3 、百、千、万 百 hundred 100 one hundred 200 two hundred 以此类推 ···· 千 thousand one thousand two thousand········· 英语里没有 “ 万 ” 这一单位，万也用 thousand 表示。如： ten thousand 一万 twenty thousand 两万 ·····

4 、十万、百万 十万的说法是： a (one) hundred thousand two hundred thousand million 百万 a (one) million 1,000,000 two million 2,000,000 ········ 以此类推 ······ 8,000,000 eight million

练一练 ,657,421 three hundred and forty-five one thousand (and) one eighteen million, six hundred and fifty-seven thousand, four hundred and twenty-one

1.The project lasted 5 years and cost 2 billion dollars. 2. The Chinese have been making paper for two thousand years. 3. One thousand pounds is a lot of money. 表示确定数量时 用基数词 + hundred ， thousand ， million ， billion

1.The project lasted 5 years and cost 2 billion dollars. 2. The Chinese have been making paper for two thousand years. 3. One thousand pounds is a lot of money. 表示确定数量时 用基数词 + hundred ， thousand ， million ， billion

多位基数词读法 three hundred and eighty-nine four hundred and fifty-seven eight hundred and ninety six hundred and eight 1 ） 101~999 的三位数由 “ 百位数＋ and+ 两位数组 成 ” 。如： 325—three hundred and twenty-five 1 ） 101~999 的三位数由 “ 百位数＋ and+ 两位数组 成 ” 。 如： 325—three hundred and twenty-five 102 one hundred and two 635 six hundred and thirty-five

2) 三位数以上的数，从个位往前数，每三位数 加一个逗号，从后往前数的第一个逗号代表 thousand, 第二个逗号代表 million, 第三个逗号 是 billion ，注意这几个词不能用复数形式，后 也不能加 and 。例如： 2,648 two thousand, six hundred and forty-eight 16,250,064 sixteen million, two hundred and fifty thousand, sixty-four

确切数目与不确切数目的表达： hundred, thousand, million, billion 等前面有 基数词，表示确切数目时，用单数，后直接 接复数名词；如： three hundred books one hundred people five thousand students seven million starts

表示不确切数目时，这类词后加 -s 且与 of 连 用。如： hundreds of people thousands of students millions of birds billions of lions 注意：这类短语中，名词前如有定冠词、指 示代词或形容词性物主代词时，可加 of, 但 表示的是范围。如： two hundred of the workers 工人中的二百（人）

square n. 平方 70 square kilometers in size 面积 120 平方千米 meter n. 米 1.62 meters tall /high 1.62 米高 ancient adj. 古代的 wide adj. 宽的；宽阔的 3 meters long / wide/ deep 3 米长 / 宽 / 深

deep adj. 深的 desert n. 沙漠 population n. 人口 Asia n. 亚洲

tour v. n. 旅行 tourist n. 旅行者 wall n. 墙 amazing adj. 令人大为惊奇的

Do you know these places of interest? 游览胜地 Qomolangma Qomolangma runs along the border 边界 between China and Nepal. It is covered with snow all the year round 终年被雪覆盖. It’s meters high, the highest in the world. It’s 26 kilometers long.

The Nile is the longest river in the world. It’s more than 6600 kilometers long. It runs through 9 countries, it’s one of the largest river flows 河流 through the international states in the world and runs into the Mediterranean Sea( 地中海 ) in the end 最终. The Nile

The Caspian Sea The Caspian Sea is the biggest lake in the world. It lies in the border 边界 between Asia and Europe.

The Sahara is the biggest desert in the world. It is located in 坐落于 the northern Africa, climate conditions 气候条件 are very bad, is one of the earth‘s most not suitable 适合 for biological survival 生物生存. The Sahara

The Yangtze River is the third longest river in the world. It’s kilometers long. The Yangtze River Basin 流域, east-west width 宽度 of 3219 kilometers, about 966 kilometers wide north- south, passing through 11 provinces 省. It runs into the East Sea in Shanghai finally. The Yangtze River

Which is the highest mountain in the world? Which is the longest river in Asia?... …

1a Match the facts you know. Qomolangmaabout 9,600,000 square kilometers in size The Sahara1,025 meters deep The Caspian Sea6,671 kilometers long The Nile8, meters high

Practice in pairs like this: A: Which is the … in the …? B: …

A: How high is Qomolangma? B: It’s 8,844 meters high. The biggest desert in the world is about 8,000,000 square kilometers in size. How big is the Sahara? It’s about 8,000,000 square kilometers 平方米 in size 面积.

