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1、【创新方案】高中英语Module4Section ntroduction Reading Pre reading课件 外研版必修3 Module 4Section Step 1 Step 2 Step 3 Step 4 Step 51.Have you even been caught in a sandstorm? What do you think is the best way to prevent a sandstorm?2.Do you know about the dust storm? Do you know what damage a dust storm may causeD
2、ust storms dont just happen in the middle of the desert. They happen in any dry area where loose dirt can be easily picked up. Grains of sand thrown into the air by the wind usually fall back down to the ground after a few hoursSmaller bits of particles 颗粒 stay in the air for a week or longer and ca
3、n be blown thousands of miles awayDust from the Sahara desert is always blown across the Atlantic, causing bright red sunrises and sunsets in MiamiThe dust doesnt stop there. It keeps traveling as far as the Caribbean and the Amazon Basin A dust storm is a strong, violent wind that carries fine part
4、icles like clay, dust and other materials for long distances. The fine particles dance around in the air during the storm. The scary thing about a dust storm is that they can spread over hundreds of miles and rise over 10,000 feet 305 meters -well over the height of a telephone pole. They also have
5、wind speeds of at least 25 miles per hour 40 kilometers, which may be not strong enough to blow the feathers off a chicken but still something worth avoidingDont be surprised if you suddenly see a dust storm heading your way. Dust storms usually arrive without warning. The dust is blinding, making d
6、riving impossibleOften they only last for a few minutes but storms usually leave serious car accidents behind. If youre in a car during a dust storm, remind the driver to pull over to the side of the road and turn off the headlights. Never stop in the middle of the road During the 1960s there were e
7、ight dust storms that caused some serious damage. Recently Australia was having problems with dust storms. Researchers said the storms cost Australia about 20 million dollars a year in medical bills because of diseases caused by dust storms In mild dust storms its still possible to walk around altho
8、ugh you wouldnt want to. The wind carrying the dust will leave things looking like they were just hit by a tornadoThe best thing to do is find safe cover in a building or stay in your car.When looking at the following pictures, what may occur in your mind?Sandstorms of course! Do you know the harmfu
9、l effects of sandstorms?As far as I know, sandstorms can_参考答案:kill people and animals, pull down buildings and cause poor harvests.pollute the atmosphere and carry away top soil. The breaking out of sandstorms brings more solid pollutions into the atmosphere and damages the environment and soil in t
10、he attacked areas, thus affecting the agriculture for many years.Do you know how many kinds of behaviors are unfriendly to the environment?_参考答案:cutting down the trees/using plastic bags/ pouring waste water into rivers and oceans/giving out poisonous waste gasesScan the passage and match each parag
11、raph with its main idea.Para. 1 A .Sandstorms sometimes affect Beijing.Para. 2 B .Sandstorms do a lot of damage to people.Para. 3 C .The government plants trees to prevent sandstorms.Para. 4 D .Sandstorms have been a major disaster for many Asian countries for centuries.Para. 5 E .Sandstorms in Asia
12、.Para. 6 F .Sandstorms in China appear to have increased答案:Para. 1-Para. 6 DEFABC.Choose the best answer according to the passage.1.When sandstorms happen, what will you wear if you go out?A .A hat. B .A coat.C .A maskD .A tie.2.How many kilometres is the desert away to the west of Beijing?A .350B .
13、250.C .150D .200.3.Which statement is WRONG?A .People sometimes cant forecast the strength of astorm.B .The government plans to continue planting treesfor the next ten years.C .Northwest China is part of the sandstorm center in Central Asia.D .Sandstorms sometimes affect Beijing.4.According to the t
14、ext, we can learn that sandstorms_.A .cause people to buy more masksB .are difficult to deal withC .are not dangerous but frighteningD .will disappear within five years5.Which of the following is TRUE according to the text?A .Ren Jianbo thought he would probably die from thesandstorm.B .A sandstorm
15、can be forecast several months before it arrives.C .Huang Xiaomei frequently cycles in sandstorms.D .Sandstorms occur in Beijing mainly because of itsdry climate.答案:1.C 2.B 3.B 4.B 5.A.Fill in the blanks according to the passage.Sandstormsstrong, dryThey are 1 winds that What are they ?carry sand.Ho
16、w powerful are They are strong enough to move sand dunesthey? 2.In Central Asia, Where do they often North America3,Central Africa occur ?and .Sandstorms in Chinadesert areasSandstorms begin in 4 and appear to have increased in recent years as a result of “desertification. It is a process that happe
17、ns The causewhen land becomes desert because ofclimate changes5 and because people cut down trees and dig up grass.orangeCitizens wake up to an 6sky and Sandstorstrong winds that cover the city in a thick, ms inbrown-yellow dust. The storms sometimes lastall day and affect traffic.Sandstorms in Chin
18、aRen Jianbo described a sandstorm inTwo personsHuang Xiaomei told people about adescriptionsBeijingsandstorm in 7mass campaignA 8 has been started inChina.The measures The government has already planted 30 billionover 9 trees and plans to fivecontinue planting for the next 10 years.Fill in blanks ac
19、cording to the passage Sandstorms have been a major disaster for many Asian countries for centuries. Scientists have tried many solveways to 1 this problem and in China, a mass campaign2has been started to help solve it Sandstorms are strong, dry winds that carry sandsoThey are often 3 thick that yo
20、u cant see the sun, and enoughthe wind is sometimes strong 4to move sand dunes.centreNorthwest China is part of the sandstorm 5 in Central Asia. Sandstorms begin in desert areasaffectSandstorms sometimes 6 Beijing. Citizens wake up coverto an orange sky and strong winds that 7the city in a thick, br
21、own-yellow dust.forecastThe Chinese Central Weather Station can 8 a sandstorm some weeks before it arrives in Beijing, but the strength9 of the storm sometimes surprises peopleThe desert is only 250 kilometres away to the west of preventBeijing. In order to 10 it coming nearer, the government has planted more than 30 billion trees and plans to continue planting for the next five years.