Unit4Globalwarming教案

Unit4 Global warming
Language points for reading 1 教案
-雷翊
Teaching contents,
Some important words and expressions
Teaching aims,
Knowledge aims，
To grasp some important words and expressions and learn some useful sentence patterns
Ability aims，
1. Get students to use some useful words and expressions correctly .
2. Enable students to make sentences after the useful sentence patterns Emotional aims，
1. stimulate students’ interest in learning English.
2. Develop students’ spirit of cooperation and teamwork
Teaching important points,
1. Master the important words and expressions.
2. learn some useful sentence patterns
Teaching difficult points,
1. How to grasp some useful words and expressions.
2. How to learn some useful sentence patterns.
Teaching methods,
1. task-based teaching and learning
2. cooperative learning
Teaching procedures,
Step1:Review some phrases in the reading part.
1.发生，产生
2. 赞成；订购
3.大量的
4. 倾向于；照顾
5.上升；增长6导致
7.反对8. 种类繁多的
9. 即使10. 增加；聚集
11. 继续12. 一瞥；扫视
Step2. Teaching important words and expressions.
1．come about = happen /take place / occur 发生
[课文原句]
常用句型：How did it come about that ...？“某事是怎么发生的？”
It came about that ...“……发生了”
How did it that he knew where we were?
他是怎么知道我们在什么地方的呢？
come into being 开始存在；形成
come across (偶然)遇见，碰到
come out 开花；出现；被出版
come up 发芽；走近；被提出
come up with 提出；赶上
come to 共计；谈到
用come 相关短语的适当形式填空
①When is her new novel ？
②The subject in conversation yesterday.
③How did this situation ？
2. subscribe to 同意；捐赠；订购
I unreservedly subscribe to your proposal. 我毫无保留地赞同你的建议。

The old man subscribed all his savings to a local primary school.
这位老人把他所有的积蓄都捐给了当地一所小学。

仔细观察下列句子，写出subscribe to 的含义
①At the meeting, all the members subscribed t o the plan .
②In order to improve his daughter’s English, he subscribed to English Weekly.
③He subscribes regularly to the Hope Project.
④To tell you the truth，I didn't what he said at the meeting.
A．subscribe to B．take to C．contribute to D．relate to
3．quantities of 大量的
[课文原句]
in quantity 大量地
a quantity of 后接名词时，谓语用单数形式
quantities of 后接名词作主语时，谓语用复数形式。

Large quantities of money have been sent to the earthquake victims.
有大笔的钱寄给了地震灾民。

①It is usually a lot cheaper if you buy the fruit .(quantity)
如果你大批量购买水果，价钱通常会便宜很多。

4．It means that more heat energy tends to be trapped in the atmosphere , causing the global temperature to go up．
这意味着更多的热量被困在大气层中，从而引起全球温度升高。

tend vi.趋向于vt.照顾；护理
①tend to do sth.常常会做某事；倾向于做某事
tend(to)sb＝attend (to) sb = see to sb 照顾；护理某人
②tendency n．倾向；偏好
have a tendency to do sth. 往往会做某事
①女人往往比男人长寿。

Women than men.(tend)
②医生和护士正护理受伤者。

Doctors and nurses the injured.(tend)
5．result in = lead to /cause 导致
[课文原句]
The accident resulted in three people being killed.
这一事故导致三人死亡。

result from因……而引起；因……而导致
as a result=as a consequence 结果；因此(作状语)
as a result of=as a consequence of 由于……；因为……
His carelessness results in the accident.
=The accident results from his carelessness.
他的粗心导致了这场事故。

①His sickness was caused by eating too much.
= His sickness resulted ______eating too much. (in / from)
②The earth is becoming warmer. , London would become a water city.
= global warming, London would become a water city.
③The rise in the sea level will global warming.
= Global warming will the rise in the sea level.
6．In fact，Hambley states，“More carbon dioxide is actually a positive thing. it will encourage a greater range of animals—all of which will make life for human beings better.”
range n．种类；范围v．变化
have a wide range of...有广泛的……
a great range/variety of各种……
range/vary from sth.to sth.＝range /vary between sth. and sth.处于某范围内(2010·湖北高考)This restaurant has become popular for its wide of foods that suit all tastes and pockets.
A．division B．area C．range D．circle
①这家旅馆提供一系列的设施和服务。

This hotel offers facilities and services.(range)
②这些孩子们的年龄在8岁到15岁之间。

The children's ages .(range)
7．keep on doing=continue doing=go on doing 继续做某事
When the teacher came in，they still kept on talking.
当老师进来的时候，他们仍在继续讲话。

Prices keep on increasing in our country.
我们国家的物价仍在上涨。

注意下列词组的区别：keep on doing sth.继续做某事keep doing sth.反复做某事keep sb.doing sth.使某人一直做某事keep sb.from doing sth.阻止某人做某事
①The teacher until the students understood.(explain)
老师反复解释直到学生听懂为止。

②, and you will succeed!(keep)
坚持，你一定会成功！
介、副词填空
①She struggled to keep her tears.
②Keep your hands my dress.
③Close the door to keep the dog ．
④The neighbors asked them to stop making noise，but they kept right ．
8.There is no doubt that the earth is becoming warmer and that it is human activity that has caused this global warming。

毫无疑问，地球是在变暖，而地球变暖正是人类活动导致的。

毫无疑问他将会成功。

There is no doubt that he will succeed.
=I have no doubt that he will succeed.
=I don’t doubt that he will succeed.
有一些怀疑他将会成功。

There is some doubt whether he will succeed.
=I have some doubt whether he will succeed.
=I doubt whether/if he will succeed.
完成句子
①他能否胜任工作还有疑问。

he is fit for the job.
②毫无疑问他明天会离开这里。

he will leave here tomorrow.
③我怀疑这未必有用。

it will make any difference.
④我从未怀疑他会来。

he will come.
Step3 Homework
1.Remember the important new words and expressions in this part.
2.Finish the exercises on page62-64 of the Exercise Book.。