人教版高一英语必修三Unit4全套课件.ppt

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1、Lead-in,The background picture is the whole cosmoskzms/universe().,What do you know about it?,大家好,1,Lead-inThe background picture,Its the Galaxy(银河系).,大家好,2,Its the Galaxy(银河系).大家好2,Theyre planets(行星)and stars(恒星).,大家好,3,Theyre planets(行星)and stars(,Its the black hole.,大家好,4,Its the black hole.大家好4,

2、Its the solar system.Can you enumeratenju:mret(列举)the planets?,，,大家好,5,Its the solar system.，大家好5,History of the Universe,大家好,6,History of the Universe大家好6,Unit 4,Astronomy:the Science of the Stars,大家好,7,Unit 4Astronomy:大家好7,Science Subjects,Physics ChemistryBiologyGeology Mathematics,MedicineBioche

3、mistryGeophysicsAstronomy,Warming up,大家好,8,Science SubjectsPhysics Med,Hawking and his theories,大家好,9,Hawking and his theories大家好9,Can you name them in English?,大家好,10,Can you name them in English?大,Mercurym:kjri,Venusvins,Earth,Mars,Jupiterdu:pt(r),Saturnst:n,Uranusjrns,Neptuneneptju:n,Plutoplu:tu,

4、The Sun,The Solar System,大家好,11,MercuryVenusEarthMarsJupiter,A Black Hole,大家好,12,A Black Hole大家好12,The Moon,大家好,13,The Moon大家好13,The Big Bang,大家好,14,The Big Bang大家好14,Atom,大家好,15,Atom大家好15,The Globe Our Earth,大家好,16,The Globe Our Earth大家好16,Atmosphere(大气层),大家好,17,Atmosphere(大气层)大家好17,Reading,1.Fast

5、Reading,and analyze its structure.Write down the main idea for each paragraph.,大家好,18,Reading 1.Fast Reading,and a,Answer key for question 1:,Paragraph 1:A widely accepted theory about the formation of the universe.Paragraph 2:The formation of water for life.Paragraph 3:The importance of water for l

6、ife.Paragraph 4:The development of plants and animals on the earth.Paragraph 5:The arrival of humans and their impact on the earth.,大家好,19,Answer key for question 1:Para,3.Detailed Reading:Read the text loudly for a second time and then complete the fills in the following pictures according to the e

7、volution(进化，演变)order of life on the earth.,大家好,20,3.Detailed Reading:12345678大,Answer key for question 3:,small plants in water shellfish and all sorts of fish green plants on land insects(on land)amphibians(on land and in water)forests reptiles(on land)dinosaurs(on land)mammals(on land),大家好,21,Answ

8、er key for question 3:sma,Explanation,天文学 n.Astronomy is the scientific study of the stars,planets,and other natural objects in space.,1.astronomy,相关短语radar astronomy 雷达天文学 radio astronomy 电波(无线电)天文学,大家好,22,Explanation天文学 n.1.astronom,2.star,(1)名词(pl.stars)1）星,恒星;(日、月等)天体;星形物;2）星号;(表示等级等的)星级;星形勋章,如：

9、While in Taipei she stayed at a four star hotel.她在台北逗留期间住在一家四星级旅馆。3）命运;星象 4）(电影、体育等的)明星,杰出人物 His wish to become a football star has come true.他想当足球明星的愿望实现了。,大家好,23,2.star(1)名词(pl.stars)大家好23,(2)动词（及物）(starred;starred;starring)1）用星形物装饰 2）用星号标出 3）使成明星,由.主演 Yesterday we saw a film starring Charlie Chap

10、lin.昨天我们看了一部查理卓别林主演的电影。3.动词（不及物）(starred;starred;starring)1）当明星,主演。如：She has starred in some thirty films.她主演过大约30部影片。,star,大家好,24,(2)动词（及物）(starred;starred;,2）表现出色。如：He didnt star at that job.那份工作他干得并不出色。(4)形容词 1）星的;星形的 2）明星的,主角的 3）出色的,优秀的。如：Tony is the star player on our team.托尼是我队的主力。,star,大家好,25

