Unit 4 第四课时Discovering useful structures -ppt课件--（2022）新人教版(2019新版)高中英语必修第三册.pptx

1、infinitives as attribute and adverbial.infinitives as attribute and adverbial.Jan.1,2022 Three Chinese astronauts in space station Tiangong helda space-Earth video chat with students in Beijing,Hong Kong and Macao.The astronauts shared their space dreams and aspirations(抱负).Infinitives as attributes

2、Infinitives as attributes:1.I have no desire to write.2.The conference to take place in Shanghai next week is of great importance.3.There was something to be done.4.I have a lot to say.5.The Smiths were the first to arrive.6.I have no idea where to go.Infinitives as attributes:Infinitives as attribu

3、tes:Exercises:rewrite the sentences using infinitives.Change the italicized(斜斜体体)parts accordingly.Textbook P42 2.(1)(3)1.In 2003 Yuri Malenchenko became the first person In 2003 Yuri Malenchenko became 3.Mankind has always been curious about the universe and many people have Mankind has always been

4、 curious about the universe and many people have.Exercises:complete the following sentences.1.However,some scientists were determined to help humans realize _(他们探索太空的梦想).课文P402.China became _ _(世界上第三个独立发送人类进入太空的国家)in 2003.课文P413.This signaled one step further in _(中国建设太空站的计划)in the future.课文P414.He

5、thinks sending people to Mars will allow us to learn a lot-for example,about _(人类生存的能力)in a very different environment.Workbook P825.its project is giving people worldwide _ _(成为史上第一批永久居住在火星的人类的机会).Workbook P82their dream to explore spaceChinas plan to establish a space station the third country in

6、the world to independently send humans into spacethe ability of humans to live the chance to be part of the first human crew ever to live on Mars for good Infinitives as adverbialsInfinitives as adverbials:to modify or describe a verb or a sentence.Infinitives as adverbials:to modify or describe a v

7、erb or a sentence.Infinitives as adverbials:to modify or describe a verb or a sentence.Exercises:rewrite the sentences using“in order to/so as to+do”.Change the italicized(斜体斜体)parts accordingly.Textbook P42 2.(2)(4)(5)(6)2.In space,astronauts collect all dirty water In space,astronauts collect all

8、dirty water 4.Astronauts bones and muscles can get very weak in space due to the lack of gravity,so they need to exercise every day,Astronauts bones and muscles can get very weak in space due to the lack of gravity,so they need to exercise every day Exercises:rewrite the sentences using“in order to/

9、so as to+do”.Change the italicized(斜体斜体)parts accordingly.Textbook P42 2.(2)(4)(5)(6)5.Astronauts have to use tapes to stick everything down while working in space Astronauts have to use tapes to stick everything down while working in space 6.During a spacewalk,astronauts have to move slowly During

10、a spacewalk,astronauts have to move slowly 1.people have always wanted to learn more about space,and scientists _(正在努力寻求答案).课文P402.They make vehicles to carry brave people into space _(以求发现宇宙的秘密).课文P403.For example，Americas NASA space agency launched Voyager 1 on 5 September 1977 _(以研究太空深处).课文P404.M

11、ore recently，China has sent Change 4 to explore the surface of the far side of the moon _(进行测量与观察).5.Many experts think the projects cost of US$6 billion is _(太低了很难保证计划成功).Workbook P82work hard to find answersto find out the secrets of the universeto study deep spaceto make measurements and observat

12、ionstoo low for it to be successfulConclusion:Infinitives as attribute and adverbial句法功能句法功能用法归纳用法归纳定语定语1.多置于被修饰词的后面后面；2.多表示尚未发生尚未发生的动作；3.多用于修饰：抽象抽象名词、不定代词不定代词、序序数词、形容词最高最高级级、或有特殊特殊词语修饰的名词；4.如果to do后面是动词短语，注意保留相应介词介词。状语状语1.目的目的状语：常用结构 to do;in order to do;so as to do 等；2.原因原因状语：常用结构“sb.+be+adj.+to d

13、o”；3.结果结果状语：常用结构 “too.to”;“so/such as to do”;“only to do”等。Infinitives as attribute and adverbialI.Complete the passage with the correct forms of the verbs in brackets.Sending people to other planets or even beyond the solar system is not an easy goal _(achieve).One of the problems is that the trip

14、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 thing _(know)in the universe,it could take more than four years to reach the nearest star system.to achieveusingto getknownAttribu

15、te 定语Adverbial 状语Attribute 定语Adverbial 状语Attribute 定语am delighted to knowTo become an astronautto get a related college degreeto stay healthyto enter spaceto explore the universeAdverbial 状语Adverbial 状语Adverbial 状语Attribute 定语Attribute 定语1).Why are some people against space exploration?2).What has space exploration done for food production?3).How does space exploration benefit the products that people use nowadays?4).What did the pictures of Earth from space make people realise?