Lesson 19
Listen and say
May I borrow your glue, please?
我可以借一下你的胶水吗？
Certainly. Here you are.
当然可以。给你。
Thank you.
谢谢你。
You are welcome.
不客气。
May I borrow your markers, please?
我可以借你的记号笔吗？
Here you are. I collect markers. I have fifty markers.
给你。我收集记号笔。我有五十支记号笔。
Thank you. 谢谢你。
Listen,look, and learn
---May I borrow your markers, please?
---我可以借你的记号笔吗？
---Here you are.
---给你。
markers 记号笔
eraser 橡皮
ruler 尺子
books 书
pencil 铅笔
Listen and find
May I borrow your...,please?
我可以借你的...吗？
Lesson 20
Listen and say
You have so many erasers.
你有这么多的橡皮啊。
Yes. I have sixty.
是的。我有六十块橡皮。
What do you collect, Guoguo?
果果，你收集什么呢？
I collect rulers.I have forty.
我收集尺子。我有四十把尺子。
You have so many toy cars.
你有这么多玩具汽车啊。
Yes. I collect them. I have twenty.
是的，我收集玩具汽车。 我有二十辆玩具汽车。
I have ten.
我有十辆玩具汽车。
Let's put them together. Twenty plus ten is thirty.
让我们把玩具汽车放在一起吧。二十辆加十辆就是三十辆。
Listen,look, and learn
---What do you collect ?
---你收集什么呢？
---I collect rulers. I have forty.
---我收集尺子。我有四十把尺子。
rulers 尺子
crayons 蜡笔
stickers 贴纸
cards 卡片
thirty 30
forty 40
fifty 50
sixty 60
Listen and find
How many ...do you have ?
你有多少...？
I have...
我有...
Lesson 21
Listen and say
Look at the numbers on the blackboard: 50, 60, ____, ____, 90.
看黑板上的这些数字：50, 60, ____, ____, 90.
Who can guess the missing numbers?
谁能猜到空缺处的数字？
It's easy. Fifty plus ten is sixty. So the missing numbers are seventy and eighty.
很简单。五十加十是六十。所以空缺的数字是七十和八十。
One hundred minus ten is ninety.
一百减去十是九十。
Ninety minus ten is eighty.
九十减去十是八十。
So the missing numbers are eighty and seventy.
所以空缺处的数字是八十和七十。
Well done. 做得好。
Listen,look, and learn
Fifty plus ten is sixty. One hundred minus ten is ninety.
五十加十是六十。一百减去十是九十。
Forty plus twenty is sixty. Seventy plus ten is eighty.
四十加二十是六十。七十加十是八十。
Read and write
A plus B is 100. A minus B is 20.
A加上B 是100. A减去B是20.
A is ______, B is ______.
A是 ______, B 是 ______.
A plus B is 90. A minus B is 50.
A加上B 是90. A减去B是50.
A is ______, B is ______.
A是 ______, B 是 ______.
A plus B is 70. A minus B is 10.
A加上B 是70. A减去B是10.
A is ______, B is ______.
A是 ______, B 是 ______.
Lesson 22
Now I know the sound
oi：oil 油 coin 硬币 join 参加 boil 煮沸 noisy 喧闹的
oy：boy 男孩 toy 玩具 joy 高兴
That noisy boy has many toys.
那个吵闹的男孩有许多玩具。
The toys give him great joy.
玩具给他很大的乐趣。
Now I can write
I have twenty crayons. 我有二十支蜡笔。
I have thirty erasers. 我有三十块橡皮。
I have forty rulers. 我有四十把尺子。
I have fifty markers. 我有五十支记号笔。
I have sixty pencils. 我有六十支铅笔。
I have seventy books. 我有七十本书。
Let's chant
One, two, three, four,
一、二、三、四
Come in please and shut the door.
请进，关上门。
Five, six, seven, eight,
五、六、七、八
It's time for school and you're very late!
该上学了，你迟到了
Nine, ten, nine,ten,
九、十、九、十
Don't be late for school again.
不要再迟到了。