【知识梳理】
单数句变复数句歌谣：
单数句变复数句, 代词四变要记住。 人称,指示,反身变 物主代词看一看。 连系动词 am is 变成 are。
冠词a an要去掉，改为some, any也可以。
名词做定语，介宾不要变；有man和woman也例外。 句式不要变，十全十美题做完。
1、人称代词由单数变复数： 主格 宾格 I me we us you you you you he/she/it him/her/it they them 例1 She is a girl . They are girls . 例2 I like her. We like them.
2 、指示代词由单数变复数：
单数 复数 this these
that those
例1 This is a book . These are（some）books . 例2 Is that a pen？ Are those（any）pens？
3、反身代词：
第一人称 myself ourselves 第二人称 yourself yourselves 第三人称 himself themselves ( herself, itself )
【例题精讲】
例1 I am teaching myself computer. We are teaching ourselves computer. 例2 The child himself draws this picture.
The children themselves draw these pictures. 4、 物主代词由单数变复数：
1 名词性物主代词：mine ours ，yours yours ， his/hers/its theirs 2 形容词性物主代词：my our，your your ，his/her/its their 例1 The book is mine. The books are ours. 例2 This is her pen. These are their pens.
5、 一般情况下，形容词性物主代词在单数句变复数句时不变。 例1 This is my book . These are my books .
1
6、 当句中形容词性物主代词与句中的主语一致时，形容词性物主代词 应随主语人称的变化而变化， 仍要保持一致。 例1 He likes his bike. They like their bikes. 7、 连系动词由单数变复数 ：is/am are
例1 I am a teacher. We are（some） teachers.
8、 a/an表示一个，只能用在单数名词前，当单数句变复数句时， 一定要把a/an去掉，或改为some/any。
例1 This is a book . These are（some）books . 例2 Is that a pen？ Are those（any）pens？ 9、 当名词作定语或在介词短语中作介词宾语充当除宾语以外的其它成分时，变。
例1 He is a boy student .They are（some）boy students. （man和woman）除外。 例2 She is a woman worker.
They are（some）women workers.
10、 单数句变为复数句时，句式不能改变，即单数句是疑问句时， 变为复数句时，仍然是疑问句。 例1 What’s this？ What are these？
例2 She likes his bike. They like their bikes.
【巩固练习】
一 将下列单数句变为复数句 1 This is a book . 2 Is that a pen？ 3 She is a girl . 4 I like her.
5 The book is mine. 6 This is her pen. 7 I am a teacher.
8 He is a boy student . 9 She is a woman worker. 10 He likes his bike.
二 将下列复数句变为单数句 1 What are these？ 2 They like their bikes. 3 These are my books .
4 These are（some）books . 5 Are those（any）pens？ 6 They are girls . 7 We like them.
8 These are（some）books . 9 Are those（any）pens？ 10 They like my bikes.
2
该名词不 【课外拓展】
一、 将下列单数句变为复数句 1 These are（some）books . 2 Are those（any）pens？ 3 They are girls . 4 We like them. 5 The books are ours. 6 These are their pens.
7 We are（some） teachers. 8 They are（some）boy students. 9 They are（some）women workers. 10 They like their bikes. 二、 将下列复数句变为单数句 1 What is this？ 2 He likes his bike 3 This is my book . 4 This is a book . 5 Is that a pen？ 6 She is a girl . 7 I like her.
8 This is a book .. 9 Is that a pen？ 10 He likes my bike.
第二节 肯定句变否定句
【知识梳理】
把肯定句改成否定句分以下情况：
1、 句中有be动词的，在be动词后加not；
2、 句中有情态动词的（can ,should，must ，would），在情态动词后面加not； 3、 句中没有be动词和情态动词的，在动词前加don’t或doesn’t ； ① 句中动词为原形的，加don’t .如： I like apples. I don’t like apples. ①句中动词为三单式的，加doesn’t，并将三单式的动词还原成原形。
如：He likes apples. He doesn’t like apples.
①时态为过去时的,要加didn’t 而且动词过去式要改为原形, 例:I went to school yesterday .→I didn’t go to school yesterday . 4.肯定句中的some在否定句中应改为any
如：There are some students in the classroom.
There are not any
【例题精讲】 例如：
students in the classroom.
