沪教版三年级上册英语-知识点(否定句、一般疑问句、肯定句、缩写、复数、划线部分提问).docx

牛津上海版三年级上册英语 知识点
第1讲 改否定句
【知识点】
1、 句子中有am/is/are/can时，直接在后面加not，其他不变，抄下来；
2、 句子中没有am/is/are/can时，找到动词，在动词前面加don’t/doesn’t，其他不变，抄下来。
【练习题】
1、 I am Mike.
否定句：____________________________________________________
2、 This is a pen.
否定句：____________________________________________________
3、 You are a boy.
否定句：____________________________________________________
4、 They can swim.
否定句：____________________________________________________
5、 I like apples.
否定句：____________________________________________________
6、 I am Danny.
否定句：____________________________________________________

7、 This is my ruler.
否定句：____________________________________________________
8、 Those are his robots.
否定句：____________________________________________________
9、 You can go to have a look.
否定句：____________________________________________________
10、 I know his name.
否定句：____________________
11、 I am a student.
否定句：____________________________________________________
12、 It is an apple.
否定句：____________________________________________________
13、 They are my books.
否定句：____________________________________________________
14、 I can see a boat.
否定句
15、 Stand up.
否定句：____________________________________________________
16、 I am in Grade 3.
否定句：____________________________________________________
17、 She is Yang Ling.
否定句：____________________________________________________
18、 We are teachers.
否定句：____________________________________________________
19、 I can draw a toy car.
否定句：____________________________________________________
20、 Jack speaks English very well.
否定句：____________________________________________________

18
第2讲 改一般疑问句
【知识点】
1、 句子中有am/is/are/can时放句首，其他不变，抄下来。
2、 句子中没有am/is/are/can时，用Do/Does放句首，其他不变，抄下来。
3、 I变you，I am变Are you。
4、 标点变问号。
肯定回答：Yes，人称 + am/is/are/can/do。
否定回答：No，人称 + am/is/are/can/do + not。
【练习题】
1、 I am Mike.
一般疑问句：______________________________________________
肯定回答：__________________________________________________

否定回答：__________________________________________________
2、 This is a pen.
一般疑问句：______________________________________________
肯定回答：__________________________________________________
否定回答：__________________________________________________
3、 You are a boy.
一般疑问句：______________________________
肯定回答：__________________________________________________
否定回答：__________________________________________________
4、 They can swim.
一般疑问句：______________________________________________
肯定回答：__________________________________________________
否定回答：_________________________________
5、 I like apples.
一般疑问句：______________________________________________
肯定回答：__________________________________________________
否定回答：__________________________________________________
6、 I am Danny.
一般疑问句：______________________________________________
肯定回答：___________________
否定回答：__________________________________________________
7、 This is my ruler.
一般疑问句：______________________________________________
肯定回答：__________________________________________________
否定回答：__________________________________________________
8、 Those are his robots.
一般疑问句：______________________________________________
肯定回答：__________________________________________________
否定回答：__________________________________________________
9、 You can go to have a look.
一般疑问句：______________________________________________
肯定回答：____________________________________
否定回答：__________________________________________________
10、 I know his name.
一般疑问句：______________________________________________
肯定回答：__________________________________________________
否定回答：__________________________________________________

第3讲 改肯定句
【知识点】
1、一般疑问句改肯定句
（1）将句首的am/is/are/can放回主语后面，其它照抄，标点改成句号。
例如：Is she tall? She is tall.
（2）句首是Do、Does的，去掉Do、Does，其它照抄，动词用原形，标点改成句号。如果主语是第三人称单数，谓语也要改为第三人称单数形式。例如：Do you like apples？肯定句：I like apples.
2、否定句改肯定句
（1）句子中有am/is/are/can时，直接把am/is/are/can后面的not去掉，其他照抄。例如：I can’t run. I can run.
（2）句子中有don’t或doesn’t时，直接去掉don’t或doesn’t，其他照抄。如果主语是第三人称单数，谓语也要改为第三人称单数形式。例如：Don’t shut. Shut.
【练习题】
1、 Is this tall boy thin?
________________________________________________________
2、 Are your ears small?
________________________________________________________
3、 Can Sarah clean the classroom?
_________________________
4、 Do you like the ducks?
________________________________________________________
5、 Is this the playground?
________________________________________________________
6、 Are you a boy?
________________________________________________________
7、 Can they swim?

