内容正文:
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小学英语
沪教版
四年级上册
Unit 3 How do we use numbers?
Contents
01 Sounds & Letters
02 Words & Phrases
03 Sentences
Tips & Practice
04
01 Sounds & Letters
开音节的定义
在一个音节中,如果元音字母e位于词尾,且前面只有一个辅音字母, 这样的音节叫作“开音节”。
m
辅音
例如:
e在词尾,前面只有一个辅音m, 所以是开音节,发/ i:/ 音。
字母e 的发音规则 (开音节)
字母e 在开音节中发音 /i:/
例词一
例词二
be
/b i:/
e
元音
he
/h i:/
开放结构
me
字母e 的发音规则
(闭音节)
元音e被辅音包围,
是闭音节,发/e/ 音。
字母e 在闭音节中发
闭音节
let
How many apples do we have?
Do you have ten apples?
Ten plus two equals twelve.
Sentence Intonation
Yes/No question
Rising tone
Declarative sentence
Falling tone
Special question
Falling tone
plus 加;加号
minus 减;减号
equal 等于
answer 答案;回答
use 使用
help 帮助
count(按顺序)数数
say 说
必记单词 ( 动词类 )
必 记 单 词 ( 名 词 类 )
supermarket
超市
how many 多 少 (用于问数量)
How many apples?
1 3 5 7 9 2 4 6 8 10
常考短语(数量与时间)
every day 每天
tell the time 报时
all the time 一直
even numbers 偶数
odd numbers奇数
take away
how many
together
count
☆
02 Words & Phrases
常考短语(场景类)
at the party
在聚会上
How many
How
many?
How many apples?
books?
03 Sentences
Ten plus two equals twelve.
十加二等于十二。
---
A plus B equals C.
A minus B equals C.
Ten minus two equals eight.
(十减二等于八。)
odd
This is an odd number.
这是一个奇数。
even
This is an even number.
这是一个偶数。
How many apples do we have?
——我们有多少个苹果?
—— 我们有十个苹果。
询问数量句型
We have ten apples.
They don't have ten apples.
04 Tips & Practice
Three plus two is five.
问句:
What is A
plus/minus B?
考点01: 英文加减法表达(规则)
Five plus three equals eight.
plus 表示加,
minus 表示减, equals 表示等于
数字用基数词:
equals 可替换为 is:
one,two,
three. … .
equals
plus
4
提 分 练 :写出算式的英文表达 (1-5题)
① 7+2= 9
② 12-5=7
③ 8+6=14
④ 15-9=6
⑤ 3+11=14
Seven plus two equals nine.
Twelve minus five equals seven.
Eight plus six equals fourteen.
Fifteen minus nine equals six.
Three plus eleven equals fourteen.
提分练:选择正确答案(1-5题)
( ) 1.Six plus three equals ______.
A. eight B. nine C. ten
( ) 2.Twelve minus seven equals ______.
A. five B. four C. six
( )3. Eight plus seven equals ______.
A. fourteen B. fifteen C. sixteen
( ) 4.What is nine minus four? —______.
A. Three B. Four C. Five
( ) 5.What is six plus eight? —______.
A. Twelve B. Thirteen C. Fourteen
B
A
B
C
C
提分练:改为英文问句
1.8+5=13→What is eight plus five?
2.16-7=9
What is sixteen minus seven?
结构
How many 复数名词 do/does 主语
答语
主语 have/has 数字 (+ 名词)
注意
● How many +可数名词复数
● 主语三单用does ,答 语 用has
● 区别How much (不可数/价格)
考点02 “How many”询问数量(规则)
How many apples?
“How many”用于询问可数名词的数量, “How much” 用于询问不可数名词的数量或价格。
How much water?
提分练:单项选择(1-5题)
( ) 1.—______ books do you have? —I have six books.
A. How much B. How many C. How old
( ) 2. —How many pencils ______ she have? —She ______ three.
A. do;have B. does;has C. does;have
( ) 3. —______ apples do we need? —We need ten apples.
A. How many B. How much C. How
( ) 4.—How many students ______ in the classroom? —There ______ twenty.
A. is;is B. are;are C. are;is
( ) 5.—How many oranges ______ your mother buy? —She ______ five.
A. do;buys B. does;buys C. does;buy
B
B
A
B
B
1. How many (book) do you have?
2. How many_ (pen) _______ (do) she have?
3. We ____________(have) ten apples.
(have)three rulers.
(not have) any bananas.
提分练:用所给词适当形式填空(1-5题)
4. She
5. They
books
pens
does
have
has
don’t have
提分练:按要求完成句子(1-3题)
I have five pencils.(对划线部分提问)
pencils _____ you have?
She has three rulers. (改为一般疑问句)
she ________ three rulers?
They have six books.(改为否定句)
six books.
1
2
3
They
How many
do
Does
have
don’t have
·I have a book.
· She has a cat.
· The tree has leaves.
否定句
don't/doesn't+ have (原形)
·I don't have a pen.
· He doesn't have a dog.
疑 问 句
Do/Does+ 主语+have?
· Do you have a ruler?
· Does she have a bag?
考点03 “ have / has”表示“有”(规则)
主语三单
(he/she/it/ )
→ has
其他主语
(I/you/we/they)
→ have
用法补充
“have/has” 不仅用于人,还可以用于动物、植物等
· The tree has leaves.
have
has
主语类型 肯定句
提分练:用have或has 填空(1-10题)
1.I ______ three pens.
2. My sister ______ a new schoolbag.
3.They ______ ten books.
4.The tree ______ green leaves.
5.We ______ a big house.
6. She ______ two brothers.
7.The sunflower ______ a lot of seeds.
8.You ______ a nice room.
9.My grandparents ______ a farm.
10. It ______ small black seeds.
have
have
have
have
have
has
has
has
has
has
They_____ ______ two dogs.
He a new
pencil case.
The plant _____ ______ green leaves.
We ______ a big garden.
提分练
改为否定句(1-5题)
She has five oranges.
They have two dogs.
The plant has green leaves.
We have a big garden.
He has a new pencil case.
She five
oranges.
doesn’t have
don’t have
doesn’t have
doesn’t have
don’t have
考 点04 奇数与偶数(规则)
This is an even number.
This is an odd number.
句型:This is an odd/even number.
问:Is it an odd number or an even number?
odd numbers: 个位1,3,5,7,9(不能被2整除)
·even numbers: 个位0,2,4,6,8(能被2整除)
even numbers(偶数)
odd numbers(奇数)
注意:odd/ even以元音开头,用an
个位是1,3,5,7,9(不能被2整除)
个位是0,2,4,6,8(能被2整除)
规则要点
提分练:判断奇偶并写句子(1-8题)
3 →
8 →
11 →
14 →
7 →
20 →
13 →
6 →
This is an odd number.
This is an odd number.
This is an odd number.
This is an odd number.
This is an even number.
This is an even number.
This is an even number.
This is an even number.
.
二、单项选择
( )1.This is_____odd number.
A. a B. an C./ ( )2. 2,4,6,8 are______numbers.
A.odd B. even C. old
( )3.1,3,5,7 are_______numbers.
A.odd B. even C. good
三、根据实际情况回答问题
① Is 9 an odd number or an even number?
② Is 12 an odd number or an even number?
提分练:单项选择与问答(考点04)
B
B
A
It’s an odd number.
It’s an even number.
Thank You!
Let’s use numbers in English!
☆
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