Unit 3 Tools and senses for learning PartB（同步练）-2025-2026学年人教PEP版英语三年级下册

**基本信息** Unit 3 PartB同步练聚焦词形转换与句型应用，分层设计从基础词形到综合句型，梯度清晰，助力新授课后语言能力与思维品质提升。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |基础层|单一词形转换（单复数、过去式等）|20题纯词形填空，强化核心词汇变形| |进阶层|语境中的词形应用|40题句子填空，融合时态、主谓一致等语法点| |提升层|词性转换与句型转换|专项转换+10题句型改写，培养综合语言运用能力|

Unit 3 Tools and senses for learning PartB同步练 一、按要求写单词（基础词性/词形转换） 1. 写出these 的单数形式：__________ 2. 写出find 的过去式：__________ 3. 写出see 的过去式：__________ 4. 写出hear 的过去式：__________ 5. 写出learn 的过去式（两种形式）：__________ / __________ 6. 写出smell 的过去式（两种形式）：__________ / __________ 7. 写出taste 的第三人称单数形式：__________ 8. 写出touch 的第三人称单数形式：__________ 9. 写出eraser 的复数形式：__________ 10. 写出ruler 的复数形式：__________ 11. 写出pen 的复数形式：__________ 12. 写出pencil 的复数形式：__________ 13. 写出book 的复数形式：__________ 14. 写出bag 的复数形式：__________ 15. 写出paper 的复数形式（表“报纸/论文”时）：__________ 16. 写出nose 的复数形式：__________ 17. 写出tongue 的复数形式：__________ 18. 写出class 的复数形式：__________ 19. 写出computer 的复数形式：__________ 20. 写出touch 的现在分词形式：__________ 二、用所给单词的适当形式填空（综合词形/词性转换） 1. I can’t ______ (find) my eraser. 2. He ______ (find) his ruler under the desk yesterday. 3. There ______ (be) a pen and two pencils in the bag. 4. These ______ (book) are my favourite. 5. I see two ______ (computer) in the classroom. 6. She can ______ (smell) the flowers. 7. The food ______ (taste) good. 8. Listen! I can ______ (hear) a bird singing. 9. He is ______ (touch) the cat’s tail gently. 10. The ______ (nose) of the dog is wet. 11. The ______ (tongue) helps us taste food. 12. We have six ______ (class) every day. 13. ______ (these) is my new pencil box. 14. ______ (this) are my erasers and rulers. 15. I ______ (see) a beautiful bird in the tree just now. 16. She ______ (learn) English every day. 17. We ______ (learn) a new song last week. 18. There are many pieces of ______ (paper) on the floor. 19. My brother has three ______ (bag) for school. 20. The children are ______ (learn) how to use the computer. 21. Can you ______ (see) the words on the blackboard? 22. The cake ______ (taste) sweet. 23. I ______ (hear) a strange noise last night. 24. She ______ (touch) the screen of the computer carefully. 25. The ______ (eraser) are on the teacher’s desk. 26. My sister has a long ______ (ruler). 27. There are five ______ (pencil) in the pencil case. 28. The ______ (book) on the shelf are all new. 29. The students are ______ (have) class now. 30. He ______ (smell) the soup before he eats it. 31. The dog ______ (touch) the door with its nose. 32. We ______ (find) our way home with the help of the map. 33. The children are ______ (watch) a film in the classroom. 34. She ______ (hear) the teacher clearly. 35. The ______ (class) are over at 4:30. 36. There is a new ______ (computer) in the lab. 37. I want to ______ (learn) how to draw pictures. 38. The ______ (tongue) of the snake is very long. 39. These ______ (paper) are important documents. 40. He has two ______ (bag) for his books and stationery. 三、词性转换专项练习（写出指定词性形式） （1） 动词转名词 1. smell → __________（名词，气味） 2. taste → __________（名词，味道） 3. hear → __________（名词，听力） 4. touch → __________（名词，触摸） （2） 代词转换 1. these → __________（单数形式） 2. this → __________（复数形式） （3） 动词转现在分词/过去式 1. find → __________（现在分词）/ __________（过去式） 2. see → __________（现在分词）/ __________（过去式） 3. hear → __________（现在分词）/ __________（过去式） 4. learn → __________（现在分词）/ __________（过去式，两种） 5. touch → __________（现在分词）/ __________（过去式） 6. taste → __________（现在分词）/ __________（过去式） 7. smell → __________（现在分词）/ __________（过去式，两种） 四、词形填空（根据句意用括号内单词的正确形式填空） 1. I can’t ______ (find) my pen. 2. He ______ (see) a cat in the garden yesterday. 