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1、home,Objectives,In this unit, you will, learn some basic facts about our earth; enlarge your vocabulary for describing the earth and the environment; know something about Earth Day; study a list of different prepositions; read and write slogans.,Objectives,main,Listening and Speaking,Text A,Grammar
2、Tips,Text B,Comprehensive Exercises,Practical Reading and Writing,Warm-up,Earth Day,Warm-up-Background Information,Discussion,Background Information,Warm-up,Plans for the first Earth Day were announced in San Francisco at the UNESCO Conference on the Environment held in November 1969. Former US Sena
3、tor Gaylord Nelson suggested that March 21, the first day of spring, be established as Earth Day for a nationwide teach-in on the environment. On April 22, 1970, an estimated 20 million people, 2,000 colleges and universities, 10,000 grammar and high schools and 1,000 communities took part in the fi
4、rst nationwide demonstrations on environmental problems in the USA,Warm-up-Background Information,Background Information,Discussion,Warm-up,which marked the beginning of the worlds celebration of Earth Day. On the twentieth anniversary of that event, April 22, 1990, more than 200 million people in 1
5、41 countries participated in Earth Day celebrations. The activities were approved by the United Nations and since then April 22 of each year is celebrated as International Earth Day.,Question 1: Can you name the earths seven continents and five oceans and point them out on a map?,The seven continent
6、s are Asia, Africa, Europe, South America, North America, Antarctica, Oceania. The five oceans are the Pacific Ocean, the Atlantic Ocean, the Indian Ocean, the Arctic Ocean, and the Antarctic Ocean.,Hints,Warm-up- Discussion,Discussion,Background Information,Warm-up,Question 2: Can you name the nine
7、 planets in the solar system and position them?,They are Mercury(水星), Venus(金星), Earth(地球), Mars(火星), Jupiter(木星), Saturn(土星), Uranus(天王星), Neptune(海王星), Pluto(冥王星) in the order of their closeness to the sun.,Hints,Warm-up- Discussion,Discussion,Background Information,Warm-up,A. Choose the best resp
8、onse to each sentence you hear.,1.,Listening,Listening and Speaking,Speaking,Listening,I. Listening,A. Yes, all right. B. Class is over now. C. How time flies!,D. Yes, lets hurry.,Listening,Listening and Speaking,Speaking,Listening,2.,A. What a pleasure. B. Im very pleased. C. Its my pleasure.,D. Pl
9、eased to meet you.,3.,A. Yes, you may. B. No, please dont. D. Youd better not.,C. Peter Jones.,Listening,Listening and Speaking,Speaking,Listening,4.,A. Three years ago. C. Maybe in three years. D. No, only three years.,B. For three years.,5.,A. Ive got no idea. B. Ive been there. C. Its very far fr
10、om here.,D. Its very small, but nice.,To pollute means to make things unfit or unclean for use. Man has been polluting the earth from the time he first made fire, washed his clothes in the river and threw his waste on the (1) . When land was used up or water became dirty, men moved on to another pla
11、ce. At first the problem was not so serious because there was (2) clean air, land and water, and there were fewer people. All the dirty things could be absorbed by,Listening,Listening and Speaking,Speaking,Listening,ground,_,B. Fill in the blanks of the following passage according to what you have j
12、ust heard.,plenty of,_,nature. But this is no longer (3) . The growth of population and the development of industry have changed that. Nowadays, pollution is beginning to threaten our (4) and life.,Listening,Listening and Speaking,Speaking,Listening,health,_,true,_,Discuss with your partner the foll
13、owing questions based on the information from the above passage you have just heard.,Speaking,Listening and Speaking,II. Speaking,Speaking,Listening,1. What does pollution mean according to the passage? Why has it become serious today?,Hints,Pollution means to make things unfit or unclean for use. I
14、t usually includes water pollution, air pollution, soil pollution, sound pollution, light pollution, etc.,Speaking,Listening and Speaking,Speaking,Listening,2. Do you think Chinas environment has become better or worse? Give examples to support your view.,Things to do to prevent pollution: (1) garba
15、ge recycling (2) waste water treatment (3) soil conservation (4) driving less (5) atmospheric monitoring,3. Is there anything you think you can do to protect our environment?,Hints,飞行员，领航员,Comprehension,Words and Expressions,Vocabulary Building,Text A Words and Expressions,Text Study,soil n.,Text A,
16、土壤，土地,海员，水手,建造者，施工人员,builder n.,sailor n.,pilot n.,as far as,到为止，远到；尽可能地,视野；观点,view n.,包括，包含,include vt.,小块，片,patch n.,Comprehension,Words and Expressions,Vocabulary Building,Text A Words and Expressions,Text Study,Text A,轮廓，外形,farmland n.,农田,迅速前进 速度,宇航员,astronaut n.,speed vi. n.,outline n.,形容，描述,describe vt.,巨大的，极大的,huge adj.,表面被覆盖着,be covered with,包围，围绕,surround vt
