高中英语 Unit 3 computers(第1课时)课件 新人教版必修2 课件.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Unit 3 Computers,晨读狂背,类型,:,赞成反对型,典例,:,学生网上交友,模板,:,提出问题,Should students make friends on line?,赞成及理由,Some people say yes,saying the Internet helps make many friends.,Chatting on line,，,students can more freely express their feelings and opinions,and even get help in their foreign language studies.,来源,:,Z|xx|k.Com,反对及理由,Others,however,think students should not,for they think making friends on line is a waste of time,which should be spent more meaningfully on study.Besides,some students get cheated on line.,你的看法,In my opinion,students should place their study,health and safety before other things,and as for friendship,we can easily find it on our classmates and other people around us.,词汇过关,WWW.ZXXK.COM,一、单词拼写,根据音标和解释写出英语单词或汉语意思。,1._ n.,管,;,管子,;,电子管,2._ n.,火箭,3._ n.,目标,;,目的,;,球门,;(,进球,),得分,4._ n.,性格,;,特点,tube,rocket,goal,character,5._ n.,教练,6._ n.,病毒,7._ n.,网络,;,网状物,8._ n.,侄女,;,外甥女,9._ vt.,下载,download,coach,viru,network,niece,10._ vi.,出现,;,发生,11._ adj.,普遍的,;,通用的,;,宇宙的,12._ adj.,人造的,;,假的,13._ adj.,可移动的,;,机动的,arise,universal,artificial,mobile,14._ adv.,无论如何,;,即使如此,15._ adj.,总的,;,整个的,n.,总数,;,合计,16._ vi.&vt.,发信号,n.,信号,17._ n.,类型,vt.&vi.,打字,18._ n.拖把,vt.,用拖把拖,;,擦,anyhow,mop,total,signal,type,(B),单词运用,:,根据句意从上述单词中选择一个合适的单词的适当形式填空。,1.Their most important _,they say,is to create social value,1.,由后面的不定式及前面的形容词可知填名词,goal,。,goal,2.The _ spent the whole morning training the new basketball players.,3.Please inform me when a new difficulty_.,2.,此处需填入表示人的名词,根据后面的,trainingplayers,可知。,coach,arises,3.,从句缺谓语,因此填,arises,。,4.Compared with letters and public phones,_ phones are faster and much more convenient.,5.Her speech yesterday was a _ that her views have changed.,5.,冠词后的名词引导同位语从句。,mobile,signal,4.,由前面的,public phones,可知。,WWW.ZXXK.COM,(A),单词派生,写出下列单词与其派生词。,_ n.,计算,_ vt.,计算,_ n.,计算器,二、单词拓展,calculator,calculate,calculation,2._ n.,操作,;,运转,;,手术,_ v.,操作,;,运转,;,动手术,_ n.(,电脑,),操作员,;,接线员,operator,operate,operation,3._ vt.,简化,_ adj.,简单的,_ n.,简单化,simplification,simple,simplify,4._ n.,逻辑,;adj.,逻辑的,_ adj.,合逻辑的,;,合情理的,logical,logic,5._ n.,工艺,;,科技,;,技术,_ adj.,科技的,technological,technology,6._ adj.,智能的,;,聪明的,_ n.,智力,;,聪明,;,智能,intelligent,intelligence,点拨：,某些以,-ent/-ant,结尾的形容词改,-t,为,-ce,变名词,如：,important importance,；,absent absence convenient convenience,；,evident evidence;patient patience,等。,7._ vt.,解决,;,解答,_ n.,解决,解答,solution,solve,点拨：,某些以,-lve,结尾的动词变名词是改为,-lution,如,:revolve revolution:resolve resolution(,解决,);evolve evolution(,进化,),。,8._ n.,人；法人,_ adj.,私人的,;,个人的,;,亲自的,personal,person,9._ v.,应用,;,适用,;,申请,_ n.,应用,;,用途,;,申请,application,apply,10._ v.,出现,;,显得,_ n.,外观,;,外貌,;,出现,点拨,:,某些动词后加,-ance,构成名词,如：,allow allowance;guide guidance;assist assistance;perform performance,等。,appearance,appear,(B),灵活运用,:,用所给词的适当形式填空。,1.I often use a_(calculate)in math class.,2.“What if the_(operate)fails?”he asked worriedly.,2.,该句缺主语,因此填,operation,。,calculator,operation,1.,此处应填具体名词,故填,calculator(,计算器,),。