七上单复数句子互相转化
七年级英语-名词单复数形式转换（大全）
七年级英语-名词单复数形式转换（大全）第一篇：七年级英语-名词单复数形式转换（大全）英语中【可数名词】：“单数形式”变“复数形式”英语中的可数名词，大多都有单数和复数两种形式，单数形式变成复数形式，几种主要方式是： 1.在名词后直接加-s，如：a book → booksa cat → cats 2.以s, x, ch, sh结尾的名词加-es构成复数，如：a bus → busesa box → boxesa watch → watchesa dish →dishes 3.以“辅音字母+ y”结尾的名词，构成复数时，需将y改为i，然后加复数词尾-es，如：a dictionary → dictionariesa strawberry → strawberries a family → familiesa country → countries ★ 注意：以元音字母加y结尾的，加-s：a boy → boysa key → keys4.以f或fe结尾的名词构成复数时，一般改f为v，再加-es，如：a knife → knivesa leaf → eaves ★ 注意：但也有例外，例外的词有：a roof → roofsa cliff → cliffs 等等5.以元音字母o结尾的名词, 一般加-es词尾构成复数，如：（有生命的名词）。
[口诀] 黑人英雄爱吃西红柿和马铃薯，有意思（es）a negro → negroesa hero → heroes a tomato → tomatoesa potato → potatoes ★ 注意：但也有例外，加-s，例外的词有：（无生命的名词）a photo → photosa piano → pianosa radio → radios 等等6.有些名词复数有不规则变化，如：a man → mena woman → womena tooth → teetha foot → feeta child → childrena mouse → mice 7.有些名词单复数形式相同，如：a sheep → sheepa deer → deer 名词复数形式还有一些其它情况，请同学们在阅读和学习过程中不断丰富，逐步掌握。
七上单复数句子互相转化
单复数句子互相转化1. This is a girl.（变为复数句子）2. Those are pencil cases. （变为单数句子）3. Those aren't my brothers.（变为单数句子）4. These are my friends. （变为单数句子）5. Those photos are great.（变为单数句子）6. Those are Dave's pictures.（变为单数句子）7. Those are pencils.（变为单数句子）8. Thank you for your nice photo.(变为同义句)单复数句子互相转化1.This is my friend.(变为复数)2.He is my brother.(变为复数)3.Is this his daughter?(变为复数)4. Those are sisters.(变为单数)5. Are these your sons?（变为单数)6. Tom和JIm的房间(各自的_______; 共同的______)I.写出下列名词的复数形式。
1. desk2. eraser3. friend ________4. boy ________5. box _boxes_______6. class ________7. watch ________8. wish ________9. leaf ________ 10. family ________ 11. wife ________ 12. dictionary _____ 13. man ________ 14. woman ________ 15. child ________ 16. foot ________ II. 句式转换。
1. That's my sister. (改为复数形式) ________ are my ________ .2. This is an egg. (改为复数形式) ________ ________ eggs.3. Those are her cousins. (改为单数形式) ________ ________ her ________ .4. These are his brothers. (改为单数形式) ________ ________ his ________ .5. His brother is a worker. (改为一般疑问句) ________ ________ brother a worker ?6. These are your brothers. (改为否定句) ________ ________ your brothers.7. She is my aunt. (改为一般疑问句) ________ she ________ aunt?8. His keys are on the sofa. (改为一般疑问句并作简短肯定、否定回答)________ ________ keys on the sofa? Yes,______ ______ . _______, they _______.9. Her backpack is on the bed. (画线提问) ________ ________ her backpack?10. The baseballs are under the sofa. (画线提问) _______ ________ _______ ______I.选用恰当的代词填空。
七年级英语怎样句型转换
七年级英语怎样句型转换在七年级的英语中，句型转换也是一个重要知识，那么七年级英语怎样句型转换呢?下面是店铺为你整理的七年级英语句型转换的方法，希望大家喜欢!七年级英语句型转换的方法单数句与复数句相互改写将句子改为复数句或单数句的关键是“牵一发而动全身”，要注意人称代词和物主代词的单复数的相互转化，动词的原形和第三人称单数的相互转化，名词以及量词的单复数的相互转化。
这就要求同学们对相关知识要熟练掌握。
例如：She has a tennis racket. 改成复数句为：They have some tennis rackets.。
