Module 9 Population Unit 3 Language in use 课件39张PPT

英语（外研版） 八年级上册 English Module 9 Population Unit 3 Language in use Language practice Beijing is a huge city. It takes an hour to get there by bus. That’s almost one fifth of the world’s population. That makes over 131.4 million births a year. 1 课堂导入 冠词和数词基数词的用法 1.冠词 (1)不用冠词的情况 ①在专有名词或不可数名词前。 China is my home town. ②名词前有指示代词、物主代词或不定代词 作定语。 There are many apples in the basket. ③在一日三餐、球类运动、棋类运动、 学科及季节、日期的名词前。 play volleyball 打排球 learn English 学英语 have dinner 吃晚饭 ④在某些固定短语中。 at night 在晚上 (2)不定冠词 a/an ① a 用在读音以辅音音素开头的名词前； an 用在读音以元音音素开头的名词前。 a boy 一个男孩 an apple 一个苹果 ②用于可数名词单数前，表示“一个”相当于one。 This is an apple. ③用在可数的、单数形式的普通名词前，表示价 格、速度、时间、频率等度量上的“每一”。 I watch TV once a week. ④首次提到某人或某物，不定冠词起介绍作用。 A girl wants to ask for some help. ⑤用在序数词前表示“又一、再一”的意思。 I want to have a second one. ⑥用于固定短语中。 have a good time (3)定冠词 the ①用于谈话双方都清楚的名词前，表示特指。 I had to go to the shop at that time. ②用于再次被提到的名词前。 I have a cat. The cat is black. ③特指某人或某物。 The boy with short hair is my cousin. ④用于形容词最高级或序数词前。 the first boy ⑤用于世界上独一无二的事物或乐器名词前。 the sun play the piano [注意] 在某些词组中，名词前用冠词和不用冠词的意义有所不同。 in class 在课堂上 in the class 在班里 in hospital 生病住院 in the hospital 在医院里 in front of 在……（外部）的前面 in the front of 在……（内部）的前面 2.数词基数词 (1)基数词从 1-12，写法都不同。 one, eleven (2) 13-19 都是以后缀 -teen 结尾。 thirteen (3)十位数和个位数之间添加连字符。 21 twenty-one (4)百位数与十位数之间要用 and 。 101 one hundred and one (5)千位数以上的数，从数字的右端向左端数起，每三位数加 一个“,”。 从右开始，第一个 “,”前的数字后添加 thousand ，第二个“,” 前的数字后添加 million ，第三个 “,”前的数字后添加 billion。然后一节一节分别表示，两个 逗号之间最大的数为百位数形式。 2 , 427 , 155 , 256 读作: two billon, four hundred and twenty-seven million, one hundred and fifty-five thousand, two hundred and fifty-six 1 China a) 4,437,000 2 the USA b) 22,956,000 3 Australia c) 314,791,000 4 New Zealand d) 1,370,537,000 Work in pairs. Match the countries with their populations. 2 课堂活动 01 Read your answers to Activity 1 to the whole class. China has a population of… Now listen and check. Learning to learn When you see a table or a chart, look carefully at the labels and graphs to make sure that you understand what they are showing. Look at the chart below. What is it comparing? What can you conclude? 02 Read the chart and answer the questions. 加尔各答 孟买 纽约 墨西哥城 东京 Population (million) 13.1 18.7 16.4 26.6 17.8 23.6 18 24.6 34.4 38.7 03 1 Which city had the largest population in 2000? 2 Which city’s population will increase the most from 2000 to 2025? Tokyo had the largest po ... ...