高二人教版英语unit9课文课件.ppt

Unit 9 Lesson 34 Saving the earth -By Gu Bingyu,Our earth is injured and she is being sent to hospital .,earth,air,water,most serious problems,The area of desert is growing.,too many sheep and cattle,all the grass be eaten,grass never grow again ; the land become desert,trees be cut down,nothing to hold,soil be blown away,soil be washed into,Chemicals in smoke cause a lot of damage.,travel ; fall to the ground in the rain,trees be destroyed,fish be killed,smoke from factories , power stations and cars,accidents,I.,II.,Time :,1986,Place :,at a nuclear power station in Russia,Results :,125,000 die,Time :,Place :,Results :,1984,at a factory in the town of Bhopal in India,2500 be killed; many lose sight,waste from factories and cities,1989,35,000,34,000,10,000,4,800,a sinking oil tanker,summary,earth,air,water,fact,causes,results,desert grow every year,be polluted; chemical rain,be polluted; diseases,cattle ; trees be cut down,have less farm land,smoke from ; accidents,forests be destroyed; fish be killed ; do harm to people,waste from ; accidents,living things be killed ; have less drinking water ; nowhere to swim,Choose the best answers,1.Which of the following statements is not true according to the passage? A. Farmers are increasing the numbers of their cattle. B. Farmers are limiting the numbers of their cattle. C. Heavy rains and strong winds are destroying the valuable soil. D.Fewer trees are left to hold the soil in place on the hillside. 2.Air pollution doesnt cause _. A. the destroying of forests B. the killing of fish in lakes C. illnesses and injuries to people D. the spreading of clouds of radiation 3.What is the possible reason why the Mediterranean cant clean itself? A.One quarter of the shores are polluted. B. A lot of diseases are present in the water. C. It lies between Europe and Africa. D. It has only one narrow entrance to the ocean.,4. The 1st part of the passage is mainly about _. A. the reasons why the area of desert is growing B. the numbers of cattle farmers should keep C. the valuable soil strong winds blow away D. the damage rains and winds bring about 5. If people change their habits, pollution _. A. can be completely stopped B. will become less and less C. can do less damage to people D.will do no harm to people 6. According to the text _ are the worst enemy of nature. A. cattle B. humans C. deserts D. chemicals,Fill in the blanks with suitable words.,1. The area of desert in the world is growing. One cause of the problem is the increase of the number of _, which eat up grass. Without grass, land turns into _. _ problem is that trees are cut down. There is nothing to _ the soil. Strong winds also _ away the soil on the top of the fields. 2. Air pollution comes from factories, power stations and cars. _ in the smoke from power stations can destroy trees and kill the fish in the rivers, lakes and seas. Time and time again there are serious radiation accidents that _ the air. Many people were _ or killed. 3. Waste from factories and cities can also pollute water. Oceans are able to clean _, but certain seas, once they are polluted, are not able to do so. Lakes also have the same _. Some lakes have been seriously _. A lot of diseases are _ in them, so they are not safe for _ and lots of animals and plants _ them have been killed.,cattle,desert,Another,hold,blow,Chemicals,pollute,injured,themselves,problems,dirtied,present,swimming,in,A PROPOSAL,1. Dont use one-off chopsticks , lunch-boxes and cups.,2. Dont use paper tissue when you sneeze,use handkerchief instead.,3. Dont send post-cards.Send electronic cards by e-mail.,4. Dont throw rubbish at will.,5. Dont make a lot of noise.,6. Dont waste water,7. Dont waste electricity.,8. Dont destroy trees and grass.,Homewor