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单复数要点：单复数是在名词上做手脚。
不可数（如：water, milk等单词，be动词用is）名词单数可数（be动词搭配：I 用am, you用are，单数is复数are）复数1.可数名词变复数形式（1）绝大多数可数名词变复数，直接+scat- cats sweater- sweaters subject- subjects pepper- peppers （2）+es :➢以ch, sh, x, s, z结尾的可数名词变复数，在末尾+eswatch- watches dish- dishes fox- foxes dress- dresses➢部分以o 结尾的可数名词变复数，也在末尾+estomato- tomatoes potato- potatoes hero- heroes （3）以辅音字母+y 结尾的可数名词，改y为i，再+esfamily- families butterfly- butterflies story- stories candy- candies （4）以-f或-fe结尾的可数名词，多为将-f或-fe改变为-ves，但有例外。
life- lives leaf- leaves wolf- wolves scarf- scarves （或scarfs）例外：roof→roofs（5）不规则型可数名词变复数tooth- teeth foot- feet sheep- sheep mouse- micechild- children（6）例句：（画横线的单词都能表明单复数）He is a boy. 他是个男孩。
Mary and I are in Class 6. 我和Mary在6班。
Are these tomatoes? 这些是西红柿吗？How many seasons are there in a year? 一年里有多少个季节？There are 4 seasons in a year. 一年里有4个季节。
人教精通小学英语四年级下知识点一．名词/代词单数变复数:特殊情况：1)单复数同形的名词：sheep；fish; bread; rice; noodles; beef; pork; chicken; fruit; kiwifruit;2)以o结尾的名词：hippo s; potato e s; tomato es;3)一般名词变复数直接加s: U6中giraffes; camels;tigers...U5中 sausages;cake(s)... (U1,U2 名词类似）二．词组搭配read a book; watch TV; play a computer games; go shopping;go swimming; go fishing三．知识点1.like+doing ; I like drawing.2.want +to do ; I want to buy a bear.3.would like +to do; I’d like to have a picnic.4.How/What about +doing;Today is Sunday. What/How about going swimming?5.There be( is/are)There is a bed in the bedroom.There are 2 beds in the bedroom.6.a/an 用法a storybook-------an English storybooka boy ---------------an English boyan art lesson; an armchair; an apple; an elephant;an eraser;四．句型转换（一）含有be动词的句子：原句一般疑问句肯/否回答否定句1.She is a girl.Is she a girl? Yes,she is./No,she isn’t. She is not a girl.2.They are students.Are they students? Yes,they are./No,they aren’t. They are not students.3.I am a teacher.Are you a teacher? Yes, I am./No,I am not. I am not a teacher.练习：把下面句子分别变成一般疑问句，肯定否定回答，以及变成否定句。
小学英语名词变复数练习试题一、名词名词可以分为可数名词与不可数名词，其中可数名词具有单、复数的形式；而不可数名词没有复数形式。
1. 从单数复数，变形规则如下：1．一般情况下，直接加-s，如：book-books,bag-bags, cat-cats, bed-beds2．以s. x. sh. ch结尾，加-es，如：bus-buses, box-boxes, watch-watches3．以“辅音字母+y”结尾，变y为i, 再加-es，如：family-families（家庭）,strawberry-strawberries（草莓）4．以“f或fe”结尾，变f或fe为v, 再加-es，如：knife-knives 5．不规则名词复数：man-men, woman-women, policeman（男警察）-policemen, policewoman（女警察）-policewomen, mouse-micechild（孩子）-childrenfoot-feet,. tooth-teethfish-fish, sheep（羊）-sheep people-people, Chinese-Chinese, Japanese-Japanese,当people后加上s时即peoples表示“民族”例如：There are 56 peoples in China. 中国有56个民族。
2.以下词为常为不可数名词，他们的复数形式就是他们本身。