,3.This question is too complex.Is there a way to _(simple)it?4.The work of an engineer requires _(intelligent)plus experience.,4.,缺宾语,故用名词形式。,simplify,3.,根据前面的不定式可知。,intelligence,5.As we all know,personal_(appear)is very important.,6.There are about 20 people _(apply)for the position.,6.,根据本句句型结构,这里应该用动词的,-ing,形式。,appearance,5.,缺主语,填名词。,applying,7.Please leave us alone.We have something _(person)to discuss.,8.In my opinion,these remarks are _(logic)out of place.,8.,副词修饰本句。,personal,logically,7.,形容词修饰前面的不定代词。,将下列短语译成英文。,1._,从,.,时起,2._,结果,3._,如此,.,以致,.,4._,毕竟,;,终究,三、短语翻译,after all,from.on,as a result,so.that.,5._,在某种程度上,6._,在,.,的帮助下,7._,处理,;,安排,;,对付,8._,看守,;,监视,in a way,with the help of,deal with,watch over,四、短语运用,从上题中选择恰当的短语翻译下列句子,然后合并成一篇,5,句话的短文。,1.,即使,在,他父亲,的帮助下,迈克还是不知道怎样,处理,事务。,1.Even,with the help of,his father,Mike still didnt know how to,deal with,affairs.,2.,他父亲,非常,生气。,2.His father was,so,angry.,3.,他说,“,从今以后,我要,监视,你的所作所为。”,3.He said to MikeFrom now on,I will,watch over,what you do.”,4.,后来,在某种程度上,情况有所改善。,4.Later,things improved more or less,in a way,.,5.,毕竟,迈克没那么愚蠢。,5.,After all,Mike is not that stupid.,6.,结果,他父亲表扬了他的进步。,6.,As a result,his father praised him for his progress.,合并,:,Even,with the help of,his father,Mike still didnt know how to,deal with,affairs.,His father was,so,angry,that,he said,to Mike,“,From now on,I will,watch over,what you do.”Later,things improved more or less,in a way,.,After al,l,Mike is not that stupid.,As a resul,t,his father praised him for his progress.,In pairs discuss what they,have in common,.,分组讨论他们有什么共同点,。,(B2P17),in common,常同,have,连用,如,：,I have nothing/little/something/much/a lot in common with him.,五、词汇用法,另,:in common,后接,with,构成介词短语：,in common with,同,一样,;,与,有共同之处,运用,:,(,1)You know,Mary,you and I have_(,一个共同点,).,one thing in common,(2)I have _,(,和我爸爸有许多共同点,).,(3)_(,同你一样,),I think the experiment will be a success.,a lot in common with my dad,In common with you,2.Although I was young I could simplify difficult,sums,.,尽管当时我还很年轻,但是我们能简化一些复杂的数学题。,(B2P18),sum n.,总数,;,金额,;vi.,概括,;vt.,总结；合计,sum up,总结,概括,总计达,(to),in sum,简言之,;,总而言之,to sum up,总之,;,概括地说,运用,:(1)They want to _ _(,总结过去的经验,)before going on.,(2)_(,总而言之,),，,pop stars influence teenagers in my country quite a lot.,sum up their past,experience,To sum up/In sum,3.,As a result,I totally changed my shape.,结果我完全改变了我的形状。,(B2P18),as a result,结果,(,短语副词,不接任何词,前后常有标点,),as a result of,由于,的结果,(,短语介词,接名词或代词,),result from(,接原因,),因,而,result in(,接结果,),导致,运用,:,(1)He works hard,and _,(,结果,),he is praised by all.,(2)_(,由于,)the pilots strike,all flights have had to be cancelled.,as a result,As a result of,(3)The fire resulted _ a cigarette end.,(4)The accident resulted _the death of two passengers.,in,from,4.Over time my memory has developed,so,much,that,like an elephant,I never forget anything I have been told!,随着时间的推移,我的记忆能力发展得如此之快,就像一头大象一样,从来不会忘记告诉我的任何事情。,(B2P18),so+adj./adv.+that.,如此,以致于,so+adj.+a+adj.+,单数可数名词,that.