由此能够看出主语变了，其后的动词也变了，一个网球拍变成了一些网球拍。
Those are backpacks.改成单数句为：That is a backpack.。
改为一般疑问句将陈述句改为一般疑问句分两种情况。
第一种是句子中含有be动词(常见的有am，is，are)。
这种情况只需把be动词提到句首，将句号变为问号即可。
特别注意：如果陈述句中主语是第一人称的I，那么在变为一般疑问句时将其变为第二人称，同时其所对应的be动词也要跟着改变。
例如：I am a teacher.变为一般疑问句应该为Are you a teacher?。
第二种情况是句子中不含be动词。
在这类陈述句中要借助于do 或does，do和does 的选择是根据句子主语的人称和数来定的：(1)当主语为第三人称单数形式或不可数名词的时候，用does;(2)主语为第一人称、第二人称，以及表示复数意义的词做主语时，用do。
(3)另外还可以根据陈述句中的动词是否为第三人称单数形式来判断。
例如：1) Tim has a good watch.变为一般疑问句为Does Tim have a good watch? 2) T om and Jerry like playing football 变为一般疑问句为 Do Tom and Jerry like playing basketball?一些题目要求改写句子之后做相应的回答，只要一般疑问句改写正确之后，相应的回答也就迎刃而解了。
(完整版)单数句变复数句六绝招
单数句变复数句六绝招单数句变复数句是七年级英语试题中的一个题类，小学英语一般很少涉猎，进入初中，有的同学在做类似题时往往丢三落四，容易出错。
只要注意下面的六要素，问题便迎刃而解：1．人称代词主格单数变成相应的人称代词主格复数，即I→we;you→you;she,he,it→they。
如：She is a girl.→They are girls.2．am, is 变为are。
如：I'm a student. →We are students.3．不定冠词a, an 要去掉。
如：He is a boy. →They are boys.4．普通单数名词要变为复数形式。
如：It is a cat. →They are cats.5．指示代词this, that 变为these, those。
如：This is a book.→These are books.6．man, woman 作定语修饰可数名词时，要在"数"上与被修饰名词保持一致。
但其他名词修饰名词表示"性质"时，不作变化。
如：He is a man doctor.→They are men doctors.This is an apple tree.→They are apple trees.※记住单数句变复数句的口诀。
单数句子变复数，变化规则要记住。
名词代词要变化，am, is 要变are。
this, that 该咋办，these, those 替代它。
he, she, it 要变啥，全部变they 就行了。
I要变we 别落下，名词后面把s/es加。
名前冠词去掉它，其余成分原样加。
但是，在英语中有些单数句不能变为复数句，如：Lily is fourteen.(莉莉十四岁。
)His name is Jim.(他的名字叫吉姆。
)等。
单数句变复数句练与析安徽巢湖●万小泉同学们都会把单数可数名词变为复数形式，可当我们在做“将单数句变为复数句”这种题目时，常常会“顾此失彼”，出现不少错误。
七年级英语上册Unit1-6句型转换
七年级英语上册U n i t1--6句型转换专练◆怎样将一个单数句子转换为复数句子①看主语，将句子中单数主语转变为复数。
this → these that → those I → we he/she/it → they eg: This is my sister. → These are my sisters.She is my teacher. → They are my teachers.②看谓语，把be( am is )改成are,把has改为have，等。
eg：I am a boy. → We are boys.She has an English book. → They have English books.③看名词，把单数名词改成相应的复数名词，把不定冠词a/an 去掉。
eg: This is my sister. → These are my sisters.It is a watch. → They are watches./They are some watches.④疑问词（what who where……）,介词短语（in English……）不变。
eg: What′s this in English？→ What are these in English?练习：（将下列单数句子改写成复数句子）1.This is my friend.2.That is his parent.3.He is my son4.It is a watch.◆陈述句转换为一般疑问句1、把be动词放在句首，剩下的照抄，（some 改成any，I改成you, my改成your等）句点改成问号。
2、把can，shall，will等放到句首，剩下的照抄，（some 改成any，I改成you, my改成your等）句点改成问号。
例如：陈述句: They are in the park. He can play the guitar..一般疑问句: Are they in the park? Can he play the guitar?把下列句子变成一般疑问句1. Ths is my sister.2. Mike is a student.3. Sarah can clean the classroom.4. They are in the zoo.◆肯定句改否定句的方法——一步法1、 在be 动词后加not 。
七年级英语上册语法(可数名词复数变化规律)
七年级英语上册语法：可数名词单数变复数规律及读音
一、可数名词单数变复数规律
1. 一般在名词的词尾加-s。
如：banana --- bananas
2. 以-s , -x, -sh, -ch 结尾的名词, 在词尾加-es构成复数形式．
如：watch --- watches，box --- boxes
3. 以辅音字母加o 结尾的名词，则加-es.
