外研版八年级下册英语课件M3U1

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1.Some scientists have sent a spacecraft to Mars.
2. It has taken seve几ra个l months to go there.
32.020I/1t1/3h0 asn’t arrived yet.
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Words and expressions
践创造出前所未有的事物；
② find意为“发现，找到”，指对某种 事物的寻求，也指找到（丢失的事物）；
③ discover表示“偶然或经过努力发现 2客020/11观/30 存在的事物、真理或错误” 。 32
Edison invented the electric light bulb. 爱迪生发明了电灯泡。
floor? 当我们说be up to sb.时，表示“由……决 定”。例如：
Do you want to stay or go? It’s up to you.
你是要留下还是要走呢？你自己定。
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3. I haven’t started yet. 我还没开始做呢。
yet用于否定句和疑问句，意思是“还， 尚”。not…yet的意思是“还没，尚 未”，表示某事物在某一时间尚未发 生，但未来也许会发生。例如：
4. Has anyone been to Mars?
No one has been to Mars yet, because Mars is very far away, much farther than the moon.
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4. Complete the passage with the correct form of the words in the box.
p_l_a_n_e_t after a journey of several months
from the earth. Scientists have not (4)
_d_is_c_o_v_e_r_ed_ life on Mars (5) _y_e_t. And no
astronaut has ever been to Mars because
= We spent an hour sending this email. 我们花了一个小时发这个电子邮件。
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5. That’s why it’s on the news. 这就是它（宇宙飞船）上新闻的原因。
that is why…表示“这就是……的原 因”。 在都柏林人人都很友好，这就是我喜欢 这座城市的原因。
it is very far away.
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1. Has it arrived yet? 它已到达了吗？
arrive, get与reach都有“到达”之意。 ① arrive是不及物动词，其后必须加介 词才能跟宾语。arrive in后接表示洲、 国家、城市等大地方的名词。而arrive at后接表示车站、学校、邮局等较小地 方的名词。例如：
3. Has it arrived yet? 4. Astronauts have already been to the
moon.
Now 2020/11/30 listen again and repeat.
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Make lists of what we have and have not done in space travel.
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Some countries sent the persons into the space.
the Soviet Union (苏 联)
３
Russia (俄罗斯)
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solar system (太阳系)
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Earth planet
行星
☺ news about the trip to (1)_M__a_r_s__ ☺ journey of (2)__e_i_g_h_t_ months ☺has not sent back any (3)_m__e_ss_a_g_e_s
yet
☺hope to find (4)__l_if_e__on Mars
你收到她的信了吗？ Have you received her letter yet?
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just/already/yet用法小结
just “刚刚”；already “已经”，
一般置于have/has之后，两者都用于肯
定句；
yet 用在否定句和疑问句，表示“还未”。
have been to 表示“去过某地”，但现在
They have got a project on spaceships.
2. H school project?
He is not sure how to make the
model.
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3. What news has Tony heard? The spaceship to Mars has reached there.
earth/ə:θ/ moon/mu:n/ news/nju:z/ planet/′plænit/
reach/ri:tʃ/ yet/jet/
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n. 地球
n. 月亮；月球
n. 新闻；消息
n. 行星
v. 到达；抵达
adv. 还；尚（用于表示某
事在某一段时间尚未
发生，但未来也许会
发生）
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外研版八年级下册英语课 件M3U1
Have you ever wanted to travel?
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Have you ever been …?
all over China
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all over the worl3d
HHumavaen yboeuinegvse(人r b类e)enhatvoe…? been to the space.
Columbus discovered America but he did not explore the new continent． 哥伦布发现了美洲，可是他没有去探 索这个新大陆。
I’m looking for my pen but I can’t find
it. 我正在找我的钢笔，但找不到。
已
经回来了；
have gone to 表示“去了某地”，现在不
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4. The journey has taken several months. 行程历时几个月。
take后面加时间常表示“花费（多长时 间）”，常用句型为:
It takes sb. some time to do sth. 意为“某人花时间做某事”，常与句 型“sb. spend some time doing sth”互 如换: 。It took us an hour to send this email.
moon(月球)
Earth(地球)
space(太空)
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Who has been to the space in China?
astronauts(宇航员)
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How did they go there and back?
take the space ship(航天飞机)
Arrive, discover, planet, send, yet
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On today’s news, Tony has heard
that scientists have (1) _s_e_n_t a spaceship
to Mars and it has (2) _a_r_r_iv_e_d_ on the (3)
We have…
_A__d_o_g_h_a_s______ _t_ra_v_e_l_le_d__in__s_p_a_ce. _M__e_n_h__a_ve______ _t_ra_v_e_l_le_d__to__th_e__ _m__o_o_n_. ________ _…_____________
求做的事）
adj. 最近的，最新的
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latest/′leitist/
Words and expressions
on/ɔn/ prep. 在（播放）
中；关于……
discover/di′skʌvə/ v. 发现；找到
astronaut/′æstrən ɔ:t
space travel
They reach school at 7 o’clock in the
morning.
他们早上7点到校。
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2. What are you up to?
你在干什么呢？ be up to用于表示 “忙于……，正在 做……”。例如： 这么多书放在地上，他在干什么呀？
What is he up to with all those books on the
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Listen and underline the words the speaker stresses.
1. I’ve just made a model spaceship for our school project.
2. I haven’t started yet because I’m not sure how to make it.