精选2017_2018学年高中英语Module4SandstormsinAsia课时跟踪练二Introduction

MODULE 4 Sandstorms in Asia 亚洲的沙尘暴Sandsto rms in Asia Sandstorms have been a major disaster for many Asian countries for centuries. Scientists have tried many ways to solve this problem and in China, a mass campaign has been started to help solve it. Sandstorms are strong, dry winds that carry sand. They are often so thick that you cannot see the su n, and the wind is sometimes strong enough to move sand dunes. The four main places in the world where there are sandstorms are Central Asia, North America, Central Africa and Australia. Ren jianbo, from Inner Mongolia described a terrible sandstorm he experienced as a child in the desert. “To have been caught in a sandstorm was a terrible experience,” he said. “There was nothing to be done. It was the most frightening and the most dangerous situation I’ve ever been in. You just had to hope you’d survive. I thought 几个世纪以来沙尘暴一直是许多亚洲国家的主要灾害。

Module 4 Sandstorms in Asia Section Ⅳ Other Parts of the Module[原文呈现]The Green Movement①Some countries are better than others at②looking after③the environment. In Europe, Germany and the northern European countries work very hard to improve the environment. People in countries such as Germany put their garbage into④different bags — paper in one bag, plastic in another bag, etc. The garbage is then taken away⑤and, if possible⑥，recycled⑦. CFCs (chloroflurocarbons), chemicals which are found in refrigerators and aerosol cans⑧，are not allowed⑨. There are laws that do not allow people to burn too much coal⑩.In the 1970s⑪，as people learnt more about environmental problems⑫，the “Green” movement began and soon spread⑬all over⑭Europe. The “Green” movement tries to get governments to think⑮seriously about the environment and how to look after it. It collects information about how industry is damaging the environment and gives this information to newspapers.[读文清障]①the Green Movement绿色运动②at在此处表示“在……方面”。

Module 4 Sandstorms in Asia Section Ⅲ Grammar 动词不定式和but＋不定式语法图解探讨发觉①Experts hope to learn more about the movement of thunderstorms.②There was nothing to be done.③The storms sometimes continue all day and traffic moves very slowly because the thick dust makes it difficult to see.④When a sandstorm arrives in the city, weather experts advise people not to go out.⑤It is difficult to breathe and the dust makes me ill.⑥To prevent it coming nearer, the government is planting trees.⑦My job is to teach.⑧I can do nothing but wait at home.⑨She has no choice but to give in.[我的发觉](1)①～⑦句中，不定式在句中别离充当宾语、定语、宾语、宾语补足语、主语、状语和表语。

③句中，it 为形式宾语；⑤句中，it为形式主语。

(2)由④句可知，不定式的否定式为not_to_do。

由②句可知，不定式的被动式为to_be_done。

(3)由⑧⑨句可知，不定式在介词but后面时，若是but之前有行为动词do的各类形式，那么介词后的不定式不带to，不然带to。

一、动词不定式(一)动词不定式的时态和语态语态主动被动时态一般式to do to be done进行式to be doing /完成式to have done to have been done1I hope to see you next week.我希望下周能见到你。

