Lesson38TheWorldIsaBigPlace

1、Unit7 Know Our World,Lesson 38: The World Is a Big Place!,How many continents are there in the world? What are they? What do you know about the place where you live?,Think About It,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（

2、的） Arctic adj. 北极的,Learn some new words,1. What is the problem the earth faces? 2. People can live on the seven continents. ( ) (判断正误) 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.,Lis

3、ten to the passage and then answer the questions.,Lets Do It!,Read the lesson and match each paragraph with its main idea.,Paragraph1,a. Six of the seven continents are good for people to live on.,Paragraph2,b. We should treat the earth well.,Paragraph3,c. An increasing population is a big problem f

4、or the earth.,Paragraph4,d. Two thirds of the earth is covered with oceans.,Paragraph5,e. People cannot live everywhere on the earth.,Fill in the blanks with the correct forms of the words in the box.,increase dry surface billion total,1. The number of swimmers here is _ quickly because its very hot

5、 these days.,2. The school has a _ of 900 students. 3. I think it may be the _ season of the year. 4. The _ of our body is skin. It protects us. 5. How many _ of people are there in the world now?,increasing,total,driest,surface,billions,Match the seven continents with their correct descriptions.,.,

6、 the worlds population was over 7 billion in total. 世界上人口总计已超过70亿。 population 意为“人口”，常被看作是一个整体，一般不加s。作主语时，谓语动词要用单数形式。 如： The population of Germany is about 81,000,000. 德国大约有八千一百万人口。,Language points,(2) 表示“的人口”可用“the population of + 地名”，也可用“the population in + 地名”，作主语中心词时，谓语动词用单数形式。如： The population

7、of Canada is about 30,000,000. 加拿大的人口是三千万。 表示某国、某城市有多少人口时，还可用. has a population of . 结构。如： The city has a population of 30,000. 那座城市有三万人口。,I. 根据首字母或汉语提示，完成单词。 1. The biggest ocean in the world is the P_Ocean. 2. Almost everyone knows the e_ goes around the sun. 3. Deserts may cover three _ (百分比) of

8、the earths surface. 4. The population of the world is _ (增长) quickly. 5. Hainan is the second-largest _ (岛屿) in China. 6. After half a month at sea, we saw _(陆地).,land,acific,arth,percent,increasing,island,Exercise,II. 用适当的介词填空。 1. _ 2025, the world will have 7.8 billion people. 2. Milk is good _ ch

9、ildren. 3. The Nile River is the longest river _Africa. 4. Which part _ the world do you live in? 5. _ the surface of the earth, there is some dry land.,On,By,for,in,of,III. 连词成句。 1. there, the, many, are, how, world, in, people _? 2. different, made, is, the, of, world, up, many, places, of, kinds

10、_. 3. the, in, is, girl, to, he, red, pointing _. 4. driest, the, continent, is, worlds, Antar-ctica _. 5. good, all, the, singing, not, are, children, at _.,Not all the children are good at singing,How many people are there in the world,The world is made up of many different kinds of places,He is pointing to the girl in red,Antarctica is the worlds driest continent,Ho