高中英语外研版必修3Module 4 Sandstorms in Asia

(共48张PPT)
Word Study
Module 4
1.
It was the most _________experience of my life.
The children's shouts __________off the birds.
_________children were calling for their mothers.
frightened
frighten
frightening adj.
总结：
frighten vt.使恐惧，使害怕
frightened adj.感到害怕，恐惧的
frightening adj. 吓人的，令人害怕的
2. mass adj.大量的，大规模的 n. 大量，块，众多
There _____ masses of ice on the river.
A. is B. are
A
A mass of snow and rock break away and fall on the climber。
一堆积雪和岩石突然崩落到登山者的身上
翻译：
a mass of /masses of 大量的，许多的
翻译练习：
在地下发现了大量财宝。
/大量的游客来到这个城市。
今天城镇有许多人。/天空中很多乌云。/大量的证据被发现。
A mass of treasure was found underground.
A mass of tourists came into the city
There are masses of people in town today.
There’re masses of dark clouds in the sky.
Masses of evidence was discovered.
a mass of / masses of 大量的，许多的+可数名词复数/不可数名词（谓语动词由名词决定）
I will tell you, sooner or later, all the complicated process. 我早晚要将整个复杂过程告诉你。
in the process of 在…过程中
physical process物理过程
结论：
3. process n.过程，进程；步骤，程序
4. forecast vt.预报，预告(--forecast--forecast)
n.预报，预测 ___________________天气预报
______________________________谁能预言将来
___________________________________________
老师预测他有二十名学生能通过考试。
weather forecast
Who can forecast the future
The teacher forecast that twenty of his students would pass the examination.
5. strength n.力量，力气
Union is strength. _________________________
团结就是力量。
vt. strengthen 加强，增强，巩固
6. mask n.面具
____________ a mask戴面具
wear
[谚]团结就是力量。
7. environment n. adj. environmental
环境;四周状况----孩子们需要愉快的家庭环境。
________________________________________
自然环境;生态环境----It is highly important to protect the environment.
Children need a happy home environment.
她不习惯于这个新环境。
She is not used to the new environment.
look after the environment保护环境
environmental pollution 环境污染
environmentally friendly 环保
8. garbage n.垃圾---不可数名词
garbage collection垃圾收集garbage can垃圾箱
9. melt vi.融化；熔化，溶解
melt --- melted-- melted
10. 污染 n.___________ v.___________
adj.____________
pollution
pollute
polluted
11. recycle vt.重新利用，再循环
这些瓶子是可以被再利用的。
These bottles can be recycled.
recycle waste paper反复使用废纸
adj. recycled ---- recycled materials可回收材料
12. concerned adj.关心的，担心的
He was deeply concerned at the news.
听到这个消息时，他甚为担忧。
据我所知as far as I know
就我而言/对我而言
___ ___ ___ ___ ___ ________, he can do whatever he likes.
As far as I am concerned
翻译：It is reported that the pop singer is concerned with selling drugs.
We are all concerned about the pollution of the environment here.
总结：
be concerned with/ in (卷入) sth.牵涉，与…有关
be concerned about/for/over sth.
be concerned +that 从句
担心，关心某事
练习：父母自然关心他们儿女的安全。
我担心他可能已经迷路了。
他的新书与非洲有关。
Parents are naturally concerned about their children’s safety.
I am concerned that he may have got lost.
His new book is concerned with Africa.
concern n. 关心，担忧(U.N); 有利害关系的事(C.N) ; vt.涉及，使担忧
There is a growing concern about the effects of pollution on health.翻译：
对于污染影响健康的关注越来越强烈了。
这个男孩在学校糟糕的表现使他的父母很担心。
有些人不太关心我们的环境。(用词组show/express concern about/ for对…表示关心、担心)
The boy’s poor performance at school concerns his parents.
Some people don’t show much concern for our environment.
concerning prep.关于
13. evidence n. 证据（不可数）
14. major adj.主要的，多数的，主修的
n.主修科目 v.主修(major in +科目)
Her major is French.
