新教科版英语三年级下册Unit 4Come and Join Us 同步练习（含答案）

中小学教育资源及组卷应用平台
Unit 4 Come and Join Us
加入 当然 愿意 足球
只是 东西 乐趣 邀请
她 主意 吃 一起
想要做某事 试一试
轮流一次
1.Do you want to play
核心知识点
1. 句型结构
Do + 主语 (you) + want to + 动词原形 + 其他？
答句：肯定→Yes, I do. / 否定→No, I don’t.（三年级唯一答法，固定搭配，无需变形）
例：—Do you want to play —Yes, I do. / No, I don’t.
2. 关键考点
① 一般疑问句由助动词 Do开头，主语为you，后接want to + 动词原形（固定不变）；② 动词原形：play用原形，不管句型是疑问还是陈述，want to后永远接动词原形；③ 拓展变形：替换动词原形，直接套用句型（本单元适配短语）：Do you want to read （你想看书吗？）Do you want to play sports （你想做运动吗？）Do you want to watch TV （你想看电视吗？）
3. 易错点避雷
Do you want play （缺 to，want 后必须接 to + 动词原形） Does you want to play （主语 you 用助动词 Do，不用 Does） Do you want to plays （to 后用动词原形，不加 s） Yes, I am. / No, I not.（答句必须用 do/don’t 呼应）
4. 句式拓展
加宾语 / 状语，丰富句意：
Do you want to play sports （你想做运动吗？）
Do you want to play with me （你想和我一起玩吗？）
Do you want to read books （你想看书吗？）
配套练习题
一、补全句子
—______ you want to play —Yes, I ______.
—Do you want to ______ (read) —No, I ______.
—Do you want to play ______ (sport) —Yes, I do.
—______ you want to watch TV —No, I don’t.
—Do you want to ______ (have) dinner —Yes, I do.
二、单项选择
—______ you want to play —Yes, I do.
A. Do B. Does C. Are
—Do you want to read —______
A. Yes, I am. B. No, I don’t. C. Yes, I want.
Do you want to ______ sports with me
A. play B. plays C. playing
—Do you want to watch TV —______ Let’s play sports.
A. Yes, I do. B. No, I don’t. C. OK.
Do you want to ______ a book
A. read B. reads C. reading
三、按要求改写句子
I want to play sports.（改为一般疑问句）____________________________________
Do you want to watch TV （作肯定回答）____________________________________
Do you want to read books （作否定回答）____________________________________
I want to have lunch.（改为一般疑问句并作否定回答）____________________________________
Do you want to play （改为陈述句）____________________________________
四、判断正误（对打√，错打 × 并改正）
Do you want play ( ) ____________
Does you want to read ( ) ____________
Do you want to plays sports ( ) ____________
—Do you want to watch TV —Yes, I do. ( ) ____________
—Do you want to have dinner —No, I not. ( ) ____________
Do you want to sleep ( ) ____________
五、连词成句
Do, play, to, want, you ( )____________________________________
want, Do, read, to, you ( )____________________________________
sports, Do, to, play, you, want ( )____________________________________
TV, Do, watch, to, you, want ( )____________________________________
六、情景交际
你想询问同学 “你想玩吗？”，应该说：______
A. Do you want play B. Do you want to play C. You want to play
别人问你 “Do you want to read ”，你想回答 “是的”，说：______
A. Yes, I do. B. Yes, I want. C. No, I don’t.
别人问你 “Do you want to watch TV ”，你想回答 “不想”，说：______
A. No, I do. B. Yes, I don’t. C. No, I don’t.
你想询问妈妈 “你想吃饭吗？”，应该说：______
A. Do you want to have dinner B. Do you want have dinner C. You want to have dinner
2.Can I join you
核心知识点
1. 句型结构 & 答句
结构：Can + 主语 (I) + 动词原形 + 其他？
（Can 为情态动词，表 “能够、可以”，后接动词原形，无三单 /ing 变形）
固定答句（三年级唯一必考，直接套用）：
肯定→Sure! / Of course!（当然可以，最常用）
否定→Sorry, you can’t.（对不起，你不能）
例：—Can I join you —Sure!