11、,star大家好25,3.globe,（1）名词(pl.globes)1)球;球状物 2)地球仪;地球。如：This plant can grow in many parts of the globe.这种植物能在地球上的许多地方生长。3)眼球（2）动词（不及物）(globed;globed;globing)成球状（3）动词（及物）(globed;globed;globing)使成球状,大家好,26,3.globe（1）名词(pl.globes)大家,Then are you clear now about the evolution of life?,大家好,27,Then are you

12、clear now,When the dust settled into a solid globe,the earth was so violent.,大家好,28,When the dust settled into a s,The Evolution of Life on the earth,i:vlu:n,plzk,meszk,si:nzuik,大家好,29,4.6 billion years ago3 billion,大家好,30,大家好30,Shellfish,大家好,31,Shellfish大家好31,Amphibian,大家好,32,Amphibian大家好32,Reptile

13、 Dinosaur,大家好,33,Reptile Dinosaur大家好33,大家好,34,大家好34,Primitive(原始的)People,大家好,35,Primitive(原始的)大家好35,Language Points,1.What it was to become was uncertain(when the dust settled into a solid globe).,be to do的用法(1)be to do.用于第一人称疑问句中，表示征求对方意见。如：Am I to go on with the work？要我继续这项工作吗？What are we to do ne

14、xt？我们下一步该怎么办？(2)表示按约定、计划，或即将发生的动作，这是将来时的一种用法。如：They are to pay a visit to the teacher together at 10 am.tomorrow.他们约定明天上午10点一起去看这位老师。,be,be,大家好,36,Language Points1.What it was,We are to meet at the station at four this afternoon.我们今天下午4点在车站见面。(3)表示必须或应该，在意义上等于must，should，ought to 或have to。如：You are

15、to finish the work before five this afternoon.你们必须在今天下午五点以前完成这项任务。This medicine is to be taken three times a day.这种药一天要服三次。(4)用来表示注定要发生或不可避免要发生的事。如：His theory was to change the views on the universe.,大家好,37,We are to meet at the station,Language Points,1.It exploded loudly with fire and rock,which w

16、ere in time to produce carbon,nitrogen,water vapour and other gases,which were to make the earths atmosphere.,loud,aloud,loudly 这三个副词词义很接近，但含义有所不同。aloud 的意思是“出声地、高声地”，强调能让人听得见。如：Read aloud so that we can all hear you.读大点声，以便我们大家都能听见你。They are shouting aloud.他们在大声感叫。,大家好,38,Language Points1.It explod

17、ed,loud 意思是“大声地、高声地、响亮地”，强调声音响亮。常与动词speak,talk,say,laugh等连用。如：Dont talk so loud.讲话声音不要这么大。Facts speak louder than words.事实胜于雄辩。loudly 的意思是“高声地”，有时可与loud通用，但含有“喧闹”的意味。如：Someone knocked loudly at the door.有人在大声敲门。Dont talk so loudly/loud.说话声音不要这么大。在现代英语中有时在并不喧闹的场合也用loudly.如：Will you please read the te

18、xt loudly?你能不能大声读这篇课文？,大家好,39,loud 意思是“大声地、高声地、响亮地”，强调声音响亮。常,explode1)（使某物）炸开，爆炸。如：The firework exploded in his hand and he was hurt seriously.,大家好,40,explode大家好40,2)（指感情）激发。如：I was frightened when she exploded into loud laughter.3)（指人口）突然或迅速增加。如：Now it is not easy to find jobs with the exploding po

19、pulation.explosion n.爆炸（声）explosive adj.爆炸性的，易爆炸的 n.炸药，爆炸物in time(for sth./to do sth.):最终；及时，如She will be back in time to prepare dinner.她会及时赶回来准备晚饭。,大家好,41,2)（指感情）激发。如：大家好41,3.What many science believe is that the continued presence of water allowed the earth to dissolve gases and acids which are h

