Unit 4 Topic 3 I don't think aliens can be found in space.

第四单元 话题 3 我认为在宇宙中不存在外星人。

Section A

1a Look, listen and say

Kangkang： Hi, Maria! There will be a wonderful movie this Saturday evening. Shall we go to watch it?

康康： 嗨，玛丽亚！本周六晚上有场精彩的电影。我们去看看如何？

Maria： Great! What's it about?

玛丽亚： 听起来不错！是关于什么的？

Kangkang： It's about life in space.

康康： 是一部有关太空生活的电影。

Maria： That sounds exciting .听起来很刺激。

Kangkang： Yes. All the people travel by spaceship in the movie, and they can visit planets like Mars.

康康： 是的。在电影里，所有的人都乘坐宇宙飞船旅游，他们能够参观像火星一样的星球。

Maria： Really? Kangkang, do you think people will live on Mars in the future?

玛丽亚： 真的？康康，你认为将来人们会居住在火星上吗？

Kangkang： Yes, I think we will live in space one day.

康康： 是的，我想将来我们会在太空居住。

There will be houses, schools, hospitals and so on.

那里有房屋，学校，医院等等。

We will be able to do anything that can be done on earth.

我们能做任何在地球上可以做的事情。

Maria： What fun! I can't wait.太有趣了！我等不及了。

2a Listen, read and say

(Maria and Kangkang are talking after watching the movie.)

（玛丽亚和康康看完电影后，正在谈论这部电影。）

Maria： Do you believe there are aliens?你相信有外星人吗？

Kangkang： I'm afraid not. If there are aliens, where are they?恐怕没有。如果有外星人，他们在哪里？

Maria： But some scientists think there are aliens.

玛丽亚： 可是一些科学家认为存在外星人。

One American scientist thinks they have already come to the earth,一位美国科学家认为他们已经在地球上生活了。

and they are reading information on the Internet in order to learn about human culture.他认为他们通过网络浏览来了解人类文化。

Kangkang： Aliens are described and discussed by many people. But I don't think aliens can be found in space.许多人描述并且谈论外星人，可是我不相信宇宙中存在外星人。

Maria： You're probably right. I won't believe there are aliens until I see them with my own eyes.你也许是对的。除非我亲眼看见，否则我不会相信外星人是存在的。

Section B

1a Listen, read and say

Kangkang： Maria, have you heard the news about the space flight to Mars on the radio ?

康康： 玛丽亚，你听到广播新闻说要往火星的太空航行的消息吗？

Maria： No, I haven't. Who will take part in the space flight?

玛丽亚： 不，没有。谁参加这次太空航行？

Kangkang： Astronauts from China, the United States and Russia. 有分别来自中国，美国和俄罗斯的宇航员。

I really admire them. They can travel into space and discover something new about Mars.我真的很羡慕他们。他们可以到太空遨游，探索火星的新面目。I'd like to be an astronaut when I grow up.我长大了要当个宇航员。

Maria： It is really cool.真是太酷了。However, I think you should first master some basic computer skills.

可是，我觉得你必须首先掌握一些基本的电脑技能。

Kangkang： Sure, Maria, what are you going to be?

康康： 没错。玛丽亚，你将来想做什么？

Maria： Mmm, I am not sure. Sometimes I want to be a dancer, but I think I'm going to be a scientist in the future.

玛丽亚： 恩，我不确定。有时我想当个舞蹈家，但我觉得将来我要做个科学家。

Kangkang： Why? I think you dance very well.

康康： 为什么？我觉得你的舞跳得不错。

Maria： Yes, I'm sure I can perform ballet on the stage in the future. But I prefer science to dance.

玛丽亚： 是的，我相信将来我可以在舞台上表演芭蕾舞。可是比起舞蹈，我更热爱科学。It is my favorite subject in school.

那是我在学校里最喜爱的科目。I believe more and more things will be discovered in the future.

