可数名词复数形式以及动词第三人称

第一篇：可数名词复数形式以及动词第三人称

名词形式：

不可数名词都默认为单数，所以总是用is或者was；最好不要根据some、any、a lot of等词去作判断，以免受误导。

可数名词如何变“复数形式”：

a．一般情况下，直接加-s，如：book-books, bag-bags, cat-cats, bed-beds ；读音：清辅音后读[s]，浊辅音和 元音后读[z]。b．以s.x.sh.ch结尾，加-es，如：bus-buses, box-boxes, brush-brushes, watch-watches ；读音：[iz]。

c．以“辅音字母+y”结尾，变y为i, 再加-es，如：family-families, strawberry-strawberries ；读音：[z]。

d．以“f或fe”结尾，变f或fe为v, 再加-es，如：knife-knives，thief-thieves；读音：[z]。e．以“o”结尾的词，分两种情况

1）有生命的+es 读音：[z] 如：mango-mangoes（芒果）

两人两菜一火山：hero（英雄）Negro（黑人）tomtato(西红柿)potato（土豆）volcano（火山）2)无生命的+s

读音：[z] 如：photo-photos

radio-radios f.不规则名词复数： man-men, woman-women, policeman-policemen, policewoman-policewomen，snowman-snowmen, mouse-mice, child-children, foot-feet, tooth-teeth, 单复数形式相同：fish, deer,sheep-,people, Chinese, Japanese。

2、不可数名词没有复数。如果要计算不可数名词所表达的数量，就得在数词和不可数名词之间加上“量词+of”。例如：a glass of water, a piece of paper, a bottle of juice 判断步骤：

↗如是am、is或was→原形 读句子→读该单词→认识该单词→理解意思→看be动词

↘如是are或were→加s或es 练习题

一、请写出下列词的复数形式。

city _____ _zoo ______country

_____ tooth ____

mouse ___________boy____________ broom ___________car ____

tree

______horse

______ bus______________ fox

_____ branch

____ baby

_____ family

_____ dish

_____

radio

_____ photo

_____ piano

_____ knife

_____ leaf

_____

life

_____ thief

_____ _man

_____ woman

_____ child

___

foot___________ tomato _____________ watch___________ diary____________ day____________ book____________ dress____________ sheep___________ tea_____________ box___________

strawberry_________

peach__________ sandwich__________ paper_________ water____________ milk___________ rice__________

people ___________ ox___________deer____________

二、单项选择(1’*10=10’)（）1.The __ in our yard are very beautiful.A.cloth

B.water

C.flowers（）2.Tom is one of the Chinese _____ in our school.A.boy

B.boys

C.boies（）3.A cat has four ____ , doesn't it?

A.foots

B.feet

C.feets（）4.There are three ____ and five _____ in the room.A.American, Japanese B Americans, Japanese C.American, Japanese（）5.Can you see nine ____ in the picture?

A.fish

B.book

C.horse（）6.The _____ has two______.A.boy;watch

B.boy;watches

C.boys;watch（）7.The _____ are flying back to their country.A.Germany

B.Germanys

C.Germans（）8.The girl brushes her _____ every day before she goes to bed.A.tooths

B.teeth

C.teeths（）9.There is no ______ in the plate.A.apples

B.oranges

C.rice

D.eggs（）10.My uncle has three _______.A.child

B.childs

C.children

D.childrens

（）2.How many ______ do you see in the picture?

A.tomatos

B.tomatoes C.tomato

D.the tomato（）3.They are______.A.woman teachers

B.women teachers

C.women teacher

D.woman teacher（）4.Would you like _______ ,please?

