Unit4 discovering useful structures-ppt课件-(2021新)人教版高中英语必修第三册.pptx

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1、Period 4 Discovering Useful Structures-Describe space facts and efforts to explore space1. identify and analyze the usage of infinitives as adverbials and attributes ;2. master the usage of infinitives as adverbials and attributes through self-study and practice. 3. use infinitives to describe space

2、 facts and efforts to explore space.nBy the end of this period, you will be able toMystery creates wonder and wonder is the basis of mans desire to understand.Neil Armstrong动词不定式动词不定式to do作状语和定语作状语和定语1. I trained for a long time to fly airplanes as a fighter pilot. _ 2. As we all know, an astronaut

3、needs to be healthy and calm in order to work in space. _ T1: Observe and analyze Task 1 Read the following sentences and focus on the italicised infinitives. Then figure out their functions and meanings. .in order that I could fly airplanes as a fighter pilot. .in order that he/she can work in spac

4、e. 不定式不定式to do表目的表目的3. First of all, you must be intelligent enough to get a related college degree. _ 4. Some scientists were determined to help humans realise their dream to explore space._ 5. On 12 April 1961, Yuri Gagarin became the first person in the world to go into space._ so that you could

5、get a related college degree. their dream which was to explore space. 不定式不定式to do表结果表结果 the first person in the world who went into space. 不定式不定式to do作定语作定语T1: Observe and analyze Task 2 Find more examples from the text and figure out their functions.1. People have always wanted to learn more about

6、space, and scientists work hard to find answers. 2. They make vehicles to carry brave people into space to find out the secrets of the universe. 3. They also really wish to discover other planets that are suitable enough to support life. 4. Americas NASA space agency launched Voyager 1 on 5 Septembe

7、r 1977 to study deep space. (adverbial)(adverbial)(adverbial)(adverbial)T2: Find and analyze Task 2 Find more examples from the text and figure out their functions.5. These disasters made everyone sad and disappointed, but the desire to explore the universe never died. 6. China became the third coun

8、try in the world to independently send humans into space in 2003. 7. Then Shenzhou 6 and 7 completed a second manned orbit and the first Chinese spacewalk, followed by the vehicle Jade Rabbit being sent to the moon to study its surface. 8. After that, China launched the Tiangong 2 space lab into spa

9、ce and Tianzhou 1 to dock with it. (attribute)(attribute)(adverbial)(adverbial)T2: Find and analyze Task 2 Find more examples from the text and figure out their functions.9. This signalled one step further in Chinas plan to establish a space station in the future.10. More recently, China has sent Ch

10、ange 4 to explore the surface of the far side of the moon to make measurements and observations. 11. Europe, the US, and China all have plans to further study and explore planets like Mars and Jupiter.(attribute)(adverbial)(attribute)T2: Find and analyze Examples:1. In 2003 Yuri Malenchenko became t

11、he first person who got married in space._2. In space, astronauts collect all dirty water so that it can be recycled for later use._ the first person to get married in space. collect all dirty water so as to recycle it for later use. Task 3 Rewrite the sentences using infinitives or “in order to/so

12、as to”. Change the italicised parts accordingly. T2: Rewrite3. Mankind has always been curious about the universe and many people have dreamt that one day they would fly into space._4. Astronauts bones and muscles can get very weak in space due to the lack of gravity, so they need to exercise every

13、day, which will help them stay healthy._ 5. Astronauts have to use tape to stick everything down while working in space because everything would float off otherwise._6. During a spacewalk, astronauts have to move slowly so that they can keep their bodies under control._ . many people have the dream

14、to fly into space one day. so they need to exercise every day to/in order to/so as to stay healthy. while working in space to/in order to/so as to keep everything from floating off. move slowly to/in order to/so as to keep their bodies under control.不定式to do能使句意更明了,句式更丰富。T2: Rewrite Sending people t

15、o other planets or even beyond the solar system is not an easy goal _ (achieve). One of the problems is that the trip would take a very long time. For example, _ (use) the current technology, it would take over two years _ (get) to the closest planet, Mars, and back. Although light is the fastest th

