第二单元

Unit two

Visiting Beijing 游览北京

Understanding of the number within ten thousand

万以内数的认识

Lesson one

1. One hundred and ninety-eight students from our school came to Beijing.

我们学校有一百九十八名同学来到北京。

2. How big is one hundred and ninety-eight?

一百九十八有多大呢？

3. Dial and count.

拨一拨，数一数。

4. One hundred and ninety-eight have one hundred, nine tens, and eight ones.

一百九十八里面有1个百、9个十、8个一。

5. On the counter, dial one hundred ninety-eight to two hundred and one.

在计数器上，从一百九十八拨到二百零一。

6. How great is a thousand?

一千有多大呢？

7. You can count them with tools.

可以用学具来数一数。

8. What's 10 hundreds?

10个一百是多少？

9. From the right, what's the fourth digit?

从右边数，第四位是什么？

10. Do you know an abacus? How do you represent 587 on an abacus?

你认识算盘吗？怎样在算盘上表示587呢？

11. A top bead represents 5. A lower bead represents a 1.

一个上珠表示5。一个下珠表示1。

12. One by one, from 587 to 600.

一个一个地拨，从587拨到600。

13. So let's think about, how do we represent 805 on an abacus?

想一想，怎样在算盘上表示805？

14. Let's practice together!

我们一起来练习一下吧！

Lesson two

1. Look at the picture, read the information, what questions can you ask?

观图，读信息，你能提出什么问题？

2. How great is three thousand six hundred ninety and three?

三千六百九十三有多大呢？

3. Dial it, say it.

拨一拨，说一说。

4. 9693, do two "nines" mean the same thing?

9693，两个“9”表示的意思一样吗？

5. How big is ten thousand?

一万有多大呢？

6. Wiggle and count.

可以摆一摆、数一数。

7. What's 10 thousands?

10个一千是多少？

8. Can you write one thousand five hundred, six thousand fifty and three thousand five?

你会写一千五百、六千零五十和三千零五吗？

9. Can you read 2573, 8007, 8070 and 8700?

你会读2573、8007、8070和8700吗？

10. Think about it. How do you read and write numbers within ten thousand?

想一想，怎样读、写万以内的数？

Lesson three

1. There are 597 restaurants on the first floor and 508 on the second floor.

一楼餐厅597座，二楼餐厅508座。

2. How many people can the dining room seat on the first floor? On the second floor?

一楼餐厅大约能坐多少人呢？二楼呢？

3. The ground floor can seat about 600 people. The second floor can seat about 500 people.

一楼大约能坐600人。二楼大约能坐500人。

4. Are they right? Let's take a look at it on the graph.

他们的说法对吗？我们在图上看一看。

5. 597 is close to 600,600 is an approximation of 597.

597接近600,600就是597的近似数。

6. 508 is close to 500, and 500 is an approximation of 508.

508接近500,500就是508的近似数。

7. In life, sometimes you don't need to use the exact number, it's more convenient to use the approximate number.

生活中，有时不需要用准确数，用近似数会更方便一些。

8. Can you give another example of approximate numbers?

你还能举出近似数的例子吗？

9. Guangming Primary School has 1,210 students and Experimental Primary School has 958.

光明小学有1210人，实验小学有958人。

10. Which school has the largest population?

哪所学校的人数多？

11. What other questions can you ask?

你还能提出什么问题？

12. There are 895 story books and 806 science and technology books.

故事书895册，科技书806册。

13. Story books or science books, which category is more numerous?

故事书和科技书，哪类册数多？

14. How do you compare different numbers to different sizes?

不同数位比大小，怎么比？

15. How can we compare the same number of places?

相同数位比大小，怎么比？

16. Let's practice!

我们来练习一下吧！

Lesson four

1. It is about 500 meters from the entrance to the north third floor and 300 meters from the north third floor to the north fourth floor.

从入口到北三楼长约500米，从北三楼到北四楼长约300米。

2. How long is it from the entrance to the north fourth floor?

从入口到北四楼有多长？

3. Xiao Li has climbed 110 steps and Xiao Yu has climbed 90.

小力已经登了110级台阶，小宇已经登了90级。

4. How many more steps does Xiao Li climb than Xiao Yu?

小力比小宇多登多少级台阶？

5. Eleven tens minus nine tens is two tens

11个十减9个十等于2个十

6. Can you do 1400+600 by mouth?

你会口算1400+600吗？

Lesson five

1. How many words is this diary about?

这篇日记大约有多少个字？

2. One line is about 10 words, 10 lines in total

一行大约有10个字，共有10行

3. I circled part of it. It was about 20 words. How many words was this diary about?

我圈了一部分，大约有20个字，这篇日记大约有多少个字？

4. How many words are there in this class newspaper?

这张班报大约有多少个字？

5. The number of words in this class newspaper is equivalent to the number of words in 4 diaries. What is the number of words in a diary?

这张班报的字数相当于4篇日记的字数，一篇日记的字数是多少？

6. Let's practice!

我们来练习一下吧！