Lesson 16 A polite request彬彬有礼的要求 if条件状语从句 状语从句 主将从现
First listen and then answer the question: What was the polite request?
If you park your car in the wrong place, a traffic policeman will soon find it.
You will be very lucky if he lets you go without a ticket.
However, this does not always happen. Traffic police are sometimes very polite.
During a holiday in Sweden, I found this note on my car:
'sir, we welcome you to our city. This is a "No Parking" area. You will enjoy your stay here if you pay attention to our street signs. This note is only a reminder.'
If you receive a request like this, you cannot fail to obey it!
课文理解交警的客套 更新于:2024-01-11 11:21:55
If you park your car in the wrong place, a traffic policeman will soon find it. 主将从现
- One can never know what will happen tomorrow. 一个人永远不会知道明天将会发生什么事。
- If you make a journey around the world, you’ll see many beauty spots. 如果你进行一次环球旅行的话,你就会看到许多风景胜地。
in the wrong place 不合适的地方
| wrong adj. 不合适的 | right adj. 合适的 | 
|---|---|
| 
 | 
 | 
You will be very lucky if he lets you go without a ticket. 主将从现
let (sb.) go 放开,释放,使自由,让(某人)去
- The man won’t let go (of) my arm. 那人抓住我的胳膊不放。
- He is very angry now. He won’t let you go easily. 他现在很生气。他不会轻易放过你的。
| without + n. 如果没有… | within 在…里 | 
|---|---|
| 
 | 
 | 
However, this does not always happen.
however = but 然而
| however | but | 
|---|---|
| 常常放在句首或句子中都可以,however 转折语义比较弱 | 习惯放在两个句子之间;but 转折性语义比较强 | 
| On one issue, however, she was immovable.然而,就一点而言,她态度是坚决的。 | But his death was so needless.然而他的死却太没有必要了。 | 
Traffic police are sometimes very polite.
| the police n. 警察部门,警方 | police 警察(复数) | policeman\policewoman 单指一名警察 | 
|---|---|---|
| Ring the police if there is a burglary. 如果发生入户盗窃就给警方打电话。 | The police are questioning a foreign tourist. 警察们正在盘问一名外国游客。 | There is a traffic policeman over there. You can ask him the way to the station. | 
During a holiday in Sweden, I found this note on my car: 'sir, we welcome you to our city. This is a "No Parking" area.'
welcome sb. to + 地点 欢迎某人来某地
“No Parking”在句中作 area 的定语,由若干个词合成的词组型定语有:
- a never-to-be-forgotten day 一个永远也不能忘掉的日子
- a well-to-do family 一个富裕的家庭
You will enjoy your stay here if you pay attention to our street signs.
enjoy v. 享受
- I have enjoyed my stay here. 我已经在这儿很快乐了
- Enjoy your stay here. 祝你玩得开心
| Pay attention to 集中注意力于某事物 | care 关心, 在意 | Take care of = Look after 照顾, 照料 | 
|---|---|---|
| 
 | 
 | 
 | 
This note is only a reminder
| note n. 短笺,便条;笔记 | notice (眼睛上的)注意;警示牌;通知 | 
|---|---|
| Note that the prices are inclusive of VAT. 注意这些价格含增值税。 | They gave her two weeks' notice. 他们通知她两周后搬走。 | 
remind v. 提醒
| remind sb. of sth. 使某人想起某事 | 
 | 
|---|---|
| remind sb. to do sth. 提醒某人做某事 | 
 | 
| remember sb. to sb. 前者向后者表示问候 | Remember me to your mother. 代我向你母亲问好 | 
| remember to do sth. 记得要去做… | Remember to send the letter. | 
| remember doing sth. 记得已经做了 | I remembered sending the letter. | 
| remember v. 记起, 记得 | Do you remember? 你想起来了吗? | 
| remember sth. 想起某事 | Remember? 记得吗?(可以单独用) | 
If you receive a request like this, you cannot fail to obey it!