A.two glass of water

B.two glasses of water

C.two glass of waters

D.two glasses of waters（）5.Most of ______ live in _______.A.Germans, German

B.German, Germen

C.Germen, Germany

D.Germans, Germany（）7.______ like ______ by air.A.Greens, travelling

B.The Green, traveling

C.The Greens, travel

D.The Greens, traveling 四.填入所给名词的正确形式(2’*10=20’)1.I have two____________(knife)2.There are many ___________ here.(box)3.There are many ___________ on the road.(bus)4.A few ___________ are drawing on the wall.(boy)5.The ______________ are playing football now.(child)6.Please take two _______________ for me.(photo)7.I like the red ________________.(tomato)8.Would you please clean your _____________ now?(tooth)9.Do you want some _________?(milk)10.There are ten __________

_________in our school.(woman teacher)动词第三人称单数变化规则：

一、人称代词he, she, it是第三人称单数。如：

He likes watching TV.他喜欢看电视。

She has lunch at twelve.她十二点吃午餐。

It looks like a cat.它看起来像只猫。

二、单个人名、地名或称呼作主语；是第三人称单数。如：

①Han Mei looks like her mother.韩梅看起来像她的母亲。

②Beijing is in China.北京在中国。

③Uncle Wang often makes cakes.王叔叔经常做蛋糕。

三、单数可数名词或“this / that / the+单数可数名词”作主语时，是第三人称单数。如：

①A horse is a useful animal.马是有用的动物。

②This book is yours.这本书是你的。

③That car is red.那辆小汽车是红色的。

④The cat is Lucy's.这只猫是露茜的。

四、不定代词someone, somebody, nobody, everything, something等及指示代词this, that作主语时，是第三人称单数。如：

①Everyone is here.大家到齐了。

②There is something wrong with the watch.这块手表有毛病。

③This is a pen.这是一支钢笔。

④That is an eraser.那是一块橡皮擦。

五、不可数名词作主语时为第三人称单数。如：

①The milk is in the glass.牛奶在玻璃杯里。

②The bread is very small.那面包很小。

六、当数字或字母作主语时，看作第三人称单数。如：

①“6” is a lucky number.“6”是个吉利数字。

②“I” is a letter.“I”是个字母。

动词第三人称单数+s或+es的规则： A、一般直接加“s”，如：play – plays, visit – visits, speak – speaks ； B、以“s”，“x”，“sh”，“ch”结尾时，加“es”，如：catch – catches, watch – watches ； C、以“辅音字母+y”结尾时，变“y”为“i”再加“es”，如：carry – carries, study – studies。4.have的第三人称单数为has。关于do和does的使用方法：

1）第三人称单数用了 does 后面就不用动词的s形式了,而用动词原形.2）变为疑问句,要在句首加“do” does;变为否定句, 要在动词前面加“do not ,does not”, 可以简写为 “don't”.背：I do, you do, we do, they do, Jack and Tom do.He does, she does, it does, lily does.1.[Do/Does]______ he watch TV at night? Yes he does.2.[Do/Does]______ you go to school everyday? No, I don’t.3.[Do/Does]______ Jack and Peter like apples? 4.[Do/Does]______ Tina go swimming on Sunday?

5.[Do/Does]______they play football? Yes, they ___[do/does].6.[Do/Does]______ we have a good teacher? Yes, we ____[do/does].7.[Do/Does]_____ they jump rope ? No, they ___[do not/does not].8.[Do/Does]_____your dog walk in the zoo?

9.[Do/Does]____ I have a big nose? No, you _____[do not/does not].10.[Do/Does]____ your cats eat fish? Yes, they _____.[do/does].11.[Do/Does]_____ their mothers go shopping? No, they ____[do not/does not].12.I ___[do not/ does not] speak Japanese.[Do/Does] _____you speak Japanese?