16、ing _(know) in the universe, it could take more than four years to reach the nearest star system. Will scientists figure out a way _(store) sufficient food and water for the long journey? Is it possible to travel faster than light? No one knows the answers yet. However, space scientists never give u

17、p. They are experimenting with growing crops in space so as _(help) astronauts get enough food on longer journeys through space.to achieveusingto getknownto storeto helpT3: Practice1. After having succeeded in _ satellites into space, people wanted to know if it was safe for a human to go into space

18、. On 3 November 1957, a dog named Laika became the first living thing _ space. She was also the first one to die there.2. The USSR and the US both wanted to be the first to send a person to the moon. Later, the US succeeded, and Neil Armstrong became the first man _ onto the moon. During the first m

19、oon landing, astronauts had no vehicles _, so they had to explore the moon on foot. On the fourth mission _ on the moon, astronauts took a lunar vehicle so that they could explore places further away.send survive prevent reach breathe step land sleep use helpsendingto reachT3: Practice(P46)to stepto

20、 useto land3. Astronauts must wear spacesuits when they work in space because there is no air _ and it can be very cold outside the spacecraft. While _, they must attach themselves to something so as _ floating around.4. The accident on the Apollo 13 spacecraft resulted in a loss of oxygen, water, a

21、nd electrical power. The astronauts on board had to fight _. At the same time, Houstons Mission Control worked hard _ the astronauts return to Earth safely.send survive prevent reach breathe step land sleep use helpto breathesleepingto preventto surviveto helpT3: Practice(P46) 1 . Q: Why is Yang Liw

22、ei famous in China? A: Because he is _. (第一个进入太空的中国宇航员).2 .Q: How do you feel about the film 2001: A Space Odyssey? A: Im afraid the film is _. (太长太乏味而无法看完). 3. Q: Why was the Russian space station Mir (和平号空间站) brought down out of orbit? A: One of the reasons is that Mir was too old and _. (不再是安全的居所

23、).the first Chinese astronaut to go into spacetoo long and boring for me to finishno longer a safe place to live inT3: Practice(P80)4. Q: Would you like to travel into space some day? A: Yes, and I want to become _. (登陆火星的第一个中国人).5. Q: Could you provide a simple introduction to how space rockets wor

24、k? A: Im afraid the whole process is_. (太复杂了,无法用几句话解释清楚).the first Chinese to land on Marstoo complicated to explain in a few wordsT3: Practice(P80)1.The space shuttle (航天飞机) was created as a reusable launch vehicle _astronauts and other equipment into space and back again. The shuttle looks like an

25、 ordinary plane but it has a cargo bay (货仓) that is large enough_ a satellite. 2. Space probes (航天探测器) are often sent to places that are too far away or too dangerous for a human_foot in. For example, in 1977, the Voyager 1 space probe was sent _ pictures of the planets Saturn and Jupiter.3. The Int

26、ernational Space Station was too big _on Earth and _ into space, so different countries worked together and built about 100 modules (分离舱). Afterwards, these modules were joined together in space _ living quarters, laboratories, and other equipment for astronauts _for months. 4. As the first woman _t

27、o make a trip into space, Tereshkova felt lucky and proud. When the great day finally came, she was almost too excited _ asleep. to carryto holdto setto takehold build provide live set carry select fall take launchT3: Practice(P81)to buildto launchto provideto liveselectedto fall On 17 October 2016,

28、 Chinas space agency launched the Shenzhou 11 space vehicle _(connect) with the Tiangong 2 space laboratory. The vehicle carried the astronauts Jing Haipeng and Chen Dong. The connection between Shenzhou 11 and Tiangong 2 took about two hours to be completed. The astronauts had many tasks _(do) in s

29、pace as part of their mission. Firstly, they had to float through a narrow 80-centimeter wide tube so as _(get) on board Tiangong 2. Once safely on board, the pair waved to the camera on Tiangong 2, _(send) greetings to everyone back home. Then they performed various experiments. For example, they g

30、rew rice in space. They also gave themselves medical check-ups _ (see)how their bodies were affected by _(be) in space. Jing Haipeng and Chen Dong finally returned to Earth 30 days later, _(make) their space mission the longest such mission by Chinese astronauts to date.to connectto doto getto sendto seebeingmakingT3: Practice(P81)THANKS

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