《Sandstorms in Asia》ppt27（14份）
- 资源简介：
2017_2018学年高中英语Module4SandstormsinAsia（课件试题教学案）（打包14套）外研版必修3
2017_2018学年高中英语Module4SandstormsinAsiaSectionⅠIntroduction&ReadingPre_reading教学案外研版必修320180128168.doc
2017_2018学年高中英语Module4SandstormsinAsiaSectionⅠIntroduction&ReadingPre_reading课件外研版必修3201801281173.ppt
2017_2018学年高中英语Module4SandstormsinAsiaSectionⅡIntroduction&ReadingLanguagePoints教学案外研版必修320180128169.doc
2017_2018学年高中英语Module4SandstormsinAsiaSectionⅡIntroduction&ReadingLanguagePoints课件外研版必修3201801281174.ppt
2017_2018学年高中英语Module4SandstormsinAsiaSectionⅢGrammar动词不定式和but+不定式教学案外研版必修320180128170.doc
2017_2018学年高中英语Module4SandstormsinAsiaSectionⅢGrammar动词不定式和but＋不定式课件外研版必修3201801281175.ppt
2017_2018学年高中英语Module4SandstormsinAsiaSectionⅣOtherPartsoftheModule教学案外研版必修320180128171.doc
2017_2018学年高中英语Module4SandstormsinAsiaSectionⅣOtherPartsoftheModule课件外研版必修3201801281176.ppt
2017_2018学年高中英语Module4SandstormsinAsiaSectionⅤWriting_环保类作文教学案外研版必修320180128172.doc
2017_2018学年高中英语Module4SandstormsinAsiaSectionⅤWriting_环保类作文课件外研版必修3201801281177.ppt
2017_2018学年高中英语Module4SandstormsinAsia单元加餐练一_二外研版必修320180128173.doc
2017_2018学年高中英语Module4SandstormsinAsia课时跟踪练二Introduction&ReadingLanguagePoints外研版必修320180128174.doc
2017_2018学年高中英语Module4SandstormsinAsia课时跟踪练三OtherPartsoftheModule外研版必修320180128175.doc
2017_2018学年高中英语Module4SandstormsinAsia课时跟踪练一Introduction&ReadingPrereading外研版必修320180128176.doc
Module 4 Sandstorms in Asia Section Ⅰ Introduction & Reading Pre-reading
In April 2012, a dust storm that originated in China and Mongolia took a six-day 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_Ⅰ Introduction & Reading — Pre-reading
[原文呈现]
Sandstorms① in Asia
Sandstorms have been a major② disaster for many Asian countries for centuries. Scientists have tried many ways to solve this problem and in China, a mass③campaign④ has 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 sandstorms⑧ are Central Asia, North America, Central Africa and Australia. Ren Jianbo, from Inner Mongolia described a terrible sandstorm he experienced⑨ as a child in the desert. “To have been caught in a sandstorm⑩ was a terrible experience，” he said.“There was nothing to be done⑪. It was the most frightening and the most dangerous situation I’ve ever been in⑫. 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
Module 4 Sandstorms in Asia Section Ⅱ Introduction & Reading Language Points
一、这样记单词
记得准•写得对 记得快•记得多
Ⅰ.基础词汇
1.inlandadj. 内地的；内陆的
2.massadj. 大量的；大规模的
3.campaignn. 战役；活动
4.forecastvt. 预报；预告
5.processn. 进程；过程
6.citizenn. 公民；市民
7.maskn. 面罩
Ⅱ.拓展词汇
1.frighteningadj.吓人的；可怕的→frightened adj.害怕的→frighten vt.使害怕→fright n．害怕
2.desertificationn．(土地的)沙漠化→desert n．沙漠
3.dustn．沙尘；灰尘→dusty adj.满是灰尘的
4.strengthn．力量；力气→strengthen vt.加强→strong adj.强壮的
5.cyclevi.骑自行车→bicycle n．自行车→cyclist n．骑自行车的人 1. sandstorm n．沙尘暴
[联想] 各种自然灾害
①tornado 龙卷风
②hurricane 飓风
③earthquake 地震
④lightning 闪电
⑤volcanic eruption 火山喷发
2. forecast vt.预报；预告
[记法] fore- (前面，预先) ＋ cast (投；发射) →预报
[联想] fore-开头单词小结
①foretell v. 预言
②foresee v. 预见
③forehead n. 前额
3. frightening adj.吓人的；可怕的
[同义] “可怕的”形容词荟萃
①scary 恐怖的
②terrible 可怕的
③horrible 恐怖的
④terrifying 令人惊恐的
二、这样记短语
记牢固定短语 多积常用词块
1.be/get_caught_in 突然遭遇(风暴等)
2.cut_down 砍倒
3.dig_up 挖出
4.wap_to 醒来面对；意识到；
认识到
5.prevent_sb._from_doing_sth. 阻止某人做某事
6.as_a_result_of/because_of 因为，由于
7.in_this_situation 在这种情况下
8.one_after_another 一个接一个地 1.a major disaster 一个主要灾难
2.solve this problem 解决这个问题
3.a mass campaign 一场大规模的运动
4.strong enough 足够强
5.as a child 作为一个孩子，小时候
6.the most frightening and the most dangerous situation
最可怕、最危险的境况
7.because of climate changes 因为气候变化
8.to prevent it coming nearer 为阻止它逼近
三、这样记句式
先背熟 再悟通 后仿用
1.They are often so thick that you cannot see the sun, and the wind is sometimes strong enough to move sand dunes.
沙尘暴常常很浓密，以至于遮住了太阳，有时风力大的足以移动沙丘。 “so ＋ adj./ adv. ＋ that ...”表示“如此……以至于……”。 My clock rings so_loudly_that it will certainly wap.
我的闹钟如此响，以至于它肯定会叫醒我的。
Module 4 Sandstorms in Asia Section Ⅲ Grammar 动词不定式和but＋不定式
语法图解
探究发现
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 thicst 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.
[我的发现]
(1)①～⑦句中，不定式在句中分别充当宾语、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，如果but之前有行为动词do的各种形式，则介词后的不定式不带to，否则带to。
一、动词不定式
(一)动词不定式的时态和语态
语态
时态 主动 被动
一般式 to do to be done
进行式 to be doing /
完成式 to have done to have been done
1．不定式的一般式：表示不定式的动作与谓语动词同时(几乎同时)发生或在谓语动词之后发生。
I hope to see you next week.
我希望下周能见到你。
I’d like to be told what’s going on.
我希望被告知正在发生什么。
2．不定式的进行式：表示不定式的动作正在进行且与谓语动词同时发生。
I happened to be watching TV when she called.
她打电话来时，我恰巧正在看电视。
资源评论
共有 0位用户发表了评论 查看完整内容我要评价此资源