我相信将来越来越多的新现象会被发现。

Kangkang： That's wonderful! Let's work hard to make our dreams come true.太棒了！让我们努力学习，实现梦想。

2 Work alone独立练习

Listen to the conversations and number the problems in the correct order.听对话，给下列问题排序。Then listen again and complete the sentences.然后再听一次，完成句子。

1 My pet pig is ill.我的宠物猪病了。I'm sorry to hear that, John. It should be taken to the pet hospital.

听到这个消息很遗憾。约翰，应该带它去宠物医院。

Ok, let's go.好的，我们走吧。

2 These trees are dying. What's wrong with them?这些树快枯死了。它们怎么了？They must be dry.肯定是太干了。

We should water them at once.应该马上替它们浇水。

3 Oh, no!噢，不！What happened, Sam?山姆，怎么了？

My watch doesn't work. Maybe I need to buy a new one.

我手表坏了。或许我该买个新的。I think you should try to repair it first.我觉得你首先该试着修修它。

4 I'm going away on business, but I have no one to look after my daughter.我要出差，但是没有人照看我女儿。

Take it easy, Sandy. She can be sent to her grandmother.

别担心，山迪。可以送她去她奶奶那儿。

3 Read and understand阅读理解

The Time Machine时间机器

This film is based on a science fiction story.这部电影基于一部小说。A scientist and inventor decides to prove that time travel is possible. He wants to change the past.

一位科学家兼发明家决定证明时间是可以旅行的。他想要改变过去。To test his idea, he travels 800 000 years into the future with the help with his own invention — a time machine ...

为了证实他的想法，他利用他自己的一项发明——时间机器，造访了未来的800 000年。

E.T.《E.T.》

A group of aliens visit the earth and one of them, E.T., gets lost and is left on this planet.一群外星人访问地球，其中一个迷路了，留在这个星球上。

He is found by a 10-year-old boy, Elliot.外星人被一个10岁的小孩埃利奥特发现了。

Soon the two begin to communicate and start a different kind of friendship.不久两人开始交流，开始一段不同寻常的友谊。

E.T. wants to go home, but if Elliot helps him, he'll lose a friend ...E.T.想回家，可是如果埃利奥特帮助他，他会失去一个朋友……

Spacewalk<<太空漫步》

There is something in space that we don't know about ...

太空中有我们不知道的东西……

Spacewalk is a science fiction film about the year 2100.

《太空漫步》是一部关于2100年的科幻电影。

A trip to the moom goes wrong. Is this the beginning of the end for the earth?一次登月的旅程发生故障。这是地球末日的开始吗？

Section C

1a Read and understand阅读理解

What do you know about Mars? What does it look like?

你了解火星吗？它看起来像什么？Mars is the fourth planet from the sun in our solar system and is named after Mars, the Roman god of war.火星是太阳系中与太阳相距最近的第四颗行星，是以罗马的战神火星命名的。Its diameter is 53% as wide as that of the earth.它的直径是地球直径长度的53%。

Mars goes around the sun at a distance of about 228 million kilometers. 火星在距离太阳228百万公里的地方绕着太阳转。

You can tell which planet is Mars because it is bright red in the night sky.你可以认出哪颗是火星，因为它在夜空中又红又亮。It looks like a red and orange ball. It's very beautiful.它看起来像个橙红色的球。很漂亮。But during spring and summer, strong storms can cover the whole surface of Mars.

可是在春天和夏天，强大的风暴可以覆盖火星的整个表面。

The gravity on the surface of Mars is about two-fifths as strong as it is on the earth.火星表面的重力是地球上的五分之二。So a person who weighs 90 kilos on earth weighs only 36 kilos on Mars.因此一个在地球上重90公斤的人，在火星上只有36公斤。The temperature on Mars is between -138°C and 28°C. The air has only 0.13% oxygen.火星上的温度在-138到28摄氏度之间。空气中只含有0.13%的氧气。It takes a spaceship about eight months to reach Mars from the earth when the two planets are closest to each other.

当地球和火星距离最近的时候，宇宙飞船从地球上到达火星需要大约8个月的时间。Scientists are still searching for more information about Mars.科学家们都仍在寻找更多的有关火星的信息。

2 Work alone独立练习

Kangkang's uncle sent an e-mail to him from Mars, but some words are missing. Listen to the tape and complete it.

