或者银河。
There are billions of stars in the Galaxy, and our sun is only one of them.
银河系里有无数颗恒星，我们的太阳只是其中一颗。
Scientists have also discovered many other galaxies in the universe. 科学家已经在宇宙中发现了很多其他星系。
They are very far away and their light has to travel for many years to reach us. 他们离我们很远，他们发出的光要在宇宙中经过很多年才抵达地球。 So how large is the universe? It is impossible to imagine.
那么，宇宙到底有多大？我们无从想像。
Scientists have sent spaceships to the plant of Mars to take photos. 科学家发射了航天器到火星上拍摄图片。
They even have sent spaceships to travel outside the solar system. 甚至发射航天器到太阳系以外进行探索。
However, no spaceship has travelled far enough to reach near other stars in our Galaxy. 然而，还没有任何航天器到达银河系里的其他恒星。
Scientists have always asked the question: With so many stars in the universe, are we alone, or is there life out there in space?
科学家们一直在问这些问题：宇宙中有这么多星球，只有地球上有生命吗？或者，宇宙中还有其他生命存在？
Have there been visitors to the earth from other planets? 是否有来自其他行星的人造访过地球？ Why has no one communicated with us? 为什么没有任何人与我们联络过？ We do not know the answers…yet.
目前我们还无从知晓这些问题的答案。
Unit 3 language in use
7 Listen and complete the notes.
Interviewer: Today’s programme is about space travel. I’m talking to an astronaut from CNSA. Hello, we’re interested to hear about your experiences in space. When did you join CNSA?
采访者：今天的节目是有关太空旅行的。我正在和一位来自中国国家航天局的宇航员交谈。你好，我们很有兴趣听一下你在太空的经历。你是什么时候加入中国国家航天局的？ Astronaut: Six years ago. 宇航员：六年前。
Interviewer: And how many times have you flown in a spaceship? 采访者：你乘宇宙飞船飞行过几次？
Astronaut: Two times. 宇航员：两次。
Interviewer: How did you feel when you were in the spaceship? 采访者：在宇宙飞船上时，你感觉怎么样？ Astronaut: I enjoyed it. It was very exciting. 宇航员：我非常喜欢。那非常令人兴奋。
Interviewer: Have you worked on the space station? 采访者：你在太空站工作过吗？
Astronaut: Yes, I have. I’ve already been there twice. 宇航员：是的，我工作过。我已经去那儿两次了。
Interviewer: Have you seen the earth from the space station? 采访者：你从太空站看过地球吗？
Astronaut: Yes, I have. It’s very blue, and very beautiful. 宇航员：是的，我看过。它很蓝，并且非常漂亮。
Interviewer: How wonderful! How did you feel when you saw it? 采访者：真好！看到它时你有什么感觉？ Astronaut: I was so happy. I wanted to cry. 宇航员：我非常高兴，想哭。
Interviewer: I’m sure. Tell me, why did you decide to become an astronaut ? 采访者：我确定（你会）。告诉我，你为什么决定成为一名宇航员？ Astronaut: I’ve always been interested in space. It’s so exciting! 宇航员：我总是对太空感兴趣。它是那么令人兴奋！ Interviewer: Do you think there’s life on other planets? 采访者：你认为在其他星球上有生命吗？
Astronaut: Yes, I do. The universe is so big. There are so many galaxies, and so many solar systems. 宇航员：是的，我认为有。宇宙那么大。有那么多的星系和那么多的太阳系。 Interviewer: But we haven’t found anything yet. 采访者：但是我们还没有发现任何东西。
Astronaut: We’ve only just begun to look. Give us time! 宇航员：我们才刚刚开始寻找。给我们时间!
Interviewer: (laughing)Another hundred years maybe? Well, thank you for talking to us. It’s been great to talk to you. 采访者：（笑）也许再一百年？嗯，谢谢你和我们谈话。和你谈话真好。 Astronaut: Thank you. 宇航员：谢谢。
Module 4 Seeing the doctor
Unit 1 I haven’t done much exercise since I got my computer.
2 Listen and check（√）what’s wrong with Betty and Daming.
Daming: Hi, Betty. 大明：你好，贝蒂。
Betty: Hi, Daming. You don’t look very well. What’s the matter with you? 贝蒂：你好，大明。你看起来不是很舒服。怎么了? Daming: (groaning) I’ve got a stomach ache and a headache. 大明：（呻吟）我胃疼、头疼。 Betty: Have you seen a doctor ? 贝蒂：你看过医生了吗？ Daming: No, I haven’t. 大明：不，还没有。
Betty: You should go and see one! 贝蒂：你应该去看一看。
Daming: OK. You don’t look very well either, Betty. What’s the matter with you? Have you got a fever ?