2. 关键考点
① join：动词原形，意为 “加入”，join you = 加入你们的活动（三年级无需掌握复杂用法，记固定搭配即可）；② Can 引导的一般疑问句：情态动词提前，主语后接动词原形，变否定直接在 Can 后加 not（Can’t = Can not）；③ 场景拓展：本单元可搭配运动、玩耍等活动，问句后可加具体活动更明确，如：Can I join you to play sports （我能加入你们做运动吗？）
3. 易错点避雷
Can I joins you （Can 后接动词原形，join 不加 s） Can I joining you （Can 后不用 ing 形式） I can join you （疑问句需将 Can 提前，不能陈述句语序） Yes, you can.（三年级日常交际不用此答法，优先用 Sure/Of course 更贴合场景）
4. 句式拓展
加具体活动：Can I join you to read books / Can I join you to play
同义句（了解）：Can I play with you （我能和你们一起玩吗？）
5. 单元搭配运用
结合本单元play sports/read books/watch TV等短语，形成完整对话：
A: Let's play sports.（我们一起做运动吧）
B: Can I join you （我能加入你们吗？）
A: Sure!（当然可以）
配套练习题
一、补全句子（基础题，考核心结构 + 答句）
—______ I join you —Sure!
—Can I ______ (join) you —Of course!
—Can I join you —Sorry, you ______.（can 的否定）
Can I join you to ______ (play) sports
—Can I join you to read ______ (book) —Sure!
二、单项选择
—______ I join you —Sure!
A. Can B. Do C. Am
—Can I join you —______
A. Yes, I do. B. Sure! C. No, I don’t.
Can I join you to ______ TV
A. watch B. watches C. watching
—Can I join you to play sports —______ Let's go!
A. Sorry B. Of course C. No, you can’t
Can I ______ you to read books
A. join B. joins C. joining
三、按要求改写句子
I can join you.（改为一般疑问句）
Can I join you （作肯定回答，用 Sure）
Can I join you to play （作否定回答）
Can I join you （加具体活动，玩运动）
I can join you to read books.（改为否定句）
四、判断正误（对打√，错打 × 并改正）
Can I joins you ( ) ____________
—Can I join you —Yes, I do. ( ) ____________
Can I join you to watch TV ( ) ____________
I can joining you to play sports. ( ) ____________
Can I join you to read book ( ) ____________
—Can I join you —Sure! ( ) ____________
五、连词成句
Can, I, you, join ( )
Can, I, join, play, to, you, sports ( )
I, join, can, you, to, read, books (.)
Can, I, join, you, watch, to, TV ( )
六、情景交际
你想加入同学的玩耍活动，礼貌询问应该说：______
A. I join you. B. Can I join you C. Can I joins you
同学问你 “Can I join you to play sports ”，你同意并回答：______
A. Sorry. B. Sure! C. No, you can’t.
你想加入妈妈的看书活动，应该说：______
A. Can I join you to read books B. Can I read books C. I want to read books.
别人问你 “Can I join you ”，你不方便并拒绝，说：______
A. Sure! B. Of course! C. Sorry, you can’t.
七、补全对话（结合单元句型，综合运用）
A: Let's ______ ______（做运动）together.B: Great!C: Hello! ______ ______ ______（我能加入你们吗？）A: ______!（当然）Come on!C: Thank you! Let's go!
4.That looks like fun.
核心知识点
句子意思：那看起来很有趣。
核心结构：That looks like + 名词
look like：看起来像……
fun：有趣的事（名词）
关键考点
That 是单数主语，所以 look 要加 s → looks
like 在这里是介词，意思是 “像”，不是动词 “喜欢”
同义句
That looks fun.（更简单）
That is fun.
配套练习题
一、补全句子
That ______ (look) like fun.
That looks like ______ (fun).
It ______ (look) like fun.
二、单项选择
That ______ like fun.