一、选择

1.Ben_____a new bicycle.A.have

B.has

C.are

D.were 2.Kitty_____her bicycle to the park.A.ride

B.riding

C.rides

D.ridden 3.A man _____in front of his car.A.walk

B.walks

C.walking

D.work 4.Sam’s bicycle ______a bell.A.have

B.has

C.having

D.is having 5.The girl on the bike _______ “Excuse me”

A.say

B.saying

C.says

D.sayes 6.How _____it feel? A.does

B.do

C.are

D.is 7.Mog______not like his cushion.A.do

B.is

C.does

D.are 8.He ______Min’s cushion.A.likes

B.like

C.does

D.are 9.He_______with his nose.A.smelling

B.smells

C.smell

D.is smell 10.Lucy_______with her hands.A.touch

B.touching

C.touches

D.touchs 11.Superboy ________the boys A.see

B.sees

C.seeing

D.ses 12.Supergirl and Superboy ______them.A.saves

B.save

C.saving

D.is saving 13.Jack_______their cow.A.sells

B.sell

C.selling

D.are selling 14.Jack______up the beanstalk.A.gets

B.get

C.climb

D.climbs 15.The giant ______boys.A.eating

B.don’t eat

C.eats

D.eat

16.The goose_______ golden eggs.A.lay

B.lays

C.layed

D.layes 17.The woman _______the beanstalk.A.cut

B.cutting

C.are cut

D.cuts 18.Her mother ______the beanstalk.A.take

B.is take

C.takes

D.taking 19.Jack and her mother _____cosmic books.A.does

B.are

C.is

D.have 20.He____the beans in the ground.A.buy

B.puts

C.put

D.buys

二．填空：

1.She __________________(do)homework by herself.2.Jack __________________(go)home by bike.3.The giant_______________(climb)up the beanstalk.4.Her mum _______________(run)to the goose.5.He_____________________(do not)like apple.6, Sam____________________(put)it under his arm.7.The boy_________________(chase)it.8.Kitty_____________________(watch)TV everyday.9.He______________________(feed)them at 8:00 in the morning.10.When __________________(do)he get up? 11.Grandma Wang____________(live)in Pudong.答案：

名词单复数

cities zoos countries teeth mice boys brooms cars trees horses buses foxes branches babies families dishes radios photos pianos knives

leaves lives thieves men women children feet these watches diaries days books dresses sheep teas boxes

strawberries peaches sandwiches papers water milk rice people CDs oxen deer

二、单项选择(1’*10=10’)1.C 2.B 3.B 4.B 5.A 6.B 7.C 8.B 9.C 10.C

三、选择填空(1’*10=10’)2.B 3.B 4.B 5.D 7.D

四.填入所给名词的正确形式(2’*10=20’)1.knives 2.boxes 3.buses 4.boys 5.children 6.photos 7.tomatoes 8.teeth 9.milk 10.women teachers

单数第三人称

单选20题参考答案： 1-5BCBBC

6-10ACABC

11-15BBADC

16-20BDCDB

填空答案：1.does 2.goes

3.climbs 4.runs

5.doesn't

6.puts

7.chases

8.watches

9.feeds

10.does

11.lives

第二篇：可数名词的复数形式

可数名词的复数形式

复数名词主语时系动词用are,单数名词主语时系动词用is.名词可分为可数名词和不可数名词两大类。可数名词，有单复数之分，而不可数名词没有复数形式，可数名词变复数时有规则和不规则变化两种

名词复数的规则变化：

1.通常在单数名词后加：s构成复数 day---days 天 dog---dogs 狗 house---houses 房屋 car---cars 车

2.以字母o，S，x，ch，sh结尾的单数名词，在词尾加：es构成复数 tomato---tomatoes 西红柿

kiss---kisses 吻 class—classes 班级

box---boxes 箱，盒

church---churches 教堂 watch---watches 手表

brush---brushes 刷子 brush---brushes 刷子

3.辅音字母+y结尾的普通句词，先把y去掉再加ies构成复数 baby---babies 婴儿 Country---countries 国家 fly---flies 苍蝇 lady---ladies 女士 city---cities 城市

