(
课件网) Module 9 Population Unit 1 The world's population was about 7.8 billion in 2020. Reaed these numbers 100 _____ 1000 _____ 1000000 _____ 1000000000 _____ one hundred one thousand one million one billion 130 _____ one hundred and thirty 1250 _____ one thousand, two hundred and fifty 1652891 _____ one million, six hundred and fifty-two thousand, eight hundred and ninety-one 1345872624 _____ one billion, three hundred and fourty-five million, eight hundred and seventy-two thousand, six hundred and twenty-four 大数字念法： 每三个数字为一个单位，每个单位的数字按照百、十、个位向后读，遵循百位以内数字的读法。进位读法为thousand, million, billion向上递增。 Listen and choose the correct answer Tip: circle the key words Listen and choose What are they talking about A. The problem of the population increase. B. The situation of the population increase. C. The reasons for the population increase. Tip: circle the key words Listen and answer 1.1 1. What is Tony doing 2. What problems does the increase population cause 3. Which countries are seeing the most population growth 4. What's wrong with countries with low birth He is preparing a report called"The world's population" . It causes a lot of problems, such as too much traffic and noise. India, Nigeria and Pakistan. There aren't enough people to do all the jobs, or enough young people to look after the older ones. Read and complete Tip: circle the key words about 7.8 billion 8.5 billion about 1.5 billion Underline the right words and expressions Lisen and read prepare sth (for sb/sth) 为……作准备 prepare to do sth 准备做某事(表示目的) make a noise 吵闹 increase by+倍数或百分数，增长了... increase to+数字，增长到 too much +不可数名词 too many +可数名词 much too+adj cause for, 对于...的原因 in the cause of，为了 低生育率 不定冠词a/an 不定冠词用来修饰可数名词单数，指人或物中的某一个或某一类，但不具体说明石何人何物。 1.表泛指，单一，某次，首次提到，不限定的人或事物 There is a dog lying on the ground. 2.表示某人或某物，以区别于其他种类 An elephant is much stronger than a man. 3.表示某类人或事物中任何一个 She is an English teacher. 4.表示“一"的数量，但数的概念没有one 强烈 There is a snowman in front of the house. 定冠词the 1.表示特指的人或事物 The man with flowers in his hand is Jack. 2.指谈话双方都熟悉的人或事物 Look at the roses, Bob. 3.复述前面提到过的人或事物 There is a man under the tree. The man is called Robert. 4.表世界上独一无二的事物 We need to protect the earth. 5.用在表示方位的名词前 In the south of the river,there is a boat. 6.用在乐器前 She began to play the violin at the age of 5. 7.用在江河，海洋，山脉等名称前 I have never been to the Himalaya Mountains. 8.用在含有普通名词的专有名词前 He is from the United States. 9.用在姓氏前表一家人 The Greens are going to the Mount Emei. 10.用在序数词和形容词最高级前 The sun is the nearest to the earth. 巩固练习 Testing for words 1. 噪音；杂音（n.）_____ 2. 准备；预备（v.）_____ 3. 笔记；随笔（pl. ... ...
