外研版 (新标准)八年级下册Unit 3 Language in use精品ppt课件

这是一份外研版 (新标准)八年级下册Unit 3 Language in use精品ppt课件，共37页。PPT课件主要包含了一般过去时 VS，现在完成时，Exercises等内容，欢迎下载使用。
Astrnauts_____ already_____(be) t the mn.Already means smething happened befre nw r it is surprising r unexpected.
have been
I ______ just _______ (make) a mdelspaceship. just means smething happened just nw.
have made
We______________ (nt find)life n any ther planets yet.Yet means smething may happen in the future but isn’t dne nw.
haven’t fund
Yu sister has already gne t university. She is nly 14.Yu sister hasn’t gne t university yet, because she is nly 14.
What is the difference?
Already means the speaker is surprised.Yet means the speaker may g t university in the future but it desn’t happen nw.
在现在完成时的句子中，already (已经)just(刚刚)常用于肯定句,放have和has之后。yet(还、尚、仍然)用于否定句和疑问句,(放have和has之后,或是放在句末。)
Astrnauts have already been t the mn. 宇航员已经去过月球了。2. He has just started t explre ther planets. 我们才刚刚开始探索其他行星。
already用来表示“____________”, just用来表示“_____________”， 两者都用于________句中，一般是置于have / has之________。
1. The scientists have nt heard frm it yet. 科学家还没有收到它发出的信息。2. Man has nt discvered any life in space yet. 人类尚未在太空中发现生命。
在否定句中则可用________, 表示“还未”, 有“以后可以会”的含义。它常常位于_________ .
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。
一般过去时则表示在过去某一具体时间发生的事情。
I dn’t want t g with yu. I have already seen the film. I saw it last mnth.
I have just been t Lndn. I went there last mnth.我刚去过伦敦，上个月去的。I have already finished my hmewrk.I finished it an hur ag. 我已经完成家庭作业了，一小时前完成的。
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。A: Where have yu put my bk? I can’t find it.
如何判断该用现在完成时还是过去时？
B: I put it n yur desk yesterday. 该对话中，当A问对方把自己的书放在何处时，A 感兴趣的是现在的状态，因此用现在完成时。但是B回答时只是说明当时放的位置，所以用一般过去时。
A: Wuld yu like t g and see the film with me tnight? 你今晚想和我去看电影吗？B: Srry, I __________(see)it already. 不好意思，我已经看过那部电影了。对话中的现在完成时表示对结果的强调：“电影看过了，所以不想再看了。
Spaceship n Mars!Astrnauts have (1) ________ been t the mn but they have nt been t any ther planets. Hwever, a spaceship (2) _______ arrived n Mars and it has (3) _______ sent back phts f the red planet. Is there life n Mars? We d nt knw (4) ________.
Cmplete the news with already, just and yet.
The spaceship has gne t Mars. It has gne there, but it has nt cme back yet.Astrnauts have been t the mn. They went there and then they came back.
Read and learn
1. Astrnauts have been / gne t the mn and returned.2. The spaceship has been / gne int space. It will travel fr ten days.3. The astrnaut has been / gne t the space statin. He will cme back tmrrw.4. The spaceship has been / gne t the space statin. It brught back tw astrnauts.
Nw chse the crrect answer.
Cmplete the sentences with the expressins in the bx.
1. A spaceship __________ t Mars. It is cming back t the earth next year.
2. Lts f astrnauts ___________ t the space statin. They fund it very interesting.3. Sme astrnauts ____________ t the mn twice.4. Tw British astrnauts __________ t the space statin. They will cme back in January.
Nicky: I’ve just (1) ________ (watch) a great TV prgramme abut space. Did yu knw that scientists have (2) __________ (discver) water n Mars? Bill: Yes, I did. And scientists (3) __________ (try) t find life n Mars nw.
Cmplete the cnversatin with the crrect frm f the verbs in brackets.
Nicky: Yes, they’re lking fr life but they (4) ____________ (nt find) anything yet. Bill: There were sme new phts f Mars in the newspaper tday. (5) _______ yu ______ (see) them yet?Nicky: Yes. They’re amazing!
haven’t find
Have seen
Cmplete the email with the wrds in the bx.
FROM: Liu DanTO: Li FangSUBJECT: I’ve fund a great bk.
Dear Li Fang,I’ve (1) __________ finished reading a great bk at schl. I haven’t (2) ________ anything as gd as that fr a lng time! It’s a stry abut the slar system. In the bk, the writer imagines that astrnauts have (3) _______ t Mars. I’ve (4) ________ thught abut that befre and I think it’s very interesting.
I haven’t (5) _______ anyne famus in my life but I hpe ne day I can meet an astrnaut. I’ve (6) ________ t a Chinese astrnaut fr mre infrmatin abut space and his experience f space travel. I hpe he will write back. He hasn’t (7) _______. Maybe he is t busy. I’m still waiting.Best wishes, Liu Dan
Listen and cmplete the ntes.1. The astrnaut jined CNSA _________ years ag.2. He has flwn in a spaceship ________ times.3. He felt __________ when he was in the spaceship.
Listening practice
4. He has been t the space statin _________.5. The earth was blue and very ___________ when he saw it frm the space statin.6. He decided t be an astrnaut because he has always been __________ in space.
Cmplete the wrd map with the wrds and expressins in the bx.
space travel
slar system
space statin
____________________________________________________________________________________________________________________________________
Nw add mre wrds abut space t the wrd map and write five sentences.
We’ve just read a stry abut a space statin near the sun.Astrnauts haven’t been t the sun, because it’s t ht.
______________________________________________________________________________________________________________________________________________________________________________________________________
Spaceships are travelling in ur slar system at the mment.I am interested in space and the stars and planets in ur galaxy.I think scientists will send astrnauts t Mars ne day.
Cmplete the passage with the crrect frm f the wrds in the bx.
In July 1969, Neil Armstrng became the first (1) __________ t walk n the (2) ___________. Peple all arund the wrld watched their televisins
and waited fr the (3) ____________ t (4) ___________ the earth. We have nw (5) __________ a lt mre abut ur slar system, and we have sent (6) __________ t Mars, but n ne has walked n that planet (7) ________. But I believe ne day smene will!
Arund the wrld
Names f the days f the week
Many Eurpean languages use the names f the heavenly bdies fr the days f the week. Fr example, in English, Saturday is named after the planet Saturn, the sixth planet frm the sun. Sunday is the day f the sun, a traditinal day f rest. Mnday gets its name frm the mn and is the day f the mn.
Saturn  n.  土星
the heavenly bdies 天体
name sth after sth 用给取名be named after 以命名We name the bridge after this famus architect. The bridge _______________this famus architect.the day f the sun “耶稣复活日”Rest Day “安息日”legal hliday 合法的假期the day f the mn月亮女神是太阳神的妻子
is named after
True r False( )1. The days f the week cme frm the names f the planets and stars.( )2. We name Saturday after the planet Saturn. ( )3. Mnday gets its name frm the
Mdule task Making a pster abut space travel
1. Wrk in grups. 2. Chse a subject, fr example, the first mn landing r China’s manned space travels.3. Lk fr sme phts and infrmatin abut it.