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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.
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
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
The airport was built years ago, but for some reason it could not be used thenቤተ መጻሕፍቲ ባይዱ 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
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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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
go bananas （go+adj. 变得……)
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
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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
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
• 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
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
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.
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）
Everybody says I must be mad and they are probably right.