(共44张PPT)
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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 7
Let’s chant
Lead-in
How many pencils are there in the picture
Eleven.
十一
How many apples are there on the tree
Twelve.
十二
How many days are there in February
Twenty-eight.
二十八
How many footballs are there on the playground
Twenty-nine.
二十九
Just read and write
How many students are there in your class
Twenty-nine.
21
22
23
24
25
26
27
28
29
Can you write them
十一
十二
Let’s dictate
21
22
23
24
25
twenty-one
twenty-two
twenty-three
twenty-four
twenty-five
26
27
28
29
twenty-six
twenty-seven
twenty-eight
twenty-nine
11
12
eleven
twelve
表示数目或数量的词被称为基数词。
1. 1到10: one, two, three, four, five, six, seven, eight,
nine, ten。
2. 11到19: eleven, twelve, thirteen, fourteen, fifteen,
sixteen, seventeen, eighteen, nineteen。这
里除 eleven, twelve, thirteen, fifteen, eighteen
为特殊形式外，fourteen, sixteen, seventeen,
nineteen都是在其个位数形式后加-teen构成。
基数词
拓展
3. 从20到99：整数几十中除twenty, thirty, forty, fifty,
eighty为特殊形式外，sixty, seventy, ninety都是在其
个位数形式后加-ty构成。表示几十几时，在十位数
和个位数之间加连字符“-”， 例如：21 twenty-one。
4. 百位数：基数词加“hundred”表示几百， 表示“几
百几十几”时， 百位数与十位数之间加上and。例如：
320 three hundred and twenty 。
Practice
1. There are twenty-eight English books and
twenty-two Chinese books on the desk.
How many books are there on the desk
Twenty-eight + twenty-two= fifty
28 + 22 = 50
2. There are fifty-three small desks and nine big
desks in the classroom.
How many desks are there in the classroom
Fifty-three + nine = sixty-two
53 + 9 = 62
How many students are there in your class
Look & predict
Who are they Where are the children
What probably are they doing
Watch & answer
1. What does Mr Gao teach
He teaches PE.
3. How many students are
there in the class
Twenty-nine.
2. What is Mr Gao saying
“How many students are
there in your class ”
Good afternoon, boys and girls! This is Mr Gao, our new PE teacher.
Just talk
Task 1: Read in groups.
Good afternoon, Mr Gao!
How many students are there in your class
Twenty-nine.
Let’s count from 1 to 29!
One, two, three…
…twenty-eight, twenty-nine.
Good afternoon, boys and girls! ____________, our new ____________.
Task 2: Listen and fill in the blanks.
This is Mr Gao
PE teacher
Good afternoon, Mr Gao!
_________ students _________ in your class
___________.
How many
are there
Twenty-nine
_____ count from 1 to 29!
One, two, three…
…___________, twenty-nine.
Let’s
twenty-eight
分为两组，每组学生各持有一张数字卡片，组内学生进行接龙问答，每名学生既是提问者，也是回答者。
Task 3: Chain game
How many students are there in your class
Twenty-six.
1. How many students are there in your class
你们班有多少名学生？
回答用“There is/are+基数词.”或者直接用基数词。
“How many+可数名词复数+are there+其他 ”
用于询问数量。
Language points
—你家里有多少人？
—有四个人。/四个人。
—___________ people are there in your family
—There are four./Four.
【例句】
How many
2. Let’s count from 1 to 29. 让我们从一数到二十九。
“Let’s do +动词原形+其他.”，“让我们……”
这是一个祈使句，用于向别人提出建议或征求别人
的意见。
回答常用：“OK!/Great!/Sounds Great.”
—我们去上学吧。
—好的！
—______ go to school.
—OK!
【例句】
Let’s
Let’s play
用How many+名词复数+are there+地点... 询问朋友物品的数量。
29
26
25
23
28
24
27
Find your neighbours.
26
28
27
Twenty-six.
Twenty-seven.
Twenty-eight.
We are neighbours.
23
25
24
Twenty-three.
Twenty-four.
Twenty-five.
We are neighbours.
21
23
22
Twenty-one.
Twenty-two.
Twenty-three.
For example
We are neighbours.
27
29
28
Twenty-seven.
Twenty-eight.
Twenty-nine.
We are neighbours.
Summary
重点单词：
重点句型：
—How many students are there in your class
—Twenty-nine.
twenty-one
twenty-two
twenty-three
twenty-four
twenty-five
twenty-six
twenty-seven
twenty-eight
twenty-nine
eleven
twelve
Exercise
一、选择题。
1. ______ students are there in your class
—Twenty-nine.
A. How many B. How much
2. What time is it ________.
A. It’s twelve o’clock. B. It’s eleven o’clock.
3. How many ______ are there in your pencil-box
A. pen B. rulers C. eraser
4. How many books are there on the desk
—______.
A. It’s a desk. B. It’s two. C. There are two.
1. Read the dialogues and review language points.
2. 熟记本课时的数字和熟练运用how many句型造句。
Homework
