凤凰职教第二册第三单元复习课教学案
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凤凰职教第二册第三单元复习课教学案
in London.
注:1)when还可作并列连词,其意义为“那时,这时”,相当于and at this/that time。下列句式:sb.was doing sth.when...某人正在干某事就在这时……
sb.was about to/ going to do sth.when...某人正打算干某事就在这时……
sb.body has just done somesth.when...某人刚干了某事就在这时……
2)when还表示原因“既然”。如:
It was foolish of you to take a taxi when you could easily walk here in five minutes.既然你可以步行五分钟就能到这儿,坐出租车来真是愚蠢。
3)while作为并列连词,意为“而,却”,表示对比。
He likes pop music,while I am fond of folk music.
4)如果主句表示的是短暂动作,而从句用延续性动词的进行时态表示在一段时间内正在进行的动作时,when,while
与as可互换使用。如:
When/While/As I was walking down the street,I came across an old friend of mine.我在街道上走的时候,见到了我的一个老朋友。
2.从属连词:as soon as,immediately,directly,the moment,the minute,no sooner...than...,
hardly/scarcely... when...,once
这些从属连词引导的从句都表示从句的动作一发生,主句的动作随即就发生,意为“一……就……”。从句中用一般时态代替将来时态。如:Once you remember it,you’ll never forget it.一旦你记住它,就永远不会忘记。
The moment I heard the voice,I knew father was coming.
我一听到声音,就知道是父亲来了。No sooner had we arrived at the station than the train left.
我们一到达车站,车就开了。
注:no sooner...than...;
hardly/scarcely...when...这一结构的时态搭配:no sooner与hardly/scarcely 引导的主句谓语动词应用过去完成时,而than与when的从句中谓语应用一般过去时。此外,当把no sooner和hardly/scarcely提到句首时,应用倒装语序。
我一到家,天就开始下雨了。
I had hardly got home when it began to rain.
→Hardly had I got home when it began to rain.
3.till,until (not...until/till...直到……才) 连词用法动词意义例句
till/until 主语和从句都用肯定式主句的动词为连续性动词一直到……为止I’ll stay here till/until the rain stops. not...till/until 主句用否定形式,从句用肯定形式主句的动词为非连续性动词直到……才He didn’t go home till/until he finished his homework.
如Please remember to turn off all the
lights before you leave the classroom.
离开教室前,请记得把所有的灯都关上。
二、地点状语从句
1.常用的引导词有where(在……地方),wherever(无论在什么地方)等。指具体地点时,从句可用于主句之前或之后,表示抽象条件时,从句须放在主句之前。如:
The university graduates are determined to go wherever they are needed most.
那些大学毕业生们决心去最需要他们的地方。
They are planting trees where there is plenty of water and sunlight.
他们在阳光雨水充分的地方植树。Where there is a will,there is a way.有志者事竟成。
三、条件状语从句
1.常用的引导词有if(如果,假如),unless (除非,要不……就不),as long as(只
要),so long as(只要),provided (that)(只要),suppose/supposing(假设),on condition (that)(如果)等。如:
I may not come to see you recently unless I can complete the project ahead of time.除非我能提前完成那个项目,否则我最近不会来看你了。
We can surely attain our goal as long as we are united as one.
只要我们团结一致,我们肯定能实现我们的目标。
What shall we do if we can not get the necessary data?
如果我们弄不到必要的数据,我们怎么办?
They promised to let us have a meeting in their office on condition(that)we could keep it clean.
如果我们能保持清洁,他们答应让我们在他们的办公室里开会。
四、原因状语从句
1.常用的引导词有because因为,as由