Water(水) milk(牛奶) tea(茶) rice(米饭) orange（橙汁）juice （果汁）bread（面包）练习题写出下列各词的复数I _________this ___________that___________ watch _______child _______photo________diary _________day________ foot________ book_______ dress ______________tooth_______ sheep ______box_______ strawberry _____________ thief _______yo-yo ______ peach______ sandwich _______________ man______ woman_______ paper_______juice____________________water________ milk________ rice__________ tea_______________-注意be 动词遇到名词时的运用: 单数名词用is, 复数名词全用are.名词单复数讲解及练习名词单复数（1）名词可以分为可数名词和不可数名词，不可数名词没有单复数，一律看作单数。
小学英语语法：名词1.名词分为专有名词和普通名词。
如：GuangZhou，Mike，UNESCO等。
专有名词一般情况下第一个字母要大写，前面不加定冠词the。
如：police，eggs，rice等。
表示某一类人或某一类东西中的个体。
如：monkey，panda，ruler，boy等。
表示一群人或一些事物的总称。
如：family，police，class，people等。
Water，air，milk等。
hope，love，spirit。
1.定义：一般来说，个体名词和集体名词多为物质名词和抽象名词多为2.可数名词的数：表示“一个”时用单数，a bird，a teacher，an apple，表示“多个”时用复数。
two birds，five teachers，eight apples.3.可数名词复数的变化规则.A、一般情况下，在单数名词的后面加-s构成。
如：game-games，boy-boys等。
B、以s、x、sh、ch结尾的单数名词变复数，在词尾加-es构成。
如：box-boxes，bus-buses，peach-peaches，dish-dishes。
C、以o结尾，表示有生命的事物的单数名词变复数加-es；表示没有生命的事物的单数名词变复数加-s。
如：potato-potatoes，tomato-tomatoes，photo-photos，piano-pianos等。
D、以辅音字母加y结尾的单数名词变复数，将y改成i后再加-es。
如：factory-factories，story-stories，family-families。
E、以f或fe结尾的单数名词变复数，将f或fe改成v，然后再加-es。
如：leaf-leaves，life-lives，knife-knives等。
F、名词单数变复数，除了有规则可循的变化之外，还有一部分的变化是不规则的，我们将这部分名词的变化叫做不规则变化。
这些词有：goose-geese，foot-feet，tooth-teech，man-men，woman-women，mouse-mice，sheep-sheep，deer-deer，fish-fish，child-children，ox-oxen 4.不可数名词量的表示需给这些词计量，我们于是采用这种方法：如：a cup of tea，a box of milk，a piece of paper等。
语法练习（单数句和复数句）1．可数名词：可以数数的名词。
分为1.单数名词2. 复数名词.2．单数名词变成复数的规则：1.一般情况：在词的后面加-s eraser --- eraser sgirl --- girl s desk --- desk s2.以-ch,-sh,-x, -s 结尾时，单词后面加-es watch --- watch bus --- bus es3.以-ce,-se, -dge, -ge结尾时，单词后面加-s case --- case s4.以辅音字母加y 结尾时，把y变成i然后加-es family --- famil ies发音规则：1.清辅音后发/ s / , 浊辅音和元音后发/ z /.2.规则2中发/ iz /.3.规则3 中发/ iz /.4.规则4中发/ z /.清辅音：浊辅音：3．一些词的复数形式。
is , am --- are this --- these he, she,it --- they *my --- our（我们的）*a, an ---- some that --- those * I --- we(我们) * his ,her,its --- their（他们的）4．注意:复数句变单数句时：1.句中有my,his,your,her…等形容词性物主代词时,不写a/anThese are my friends. --- This is my a friend. (×)2.句中复数名词前有形容词时，在改后的形容词前面加a /an .Those are English books. --- That is an English book.单数句变复数句时：1.如果句中有a ,an就把a , an 变成some.2.可以变得名词，代词，be 动词都变成复数。
练习：把下面句子变成单数句或复数句。
A. 1.This is my pen friend. 2. That is his school ID card.3.This is an orange.4. That is her dictionary.5.He is my parent.6. She is his sister.7.He is my brother. 8. She is her daugher.9.It is an apple. 10. It is an English watch.B. 1.These are pencils . 2. Those are computer games.3. These are gold rings.4. Those are backpacks.4.They are girls. 6. They are notebooks.7.They are boys. 8. They are my English books.９. They are some photos. 10. They are some girls.11.These are some families. 12. Those are some chairs.适当词填空：1．This is a boy._____ name is Peter Hall. ______ is 14.() .______ is in Class Three, Grade One.2. This is a girl._____ name is Karen Suarez. _____ is 11. _____ is in Class Three ,too.3.Who’s that?Oh,_____ is Mary. _____ is a teacher.4.This ia my father. _____ name is David Kim. ____ first name is David and ____ last name is Kim.( ____ family name is Kim.)5. Maria Wartz is a teacher. _____ is very young(). ____ is very nice.6.Jim Moore is my brother.____ is very lovely. ____ father and ____ mother love him()。