20、armful to the plants into the oceans and seas.,allow v.允许、许可、容许allow+n./pron./doing allow sb.to do sth.be allowed to do sth.,大家好,42,3.What many science believe i,2.continuous 连续不断的（强调一个动作没有间断过）continual 反复的，频繁的（强调一个动作在某个时期反复出现）continued和continuing可以互换，都表示“连续不断的”“继续不变的”，但是它们只能用于名词前。总的来说，其差异正逐渐消失，特别是c

21、ontinual亦含有continuous相同的意义，尤指不愉快的事：Life was a continual struggle for them.生活对他们来说是不断的挣扎。,大家好,43,2.continuous 连续不断的（强调一个动作没有间断过,Present1 presence n.出席，到场，存在形容词 a.1.出席的,在场的How many people were present at the meeting?到会的有多少人?2.现在的,当前的Im not at all satisfied with the present situation.我对目前的情况一点都不满意。,大家好

22、,44,Present1 presenc,名词 n.1.现在,目前There is no time like the present.机不可失,时不再来。present2名词 n.1.礼物,赠品CHe often gave his neighbors kids little presents.他常常送些小礼物给邻居的孩子。,大家好,45,名词 n.1.现在,目前There is no ti,Present3 presentation n.授予，颁发，呈现及物动词 vt.1.赠送,呈献(+to/with)They presented him with a bunch of flowers.他们献

23、给他一束鲜花。2.引起(问题),造成(困难)(+to/with)All this presented new safety problems.所有这些都造成了新的安全问题。,大家好,46,Present3 presentation n,3.提出,提交,呈递(+to)Some 300 papers were presented at the conference.会上提出了大约三百篇论文。4.呈现;描述;出示(+to)He had to present a smiling face though heavy-hearted.虽然忧心忡忡,但他还得露出一副笑容。,大家好,47,3.提出,提交,呈递

24、(+to)Some 300 pap,My father doesnt allow smoking at home.In fact he doesnt allow us to smoke anywhere at any time.父亲不允许在家里吸烟。实际上，他不允许我们在任何地方任何时候吸烟。Are we allowed to use the computer?我们可以用电脑么？be harmful to 对有害 do harm to sb.=do sb.harm 伤害某人，对某人有害处 1)Pollution is especially harmful to animals.2)Smokin

25、g will do you a lot of harm.,大家好,48,My father doesnt allow smokin,4.They produced young generally by laying eggs.,Its generally believed that一般认为generally speaking 一般而言，概括来说 1)Its generally believed that girls work harder than boys do.2)Generally speaking,women cry more easily than men.by doing用于说明做

26、某事的手段、方式。如：I dont think she can help him by just giving him money.我认为她光靠给钱是帮不了他的。,大家好,49,4.They produced young general,5.They are putting too much carbon dioxide into the atmosphere,which prevents heat from escaping from the earth into space.,阻止某人做某事:prevent sb.(from)doing sth.stop sb.(from)doing st

27、h.keep sb.from doing sth.1)We must prevent them from making trouble.2)You should prevent the child from injuring himself.If nothing prevents,如果没有什么阻碍的话,大家好,50,5.They are putting too much c,6.Whether life will continue on the earth for millions of years to come will depend on whether this problem can

28、 be solved.,depend on:相信，信赖,依靠,依赖,视而定，取决于,Depend on it.没问题，请放心（句末或句首）That/It(all)depends.那得看情况而定.1)Depend on it,youll succeed.2)He may support me,but it depends.,大家好,51,6.Whether life will continue,宾语从句可以分为三类(1).动词的宾语从句1.1 大多数位于动词后面Eg：I hope you can join us in the game.1.2 有些是“动词+副词”后Find out/point

29、out/figure out/turn out/figure outEg：Can you figure out what the poet really means in this poem?1.3 有些动词短语后面Make sure/make up ones mind/keep in mindEg;we should keep in mind that sports can be a great boost to our health.,大家好,52,宾语从句可以分为三类大家好52,(2)it 作形式宾语代替宾语从句第一类动词;find/feel/think/consider/make/be

