1、Unit 4 Astronomy: the science of the stars Using Language,1. Discuss the three ways in which gravity changed on the moon and some information about black holes. 2. Listen to the material about the detailed information about different scientists and their ideas. 3. Help students learn how to write a

2、passage.,1. Do you want to visit the moon?,July 20th 1969,Brainstorming,the photo from the moon,Which country first sent people up to space?,A. The USA B. The Soviet Union C. China,Who is the first man landing on the moon?,Who is the first Chinese astronaut to go into space?,Yang Liwei,Armstrong (Am

3、erica, 1969),2. Do the following quiz:,Chinas first astronaut Yang Liwei,a visit to the moon,Space buggy登月車,1. The type of this test. na 2.Who do I have a chance to travel to the moon with ? 3. How did we travel to the moon? 4. Whats the writing order in this text? 5. How many times would the force

4、of gravity change on our journey? Which change would be the most powerful?,Li Yanping , an astronomer,by spaceship,Three times , the first time,Reading,in time order,Task one: scanning,1.Leaving for the moon Please read Para.2 and find the change of the gravity and our weight during the journey.,Tas

5、k Two: Careful reading,(1)The change of gravity,on the moon,in space,gravity,very light,disappearing,strong,on the earth,(2)The change of my weight,weight,on the moon,in space,on the earth,one-sixth,heavy,no weight,2.Walking on the moon,What happened to me when I tried to step forward? Why?,I was ca

6、rried twice as far as on the earth and fell over. Because the gravity has changed.,3.Returning to the earth,Because fire broke out on the outside of the spaceship as the earths gravity increased.,(1)Why was returning to the earth very frightening?,(2)How did I feel?,I was very exhausted but very exc

7、ited too.,Language points 1. But when I tried to step forward, I found I was carried twice as far as on the earth and fell over. “A + be + 倍數(shù) + as +形容詞/副詞原級(jí) + as + B” A is twice/three times/ten times as large/far/high/much as B This tree is three times as tall as that one. 這棵樹是那棵樹的三倍高。 His father is

8、 twice as old as him. 他爸爸的年齡是他的兩倍大。,(2) A + be + 倍數(shù) +形容詞/副詞比較級(jí) + than + B A is twice/three times/ten times larger/higher than B The Yangtze River is almost twice longer than the Pearl River. 長(zhǎng)江差不多比珠江長(zhǎng)兩倍。 The number of students in our school is three times larger than that in theirs. 我們學(xué)校的學(xué)生數(shù)量比他們學(xué)校的多

9、三倍。,(3) “A + be + 倍數(shù) + the +名詞 (size, length, amount) + of + B” The new house is four times the size of the old one. 新房是舊房的四倍大。,我的房子是你房子的三倍大。 My house is three times as large as your house. My house is twice larger than your house. My house is three times the size of your house.,A + 實(shí)意動(dòng)詞+ 倍數(shù)+ as+ 形容

10、詞/副詞原級(jí)+ 名詞+ as + B He spent three times as much money as he did.,【即學(xué)即練】 Do you regret _ (pay) 100 dollars for the painting? No, I would gladly have paid _ (兩倍那么多)for it.,2.get the hang of sth. After a while I got the hang of it 過了一會(huì)兒我對(duì)它有所了解,熟悉某物運(yùn)作,了解某事的意義,我一直想知道這部新的打字機(jī)的用法。,Ive been trying to _ this

11、new typewriter.,我十分不了解你的論據(jù)的意義。,I dont quite _ your argument.,get the hang of,get the hang of,get the hang of sth.,3. break out We watched, amazed as fire broke out on the outside of the spaceship as the earths gravity increased. 我們看著，驚訝于當(dāng)?shù)厍虻囊υ黾訒r(shí)飛船外層燃燒起火。 break out 與happen, take place, come out等詞的用法

12、一樣，是不及物動(dòng)詞，不能用于被動(dòng)語態(tài)。 (1) 戰(zhàn)爭(zhēng)爆發(fā) The American Civil War broke out in 1861. 美國(guó)內(nèi)戰(zhàn)爆發(fā)于1861年。,(2) 發(fā)生爭(zhēng)吵 A quarrel broke out between them. 他們之間發(fā)生了爭(zhēng)吵。 (3) (火災(zāi))發(fā)生 Afirebrokeoutinhishouselastnight. 昨晚他家里失火了。 【拓展】 break down 打破; 壞掉;人身體垮掉 break in 破門而入; 打斷 break up,Pre-listening,Isaac Newton （16431727 英國(guó)物理學(xué)家）,他是 經(jīng)典