A. look B. looks C. looking
That looks like ______.
A. fun B. funny C. funs
It ______ like fun.
A. look B. looks C. are
三、判断正误（√/× 并改正）
That look like fun. ( ) ____________
That looks like fun. ( ) ____________
It looks like funs. ( ) ____________
四、连词成句
looks, That, fun, like (.)
like, fun, It, looks (.)
5.Can I have a turn
核心知识点
意思：我能轮流玩一下吗？/ 轮到我了吗？
核心句型
Can I have a turn
关键考点
have a turn：固定短语，轮流、轮到（某人）
Can 是情态动词，后面用动词原形 have
肯定回答：Sure. / OK. / Of course.
否定回答：Sorry.
配套练习题
一、补全句子
Can I ______ a turn
—Can I have a turn —______!（当然）
二、单项选择
Can I ______ a turn
A. have B. has C. having
—Can I have a turn —______
A. Sure. B. Yes, I can. C. No, I can’t.
三、判断正误（√/× 并改正）
Can I has a turn ( ) ____________
Can I have a turn ( ) ____________
四、连词成句
Can, I, a, have, turn ( )
6.Ask her to join us.
核心知识点
意思：叫她加入我们。
句型结构
Ask + 宾格 + to + 动词原形
必背要点
ask 开头：祈使句，用原形
her 是宾格（不能用 she）
to 后面必须用动词原形
练习题
一、用所给词的适当形式填空
Ask her ______ (join) us.
Ask ______ (she) to join us.
Ask him ______ (play) sports.
二、单项选择
Ask her ______ us.
A. join B. to join C. joining
Ask ______ to join us.
A. she B. her C. he
三、判断正误（√/× 并改正）
Ask she to join us. ( ) ____________
Ask her to join us. ( ) ____________
Ask her join us. ( ) ____________
四、连词成句
Ask, her, to, join, us (.)
7.Let’s eat together.
核心知识点
意思：我们一起吃吧。
句型结构
Let’s + 动词原形 + 其他.
必背要点
Let’s 后面永远跟动词原形
together：一起
常用答句
OK! / Great! / Good idea!
配套练习题
一、用所给词的适当形式填空
Let’s ______ (eat) together.
Let’s ______ (play) sports.
Let’s ______ (read) books.
二、单项选择
Let’s ______ together.
A. eat B. eats C. eating
—Let’s eat together. —______
A. OK! B. Yes, I am. C. No, I don’t.
三、判断正误（√/× 并改正）
Let’s eats together. ( ) ____________
Let’s eat together. ( ) ____________
四、连词成句
Let’s, eat, together (.)
8.Let me help you.
核心知识点
意思：让我来帮你。
句型结构
Let + 宾格 + 动词原形.
必背要点
Let 后面用人称代词宾格：me / you / him / her / us / them
Let 后面永远跟动词原形
help you：帮你
配套练习题
一、用所给词的适当形式填空
Let me ______ (help) you.
Let ______ (I) help you.
Let us ______ (go) together.
二、单项选择
Let me ______ you.
A. help B. helps C. helping
Let ______ help you.
A. I B. me C. my
三、判断正误（√/× 并改正）
Let me helps you. ( ) ____________
Let me help you. ( ) ____________
Let I help you. ( ) ____________
四、连词成句
Let, me, help, you (.)
Tip 1 知识点总结
核心知识点
1. 邀请类问句（Do you want to... ）
问句结构：Do you want to + 动词短语 （你想要…… 吗？）
Do you want to join us （你想加入我们吗？）
Do you want to try （你想试试吗？）
Do you want to play （你想玩吗？）
答句：
肯定答句（礼貌接受）：Yes, I’d love to! Thanks!（是的，我很乐意！谢谢！）
否定答句（礼貌拒绝）：No, thanks! ... is just not my thing.（不了，谢谢！…… 不是我喜欢的事。）
2. 关键语法 & 表达
I’d love to：I would love to 的缩写，比 Yes, I do. 更礼貌、更口语化，是三年级交际用语的加分表达。
... is just not my thing：口语化表达，意为 “…… 不是我擅长 / 喜欢的事”，用于委婉拒绝，避免生硬。
try：动词，意为 “尝试”，want to try = 想要试试。
3. 易错点避雷
Yes, I love to.（漏了'd，正确是I’d love to） No, thanks. ... is not my thing.（漏了just，口语中just更自然） Do you want to try → Yes, I want.（答句必须用I’d love to呼应，不能直接用want）
配套练习题
一、补全对话
—Do you want to join us
—______, ______ ______ ______! Thanks!
