Module3 Sports.Unit3 课件（共19张PPT） 2024-2025学年外研版八年级下册

Module 3 Journey to space
Unit 3
Language in use
A: Have you… ?
B: Yes, …/ No, …
(using already, just, ever, yet, never)
Work in pairs
Presentation
I've just made a model spaceship.
We have not found life on any other planets yet.
Astronauts have already been to the moon.
Has it arrived yet?
1. To summarize and consolidate the use of present perfect tense.
2. Structure: to describe the space.
3.通过了解中国在太空探索领域取得的伟大成就, 增强民族自豪感, 通过太空知识的学习, 培养学生对天文知识的兴趣和对未知事物的探索精神。
【学习目标】
1.Complete the news with already, just and yet.
Spaceship on Mars
Astronauts have __________ been to the moon but they have not been to any other planets.However, a spaceship has __________ arrived on Mars and it has ________ sent back photos of the red planet. Is there life on Mars? We do not know ______.
already
already
just
yet
【教材回顾】
2.Choose the correct answer.
1.Astronauts have been/ gone to the moon and returned.
2.The spaceship has been/gone into space. It will travel for ten days.
3.The astronaut has been/gone to the space station. He will come back tomorrow.
4.The spaceship has been/gone to the space station.It brought back two astronauts.
3.Complete the sentences with the expressions.
have/has been have/has gone
1.A spaceship _____________ to Mars.It is coming back to earth next year.
2.Lots of astronauts ____________ to the space station. They found it very interesting.
3.Some astronauts ____________ to the moon.
4.A British astronaut ____________ to the space station. He will come back in January.
has gone
has gone
have been
have been
4.Complete the conversation.
Nicky:I’ve just _________(watch) a great TV programme about space. Do you know that scientists have __________(discover) water on Mars?
Bill: No! Really? That’s very interesting. ________ they _____(try) to find life on Mars?
watched
discovered
Have
tried
Nicky: Well,they’re looking for life but they ______________(not find) anything yet.
Bill: _________ you ________(see) the photos of Mars?
Nicky: No. What does it look like?
Bill: It’s red！
haven’t found
Have seen
5.Complete the passage with the correct form of the words in the box.
astronaut discover doubt moon news reach spaceship yet
In July 1969 Neil Armstrong became the first __________ to walk on the ________.People all around the world watched their televisions waiting for the ________ to ______ the earth. We have now ___________ a lot more about our solar system and we have sent ___________ to Mars, but no one has walked on that planet.Not ______ but I do not ________ someone will one day!
astronaut
moon
news
reach
discovered
spaceship
yet
doubt
Grammar
现在完成时用在什么地方呢？
当我们要表达“某人曾经做过某事”,
“某人已经做了某事”等意思时, 英语要用“现在完成时”来表达。
【探究· 导学】
现在完成时的结构：
has/have + done (动词过去分词)
肯定句
I have worked.
He/She has worked.
They have worked.
否定句
I have not worked.
He/She has not worked.
They have not worked.
Think about
要表达“刚刚做完某事” “已经做完某事”时，我们同样可以用现在完成时。例如:
I have just heard the news.
Astronauts have already been to the moon.可以看出，just 用来表示“刚刚”，already 用来表示“已经”，一般置于have/has之后，两者都用于肯定句，在否定句中则要用yet,表示“还（未）”。例如：
The scientists haven’t heard from it yet.
（2）have/has been to 后面可接次数，表示去过某地几次。
I’ve been to Beijing three times.
我去过北京三次。
They have been to that village several times.
他们已经去过那个村庄好几次了。
学与用
与现在完成时连用的几个副词：
肯定句:
疑问句和否定句:
yet 常置于句末
already, never, ever, just一般置于助动词have/has之后，过去分词之前。
【课堂小结】
Grammar
现在完成时的结构：
has/have + done (动词过去分词)
与现在完成时连用的几个副词：already, never, ever, just一般置于助动词have/has之后，过去分词之前。
要表达“刚刚做完某事” “已经做完某事”时，我们同样可以用现在完成时。例如:
I have just heard the news.
1.Complete the email with the words in the box.
been, just, met, never, read, written, yet
Dear Li Fang,
I’ve _________ finished reading a great book at school.I haven’t ___________ anything as good as that for a long time! It’s a story about the solar system.In the book, the writer imagines that astronauts have ________ to Mars. I’ve _________ read that before and I think it’s very interesting.
just
read
been
never
【训练· 评价】
I haven’t _________ anyone famous in my life but I hope one day I can meet an astronaut. I’ve ________ to a Chinese astronaut for more information about space and his experience of space travel. I hope he will write back. He hasn’t _______.Maybe he is too busy. I’m still waiting.
Best wishes,
Liu Dan
met
written
yet
A man cannot spin and reel at the same time.
一心不能二用。