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人教精通版（三年级起点）英语
精选课件
四年级下册
精通·四年级下册
Unit 2 There are forty students in our class.
Lesson 12
Let’s sing
twenty-one
twenty-two
twenty-three
twenty-four
twenty-five
twenty-six
二十一
二十二
twenty-seven
twenty-eight
twenty-nine
eleven
twelve
thirty
二十七
二十八
Review
二十三
二十四
二十五
二十六
二十九
十一
十二
三十
forty
fifty
sixty
seventy
eighty
ninety
one hundred
四十
五十
六十
七十
八十
一百
九十
男孩
书包
铅笔
boy
女孩
学生
书
钢笔
学校
girl
student
book
bag
pen
pencil
school
体育老师
PE teacher
英语老师
希望工程
需要帮助的孩子
在我们的学校
从……到……
多少
一百
English teacher
project hope
children in need
in our school
from... to...
how many
one hundred
数字单词很容易，1至12特殊记，
13数到19去，后加-teen莫忘记，
20以上整十数，结尾都把-ty来加。
1. 问答数量的句型：
—How many+可数名词复数+are there+其他
—(There is/are+)基数词.
你们班有多少名学生？
—How many students are there in your class
有40名学生。
—There are forty students.
2. Let’s引导的祈使句，表示让我们做某事：
Let’s do sth.
让我们从一数到二十九。
Let’s count from 1 to 29.
3. 表示……怎么样的句型：How about…
你们学校怎么样？
How about your school
4. 问答对方拥有物品的具体数量的句型：
—How many + 名词的复数形式+ do you have
—I/We+ have + a/an+ 可数名词单数.
—(I/We+ have +)基数词(+可数名词复数形式).
—How many bags do you have 你们有多少书包？
—We have ninety bags. 我们有90个书包。
Counting game
How many students are there
in your class
six + six = _______
twelve
twelve + six = __________
eighteen
How many ______ are there
in the picture
ten
eight
seventeen + twenty-two = __________
thirty-nine
Do a survey
How many books do you have
Look & guess
Who are they
What are they doing
Watch & answer
How many books does the rabbit have
How many books does the duck have
How many books does the rooster have
How many books do they have in total
Let’s help children in need.
We need books.
Read & act
How many books do you have
I have twenty-five books.
How many books do you have
I have thirty-five books.
How many books do you have
I have forty books.
We have one hundred books now.
No, we have ninety-nine books.
Why
There’s one book here!
Fill in the blanks
How many books does the rabbit have
The rabbit has __________ books.
twenty-five
How many books does the duck have
The duck has _________ books.
thirty-five
How many books does the rooster have
The rooster has ________ books.
forty
How many books do they have in total
They have __________ books. Why
ninety-nine
Because Micky is reading a book.
Imitation show
分角色朗读对话，注意模仿语音语调。
试着表演出来。
1. Let’s help children in need.
我们帮助需要帮助的孩子们吧！
Language points
例：我们帮帮那只小狗吧。
Let’s help the little dog.
help sb. / sth. 帮助某人/某事
句中need为实义动词，意为“需要”。
其用法如下：
(1) 当主语为物时，后接名词或动词-ing。
例句: 这些花需要浇水。
The flowers need watering.
2. We need books. 我们需要书。
(2) 当主语是人时，后可接名词和动词不定式。
即：need sth./ need to do sth.
例句: He needs some help.
You need to wear more clothes.
注意：need后跟不定式且用于否定句中时，表示
“不必”，指没义务或没必要做某事。
例句: 你不必马上做那件事情。
You don’t need to do it at once.
2
Let’s check
5×10
students
20+7
boys
20+3
girls
5×8
teachers
4×20
books
10×10
pencils
3
4
1
5
6
Listen and number.
1. —How many teachers are there in your school
—There are 40.
2. —How many students are there in your class
—There are 50.
3. —How many boys are there in your class
—There are 27 boys in my class.
4. —How many girls are there in your class
—There are 23.
5. —How many books do you have
—I have 80 books.
6. —How many pencils do you have
—We have one hundred pencils.
How many students are there in your class
There are fifty.
5×10
students
Role-play
How many boys are there in your class
There are twenty-seven.
20+7
boys
How many girls are there in your class
There are twenty-three.
20+3
girls
Language Focus
How many students are there in your class
Twenty-nine.
How many students are there in your class
There are forty.
How many teachers are there in your school
There are fifty.
How many bags do you have
We have seventy bags.
How many pens do you have
We have ninety pens.
twenty-one~twenty-nine thirty
forty fifty sixty seventy
eighty ninety one hundred
eleven twelve boy girl student school bag book pen pencil
SKILLS: Listen Speak Read Write
Let’s write
My name is Yuanyuan. I’m in Class One, Grade Four. There are forty ________ in our class.
There are eighteen ____ and twenty-two ____ in our class.
students
girls
boys
I have many school things. I have a ____
and there are some ______ in it.
I have three ____ and five _______ .
I want to give them away to help children in need.
bag
books
pens
pencils
Do you want to help children in need
小动物们已经捐赠了一些书籍，但是困难地区的儿童们还需要一些其它的学习用品，比如：钢笔、铅笔、尺子和书包等。你们想要帮助他们吗？让我们一起来捐赠吧！
1. 寻找生活中的数字（100以内），并用英语读出来。
2. 综合本单元学习的内容，用英语调查同学们的文具
数量，并进行统计。
Homework