Yesterday, we learned some important geographical 地理的 facts 事实. I hope you all still remember them. I’m going to 准备 test 检测 you now by asking a few questions 通过问一些问题. Are you good at geography 地理 ?

1.Which is the longest river in the world? 2.What’s the highest mountain in the world? 3.Which is the biggest desert in the world? 4. Which is the deepest salt lake in the world? The Nile is the longest river in the world. The Amazon is the second longest in the world. Qomolangma is higher than any other mountain= the highest mountain in the world. The Sahara is the biggest desert in the world. The Caspian Sea is the deepest of all the salt lakes.

1.How big is China? It’s about _________ square kilometers in size. 2. How high is Qomolangma ? It’s about ___________ meters high. 3. How long is the Nile ? It’s __________ kilometers long. 4. How deep is the Caspian Sea? It’s ____________meters deep. 5. How big is the Sahara? It’s about ________ square kilometers in size. 9,600,000 8, ,671 1,025 9,600,000

1b Listen and complete the sentences. 1. Qomolangma is ______ than any other mountain in the world. 2. The Sahara is ____________ desert in the world. 3. The Caspian Sea is ____________ of all the salt lakes. 4. The Nile is _________ river in the world. higher the biggest the deepest the longest

2a Listen and number the facts(1- 4) in the order you hear them. 6,300 5,000 5, ___ The Yangtze River is about ____ kilometers long and the Yellow River is ___ kilometers long. ___ China has the biggest population in the world. It’s a lot bigger than the population of the US. ___ China is over ___ years old. It has a much longer history than the US. The US is not even ___ years old. ___ China is almost as big as the US, but it is the biggest country in Asia

2b Listen again and fill in the blanks in 2a with the numbers in the box. 6,300 5,000 5, The Yangtze River is about _______ kilometers long and the Yellow River is ______ kilometers long. China has the biggest population in the world. It’s a lot bigger than the population of the US. China is over ______ years old. It has a much longer history than the US. The US is not even ___ years old. China is almost as big as the US, but it is the biggest country in Asia. 6,300 5,464 5,

Can you tell me a bit more about China? 1. China is ________________ ( 世界上最古老的国家之一）. 2. It is _________________________ （ 5000 多年） 3.It is _________________( 比 … 悠久的多） than America. 4.China has ____________________________ ( 最多 人口 ). It’s _________________________________ ( 人口比美国多得多 ） 5.China is about ____________________ ( 和美国面积一样大 ). It’s _________________________ ( 亚洲最大的国家） 6.The Yangtze River is ___________________( 亚洲最长的河流） It’s about 6, 300 _______________ ( 千米长） The Yellow River is 5,464 kilometers long. Both rivers ________________ ( 对中国很重要）. one of the oldest countries in the world over 5000 years old much older the biggest population a lot bigger than the population of the United States the same size as the US the biggest country in Asia the longest river in Asia kilometers long are very important to China

Who can tell me what the United States is ? 1.The United States is one of the youngest countries in the world. ( 世界上最年轻的国家之一） it’s not even 300 years old. 2. It’s a lot smaller than the population of China. It has smaller population than China. 3.It is about the same size as China.

2c Make conversations using the information in 2a. A: Did you know that China is one of the oldest countries in the world? B: Yes, I did. it’s much older than my country.

A: Did you know that Yangtze River is the longest river in China? B: Yes, I did. It’s 6,300 meters long. B: Wow! That’s long!

2d Read the conversation and answer the questions: 1. Which is the biggest man-made objects 人 造物体 in the world ？ 2. Which is the most famous part 最有名的部分 of the Ming Great Wall? The Great Wall. Badaling part of the wall.

feel free to do sth. 只管按意愿去做 on today’s Great Wall Tour 在今天的长城游览中 the most popular question 最普遍的问题 the parts from the Ming Dynasty 来自明朝的部分 the ancient emperors 古代的皇帝 the main reason 主要理由 as far as I know 据我所知 to protect their part of the country 为保护他们国家的地方 the man-made objects 人造物体

A: To memorize the important phrases and sentences. B: To make some dialogues about asking the size of objects.