Unit 1 Learning about language (ppt课件)-2022新人教版(2019)《高中英语》选择性必修第二册.pptx

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1、To practice the vocabulary.To learn to use predicative clauses.To make sentences using predicative clauses.Can you guess the meaning of this word?Pneumonoultramicroscopicsilicovolcanoconiosis 肺尘病肺尘病 pneumono-(of lung 肺的肺的),ultra-(to an extremedegree 非非常常),micro-(small 微小的微小的),scopic-(of viewing or o

2、bserving观察或注意的观察或注意的),silico-(of silicon 硅的硅的),volcano-(mountain that releases lava and ash 火山的火山的),coni-(of dust尘土的尘土的),-osis(state of a disease 疾病疾病)Now do you think it possible for you to guess the meaning of the word?It is a lung disease caused by inhaling very fine ash and sand dust.Find the wo

3、rds from the previous pages with the following prefixes or suffixes.Then add two words for each prefix or suffix,and explain their meanings.PrefixWordsPrefixWordsre-micro-dis-trans-reunite,revise,recover,react,recalldiscover,disappear,dislike,disablemicroscope,microwave,microphonetransform,transport

4、,transplant前缀前缀释义释义单词单词re-reviewreturndis-disagree micro-microscopetrans-transporttransnationalagainbacknotsmallchangeacross,over,beyondSuffixWordsSuffixWords-ory-ial-ion-ology contradictory,advisory,compulsoryinfection,contribution,extinction,reaction,congratulation,collectionsubstantial,official,f

5、inancial,commercialepidemiology,physiology,biology后缀后缀释义释义单词单词-orysensory-ioncollection-ialbeneficial-ologysociologyof or relating toaction or processhaving the characteristics of a branch of knowledge Make phrases by combining the words in the left box with those on the right.Then complete the sent

6、ences using these phrases.1.Many scientists _ the view that it is human activity that has caused global warming.2.He was to _ the accident because he drove on the wrong side of the road.subscribe suspect blame link subscribe toblame forto of for3.The man _ being behind the robbery was seen crossing

7、the street.4.Since heart disease is often _ our lifestyle choices,we need to make healthy living an important part of our lives.suspected oflinked tosubscribe suspect blame link to of for1.It is not unusual for an athlete to be well known while he is active,and quickly forgotten when his athletic ca

8、reer is over.2.Im sure shell deal with the changes very well because shes very adaptable.Replace the underlined parts with suitable words from the box.a household namehandleraw,a household name,substantial,statistics,handle3.He was ready to serve dinner to his friends when he realised that he had fo

9、rgotten to turn on the oven and the meat was not cooked yet.4.He used his great influence to change the thinking of the scientific community on this issue.5.Scientists have collected more data than expected to prove the theory.rawsubstantialstatisticsraw,a household name,substantial,statistics,handl

10、eBritish scientists believe they may have found a way to fight the common cold.It blocks a key protein in the bodys cells that is to _ for the spread of cold-causing virus.Targeting the host rather than the _ was a bit non-traditional but made sense because it was tricky to target the virus.Read thi

11、s passage about medical science.Complete it using the words below.blameinfection,multiple,decrease,severe,transform,proof,blame,substantialinfectionCold-causing virus are not only of _ kinds,they also _ rapidly,meaning they can quickly develop resistance to medicine.Researchers are working on making

12、 a form of medicine that can be taken directly into ones lungs,to _ the chance of side effects.Though these scientists have made _ advances in their research,further _ is needed to make sure such drugs are not so _ that they harm the body.multipletransforminfection,multiple,decrease,severe,transform

13、,proof,blame,substantialdecreasesubstantialproofsevereThe truth was that the water from the Broad Street pump had been infected by waste.predicative clauseUnderstanding science and pushing the boundaries of science is what makes me immensely satisfied.Bill GatesThe next major explosion is going to b

