小学英语句型转换之肯定句变否定句的相关习题
四年级英语肯定句转否定句单选题20题
四年级英语肯定句转否定句单选题20题1.I am happy.（改为否定句）I ____ happy.A.am notB.is notC.are not答案：A。
在含有be 动词am 的肯定句变否定句时，直接在am 后加not。
选项B 是is not，is 与第三人称单数连用，这里主语是I，不能用is。
选项C 是are not，are 与第二人称及复数连用，这里主语是I，不能用are。
2.She is a teacher.（改为否定句）She ____ a teacher.A.is notB.am notC.are not答案：A。
在含有be 动词is 的肯定句变否定句时，直接在is 后加not。
选项B 是am not，am 与I 连用，这里主语是she，不能用am。
选项C 是are not，are 与第二人称及复数连用，这里主语是she，不能用are。
3.We are students.（改为否定句）We ____ students.A.am notB.is notC.are not答案：C。
在含有be 动词are 的肯定句变否定句时，直接在are后加not。
选项A 是am not，am 与I 连用，这里主语是we，不能用am。
选项B 是is not，is 与第三人称单数连用，这里主语是we，不能用is。
4.It is a book.（改为否定句）It ____ a book.A.is notB.am notC.are not答案：A。
在含有be 动词is 的肯定句变否定句时，直接在is 后加not。
选项B 是am not，am 与I 连用，这里主语是it，不能用am。
选项C 是are not，are 与第二人称及复数连用，这里主语是it，不能用are。
5.They are friends.（改为否定句）They ____ friends.A.am notB.is notC.are not答案：C。
四年级英语肯定句改否定句单选题40题
四年级英语肯定句改否定句单选题40题1. I have a dog.A. I don't have a dog.B. I haven't a dog.C. I no have a dog.D. I doesn't have a dog.答案：A。
本题考查肯定句改否定句的规则，have 作为“有”的意思时，否定形式是don't have ，B 选项haven't 用于完成时态，C 选项no have 表述错误，D 选项doesn't 用于第三人称单数，I 是第一人称，要用don't 。
2. There is a cat on the table.A. There isn't a cat on the table.B. There aren't a cat on the table.C. There no is a cat on the table.D. There doesn't a cat on the table.答案：A。
本题中is 的否定形式是isn't ，B 选项aren't 用于复数，cat 是单数，C 选项no is 表述错误，D 选项doesn't 用于实义动词，is 是be 动词。
3. She has a pen.A. She doesn't have a pen.B. She haven't a pen.C. She no has a pen.D. She doesn't has a pen.答案：A。
has 作为实义动词，否定形式是doesn't have ，B 选项haven't 用法错误，C 选项no has 错误，D 选项doesn't 后面要用动词原形have 。
4. We like apples.A. We don't like apples.B. We aren't like apples.C. We no like apples.D. We doesn't like apples.答案：A。
四年级英语肯定句改否定句单选题40题
四年级英语肯定句改否定句单选题40题1.I am a student.变为否定句是：I am not a student.下列选项中正确的一项是：A.I am a student.B.I am not a student.C.I'm student.答案：B。
在含有be 动词的肯定句改否定句时，在be 动词后加not。
A 选项是原句，不是否定句。
C 选项缺少冠词a，且没有改成否定形式。
2.She is a teacher.变为否定句是：She is not a teacher.下列选项中正确的一项是：A.She is a teacher.B.She is not a teacher.C.She's teacher.答案：B。
含有be 动词的肯定句改否定句，在be 动词后加not。
A 选项是原句，不是否定句。
C 选项缺少冠词a，且没有改成否定形式。
3.We are friends.变为否定句是：We are not friends.下列选项中正确的一项是：A.We are friends.B.We are not friends.C.We're friend.答案：B。
含有be 动词的肯定句改否定句，在be 动词后加not。
A 选项是原句，不是否定句。
C 选项friend 是可数名词，前面缺少冠词或用复数形式，且没有改成否定形式。
4.He is a boy.变为否定句是：He is not a boy.下列选项中正确的一项是：A.He is a boy.B.He is not a boy.C.He's boy.答案：B。
含有be 动词的肯定句改否定句，在be 动词后加not。
A 选项是原句，不是否定句。
C 选项缺少冠词a，且没有改成否定形式。
5.They are students.变为否定句是：They are not students.下列选项中正确的一项是：A.They are students.B.They are not students.C.They're student.答案：B。
四年级英语肯定句转否定句单选题20题
四年级英语肯定句转否定句单选题20题1. My friends are in the classroom.A. My friends aren't in the classroom.B. My friends not are in the classroom.C. My friends is not in the classroom.答案：A。
解析：在含有be 动词的肯定句变否定句时，在be 动词后加not。
are 的否定形式是aren't，B 选项语法错误，C 选项is 与friends 不搭配。
2. The teacher is very kind.A. The teacher isn't very kind.B. The teacher not is very kind.C. The teacher are not very kind.答案：A。
解析：is 的否定形式是isn't，B 选项语法错误，C 选项are 与teacher 不搭配。
3. We are happy today.A. We aren't happy today.B. We not are happy today.C. We is not happy today.答案：A。
解析：are 的否定形式是aren't，B 选项语法错误，C 选项is 与we 不搭配。
4. These books are new.A. These books aren't new.B. These books not are new.C. These books is not new.答案：A。
解析：are 的否定形式是aren't，B 选项语法错误，C 选项is 与books 不搭配。