以y结尾但y前为元音的名词在构成复数时，在词尾直接加:s 构成复数 boy---boys 男孩 day---days 天 guy---guys 家伙

4.以字母o结尾的外来词或缩写词的名词，在词尾加：s构成复数 dynamo---dynamos 发电机 kilo---kilos 公斤 kimono---kimonos 和服 photo---photos 照片 piano—pianos 钢琴

soprano---sopranos 女高音歌手

5.有12个以f或fe结尾的名词在构成复数时，去掉f或fe加ves calf小牛 half半 knife刀 leaf叶子 life生命

loaf（面包的）条／只 self自身 sheaf捆 shelf架子 thief贼 wife妻子 wolf狼

名词复数的不规则变化： 有些名词用改变元音的方法来构成其复数形式 foot---feet 英尺，脚 tooth---teeth 牙齿 goose---geese 鹅 louse---lice 虱子 mouse---mice 老鼠 man---men 男人 woman---women 女人

名词的复习学案

名词可分为可数名词和不可数名词两大类。大多数名词是可数名词，有单复数之分，而不可数名词没有复数形式，可数名词变复数时有规则和不规则变化两种： 1 名词复数的规则变化 构成方法(1)一般情况加 map（）bag（）(2)以s, sh, ch, x等结尾加

bus--

watch

(3)以辅音字母+y结尾

baby---元音字母+y 结尾的名词变复数时，直接加 monkey---

boy 4）以o 结尾的名词，变复数时：

A :.加s，如： photo---

piano--

radio--

zoo--

； B 加es，：potato-

tomato--巧学妙计：加es的口诀：黑人（Negro）英雄(hero)爱吃西红柿(tomato)和土豆(potato)加s可串成口诀：我听广播（radio），也看到了电视录像video，说动物园(zoo)里的袋鼠(kangaroo)弹着钢琴(piano)招揽游客来照相(photo)5）以f或fe 结尾的名词变复数时： A.加s，roof---roofs B.去f,fe 加ves，如：half---halves knife---knives leaf---leaves wolf---wolves wife---wives

life---lives thief---thieves； C.上述A和B两种方法均可，scarf 符合B情况的名词可串成这样一句口诀：

树叶（）半数（）自己（）黄，妻子（）拿刀（）去杀狼（），架（）后小偷（）逃命（）忙 2.名词复数的不规则变化 1）改a为e man _______ woman_______ policeman_______ 注意：由一个词加 man 或 woman构成的合成词，其复数形式也是-men 和-women，如an Englishman，two Englishmen。但German不是合成词，故复数形式为Germans； 2)oo改为ee foot______ tooth_______ goose_______ 3)词尾加ren

child_______ 4)其他 mouse_______（老鼠）

2）单复同形1）三种动物 羊_______ 鹿_________ 鱼_______ 2)三个国家的人 日本人________中国人_______瑞士人________ 3.不可数名词 特征 1).没有复数形式 2）.不能用数目来计算数量

3）.不可数名词作主语时谓语动词用单数形式

不可数名词的量的表示方法：数词+计量词+of+不可数名词 如：一张纸：a piece of paper → 十张纸

ten pieces of paper 一杯咖啡 a cup of coffee →两杯咖啡 two cups of coffee 一条消息________________→三条消息_______________________ 一瓶牛奶________________→五瓶牛奶_______________________ 一袋大米________________→二十袋大米______________________ 4.名词作定语修饰名词：

名词作定语一般用单数，但也有以下例外。1)用复数作定语。例如： sports meeting 运动会 a sports cap 2）man, woman, gentleman等作定语时，其单复数以所修饰的名词的单复数而定。例如： A man worker----10 _________ _______三个女老师______ _______ _______ 3）数词+名词（即复合形容词）作定语时，这个名词一般保留单数形式。例如： two-dozen eggs 两打鸡蛋

a ten-mile walk 十英里路 two-hundred trees 两百棵树 a five-year plan.一个五年计划 经典回放：（）1.—Would you like something to drink, Tina?----Yes，I’d like some________.A.sandwiches

