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1、【优化指导】课标全国高考英语总复习 课时作业30 北师大版一、阅读理解adoes your laptop sometimes get so hot that it can almost be used to fry eggs ? new technology may help cool it,and give information technology a unique twist,says jairo sinova,a professor.laptops are getting increasingly powerful,but as they get smaller they are h
2、eating up,and dealing with the excessive heat has become a headache,sinova explains.“the heart of the problem is the way information is processed,sinova notes.“laptops and some other devices use flows of electricity to process information,and thereby also produce heat.theoretically,excessive heat co
3、uld melt the laptop,and also wastes considerable energy.sinovas research is on an alternate way to process information.“our research looks at the spin(旋转)of electrons(电子),tiny particles that naked eyes cannot detect,he explains.“the directions they turn can be used to record and process information.
4、to process information,sinova says,it is necessary to create information,transmit the information,and finally read it.the question is,can we change the way this is done?“the device weve designed arranges the electrons according to spin together with the information we want to process.we then transmi
5、t the electrons to another place in the device but with the spin still surviving,and finally are able to measure the direction of their spin through a voltage(电压)that they produce,sinova explains.the biggest challenge to create a spinbased device was the distance the electrons could travel while sti
6、ll keeping their spin.“transmission is no problem now.whereas before the limit was several hundred feet,with our device information can easily be transmitted hundreds of miles,he says.“this new device,as the only spinbased device for information processing,has a lot of real practical potential,he sa
7、ys.“one huge advantage is that it is operational at room temperature,which nobody had been able to achieve until now.it may lead to a new and more efficient way to process information.1to deal with hot laptops,we need to_.amake them smallerbprotect them with special materialscfind a new way to proce
8、ss informationdspeed up the movement of electrons2what can we learn about sinovas device?ait makes information easily transmitted to hundreds of miles away.bit can be operated at any temperature.cit can send information anywhere.dit is made of all new materials.3from the last paragraph we can infer
9、that_.alaptops can only be used at room temperaturebthe new device has not yet been put to practical use claptops are the most efficient way to process informationdlaptops function best indoors4what might be the most suitable title for the text?anew laptops can be used to fry eggsbnew laptops waste
10、no energycnew technology may cool the laptopdnew device processes information fasterbkataria is the founder of the worldwide laughter movement.the celebration of world laughter day is a positive activity for world peace and is intended to build up a global sense of brotherhood and friendship through
11、 laughter.the first“world laughter daygathering took place in mumbai,india,on 11th january,1998.12,000 members from india and international laughter clubs attended it.now there are over 5,000 laughter clubs worldwide on all 5 continents.“happydemicwas the first world laughter day gathering outside i
12、ndia.it took place on 9th january,two years after the mumbai gathering.in copenhagen,denmark,more than 10,000 people gathered at town hall square.the event went into guinness book of world records.“world laughter dayis now organized on the first sunday of may every year.hundreds of people gather wor
13、ldwide on that day to laugh together.today,many people fear widespread international terrorism.the world has never faced so much unrest before.people are at war within themselves.laughter is a universal language,which has the ability to unite humanity without religion.laughter can build a common con
14、nection between various religions and create a new world order.the idea may sound overambitious(野心太大的),and maybe it is.but maybe it is not.it is our deep belief that laughter and only laughter can unite the world,building up a global sense of brotherhood and friendship.studies also say that laughter
15、 helps your body do the following:lower blood pressure;lighten depression;reduce stress;work out the heart,especially for those who are unable to perform physical exercise.so in life,when you can laugh,you should laugh loudly and with your entire bodybecause its good for you.5the purpose of celebrat
16、ing world laughter day is _.ato build up a global sense of brotherhood and friendship through laughterbto build a common connection between various religionscto reduce stress and lighten depressiondto lower blood pressure6the first world laughter day gathering outside india took place_.aon 11th janu
17、ary,1998bon the first sunday of maycon 9th january,1996don 9th january,7the authors attitude towards laughter movement is _.apositivebnegativecuninterested dobjective二、短文填空根据短文内容,从短文后的选项中选出能填入空白处的最正确选项。选项中有两项为多余选项。friends play an important part in our lives,and although we may take the fact of frien
18、dship for granted,we often dont clearly understand how we make friends.while we get on well with a number of people,_1_moreover,a great many relationships come under the general term“friendshipin all cases,two people like one another and enjoy being together,but beyond that,the degree of closeness b
19、etween them and the reasons for their interest in each other change greatly.at the beginning,much depends on how people meet,and on good first impressions.as we get to know people,_2_although these factors are not of the greatest importance,it is more difficult to have a good relationship with peopl
20、e when there is a big difference in age and background.then,_3_ friends will stand closer together and will spend more time looking at each other than ordinary friends.smiles and soft voices also express friendliness,and it is because they may give the wrong signals that shy people often have diffic
21、ulty making friends.a friendly look with a wrong facial expression can turn into an unfriendly stare,and nervousness may be wrongly understood as unfriendliness.some relationships are a result of argument and discussion,but it is usual for close friends to have the same ideas and beliefs,the same op
22、inion and interests.the more closely involved people become,the more they depend on each other.and _4_ equally,friends have to learn to make allowances for each other,to put up with annoying habits,and to accept differences in opinion.in contrast with marriage,_5_ but the support and understanding t
23、hat results from shared experiences and affections does seem to create a close and lasting relationship.awe are usually friends with only a few.bmany factors can affect friendship and relationship.cpeople want to do friends favors and hate to let them down.dargument and discussion can improve person
24、al relationships.ewe consider things like age,race,looks,economic and social status,etc.fwe pay attention to actual behavior,facial expression,and the way a person speaks.gthere are no friendship ceremonies to strengthen the relationship between two people.5_三、短文改错增加:在缺词处加一个漏字符号(),并在其下面写上该加的词。删除:把多余
25、的词用斜线()划掉。修改:在错的词下划一横线,并在该词下面写出修改后的词。注意:1.每处错误及其修改均仅限一词;2只允许修改10处,多者(从第11处起)不计分。last week,my parents and i took a twodays trip to emei mountain in sichuan.as everyone knows,its famous mountain with all kinds of plants and animals.the weather was fine.it was about noon we arrived at the mountain.the three of them were very excited.as we climbed the mountain,we fed monkeys,visiting temples and told stories.on the way up i was busy taking picture since the scenery was so beautiful.time passes quickly.evening came,and we spent the night in a hotel at the top of the mountain.
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