[课件]外研版八年级上册 module 9 population unit 3 language in use 课件(共27张ppt)内容预览-尊龙凯时人生就博

() unit 3 language in use module 9 population revise the new words revision noise, prepare, report, billion, huge, increase, notes, cause, problem, grow, birth, flat, rubbish, quiet, local, mention, pollution, solve, public, service, pupil, reduce, create work in pairs. match the countries with their populations in 2020. 1. china a) 5,084,000 2. the us b) 25,690,000 3. australia c) 331,698,000 4. new zealand d) 1,411,780,000 revision read your answers to activity 1 to the whole class. china has a population of... revision now listen and check. one 1 two 2 three 3 four 4 five 5 six 6 seven 7 eight 8 nine 9 ten 10 eleven 11 twelve 12 thirteen 13 fourteen 14 fifteen 15 sixteen 16 seventeen 17 eighteen 18 nineteen 19 1-19的基数词 grammar 基数词 twenty 20 thirty 30 forty 40 fifty 50 sixty 60 seventy 70 eighty 80 ninety 90 twenty-one 21 twenty-two 22 ……………… 其它的十位数照此类推，如： thirty-one 31 forty-two 42 seventy-five 75 ninety-six 96 20—90等十位数 百、千、万 百 hundred 100 one hundred 200 two hundred 以此类推······ 千 thousand 1 000 one thousand 2 000 two thousand 英语里没有“万”这一单位，万也用thousand 表示。如： 10 000 ten thousand 一万 20 000 twenty thousand 两万 4、十万、百万 十万的说法是：100,000 a (one) hundred thousand 200,000 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 在英语中，对于万以上的数字，我们改如何表达呢？这就要记住英语数字读法特点。以下面一个数字为例： 6，500，431，729 hundred thousand million billion 注意每三个数为一个单位，按照百、 十、个向下读。 大数字的表达方法 英语分数的表示法： 用“基数词＋序数词”表示，其中基数词表示分子，序数词表示分母。分子除用one外，也可用a；如果分子大于1，分母要用复数形式。 two thirds of the students have passed the exam. 三分之二的学生考试及格了。 注意：1／2不能说a（one）second，而要说a（one）half。 1／4和3／4可以说a（one）fourth和three fourths，但常用a quarter和three quarters表示。 若它们在句子中作主语，则谓语动词是用单数还是复数取决于名词，即与分数所修饰的名词保持一致。 about two thirds of the students attend the meeting． 大约2／3的学生都参加了会议。 read the chart and answer the questions. grammar 1. which city had the largest population in 2018 2. which city’s population will increase the most from 2018 to 2030 3. which city will have a larger increase in its population, mumbai or cairo 4. which city/cities do you think will have the biggest population problem why mexico city had the largest population in 2018. dhaka will increase the most from 2018 to 2030. cairo will have a larger increase in its population. i think dhaka will have the biggest population problem, because its population will increase the fastest. 冠词是一种虚词，没有词义，没有数和格的变化，不能单独使用，只能帮助名词或起名词作用的其他词类说明其意义。 冠词有三种形式： 不定冠词 a(n), 定冠词the和零冠词。定冠词特指某一特定名词，不定冠词泛指一般普通名词。零冠 ... ...