内容正文:
Unit 3–Unit 4 语法易错点专项练习
2026—2027学年上学期英语三年级上册(译林版三起·新教材)
语法核心:Unit 3 认识新朋友(Are you…? 你是……吗?肯定回答 Yes, I am. 否定回答 No, I’m not.;What class are you in? 你在几班?I’m in Class 1 / Class 2.;be 动词搭配:I 用 am,you / we 用 are,he / she / it 用 is;I’m = I am,you’re = you are;Nice to meet you (too). 很高兴认识你)。Unit 4 介绍朋友(This is … 这是……,用来介绍他人;He’s / She’s my friend. 他 / 她是我的朋友;It’s = it is,he’s = he is,she’s = she is;I have many friends in my class. 我在班里有许多朋友;too 表示“也”)。易混:am / is / are 与人称搭配、he(男)与 she(女)、动物用 it、Are you…? 回答要换成 I am、This is 介绍不能说成 He is、Class 与数字连用首字母大写。
一、用括号内所给词的适当形式填空
1. I ______ (be) Yang Ling.
2. ______ (be) you Liu Tao?
3. You ______ (be) my friend.
4. This ______ (be) Sam.
5. He ______ (be) my friend.
6. She ______ (be) Su Hai.
7. It ______ (be) good.
8. We ______ (be) twins.
9. What class are ______ (your) in?
10. This is ______ (I) friend.
11. He’s ______ (I) good friend.
12. I have many ______ (friend) in my class.
二、按要求写词
A. 用 am / is / are 填空(每题填一个)
1. I ______ 2. you ______ 3. he ______ 4. she ______
5. it ______ 6. we ______ 7. this ______ 8. Su Hai ______
B. 写出缩写形式或完整形式
9. I am ______ 10. he is ______ 11. she is ______ 12. it is ______
13. you’re ______ 14. I’m ______ 15. he’s ______ 16. it’s ______
三、单项选择(聚焦语法易错)
( )1. —______ you Su Hai? —Yes, I am.
A. Are B. Is C. Am
( )2. —Are you Liu Tao? —______
A. Yes, I am. B. Yes, I’m. C. Yes, you are.
( )3. —Are you Wang Bing? —No, I ______.
A. am not B. isn’t C. aren’t
( )4. —What class are you in? —I’m in ______.
A. class one B. Class 1 C. a class
( )5. ______ is my friend, Sam.
A. This B. These C. He’s
( )6. This is Su Hai. ______ my friend.
A. He’s B. She’s C. It’s
( )7. This is Mike. ______ my friend.
A. He’s B. She’s C. It’s
( )8. This is my cat. ______ very lovely.
A. He’s B. She’s C. It’s
( )9. Liu Tao is my friend. Wang Bing is my friend, ______.
A. to B. too C. two
( )10. I ______ many friends in my class.
A. am B. have C. has
( )11. —Nice to meet you. —______
A. Nice to meet you too. B. Thank you. C. Goodbye.
( )12. you’re = ______
A. you is B. you are C. you am
四、句型转换
1. I am Su Hai.(改为一般疑问句)
______ ______ Su Hai?
2. Are you Su Hai?(作肯定回答)
______, I ______.
3. Are you Wang Bing?(作否定回答)
______, I’m ______.
4. I’m in Class 1.(对划线部分提问)
______ ______ are you in?
5. She is in Class 2.(对划线部分提问)
______ ______ is she in?
6. He is my friend.(用缩写形式改写)
______ my friend.
7. She is my friend.(用缩写形式改写)
______ my friend.
8. It is good.(用缩写形式改写)
______ good.
9. You are twins.(用缩写形式改写)
______ twins.
10. I am Yang Ling.(改为否定句)
I ______ ______ Yang Ling.
五、改错:划出句中错误,在横线上写出正确句子
1. I is Su Hai.
________________________________________________
2. You is my friend.
________________________________________________
3. He are my friend.
________________________________________________
4. —Are you Su Hai? —Yes, I’m.
________________________________________________
5. —Are you Wang Bing? —No, I am.
