(共34张PPT)
PEP人教版 四下
Unit 6 How many
B Let's learn
sixteen
十六
【例句】 There are sixteen pencils in my pencil box.
我的铅笔盒里有十六只铅笔。
Presentation
seventeen
十七
【例句】 There are seventeen
fish in the river.
河里有十七条鱼。
eighteen
十八
【例句】 Ten plus eight is eihteen.
十加八等于十八。
【单词巧记】 eigh + teen= eighteen
nineteen
十九
【例句】 There are nineteen books on the desk.
书桌上有十九本书。
【单词巧记】 nine + teen= nineteen
twenty
二十
【例句】 We have twenty desks
in the classroom.
教室里有二十张课桌。
10 and 8 makes 18.十加八等于十八。
【详解】
此句中and意为“加”, make意为“等”,可以用be动词is来替换。
重点句型
【拓展】
plus也意为“加”，times意为“乘”。
Six and eleven makes seventeen.
Seven and eleven makes eighteen.
Try
7+11=18
找规律
How many cars do you have？
I have
twenty
How many books do you have？
I have
fifteen
How many caps do you have？
I have
eighteen
How many pencils do you have？
I have
sixteen
3 + 10 =
1 + 11 =
7 + 9 =
2 + 9 =
( )+ ( ) =
11
12
14
13
Two and nine
makes eleven .
What is two and nine
It’s eleven.
1.---_______ -----Two.
A. How many fingers do you have
B. How many hands do you have
2.How many _____do you have
A. pen B. pens.
3.班主任让你和一位同学一起帮忙点书的数量，你会跟同学说：
_______
A. How many books B. Let’s count.
B
B
B
Choose the right answers选择正确答案
看数字，比大小。
一
1
six+seven
sixteen
2
fifteen-two
thirteen
3
twelve+six
seventeen
4
eighteen
twenty
>
<
<
=
Homework:
1.Read the words and sentences on page 62.
2.Make word cards and play with your friends.
谢谢
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