新概念第二册第21课完整62395ppt课件

2.“为……而疯狂（着迷）”的表示方法：
①be mad about… I'm mad about English.
②be crazy about…
go mad 发疯，发狂 （强调转变）
go crazy
go insane （insane[in'sein] adj. 患精神病的，精神病患 者的，极愚蠢的）
使（某人）明白道理，使不做糊涂事 reasonable adj. 合情合理的，良好的，尚可的 at a reasonable price 以合理的价格 cause 导致某事发生的起因 the cause of the fire 大火的起因 eg. Smoking is one of the causes of lung
Everybody says I must be mad and they are probably right.
力学习英语。 be determined to do sth.下决心做某事 eg. I am determined to stay here. 我决定留下来。 表示下决心做某事，句型知多少？ make up one’s mind to do sth decide to do sth make a decision to do sth
go bananas （go+adj. 变得……)
Fra Baidu bibliotek
They are going bananas. =going crazy=going mad (变疯了)
I slowly go insane/go crazy/go mad/go bananas. 3.be mad at sb 生某人的气
4.drive sb mad 逼疯
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determined adj 坚定的，下决心的
determine vt. 决定，确定，影响 determine a date for a meeting 确定开会的日期 determine on sth 决定做某事 determine to do sth eg. We determined to study English hard. 我们决定要努
Lesson 21
Mad or not?
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New words
mad
[mæd]
adj.发疯
reason
['ri:zən]
n.原因
sum
[sʌm]
n.量
determined [di'tə:mind] adj.坚定的，下决心的
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mad adj 发疯的
1.be mad 发疯，发狂 （强调状态）
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Over a hundred people must have been driven away from their homes by the noise.
有100 多人肯定是被噪音逼得已经弃家远去
I am one of the few people left. Sometimes I think this house will be knocked down by a passing plane.
• an amount of (money)
• a (large)sum of (money)修饰货币 n. 大意，要旨
the sum of a speech 演讲大意 sum up (1) 合计
sum up all the expenses 把所有的花费加起来 (2) 总结，概括 eg. To sum up, he agrees with us. 总的来说，他同意我们的 观点。 in sum = in a word / in short / in brief 总之，要言之
those who speak English well. 我学习英语的理由是我羡精选慕ppt那些讲英语很好的人。
• 2) 理性，正常心智 eg. Only man has reason. 只有人类才有理性。
lose one’s reason 丧失理智 beyond all reasons 毫无道理 bring a person to reason
我是少数留下来的人中的一个。有时我觉得这房子 就要被一架飞过的飞机撞倒
I have been offered a large sum of money to go away, but I am determined to stay here.
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他们曾向我提供一大笔钱让我搬走，但我决定 留在这儿
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课文讲解
Mad or not?
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Aeroplanes are slowly driving me mad. I live near an airport and passing planes can be heard night and day.
飞机正在逐渐把我逼疯。我住在一个机场附近， 过往飞机日夜不绝于耳
cancer. 吸烟是肺癌的起因之一。
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sum n. 量
a large sum of:大量的，喜欢跟钱连用 一大笔钱
a large sum of money
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• 表“许多”的短语s：um n. 量
• a great many + pl.
• a great/large number of + pl.
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reason
1)n. 原因 for this reason 由于这个原因 For this reason, I was late.由于这个原因，我迟到了。 for some reason 由于某个原因
( some: 某一个，加可数名词单数) give a reason 提出理由 the root reason 根本原因 the reason is that… 理由是… the reason why…is that… …的理由是… eg. The reason why I study English is that I envy
The airport was built years ago, but for some reason it could not be used then. Last year, however, it came into use.
机场是许多年前建的，但由于某种原因当时未能启用。 然而去年 机场开始使用了