1、Lesson 50The World Is a Big place!Warming upNew wordscontinent n. 大陸land n. 陸地Europe n. 歐洲America n. 美國；美洲Antarctica n. 南極洲ocean n. 海洋；大海Pacific n. 太平洋the Pacific Ocean 太平洋the Atlantic Ocean 大西洋Indian adj. n. 印度（的）the Indian ocean 印度洋Arctic adj. 北極的the Arctic Ocean 北冰洋earth n. 地球；陸地；泥土surface n. 表面N

2、ile n. 尼羅河river n. 河流 Think about itWhich part of the world do you live in?What do you know about the place where you live?Listening task: true or falseBy 2050, there will be 9.1 million people in the world.There are 7 continents on the earth.The worlds longest river is Huanghe River.Read and answer

3、What are the seven continents?Africa, Asia, Australia, Europe, North America, South America and Antarctica.How many people are there in the world in the year 2000?6000 000 000Where do all the people live?On landHow many oceans are there?fourLanguage pointsIn the year 2000, the worlds population was

4、about six billion. 在2000年，世界人口大約60億。population n. 人口，人數1) 集體名詞，無復數形式，在句中做主語時，謂語動詞用單數形式。如：The population today is growing very fast. 目前的人口增長很快。2) population之前若有分數或百分數修飾時，用于指具體人數作主語時，謂語動詞則用復數形式。如：About three fifths of the population here are farmers. 這兒大約有五分之三的人口是農民。3) 表示某一范圍內有多少人口時，用has a population

5、of+數詞。如：China has a population of 1.3billion. 中國有13億人口。4) 問某地有多少人口時，用What is/was the population of+地名？如：Whats the population of China? 中國有多少人口？5) 表示人口的多少時，用large或small修飾，而不能用many, more或few等。如：China has the largest population of the world. 中國是世界上人口最多的國家。【拓展】1）表示某地人口多少還可以表達為：The population of+地點+is+數詞

6、。如：The population of the world was about 6 billion in the year 2000. 在2000年世界人口大約是60億。2) 表示某地人口多或少時可以表達為：某地+has + a+ large/small + population。如：China has a large population. 中國人口眾多。3) 問某地與多少人口時，還可以表達為：How large is/was +population +of +地名？如：How large is the population of China? 中國有多少人口？友情提示：詢問某地有多少人口

7、，可以用how many people來替換。如：How many people are there in China? 中國有多少人口？People live on land. 人們住在陸地上。land n. & v. 1) n.陸地；by land陸路 on land在陸地上Many farmers left the land for jobs in town. 許多農民離開土地去城里工作。2) vi. 上岸；著陸；著地。They landed at London from the ship. 他們在倫敦離船上岸。3) vt. 使著陸；使降落；使上岸。The pilot landed th

8、e plane safely. 飛行員使飛機安全著陸。Not all land is good for people. 并非所有的陸地人們都可以居住。be good for對于有好處。如：This is good for you. 這對你有好處。【拓展】be good at“在方面擅長”，之后加名詞或者動名詞。如：Im good at English. 我英語學得好。He is good at football. 他擅長踢足球。be bad for“對沒有好處”。如：Eating too much is bad for you. 吃得太多對你沒有好處。Be good for + sb./ st

9、h. + to+動詞原形，“某人/某物干某事有好處”。如：Its good for animals to live in the forests. 動物住在森林里有好處。The world is made up of many different kinds of places. 世界是由許多不同類型的地區組成的。be made up of表示“由組成（構成）”，強調主語由兩部分或兩部分以上組成（構成）。如：The group is made up of ten students. 這個組由10名學生組成。【拓展】be made of表示“由制成”，仍能看出原材料的原樣。如：The chair

10、 is made of wood. 這把椅子是用木頭做成的。be made from表示“由制成”，看不出原材料。如：Paper is made from wood. 紙是由木頭制成的。Be made by表示“某物由某人或某單位制造”，強調動作與執行者之間的關系。如：The kite is made by Jim. 這風箏是吉姆做的。be made in表示“某物產于某地”，后接產地。如：This bike is made in Jinan. 這輛自行車是濟南產的。be made into表示“做成某產品”。如：Wood is made into paper. 木頭被制成紙。Lets do itThe world is made up of different kinds of places. Talk about things you know about the worlds geography. What are some of the worlds physical features? Wh