Module 4 Sandstorms in Asia Section Ⅰ Introduction &Reading Pre-readingIn April 2012, a dust storm that originated in China and Mongolia took a six­day journey across more than ten thousand kilometers of sea and open land to Arizona in the United States. The cloud was so dense that it seemed as if the sun were setting early. At least one person thought a volcano had erupted.Although traveling dust storms are nothing new, the dust now often contains chemical or metallic substances that contribute to respiratory illnesses (呼吸道疾病) and damage the environment. At present, a group of researchers in Asia is studying aerosol particles and their effects on the environment — and they have plenty of dust to work with.Dust storms are one of the repercussions (后果) of humans messing around with Mother Nature. Although they are a natural phenomenon, dust storms have been occurring more often, at shorter intervals, and with greater force in recent years, and human activity is the cause.It is a fact that excessive herding of animals and exploitation of grasslands are responsible for the majority of dust storms. This means that dust storms are largely a result of human actions; in other words, they are controllable.Section_ⅠIntroduction & Reading —Pre­reading[原文呈现]Sandstorms① in AsiaSandstorms have been a major②disaster for many Asian countries for centuries. Scientists have tried many ways to solve this problem and in China, a mass③campaign④has been started to help solve it.Sandstorms are strong, dry winds that carry sand⑤.They are often so thick that you cannot see the sun⑥， and the wind is sometimes strong enough to move sand dunes⑦. The four main places in the world where there are sandstorms⑧are Central Asia, North America, Central Africa and Australia. Ren Jianbo, from Inner Mongolia described a terrible sandstorm he experienced⑨as a child in the desert. “To have been caught in a sandstorm⑩was a terrible experience，” he said.“There was nothing to be done ⑪. It was the most frightening and the most dangerous situation I’ve ever been in ⑫. You just had to hope you’d survive. I thought I was going to disappear under the sand.”[读文清障]①sandstorm/'sændˌstɔːm/n.沙尘暴②major/'meIdʒə/adj.主要的；多数的③mass/mæs/adj.大量的；大规模的④campaign/kæm'peIn/n.战役；活动⑤that carry sand是定语从句，修饰winds, that在从句中作主语。

2018届高考英语顶尖学案：外研版Module 4 Sandstorms in Asia亚洲的沙尘暴核心词汇1．The ice____________(融化)when the sun shines on it.2．According to the weather____________(预报)it will be cloudy tomorrow. 3．Have you got any____________(证据)to support this statement?4. It’s difficult to cross the desert by car，but not____________(绝对地，完全地)impossible.5．Mary is always____________(报怨)about something.6．All the____________(公民)should enjoy equal rights.7．This law provides____________(保护)for threatened animals and plants. 8．These glass bottles can be____________(重新利用)．to____________problems.(environment)9．____________your health，we’re very____________about your illness though you always say there’s no cause for ____________.(concern)10．An unhappy home ____________can affect a child’s behaviour，so we should pay attention1.melts2.forecast3.evidence4.absolutelyplaining6.citizens7.protection8.recycled9.Concerning；concerned；concern10.environment；environmental高频短语1．________________ 砍倒，砍伐2．________________ 挖出；掘出；开垦3．________________ 突然遭遇(风暴等)4．________________ 一个接一个地5．________________ 对……有……影响6．________________ 吸收；接纳；收留7．________________ 放出；发出；宣称；公布8．________________ 为……担心9．________________ 不得不；不能不10．________________ 简言之；概括地讲11．________________ 拿走；拆去；解除12．________________ 浏览1.cut down2.dig up3.be/get caught in4.one after another5.have a(n)...effect on6.take in7.give out8.be concerned about9.can’t help but 10.in a nutshell 11.take away 12.look through重点句式1．“________________________a sandstorm was a terrible experience，”he said.他说：“遭遇沙尘暴是一次可怕的经历。

Module 4. Sandstorms in Asia教学设计I.教学目标：1. 知识目标: 在理解文章的基础上掌握新字词。

2. 技能目标:学生能够熟练地复述、总结文章的主题，并能够灵活运用知识点。

3.情感目标:学生在学完课文之后应对生态环境的保护问题更加明确，并能有效地采取措施。

II. Teaching and learning methods（教学方法）1. The Audio-lingual Method 听说法2.The Communicative Language Teaching Method 交际教学法3. Task-based Language Teaching Method 任务型教学法III. Teaching procedures（教学步骤）1.日常小活动（3 分钟）新课开始之初首先以日常小活动开始，主题词为“a funny thing”.通过导入三张搞笑图片使同学们轻松进入学习状态，后引出每日谚语“No discord, no concord.(不打不相识)”2. Lead-in(导入，2分钟)通过回顾第一模块主题词“Europe”,引出其相邻的大洲亚洲“Asia”, 结合第三模块的主题词“disasters”,引出今日主题“Sandstorms in Asia”.3. Pre-reading(读前活动，2分钟)阅读之前，老师首先通过问题“What have we already known about sandstorms?”引导学生回想对沙尘暴已知的知识，从而方便读中环节对其的深度理解。

