外研版英语必修三第模块学案

five
Years.
Task Ⅲ T or F have tried many ways to deal with sandstorms. ( T ) becomes desert only because people cut down trees and dig up grass. ( F ) Chinese Central Weather Station can not forecast a sandstorm before it comes.( F ) desert is 250 kilometers away to the west of Beijing. So there is no need to take some measures.(F ) China is part of the sandstorm center in Central Asia. ( F )
brown-yellow dust. The storms sometimes last all day
Βιβλιοθήκη Baidu
and affect traffic.
Two persons’ ▲ Ren Jianbo descibed a sandstorm inInnerMogolia.
description
▲ Huang xiaomei told people about a sandstorm in 7.
★ 如果 so 引导的部分用于句首，句子要用部分倒装（助动词 + 主语 + 谓 语动词。
lovely is the boy that everyone likes him. 4.“To have been caught in a sandstorm was a terrible experience,”he said. 他说，遇上沙尘暴是一种可怕的经历。 To have been caught in a sandstorm 为动词不定式短语作主语，句子谓语用 单数。 be caught in 被困于... ，突然遭遇... 与之用法一样的短语还有，be trapped in ,be stuck in , 这些短语的宾语既 可以是自然灾害，也可以是交通阻塞（a heavy traffic） was nothing to be done. 你一点儿办法也没有。 注意与这个固定句型的区别，Ther was nothing to do.表示没事可做。 in China appear to have increase in recent years ---. 中国近几年来发生沙尘暴的次数似乎明显增加了。。。 appear① 似乎，好象(ⅰ一般不用进行时态 ⅱ强调表面给人的印象，但事实不 一定如此） girl appears to have known it. 常用句型：＊appear (to be )+ adj./n. appears happy at the news.
sandstorm
cut down
dig up
the inland region
the first sign
if yes
TaskⅡ: Do activity①② on page 31
TaskⅢ:finish activity ③④on page 33.
【课内探究】
TaskⅠ:skimming
Read the text quickly and answer the following questions.
B. A sandstorm can be forecast several months before it arrives.
C. Huang xiaomei frequently cycles in sandstorms.
occur in beijing mainly because of its dry climate.
Period 2 Language Points：
【学习目标】掌握 Language Points 中列出的知识点
【使用说明与学法指导】 自学要求：课前自主学习，预习知识点。 正课要求：课上前 15 分钟完成课内探究。
10 分钟讨论，10 分钟展示点评，解决疑难。 10 分钟疯狂背诵并当堂检查。
【课前预习】
17 分钟独立完成探究一，二。10 分钟小组讨论确定答案。 10 分钟展示点评。5 分钟进行背诵所学词汇和短语并当堂检测。
Period 1 Introduction & Reading
【课前预习】
TaskⅠ: Master the words and phrases below.
bury
frightening
此句型属于“特殊疑问词＋do you think ＋ 陈述句 ”这种句式常用于询问 对方或者第三者的想法或意见。这种句式的动词除了 think 之外，还有 believe,consider,expect,imagine,suppose,suggest 等。 ① advise sb. to do sth. 建议某人做某事 拓展 ▲ advise doing sth 建议做某事
changes
And because people cut down trees and dig up grass.
Sandstorms in Citizens wake up to a(n) 6. orange
sky and
Beijing
strong winds that cover the city in a thick,
sand
are they
dunes
Where do they In central asia,
America
, central
often occur
africa and australia.
