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1、Unit 4 Astronomy: the science of the stars,How Life Began on the Earth,Period 1,Science Subjects,Physics Chemistry Biology Geology Mathematics,Medicine Biochemistry Geophysics Astronomy,Astronomy is the scientific study of the universe and the heaven bodies (such as the sun, the moon, and stars), ga
2、s, and dust within it.,astronomer,The Big Bang,The Solar system,eight planets many comets other objects,Water Air Life,Water is the headspring of life.,?,A cloud of dust Combine into a solid ball Explodewith fire & rock (produce H2O, CO2,O2, N2, other gases),atmosphere,Cool down,water appeared,disso
3、lve harmful gases into ,Life began,Life developed,The development of life,A cloud of dust a solid ball presence of water on the water shellfish & other fish plants begin to grow on dry land insects and amphibians appear retiles appear dinosaurs appear mammals appear,The development of life,insects a
4、nd amphibians appear,retiles appear,dinosaurs appear,mammals appear,Good morning/afternoon, I am Dr. Im greatly honored to be here to give you a speech about the development of life. ,What problems have been caused by humans to the earth?,How to protect the earth and make it a better place to live o
5、n?,Design an activity on Earth Day,What the activity is about Why the activity is designed When and where to do the activity Who takes part in the activity What to be done in the activity ,Homework Search the Internet for the information of the development of life. 2. Read and learn good words, phra
6、ses or structures from Reading.,Period 2 Using Language & Reading Task,the natural force that causes an object to move toward the centre of the earth.,Gravity,Isaac Newton,Albert Einstein,Stephen Hawking,Gravity,I heard about how three men made mistakes when they tried to describe gravity. I heard a
7、bout how three men wanted to find out about the beginning of the universe. I heard about how the idea of gravity has developed over a long period of time. I heard about three scientists and their work.,Main idea,1642-1727,1879-1955,1942-,Everything is affected by a force called gravity,Gravity is co
8、nnected to time and space,“Black holes” “eat” objects but also “spit” them out.,It was only about the earth.,It was about the universe.,It was about things found in the universe called “black holes”.,A visit to the moon,On the moon,The change of gravity,In space,Very strong,Very heavy,Disappeared,Fl
9、oated weightlessly,Very light,The mass will be less,Leave the earth,Last month I visited the moon with my friend. Before we left, I was told the force of g_ would change three times on our journey. Then we took off. As we left the earth, I became very h_. Gradually the weight l_. When I was in space
10、, it d_. We f_ weightlessly in the cabin and I c_ _. When I was on the moon, I was surprised to find out even walking needs lots of practice n_ _ gravity changed. The returning of the earth was very f_. We were amazed to watch fire b_ _ on the outside of the ship.,gravity,heavy,lessened,disappeared,
11、floated,cheered up,now that,frightening,break out,A black hole,About us,About the black hole,About others,Circle of lights,Large stars,Like a mouth,In shock and amazement,Light went out Computers stopped working,Feel sick My mouth dry Close my eyes,Spaceship not move,I was bumped and banged able to
12、look,Spit objects out,Pull us into its mouth,Jumped again,increase its speed as fast as light,like a bird,Jump and went faster My watch slower,exciting,Computer began to work again,turn away,Homework 1.Search for more about the black hole. 2.Read these two passages again to find out how to organize
13、a story.,Period3 Listening task, talking, listening and writing,C. To make the Hubble telescope work again.,Why did Li Yanping have his first space walk?,A. To collect data for his research on gravity.,B. To test the function of the new spacesuit.,C. To make the Hubble telescope work again.,How to c
14、ool you,How to breathe,Problems,What to eat,What to dress,1.Oxygen can,2.Water system,3.Gravity boots,4. Left engine,5.Right engine,6.Tool kit,Please look at/ listen to Please check that You need Please pay attention to Dont forget to Youd better Make sure you Watch out for You must(nt),The manned s
15、pacecrafts Shenzhou 5 & 6,Oct. 15, 2003,Oct. 12, 2005,Yang Liwei,21 hours and 23 minutes,5 days,video,Fei Junlong Nei Haisheng,Interview,Mr. Renault,Yang Liwei became an astronaut by chance. Nobody over 170cm can be an astronaut. Yang Liwei trained for 10 years to become a pilot. If Yang Liwei had p
16、roblems in space, there were ways to save him. China is the third country to send people into space just like Russia and the USA. Yang Liwei thinks he was lucky to be Chinas first man in space.,T,True OR False,F,F,T,T,T,Excellent degree and 10 years training,Pilot for the air force of the PLA,Smaller
