Lesson 21 Mad or not ？

阅读理解 1. Why do people think the writer is mad? Because the writer has been offered much money to go away, but he is determined to stay here. 2. What must have been the reason why so many people left their homes? They must have been driven away from their homes by the noise.

单词详解 1. mad adj. 发疯的 词组： go mad/ be mad 发疯，失去理智 同义短语： go bananas drive sb. mad 把某人逼疯 be mad about star 为明星而疯狂的 趣味引申： madhouse/funny farm 疯人院

2. reason n. 理由 结构： reason for sth./ to do sth./ why+ 句子 翻译：那就是为什么我会迟到的原因。 That’s the reason for my lateness/ why I was late. 派生： reasonable adj. 合理的

3. sum n. 量 词组： a large sum of money 一大笔钱 v. 概括，总结 词组： to sum up 总而言之 4. determined adj. 坚定的，下定决心的 结构： be determined to do sth. 下定决心做某事 同义词组： decide to do sth./ make up one’s mind to do sth./ make a decision to do sth. a man of determination 一个有决断力的人

课文解析 1. Aeroplanes are slowly driving me mad. 单词： slowly 逐渐地 翻译：他正在逐渐制定一个合理的计划。 He is slowly making a reasonable plan. drive 含义多样： Aeroplanes are slowly driving me mad. 逼迫 He drives his car very badly. 驾驶 The farmer drove the cattle into the field. 驱使 During the war, many people were driven out of their homes. 赶出

2. I live near an airport and passing planes can be heard night and day. 词组： passing planes “ 经过的 ” 、 “ 过往的 ” 现在分词， 作定语 着火的森林 the burning forest 熟睡的婴儿 a sleeping baby 词组： night and day 日日夜夜，夜以继日 语法：被动语态与情态动词连用（详见语法重点）

3. The airport was built years ago, but for some reason it could not be used then. 单词： years 前面不加确定的数词时，一般表示 “ 许多 年 ” ，如：数周前 weeks ago 词组： some 某个，某种 for some reason 由于某种原因 e.g 某人在门外等你。 Some person is waiting outside the door.

4. Last year, however, it came into use. 单词： however 然而（用于句首、句中，用逗号隔开） 然后，这并未发生。 However, this does not happen./ This, however, does not happen. 词组： come into use 启用、开始被使用，不用于被 动语态 翻译：这座桥上周被投入使用。 The bridge came into use last week.

5. Over a hundred people must have been driven away from their homes by the noise. 语法： must have been done 情态动词与被动语态连 用 复习： must be 表示对现在的肯定推测 must have done 表示对过去的肯定推测 翻译：这支钢笔肯定是约翰的。 This pen must be John's. 他一定来过这里。 He must have been here. 辨析： home “ 家 ” 、 “ 家庭 ” ，带有感情色彩； house “ 房屋 ” 、 “ 住宅 ” ，无感情色彩 选词填空： He has a large house but doesn’t have a sweet home. 做个等式： house + family=home

6. I am one of the few people left. 结构： one of + 名词复数 …… 之一（表示特指 的一群人 / 一些东西中的一个） 语法： left “ 被留下来的 ” 、 “ 剩下的 ” ，相当于定 语从句 who are left 翻译：我是车上唯一留下的乘客. I am the only passenger left on the bus. 这是唯一被报道的新闻。 This is the only news reported.

7. Sometimes I think this house will be knocked down by a passing plane. 词组： knock down 撞倒 = knock over 复习 knock 其他短语搭配： knock at 敲 ; knock off 打折； knock out 打晕 (ko)

8. I have been offered a large sum of money to go away, but I’m determined to stay here. Everybody says I must be mad and they are probably right. 单词： offer v. 提供 同义词： give/provide 语法：双宾语的被动语态 I have been offered a large sum of money. =A large sum of money has been offered to me. =I have been offered a large sum of money.

复习情态动词 must 的用法： must be 表肯定的推测 她肯定 40 了，有那么大的女儿。 She must be 40, for she has a daughter at that age. 总结： 表示对现在的肯定猜 测 表示对过去的肯定猜测 must bemust have been

语法重点 被动语态复习及情态动词被动语态构成 请在本课文中找到所有实义动词的被动 语态形式并说出其对应时态： was built/will be knocked down/have been offered

关于 8 大时态的被动语态形式参见下表： 主动语态被动语态 一般现在时 do, doesam/is/are done 一般过去时 didwas/were done 现在完成时 have/has donehave/has been done 过去完成时 had donehad been done 一般将来时 will dowill be done 过去将来时 would dowould be done 现在进行时 am/is/are doingam/is/are being done 过去进行时 was/were doingwas/were being done

含有情态动词的被动语态 含有情态动词的主动句变成被动句时， 由 “ 情态动词＋ be ＋ done” 构成。 Ex 1 将下列主动句改为被动句 1. We can repair this watch in two days. This watch can be repaired in two days. 2. They should do it at once. It should be done at once.

EX1 用所给动词的适当时态和语态填空。 1.Children are not allowed (not allow) to play frightening games. 2.All the buildings have been turned (turn) into hospitals since last July. 3.The vegetables will be planted (plant) in the fields next week.

4. The password of your box should be memorized (memorize 记得 ). 5. Liquids can be turned (turn) into gases if their temperatures are made (make) hot enough. 6. The next morning they found that some trees had been blown (blow 吹 ) down during the night.

EX2 按要求改写句子。 1. The headmaster praised Ben for his honesty. （改为 被动语态） Ben was praised by the headmaster for his honesty. 2. The firemen are using long ladders for rescuing people in tall buildings. （改为被动语态） Long ladders are being used for rescuing people in tall building by the firemen.

3.Some old Chinese can understand Russian. （改为被 动语态） Russian can be understood by some old Chinese. 4. The Spring Festival is welcomed by the Chinese all over the world. ( 改为主动语态 ) The Chinese welcome the Spring Festival all over the world.