tomato---tomatoes,potato---potatoes,hero---heroes, Negro ---Negroes （黑人英雄喜欢吃西红柿和马铃薯）
以元音字母加o 结尾的名词，则直接加-s。
如radios, zoos特例：photos(缩略词），pianos（外来词）
4. 以辅音字母加-y 结尾的名词，则把-y改为i，加-es.
如：family --- families
以元音字母加ｙ结尾的名词，直接在ｙ后加ｓ。
如：boys，days
5. 以-f 或-fe 结尾的名词，则把-f, -fe改为v，再加-es.
如chief --chieves（小偷）,wife--wives（妻子）,
knife --- knives（小刀）, leaf--leaves（叶子）,
wolf--wolves（狼）, life --- lives（生命）
6. 有些名词以不规则来构成复数形式．
如：man --- men（男人）, woman --- women （女人）child—children（孩子）
7. 有些名词单复数相同．如：sheep --- sheep （羊）deer—deer（鹿）Chinese （中国人）
二、复数名词词尾的读音。
单数句和复数句的转换
单数句和复数句的转换日常练习中，大家经常会遇到单数句与复数句的转换。
现在我们就来学一学如何在二者之间进行转换。
[操练] 按要求完成单数句与复数句的转换。
1. That is a rubber. (改为复数句)2. These are apples. (改为单数句)3. This is a photo. (改为复数句)4. They are girls. (改为单数句)[秘诀]将单数句变为复数句，通常要遵循的规则是：变、删、留。
[融会贯通]变：将单数句中的指示代词、人称代词、物主代词、名词及动词变为对应的复数形式，如this→these, that→those, he / she / it→they, I→we, my→our, his / her /its→their, am / is →are, does→do等。
删：将单数句中的不定冠词a / an删掉。
如：That is a watch. → Those are watches.留：保留单数句中的形容词、定冠词the、副词、疑问词、介词等。
如：This is a nice book.→These are nice books.What is that?→What are those?The boy in red is my cousin.→The boys in red are our cousins.He usually does his homework at home.→They usually do their homework at home.要将复数句变为单数句时，逆向进行转换即可。
Key：1. Those are rubbers.2. This is an apple.3. These are photos.4. She is a girl.。
单数句变复数句六绝招
单数句变复数句六绝招单数句变复数句是七年级英语试题中的一个题类，小学英语一般很少涉猎，进入初中，有的同学在做类似题时往往丢三落四，容易出错。
只要注意下面的六要素，问题便迎刃而解：1．人称代词主格单数变成相应的人称代词主格复数，即I→we;you→you;she,he,it→they。
如：She is a girl.→They are girls.2．am, is 变为are。
如：I'm a student. →We are students.3．不定冠词a, an 要去掉。
如：He is a boy. →They are boys.4．普通单数名词要变为复数形式。
如：It is a cat. →They are cats.5．指示代词this, that 变为these, those。
如：This is a book.→These are books.6．man, woman 作定语修饰可数名词时，要在"数"上与被修饰名词保持一致。
但其他名词修饰名词表示"性质"时，不作变化。
如：He is a man doctor.→They are men doctors.This is an apple tree.→They are apple trees.※记住单数句变复数句的口诀。
单数句子变复数，变化规则要记住。
名词代词要变化，am, is 要变are。
this, that 该咋办，these, those 替代它。
he, she, it 要变啥，全部变they 就行了。
I要变we 别落下，名词后面把s/es加。
名前冠词去掉它，其余成分原样加。
但是，在英语中有些单数句不能变为复数句，如：Lily is fourteen.(莉莉十四岁。
)His name is Jim.(他的名字叫吉姆。
)等。
单数句变复数句练与析安徽巢湖●万小泉同学们都会把单数可数名词变为复数形式，可当我们在做“将单数句变为复数句”这种题目时，常常会“顾此失彼”，出现不少错误。
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单数句变复数句单数句变复数句精炼一将下列单数句变为复数句1 This is a book .2 Is that a pen3 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 these2 They like their bikes.3 These are my books .4 These are（some）books .5 Are those（any）pens6 They are girls .7 We like them.8 These are（some）books .9 Are those（any）pens10They like my bikes.三将下列名词变为复数形式单数句变复数句精炼答案一将下列单数句变为复数句1 These are（some）books .2 Are those（any）pens3 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 this2 He likes his bike3 This is my book .4 This is a book .5 Is that a pen6 She is a girl .7 I like her.8 This is a book ..9 Is that a pen10 He likes my bike.三将下列名词变为复数形式map egg apple orange penbox bus girl boy babyknife photo tomato man womanmilk water desk table bike单复数句子互相转化1. This is a girl.（变为复数句子）2. Those are pencil cases. （变为单数句子）3. Those aren't my brothers.（变为单数句子）4. These are my friends. （变为单数句子）5. Those photos are great.（变为单数句子）6. Those are Dave's pictures.（变为单数句子）7. Those are pencils.（变为单数句子）8. Thank you for your nice photo.(变为同义句)单复数句子互相转化is my friend.(变为复数)is my brother.(变为复数)this his daughter(变为复数)4. Those are sisters.(变为单数)5. Are these your sons（变为单数)6. Tom和JIm的房间(各自的_______; 共同的______)I.写出下列名词的复数形式。