3. There are many ______ (ruler) in the stationery shop. 4. My sister has a new ______ (eraser). 5. These ______ (book) are about animals. 6. The ______ (bag) on the desk are mine. 7. I have some pieces of ______ (paper) to write on. 8. ______ (these) is my favourite pencil. 9. Can you ______ (hear) me? 10. The food ______ (taste) delicious. 11. The flowers ______ (smell) very nice. 12. He is ______ (touch) the hot stove carefully. 13. The ______ (nose) of the elephant is very long. 14. The ______ (tongue) helps us speak. 15. We have English ______ (class) every morning. 16. There are many ______ (computer) in the computer room. 17. She wants to ______ (learn) how to play the piano. 18. The students are ______ (learn) new words in class. 19. I ______ (find) my lost pencil box under the bed this morning. 20. The children are ______ (watch) a show in the hall. 21. She ______ (hear) the bell ring just now. 22. The soup ______ (taste) salty. 23. The bread ______ (smell) fresh. 24. He ______ (touch) the soft toy gently. 25. The ______ (eraser) are red and blue. 26. My brother’s ______ (ruler) is broken. 27. There are ten ______ (pencil) in the box. 28. The ______ (book) on the shelf are mine. 29. The ______ (bag) is heavy with books. 30. The students are ______ (have) class now. 五、按要求改写句子（含词形/词性转换） 1. I find my eraser.（改为过去式句子） I ______ my eraser yesterday. 2. This is my ruler.（改为复数句） ______ are my ______. 3. She can see the bird.（改为否定句） She ______ ______ the bird. 4. The flower smells nice.（改为一般疑问句） ______ the flower ______ nice? 5. I hear a noise.（改为同义进行时句子） I ______ ______ a noise now. 6. These are my books.（改为单数句） ______ ______ my book. 7. He learns English every day.（改为一般疑问句） ______ he ______ English every day? 8. The cat is touching the ball.（改为一般现在时句子） The cat ______ the ball every day. 9. The food tastes good.（改为否定句） The food ______ ______ good. 10. We have a class in the morning.（改为复数句） We have many ______ in the morning. 参考答案 一、按要求写单词 1. this 2. found 3. saw 4. heard 5. learnt / learned 6. smelt / smelled 7. tastes 8. touches 9. erasers 10. rulers 11. pens 12. pencils 13. books 14. bags 15. papers 16. noses 17. tongues 18. classes 19. computers 20. touching 二、用所给单词的适当形式填空 1. find 2. found 3. is 4. books 5. computers 6. smell 7. tastes 8. hear 9. touching 10. nose 11. tongue 12. classes 13. This 14. These 15. saw 16. learns 17. learnt / learned 18. paper 19. bags 20. learning 21. see 22. tastes 23. heard 24. touches 25. erasers 26. ruler 27. pencils 28. books 29. having 30. smells 31. touches 32. found 33. watching 34. hears 35. classes 36. computer 37. learn 38. tongue 39. papers 40. bags 三、词性转换专项练习 1. 动词转名词 1. smell 2. taste 3. hearing 4. touch 2. 代词转换 1. this 2. these 3. 动词转现在分词/过去式 1. finding; found 2. seeing; saw 3. hearing; heard 4. learning; learnt / learned 5. touching; touched 6. tasting; tasted 7. smelling; smelt / smelled 四、词形填空 1. find 2. saw 3. rulers 4. eraser 5. books 6. bags 7. paper 8. This 9. hear 10. tastes 11. smell 12. touching 13. nose 14. tongue 15. classes 16. computers 17. learn 18. learning 19. found 20. watching 21. heard 22. tastes 23. smells 24. touches 25. erasers 26. ruler 27. pencils 28. books 29. bag 30. having 五、按要求改写句子 1. found 2. These; rulers 3. can’t see 4. Does; smell 5. am hearing 6. This is 7. Does; learn 8. touches 9. doesn’t taste 10. classes 学科网（北京）股份有限公司 $