康康的叔叔从火星给他发了一封电子邮件，但是有些文字丢失了。听磁带，然后完成它。

Hi Kangkang,

你好，康康，

It has been two days since we landed on Mars.

我们在火星上已经整整两天了。

It took us more than two years to get here.

我们花了两年多的时间才到达这里。

Generally, the journey went well. But the living conditions were quite bad during the journey.

总的来说，旅程很顺利。可是旅程中的生存条件非常恶劣。

We had to produce most of the food in the spaceship.

我们必须在太空船中做出大部分的食物。

What's worse, our water supplies were very low.

更糟糕的是，我们的水源供应非常紧缺。

We had to limit the use of water during those days.

在那段时间里，我们必须限制饮水。

It is six weeks since we had a proper shower.

自从上次洗澡后，我们已经有6个星期没怎么洗澡了。

763 days — what a long time!

763天——多漫长的一段时间啊！

I often miss my family, but the excitement of being on Mars is worth it!我经常想念我的家人，但是抵达火星上的兴奋让人觉得还是值得。

Good luck!

好运！

Yours,

你的，

Uncle Stephen

斯蒂芬叔叔

Section D

1a Read and understand阅读理解

Scientists think that there has been life on earth for millions of years.科学家认为几百万年来地球上存在着生命。

However, we haven't found life on other planets yet.

可是，在其他行星上我们仍然找不到生命。

The earth is a planet and it goes around the sun.

地球是一颗行星，它绕着太阳转。

And there are seven other planets that also go around the sun.有其他七颗行星同样绕着太阳转。

The sun and its planets are called the solar system.

太阳和它的行星们被称为太阳系。

The solar system is a small part of the universe.

太阳系是宇宙的一小部分。

Scientists have launched many spaceships to explore other planets in the solar system.

科学家们已经发射了很多宇宙飞船去探索太阳系中的其它行星。

Some spaceships have gone beyond the solar system.

一些宇宙飞船已经可以飞出太阳系的范围。

However, no one has discovered any life in space yet.

然而，目前没有人发现太空中有任何生命的迹象。

Why has no one from other planets sent us a message?

为什么没人从其他行星上发信号给我们？

Have they tried to send information to us?

他们试过发信号给我们吗？

With so many stars in space, are we alone, or is there life on other planets in space?太空中这么多星星，我们是独一无二的，或是太空中其他行星上还存在着生命的迹象吗？

3a Grammar focus语法重点

Passive voice (III)

被动语态（三）情态动词的被动语态

I don't think aliens can be found in space.

我认为宇宙中不存在外星人。

More satellites must be sent into space.

需要发射更多的卫星到太空中。

Other planets may be visited in the future.

将来还可能造访别的星球。

It should be repaired first.

应该首先修理。

3b Useful expressions习惯用语

What fun!真有趣！

I won't believe there are aliens until I see them with my own eyes.我不相信外星人的存在，除非我亲眼看见。

... I'm going to be a scientist in the future.

……将来我想成为一名科学家。

Its diameter is 53% as wide as that of the earth.

它的直径是地球直径长度的53%。

 

scientific[ˌsaiənˈtifik] adj科学的

research [riˈsə:tʃ]n研究，调查

admire[ədˈmaiə]v.钦佩，羡慕

basic[ˈbeisik]adj.基本的，基础的

coach[kəutʃ]n.教练；马车；长途车

base[beis]v.以……为基础(根据)

be based on以……为基础(根据)

science fiction科幻小说[ˈfikʃən]

solar system太阳系[ˈsəulə]

Roman [ˈrəʊmən] adj罗马的，罗马帝国的

diameter[daiˈæmitə]n.直径

radius[英][ˈreidjəs] 半径

storm .风暴，暴(风)雨

gravity [ˈɡræviti].重力，引力，地心引力

limit[ˈlimit] v限制，限定

universe [ˈju:nivə:s]n宇宙

beyond[biˈjɔnd]prep.超出……之外

separate adj单独的，分开的

separate[ ˈsepəreit]v.使分开，使分离

hand in上交；交纳