3
1． 肯定句和否定句的互换 肯定句：This is a book. 否定句：This is not a book. 没有am, is, are的句子， 肯定句变否定句：在主语后面加上do not或者does not,其余按顺序照抄动词用原形 肯定句变一般疑问句：在句首加do或者does并大写,其余照抄。注意：动词用原形
2.划线部分不能在特殊疑问句中出现。 非单三时用do, 单三时用does 非单三 肯定句：I like English.
否定句：I do not like English.
单三 肯定句：He likes English.
否定句：He does not like English.
特殊：1.some变为any。如：
There are some birds in the tree. →There aren't any birds in the tree. 但是，若在表示请邀请、请求的句子中，some可以不变。如： Would you like some orange juice?
与此相关的一些不定代词如something, somebody等也要进行相应变化。 2.and变为or。如：
I have a knife and a ruler. →I don't have a knife or a ruler. 3.a lot of (=lots of)变为many或much。如：
They have a lot of friends.（可数名词）→They don't have many friends. There is lots of orange in the bottle.（不可数名词） →There isn't much orange in the bottle. 4.already变为yet。如：
I have been there already. →I haven't been there yet.
【巩固练习】 将下列各句改成否定句
1、Tom’s brother is walking in the park.
______________________________________________________ 2、His father is driving a bus.
______________________________________________________ 3、The students of Class 5 are cleaning the classroom.
______________________________________________________ 4、Their dog is playing in the room.
______________________________________________________ 5、Tom and Mary are friends.
______________________________________________________ 6、These buses are new.
4
______________________________________________________ 7、There are some books in the bookcase.
______________________________________________________ 8、There is a banana in the box.
______________________________________________________ 9、I’m a student.
______________________________________________________ 10、She is a farmer.
______________________________________________________ 11、Your father can ride a bike.
______________________________________________________ 12、Mr. Li can draw pictures.
______________________________________________________ 13、They can play football after school.
______________________________________________________ 14、I can go to Shanghai Zoo.
______________________________________________________ 15、You should climb the tree.
______________________________________________________ 16、We come from China.
______________________________________________________ 17、It’s time for sports.
______________________________________________________ 18、We like the mask.
______________________________________________________ 19、He likes the violin.
______________________________________________________ 20、Have some bread, Tom.
______________________________________________________ 21、Please open your books.
5
______________________________________________________ 22、I like Chinese、Maths、Art and PE.
______________________________________________________ 23、Listen to the radio, please.
______________________________________________________ 24、Kick the ball to me.
______________________________________________________ 25、Peter, drink some juice, please.
______________________________________________________ 26、Please watch TV.
______________________________________________________ 27、I am a bus driver.
______________________________________________________ 28、The dog can jump.
______________________________________________________ 29、Today is Monday.
______________________________________________________ 30、They are good friends.
______________________________________________________
【课外拓展】 一、单项填空。
根据句意，从每题所给的A、B、C、D四个选项中，选择可以填入空白处的最佳答案。 ( )1.-- Good morning! -- A.Morning ! B.Hello ! C.Hi !
( )2.--Nice to see you again ! -- .
A.How are you ? B.Nice to see you , too . C.How do you do ? ( )3.--Good night,mom ! --
A.Night ! B.Good night ! C.Good evening . ( )4.--How do you do ?--
A.How are you ? B.Fine,thanks . C.How do you do ? ( )5--.How many story books do you have ? -- A.I have 10. B.I can see 10. C.Thirty yuan. ( )6.--Do you have new teachers?-- A.Yes,we do . B.Yes,we don’t. C.Yes,we have .
6
( )7.--Who’s your art teacher ?-- A.Mr Zhu. B.Miss Zhu. C.He’s tall. ( )8.--What’s he like?--
A.He’s tall and strong . B.Yes,he is. C.Mr Zhu. ( )9.--Is your English teacher young? -- A.No,she isn’t. B.Yes,she is . C.No,she is. ( )10.-- --- Her name is Chen Jie.
A.What’s your name ? B.What’s she name ? C.What’s her name ?
二、阅读下面短文，根据短文内容，从每题所给的A、B、C、D四个选项中，选择可以填入空白处的最佳答案。
My name is Wang Li. My English teacher 1 Linda. She is from the USA. 2 has a son and a daughter. 3 is Ben. 4 is Maria. Her husband is 5 .
