内容正文:
Module 3 Journey to space
PPTS设计工作室
Unit 3
Language in use
1
1. _________ of us has ever seen the film.
2. ___________ understand how the human body works, you need to have some knowledge of chemistry.
in order to, up to, communicate, billions of, none
用方框中所给单词或短语的适当形式填空。
None
Revision
In order to
3. The government is spending __________ dollars on the new project.
4. Parents sometimes find it difficult to _____________ with their teenage children.
5. —Shall we have red wine or white?
—It’s ________ you.
communicate
up to
billions of
in order to, up to, communicate, billions of, none
3
Report time
What do you know about our planet, the universe and the space travel?
Do you believe there are aliens(外星人)?
Please give a report.
4
1. ______________ a model spaceship.
我刚刚做了个宇宙飞船模型。
2. Has it ____________?
它已经到达了吗?
3. Astronauts ___________________ the moon.
宇航员已经去过月球了。
4. We _____________ life on any other planets _______.
我们还没有在其他星球发现生命。
I’ve just made
arrived yet
have already been to
yet
Language practice
have not found
当表示动作已经完成,并对现在有一定影响时,我们一般用现在完成时。同时,可分别用副词 just,already 或 yet 加以强调或说明。例如:
现在完成时(2)
We have just returned from America.
我们刚刚从美国回来。
The scientists have already discovered the truth.
科学家已经发现了真相。
He has just seen the movie.
他刚刚看了这个电影。
Grammar
可以看出,just用来表示“刚刚”, already用来表示“已经”,两者都用于肯定句中,一般是置于have / has之后,实义动词之前。在否定句或疑问句中则用yet,也是放在have/ has的之后,实义动词之前,也可放在句末。例如:
They haven’t made a decision yet.
他们还没有做出决定。
Has she set a date for her marriage(结婚) yet?
她定下结婚的日子了吗?
现在完成时与一般过去时的区别
现在完成时在表达经历时只表示该事件是在现在之前的某一个时间里发生的,重点在于已完成动作对现在的影响。
而一般过去时则表示在过去某一具体时间发生的事情,句中往往有明确的表示过去的时间状语。
例如:
We have just visited our grandparents. We visited them last weekend.
我们刚刚去看了爷爷奶奶,上个周末去的。
He has already read the novel. He read it three days ago.
他已经读了这本小说。他是三天前读的。
在句中没有明确的过去时间状语时,如何判断该用现在完成时还是该用过去时呢?判断的标准是看该行为是否对现在有影响,也就是说该句强调的是什么。
试看以下对话:
A: Have you found your glasses yet?
你找到眼镜了吗?
B: No. I put it on my desk yesterday, but I can’t fin