13、物理學(xué)理論體系的建立者。 1665年創(chuàng)立微分；1666年開始研究積分。1666年,開始想到研究重力(gravity)問題，蘋果落地的傳說，也是在此時(shí)發(fā)生的。其一生的重大科學(xué)思想是在這兩年（22至23歲）形成的。1669年，把自然哲學(xué)的數(shù)學(xué)原理宇宙體系等手稿送到劍橋大學(xué)圖書館收藏。晚年研究宗教。,Albert Einstein（18791955）,質(zhì)量(m)和能量(E)的相當(dāng)性：Emc2 愛因斯坦在量子論、分子運(yùn)動(dòng)論、相對(duì)論(Theory of Relativity)等物理學(xué)的三個(gè)不同領(lǐng)域取得了歷史性成就，特別是狹義相對(duì)論的建立和光量子論的提出，推動(dòng)了物理學(xué)理論的革命，他對(duì)社會(huì)的進(jìn)步事業(yè)也有重要

14、貢獻(xiàn)。,Stephen Hawking (1942 ？）,史蒂芬霍金是當(dāng)今科學(xué)界的一位傳奇性人物。這不僅僅因?yàn)樗且晃槐蛔u(yù)為繼愛因斯坦之后最著名的科學(xué)思想家和最杰出的理論物理學(xué)家，還在于他是在常人無法想象的身體狀況下進(jìn)行研究和創(chuàng)造性工作的。,black holes 黑洞,黑洞并非只是吞噬物質(zhì)。除了會(huì)在星系形成的過程中扮演重要角色外，在經(jīng)過一段相當(dāng)漫長(zhǎng)的時(shí)間后，黑洞也會(huì)把一些曾被它吸入的物質(zhì)信息向外界釋放出來。,Summary B is correct because it gives a clear idea of what the listening passage is about. Su

15、mmary A is not true. The three scientists wanted to explain how the universe worked and not how it began. Summary C is too general and does not give enough details about what the listening passage is about.,Choose the best summary.,Listening,Large bodies have a force which pulls things towards them.

16、,In space large objects make space-time bend; the larger the object is, the further space-time bends.,Black holes have a very large mass and pull things towards them.,The bigger the object, the stronger the gravity.,Time goes more slowly in very strong gravity.,If you go over the edge, you cannot ge

17、t out; but if you do not, you may be able to escape.,What would you need?,Speaking task,spaceship,spacesuit,water,oxygen producer,a space camera,If we were going to the moon,Discussion-1 (3 minutes),Fill in the chart.,spaceship with water to cool you,carrying oxygen tanks,a rope to tie you to the sp

18、aceship,space food that you can eat easily,spacesuit,spacebuggy,spacesuit,spacesuit,sunglasses,a space camera,Brainstorming for writing (3 minutes),What will we meet on the moon?,when,where,what,who,problems,solve (how),Writing an outline(3 minutes),How to write an outline?,Outline (main idea),The f

19、irst paragraph (introduction),Body (your own ideas on the item),Conclusion (summing up),heading,You are expected to design 3 problems:,Main idea: explain the three problems you will have while visiting the moon.,Paragraph 1: problem 1 and how you will solve it.,Paragraph 2: problem 2 and how you wil

20、l solve it.,Paragraph 3: problem 3 and how you will solve it.,Summing up: how successful the holiday will be if you follow this advice.,選用方框內(nèi)合適的詞或短語，并用其適當(dāng)形式填空。(其中有一個(gè)多余選項(xiàng)) There was a _ of people around the club entrance. 2. You ought to have a good rest youve finished the work.,mass,now that,float;

21、now that; mass; get the hang of; pull,3. She spent the afternoon _ on her back in the pool. 4. It seems difficult at first, but youll soon _ it.,floating,get the hang of,Choose the best answers. 1.The new stadium being built for the next Asian Games will be _the present one. A. as three times big as B. three times as big as C. as big as three times D. as big three times as 2.Please keep your word _ you