小学英语语法大全一、名词复数规则1．一般情况下，直接加 -s，如： book-books, bag-bags, cat-cats, bed-beds2．以 s. x. sh. ch 结尾，加 -es ，如：bus-buses, box-boxes,brush-brushes, watch-watches3．以“辅音字母 y ”结尾，变 y 为 i, 再加-es ，如：family-families, strawberry-strawberries4．以“f或 fe ”结尾，变 f 或 fe 为 v, 再加-es ，如：knife-knives ] Leaf —— leaves5．不规则名词复数：man-men, woman-women, policeman-policemen,policewoman-policewomen,child-childrenfoot-feet,.tooth-teethfish-fish, people-people, Chinese-Chinese,Japanese-Japanese写出下列各词的复数I _________him _________this ___________her ______watch _______child _______photo ________diary ______day________ foot________ book_______ dress ________tooth_______ sheep ______box_______ strawberry _____peach______ sandwich ______dish_______bus_______man______ woman_______二、一般现在时一般现在时基本用法介绍【No. 1 】一般现在时的功能1.表示事物或人物的特征、状态。
如：The sky is blue. 天空是蓝色的。
英语语法专项练习句子专项训练3一、把下列单数句改为复数句。
1.That tree is in front of my house.Those trees are in front of my house.答案解析：单数句改为复数句，主要是将主语和谓语等对应改为复数就可以了。
that→those，tree→trees，is→are2.There is a book on the desk.There are some books on the desk.答案解析：单数句改为复数句，主要是将主语和谓语等对应改为复数就可以了。
is→are，a→some，book→books3.There is a woman near the house.There are some women near the house.答案解析：单数句改为复数句，主要是将主语和谓语等对应改为复数就可以了。
is→are，a→some，woman→women4.I’m a student.We are students.答案解析：单数句改为复数句，主要是将主语和谓语等对应改为复数就可以了。
I→we，am→are ，studen t→students5.She is a doctor.They are doctors.答案解析：单数句改为复数句，主要是将主语和谓语等对应改为复数就可以了。
she→they ，is→are，doctor→doctors.6.There is a picture on the wall.There are some pictures on the wall.答案解析：单数句改为复数句，主要是将主语和谓语等对应改为复数就可以了。
is→are，a→some，picture→pictures7.Is there a baby in the room?Are there any babies in the room?答案解析：单数句改为复数句，主要是将主语和谓语等对应改为复数就可以了。
句子单数变复数1. 主格人称代词要变成相应的复数主格人称代词，即I→We, you→you, she/ he/ it→they. 如：She is a gril. →they are girls.2. am, is要变为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 an apple. →They are apples.• 5. 指示代词this, that要变为these, those, 如：•This is a box. →These are boxes.• 6. man, woman等名词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：•①She is a woman doctor. →They are women doctors.•②That is a banana tree. →Those are banana trees.•1、This is a bike.• 2.That is her book.• 3.That is an eraser.• 4.It is a red orange.• 5.He is a teacher.• 6.What'sthis?•7.This is a Chinese boy.•8.This is my mother.•9.I am a student.•10.A photo is on the wall•.•11.It is an action movie.