2. ______ your hands before meals. A. Wash B. Washing C. Washes D. To wash ◇（ ）3. ______ up the rubbish on the floor. A. Picking B. Picks C. Pick D. To pick 【提升题】（选择题） ▷（ ）1. ______ the plants every day, Jam. A. Water B. Waters C. Watering D. To water ▷（ ）2. ______ your things in the bag. A. Putting B. Put C. Puts D. To put ▷（ ）3. ______ the tap after you use it. A. Turning off B. Turn off C. Turns off D. To turn off 【拓展题】（选择题） ★（ ）1. Which is a correct imperative sentence? A. You keep quiet. B. Keep quiet. C. Keeping quiet. D. Keeps quiet. ★（ ）2. ______ more trees to make our city green. A. Planting B. Plant C. Plants D. To plant ★（ ）3. ______ the earth. It is our only home. A. Protecting B. Protect C. Protects D. To protect 考点三：祈使句否定式 Don't waste / Don't litter 【基础题】（选择题） ◇（ ）1. ______ waste water. It is precious. A. Not B. Don't C. Doesn't D. No ◇（ ）2. ______ litter in the park. A. Not B. Don't C. Doesn't D. No ◇（ ）3. ______ pick the flowers. They are beautiful. A. Not B. Don't C. Doesn't D. No 【提升题】（选择题） ▷（ ）1. ______ on the grass. It is wet. A. Not walk B. Don't walk C. Doesn't walk D. No walk ▷（ ）2. ______ the tap running. Turn it off. A. Not let B. Don't let C. Doesn't let D. No let ▷（ ）3. ______ too much paper. Save it. A. Not use B. Don't use C. Doesn't use D. No use 【拓展题】（选择题） ★（ ）1. Which is correct? A. Don't to run. B. Don't run. C. Not run. D. Doesn't run. ★（ ）2. ______ your name on the desk. It's not good. A. Don't write B. Not write C. Doesn't write D. No write ★（ ）3. ______ late for school. Be on time. A. Don't be B. Not be C. Doesn't be D. No be 考点四：can / can't 表能力与许可 【基础题】（选择题） ◇（ ）1. I ______ help you clean the classroom. A. am B. can C. do D. does ◇（ ）2. She ______ swim very well. A. am B. can C. do D. does ◇（ ）3. ______ you speak English? Yes, I can. A. Am B. Can C. Do D. Are 【提升题】（选择题） ▷（ ）1. He ______ ride a bike. He is too young. A. can B. can't C. is D. isn't ▷（ ）2. ______ Chen Wei play football? Yes, he can. A. Am B. Can C. Do D. Does ▷（ ）3. Lily ______ dance, but she can sing. A. can B. can't C. is D. isn't 【拓展题】（选择题） ★（ ）1. Which is correct? A. She can to swim. B. She can swim. C. She can swimming. D. She can swims. ★（ ）2. I ______ find my book. Where is it? A. can B. can't C. am D. do ★（ ）3. ______ they help us? Yes, they can. A. Am B. Can C. Do D. Does 考点五：must / mustn't 表义务与禁止 【基础题】（选择题） ◇（ ）1. We ______ keep the park clean. A. can B. must C. do D. are ◇（ ）2. You ______ play with fire. It is dangerous. A. must B. mustn't C. can D. do ◇（ ）3. I ______ go to school today. I am sick. A. must B. mustn't C. can D. do 【提升题】（选择题） ▷（ ）1. Students ______ be on time for class. A. can B. must C. do D. are ▷（ ）2. You ______ run in the hallway. It's dangerous. A. must B. mustn't C. can D. do ▷（ ）3. We ______ protect the environment. A. can B. must C. do D. are 【拓展题】（选择题） ★（ ）1. Which is correct? A. You must to study. B. You must study. C. You must studying. D. You must studies. ★（ ）2. You ______ eat too much candy. It's bad for your teeth. A. must B. mustn't C. can D. do ★（ ）3. She is late. She ______ hurry. A. must B. mustn't C. can D. do 考点六：方位介词 in / on / under / into 【基础题】（选择题） ◇（ ）1. Put the rubbish ______ the bin. A. in B. on C. under D. into ◇（ ）2. The book is ______ the desk. A. in B. on C. under D. into ◇（ ）3. The cat is ______ the chair. A. in B. on C. under D. into 【提升题】（选择题） ▷（ ）1. Pour the water ______ the glass. A. in B. on C. under D. into ▷（ ）2. There is a bird ______ the tree. A. in B. on C. under D. into ▷（ ）3. Don't put your bag ______ the floor. Put it ______ the desk. A. in; on B. on; in C. on; on D. under; in 【拓展题】（选择题） ★（ ）1. The pencil is ______ the box ______ the desk. A. in; on B. on; in C. in; in D. under; on ★（ ）2. Put the seeds ______ the soil. A. in B. on C. under D. into ★（ ）3. The picture is ______ the wall ______ the classroom. A. on; in B. in; on C. under; in D. in; into 考点七：可数/不可数名词 【基础题】（选择题） ◇（ ）1. I need some ______ . Can you give me some? A. water B. waters C. a water D. the water ◇（ ）2. There is some ______ on the desk. A. paper B. papers C. a paper D. the paper ◇（ ）3. Don't throw ______ on the ground. A. rubbish B. rubbishes C. a rubbish D. the rubbish 【提升题】（选择题） ▷（ ）1. How many ______ do you have? A. bottle B. bottles C. water D. paper ▷（ ）2. We should save ______ every day. A. waters B. water C. a water D. the waters ▷（ ）3. There are three ______ in the bag. A. plastic bag B. plastic bags C. plastics bag D. plastic bag 【拓展题】（选择题） ★（ ）1. Which is correct? A. I have many rubbishes. B. I have much rubbish. C. I have many rubbish. D. I have a rubbish. ★（ ）2. Can you give me two ______ of water? A. bottle B. bottles C. water D. papers ★（ ）3. We use too much ______ every day. A. plastics B. plastic C. a plastic D. the plastic 考点八：现在进行时 be + doing 【基础题】（选择题） ◇（ ）1. Look! She ______ the plants. A. water B. waters C. is watering D. watered ◇（ ）2. They ______ up rubbish in the park. A. pick B. picks C. are picking D. picked ◇（ ）3. He ______ his hands now. A. wash B. washes C. is washing D. washed 【提升题】（选择题） ▷（ ）1. Listen! Someone ______ the piano. A. play B. plays C. is playing D. played ▷（ ）2. Don't talk. The baby ______ . A. sleep B. sleeps C. is sleeping D. slept ▷（ ）3. What ______ Olivia ______ now? A. is; do B. does; do C. is; doing D. do; do 【拓展题】（选择题） ★（ ）1. Which sentence is in present continuous tense? A. She waters plants. B. She is watering plants. C. She watered plants. D. She will water plants. ★（ ）2. Jam and Lily ______ the classroom now. A. clean B. cleans C. are cleaning D. cleaned ★（ ）3. Be quiet! The teacher ______ . A. come B. comes C. is coming D. came 考点九：and / but 并列与转折 【基础题】（选择题） ◇（ ）1. I like reading ______ my sister likes drawing. A. and B. but C. or D. so ◇（ ）2. She is young, ______ she is very helpful. A. and B. but C. or D. so ◇（ ）3. Wash your hands ______ keep them clean. A. and B. but C. or D. so 【提升题】（选择题） ▷（ ）1. Pick up the rubbish ______ put it in the bin. A. and B. but C. or D. so ▷（ ）2. It is raining, ______ we can't go out. A. and B. but C. or D. so ▷（ ）3. He is tired ______ he keeps working. A. and B. but C. or D. so 【拓展题】（选择题） ★（ ）1. ______ the earth is beautiful, we should protect it. A. And B. But C. So D. Or ★（ ）2. Save water, ______ we will have no water to drink. A. and B. but C. or D. so ★（ ）3. Reuse things ______ they won't go to waste. A. and B. but C. or D. so 考点十：核心词拼写 【基础题】（选择题） ◇（ ）1. 拼写：c__re (关心) A. care B. carr C. cear D. kare ◇（ ）2. 