8、 Does he like the dogs?
________________________________________________________
9、 I am not a boy.
________________________________________________________
10、 Sam isn’t sad.
________________________________________________________
11、 We aren’t studying English.
________________________________________________________
12、 I can’t dance
________________________________________________________
13、 Don’t open the pencil-box.
________________________________________________________
14、 He doesn’t know your name.
___________
15、 I am not Danny.
________________________________________________________
16、 The man isn’t walking in the street.
________________________________________________________
17、 They aren’t in the classroom.
_______________________________________
18、 Her mother can’t ride a bicycle.
________________________________________________________
19、 We don’t have lunch at 12:00 every day.
________________________________________________________
20、 Tom doesn’t walk to school.
_________________________________________________

第4讲 缩写形式与完整形式
【知识点】
完整形式
缩写形式
完整形式
缩写形式
完整形式
缩写形式
完整形式
缩写形式
am
’m
is
’s
are
’re
not
n’t
I am
I’m
he is
he’s
we are
we’re
is not
isn’t

she is
she’s
you are
you’re
can not
can’t

what is
what's
they are
they’re
do not
don’t

name is
name’s

does not
doesn’t
【练习题】
1、 I am Mike.
缩写形式：____________________________________
2、 This is a pen.
缩写形式：____________________________________
3、 You are a boy.
缩写形式：____________________________________
4、 They can not swim.
缩写形式：____________________________________
5、 I do not like apples.
缩写形式：____________________________________
6、 I am a student.
缩写形式：____________________________________
7、 It is an apple.
缩写形式：____________________________________
8、 They are my books.
缩写形式：____________________________________
9、 I can not see a boat.
缩写形式：___________________________

10、 Do not stand up.
缩写形式：____________________________________
11、 I’m Danny.
完整形式：____________________________________
12、 This’s my ruler.
完整形式：____________________________________
13、 Those’re his robots.
完整形式：____________________________________
14、 You can’t go to have a look.
完整形式：____________________________________
15、 I don’t know his name.
完整形式：____________________________________
16、 I’m in Grade 3.
完整形式：____________________________________
17、 She’s Yang Ling.
完整形式：____________________________________
18、 We’re teachers.
完整形式：__________________________
19、 I can’t draw a toy car.
完整形式：____________________________________
20、 Jack doesn’t speak English very well.
完整形式：____________________________________

第5讲 主格、宾格、所有格（形容词性物主代词）
【知识点】
1、人称代词主格：在句子开头作主语，表示谁怎么样了、干什么了。
例如：I am a teacher. You are a student. They are students.
2人称代词宾格：在动词或介词后作宾语，表示动作行为的对象。
例如：Give it to me. Let’s go.
3、物主代词所有格：用在名词前，表示是谁的东西。
例如：This is my book. We love our motherland. 我们热爱我们的祖国。

主格
宾格
所有格
（形容词性物主代词）
单数
I
me
my我的
you
you
your你的
she
her
her她的
he
him
his他的
it
it
its它的
复数
we
us
our我们的
you
you
your你们的
they
them
their他/她/它们的

【练习题】
1.__________（我）am a teacher.
2.My father is talking with __________（我）
3.___________（他）often plays basketball after school.
4.___________（他的）teacher is good.
5.____________（我们）buy a pair of shoes for______（他）.
6.Please pass _______（我们）the ball.
7.________（他们）are listening to the radio.
8.This is ________（我们）book.That is _________（他的）book.
9.________（他的）chair is blue.________（我们的）is yellow.
10._______（我们的）classroom is big._______（你们的）classroom is small.
11.________（他）often plays basketball after school.
12._________（他的）teacher is good.（她的）teacher is good too.
13.My book is blue._______（you）book is red.
14.Our chair is better than _________（they）chairs.
15.I will give the presents to __________（they）

第6讲 名词复数变化规则
【知识点】
名词复数变化规则：
1、 一般情况下，直接加s。
例如：car---cars、bag---bags、book---books
2、 以s/x/ch/sh结尾的单词加es。
例如：class---classes、box---boxes、watch---watches、brush---brushes
3、 以辅音字母加y结尾的单词，变y为i，再加es。
例如：baby---babies、family---families、comedy---comedies（喜剧）
4、 以元音字母加y结尾的单词，直接加s。
例如：boy---boys、day---days、key---keys
5、 以f/fe结尾的单词，变f/fe为v，再加es
例如：leaf---leaves、wolf----wolves、knife---knives
“小偷”（thief）的“妻子”（wife）用“刀子”（knife）和“树叶”（leaf）把“狼wolf）劈成了两“半”（half）
6、 以o结尾的名词，有生命的加es，无生命的加s，以oo结尾的加s。
有生命的加es。例如，potato---potatoes、tomato---potatoes、hero---heroes（英雄爱吃土豆炖西红柿）
无生命的加s。例如，photo---photos、radio---radios、piano---pianos。
以oo结尾的加s。例如，kangaroo---kangaroos（袋鼠）、zoo---zoos。
7、 不可数名词没有复数，以原形或/表示。
例如：water---/、milk---/、juice---/
8、 特殊情况
例如：am/is---are、I---we、she/he/it---they、my---our
his/her/its---their、this---these、that---those
man---men、sheep---sheep、Chinese---Chinese、foot---feet

