(
课件网) Unit 2 Amazing numbers 主题范畴： 人与社会 主题群： 历史、社会与文化；科学与技术 子主题： 对世界、国家、人民和社会进步有突出贡献的人物；科学技术与工程，人类发明与创新 Key question What is the role of numbers in our daily lives master the rules of using cardinal numbers and ordinal numbers; give correct instructions about numbers. Learning objectives 学习目标 At the end of the class, I’ll be able to: 1. The number of students in our class is 40. 2. I’d like one grain of rice for the first square of the chessboard, … 3. It is worth three hundred. 4. The little boy was born in 11 Dec. 2018. 5. Mo Yan won the Nobel Prize for Literature in 2012. 6. Who is the woman, the second in the second line Have a look A Cardinal numbers 1. The concept of cardinal numbers 2. The formation of cardinal numbers 3. The usage of cardinal numbers Section 2 Exploring and applying rules The concept of cardinal numbers We use cardinal numbers to count things. 1. People from about 180 countries and areas live in New York. 2. The CN Tower is 1,815 feet tall. 3. Red Square in Moscow is about 91,000 square metres in size. 4. France has an area of over 26,000 square miles. 5. There are about 8,000,000 people living in London. 6. Tokyo, the capital of Japan, has over 13,000,000 people. 0～12为基本单词： zero one two three four five six seven eight nine ten eleven twelve 13～19为对应的个位数单词（或变形）后加-teen： thirteen fourteen fifteen sixteen seventeen eighteen nineteen 3 three 13 thirteen 11 eleven 15 fifteen 12 twelve 18 eighteen The formation of cardinal numbers 20～90为其对应个位数单词（或变形）后加-ty： twenty thirty forty fifty sixty seventy eighty ninety 21～99的两位数，十位与个位之间用连字符“-”： 26 twenty-six 99 ninety-nine When we say thirteen, we stress the second syllable. When we say thirty, we stress the first syllable. 20 twenty 70 seventy 30 thirty 82 eighty-two 50 fifty 98 ninety-eight 100 one hundred 200 two hundred 375 three hundred and seventy-five 101～999的三位数，百位数和十位数（若无十位数则和个位数）之间用and连接，百后用单数形式： 103 a/one hundred and three 225 two hundred and twenty-five 999 nine hundred and ninety-nine 多位数： 注意每三个数为一个单位，按照百、十、个向下读。 6 , 500 , 431 , 729 billion million thousand seven hundred and twenty-nine six billion, five hundred million, four hundred and thirty-one thousand, 在英语中，对于万以上的数字，我们该如何表达呢？这就要记住英语数字读法特点。以下面一个数字为例： Let’s sum up the rules! When we read out numbers, we do not add -s to the words hundred, _____, _____, and _____. We put _____ between hundred and ten. thousand million billion and 表示数量：one book (一本书)；three apples (三个苹果)。 表示时刻、年份、年代：nine o’clock (九点钟)；in two thousand and twenty (在2020年)；in the 1960s (在20世纪60年代)。 表示年龄：He is ten (years old). (他十岁了)；in one’s thirties (在某人三十几岁时)。 表示事物编号：Room 105(105房间)；L ... ...