=such+a+,单数可数名词,that.,so many/much(,多,)/few/little(,少,)+,名词,+that,运用,:,(1)She is _,_(,一位非常亲切的老师,),that we all like her.,so kind a/,such a kind teacher,(2)There was _(,食物太多了,)that we couldnt eat it up.,(3)I wonder why_(,这么多人,)are waiting here.,so many people,so much food,5.I was able to,share,my knowledge,with,others through the World Wide Web.,我能通过万维网和其他人分享我的知识。,(B2P18),share vt.,分享,分担,;,分配,vi.,分担,;,共享,n.,股份,;,份额,运用,:(1)Mary _(,共用一台电脑,)her sister.,shares a computer with,(2)True friends ought to _,_(,同甘共苦,).,(3)Everyone who had helped got,_(,一份利润,).,a share in the profits,share joys and,tears/happiness and sorrow,6.,In a way,our programmer is like our coach.,从某种程度上看，我们的程序员就像是我们的教练。,(B2P23)in a way,在某钟程度上,例,:The changes are an improvement in,a way.,这些变化某种程度上是一种进步。,You are right in a way.,在某种程度上你是正确的。,联想,:(1)_,the way,障碍,(2)_,the way,在途中,(3)_,the way,顺便说（问）,in,on,by,(4)_,this way,通过这种办法,(5)_,no way,决不,(6)_,way of,经由,in,in,by,7.,After all,with the help of,my electronic brain which never forgets anything,using my intelligence is what Im all about.,不管怎样,在我过目不忘的电子脑的帮助下,运用,:,智能就是我的一切。,(B2P23),运用,:(,1)_(,归根结底,),a computer has to work with the help of a human.,(2)The test is rather difficult,_,_(,我毕竟还是及格了,).,I passed,it after all,After all,(3)I found his house _,_(,在一位警察的帮助下,).,(4)_(,在朋友们的帮助下,),he finally solved the problem.,With the help of his friends,with the help,of a policeman,8.This means that it should clean the house,mop the floors,cook the dinner and deal with telephone calls.,这就意味着它要扫地,拖地,做饭以及处理电话事宜。,(B2P24),deal with,处理,;,涉及,;,做生意,;,打交道,辨析,:,deal with,与,do with,do with,中的,do,是及物动词,表示如何“处置”常与,what,连用,what,是,do,的宾语,;,而,deal with,中的,deal,是不及物动词,表示如何应付或安排什么,常用,how,how,是状语。,运用,:,(1)_do you propose to do with the letter?,(2)Have you any suggestions on _ to deal with these difficulties?,What,how,指出,deal with,在下列各句中的意思。,He has to,deal with,the problem,carefully.(_),(2)You should,deal with,your,work more carefully.(_),处理,对待,(3)This report,deals with,the present situation in the Middle East.,(_),涉及,句型积累,一、美句诵写,1.I developed very slowly and it took nearly two hundred years before I was built as an analytical machine by Charles Babbage.,我发育缓慢,差不多到了两百年之后,查尔,巴比奇才把我制成了一台分析机。,(B2P18),句型,:It takes+,一段时间,+before.,过了多久才,仿写,:(1)It took a long time _the big fire died out.,(2)_(,要经过几年,),before a magazine starts to make money,.,before,It takes several years,(3)The earliest telephones were not popular and _,(,过了很长一段时间,)people began to hire or buy them.,it took a long time before,2.As time went by,I was made smaller.,随着时间的流逝,我被做得更小。,(B2P18),句型,:As time went by,随着时间的流逝,仿句,:(1)We are sure that everything will be better_(,随着时间的推移,).,as time passes/goes by,(2),春去秋来,当年的小屁孩已经出落成仪表堂堂的大小伙子了。,_,the little-noted kid had grown up to a distinguished looking young man.,As time went by/With time going by,二、难句分析,After I was programmed by an operator who used cards with holes,I could“think”logically and produce an answer quicker than any person.,在操作员用穿孔卡为我设计程序之后,我能够进行逻辑“思考”,并且能够比任何人更快地算出参考答案。,(B2P18),结构分析,：,after,引导一个时间状语从句,在这个时间状语从句中又有一个,who,引导的定语从句,;,主句中含有一个由,than,引导的比较状语从句。主句谓语动词是,_,。