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1、 Unit 9 Lesson 34Saving the earthpremainvocabuanalychartclosediscusshomeproposaltrueHelp, help!EarthThe area of desert is growing and good soil is gradually lost.WaterWater pollution is caused by mans waste. AirChemicals in the smoke cause a lot of damage and serious accidents take place from time t
2、o time.Choose the best answers1.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 h
3、old the soil in place on the hillside.2. It is safer to put up a nuclear power station as long as _ .A. it is built in the faraway areaB. it is worked completely by computersC. no radiation leaks(泄漏泄漏)D. no people live nearby4. The 1st part of the passage is mainly about _. A. the reasons why the ar
4、ea 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 about5. According to the text _ are the worst enemy of nature. A. cattle B. humans C. deserts D. chemicals3.What is the possible reason why the Mediter
5、raneancant 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.1. Many parts of the world with large populations and plenty of crops have become deserts.( T )2. La
6、nd may become poor if farmers do not limit their cattle.( T )3. Good soil is gradually lost these days as trees are being cut down.( T )4. Air pollution and water pollution are the two causes of the problem that many parts of the world have become deserts.( F )5. Chemicals in the smoke from power st
7、ations can travel hundreds of miles before falling down to the rain.( F )6. After a bad accident at a nuclear power station, 50% of the trees in Germany were damaged.7. The writer uses the examples of the accidents in both India and Russia to explain how water is polluted.8. Once oceans are polluted
8、, they are not able to clean themselves.( F )( F )( F )Vocabulary (passage 1)1.a large area of land covered with sand2. at one time3. thing that produces a result4. be unsuccessful or unable 5. to keep below or at a certain point6. step by step7. in the right or proper place8.be carried down by the
9、winddesertoncecausefaillimitgraduallyin placeblow away(Passage 2)9. many times10. become blindtime and time againlose ones sight(Passage 3)11. land along the edge of a sea lake , etc. 12. appearing in a place13. make things dirty14. to flow quicklyshorepresentdirtypourearthairwatermost serious probl
10、emsEARTHThe area of desert is growing. AIRChemicals in smoke cause a lot of damage.travel ; fall to the ground in the rainWATERwaste from factories and citiesPollution causesresultsnot enough rain cattle ; trees be cut downhave less farm land smoke from factories, power station, cars;accidents at nu
11、clear power stations and factoriesforests be destroyed;fish be killed ;do harm to peoplewaste from factories and citiesliving things be killed ; have less drinking water ;nowhere to swim1.The area of desert in the world is growing. One cause is the increase of the number of _, which eat up grass.Wit
12、hout grass, land turns into _. _ problem isthat 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 ri
13、vers, 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
14、 _. Some lakes have been seriously _. A lot of diseases are _ in them,so they are not safe for_ and lots of animals and plants in them have been killed. cattledesertAnotherholdblowChemicalspolluteinjuredthemselvesproblemspollutedpresentswimming2.What steps should we take to save the earth?1.What wou
15、ld happen if such pollution continued?Homework假如你是班长，现在要你代表全班同学给市长写一封信反映学假如你是班长，现在要你代表全班同学给市长写一封信反映学校前小河被污染的情况。校前小河被污染的情况。 内容应包括以下几点：内容应包括以下几点： 1。过去河水清澈见底，还有小鱼在水中游来游去。过去河水清澈见底，还有小鱼在水中游来游去。 2。现在河水又臭又脏，水面上到处都漂着各种垃圾。现在河水又臭又脏，水面上到处都漂着各种垃圾。 3。河水被污染的原因是沿河几家工厂大量排放污水和沿。河水被污染的原因是沿河几家工厂大量排放污水和沿 河居民乱丢垃圾。河居民乱丢垃
16、圾。 4。希望政府能采取一些措施来解决这一问题。希望政府能采取一些措施来解决这一问题。 5。 呼吁人们保护我们的环境。呼吁人们保护我们的环境。 字数：字数：100 字左右字左右Dear Mayor,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.