4. Fast-reading(快读，5分钟)学生要求按照略读的提示快速阅读文章后进行段落主题词的连线。

注：文章共6段，设置的问题为8选6，衔接高考，加强逻辑判断。

I. How many paragraphs are there in our passage?II. Match each paragraph with its main idea.Para.1 A. The description of sandstorms and sandstorms in Asia.Para.2 B. The effects of sandstorms on Beijing.Para.3 C. The measures to prevent sandstorms coming to Beijing.Para.4 D. Ren Jianbo and Huang Xiaomei’s opinions on sandstorms.E. Sandstorms have been a major disaster.Para.5 F. What to do in a sandstorm.Para.6 G. Sandstorms in China appear to have increased。

Sandstorms in BeijingA general definition of a severe sandstorm is one that it occurs suddenly and affects large areas causing great losses to the national economy and the people. The number of severe sandstorms in Beijing has grown rapidly since the founding of the People's Republic of China. There were five in the 1950s, eight in the 1960s, 13 in the 1970s, 14 in the 1980s,and 20 in the 1990s. Severe and widespread sandstorms mainly occur in the period from March to May, especially in April.For instance, a devastating sandstorm raged Beijing from April 16 to 18, 1998. Blowing from west to east, it even stretched to the lower reaches of the Yangtze River. This storm was almost unprecedented in history, and when it met rain over Beijing, 'muddy rain' was formed.Human activities play an important role in the formation of severe sandstorms, basically through improper use of land, population growth and the rapid spread of urbanization. Beijing is located in the northern part of the Northern Plains of China. The west (Taihang Mountain), the north (Jundu Mountain) and the east (Yan Mountain) of Beijing are mountain areas. Lots of rivers stream out from these areas. Some of them pass through the territory of Beijing, for example Yongding, Chaobai and Wenyu rivers which used to be big rivers in ancient times, carrying large quantities of water and hence causing considerable erosion, with much bedrock moved along their course.The speed of water slowed down after the rivers entered into the plain, and the bedloads sedimented gradually. Beijing is located on the fan-shaped bed-rock sediments originating from the Taihang Mountain, Jundu Mountain and Yan Mountain. Originally, there were lots of flourishing virgin forests, which had the obvious function of preventing sandy winds. However, due to wars and the needs of construction for development of Beijing, these virgin forests were cut down and almost exhausted. Only some replanted trees were left in scattered mountain areas.According to statistics, the cover rate of forest in Beijing in 1950s was only 1.3 3.5%. Strong winds have become more frequent. Beijing area is below 50 meters, but the elevation of the northern mountain area is above 1,000 meters. The difference in topography facilitates the wind entering from mountain areas to plain areas. When the wind passes through the river valleys, due to the effect of topography, the power of wind is enhanced. In winter and spring, the average wind speed is 3.03.5 m/s, but on an increasing number of days it reaches above 45 m/s, which is the wind speed needed to release sand particles under dry soil moisture conditions. The activity of sandy winds in Beijing is influenced basically by local factors, but it also originates from the nearby peripheral provinces. Thus sand in the storms in Beijing include both local sources and sand from near-by Hebei and Inner Mongolia Autonomous Provinces.Effects from descending ground water levelsLakes, marshes and wetlands have important functions to improve the environment and to keep the moisture contents of the soil and the air. It should be noted, if the soil moisture in Beijing is 1%, even a wind speed of 17 m/s can not blow up sand and dust. But nowadays, in the spring time, the soil moisture is usually lower than 1%.。