Unit 4 Plants around us（易错题专项训练・语法提升）英语人教PEP版三年级上册（新教材）

Unit4 Plants around us 专题02 语法提升·易错题专项训练 · 内容导航 · 1. Do引导一般疑问句肯、否变换（Do you…句型完整转换） 2. like后名词单复数规则（可数复数/不可数名词用法） 3. can情态动词完整句型变换（肯定、否定、一般疑问） 4. 提建议句式同义改写（We can… / Let's…互换） 5. 人称句型互换（I/we人称转换，助动词do匹配） 6.综合训练 高频易错点、易错点提示、小练笔、答题点拨 易错精讲 Do引导一般疑问句完整变换规则高频易错点01 Do是助动词，后必须加动词原形，无三单变化；否定直接加not=don't。 1. 基础肯定疑问句 结构：Do +主语 + like +名词？ 例：Do you like apples? 2. 否定句变换 结构：主语 + don't + like +名词 例：I don't like bananas. 3. 一般疑问句问答 肯定回答：Yes, 主语+do. 否定回答：No, 主语+don't. 例：—Do you like grapes? —Yes, I do. / No, I don't. 易错点提示 do后面动词永远原形like；不能写do likes；回答不能用Yes, I like。 小练笔 01 一、用do / don't填空 1. I ____ like oranges. I like apples. 2. —____ you like grapes? —Yes, I ____. 3. We ____ like fresh air. 4. They ____ like grass. 5. —____ you like the farm? —No, I ____. 二、单项选择 ( )1. I ____ like bananas. A. don't B. do nots C. doesn't ( )2. —Do you like flowers? —Yes, you ____. A. don't B. do C. are ( )3. —____ you like trees? A. Do B. Are C. Is like句型名词单复数变形规则高频易错点02 表达喜欢事物，like后面名词区分可数、不可数。 1. 可数名词（apple/banana/grape/tree/flower）：表一类事物必须用复数。 例：I like apples. We like flowers. 2. 不可数名词（air/water/grass/sun）：没有复数，直接原形。 例：I like fresh air. Plants need water. 易错点提示 like后面可数名词不能单用单数；不可数名词永远不加‑s。 小练笔 02 一、用所给词适当形式填空 1. I like ____ (apple). 2. We like ____ (flower). 3. Plants need ____ (water). 4. They like ____ (grape). 5. I like fresh ____ (air). 二、单项选择 ( )1. She likes ____. A. banana B. bananas C. bananaes ( )2. We like ____. A. grass B. grasses C. a grass can情态动词完整句型变换高频易错点03 can情态动词，后面永远接动词原形；否定can not=can't；疑问can提前。 1. 肯定陈述句：主语 + can + 动词原形 例：We can water the flowers. 2. 否定句变换：主语 + can't +动词原形 例：We can't pick flowers. 3. 一般疑问句变换：Can +主语 +动词原形？ 肯定回答：Yes, 主语 can. 否定回答：No, 主语 can't. 例：—Can we plant new trees? —Yes, we can. 易错点提示 can无人称变化，所有人称后面动词原形，不能加‑s。 小练笔 03 按要求改写 1. We can water the flowers.（改为否定句） ________________________________ 2. We can plant new trees.（改为一般疑问句） ________________________________ 3. Can we help plants?（做肯定回答） ________________________________ 4. Can we pick flowers?（做否定回答） ________________________________ 5. I can help plants.（改为We作主语） ________________________________ 提建议句式同义改写高频易错点04 We can… 和Let's…可以同义替换，用于写作丰富句式。 1. We can + 动词原形 = Let's +动词原形 例：We can water the flowers. = Let's water the flowers. 2. 否定含义改写：We can't… = Don't … 例：We can't pick flowers. = Don't pick flowers. 易错点提示 改写全部保持动词原形，不要变形。 小练笔 04 同义改写，句意不变 1. We can plant new trees. ________________________________ 2. We can water the flowers. ________________________________ 3. We can't pick flowers. ________________________________ 4. Let's help plants. ________________________________ 5. Don't cut trees. ________________________________ 人称句型互换高频易错点05 主语I↔We互相转换，同步调整助动词，can无人称变化不用改动。 1. I变We：I can water flowers. → We can water flowers. 2. We变I：We like apples. → I like apples. 易错点提示 只有主语发生变化，like/can后面动词保持原形。 小练笔 05 按要求改写 1. I like bananas.（改为We作主语） ________________________________ 2. We can help plants.（改为I作主语） ________________________________ 3. I don't like grapes.（改为We作主语） ________________________________ 4. We like oranges.（改为I作主语） ________________________________ 5. I can plant trees.（改为We作主语） ________________________________ 综合训练 一、选词填空 do, don't, can, can't 1. I ____(like) ____(grape). I ____ like oranges. 2. We ____ water the flowers, we ____ pick flowers. 3. —____ you like apples? —Yes, I ____. We ____ plant trees. 4. Plants need ____(water). 