2020外研版八年级英语下册初二课件：Module 3 Unit3.ppt

1、Unit 3 Language in use,Module 3 Journey to space,Scientists have sent spaceship to Mars. The journey has taken several months.,Lead in,Astronauts have already been to the moon.,Lead in,No one has been to Mars yet, because Mars is very far away, much farther than the moon.,Lead in,Scientists have als

2、o discovered many other galaxies in the universe. They are very far away and their light has to travel for many years to reach us. So how large is the universe? It is impossible to imagine.,Lead in,Scientists have sent spaceship to the planet Mars to take photos. They have even sent spaceships to tr

3、avel outside the solar system.,Lead in,However, no spaceship has travelled far enough to reach other stars in our Galaxy.,Lead in,1. Ive just made a model spaceship. 2. Has it arrived yet? 3. Astronauts have already been to the moon. 4. We have not found life on any other planets yet.,Language pract

4、ice,Spaceship on Mars! Astronauts have (1) _ been to the moon but they have not been to any other planets. However, a spaceship (2) _ arrived on Mars and it has (3) _ sent back photos of the red planet. Is there life on Mars? We do not know (4) _.,already,just,already,yet,1 Complete the news with al

5、ready, just and yet.,Language practice,在现在完成时的句子中，already(已经)、just(刚刚)常用于肯定句，放在have和has的后面。yet(还、尚、仍然)常用于否定句和疑问句，（放在have和has的后面也可放在句末）。,Grammar,have/has been to与have/has gone to的区别: have/has been to表示某人“去过某地，现在已经回来了”。 have/has gone to表示某人“去某地了”，这个人已经不在这里了。,Grammar,The spaceship has gone to Mars. It

6、has gone there, but it has not come back yet. Astronauts have been to the moon. They went there and then they came back.,2 Look at these sentences.,Language practice,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.

7、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 Now choose the correct answer.,Language practice,4 Complete the sentences with the expressions in the box.,1. A spaceship _ to Mars

8、. It is coming back to the earth next year.,has gone,Language practice,2. Lots of astronauts _ to the space station. They found it very interesting. 3. Some astronauts _ to the moon twice. 4. Two British astronauts _ to the space station. They will come back in January.,have been,have been,have gone

9、,Language practice,现在完成时(2) 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，可分用just, already或yet加以强调或说明。例如： I have just heard the news. 我刚听到消息。,Grammar,Astronauts have already been to the moon. 宇航员已经去过月球了。 He has just started to explore other planets. 我们才刚刚开始探索其他行星。 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

10、，一般是置于have / has 之后。在否定句中则可用yet, 表示“还未”， 有“以后可以会”的含义。例如：,Grammar,The scientists have not heard from it yet. Man has not discovered any life in space yet. 另外，在使用现在完成时的时候，要注意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。,Grammar,而一般过去时则表示在过去某一具体时间发生的事情。例如： I have just been to London. I w

11、ent there last month.我刚去过伦敦，上个月去的。 I have already finished my homework. I finished it an hour ago. 我已经完成家庭作业了，一小时前完成的。,Grammar,在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: Where have you put my book? I cant find it. 你把我的书放哪儿去了？我找不到。,Grammar,B: I put it on your desk ye

12、sterday. 我昨天放你桌子上了。 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。再看下面的对话：,Grammar,A: Would you like to go and see the film with me tonight? 你今晚想和我去看电影吗？ B: Sorry, I have seen 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。,Grammar,Nicky: Ive just (1) _ (watch

13、) a great TV programme about space. Did you know that scientists have (2) _ (discover) water on Mars? Bill: Yes, I did. And scientists (3) _ (try) to find life on Mars now.,watched,discovered,are trying,5 Complete the conversation with the correct form of the verbs in brackets.,Language practice,Nic

14、ky: Yes, theyre looking for life but they (4) _ (not find) anything yet. Bill: There were some new photos of Mars in the newspaper today. (5) _ you _ (see) them yet? Nicky: Yes. Theyre amazing,havent find,Have seen,Language practice,6 Complete the email with the words in the box.,FROM: Liu Dan TO: L

15、i Fang SUBJECT: Ive found a great book.,Language practice,Dear Li Fang, Ive (1) _ finished reading a great book at school. I havent (2) _ anything as good as that for a long time! Its a story about the solar system. In the book, the writer imagines that astronauts have (3) _ to Mars. Ive (4) _ thoug

16、ht about that before and I think its very interesting.,just,read,been,never,Language practice,I havent (5) _ anyone famous in my life but I hope one day I can meet an astronaut. Ive (6) _ to a Chinese astronaut for more information about space and his experience of space travel. I hope he will write

17、 back. He hasnt (7) _. Maybe he is too busy. Im still waiting. Best wishes, Liu Dan,met,written,yet,Language practice,7 Listen and complete the notes. 1. The astronaut joined CNSA _ years ago. 2. He has flown in a spaceship _ times. 3. He felt _ when he was in the spaceship.,six,two,excited,Language

18、 practice,4. He has been to the space station _. 5. The earth was blue and very _ when he saw it from the space station. 6. He decided to be an astronaut because he has always been _ in space.,twice,beautiful,interested,Language practice,8 Complete the word map with the words and expressions in the

19、box.,Language practice,SPACE,space travel,solar system,astronaut,Mars,spaceship,space station,the earth,the moon,the sun,_,Now add more words about space to the word map and write five sentences.,Weve just read a story about a space station near the sun. Astronauts havent been to the sun, because it

20、s too hot.,Language practice,_ _ _,Spaceships are travelling in our solar system at the moment. I am interested in space and the stars and plants in our galaxy. I think scientists will send astronauts to Mars one day.,Language practice,9 Complete the passage with the correct form of the words in the

21、 box.,In July 1969, Neil Armstrong became the first (1) _ to walk on the (2) _. People all around the world watched their televisions,astronaut,moon,Language practice,and waited for the (3) _ to (4) _ the earth. We have now (5) _ a lot more about our solar system, and we have sent (6) _ to Mars, but

22、 no one has walked on that planet (7) _. But I believe one day someone will!,news,reach,discovered,spaceships,yet,Language practice,Language practice,11 Write captions for the photos and use the information you found in Activity 10 to write a description of each one. _ 12 Give your poster a title. Put it up for your classmates to see.,Homework,