Unit4Reading课件牛津上海版英语八年级上册.pptx

24Amazing thingsNumbersReading Before you readA0 Think and say We are going to read about a special kind of language that everyone can speak An International Language /'l??ɡw??/What does ‘language’ mean?What kind of language do you know? Before you readA1 Think about what these numbers stand for(代表).2000923.14151.41440411913?To calculate the area of a circle /?k?lkjule?t/What do we use it to do ?/??m??d??nsi/ Before you readA2 Read the title and the introduction,answer the questions. How many languages do you know? Everyone knows at least two—his or her own language and the international language of numbers.What is the title?What will the writer probably talk about in the passage?Numbers: Everyone's language While you readB0 Scan(扫) the subheadings and pictures on P57,then answer What is the passage mainly about?The_________and_________of numbers.How many parts are there in this passage? What are they?history (how to speak the) language4Ancient numbers, Zero, Calculating machines and Brain against computer. While you readB1 Read “Ancient numbers”, tell the meanings of the picture In ancient times, people wrote numbers in many different ways, as these pictures of the number 6 show. However, they nearly all counted in the same way—in tens.Ancient numbersWhy mention these four?ancient civilizationsHow did most ancient people count? While you readB1 Read “Ancient numbers” and answer the questionsIn ancient times, people wrote numbers in many different ways, as these pictures of the number 6 show. However, they nearly all counted in the same way—in tens.Ancient numbersWhy mention these four?ancient civilizationsWhat is the picture trying to tell us?How did most ancient people count? While you readB1 Read “Ancient numbers” and answer the questionsCan you think of any exceptions? Is there any civilization that doesn't count in tens?Why did most ancient people count in tens?What does this paragraph tell us?Ancient people write the numbers in different ways but