【练习题】
名词变复数
bird

card

orange

watch

lady

family

ruler

photo

friend

class

dictionary

party

boy

girl

cat

box

candy

story

I

he

you

am

is

are

wife

tree

key

bed

hero

sheep

case

question

leaf

case

cup

pen

desk

key

box

knife

card

orange

boy

friend

parent

mother

father

sister

brother

son

daughter

cousin

pencil

child

man

第7讲 改复数句
【知识点】
对照句子，将句子中的名词和代词改成对应的复数，其他不变，按顺序抄下来即可。
例如：She is my friend. They are my friends.
I am a girl. We are girls.
【练习题】
句子单数变复数
1. This is a book.
___________________________________________
2. That is an eraser.
___________________________________________
3. It is a red apple.
___________________________________________
4. I am a boy.
___________________________________________
5. He is a teacher.
___________________________________________
6. What’s this?
_________________________________________
7. I am a tall boy.
___________________________________________
8. She is a beautiful girl.
___________________________________________
9. He is a strong man.
___________________________________________
10. This is a big mouse.
___________________________________________
11. That is a small fish.
___________________________________________
12. It has a long tooth.
___________________________________________
13 This is an old dog.
___________________________________________
14. There is a big peach on the table.
___________________________________________
15. I can sing a song.
___________________________________________
16. It is under the table.
___________________________________________
17. That is a short boy.
___________________________________________
18. I like the red skateboards.
___________________________________________
19. That monkey can climb the tree.
___________________________________________
20. This fox is big.
___________________________________________

第8讲 就划线部分提问
【知识点】
1、根据划线部分找到特殊疑问词放句首，把题目中剩下的部分变成一般疑问句，接在特殊疑问词的后面。
2、标点改为问号。
特殊疑问词:
特殊疑问词
内容
特殊疑问词
内容
What
什么
How much
价格，多少钱
What colour
什么颜色
What…do
会做什么
How
身体状况
Who
谁，问人
How old
几岁，年龄
Where
在哪儿，地点
How many
数量，几个
Whose
谁的，问主人
Which
哪一个
When
什么
What time
几点，问时间
Why
为什么，问原因

【练习题】
对划线部分提问
1. That’s a bike. ______________________________________
2. My name is Lingling. ______________________________________
3. This is a map of America. ______________________________________
4. Tow and tow is four. ______________________________________
5. He likes playing basketball. ______________________________________
6. Pandas love bamboo. ______________________________________
7. It’s six o’clock. _____________
8. The bike is black. ______________________________________
9. The pen is red. ______________________________________
10. Amy is a good girl. ______________________________________
11. Lingling likes collecting dolls. ____________________________________
12. This is Li Ping’s book. ______________________________________
13. My pen is in the box. ______________________________________
14. I live in New York. ______________________________________
15. My birthday is November 11. ______________________________________
16. I go to school by bike. ______________________________________
17. He is twelve. ______________________________________
18. The hamburger is four dollars. ___________________________________
19. The kite is twenty yuan. ______________________________________
20. Two pens are on the desk. .______
21. They are from 191 countries. ______________________________________
22. The bridge is 5 kilometers long. ____________________________________
23. I’m in Class 1. ______________________________________

第9讲 be动词、can、have、has的用法
【知识点】
1、be动词：am、is、are
口诀：我用am，你用are，is连着他、她、它。单数用is，复数用are。
2、can：能、会、可以
can+动词原形。
3、have、has：有
口诀：我有，你有，用have；他、她、它有用has。
例如：I have/you have/she has/he has/it has…
【练习题】
用am,is,are 填空
I ____ a girl. My name ____ Mary. I ____ 12 years old. Here ____ my family photo. Look! These ____ my parents and those _ my grandparents. This boy ____ my brother. He ____ 15 years old now. That ____ my cat, Mimi. It ____ very lovely.
1. I ______ Kitty.______
2. She ______ a student.
3. My sisters ______ tall.
4. Jane and Tom ______ my friends.
5. We ______ students.
6. They ______ in the zoo.
7. Yang Ling ten years old.
8. Sandy is my good friend. He _ ___ tall and fat.
9. Look at the picture. It ______ beautiful.
10. This ______ my dress.
用have 和has 填空
1. I ______ a cat.
2. He ______ a dog.
3. She ______ long hair.
4. We ______ a big house.
5. They ______ a happy family.
6. It ______ a short tail。
7. You ______ a good teacher.
8. Jane ______ two big eyes.
9. Tom ______ a red pen.
10. My mother ______ a beautiful nose.
11. I ______ a nice puppet.
12. He ______ a good friend.
13. They ______ some masks.
14. We ______ some flowers.
15. She ______ a duck.