二、单项选择 ( )1. —____ you like bananas? —Yes, you ____. A. Can; can B. Are; are C. Do; do ( )2. I ____ like grapes. I like apples. A. don't B. do C. can ( )3. We ____ water the flowers. It's good for plants. A. can B. can't C. are ( )4. —____ we plant new trees? —Yes, we can. A. Do B. Can C. Are ( )5. —Do you like flowers? —____ A. No, I do B. Yes, I like C. Yes, I do ( )6. We ____ pick flowers in the park. A. aren't B. can C. can't ( )7. I like ____. A. bananas B. banana C. bananaes ( )8. Plants need ____. A. water B. waters C. a water ( )9. —Can we help plants? —No, we ____. A. can B. can't C. don't ( )10. We ____ like fresh air. A. do B. are C. is 三、句型转换 1. I like oranges.（改为否定句） ____________________________________ 2. We can water the flowers.（改为一般疑问句） ____________________________________ 3. Do you like grapes?（做否定回答） ____________________________________ 4. We like apples.（改为I作主语） ____________________________________ 5. We can plant new trees.（改为I作主语） ____________________________________ 6. Can we pick flowers?（否定回答） ____________________________________ 四、短文选词填空like, don't like, can, can't, apples, water, air, flowers Hello, I'm Amy. I ____ bananas, I ____ grapes. Plants need sun, ____ and ____. We ____ water the ____. We ____ pick flowers. 五、单句改错 1. I like grape. ________ 2. We can waters flowers. ________ 3. —Do you like apples? —Yes, I like. ________ 4. Are you like bananas? ________ 5. We can't picks flowers. ________ 六、同义句式改写 1. We can water the flowers. ____________________________________ 2. We can't pick flowers. ____________________________________ 3. Let's plant new trees. ____________________________________ 七、连词成句（大小写、标点规范） 1. you, Do, apples, like (?) ____________________________________ 2. can, We, flowers, the, water (.) ____________________________________ 3. like, I, bananas (.) ____________________________________ 4. can't, We, pick, flowers (.) ____________________________________ 八、阅读选择 Hello, I'm Tom. I like apples and bananas. I like fresh air. Plants need sun, water and air. We can water the flowers. We can plant new trees. We can't pick flowers. We should love plants. ( )1. Tom likes ____. A. cats B. apples C. dogs ( )2. Plants need ____. A. juice B. ice C. sun, water and air ( )3. Tom says we can ____. A. water the flowers B. pick flowers C. cut trees ( )4. We ____ pick flowers. A. can't B. can C. do ( )5. Tom ____ bananas. A liking B. like C. . likes 参考答案 小练笔 01 一、用do / don't填空 1. don't 2. Do；do 3. do / don't 4. do / don't 5. Do；don't 二、单项选择 1.A 2.B 3.A 小练笔 02 一、用所给词适当形式填空 1. apples 2. flowers 3. water 4. grapes 5. air 二、单项选择 1.B 2.A 小练笔 03 按要求改写 1. We can't water the flowers. 2. Can we plant new trees? 3. Yes, we can. 4. No, we can't. 5. We can help plants. 小练笔 04 同义改写，句意不变 1. Let's plant new trees. 2. Let's water the flowers. 3. Don't pick flowers. 4. We can help plants. 5. We can't cut trees. 小练笔 05 按要求改写 1. We like bananas. 2. I can help plants. 3. We don't like grapes. 4. I like oranges. 5. We can plant trees. 综合训练 一、选词填空 1. like；grapes；don't 2. can；can't 3. Do；do；can 4. water 二、单项选择 1.C 2.A 3.A 4.B 5.C 6.C 7.A 8.A 9.B 10.A 三、句型转换 1. I don't like oranges. 2. Can we water the flowers? 3. No, I don't. 4. I like apples. 5. I can plant new trees. 6. No, we can't. 四、短文选词填空 1. like 2. don't like 3. water 4. air（3、4空顺序可互换） 5. can 6. flowers 7. can't 五、单句改错 1. 错误：grape → 改正：grapes 【解析】like表示喜欢一类事物，可数名词要使用复数形式。 2. 错误：waters → 改正：water 【解析】can情态动词后面必须接动词原形。 3. 错误：like → 改正：do 【解析】Do引导的一般疑问句，回答要用助动词do/don't，不能用实义动词like。 4. 错误：Are → 改正：Do 【解析】句中有实义动词like，要用助动词Do引导问句，be动词are不能和实义动词like连用。 5. 错误：picks → 改正：pick 【解析】can't为情态动词否定形式，后面接动词原形。 六、同义句式改写 1. Let's water the flowers. 2. Don't pick flowers. 3. We can plant new trees. 八、阅读选择 1.B 2.C 3.A 4.A 5.C 【导语】通读短文提取关键信息，匹配题干问题作答。 1. 原文“I like apples and bananas.”Tom喜欢苹果，选B。 2. 原文“Plants need sun, water and air.”植物需要阳光、水和空气，选C。 3. 原文“We can water the flowers.”我们可以浇花，选A。 4. 原文“We can't pick flowers.”我们不能摘花，选A。 5. 主语Tom是第三人称单数，动词用likes，选C。 第 9 页 共 12 页 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $