2019年学年外研版八年级英语下册课件：Module 3 Unit 3 共43张PPT语文

7 Listen and complete the notes. 1. The astronaut joined CNSA ___s_ix___ years ago. 2. He has flown in a spaceship __t_w_o___ times. 3. He felt __e_x_c_it_e_d__ when he was in the spaceship.
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。 B回答时只是说明当时放的位置，所以 用一般过去时。
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。
know (4) ___y_e_t ___.
have/has been to & have/has gone to
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。
2 Look at these sentences.
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。”
现在完成时的句子中，already (已经)、 just(刚刚)常用于肯定句，放在have\ has 的后面。 yet(还、尚、仍然)常用于否定句和疑问句, （放在have\ has的后面，也可放在句末）。
1 Complete the news with already, just and yet. Spaceship on Mars! Astronauts have (1) _a_l_r_e_a_d_y_ been to the moon but they have not been to any
Bill: There were some new photos of Mars in the newspaper today. (5) _H__a_v_e__ you __se_e_n__ (see) them yet?
Nicky: Yes. They’re amazing!
5 Role–play the conversation in Activity 4.
6 Complete the email with the words in the box.
been just met never read written yet
FROM: Liu Dan TO: Li Fang SUBJECT: I’ve found a great book.
Dear Li Fang, I’ve (1) __j_u_s_t___ finished reading a great book at school. I haven’t (2) __r_e_a_d___ 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 (3) __b_e_e_n__ to Mars. I’ve (4) __n_e_v_e_r__ thought about that before and I think it’s very interesting.
Bill: YesБайду номын сангаас I did. And scientists (3) _a_r_e__tr_y_i_n_g_ (try) to find life on Mars now.
Nicky: Yes, they’re looking for life but they (4) _h_a_v_e_n_’_t_f_o_u_n_d_ (not find) anything yet.
8 Complete the word map with the words and expressions in the box.
astronaut Mars spaceship space station the earth the moon the sun
Mars
solar system the sun
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.
例如： I have just been to London. I went 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. 我已经完成作业了，一小时前完成的。
Nicky: I’ve just (1) _w_a_t_c_h_e_d_ (watch) a great TV programme about space. Did you know that scientists have (2) _d_is_c_o_v_e_r_e_d_ (discover) water on Mars?
other planets. However, a spaceship (2)
__j_u_s_t__ arrived on Mars and it has (3) _a_lr_e_a_d_y_ sent back photos of the red planet. Is there life on Mars? We do not
3 Complete the sentences with the expressions in the box.
have / has been have / has gone
1. A spaceship ___h_a_s_g_o_n_e__ to Mars. It is coming back to the earth next year.
4. Two British astronauts __h_a_v_e_g_o_n_e_ to the space station. They will come back in January.
4 Complete the conversation with the
correct form of the verbs in brackets.
I have just heard the news. 我刚听到消息。
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，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： The scientists have not heard from it yet. 科学家还没有收到它发出的信息。 Man has not discovered any life in space yet. 人类尚未在太空中发现生命。
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。
4. He has been to the space station __t_w__ic_e___.
5. The earth was blue and very __b_e_a_u_t_if_u_l__ when he saw it from the space station.
6. He decided to be an astronaut because he has always been _i_n_t_er_e_s_t_ed__ in space.
spaceship
SPACE
space travel
the earth the moon
space station astronaut
Now add more words about space to the word map and write five sentences.
have / has been have / has gone
2. Lots of astronauts __h_a_v_e__b_e_e_n_ to the space station. They found it very interesting.
3. Some astronauts ___h_a_v_e_b_e_e_n__ to the moon twice.
I haven’t (5) __m__e_t __ anyone famous in my life but I hope one day I can meet an astronaut. I’ve (6) _w__r_it_te_n__ to a Chinese astronaut for more information about space and his experience of space travel. I hope he will write back. He hasn’t (7) __y_e_t___. Maybe he is too busy. I’m still waiting. Best wishes, Liu Dan
1. _I’_v_e__ju_s_t_m__a_d_e__ a model spaceship. 我刚刚做了个宇宙飞船模型。
2. Has it _a_r_r_i_v_e_d_y_e_t__? 它已经到达了吗？
3. Astronauts _h_a_v_e_a_l_r_e_a_d_y_b_e_e_n__t_o_ the moon. 宇航员已经去过月球了。
The spaceship has gone to Mars. It has gone there, but it has not come back yet. Astronauts have been to the moon. They went there and then they came back.
4. We have not found life on any other planets __y_e_t ___. 我们还没有在其他星球发现生命。
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：
Now 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.
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 can’t find it. 你把我的书放哪儿去了？我找不 到。
B: I put it on your desk yesterday. 我昨天放你桌子上了。