14、e when genetics and computers come together.Alvin TofflerThe doctor has been taught to be interested not in health but in disease.What the public is taught is that health is the cure for disease.Ashley MontaguResearch is what Im doing when I dont know what Im doing.Wernher von BraunChoose the Predic

15、ative Clause.判断表语的主要依据就是表语在系动词之后判断表语的主要依据就是表语在系动词之后。状态类:状态类:be动词,动词,seem,appear,keep,remain,stay感观类:感观类:look,smell,taste,sound,feel变化类:变化类:become,get,turn,grow,fall,come,goLinking verbsUnderline all the examples in the reading passage where noun clauses are used as the predicative.Then state their m

16、eaning and functions.One theory was that bad air caused the disease.Another was that cholera was caused by an infection from germs in food or water.It seemed that the woman liked the water from the pump so much that she had it delivered to her house every day.The truth was that the water from the Br

17、oad Street pump had been infected by waste.在复合句中作表语的从句叫做表语从句。在复合句中作表语的从句叫做表语从句。位于主句的系位于主句的系动词之后,对主语进行解释、说明,使主语的内容具体动词之后,对主语进行解释、说明,使主语的内容具体化。化。表语表语从句必须从句必须用陈述语序。用陈述语序。e.g.The question is who broke the vase.My suggestion is that we(should)start early tomorrow.表语表语从句的引导词从句的引导词连接词连接词连词连词在从句中不作成分在从句中不作成

18、分that,whether,as if,as though,because 连接代词连接代词在从句中作主语、在从句中作主语、宾语、表语、定语宾语、表语、定语what,who,whom,whose,which,whatever,whoever,whichever 连接副词连接副词在从句中作状语在从句中作状语when,where,how,why e.g.The trouble is that I have lost his address.The question is whether they will go by plane or by train.It sounds as if/though

19、 someone is knocking at the door.This is because the weather here is cold and wet.Thats why Tony got angry with me.He has become what he wanted to be ten years ago.The question is how we can find the suitable man for the job.表语从句要点归纳表语从句要点归纳1.表语从句一定要用陈述语序。表语从句一定要用陈述语序。e.g.One advantage of playing th

20、e guitar is that it can give you a great deal of pleasure.2.that引导表语从句引导表语从句时时,在在句中只起连接句中只起连接作用作用,不不充当充当句子成分句子成分,无无实际实际意义意义,一般一般不能省略。不能省略。e.g.The trouble is that I have lost his address.3.whether引导表语从句时,起连接作用,意为引导表语从句时,起连接作用,意为“是否,空间,是否,空间,到底到底”,在句中不作任何成分,在句中不作任何成分。if不能引导表语从句。不能引导表语从句。e.g.The questi

21、on is whether your uncle will offer help to us.4.连接连接代词代词ho,whom,whose,what,which,whoever,whatever,whichever等等除在句中起连接作用外,在从句中还充当主语、除在句中起连接作用外,在从句中还充当主语、宾语、表语或定语,本身具有词义。宾语、表语或定语,本身具有词义。e.g.My hometown is no longer what it used to be.The problem is who we can get to replace her.5.连接副词连接副词where,when,wh

22、y,how等除在句中起连接作用,等除在句中起连接作用,在从句中还充当地点、时间、原因、方式状语,本身具在从句中还充当地点、时间、原因、方式状语,本身具有词义。有词义。e.g.The question is when they will start the project.The question is how he did it.6.That is because.指原因或理由;指原因或理由;That is why.则指由于某种原因所造成的后果。则指由于某种原因所造成的后果。e.g.Bruce did not watch the game last night.That was because

23、 he had to help his little sister with her homework.Bob had seen the film before.That was why he did not see it yesterday.7.需使用虚拟语气的表语从句需使用虚拟语气的表语从句 在在advice,suggestion,order,proposal等表示建议、劝告、等表示建议、劝告、命令等含义的名词后的表语从句中,谓语动词需用命令等含义的名词后的表语从句中,谓语动词需用“should+动词原形动词原形”,should可省略。可省略。e.g.My suggestion is th