B.hot dogs

C.water

D.bread（）2.Mr.Smith always has ________to tell us.A.some good pieces of news

B.some pieces of good news C.some good piece of newes

D.some piece of good news

练习

写出下列名词复数 leaf______

box_______

knife_______

fox______ bus______ bench_____ brush_____

kiss______

church______

dish_____

ruler______

glass_____

boy______ zoo______

man______

roof_______

sheep_______ knife______ lady______ key______ story______ watch______ city______ family______ apple_______ eraser______ speech______ thief______ mouse______ fish_____ goose____ Chinese _______ deer _______ foot______ child_______ tooth_______ _ hero_______ boss_____ monkey______ city ______ radio ________ dog ______ 用所给的单词的复数的正确形式填空： 1>There are so many________(wolf)in the forest.2>These _______(tomato)are red.3>______(hero)are great.4>My brother looks after two ______(baby)5>There are some ______(deer)eating the grass 6> Michael likes the ______(mouse).7>Chinese ______(people)like to eat noodles.8>I have a lot of ______(toy)in my bedroom 9>.I help my mother wash ______(dish)in the kitchen.10> Linda has three _______(tooth).

第三篇：可数名词的复数形式

可数名词的复数形式、不可数名词练习题

一、用英语表示下列专有名词

中国

长城

台湾

星期五

北京

莉莉 __________

___________ __________ ___________

__________ ___________

二、写出下列名词的复数形式

egg____________ watch__________

story_____________ knife___________ radio___________ tomato____________ desk___________ glass____________ child___________

sheep_____________ Chinese______________ man____________ city___________ zoo___________ country____________ tooth_________

mouse___________ boy____________ broom ___________car__________

tree__________ horse__________ bus______________ fox___________ branch_________ baby__________ family__________ country___________

radio_________

photo__________ piano__________ knife__________ leaf__________

life__________

woman__________foot_____________this_____________diary____________day____________ book____________dress___________sheep___________box___________strawberry_________peach__________sandwich__________people___________ fish____________ ox___________

三、在正确的名词复数形式后画√，错误的画×。

1.girl: girls______ girles _____

2.trousers: trousers ______trouser_____ 3.box:boxs ______boxes_____

4.story: stories______ storys______ 5.piano:pianos _____ pianoes _____

6.potato:potatoes_____potatos_____

四、选择填空。

（）1.The farmer raised(饲养)ten ______.A.sheeps

B.deers

C.horse

D.sheep（）2.The old man has _____ on his nose.A.a glass

B.a glasses

C.a pair of glasses

D.a pair of glass（）3.There are some ____ in these _____.A.knifes;pencil-boxes

B.knives;pencils-box C.knives;pencil-boxes

D.knives;pencils-boxes（）4.She wants to make _____ with us.A.a friend

B.friends

C.the friend

D.one friend（）5.The __ in our garden are very beautiful.A.cloth

B.water

C.flowers

（）6.Tom is one of the Chinese _____ in our school.A.boy

B.boys

C.boies（）7.A cat has four ____ , doesn't it?

A.foots

B.feet

C.feets

（）8.There are three ____ and five _____ in the room.A.American, Japanese

B Americans, Japanese

C.American, Japanese（）9.Can you see nine ____ in the picture?

A.deer

B.book

C.horse（）10.The _____ has two______.A.boy;watch

B.boy;watches

C.boys;watch

（）11.The girl brushes her _____ every day before she goes to bed.A.tooths

B.teeth

C.teeths

（）12.I can see many _____ in the street.A.peoples

B.people

C.people’s

（）13.How many ______ do you see in the picture?

A.tomatos

B.tomatoes

C.tomato

D.the tomato（）14.They are______.A.woman teachers

B.women teachers

C.women teacher

D.woman teacher（）15.Would you like _______ ,please?