拼写：r__cycle (回收) A. recicle B. recycle C. reccycle D. resycle ◇（ ）3. 拼写：pr__tect (保护) A. protect B. protact C. protict D. pertect 【提升题】（选择题） ▷（ ）1. 拼写：r__bbish (垃圾) A. rubish B. rubbish C. rubbesh D. rubbis ▷（ ）2. 拼写：__arth (地球) A. earth B. erth C. irth D. urth ▷（ ）3. 拼写：pl__stic (塑料) A. plactic B. plastic C. plestik D. plastec 【拓展题】（选择题） ★（ ）1. Which is spelled correctly? A. recicle B. recycle C. reccycle D. resycle ★（ ）2. 拼写：t__wel (毛巾) A. towel B. towell C. towl D. toweal ★（ ）3. Which is correct for "水龙头"? A. tap B. tapp C. teap D. tope 第七部分：参考答案与解析 考点一：should / shouldn't 基础题： 1. A 解析：我们应该保持教室干净，用should。 2. B 解析：你不应该浪费水，用shouldn't。 3. A 解析：她应该照顾弟弟，用should。 提升题： 1. A 解析：我应该关水龙头吗？是的，你应该。should提问用should回答。 2. B 解析：他们不应该在地上扔垃圾。 3. A 解析：Lily应该帮妈妈打扫房子。 拓展题： 1. B 解析：should后接动词原形save。 2. B 解析：Olivia生病了，今天不应该上学。 3. C 解析：我们应该保护地球。 考点二：祈使句肯定式 基础题： 1. B 解析：祈使句肯定用动词原形Keep开头。 2. A 解析：祈使句用动词原形Wash。 3. C 解析：祈使句用动词原形Pick。 提升题： 1. A 解析：祈使句用动词原形Water给植物浇水。 2. B 解析：祈使句用动词原形Put。 3. B 解析：祈使句用动词原形Turn off。 拓展题： 1. B 解析：祈使句正确形式是动词原形开头：Keep quiet。 2. B 解析：祈使句用动词原形Plant种树。 3. B 解析：祈使句用动词原形Protect保护地球。 考点三：祈使句否定式 基础题： 1. B 解析：祈使句否定用Don't开头。 2. B 解析：祈使句否定用Don't litter。 3. B 解析：祈使句否定用Don't pick。 提升题： 1. B 解析：Don't walk不要走在草地上。 2. B 解析：Don't let不要让水龙头一直流。 3. B 解析：Don't use不要用太多纸。 拓展题： 1. B 解析：祈使句否定正确形式：Don't run。 2. A 解析：Don't write不要在桌上写名字。 3. A 解析：Don't be late不要迟到。 考点四：can / can't 基础题： 1. B 解析：我能帮你打扫教室，用can。 2. B 解析：她能游得很好，用can。 3. B 解析：你会说英语吗？用Can提问。 提升题： 1. B 解析：他太小了不会骑车，用can't。 2. B 解析：陈伟会踢足球吗？用Can提问。 3. B 解析：Lily不会跳舞，但她会唱歌。 拓展题： 1. B 解析：can后接动词原形swim。 2. B 解析：我找不到书了，用can't。 3. B 解析：他们会帮我们吗？用Can提问。 考点五：must / mustn't 基础题： 1. B 解析：我们必须保持公园干净，用must。 2. B 解析：你禁止玩火，用mustn't。 3. B 解析：我今天必须上学（虽然生病，但must强调义务）。 提升题： 1. B 解析：学生必须按时上课，用must。 2. B 解析：你禁止在走廊跑，用mustn't。 3. B 解析：我们必须保护环境，用must。 拓展题： 1. B 解析：must后接动词原形study。 2. B 解析：你禁止吃太多糖，用mustn't。 3. A 解析：她迟到了，必须快点。 考点六：方位介词 基础题： 1. A 解析：把垃圾放进垃圾桶里，用in。 2. B 解析：书在桌子上面，用on。 3. C 解析：猫在椅子下面，用under。 提升题： 1. D 解析：把水倒进玻璃杯里，用into。 2. A 解析：树上有一只鸟，用in the tree。 3. C 解析：别把包放地上，放桌子上。on the floor, on the desk。 拓展题： 1. A 解析：铅笔在桌子上的盒子里。in the box on the desk。 2. A 解析：把种子放进土里，用in。 3. A 解析：画在教室的墙上。on the wall in the classroom。 考点七：可数/不可数名词 基础题： 1. A 解析：water不可数，不加s，用some修饰。 2. A 解析：paper不可数，不加s。 3. A 解析：rubbish不可数，不加s。 提升题： 1. B 解析：How many后接可数名词复数bottles。 2. B 解析：water不可数，用much修饰。 3. B 解析：three plastic bags三个塑料袋。 拓展题： 1. B 解析：rubbish不可数，用much修饰。 2. B 解析：two bottles of water两瓶水。 3. B 解析：plastic不可数，用much修饰。 考点八：现在进行时 基础题： 1. C 解析：Look!提示进行时，is watering。 2. C 解析：正在捡垃圾，are picking。 3. C 解析：now提示进行时，is washing。 提升题： 1. C 解析：Listen!提示进行时，is playing。 2. C 解析：别说话，宝宝在睡觉，is sleeping。 3. C 解析：now提示进行时，is doing。 拓展题： 1. B 解析：is watering是现在进行时。 2. C 解析：now提示进行时，are cleaning。 3. C 解析：Be quiet!提示进行时，is coming。 考点九：and / but 基础题： 1. A 解析：我喜欢阅读，我妹妹喜欢画画，并列关系用and。 2. B 解析：她年轻，但很有帮助，转折用but。 3. A 解析：洗手并保持干净，并列用and。 提升题： 1. A 解析：捡起垃圾并放进垃圾桶，并列用and。 2. D 解析：下雨了，所以我们不能出去，因果用so。 3. B 解析：他累了，但继续工作，转折用but。 拓展题： 1. C 解析：地球很美，所以我们应该保护它，因果用So。 2. C 解析：节约水，否则我们将没有水喝，用or。 3. A 解析：重复使用物品，它们就不会被浪费，并列用and。 考点十：核心词拼写 基础题： 1. A 解析：care关心，拼写正确。 2. B 解析：recycle回收，拼写正确。 3. A 解析：protect保护，拼写正确。 提升题： 1. B 解析：rubbish垃圾，拼写正确。 2. A 解析：earth地球，拼写正确。 3. B 解析：plastic塑料，拼写正确。 拓展题： 1. B 解析：recycle拼写正确。 2. A 解析：towel毛巾，拼写正确。 3. A 解析：tap水龙头，拼写正确。 学科网（北京）股份有限公司 $