,could“thinkand produce.,三、语篇运用,:,用上述句型翻译下列短文。,我,花了三年才,学会滑冰,随着,时间的推移,我的年纪也大了。经过曾和我一起滑冰的李兴劝说,之后,我决定不再去从事这项运动了。,It took me three years before,I learned how to skate.,As time goes on,I am getting older.,After,I was persuaded by Li Xing,who,once went skating with me,I decided not to go in for the sport any more.,课文回顾,一、课文填空,按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适当的词或使用括号中词语的正确形式填空。,My first football competition was in Nagoya,Japan several years ago.,Last year our team went to Seattle,Washington in the USA.We won the second place.Personally,I think the team that won the first place_,(cheat).,宾语从句缺谓语,而且是过去时,故填,cheated,cheated,They had developed a new type of program just before the _,(compete).So we need to encourage our programmer to improve our intelligence too.,2.,填名词,与,before,构成介词短语。,competition,So we need to encourage our programmer to improve our intelligence too.We are determined to create an even better system.In _way our programmer is like our coach.,构成习语,in a way“,在某种程度上”。,a,She programs us _all the possible moves she has seen while watching human games.Then _prepares reliable moves to use if a new situation arises.,4.,由前面的动词可知填,with(,用,),。,5.,指代前面的,our programmer,。,with,she,In this way I can make up new moves _(use)my“artificial intelligence”.I would really like to play _a human team,for _ have been programmed to act just like them.,6.,分词作伴随状语。,7.,这里是“与,比赛”的意思。,8.,指本文的主人翁,电脑。,using,against,I,After all,with the help of my electronic brain 9 _never forgets anything,using my intelligence is 10 _Im all about!,9.,关系代词指代前面的,my electronic brain,。,10.,引导后面的表语从句,指代从句的内容。,which,what,二、课文概括,以约,30,个左右的词概括课文内容要点。,The computer introduced the developing process of itself.First a calculating machine was invented in France in 1642,then it kept changing until it now develops into a laptop used in all fields.,语法活用,形容词和副词,熟读深思,1.,朗读下列句子,看看形容词可作哪些成分。,This is an interesting book.,这是一本新书。,(,定语,),This book is interesting.,这本书很有趣。,(),表语,I find the book interesting.,我觉得这本书有趣。,(),I have something important to tell you.,我有重要的事情要告诉你。,(),宾补,后置定语,2.,副词在句中作状语,看看可修饰哪些词。,Its raining heavily.,雨下得很大。,(,修饰动词,),Youre quite right.,你非常正确。,(),修饰形容词,Dont speak too fast.,不要说得太快。,(),Your coat is just behind the door.,你的上衣正好在门后面。,(),Luckily,he was saved.,幸运的是，他得救了。,(),修饰另一副词,修饰介词短语,修饰句子,归纳总结,1.,形容词是作定语、表语、补语的典型词类。因此，在做语法填空时,若句子缺定语、表语或补语,要首先想到用形容词。,2.,副词在句中作状语,修饰动词、形容词、副词、介词短语或整个句子。,3.,形容词和副词的比较等级的常用句型：,(1),表示相等：,as原级,+as,(2),表示不如：,not as/so+,原级,+as,(3),表示超过：,比较级,+than,(4),表示“最”：,the+,最高级,+of/in,短语,(,表示范围,),表示“越,越,”:,the+,比较级，,the+,比较级,表示“越来越”,:,比较级,+and+,比较级,表示“与其,不如,”:,more.than.,特别提醒:,在语法填空中,主要考查形容词与副词之间的转换、比较级等,以及,-ing,形容词和,-ed,形容词的用法区别等。,灵活运用,1.His teacher took a deep drink,，,smiled _(warm),and thanked his student very much for the sweet water.,1.,修饰动词,smiled,，作状语，用副词。,warmly,2.The teacher replied,“You tasted the water.I tasted the gift.The water was simply the container for an act of kindness and love.Nothing could be _(sweet).”,2.,意思是“没有什么比这更甜”即“这是世界上最甜的东西”。