Unit 1 Science and Scientists Discovering useful structuresppt课件-（2022新）人教版高中英语选择性必修第二册.pptx

1、Period 3 Discovering useful structuresThe Predicative ClausesUnit 1 Science and Scientists1. Enable the Ss to master the usage of predicative in this unit.2. Enable the Ss to use the predicative patterns flexibly.3. Train the Ss to apply some skills by doing the relevant exercises. Task 1: Underline

2、 all the examples in the reading passage where noun clauses are used as the predicative. Then state their meaning and functions. (P5 textbook) 1.One theory was that _ 2. Another was_ 3. The truth was_that cholera was caused by an infection from germs in food or water.bad air caused the disease.that

3、the water from the Broad Street pump had been infected by waste.S+V+Plink verbPredicative 表语Predicative is used _ the link verb.A sentence which is used as predicative is Predicative Clause表语从句.be动词;感官动词：sound, taste, smell, look, feel;表示变化的词：go, get, turn, become.behindIt look as ifIt turned out th

4、atGrammar focus:Leading words, functions and examples (P7创新设计grammar部分） 从属连词： that, whether because as if/though 连接代词： who(ever), whom(ever), whose, what(ever),which(ever) 连接副词： when, where, why, how Task2: Answer the following questions using the information from the reading passage as well as the

5、predicative clauses. (P5 textbook) EXAMPLE What Was it that John Snow showed to the world? What John Snow showed to the world was how cholera could be overcome. 1. What was Snows discovery in two particular streets in London? Snows discovery in two particular streets in London was that_. 2. What was

6、 Snow determined to find out during the 1854 outbreak of cholera in London? What Snow was determined to find out was why _. 3. What were the exact places(Snow marked on the map? ) The exact places Snow marked on the map were where_. 4. What was the finding that Snow announced? Snows finding was that

7、_.more than 500 people died in ten days.the cholera outbreak was so severe that more than 500 people died in ten daysall those who died had livedthe pump water carried cholera germs Task 3: David is talking to Maria about their scientific research project. First complete Davids lines (A-E, using the

8、 words in the box. Then put Davids lines in the correct order and practice the conversation. (P5 textbook) A: Absolutely ! You may not believe it, but that was _happened at the initial stage of our groups research on developing a vaccine for malaria. B:Yes, it is. And it seemed _ all the theories we

9、re useful, but the fact was _ we couldnt persuade one another that one theory was better than another. C:Exactly The problem was not about _ all our theories were equally good, but in deciding _ theory to depend upon. D:We realised that what we cared about was not _ aspect we needed to develop a the

10、ory in, but rather _ we can reduce the cost of a vaccine without reducing its effect! E: Youre right. At last, we became focused on the key issue, which was _we had to carry out the research in the first place. Maria: This mix of theory and data is one of the key characteristics of what we call scie

11、nce. David: _ Maria: With your theoretical framework? David:_ Maria: Deciding on a theory is definitely of critical importance. David:_ Maria This was when you should have calmed down and got down to doing some sold work. David:_ Maria: So what happened in the end? David:_ Task 3: David is talking t

12、o Maria about their scientific research project. First complete Davids lines (A-E, using the words in the box. Then put Davids lines in the correct order and practice the conversation. (P5 textbook)Task 4: Practice makes perfect! (P8创新设计grammar部分练习） 补全句子补全句子 The bottom line is _ 底线是我不应该对我的孩子们撒谎。底线是我

13、不应该对我的孩子们撒谎。 The question is _ 问题是这部电影是否值得看。问题是这部电影是否值得看。 Now _ she had known Millie for years. 现在看起来好像她认识米莉已有好多年了。现在看起来好像她认识米莉已有好多年了。 My advice is that you _ as often as possible. 我的建议是你尽可能经常地练习说英语。我的建议是你尽可能经常地练习说英语。that I shouldnt lie to my kidswhether the film is worth seeingit seems as though/if

14、 (should) practise speaking English Task 4: （P8创新设计grammar部分练习:1. 单句语法填空） 1I drove to Zhuhai for the air show last week. Is that _ you had a few days off? 2One reason for her preference for city life is _ she can have easy access to places like shops and restaurants. 3What the doctors really doubt i

15、s _ my mother will defeat the serious illness. 4You are saying that everyone has already had equal rights, and this is _ I disagree. 5It is raining so hard and it looks _ it will last long. 6That Jimmy won the presidency once again was _ many people hadnt expected.whythatwhetherwherewhatas if/though

16、Task 4: （P8创新设计grammar部分练习:1. 单句语法填空） 7How could we live without the Internet? Thats _ most of us keep in touch with each other. 8No one dislikes having weekends. Thats _ on Saturdays and Sundays we can do whatever we like. 9As is well known to all, the Spring Festival is _ the family are reunited a

17、nd celebrate the new year. 10He is not the best candidate for the position. So the problem is _ we can get to replace him. 11I read about it in some book or another, but what I dont know is _ book it is.howbecausewhenwhichwho/whomTask 4: （P8创新设计grammar部分练习:2. 补全句子） 1My suggestion is _ 我的建议是我们应该告诉他。我

18、的建议是我们应该告诉他。 2The question is _ 问题是我们应当相信谁。问题是我们应当相信谁。 3The problem is _ 问题是我们如何找到他。问题是我们如何找到他。 4The question is _ 问题是他什么时候能到。问题是他什么时候能到。 5This is _ 这就是我想要的。这就是我想要的。that we should tell himwho/whom we should trusthow we can find himwhat I wantwhen he will comeTask 4: （P8创新设计grammar部分练习:3. 语法填空） One o

19、f the premier medical 1._ (scientist) in the 21st century is Zhong Nanshan. Born in 1936 and 2._ (graduate) from Peking University Health Science Center, this ordinary but great man has been working in the medical field for over 40 years. He is a good doctor in the patients eyes and 3._ kind medical

20、 professor in his students as well.scientistsgraduatingaTask 4: （P8创新设计grammar部分练习:3. 语法填空） In 2003, SARS broke 4._ in China and across the globe. Zhong Nanshan not only led but also 5._ (take) an active part in the battle against SARS. At that time most people had no 6._ (nature) defense against th

21、e disease. Dangerous 7._ it was, Zhong Nanshan worked hard treating SARS patients. Meanwhile he underlined the fact 8._ teamwork among nations could save lives. Through 9._ (they) several months hard work, Zhong Nanshan and his workmates achieved remarkable achievements. Soon SARS 10._ (wipe) out. In 2020, he won the Medal of the Republic.outtooknaturalas/thoughthattheirwas wiped