资源简介

(共18张PPT)
选修2 Unit 4
lesson1
1. 用法
“Well, I've been having a bit of crisis, you know, lots of problems,” replied the man. “And I've been doing a lot of work. ”
the action started in the past and continue in the present
Past
Present
Future
the action started in the past and have just finished
but we are interested in the result
Past
Present
Future
He is visiting the doctor.
Present
现在完成进行时表示
动作从过去某一时间开始，一直持续到现在；
或者始于过去，现在刚刚终止，但注重的是结果。
(1) A private detective has been tailing (跟踪) him
for several weeks.
(2) Craig loves outdoor activities - he skis in
winter and has been fishing and hunting
since he was a child.
一位私人侦探几个星期以来一直在跟踪他。
Craig热爱户外活动，冬天他去滑雪，他从小就
开始钓鱼和打猎。
现在完成进行时常与表示一段时间的状语连用。
例如：all the time, this week, all night,
these few days, for…, since…等。
(1) I've been designing solar racing cars.
(2) I've designed five or six different cars.
我一直在设计太阳能赛车。
我已经设计五六辆小汽车了。
1. 在不同时间状语的情况下，现在完成进行时
的动作不一定已经完成，很可能持续下去，
而现在完成时一般表示动作已经完成。
即现在完成进行时强调动作的延续性，而
现在完成时强调动作的结果。
3. 现在完成进行时和现在完成时的区别
Read Story A and answer the four questions.
Story A
A famous art collector was walking through the city when he noticed a dirty cat lapping milk from a saucer in the doorway of a store. He did a double take.
He noticed that the saucer was an antique and very valuable, so he walked casually into the store and innocently offered to buy the cat for 20 dollars.
The store owner replied, “I’m sorry, but the cat isn’t for sale.”
The collector said, “Please, I need a hungry cat with a good appetite around the house to catch mice. I’ll pay you 200 dollars for that cat.”
The owner said “sold” and handed over the cat.
The collector continued, “Hey, for the 200 dollars I wonder if you could throw in that old saucer. The cat’s used to it and it’ll save me from having to get a dish.”
And the owner said, “Sorry my friend, but that’s my lucky saucer. So far this week I’ve sold 68 cats.”
Read for understanding
Read the layering of Story A and answer the following questions.
1. Which characters are in the story
2. Where are they
3. What happened to/between them
1. I had been walking around all morning before
I found her.
2. We had been trying to find the right road for
nearly an hour before we finally spotted (看见) it.
3. They had been watching the series for three months.
4. She had been asking for help but no one took
any notice.
1. 构成
过去完成进行时的构成：had been + v-ing
2. 用法
(1) I had been looking for the book for days before
I found it.
(2) We had been waiting for him for over an hour
when he finally arrived.
表示过去某时开始并持续到过去某时的动作。
这本书我找了好多天才找着的。
我们等了他一个多小时，他终于到了。
Past
Present
Future
We use the past perfect continuous tense to describe an ongoing action that started in the past and continued for some time in the past.
(1) He had been mentioning your name to me.
(2) We had only been driving for about fifteen
minutes when Jill asked me to stop the car.
他过去多次向我提到过你的名字。
我们只开了大约15分钟，吉尔就让我停车。
表示过去某个确定的时间点内反复进行的动作。
Story A
layering
Structure
Layering
Punchline
Who
Where
What happened
What’s so funny
Comedy is simply a funny way of being serious.
Meanings behind the humor.
Story A
____________________________________________________.
Clever people may be victims of their own cleverness .
Read for expressing
● *Saturn / s t n/ n. 土星
● *Leo / li / n. 狮子座
appetite n. 胃口，食欲
have a good/healthy appetite
have no appetite
婴儿胃口好
faithful
We must be honest and_______________(faith) to our friends.
Some hours later, Holmes woke up and asked his faithful friend.
faithful adj.忠诚的
识记：君要臣死，臣非（fai）死（th）不可
faithfully adv.忠诚地
faith n.信任，信心
have faith in 对……有信心
lose faith in 对……失去信心
● *deduce /d dju s/ vt. 推论，推断
弟弟（de）丢失（duce），通过推断找到他
deduction /d d k n/ n.

展开更多......

收起↑