—Do you want to try
—______, ______! Painting is just not my thing.
—Do you want to play football
—Yes, ______ ______ ______!
—Do you want to join us
—No, thanks! ______ is just not my thing.（填活动，如 Singing）
二、单项选择
—Do you want to join us
—______
A. Yes, I’d love to! B. Yes, I do. C. No, I don’t.
—Do you want to try
—No, thanks! Dancing ______ just not my thing.
A. am B. is C. are
I’d love to = ______
A. I would love to B. I will love to C. I can love to
—Do you want to play
—______
A. No, I don’t. B. No, thanks! C. Yes, I want.
三、按要求改写句子
Do you want to join us （作肯定回答）
Do you want to try （作否定回答，用not my thing）
I’d love to.（写出完整形式）
Do you want to play （仿写答句，肯定 + 否定）
肯定：____________________
否定：____________________
四、判断正误（√/× 并改正）
—Do you want to join us —Yes, I love to! ( ) ____________
—Do you want to try —No, thanks! ( ) ____________
Drawing is just not my thing. ( ) ____________
—Do you want to play —Yes, I want. ( ) ____________
五、情景交际
你想邀请同学加入你们的游戏，应该说：______
A. Do you want to join us B. Can I join you C. Ask her to join us.
同学邀请你画画，你不喜欢，礼貌拒绝应该说：______
A. No, I don’t. B. No, thanks! Drawing is just not my thing. C. Yes, I’d love to.
朋友邀请你一起玩，你很乐意，应该说：______
A. Yes, I do. B. Yes, I’d love to! Thanks! C. No, thanks!
Tip 2 知识点总结
核心知识点
1. 场景分类：三种交际万能套话
主动邀请、请求参与、接受提议三种场景的地道表达：
场景一：主动邀请（A 发起提议）
句型：Let’s play together! （我们一起玩吧！）
答句（接受）：Yes, thanks! （好的，谢谢！）
重点：这里的 thanks 是对对方提议的感谢，比简单的 "OK!" 更礼貌。
场景二：请求轮到（我想参与）
句型：Can I have a turn （我能轮流玩一下吗？/ 轮到我了吗？）
答句（同意）：Sure! You can go next. （当然！下一个就是你。）
全新重点：You can go next. 是非常地道的回应，表示 “你可以接下来玩”，三年级必背加分句。
场景三：请求加入（我想加入你们）
句型：Can I join you （我能加入你们吗？）
答句（热烈欢迎）：Sure! Come and join us! （当然！来加入我们吧！）
全新重点：Come and join us! （来加入我们吧），这里 Come 和 join 是两个动词原形，中间用 and 连接，是三年级的句型考点。
2. 关键短语与用法
have a turn：轮流（之前主要学了答句，这里重点学了完整问句）。
go next：下一个去（固定搭配）。
Come and...：来做……（and 连接两个动词原形，表示顺承关系，如 Come and play!）。
配套练习题
一、补全对话
A: Let's play together!
B: ______, ______!
A: Can I have a turn
B: ______! You can go next.
A: Can I join you
B: Sure! ______ ______ ______! (快来加入我们)
二、单项选择
—Let's play together!—______
A. Yes, thanks! B. No, I not. C. Thank.
—Can I have a turn —______ You can go next.
A. Sorry. B. Sure! C. No, thanks.
—Can I join you —Sure! Come and ______ us.
A. join B. play C. look
You can go ______.