Sandstorms inChina
The cause
Sandstorms begin in 4 desert
＊appear to do sth appears to know everything. ＊It appears that...egIt appears that there has been a mistakes. ②出现 eg. He didn’t appear until midnight. 7... because people cut down trees and dig up grass. ... 因为人们砍树挖草。 cut dowm 砍倒； 削减（数目。数量）；缩小（尺寸） must cut down expenses on clothes. 拓展 cut in 打断（谈话 ），插嘴 cut off 中断（通话），停止，切断（联 系，电源） cut out 裁剪，删除 cut up 切成碎片 dig up 掘地，掘出，发现 old man dug up some land to grow vegetables. wake up to an orange sky and strong winds that... 居民们醒来时，看 到昏黄的天空和狂风... 本句子是由 that 引导的定语从句，修饰 winds. wake up 醒来，叫醒； will wake you up when it is time to leave. wake up to 开始察觉 eg. You shoule wake up to the situation. storms sometimes continue all day and traffic moves very slowly because the thick dust makes it difficult to see. 沙尘暴有时能持续一整天，车辆开的慢，因为厚厚的尘埃降低了能见度。 makes it difficult to see 句中的 it 是形式宾语，后面的动词不定式 to do 是 真正的宾语。可以用于该结构的动词还有：find， feel, think, consider. found it diffcult to deal with this situation. prevent it coming nearer, the government is planting treees. 为阻止沙漠蔓延，政府正在实施植树计划。 prevent 阻止，防止发生 其名词是 prevention, 形容词是 preventive 常用的短语，阻止某人做某事 ：prevent sb. ( from ) doing sth.
areas
and appear to have increased in recent years as a
result of “desertification”.It is a process that
happens when land becomes desert because of 5. climate
Read the text carefully and fill in the blanks.
Sandstorms
What are they They are
dry
winds that carry sand.
How powerful They are strong enough to move 2.
re
必修 3 MODULE 4 Sandstorms in Asia 导学案
H
编写人: 【Learning Goal】Learn about some thing about sandstorms in Asia
【使用说明与学法指导】 自学要求:课前提前自主学习，阅读单词并完成习题。 正课要求:3 分钟教师展示自主学习练习题答案。
C. are not dangerous but frightening disappear within five years
of the following is true according to the text A
A. Ren Jianbo thought he would probably die from the sandstorm.
some times 几次 some time 一些时间 sometime 指不明确的时 间，可用于过去式、将来时。 ② so...that...如此......以至于... 相关句型: so + adj./adv. + that... so + adj. + a /an + 单数可数名词+ that... so + many /few + 复数名词 + that so + much / little + 不可数名词 + that such + a / an + adj.+ 单数可数名词+ that such + 复数名词/ 不可数名词 + that
be advised to do sth 被建议做某事 与 advise 一样用法的动词还有，allow, permit, forbid; advise 的名词是 advice, 是个不可数名词，常考的一个短语是，give sb. some advice on sth. ② in this situation 在这种情况下 have tried many ways to solve this problem and in China ,a mass campain has been started to help solve it. 科学家尝试过很多方法来解决这个问题， 在中国，也发动了群众运动来对付沙尘暴。 本句是有 and 连接的两个并列句。 ①mass ⅰadj. 大规模的，以大众为对象的； latest product is aimed at the mass market.他们的最新产品瞄准了大众市场。 ⅱn. 许多，常用的两个短语 a mass of ＋复数名词/不可数名词
Beijing
The measures ▲ A 8. mass
campain
has been
started in china .
▲The government has already planted over 9. 30
million
trees and plans to continue planting for the next 10.
1 Why is it hard for people to see in sandstorms
Because of the thick dust.
2 How far is the desert from beijing
Only 250 kilometers away.
Task Ⅱ:careful reading.
阅读课文并且从文中找出下列短语:
1.在这种情况下
2.解决这个问题
3 如此….以至于 5.由于 7 挖掘 9.建议某人做某事 11.阻止做某事
4.被困在… 6 砍倒 8 醒来 10 最好做某事
【课内探究】
do you think experts advise people to do in this situation ①在这种情况下，你认为专家建议人们做什么
Choose the best answers according to the text.
the text ,we can learn that sandstorms B
.
A. cause people to buy more masks B. are difficult to deal with
masses of ＋ 复数名词/不可数名词 ① campaign 运动，宣传活动；
are often so thick that you cannot see the sun ,and the wind is sometimes strong enough to move sand dunes. 沙尘暴夹带的沙尘含量常常很 大，以至于可以遮天蔽日，风力强大时可以搬动沙丘。 本句是由 and 连接的两个并列句，第一个分句中含有 so...that 引导的结果状 语从句，第二个分句中含有 adj.+enough to do 的句型。 ① sometimes adv. 有时，可用于句首，句中，或句末。注意区别：