Are you majoring in English Literature
plain vi.抱怨，发牢骚
I have nothing to complain about.
I complained to the police about my neighbour’s dog.
总结：哭诉，抱怨----
向某人控诉，抱怨什么--
complain about/of
complain to sb. of/about sth.
complain to sb.+that 从句
游客们抱怨这个旅馆很差的服务。
她跟我抱怨她妈妈对她不好。
他总在抱怨（注意时态）
Tourists complained about the poor serve in the hotel.
She complained to me that her mother didn’t treat her well.
He is always complaining.
16. in a nutshell 简言之，概括的说
17.absolutely adv.绝对地，完全地
It is absolutely impossible.
---Could we leave a little earlier
---_______
Likely not B. Eventually not
C. Absolutely not D. Naturally not
C
18. protection n.保护
give/offer/provide protection (against)
提供保护(抵制，避免…)
Helen’s thin coat gave little protection against the cold.
under the protection of 在…保护下
adj. protected受保护的
v. protect--protect … against/from
Module 4
Sandstorms in Asia
Mission
Impossible
Read “Sandstorms in Asia”, and think about the following questions:
1. What’s mainly talked about in the text
2. What are sandstorm
3. How did Ren Jianbo find the sandstorm
4. What does desertification mean
5. How do sandstorms affect Beijing
6. How to prevent the sandstorms in your opinion
How to prevent the sandstorms in your opinion
planting trees to create an
anti-storm forest barrier.
control the development of animal husbandry(畜牧业);
找出文中含有动词不定式结构的句子，并进行分类：
动词不定式
做主语
做状语
做宾语
做定语
做主语(3个)：
1. To have been caught in a sandstorm was a terrible experience.
2. To be cycling in a sandstorm is frightening.
3. It is difficult to breathe and the dust makes me ill.
做宾语(5个)
1.Sandstorms in China appear to have increased in recent years.
2.Traffic moves very slowly because thick dust makes it difficult to see.
3. weather experts advise people not to go out
4.If you want to go out, you’d wear a mask.
5. …and plans to continue planting for the next five years
作状语（3个）
1. Scientists have tried many ways to solve this problem and in China, a mass campaign has been started to help solve it.
2. The wind is sometimes strong enough to move sand dunes.
3.To prevent it coming nearer, the government is planting trees.
做定语（1个）
1. There was nothing to be done.
Infinitive 不定式
动词不定式和其后面的名词等构成不定式短语，在句子中可以用作主语、表语、宾语、补足语、定语、状语等。
一. 作主语
动词不定式（短语）作主语时，为了避免句子的头重脚轻，可以用“it”作形式主语，而把真正的主语－－动词不定式（短语）放在句子的后部。
It is hard to be a doctor.
It’s important to plant trees in spring.
二. 若作宾语的动词不定式（短语）很长，可用it作形式宾语。 I find it interesting to learn English with you. 我觉得和你一起学英语很有趣。 He felt it hard to catch up with others. 他觉得赶上别人很困难。
find, consider, think, feel, make +it +adj.+ to do
三. 动词不定式作定语 动词不定式作定语常用来修饰名词或不定代词，放于所修饰的词后，为后置定语。例： Who was the first one to arrive 谁第一个到的？ She has no paper to write on 她没有纸写字？
The best way to learn English is to use it. 学英语最好的方法是使用它。 When is the best time to plant vegetables 什么时候是种植蔬菜的最好时间？
*动词不定式（短语）作定语修饰名词时，与其所修饰的词具有一种动宾关系，如果不定式中的动词为不及物动词时，其后应加上一个含义上所需要的介词。例： I have no chair to sit on. 我没有椅子坐。 He has no house to live in. 他没有房子住。
四.不定式和疑问词连用，可以作句子的主语、宾语、表语等。例： The problem is where to get a computer. （表语） I really don’t know which one to choose. （宾） 我真的不知道选哪一个。 When and where to have the party is not known. （主语） 何时何地举行联欢还不知道。
五. 不定式动词在介词but, except, besides后面时，如这些介词前有实义动词do的各种形式，则后接不带to的不定式，否则带to。如：
I have no choice but to accept the fact.
