1、Module 4Sandstorms in Asia沙尘暴是指强风将地面上的大量沙尘卷入空中，使空气特别浑浊，水平能见度低于100米的天气现象。在古今中外的历史上有哪些严重或恐怖的沙尘暴呢？A short history of sandstormsHow often do you think about sandstorms? Maybe not very often.But here we are going to see a few famous sandstorms out of many throughout history.Australia, September 22nd, 200
2、9This one was cruel because it made Australia look like another planet in an entire week.It looked like that the photos documenting the sandstorm were edited by someone who was severely color blind.The entire southern continent was painted orangered, but people still tried to go about their day as i
3、f 5 million tons of dust hadnt blown through their respiratory system.Pakistan, July 4th, 2007On this day, a sandstorm swept through the nation and shocked everyone with its hazy blinding sheets of sand.Everyone thought itd be over within a day.However, it poured for several days，displacing homes an
4、d flooding people to death.Temperatures ranged from 131 F during the day to 30 F at night and about 200 people died because of this sandstorm.North America, 19301935Farmers were very disappointed about this one.During the 1930s, North American regions from New Mexico to Saskatchewan underwent seriou
5、s sandstorms before World War.This was known as “The Dust Bowl” and it struck right around the time of the Great Depression.If you ask your elderly friends about it, theyll probably have something interesting to say.Let me give you an idea of how exhausting and annoying the sandstorm was: winds reac
6、hed up to 60 mph, and it lasted for FIVE YEARS.1document v记录2respiratory system 呼吸系统3shock v.使人震惊4hazy adj.模糊的5displace v.移走6undergo v.遭受Fill in the blanks according to the passage.1The sandstorm which happened in Australia, on September 22nd, 2009 lasted days.2About people died after the sandstorm
7、which happened in Pakistan, on July 4th，2007.3The wind of “The Dust Bowl” reached mph.【答案】1.seven2.2003.60Section Introduction & Reading and VocabularyPreparing根据提示写出下列单词1 adj.吓人的；可怕的2 adj.大量的；大规模的3 n.战役；活动4 n.进程；过程5 n.公民；市民6 n.沙尘；灰尘7 vt.预报；预告8 n.力量；力气9 vi.骑自行车10 n.面罩【答案】1.frightening2.mass3.campaig
8、n4process5.citizen6.dust7.forecast8strength9.cycle10.mask看单词学构词形容词th名词，常见的有：widewidth 宽度；longlength长度；strongstrength 强度，力量；warmwarmth 暖和，温暖；deepdepth 深度，厚度。根据提示补全下列短语1cut 砍倒2be/get caught 突然遭遇(风暴等)3 a result of由于4wake up 认识到，意识到5prevent sb. doing sth.阻止某人做某事6one another一个接一个地【答案】1.down2.in3.as4.to5.
9、from6.after根据提示补全下列教材原句1They are often so thick that you cannot see the sun, and the wind is sometimes strong enough to move sand dunes.沙尘常常如此之厚以至于你看不到太阳，并且有时候风很强，足以移动沙丘。2“To have been caught in a sandstorm was a terrible experience，”he said.他说：“被困在沙尘暴中的经历真是太可怕了。”3Sandstorms in China appear to have
10、increased in recent years as a result of “desertification”因“荒漠化”越发严重，中国近年来发生沙尘暴的次数明显增加了。4The storms sometimes continue all day and traffic moves very slowly because the thick dust makes it difficult to see暴风有时持续一整天，车辆开得很慢，因为浓浓的尘埃降低了能见度。5To prevent it coming nearer, the government is planting trees.为
11、了阻止它越来越靠近北京，政府已经开始植树。阅读P32教材课文，选择最佳答案1What is the best description about a sandstorm according to the passage?AIt is a major disaster for many Asian countries for centuries.BIts strong wind carrying sand.CIt is a way to cause land to become desert.DIts a kind of natural disaster that cant be treated
12、.2What is the main reason for the increase of sandstorm in China recently?ATo be close to many deserts.BThe worsening of the weather in China.CThe result of desertification.DPeople cutting down trees and digging up grass.3What is the good suggestion when people meet sandstorm?ANot going out.BIf you
13、go out，just wear thick clothes.CWhen going out，wear a mask.DNever go out，just stay at home.4What is the best way to avoid the effects from the sandstorm?ATo live far away from deserts.BTo stay at home when a sandstorm happens.CTo wear mask if you want to go out.DTo plant more trees.【答案】14BCCD阅读P32教材
14、课文，在空白处填入适当的内容(1个单词)或括号内单词的正确形式Sandstorms have been 1. major disaster for many Asian countries for centuries.Scientists have tried many ways 2. (solve) this problem.When 3. (happen), sandstorms are so strong that you can see nothing.There is nothing to be done.Sandstorms appear to have increased 4.
15、a result of “desertification”， which is a process that happens when land becomes desert because of climate changes 5. because people cut down trees.Sandstorms affecting Beijing, traffic moves 6. (slow) because the thick dust makes 7. difficult to see.When a sandstorm arrives, experts advise people n
16、ot to go out.To be cycling in a sandstorm is 8. (frighten)The winds are strong.If you want to go out, youd better 9. (wear) a mask.The desert is only 250 kilometres away to the west of Beijing.To prevent it 10. (come) nearer, we are planting many trees.【答案】1.a2. to solve3.happening4.as5and6.slowly7.it8.frightening9.wearing