cannot fail to do 双否得正,不得不(双否=加强肯定)
- you cannot fail to obey it! 你不能不服从它!双层否定
语法知识条件句(Conditional sentences) 更新于:2024-01-11 11:22:49
状语从句 §
状语从句(Adverbial Clauses)是一种用来修饰主句的从句,以一个句子做状语,表达描述性信息。它提供了关于时间、地点、原因、条件、目的、方式等方面的描述信息,以增加句子的复杂性和详细性。
| 类型 | 引导词 | 示例 | 
|---|---|---|
| 时间状语从句 | when ; while ; since ; as ; before ; till ; until ; as soon as … | I will call you when I get home. | 
| 地点状语从句 | where | They went to the park where they used to play as children. | 
| 原因状语从句 | beacause ; since ; as ; for … | He didn't come to the party because he was feeling sick. | 
| 条件状语从句 | if;unless | If it rains tomorrow, we will stay at home.主将从现 | 
| 目的状语从句 | so that … ; in order that … | She took extra lessons so that she could improve her English. | 
| 方式状语从句 | like ; as ; as if… | He speaks as if he knows everything. 天上知道完,地下知一半 | 
| 结果状语从句 * | so/such … that … ; so that …(所以) | The one with the money got such a fright that he dropped the bag. | 
| 比较状语从句 | than ; as | Tomorrow he will be watching her anxiously as she swims the long distance to England. | 
| 让步状语从句 * | though ; although ; even though ; even if … | for even though it was still summer, it rained continually and it was often bitterly cold. | 
这些副词引导的从句可以在主句之前、之后或中间出现,具体位置取决于句子结构和所要表达的含义。
If 条件状语从句 (If + 从句,主句)
| If + 从句 如果A从句 | 主句 那么就B主句 | 
|---|---|
| If he is sleeping,从句:如果他在在睡觉, | don't wake him up. 主句:不要叫醒他 | 
| if you don't hurry(条件,你再不快点的情况下). | You will miss the train(主句,你将会错过火车), | 
| 
 | |
if 引导的条件从句指能够发生、可能发生或可能发生过的事件。如果认为将来的事件很可能会发生(真实条件句), 那么 if 从句中要用一般现在时(有时也用其他形式的现在时),主句中用 will(或 shall)加动词形式或其他形式的将来时。
条件句的主句中的 will 表示肯定如此或几乎可以肯定会如此。如果觉得其“肯定”程度达不到使用 will 的程度,或者如果想表达建议等其他意思,就可以用别的情态助动词来代替 will;条件句中的主句还可以用祈使语气等表示请求、建议等。
* 真实条件句/虚拟条件句
| 格式 | 真实条件句 | 虚拟条件句 | ||
|---|---|---|---|---|
| 形式 | 零条件句 | If +从句 (现在时),主句(现在时) | 二型条件句 | If + 从句 (过去时),主句 would/could/might + 动词原形 | 
| 说明 | 表达普遍真理或事实 | 表达与事实相反的情况或不太可能发生的情况 | ||
| 关键字 | always, usually, often, sometimes, if | if, wish, were, had | ||
| 例句 | If it rains, the ground gets wet. | If I had a million dollars, I would travel the world. | ||
| 形式 | 一般条件句 | If + 从句 (现在时),主句(将来时) | 三型条件句 | If + 从句 (过去完成时),主句 would/could/might + have + 过去分词 | 
| 说明 | 表达可能发生的情况 | 表达对过去事件的遗憾、虚拟的情况以及无法改变的事实 | ||
| 关键字 | when, unless | should, could, might | ||
| 例句 | If it rains tomorrow, I will stay at home. | If I had studied harder, I would have passed the exam. | ||
| 形式 | 混合条件句 | If + 从句 (过去完成时),主句 would/could/might + 动词原形 | ||
| 说明 | 表达对过去事件的影响在现在的结果。 | |||
| 关键字 | should, could, might | |||
| 例句 | If it hadn't rained, we would be having a picnic now. | |||
| 一般现在时 | 一般将来时 | 
|---|---|
| 
 | 
 | 
| we will stay at home. ✓ 描述将来 | If it rains tomorrow,假设将来 | 
英文里的特殊规则在真实条件句里,要假设将来,还是得需要使用 (从句)一般现在时 + (主句)一般将来时。
| 一般过去时 | 过去将来时 | 
|---|---|
| If tall chimneys were built above sea level § ,假设过去 | the tunnel would be well-ventilated.描述过去将来 | 
规律总结:If 假设过去使用过去时,假设现在使用现在时,假设将来也是使用的现在时,但主句要成立则全部为相应的将来时。
| 真实条件句 | IF从句 | 主句 | 使用率 | 
|---|---|---|---|
| 假设过去 | 过去的各种时态 | 过去将来时 | 5% | 
| 假设现在 | 现在的各种时态 | 一般将来时 | 5% | 
| 假设将来 | 一般现在时(替代将来) | 90% | 
误解“主将从现”,即遇到条件句主句为一般将来时,从句使用使用一般现在时只是大多数的情况,并不是绝对的情况。要根据上下文灵活使用。
- I shall see him, if he is here next week. 主将从现
- If he plays well, he will get into the school team.主将从现
- If they have time the day after tomorrow, they will fly to London to have a meeting with us.主将从现
- If you make a mistake, correct it. 祈使句
- If you like him, you may tell him. 情态动词
- If she enjoys concerts, why doesn't she come with us? 疑问句
顺序问题:If 引导的是条件从句,要实现的是主句,所以不管是If在句首还是句中,它总是引导的是从句。
- If you park your car in the wrong place, a traffic policeman will soon find it. 如果你把车停在错误的地方,交通警察不久将会找到它。
- A traffic policeman will soon find it , if you park your car in the wrong place. 【倒着翻译】
不规则动词的变化
| 原型 | 过去式 | 过去分词 | 现在分词 | 
|---|---|---|---|
| let | let | let | letting | 
练习题
- If it , I shall take an umbrella with me.(单选)A、is rainB、was rainC、rainsD、will rain
- You never this exam if you don't work hard.(单选)A、will,passB、are, passC、_, passD、was, passed
- If he plays well, he into the team.(单选)A、will getB、is getC、was gotD、was get
- If he concerts, why doesn't he come with us?(单选)A、enjoyB、enjoysC、is enjoyD、was enjoyed
- Traffic police are .(单选)A、occasionally very politeB、never very politeC、always very politeD、seldom very polite
- ‘No Parking’means .(单选)A、don't leave your car hereB、without parkingC、don't stopD、there's no room to park here
- This note is only a reminder. It's .(单选)A、nothingB、no oneC、nothing extraD、nothing more
- You will enjoy your stay. It will you.(单选)A、amuseB、enjoyC、laugh atD、please