1、Unit 4 Astronomy: the science of the stars,Using language:A visit to the moon,“One small step for a man, one giant leap for mankind”.,Neil Armstrong (1930 ), USA. He landed on the moon in July 1969.,“这是个人迈出的一小步，但却是人类迈出的一大步 。”,Who was the first man landing on the moon?,spacewalk,Look at the pictures!
2、,spaceship,float,zero gravity/ weightless,We visited the moon in our spaceship.,Para.2,Before we left, Li Yanping explained to me the most powerful.,Para.1,But returning to the earth was very frightening.,Para.4,When we got there, I wanted to explore immediately.,Para.3,Fast reading,Read the passage
3、 quickly and try to find the topic sentence of each paragraph.,The force of gravity would change four times on their journey . ( )2. When they were on the moon, they would not feel the gravity because there was no gravity on the moon. ( )3. Since the gravity has changed, their walk didnt need a lot
4、of practice. ( )4. “A visit to the moon” was not a real story but science fiction .( ),F,F,F,T,True or false questions,Detailed reading:,Read and then describe the three ways in which gravity changed for Li Yanping and how his weight changed.,1. The pull of gravity became very strong as he left the
5、earths atmosphere. His weight is normal.,2. It disappeared when he was in space. He is weightless.,3. It was very light when he was on the moon. He weighs less than on earth.,1. Last month I was lucky enough to have a chance to make a trip into space with my friend Li Yanping, an astronomer.,Languag
6、e points,have a chance to do 有机会做某事 I hope I can have a chance to travel to space. give sb a chance 给某人机会 Could you give me one more chance? by chance =by accident I discovered it by chance.,2. When we get closer to the moon, we shall feel its gravity pulling us, but it will not be as strong a pull
7、as the earths.,get close to 靠近，接近，指动态变化 be close to 距.近，指状态 The school is close to the post office.,家长应该阻止孩子接近火。_,Parents should prevent children from geting close to fire.,as +adj (+a +可数名词单数）+as as +adj+(不可数名词或可数名词复数）+as 和.一样 He asked me as difficult a question as yours. I have as many friends as
8、he.,3. I cheered up immediately and floated weightlessly around in our spaceship cabin watching the earth become smaller and the moon larger. Cheer up! Im sure youll feel better tomorrow.He tried to cheer them up with funny stories,1). “A + be + 倍数 + as +形容词原级 + as + B”. This tree is three times as
9、tall as that one. His father is twice as old as he.,4. But when I tried to step forward, I found I was carried twice as far as on the earth and fell over.,The Yangtze River is almost twice longer than the Pearl River.,2). “A + be + 倍数 +形容词比较级 + than + B ”,3). “A + be + 倍数 + the +名词 (size, length, am
10、ount) + of + B”,The newly broadened square is four times the size of the previous one.,考例：Our new library is _ the old one. A. four times as large as B. four times the size C. four times larger D. four times larger than that,5. . “walking does need a bit of practice now that gravity has changed.,now
11、 that同since相似，语气较弱，强调人们已知的事实。后跟句子。,Translation: 既然你有机会，就应该充分利用它。Now that youve got a chance, you should make full use of it.,6. We watched, amazed as fire broke out on the outside of the spaceship as the earths gravity increased. break out 它与happen, take place, come out等词的用法一样，是不及物动词，不能带宾语，不能用于被动语态。
12、,1) 战争爆发The American Civil War broke out in 1861. 2) 发生争吵A quarrel broke out between them.,3) (火灾)发生 Afirebrokeoutinhishouselastnight.,break down (精神、身体）崩溃；（谈判等）破裂 break in 破门而入; 打断,与break相关的短语:,break through 突围; 突破;break up 打碎; 解散;,If you were going to the moon, what things would you need? Why?,things needed on the moon,oxygen tanks,space food,spacesuit,water,Step3,Discussion,spaceship,qualities of an astronaut,good health,right height and weight,many years training,calmness,Step3,Discussion,patience,If you were going to the moon, what qualities should you have?,
