Unit 2 Helping others at school 重难点（知识清单）-2025-2026学年译林版（三起）英语四年级下册

四年级下册英语 Unit 2 Helping others at school 重难点知识清单--译林版 (重点词汇·短语·句子·语法知识点) 📌一、重点词汇 1. other 另外，其他 2. room 房间 3. computer 计算机，电脑 4. swing 秋千 5. playground 操场 6. have a look 看一看 7. careful 小心，谨慎 8. feel 觉得，感到 9. take 带，拿 10. first 第一 11. floor 楼层 12. show … around 带……参观 13. any 任何的，任一的 14. third 第三 15. later 以后，后来 16. piano 钢琴 17. second 第二 📌二、重点短语 1. helping others at school 在学校帮助别人 2. in our new school 在我们的新学校 3. go and have a look 去看一看 4. go and play 去玩 5. on the swing 在秋千上 6. be careful 小心 7. feel dizzy 感到头晕 8. time for Art 到上美术课的时间了 9. go to the art room 去美术教室 10. take these books 拿这些书 11. on the first floor 在一楼 12. come with me 跟我来 13. so big 这么大 14. so kind 这么善良 15. show me around 带我参观 16. You’re welcome！ 不客气 17. some computer rooms 一些电脑室 18. on the third floor 在三楼 19. go there 去那里 20. on the second floor 在二楼 21. our classroom(s) 我们的教室 22. the music room 音乐教室 23. help my classmates 帮助我的同学 24. play on the swing 在秋千上玩 25. give me six of your books 给我你的六本书 📌三、重点句子 1. Is there a swing in our new school? 我们新学校里有秋千吗？ 2. Let's go and have a look. 我们去看一看吧。 3. It's time for Art. 到上美术课的时间了。 4. Let's go to the art room. 我们去美术教室吧。 5. I want to take these books to the library. 我想把这些书带到图书馆去。 6. It's on the first floor. Come with me. 它在一楼。跟我来。 7. Our school is so big. 我们的学校真大。 8. Let's go to the art room first. 我们先去美术教室吧。 9. Are there any computer rooms in our school? 我们学校有电脑室吗？ 10. We can go there later. 我们可以晚点去那里。 11. The music room is on the third floor too. 音乐教室也在三楼。 12. Our classrooms are here on the second floor. 我们的教室在二楼这里。 13. Thank you for showing me around. 谢谢你带我参观。 14. Is there a swing in the playground? 操场上有秋千吗？ 15. There is not a piano in the music room. 音乐教室里没有钢琴。 📌四、核心语法知识点 Ⅰ.基数词与序数词 （一）概念 基数词：表示数量 one（一）、two（二）、three（三）… 序数词：表示顺序（第几） first（第一）、second（第二）、third（第三）… （二）核心重难点：特殊变化（必须背） ① one → first (缩写：1st) 第一 ② two → second (缩写：2nd) 第二 ③ three → third (缩写：3rd) 第三 （三）序数词变化规则 ① 一般情况：直接在词尾加 -th 例如：four → fourth (4th) ② 以 ve 结尾：ve 变 f，再加 -th 例如：five → fifth (5th) ③ 以 t / e 结尾： 例如：eight → eighth (8th) nine → ninth (9th) ④ 整十数（以 y 结尾）：y 变 ie，再加 -th 例如：twenty → twentieth (20th) 例题： 1. Today is the __________ (one) day of the new term. 2. This is the __________ (two) classroom. 3. My birthday is on the __________ (three) of January. 4. It’s the __________ (five) lesson in this unit. 5. We live on the __________ (twenty) floor. Ⅱ.There be句型 （一）肯定句基本结构 There is/ are + 可数名词单数/不可数名词/可数名词复数 + 地点. 例：There is a swing in our new school. There are some art rooms on the second floor. 例题： (1) There ______ (be) a pencil in the pencil case. (2) There ______ (be) some juice in the glass. (3) There ______ (be) some birds in the tree. (4) There ______ (be) two girls in the classroom. （二）there be句型的一般疑问句 结构：Is/Are + there + 主语 + 地点? 肯定回答： Yes, there is. / Yes, there are. 否定回答： No, there isn’t. / No, there aren’t. 注意：肯定句中的 some 在疑问句中要变为 any 例：Is there a swing in our new school? 例：Are there any computer rooms in our school? 例题： 1. There is a book on the desk.（改为一般疑问句，并作肯定回答） ______ ______ a book on the desk? Yes, ______ ______. 2. There are some flowers in the park.（改为一般疑问句，并作否定回答） ______ ______ ______ flowers in the park? No, ______ ______. （三）there be句型的否定句 注意：肯定句中的 some 在否定句中要变为 any 1. There isn't \ aren't + 可数名词单数/不可数名词/可数名词复数 + 地点. 例：There isn't a piano in the music room. There aren't any music rooms in our school. 例题： (1) There is a cat under the bed.（改为否定句） There ______ a cat under the bed. (2) There is some water in the cup.（改为否定句） There ______ ______ water in the cup. (3) There are many trees near the river.（改为否定句） There ______ many trees near the river. (4) There are some pens in my bag.（改为否定句） There ______ ______ pens in my bag. （四）对 there be句型的主语进行提问 结构：What's + 地点?（无论主语单数、复数，一般都用 What's） 例：There is a book on the desk. → What's on the desk? 例：There are some birds in the tree. → What's in the tree? 例题： 1. There is a book on the desk.（对画线部分提问） ______ on the desk? 2. There are some birds in the tree.（对画线部分提问） ______ in the tree? Ⅲ.其他重点小语法 1. let's / can + 动词原形 例：Let’s go and have a look. 2. It's time for + 名词… = It's time to + 动词原形… 例：It’s time for Art. = It’s time to have Art. 3. want + to + 动词原形 想要做某事 例：I want to take these books to the library. 例题： (1) I want ______ (draw / to draw) a picture. 4. thank you for + 名词 / 动词-ing ,for 是介词，后加名词或动词-ing 例：Thank you for showing me around. 例题： (1) Thank you for ______ (help / helping) me. 5. show sb. around sp. 结构：show + 宾语(sb.) + around + 地点 意思：带某人参观某地 例：Thank you for showing me around our new school. 例题： (1) Can you show ______ (I) around your school? (2) I want to show ______ (she) around my school. 6. some 和 any 的用法 一般情况下肯定句中用 some，否定句或一般疑问句中some要变为any 例：I don't have any books. 例：Do you have any friends? 例题： (1) There is______ (some/any) water in the glass. (2) I don't have ______ (some/any) pens. (3) Do you have ______ (some/any) crayons? 7. 在第几层楼，介词用 on，序数词前面必须加 the 结构：on the first/second/… floor 例：on the first floor 例题： (1) The library is ______ (in/on) the first floor. (2) The music room is on the ______ (three) floor. 参考答案： Ⅰ. 1.first 2.second 3.third 4.fifth 5.twentieth Ⅱ.（一）(1)is (2)is (3)are (4)are （二）1.Is there; there is 2.Are there any; there aren't （三）(1)isn't (2)isn't any (3)aren't (4)aren't any （四）1.What's 2. What's Ⅲ.3. (1)to draw 4.(1)helping 5.(1)me (2)her 6.(1)some (2)any (3)any 7.(1)on (2)third 学科网（北京）股份有限公司 $