A.two glass of water

B.two glasses of water

C.two glass of waters

D.two glasses of waters（）16.There are some ______ in these _______.A.knifes

pencil-boxes

B.knives

pencils-box

C.knives

pencil-box

D.knives

pencils-boxes（）17.There is no ______ in the plate.A.apples

B.oranges

C.rice

D.eggs

（）18.My uncle has three _______.A.child

B.childs

C.children

D.childrens

五、填入所给名词的正确形式

1.I have two____________(knife)

2.There are many ___________ here.(box)

3.There are many ___________ on the road.(bus)4.A few ___________ are drawing on the wall.(boy)5.The ______________ are playing football now.(child)6.Please take two _______________ for me.(photo)7.I like the red ________________.(tomato)

8.Would you please clean your _____________ now?(tooth)

9.Do you want some _________?(milk)10.There are ten __________ school.(woman teacher)

_________in our

第四篇：动词的第三人称单数形式

动词的第三人称单数形式（简称单三式）

1．一般在词尾加“-s”help-helps make-makes ride-rides know-knows 2．在s z x sh ch 结尾的词在词尾加“-es”push-pushes pass-passes watch-watches wash-washes 3．以“元音字母＋y”结尾时,加“-s”；以“辅音字母＋y”结尾时,变 y为i,再加“-es”play-plays stay-stays study-studies carry-carries 4．以“辅音字母＋o”结尾的词,多数在词尾加“-es”go-goes do-does 5．be动词的单三式为is 6．have动词的单三式为has 补充

:不定式的省略:Wil you join us?你要同我们一道去吗? I should love to(join you).我愿意.The boy wanted to ride his bicycle in the street but his mother told him not to.那个男孩想要到街道上骑自行车,但是他的妈妈叫他不要去.Alice,why didn't you come yesterday?爱丽斯,你昨天为什么没来? I was going to,but I had an unexpected visitor.我本来是要来的,但是家里突然来了一个客人.

第五篇：动词的第三人称单数形式

一 小学英语动词的单三形式讲解

大家都知道，在一般现在时中，当主语是第三人称单数时，谓语动词要用第三人称单数形式，即常在动词原形后加-s或-es。但有些同学们对于哪些主语是第三人称单数还不十分清楚，现归纳总结如下：

一、人称代词he, she, it是第三人称单数。如： He likes watching TV.他喜欢看电视。She has lunch at twelve.她十二点吃午餐。It looks like a cat.它看起来像只猫。

二、单个人名、地名或称呼作主语；是第三人称单数。如： ① Han Mei looks like her mother.韩梅看起来像她的母亲。② Beijing is in China.北京在中国。

③ Uncle Wang often makes cakes.王叔叔经常做蛋糕。

三、单数可数名词或“this / that / the+单数可数名词”作主语时，是第三人称单数。如：

① A horse is a useful animal.马是有用的动物。② This book is yours.这本书是你的。③ That car is red.那辆小汽车是红色的。④ The cat is Lucy's.这只猫是露茜的。

四、不定代词someone, somebody, nobody, everything, something等及指示代词this, that作主语时，是第三人称单数。如：

① Everyone is here.大家到齐了。

② There is something wrong with the watch.这块手表有毛病。③ This is a pen.这是一支钢笔。

④ That is an eraser.那是一块橡皮擦。

五、不可数名词作主语时为第三人称单数。如： ① The milk is in the glass.牛奶在玻璃杯里。② The bread is very small.那面包很小。

六、当数字或字母作主语时，看作第三人称单数。如： ①“6” is a lucky number.“6”是个吉利数字。②“I” is a letter.“I”是个字母。第三人称单数形式的构成

1.一般直接在词尾加 s，如：work-works live-lives make-makes 2.以s,x,ch ,sh等结尾的单词加 es , 如： miss-misses fix-fixes finish-finishes teach-teaches 3.以辅音字母加y结尾的单词，变y为i加 es , 如： fly-flies 4.以辅音字母加o结尾的单词，加 es 如: go-goes do-does

be动词包括：am，is，are。第三人称单数用 is；过去式为 was；复数用are，过去式为were.除上述规律外，还应注意下面三点：

1.动词 have，遇到主语是第三人称单数时，要用 has； 动词 be 的第三人称单数形式是is。

2.含有动词第三人称单数形式的句子变否定句时，要用 doesn't + 动词原形，如：

He goes to school at six in the morning.(变否定句)→ He doesn't go to school at six in the morning.3.对含有动词第三人称单数形式的句子提问时，要用助动词 does，如：