30、lieve/guess/suppose/assume等后面有宾语不足语时，需要用it 作形式宾语而将that引导的真正的宾语从句后置。Eg：I think it necessary that we do some sporting.第二类动词 带宾语从句时需要在从句前面加it。这类词：hate/like/dislike/appreciate/depend on/see to/Eg:I hate it when they talk without considering others feeling.,大家好,53,(2)it 作形式宾语代替宾语从句大家好53,7.I cheered up im

31、mediately and floated weightlessly around in our spaceship cabin watching the earth become smaller and the moon larger.,cheer up 欢呼；喝彩；感到高兴；使高兴。如：The crowd cheered up when they saw the teams arrive.观众看到运动队进场时欢声雷动。He took her to the concert to cheer her up.为使她高兴起来，他带她去听音乐会。,Astronomerstrnm(r)astronau

32、tstrn:t,大家好,54,7.I cheered up immediately an,watch do/doing 观看；注视。如：We watched the sun setting behind the trees.Evening fell.我们看着太阳一点点地落在树后，夜幕降临了。Every day as they watched the plant grow,their hearts were filled with hope.他们每天都在观察这棵植物生长，心里充满了希望。,Weigh1.表示“称的重量”,是及物动词,如：He weighed the fish.他称了这条鱼.Do

33、you often weigh yourself?你经常称体重吗?2.表示“重(多少)”,是不及物动词He weighs 60 kilos.他体重60公斤.The meat weighs five pounds.这肉重五磅.,大家好,55,watch do/doing 观看；注视。如：Wei,2.比较 by weight/in weight：前者表示“按重量”,后者表示“重量上”.如：Do they charge carriage by weight?他们是按重量收取运费吗?Its smaller in size but greater in weight.它体积比较小,但分量比较重.3.对重

34、量提问,特殊疑问词用How much?or How heavy?What is the weight of.How much it weighs?What=how much do you weigh?What is the weight of the baby?,大家好,56,2.比较 by weight/in weight：前者表,倍数的表达方式共：四种1.表示“几倍大小（长短；数量）”,由“倍数+the size（length,amount）”结构组成.例如：The earth is forth-nine times the size of the moon.地球是月亮的49倍大.2.表示

35、“比大几倍”,由“倍数+形容词（副词）比较级”结构组成.例如：This box is three times bigger than that one.这个盒子比那个盒子大三倍.The grain output is 8 percent higher this year than that of last year.今年比去年粮食产量增加8%.,大家好,57,倍数的表达方式共：四种1.表示“几倍大小（长短；数量）”,3.表示“是倍”,由“倍数+as+形容词+as+”结构组成.例如：Our factory is twice as big as theirs.我们的工厂是他们的三倍.I have

36、three times as many as you.我有你三倍那么多.注 一倍用once,两倍用 twice.4、还可以用by+倍数,表示增加多少倍.The production of grain has been increased by four times this year.今年粮食产量增加了4倍.,大家好,58,3.表示“是倍”,由“倍数+as+形容词+as,9.We watched,amazed as fire broke out on the outside of the spaceship as the earths gravity increased.,此处的amazed是

37、过去分词作状语。过去分词经常可以作状语，这是一种特定用法。如：He came in unnoticed.他神不知鬼不觉地走了进来。Many heroes lie buried in the churchyard.许多英雄埋葬在教堂的墓地里。break out（战争，争吵，疾病等）爆发。如：A quarrel broke out suddenly at midnight.半夜，（他们）突然大吵起来。,大家好,59,9.We watched,amazed as fire,8.“Oh dear,”I cried,“walking does need a bit of practice now tha

38、t gravity has changed.”,Now that:既然，由于。如：Now that everybody is here,we can begin the meeting.,大家好,60,8.“Oh dear,”I cried,“walkin,10.the Paleozoic era:古生代，是地质时代的第三个代（第一、第二代分别是太古代和元古代）。约5.44亿年前至2.48亿年前.the Mesozoic era:中生代，包括：三叠纪、侏罗纪、白垩纪。the Cenozoic era:新生代，约开始于6500万年前，现仍在持续。,11.Big Bang:宇宙大爆炸理论,大家好,