除了接受这个事实我别无选择。
What do you like to do besides swim
除了游泳你还喜欢做什么？
一、当but前有作实义动词的do时，其后的不定式通常不带to。例如：
I’ll do anything for you but set you free.
我可以替你做任何事，但就不能把你释放。
There was nothing to do but wait till he came back.
没什么事可干了，只好等他回来。
二、用于cannot but，cannot choose but，cannot help but(不得不，只好做)之类短语后，其不定式通常不带to。例如：
When a close friend dies, you cannot but feel sad.
当好朋友去世时，你怎能不悲伤。
I couldn’t choose but speak the truth.
我不能不说真话。
When it rains, you cannot help but get your shoes wet.
下雨天，你的鞋子岂能不沾湿。
三、除上述情况外，用于but之后的不定式通常都要带to。例如：
They had no other choice but to obey.
他们别无选择，只能服从。
He had nothing to say but to follow the teacher’s instructions.
六.不定式的时态
不定式常用的时态有一般时、完成时、进行时和完成进行时四种，常用的为前三种。
1. 一般时
动词不定式的一般式表示不定式的动作或状态与谓语动词所表示的动作同时发生或在之后发生。如：
I plan to attend the meeting.
我计划参加这次会议。
2. 完成时
不定式的完成式表示不定式的动作发生在谓语动词表示的动作之前。如：
I am sorry to have kept you waiting.
很抱歉让你久等了。
3. 进行时
不定式的进行式表示不定式的动作与谓语动词所表示的动作同时发生。如：
They are said to be working hard.
据说他们工作得很努力。
4. 完成进行时
不定式的完成进行式表示不定式的动作在谓语动词之前已经发生，并且一直进行着。如：
He is said to have been working in that factory for twelve years.
据说他已在那家工厂工作12年了。
1.好几个世纪 2. 世界上有沙尘暴的主要四个地区是….3.任建波，来自于内蒙，描述了当他是孩子时经历的一场可怕的沙尘暴。4. 这是我曾经所处的最吓人和最危险的情况。5. 由于6.这是一个由于天气变化和由于人们砍伐树木、挖草所造成土地变成沙漠时才发生的过程。7.醒来时注意到，开始觉察到 8. 北京西250公里远 9. 建议某人做某事 10.P33 一个接一个 11. 在空中 12. 在一周后的时间 13.扫除，消灭，摧毁
1. for centuries 2. The four main places in the world where there are sandstorms are…. 3. Ren Jianbo, from Inner Mongolia describea a terrible sandstorms he experienced as a child in the desert. 4. It was the most frightening and most dangerous situation I’ve ever been in. 5. as a result of 6. This is a process that happens when land becomes desert because of climate changes and because people cut down trees and dig up grass. 7. wake up to 8. 250 kilometers away to the west of Beijing 9. advise sb. to do 10. one after another 11. in the air 12. in a week’s time 13. sweep … away
1. cut down 砍到，cut up 切碎，
2. prevent/ stop sb. (from) doing
keep sb. from doing 阻止某人做某事
3. be caught in 被困在…,遭遇…
be caught doing 被抓住在做某事
4. appear vi.
1.出现;显露
Gradually a smile appeared on her face.
她脸上渐渐地露出笑容。
2.似乎,看来好像
It appears that they are right.
看来他们是对的。
He appeared to be talking to himself.
他似乎在自言自语。
He is only forty, but appears to be quite old.
The girl appears to have known it.
Sandstorms in China appear to have increased in recent years.
总结：
It appears that ….
appear to +动词原形
他只有四十岁，但看起来好像很老。
女孩看起来好像已经知道这件事了。
最近几年中国的沙尘暴好像已经增加了。