She goes home at five every day.(对划线部分提问)→ When / What time does she go home every day? 一般现在时中的第三人称单数形式

在一般现在时中，当主语是第三人称单数时，谓语动词要用第三人称单数形式，即常在动词原形后加-s或-es。

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动词单三的练习三 写出下列动词的第三人称单数。go do play jump swim run put sing dance come get have fly read write look drink eat walk 一.根据括号里单词的适当形式填空 1.She _____(be)a writer.2.It _____(look)like a monkey.3.We_____(go)to the park.4.He _____(go)to school.5.Amy_____(like)eating fruits.6.Hebei_____(be)next to Shandong.7.Our teacher _____(be)talking with John.8.Whose book _____(be)this ? 9.Dogs _____(be)our friends.第2 / 6页

10.That blackboard _____(be)clean.11.The desk _____(be)Tom’s.12.Somebody _____(do)her homework.13.Everybody _____(is)ok!14.Nobody _____(be)in the park.15.There _____（be）someone in the classroom.16.That cat _____(be)mine.17.A little water _____(be)in the cup.18.Cheese _____（taste）well.19.The letter “O” _____(look)like zero.20.“4” _____(be)a bad number in China.二.把下列句子改成第三人称单数句的肯定句、否定句、一般疑问句，并做回答。

1.I like playing the pinao in the music room.(Tom)2.You need a pencil-box for new term.(Sam’s sister)

3.I do my homework at half past four in the afternoon.（she）4.I have breakfast at twenty-five past seven in the morning.(her father)5.I watch TV at quarter past six with my parents.(Tom’s sister)二 小学英语所有句型转换的方法

基本助动词只有三个：be, do, have, 他们没有词汇意义，只有语法作用，第3 / 6页

如协助构成进行体，完成体，被动态，否定句，疑问句等。

一、肯定句改否定句的方法——一步法

1、在be动词后加not。如：is not，are not，am not，was not，were not；

2、在can，should，will等后加not。如：cannot，should not，will not；

3、上述都没有的，在动词前加助动词否定形式don’t/doesn’t/didn’t。

4、some 改成any。

二、肯定句改一般疑问句的方法——三步法

1、把be动词放在句首，剩下的照抄，（some 改成any，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，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.I am listening to music._______________________________________ 2.Mike is a student._______________________________________ 3.Sarah can clean the classroom.________________________________________ 4.They are in the zoo.________________________________________

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5.There are some flowers in the vase.________________________________________ 6.This is my sister._________________________________________ 7.We are sweeping the floor.__________________________________________

3、上述都没有的，在句首请助动词Do/Does/Did帮忙，剩下的照抄，（some 改成any，my改成your等）句点改成问号。

例如：陈述句: I like the ducks.He likes the dogs.一般疑问句：Do you like the ducks? Does he like the dogs? 把下列句子改为一般疑问句。

1.We need some masks._________________________________ 2.They like making the puppet._________________________________ 3.Su Hai and Su Yang live in a new house._________________________________________________ 4.I put a book on my head._________________________________________________ 5.They sing “In the classroom”together._________________________________________________ 6.We play basketball on Sundays.动词的第三人称单数形式

动词的第三人称单数形式规律如下：

1、多数在动词后加s play—plays like—likes read-reads sing-sings dance-dances cook-cooks

look-looks

2、以s，x，sh，ch，o结尾的动词加es go—goes wash—washes watch-watches catch-catches do-does

3、以辅音字母加y结尾，把y改i再加es fly—flies study—studies

try-tries 特别注意：以y 结尾的动词变化，看清楚y前面的那个字母是元音还是辅音？ 辅音+y的，要改y，例如carry carries;元音+y 的，不改y,例如 play plays.4、动词have 的第三人称单数形式是has，这是一个

不规则的变化，我们经常会遇到。

5、含有动词第三人称单数的句子，在变否定句时要

在动词前加doesn’t；变疑问句时要在主语前加助动词does。这时句子的谓语动词改为原形。如： Alice usually plays in the park.Alice doesn’t usually plays in the park.