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课件网) Know our world Unit 7 The World Is a Big Place Lesson 38 All of us have studied geography. Can you say the names of the continents and oceans in the world? The earth is a very special planet. planet n 行星. The population of the world will be over 7 billion. billion 十亿，千兆 It is increasing very quickly. increase 增加 Oceans cover 71% of the earth’s surface. surface n 表面 These Indian women are very beautiful in their Sari. Indian adj印度的 n印度人 planet n. 行星 billion n. 十亿；千兆 total n. 总计；总数 adj. 总的；总计的 increase v. 增加；增大 Indian adj. 印度的 n. 印度人 Atlantic n.&adj. 大西洋（的） Arctic adj. 北极的 word study Read the lesson and match each paragraph with its main idea. Task Reading Paragraph 1 a.Six of the seven continents are good for people to live on. Paragraph 2 b.We should treat the earth well. Paragraph 3 c.An increasing population is a big problem for the earth. Paragraph 4 d.Two thirds of the earth is covered with oceans. Paragraph 5 e.People cannot live everywhere on the earth. 1. What is the problem the earth faces? 2. People can live on the seven continents. ( ) (T/F) 3. How much of the world is covered with land? 4. What is largest part of the ocean ? The population is increasing very quickly. F One third . The Pacific Ocean. Listen to the passage and then answer the questions. Listening Language points 1.In the year 2010, the world’s population was over 7 billion in total. 2010年世界总人口超过10亿。 total n 总计，总数 adj 总的，总计的 in total 总计，总共，同义短语 in all There are 2 thousand students in total . He thought he was a total fail . He can’t trust anyone totally. Why should we trust a total stranger? The total population of Japan is smaller than that of China. The school has a total of 900 students. 2.It is increasing very quickly.它增长的非常快。 increase v 增加，增长，反义词为decrease。 eg：Wide reading will increase your vocabulary. His power increased. 辨析increase by与increase to increase by increase by＋倍数或百分数，表示“增加了……倍或百分之……”。 The population of this city has increased by 5 percent.这个城市的人口增长了5%。 increase to increase to＋具体增长后的数字，表示“增加到了……”。 Our coal output has increased to 6 million tons this year.我们今年的煤产量增加到了六百万吨。 1.—The price of food, drinks and clothes _____ so quickly these years. —Oh, no, but I don’t think so.(荆门) A．develops B．raises C．improves D．increases 2. The temperature increased _____ 37 degrees. Compared with last year, our coal output has increased _____ three times. D to by 3.Only one third of our planet is land. Oceans cover two thirds of the earth’s surface. 分数表达法：分子用基数词，分母用序数词。 分子如果大于1，分母用复数形式。 提示：1) 二分之一习惯上用a/one half; 四分之一和四分之三常用a quarter和 three quarters 表示。 eg：Two thirds of the students in our class are girls. 我们班三分之二的学生是女生。 2)当分数＋of结构作主语时 ... ...
