Unit 4 Warming Up&Listening and speaking ppt课件-（2021新）人教版高中英语必修第三册.pptx

1、Listening and speakingUnit 4Space ExplorationWhat do you know about Space Exploration?Space Explorationvaluesignificancefamous astronautsachievementdefinitionhistoryWhat is Space Exploration? Space exploration, the investigation, by means of crewed and uncrewed spacecraft, of the reaches of the univ

2、erse beyond Earths atmosphere and the use of the information so gained to increase knowledge of the universe and benefit humanity.A brief history of space explorationWrite down the milestones and what happenedWhy do we explore space?Why do we explore the space?Make a as complete list of the reasons

3、as possible!How far have we gone in our dream to explore the space?How to become an astronaut?The first man going into the space: Yuri Gagarin, Soviet cosmonaut in 1961The first Chinese going into the space: Yang Liwei, Chinese astronaut, in 2003The first man landing on the moon: Neil Alden Armstron

4、g, American astronaut, Apollo 11 in 1967Can you name any famous astronauts?Ex. 2, 3 Page 38Ex. 2, 3 Page 382210141727038Ex. 4 Page 38Cultural Note:What do you know about the solar system?Do you know how many planets circle around the sun in our solar system？What are they?Cultural Note:Do you know an

5、y features of the planets?How many planets are there in the solar system?Which planet has the biggest satellites in the solar system?英语重音英语重音分为句子重音和词重音。分为句子重音和词重音。句子的重音句子的重音1.功能：体现句子的节奏感和韵律感，突出重点，使听者更容功能：体现句子的节奏感和韵律感，突出重点，使听者更容易理解。易理解。2.哪些词在句子中需重读哪些词在句子中需重读一般来说，在句子中需重读的词都是实词，比如名词、动词、一般来说，在句子中需重读的词都是

6、实词，比如名词、动词、形容词、副词、数词、代词等。不重读的多为虚词，比如冠形容词、副词、数词、代词等。不重读的多为虚词，比如冠词、连词、介词、感叹词等。词、连词、介词、感叹词等。例如：例如：The streets are wide and clean. I am so glad to see you again.3.虚词需要重读的情况虚词需要重读的情况(1)强调或突出某个虚词或强调或突出某个虚词或be动词时，应将其重读。动词时，应将其重读。Are you a student?Yes，I am.(2)介词在句首时往往要重读。介词在句首时往往要重读。On my way to school，my b

7、ike was broken.(3)be动词及助动词和动词及助动词和not结合时要重读。结合时要重读。Didnt I tell you yesterday?(4)句子末尾的句子末尾的be动词和助动词一般要重读。动词和助动词一般要重读。注意：注意：上文刚出现过的并且重读的单词，第二次提到时一般不再重读。上文刚出现过的并且重读的单词，第二次提到时一般不再重读。词重音词重音英语重读音节和非重读音节英语重读音节和非重读音节重读闭音节是指这个单词是重读音节。以一个或几个辅音字母重读闭音节是指这个单词是重读音节。以一个或几个辅音字母(r除外除外)结尾，而中间只有一个元音字母的音节，称为闭音节。结尾，而中间

8、只有一个元音字母的音节，称为闭音节。1.闭音节闭音节(1)单音节：音标中含有一个元音音素；单音节：音标中含有一个元音音素；(单音节全是省略了重读符号单音节全是省略了重读符号的重读音节的重读音节)(2)双音节：音标中含有两个元音音素；双音节：音标中含有两个元音音素；(会有重读符号标在某个需重会有重读符号标在某个需重读的音节前读的音节前)(3)多音节：音标中含有三个或三个以上的元音音素。多音节：音标中含有三个或三个以上的元音音素。(会有重读符号会有重读符号标在某个需重读的音节前标在某个需重读的音节前)2.开音节开音节(1)以发音的元音字母结尾的单音节。如：以发音的元音字母结尾的单音节。如：be，h

9、e。(2)以辅音字母以辅音字母(r除外除外)不发音的不发音的e结尾的音节。如：结尾的音节。如：make，like。在重读的开音节中元音字母按字母名。在重读的开音节中元音字母按字母名称读音。称读音。读下列对话，标出重读音节和非重读音节读下列对话，标出重读音节和非重读音节Mary：Is there something wrong, Karen?Karen：Its okay. Im being silly.Mary：Thats impossible. Youre never silly.Karen：Oh, but I am. Im silly all the time. Believe me! I locked my house keys in the house.Pronunciation: Page 39