A. first B. next C. late
三、连词成句
can, I, a, turn, have ( )
come, and, join, us (.)
together, play, Let's (.)
四、情景匹配
( ) 你想让同学下一个玩，说：
( ) 你邀请同学一起玩，同学感谢你，说：
( ) 你想加入他们的游戏，说：
A. Can I join you
B. You can go next.
C. Yes, thanks!
五、判断正误（× 并改正）
Sure! Come join us! ( ) ____________
You can go first. ( ) ____________
一、词汇 & 短语
词汇
join，sure，love，football，just，thing，fun，ask，her，idea，eat，together
短语
Want to，have a try，have a turn
二、1. Do you want to play 练习题答案
一、补全句子
Do; do 2. read; don’t 3. sports 4. Do 5. have
二、单项选择
1.A 2.B 3.A 4.B 5.A
三、按要求改写句子
Do you want to play sports
Yes, I do.
No, I don’t.
—Do you want to have lunch —No, I don’t.
I want to play.
四、判断正误
1.× Do you want to play
2.× Do you want to read
3.× Do you want to play sports
4.√
5.× No, I don’t.
6.√
五、连词成句
Do you want to play
Do you want to read
Do you want to play sports
Do you want to watch TV
六、情景交际
1.B 2.A 3.C 4.A
三、2. Can I join you 练习题答案
一、补全句子
Can 2. join 3. can’t 4. play 5. books
二、单项选择
1.A 2.B 3.A 4.B 5.A
三、按要求改写句子
Can I join you
Sure!
Sorry, you can’t.
Can I join you to play sports
I can’t join you to read books.
四、判断正误
1.× Can I join you
2.× Sure! / Of course!
3.√
4.× I can join you to play sports.
5.× Can I join you to read books
6.√
五、连词成句
Can I join you
Can I join you to play sports
I can join you to read books.
Can I join you to watch TV
六、情景交际
1.B 2.B 3.A 4.C
七、补全对话
play sports；Can I join you；Sure
四、4. That looks like fun. 练习题答案
一、补全句子
looks 2. fun 3. looks
二、单项选择
1.B 2.A 3.B
三、判断正误
1.× look→looks
2.√
3.× funs→fun
四、连词成句
That looks like fun.
It looks like fun.
五、5. Can I have a turn 练习题答案
一、补全句子
have 2. Sure / OK / Of course
二、单项选择
1.A 2.A
三、判断正误
1.× has→have
2.√
四、连词成句
Can I have a turn
六、6. Ask her to join us. 练习题答案
一、填空
to join 2. her 3. to play
二、单选
1.B 2.B
三、判断
1.× she→her
2.√
3.× join→to join
四、连词成句
Ask her to join us.
七、7. Let’s eat together. 练习题答案
一、填空
eat 2. play 3. read
二、单选
1.A 2.A
三、判断
1.× eats→eat
2.√
四、连词成句
Let’s eat together.
八、8. Let me help you. 练习题答案
一、填空
help 2. me 3. go
二、单选
1.A 2.B
三、判断
1.× helps→help
2.√
3.× I→me
四、连词成句
Let me help you.
九、Tip 1 练习题答案
一、补全对话
Yes, I’d love to
No, thanks
I’d love to
示例：Singing/Dancing/Drawing
二、单项选择
1.A 2.B 3.A 4.B
三、按要求改写句子
Yes, I’d love to! Thanks!
No, thanks! ... is just not my thing.
I would love to
肯定：Yes, I’d love to! Thanks! 否定：No, thanks! Playing is just not my thing.
四、判断正误
1.× Yes, I’d love to!
2.√
3.√
4.× Yes, I’d love to!
五、情景交际
1.A 2.B 3.B
十、Tip 2 练习题答案
一、补全对话
Yes, thanks 2. Sure 3. Come and join
二、单项选择
1.A 2.B 3.A 4.B
三、连词成句
Can I have a turn
Come and join us.
Let's play together.
四、情景匹配
1.B 2.C 3.A
五、判断正误
1.× Come and join us
2.× You can go next