________________________________________________
6. I’m in class 1.
________________________________________________
7. This is Su Hai. He’s my friend.
________________________________________________
8. This is my cat. She’s very lovely.
________________________________________________
9. He my friend.
________________________________________________
10. This are my friend.
________________________________________________
六、用方框内词的适当形式填空
Passage 1(Unit 3)
Are, not, am, twins, class, in, we, you
A: Hello! 1.______ you Su Hai?
B: No, I’m 2.______. I 3.______ Su Yang.
A: Ah! You’re 4.______!
B: Yes. What 5.______ are you in?
A: I’m 6.______ Class 1. And you?
B: 7.______ are in Class 1 too.
A: Nice to meet 8.______.
B: Nice to meet you too.
Passage 2(Unit 4)
This, He, She, is, friend, too, have, many
Hello! I’m Mike. 1.______ is Wang Bing. 2.______ is my 3.______. This is Su Hai. 4.______ is my friend 5.______. This is my cat. It 6.______ my friend too. I 7.______ 8.______ friends in my class.
参考答案
一、用括号内所给词的适当形式填空
1. am 2. Are 3. are 4. is 5. is 6. is
7. is 8. are 9. you 10. my 11. my 12. friends
解析:I 用 am,you / we 用 are,this / he / she / it 用 is;句首 Are 要大写;9. 介词 in 前用人称代词 you;10、11. 名词前用形容词性物主代词 my;12. many 后用名词复数 friends。
二、按要求写词
A. 1. am 2. are 3. is 4. is 5. is 6. are 7. is 8. is
B. 9. I’m 10. he’s 11. she’s 12. it’s 13. you are 14. I am 15. he is 16. it is
解析:I 配 am;you / we 配 are;he / she / it / this 及单个人名配 is;“主语 + be”的缩写为 I’m、you’re、he’s、she’s、it’s,注意缩写里的撇号“’”。
三、单项选择
1. A 2. A 3. A 4. B 5. A 6. B 7. A 8. C 9. B 10. B 11. A 12. B
解析:1. you 用 are;2. 简短肯定回答用 Yes, I am. 末尾不能缩写;3. 否定回答用 No, I’m not. / I am not.;4. 班级写作 Class 1,Class 首字母大写;5. 介绍别人用 This is…;6. Su Hai 是女孩用 She’s;7. Mike 是男孩用 He’s;8. 动物用 it,即 It’s;9. too 表示“也”,放句末;10. I 后用 have;11. Nice to meet you. 的答语是 Nice to meet you too.;12. you’re = you are。
四、句型转换
1. Are you
2. Yes; am
3. No; not
4. What class
5. What class
6. He’s
7. She’s
8. It’s
9. You’re
10. am not
解析:1. I am… 变一般疑问句时把 am 变为 are 并提前,同时 I 换为 you,即 Are you…?;2、3. 回答 Are you…? 时人称换回 I:Yes, I am. / No, I’m not.;4、5. 对班级提问用 What class;6—9. 分别把 He is / She is / It is / You are 缩写为 He’s / She’s / It’s / You’re;10. I am… 的否定是 I am not…。
五、改错
1. is → am(I 后面用 am:I am Su Hai.)
2. is → are(you 后面用 are:You are my friend.)
3. are → is(he 后面用 is:He is my friend.)
4. I’m → I am(简短回答末尾不用缩写:Yes, I am.)
5. I am → I’m not(No 后用否定:No, I’m not.)
6. class → Class(班级写法 Class 1,首字母大写)
7. He’s → She’s(Su Hai 是女孩,用 She’s)
8. She’s → It’s(猫是动物,用 It’s)
9. He → He’s(缺少 be 动词:He’s my friend.)
10. are → is(介绍别人用 This is:This is my friend.)
六、短文填空
Passage 1(Unit 3):1. Are 2. not 3. am 4. twins 5. class 6. in 7. We 8. you
Passage 2(Unit 4):1. This 2. He 3. friend 4. She 5. too 6. is 7. have 8. many
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