1. desk2. eraser3. friend ________4. boy ________5. box _boxes_______6. class ________7. watch ________8. wish ________9. leaf ________ 10. family ________ 11. wife ________ 12. dictionary _____ 13. man ________ 14. woman ________ 15. child ________ 16. foot ________ II. 句式转换。
1. That's my sister. (改为复数形式) ________ are my ________ .2. This is an egg. (改为复数形式) ________ ________ eggs.3. Those are her cousins. (改为单数形式) ________ ________ her ________ .4. These are his brothers. (改为单数形式) ________ ________ his ________ .5. His brother is a worker. (改为一般疑问句) ________ ________ brother a worker6. These are your brothers. (改为否定句) ________ ________ your brothers.7. She is my aunt. (改为一般疑问句) ________ she ________ aunt8. His keys are on the sofa. (改为一般疑问句并作简短肯定、否定回答)________ ________ keys on the sofa Yes,______ ______ . _______, they _______.9. Her backpack is on the bed. (画线提问) ________ ________ her backpack10. The baseballs are under the sofa. (画线提问) _______ ________ _______ ______I.选用恰当的代词填空。
1. ________ have a ruler. But ________ ruler is short. Can you give ________ a long ruler (I, me, my)2. ________ are a good boy. What's ________ name (you, your)3. ________ is a teacher. ________ name is Wang Li. (she, her)4. David is an American boy. ________ is twelve. ________ English is not good. Please help ________ . (he, him, his)5. This is ________ school. ________ study English here. Do you want to join ________ (we, us, our)6. Look at ________ ! ________ are from England. ________ names are Lucy and Lily. (they, them, their )综合:7. ________ have a good friend. ________ name is Tom. ________ parents work inChina. ________ are teachers. Look, this is ________ photo. How happy ________ are!8. Thank ________ for helping ________ , Dale. I can do ________ homework now. Let________ go to a movie. ________ think ________ is a funny movie.IV.用动词be (am, is, are)填空。
1. She ________ a teacher. Her name ________ Mary.2. I ________ a boy. My name ________ Li Ming.3. Who ________ this girl She ________ Li Mei.4. How old ________ you I ________ eleven.5. What ________ this It ________ a bird. Its name ________ Polly.6. David ________ a student. His sister ________ a student, too.7. These books ________ blue. They ________ English books.8. Li Lei ________ at school today. He ________ drawing a picture now.9. Amy and Kay ________ here. They ________ not at home.10. ________ you teachers No, we ________ not. We ________ students.11. My favorite color ________ blue.12. Tom's brother ________ not in the room.。