5. The girls are singing.A. The girls aren't singing.B. The girls not are singing.C. The girls is not singing.答案：A。
四年级英语肯定句转否定句练习题20题含答案解析
四年级英语肯定句转否定句练习题20题含答案解析1. She is a beautiful girl.A. She isn't a beautiful girl.B. She not a beautiful girl.C. She are not a beautiful girl.答案解析：A。
含有be 动词的肯定句变否定句，在be 动词后加not。
B 选项缺少be 动词is 和not 的缩写形式isn't。
C 选项be 动词are 与主语she 不搭配。
2. The cat is black.A. The cat isn't black.B. The cat not black.C. The cat are not black.答案解析：A。
肯定句变否定句在be 动词后加not。
B 选项缺少isn't。
C 选项are 与主语cat 不搭配。
3. I am a student.A. I am not a student.B. I not a student.C. I are not a student.答案解析：A。
be 动词后加not 变否定句。
B 选项错误同前两题。
C 选项are 与主语I 不搭配。
4. He is a tall boy.A. He isn't a tall boy.B. He not a tall boy.C. He are not a tall boy.答案解析：A。
在be 动词后加not。
B 选项缺少isn't。
C 选项are 与主语he 不搭配。
5. This is a book.A. This isn't a book.B. This not a book.C. This are not a book.答案解析：A。
be 动词后加not 变否定句。
B 选项缺少isn't。
C 选项are 与主语this 不搭配。
四年级英语肯定句改否定句单选题40题
四年级英语肯定句改否定句单选题40题1. They are happy.A. They aren't happy.B. They not happy.C. They no happy.D. They don't happy.答案：A。
本题主要考查肯定句改否定句的正确形式，are 的否定形式是aren't 。
选项B、C、D 形式均不正确。
2. I have a pen.A. I haven't a pen.B. I don't have a pen.C. I not have a pen.D. I no have a pen.答案：B。
have 表示“有”，在改否定句时，当主语是第一人称I 时，要用don't have 。
选项 A 形式错误，选项C、D 形式也不正确。
3. She likes apples.A. She doesn't likes apples.B. She don't likes apples.C. She doesn't like apples.D. She not like apples.答案：C。
likes 是动词第三人称单数形式，否定形式要用doesn't like 。
选项A likes 形式错误，选项B don't 错误，选项D not 错误。
4. We play football.A. We don't play football.B. We not play football.C. We no play football.D. We doesn't play football.答案：A。
主语是we ，否定形式用don't 。
选项B、C 形式错误，选项D doesn't 用于第三人称单数。
5. He is a student.A. He isn't a student.B. He not a student.C. He no a student.D. He don't a student.答案：A。
三年级英语肯定句转换否定句单选题30题
三年级英语肯定句转换否定句单选题30题1. I like apples.A. I don't like apples.B. I not like apples.C. I no like apples.答案：A。
解析：在肯定句变否定句时，要在动词前加don't 或doesn't。
I 是第一人称，用don't，所以是I don't like apples.2. The cat is cute.A. The cat isn't cute.B. The cat not is cute.C. The cat no is cute.答案：A。
解析：is 的否定形式是isn't，所以The cat is cute. 的否定句是The cat isn't cute.3. We have bananas.A. We don't have bananas.B. We not have bananas.C. We no have bananas.答案：A。
解析：have 表示“有”时，否定形式是don't have，所以We have bananas. 变为否定句是We don't have bananas.4. The dog has a toy.A. The dog doesn't have a toy.B. The dog not has a toy.C. The dog no has a toy.答案：A。
解析：has 是have 的第三人称单数形式，否定形式是doesn't have，所以The dog has a toy. 否定句是The dog doesn't have a toy.5. They like oranges.A. They don't like oranges.B. They not like oranges.C. They no like oranges.答案：A。
四年级英语肯定句改否定句练习题50题含答案解析
四年级英语肯定句改否定句练习题50题含答案解析1.I am a student.A.I am not a student.B.I am no a student.答案解析：A。
在肯定句变否定句时，be 动词后直接加not。
选项B 是错误的，“no”不能直接放在be 动词后修饰名词。
2.She is a teacher.A.She is not a teacher.B.She isn't a teacher.C.She no is a teacher.答案解析：A 和B 都是正确的表达方式。
在肯定句变否定句时，be 动词后直接加not，可以缩写为isn't。
选项C 是错误的，“no”不能直接放在be 动词后修饰名词。
3.He is a doctor.A.He is not a doctor.B.He isn't a doctor.C.He no is a doctor.答案解析：A 和B 都是正确的表达方式。
在肯定句变否定句时，be 动词后直接加not，可以缩写为isn't。
选项C 是错误的，“no”不能直接放在be 动词后修饰名词。
4.We are friends.A.We are not friends.C.We no are friends.答案解析：A 和B 都是正确的表达方式。
在肯定句变否定句时，be 动词后直接加not，可以缩写为aren't。
选项C 是错误的，“no”不能直接放在be 动词后修饰名词。
5.They are students.A.They are not students.B.They aren't students.C.They no are students.答案解析：A 和B 都是正确的表达方式。
在肯定句变否定句时，be 动词后直接加not，可以缩写为aren't。
选项C 是错误的，“no”不能直接放在be 动词后修饰名词。