大明：好的。你看起来也不是很舒服，贝蒂。你怎么了？你发烧了吗？ Betty: Yes, I’ve got a temperature…and a cough. 贝蒂：是的，我发烧……还咳嗽。 Daming: You should see a doctor too. 大明：你也应该去看医生。
Betty: I’ve seen a doctor. I saw a doctor this morning. Ah! 贝蒂：我已经看过了。我今天早上看医生了。啊！ Daming: What’s the matter ? 大明：怎么了？
Betty: I’ve got a toothache as well! 贝蒂：我也牙疼！
3 Listen and read.
Doctor: How can I help you? 医生：你哪里不舒服？
Daming: I feel ill. I’ve got a stomachache and my head hurts. 大明：我感觉自己病了，胃痛，头也痛。 Doctor: How long have you been like this? 医生：你这样有多长时间了？
Daming: Since Friday. I’ve been ill for about three days! 大明：从周五开始，我已经病了三天了。 Doctor: I see. Have you caught a cold? 医生：噢。你着凉了吗？
Daming: I don’t think so. 大明：我觉得没有。
Doctor: Let me take your temperature…Mm, there’s no fever. What kind of food do you eat? 医生：让我给你量一下体温。嗯，没发烧。你平常都吃什么？ Daming: Usually fast food. 大明：通常都是快餐。
Doctor: Do you have breakfast?
医生：你吃早餐吗？
Daming: No, not usually. 大明：不，不经常吃。
Doctor: That’s the problem! Fast food and no breakfast. That’s why you’ve got a stomachache. 医生：问题就在这里了。总吃快餐，不吃早餐。这就是你胃痛的原因。 Daming: What about the headache? 大明：那头痛是怎么回事呢？
Doctor: Do you do any exercise? 医生：你锻炼身体吗？
Daming: Not really. I haven’t done much exercise since I got my computer last year. 大明：我没怎么锻炼。自从去年买了电脑就没怎么运动过。
Dcotor: You spend too much time in front of the computer. It can be very harmful to your health. 医生：你在电脑前坐的时间太长，这对健康不好。 Daming: OK, so what should I do? 大明: 知道了，那我该怎么做呢？
Doctor: Well, don’t worry. It’s not serious. First, stop eating fast food and have breakfast every da Second, get some exercise, such as running. And I’ll give you some medicine. Take it three times a day.
医生：噢，不用担心，不严重。第一，别再吃快餐了，每天都要吃早饭。 第二，做些运动，比如包不什么的。我给你开点药，每天吃三次。 Daming: Thank you, doctor. 大明：谢谢您，医生。
Unit 2 We have played football for a year now.
Healthy living 健康生活
I was not feeling very well so the doctor checked my heart and said I needed more exercise. 我感觉不是很舒服，于是医生给我做了心脏检查，说我需要多做运动。 I have never been very active, and I do not like sports. 我一直以来不怎么活跃，也不喜欢运动。
I have always wanted a pet, so my parents gave me a dog for my birthday. 我一直想要个宠物，所以生日的时候父母就送我一条狗。
Now I get exercise by taking him for a walk every day.
现在我每天借着遛狗运动一下。
I have had him for three months now and I feel really healthy. ----Anna
现在我的这条狗养了快三个月了，我感觉自己真的很健康。——安娜
Our teacher decided to start a girl’s football team and I thought,―What a great idea!‖ I was the first member of the team.
我们老师决定组建一支女子足球队，当时我想，―这主意太棒了！‖我是这支球队的第一名队员。 We have played football for a year now and we all feel very fit. 我们已经提了一年的足球了，大家都感觉身体很健康。
Our teacher is the coach, and she also takes part in the same training with us. 我们老师是教练，她和我们参加同样的训练。
She is in excellent condition too. ---- Wang Wei 她身体状况也很好。 ——王薇
For the last few years, I went to work by underground. 过去的几年里我都是坐地铁上班的。
When I got to work, I always felt very sleepy and I was not happy. 上班时总是感到很困，情绪不高。 I bought a bike in January. 今年一月，我买了辆自行车。
Science then, it has become part of my life. 从那以后，它就成了我生活中的一部分。
Now I ride to wok every day. It is my daily exercise. 每天骑车上班，骑车成了我的日常运动。
I arrive at work with a smile on my face. ---- Thomas
现在我开始工作时总是面带微笑。——托马斯
I was weak after a long illness, soI wanted to exercise more. 久病之后我觉得自己身体很虚，因此想多运动运动。
Then a friend suggested, ―Why don’t we go for a run before school?‖
于是，一位朋友建议说：―上学前我们跑跑步吧？‖
So we started running a week ago. 一周前我们开始跑步锻炼。
But I do not enjoy running, and when I get to school, I feel awful. 但是我不喜欢跑步，到学校时感觉不舒服。
My legs hurt and I am hot all over. 我的腿痛，全身发热。
Perhaps I am too weak to do any exercise. 也许是我太虚弱了不能做任何运动。 What do you think? ----Richard
你怎么看？——理查德