名著采撷《警察与赞美诗》选段二
第一页.精彩选段
第二页.词汇采集
第三页.活学活用
If he could reach a table in the restaurant unsuspected success would be his.
只要他能走到餐桌边不引人生疑，那就是胜券在握了。
【解析】这句话是一个由if引导的条件状语从句，表示在某条件下，某事很可能发生。翻译成“如果......就......” “只要......就......”。
If you ask him,he will help you．
如果你请他帮忙，他会帮你的。
If you have finished the homework,you can go home．
如果你作业做完了就可以回家了。
另外，if从句还表示一种虚拟的条件或假设。从句多用一般过去时或过去完成时，表示对现在或过去的一种假设。
If I were you，I would invite him to the party．
如果我是你，我会邀请他参加聚会。
I would have arrived much earlier if I had not been caught in the traffic．
要不是交通堵塞，我本会来得早一些。
我们可以把if 条件句的时态搭配总结如下：
1．if从句用一般现在时，主句用一般将来时
If he runs he’ll get there in time.
如果他用跑的，他就会及时赶到那儿。
2．if从句用一般现在时，主句用may/might/can
If the fog gets thicker the plane may/might be diverted.
如果雾在大一些，飞机可能就会改在别的机场降落。
3．if从句用一般现在时，主句用must/should
If you want to lose weight you must/should eat less bread.
如果你想减肥，你必须少吃面包。
4．if从句用一般现在时，主句用一般现在时
If you heat ice it turns to water.
如果把冰加热，它就会化成水。
5．if从句用现在进行时，主句用一般将来时
If you are looking for Peter you’ll find him upstairs.
如果你是在找彼得，上楼就会找到他。
6．if从句用现在完成时，主句用一般将来时
If you have finished dinner I’ll ask the waiter for the bill.
如果你吃完了，我就叫服务生来算账。
【加强巩固】下面小编就给出几道选择题，童鞋们试着选一选，看你掌握了多少。(*^__^*) 嘻嘻……
1.If you _____ to the party, you’ll have a great time.
A. will go B. went C. go D. going
2. It will be a long time ____ Peter _____ his work.
A. since, has finished B. after, finishes C. when, will finish D. before, finishes.
3. What will father _____ us from Japan?
A. take B. bring C. carry D. make
4. Weifang is famous ______ kites.
A. for B. to C. on D. with
5． I ____ her the answer if she ____me.
A. can tell, will ask B. will tell, will ask C. would tell, ask D. will tell, asks
