课文内容：
If you park your car in the wrong place, atraffic policeman will soon find it. You will bevery lucky if he lets you go without a ticket.However, this does not always happen. Trafficpolice are sometimes very polite. During a holiday inSweden, I found this note on my car: Sir, wewelcome you to our city. This is a "No Parking" area.You will enjoy your stay here if you pay attention toour street signs. This note is only a reminder.' If you receive a request like this, you cannotfail to obey it!
本文语法：真实条件句
语法归纳：真实条件句谈论或询问十分可能发生或实现的事情。
真实条件句的形式：从句多用一般现在时，主句多用一般将来时。一般总结为：主将从现。
If I have enough money next month，I will present you a ring.
如果下个月我有足够的钱，我将送给你一枚戒指。
If it rains tomorrow, we will cancel the meeting.
如果明天下雨，我们将取消会议。
If someone interrupts the class, we will feel angry.
如果有人打断我们上课，我们会感到生气。
精讲笔记：
1.If you park your car in the wrong place, a traffic policeman will soon find it.
如果你把车停在了不合适的地方，交警很快就会发现。
语言点1 此句主句和条件状语从句可以互换位置。可变为：A traffic policeman will soon find your carif you park it in the wrong place.
语言点2 wrong placc不要翻译成“错误的地方”，应该译为“不合适的地方”，wrong place相当于unbefitting / improper place
语言点3 wrong的反义词是right。
翻译练习：他就是你要找的人。He is the right person whom you are looking for.
他就是你要找的人。—He is the right person whom you are looking for.
2.You will be very lucky if he lets you go without a ticket.
假如他不罚你的款就让你走了，算你走运。
语言点1 此句包含if引导的真实条件句，位置位于主句之后。 .
语言点2 very lucky = quite fortunate / providential 非常幸运的
语言点3 let sb. go让某人走：Let’s go !让我们走(此处’s非名词所有格，而是let us的综写。)
语言点4 without没有，实际上表示条件：Fish will die without water.鱼离开了水就会死。/1 will diewithout you.没有你我活不 了。/ Life will be meaningless without love.生活缺少爱将是无意义的。
语言点5 此句包含双重条件：if he lets you go, 一重条件;without a ticket, 二重条件。
总结if和without表条件的区别：
1)if+句子：I shall come if I am not busy.如果我不忙就会来的。
2)without +名词性词或短语：Baby will cry without milk.宝宝没有奶喝就会哭的。
3.However, this does not always happen.
然而，情况并不都是这样。
语言点 however意为“然而，但是”，经常可以和but互换，但要注意however是副词，常在后面加一个逗号，而but是连词，不需要加逗号。此句还可改为：But this does not always happen.
