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 |
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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 |
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However, this does not always happen.
however = but 然而
however | but |
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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 |
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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 |
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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 |
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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 |
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remind sb. to do sth. 提醒某人做某事 |
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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 |
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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 |
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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), |
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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 | ||
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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 |
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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 |
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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 |
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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 |
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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 rainYou never this exam if you don't work hard.(单选)
A、will,passB、are, passC、_, passD、was, passedIf he plays well, he into the team.(单选)
A、will getB、is getC、was gotD、was getIf he concerts, why doesn't he come with us?(单选)
A、enjoyB、enjoysC、is enjoyD、was enjoyedTraffic 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 hereThis note is only a reminder. It's .(单选)
A、nothingB、no oneC、nothing extraD、nothing moreYou will enjoy your stay. It will you.(单选)
A、amuseB、enjoyC、laugh atD、please