将下列句子改为单数句或者复数句1.That T-shirt is yours._________________________________________________________________________2.This crayon is mine._________________________________________________________________________ 1.The caterpillars are small and brown._________________________________________________________________________ 2.It was a chick._________________________________________________________________________ 4. This is an motorbike._________________________________________________________________________ I liked eating meat and fish._________________________________________________________________________ Are these shoes your sisters’?(改成肯定句)_________________________________________________________________________3.Are those storiesbooks hers too?（改成肯定句和过去时）_________________________________________________________________________ _________________________________________________________________________3.The chick likes eating worms. （改成过去时）_________________________________________________________________________ The little boy feeds the chicks everyday. （改成现在进行时时态）_________________________________________________________________________ The silkworms can make a lot of silk. （改成现在进行时时态和一般过去时）_________________________________________________________________________ _________________________________________________________________________欢迎您的下载，资料仅供参考！。
(表⽰作为⽔) →Miss"祈"加⼊"-s"或"-es第三，我的变化--否定句、⼀般疑问句、特殊疑问句：1. be动词的变化。
否定句：主语+ be + not +其它。
如：He is not a worker.他不是⼯⼈。
⼀般疑问句：Be +主语+其它。
如：-Are you a student?-Yes. I am. / No, I'm not.特殊疑问句：疑问词+⼀般疑问句。
如：Where is my bike?2. ⾏为动词的变化。
否定句：主语+ don't( doesn't ) +动词原形(+其它)。
如：I don't like bread.当主语为第三⼈称单数时，要⽤doesn't构成否定句。
如：He doesn't often play.⼀般疑问句：Do( Does ) +主语+动词原形+其它。
如：- Do you often play football?- Yes, I do. / No, I don't.当主语为第三⼈称单数时，要⽤does构成⼀般疑问句。
如：- Does she go to work by bike?- Yes, she does. / No, she doesn't.特殊疑问句：疑问词+⼀般疑问句。
如：How does your father go to work?⼩朋友们，下次见到我时，千万不要忘记我是"⼀般现在时"啊！See you next time!揭开“第三⼈称单数”的秘密善问⼤王： Good afternoon , Mr Huang. 学完⼀般现在时之后，我对哪些主语属于第三⼈称单数还不太清楚，请您给我讲⼀讲好吗？Mr Huang: 你可真是⼀个勤学好问的好学⽣！哪些主语是第三⼈称单数这可是个⼩秘⼀、第三⼈称代词 he, she, it 作主语时。
四五年级语法知识点总结1.名词单数变复数的变化规则及专项练习2.人称代词专项练习3.形容词和副词的比较级和最高级4.一般疑问句专项练习5.There be 句型练习6.特殊疑问句专项练习7.一般现在时定义、形式及练习8.一般过去时定义、形式及练习9.现在进行时定义、形式及练习10.一般将来时定义、形式及练习语法点一：名词单数变复数的变化规则名词单数变复数专项练习法则规律例子1 一般情况下在名词后面直接+s ，s 在浊辅音后面读[z]，在清辅音后面读[s]。
book —books dog —dogs 读[s] day —days tree — trees 读[z]2 以s 、z 、ch 、sh 等结尾的单词+es,读[iz]。
class-classes watch-watches box- boxesbrush-brushes 3以o 结尾的词有生命的+es ，读[z]。
口诀：英雄吃土豆、番茄和芒果；无生命的+s ，读[s]； 以两个元音字母结尾（其一必定是o ）时+es ，读[z]。
有生命：tomato-tomatoes 西红柿；potato-potatoes 土豆； mango-mangoes 芒果；hero-heroes 英雄无生命：photo-photos 相片；piano-pianos 钢琴； radio-radios 以两个元音结尾的： zoo-zoos4以f 、fe 结尾的名词，变f 、fe 为v+es ，读[iz]。
口诀：妻子持刀去宰狼，小偷吓得发了慌，躲在架后保己命，半片树叶遮目光wife-wives(妻子); knife-knives （小刀）; wolf-wolves （狼）; thief-thieves （小偷）; shelf-shelves (架子)；life-lives （生命、生活）;leaf-leaves （树叶）;5以y 结尾的，如果y 前面是辅音，把y 改为i ，再加-es ，读[z]；如果y 前面是元音，直接加s ，读[s]。