,sweeter,3.He was very tired after doing this for a whole day,but he felt very happy since the crop did“grow”_(high).,3.,指比他,pluck up a few inches,之前“长”得“更高”了,是省略了,than before,的隐性比较级。,4.This proverb is saying we have to let things go in their _(nature)course.,4.,在名词,course,前作定语,用形容词。,natural,higher,5.we drank together and talked _,(merry)till far into the night.,5.,修饰动词,talked,作状语,用副词形式。,6.one of the _(bad)gift choices I ever made was for my high school English teacher,Ms Chen.(,广州市水平测试,),6.,由,I ever made,可知,用,bad,的最高级。,merrily,worst,7.Games are often _(excite)and dramatic,but they generally arent very intellectual.(,佛山二模,),7.,指事物比赛,)“,令人兴奋的”。,8.Seated in a comfortable chair,，,listening to the peaceful music,youll be brought into a _(relax)state of mind.,8.,作定语要用形容词,表示人感到轻松的,用,-ed,形式的形容词,意为“放松的心情”。,relaxed,exciting,9.How much is a dish of plain ice cream?”he asked.Some people were now waiting for her service and the waitress grew a bit _(patience).“Thirty five cents”she said_(rude).,9.,前空是在系动词,grew,后作表语,用形容词,;,后空修饰动词,said,用副词。,impatient,rudely,10.This was _(large)because pet owners tended to be the middle age,who have less education and more health-risk factors.,10.,修饰,because,引导的原因状语从句,用副词。,largely,11.Some of these universities have forty thousand or _(many)students.,11.,指比四万“更多”的学生。,12.The number of people present at the concert was _smaller than expected.,12.,修饰形容词比较级,表示少“得多”。,more,much,语法填空,2011,梅州三校联考,Nowadays,it is common that parents buy 16 _educational present for their children.A lot of personal computers are placed under the Christmas tree this year.,16.educational,以元音开头。,an educational present,an,17_(believe)that computers are the key to success,parents are also insisting that children 18 _(teach)to use them in school as early as possible.,17.parents,与,believe,是主动关系。父母相信电脑是成功的关所以坚持,。,18.,insist,表坚持主张时,宾语从句中谓语动词要用虚拟语气。,insist that sb.(should)do,。,Believing,be taught,The problem for school is 19 _when it comes to computers,parents dont always know best.Teachers found themselves caught in the middle of the problem between parent 20 _(press)and wise educational decisions.,19.that,引导一个表语从句。,20.,根据下文,and wise educational decisions,可知,and,连接的两个都是名词。,that,pressure,Many schools are giving in to parental impatience and are purchasing hardware 21 _ good educational planning.Educators do not even agree on how computers should be used.Even those 22 _believe that all children should have access to computers warn of potential dangers to the very young.,21.,根据前文,Many schools are giving in.,可知是没有好的教育计划就购买了电脑硬件。,22.,先行词是,those,。,without,who,The temptation remains strong largely 23 _ young children adapt so well to computers.However,not every school can afford to go into computing,and that creates 24 _ problem:a division between the haves and the have-nots.,23.,前后两句为因果关系。,24.,前文已经出现过,problem,在此,表示出现另外的问题。,because,another,Very few parents are agitating for(,倡导,)computer instruction in poor school districts,25 _ there may be barely enough money to pay the teacher.,25.where,在此引导一个定语从句,先行词是前文