39、61,10.the Paleozoic era:古生代，是地质,Learning about Language,1.Words,astronomy,atmosphere,system,violent,solid,explode,carbon,dioxide,oxygen,surface,planet,harmful,development,spread,method,depend,exist,presence,telescope,disappoint,disappointed,publish,publishing,gravity,force,gradually,cheer,float,mass

40、,大家好,62,Learning about Language 1.Wor,Use the correct prefix or suffix for each word.Write out the new word and explain the difference between the two.,presence,violence,confidence,difference,patience,uncertain,unfair,unpaid,unlike,unkind,-(en)ce,un-,大家好,63,Use the correct prefix or suff,cultural,gl

41、obal,universal,agricultral,mathematical,artist,phsicist,chemist,biologist,scientist,-al,-ist,大家好,64,cultureglobeuniverseagricultur,2.Expressions,solar system,in time,now that,prevent.from,depend on,cheer up,get the hang of,break out,lay eggs,give birth to,in ones turn,carbon dioxide,watch out,block

42、out,大家好,65,2.Expressionssolar system,in,Complete each of the sentences with a suitable word or phrase in the correct form.,surface,explode,develop,prevent,float,spread,violent,astronomy,force,publish,disappoint,solid 1.The _ of gravity makes things fall to the earth.2.The robbers kicked the door _ a

43、nd broke into the stars house.3.Nothing can separate the two,because they have a _ friendship foundation.4.In World War II,two atomic bombs _ in Japan,killing a large number of people.5.With the _ of our countrys economy,peoples living standard has been greatly raised.,force,violently,solid,exploded

44、,development,大家好,66,Complete each of the sentences,6.More than 70%of the earths _ is covered by water.7.In the last few years the city has _ out rapidly in all directions.8.That he failed the examination _ his lover very much.9.They _ the canoe out into the middle of the river.10.Mark Twain _ a lot

45、of popular novels in that _ firm.,spread,disappointed,floated,surface,published,publishing,大家好,67,6.More than 70%of the earth,1.他以前是靠画画为生的。He used to _his living _.2.爆竹在他手里爆炸了，他伤得很严重。The firework _ and he hurt seriously.3.乡村生活与都市生活是非常不同的。Country life is_ city life.4.玛丽之所以没有通过这次考试，是因为她此前病了两个星期。Mary _

46、 in the exam,_she had been ill for two weeks.,Complete the following sentences.,大家好,68,1.他以前是靠画画为生的。Complete the foll,5.第二次世界大战是年爆发的。World War II _in 1939.6.我担心是否伤害了她。I worry _ I hurt her feelings.7.为使她高兴起来，她丈夫带她去听音乐会。Her husband took her to the concert _.8.他们乘坐宇宙飞船穿越太空到月球上去。They _ to the moon in a

47、spaceship.9.天上有朵朵白云。There were _ white clouds in the sky.,大家好,69,5.第二次世界大战是年爆发的。大家好69,1.He used to make/earn his living by painting.2.The firework exploded in his hand and he hurt seriously.3.Country life is quite different from city life.4.Mary failed in the exam.This was because she had been ill f

48、or two weeks.5.World War II broke out in 1939.6.I worry about whether I hurt her feelings.7.Her husband took her to the concert to cheer her up.8.They traveled through space to the moon in a spaceship.9.There were masses of white clouds in the sky.,Answer Key:,大家好,70,1.He used to make/earn his li,3.

49、GrammarNoun Clauses as the subject,做主语用的名词性从句，因其在复合句中做主语，又称主语从句(Noun Clauses as the subject)，引导主语从句的有从属连词that、whether，连接代词who、what、which，连接副词when、where、how、why等。1.连接词：1）从属连词：that，whether等.that 引导主语从句只起引导作用，本身无实际意义，在主语从句中不充当任何成分，但不能省略。That she left him cut him to the heart.That he will come is certai

50、n.,大家好,71,3.Grammar 做主语用的名词性从句，因,由whether及其他连词引导的主语从句放在句首，句后都可。Whether it will please them is not easy to say.It doesnt matter too much whether shes coming or not.2)连接代词who，what，which,whatever,whichever,whoever What seems easy to some people seems difficult to others.Which side will win is not clear