24、at we(should)start early tomorrow.Answer the following questions using the information from the reading passage as well as the predicative clauses.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 par

25、ticular streets in London?Snows discovery in two particular streets in London was that _ _.2.What was Snow determined to find out during the 1854 outbreak of cholera in London?What Snow was determined to find out was why _.the cholera outbreak was so severe that more than 500 people died in ten days

26、the outbreak of cholera had caused over 500 deaths within ten days3.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 _ _ _ _.all those who died had lived/all the dead people had li

27、ved the water pump was to blame for the spread of cholera/the pump water carried cholera germs/water from the Broad Street pump had been infected by wasteDavid is talking to Maria about their scientific research project.First complete Davids lines(A-E),using the words in the box.Then put Davids line

28、s in the correct order and practise the conversation.as if,that,what,who,when,how,why,whose,which,whetherA.Absolutely.You may not believe it,but that was _ happened at the initial stage of our groups research on developing a vaccine for malaria.whatB.Yes,it is.And it seemed _ all the theories were u

29、seful,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.as ifthatas if,that,what,who,when,how,why,whose,which,whetherwhich/what/whosewhetherD.We r

30、ealised that what we cared about was not _ aspect we needed to develop a theory 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.which/whathowas if,

31、that,what,who,when,how,why,whose,which,whetherwhyMaria:This mix of theory and data is one of the key characteristics of what we call science.David:Maria:With your theoretical framework?David:Maria:Deciding on a theory is definitely of critical importance.A.Absolutely.You may not believe it,but that

32、was what happened at the initial stage of our groups research on developing a vaccine for malaria.C.Exactly.The problem was not about whether all our theories were equally good,but in deciding whose theory to depend upon.David:Maria:This was when you should have calmed down and got down to doing som

33、e solid work.David:B.Yes,it is.And it seemed as if all the theories were useful,but the fact was that we couldnt persuade one another that one theory was better than another.E.Youre right.At last,we became focused on the key issue,which was why we had to carry out the research in the first place.Mar

34、ia:So what happened in the end?David:D.We realised that what we cared about was not which aspect we needed to develop a theory in,but rather how we can reduce the cost of a vaccine without reducing its effect!I.根据下面各句句意以及所给单词的首字母或汉语提示词,根据下面各句句意以及所给单词的首字母或汉语提示词,写出该单词的正确形式(每空一词)。写出该单词的正确形式(每空一词)。1.Our

35、 recent f_ are in line with those of an earlier study.2.At the i_ stage of the project not everyone had access to a computer.3.A scientist must produce s_ evidence in support of a theory.findingsinitialsolid 4.This work investigates existing _ _ _ _ _(思维能力的理论框架思维能力的理论框架).5.All v_ have some type of _

36、(蛋白质蛋白质)on the outside coat that recognizes the proper host _(细细胞胞).theoretical frameworks of thinking skillsviruses;protein cell(s)II.根据汉语意思补全下面句子。根据汉语意思补全下面句子。1.这就是她昨天请假的原因。这就是她昨天请假的原因。This is .2.看起来天要下雪。看起来天要下雪。It looks .3.这可能是因为他太年轻了。这可能是因为他太年轻了。It may be .4.问题是我们怎样找到一个适合这个工作的人。问题是我们怎样找到一个适合这个工作

37、的人。The question is .why she had a day off yesterdayas if it is going to snowbecause he is too younghow we can find a suitable man for the job5.我的建议是你应该好好利用你的时间。我的建议是你应该好好利用你的时间。My idea is .6.他已经变成十年前他想成为的样子。他已经变成十年前他想成为的样子。He has become .7.问题在于我们能不能在明天晚上完成这项工作。问题在于我们能不能在明天晚上完成这项工作。The question is .that you should make good use of your timewhat he wanted to be ten years ago whether we can finish our work tomorrow evening1.Review the words,expressions and sentences we have learned.2.Review Grammar.3.Finish the exercises in the workbook.

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