Black is 6 , too. He and his son are 7 New York now. Mrs Black and Maria are in China. 8 are classmates, and we are 9 . I teach her Chinese and 10 teaches me English.
（ ）1．A．be B．is C．am D．are （ ）2．A．She B．Her C．He D．His （ ）3．A．His son B．His daughter C．Her son D．Her daughter （ ）4．A．His son B．His daughter C．Her son D．Her daughter （ ）5．A．Black Paul B．Paul Black C．Black Anna D．Anna Black （ ）6．A．a student B．an English student C．a Chinese teacher D．an English teacher （ ）7．A．at B．from C．in D．on （ ）8．A．Ben and I B．I and Ben C．Maria and I D．I and Maria （ ）9．A．good friend B．a good friend C.good friends D．friend （ ）10．A．he B．she C．they D．her
第三节 肯定句变一般疑问句
【知识梳理】
一、含有be动词的一般疑问句,通常把be动词调到句首。例如:
陈述句:They are in the swimming pool.
一般疑问句:Are they in the swimming pool? 注意:一般疑问句句末要用“?”。
二、含有情态动词的一般疑问句(can, may...),把情态动词调到句首。例如: 陈述句:He can drive a car
一般疑问句: Can he drive a car?
三、含有have的一般疑问句,have译为“有”。一般疑问句式有两种形式: 1.把have/has调到句首。例如: 陈述句:Tommy has a computer.
一般疑问句:Has Tommy/he a computer?
2.加助动词do/does,第三人称单数用does,其他人称用do。其句型为:Do/Does + 主语 + have...?例如上句可变为:
Does Tommy have a computer? 四、一般动词的一般疑问句,也要借助助动词do/does,第三人称单数用does,其余人称用do。
7
其句型为:Do/Does + 主语 + 动词原形+其它? 陈述句:Amy speaks English.
一般疑问句:Does Amy speak English?
五、知道了如何问话之后,我们来了解一下如何回答一般疑问句。首先要有人称的改变。当主语
为名词时,在答语中要改成其相应的代词。另外,答语有两种,肯定的回答(用yes)和否定的回
答(用no),否定式常用缩写形式。现在还是让我们分句型一一说明。
【例题精讲】
一、一般疑问句含be动词时,用be动词回答,句末用句号。例如: -Is Mary your sister?
-Yes, she is. / No, she isn’t.(缩写)
二、一般疑问句含有情态动词(can, may, should等)时,用情态动词回答。例如: -May I come in?
-Yes, you may. / No, you can’t.
三、一般疑问句含有have(译为“有”)时,有两种回答方式。 1.直接用have/has回答。例如: -Have they any pictures?
-Yes, they have. / No, they haven’t. 2.用助动词do/does回答。例如: -Does Millie smoke?
-Yes, she does. / No, she doesn’t.
四、一般动词的一般疑问句回答时也用助动词。例如: -Do the workers live in London? -Yes, they do. / No, they don’t.
【巩固练习】
一、根据句后括号内的要求，填入句中所缺的词： 1.I know the answer.(一般疑问句) ______ ______ know the answer?
2.We can see some birds.(一般疑问句) ______ ______ see ______ birds?
3.There is a computer in my house.(一般疑问句) ______ ______ a computer in house?
4.There are some flowers on the teacher’s desk.(一般疑问句) ______ ______ ______ flowers on the teacher’s desk? 5.There are some apples on the tree.(否定句) There ______ ______ ______ apples on the tree. 6.I think he is very old.(否定句) I ______ think he ______ very old. 7.Please colour it green.(否定句) ______ ______ colour it green.
8.We can speak good English.(变否定句)
8
We ______ ______ speak good English. 二、陈述句变一般疑问句 1. His father is an English teacher.
2. These cats are crying.
3. They can swim.
4. I like to read English.
5. I go to school on foot.
6. He likes English.
7. His father goes to work by bus.
8. He is crying under the tree.
9. His birthday is on the twentieth of November.
10. Mrs. Li and Kitty are in a big shop.
9
因篇幅问题不能全部显示，请点此查看更多更全内容