M7U1U4课文内容填空.docx

M7U1U4课文内容填空.docx

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M7U1Theevolutionofvideoandsounddevices

EarlyhistoryofTVManydifferentpeople________tothedevelopmentofTV.MostearlyTVbroadcastsweremade_________asystemdevelopedbyJohnLogieBairdintheUK.However,hissystemwasvery_______andhadmany_________.AnAmerican,PhinoFarnsworth,madeimportant_________inthedevelopmentofTV.ModernTVusemanyofthe________firstdiscoveredbyFarnsworth.

Sb_________thefirstcolorTVin1928,butitwasnotuntil1938thatthefirstcolorTVprogramswas________.Ittookmorethantwodecades,though,until1951,for_______colorTVbroadcaststobeginintheUSA.RegularcolorTVbroadcastswere_______intheUKuntil1967.However,_______ashorttimenearlyallTVbroadcastsweremadeincolor,andwithinfiveyearsmorecolorTVsthanblack-and-whiteTVswerebeingused.

Themodernage:

satelliteTVSatelliteswereusedtobroadcastTVbeginningin1962.Satellites_______TVtobebroadcast________overvastdistances,witheveryone________thesamebroadcastatthesametime.TheyalsomakeTV_________topeoplewholivefarawayfromcities,andsatellitedishescanoftenbeseen________throughoutthecountrysideand________areas.Ofcourse,onlyasmallpercentageofpeople________satellitedishes.However,mostpeoplestill_______fromsatelliteTV,aslocalTVcompaniesbroadcastthesignalstheygetfromsatellitereceiverstothepopulation________by.

EarlyhistoryofsoundrecordersItallbeganin1877,________sbmadethefirstrecordingofahumanvoiceonhisinvention,therecordplayer.Earlyrecordplayersusedroundtubesto_______on.However,in1887sb,aGermanlivingintheUAS,________arecordplayerthatusediscsas_________totubes,andsothemodernrecordplayerwasborn.Thefirstrecordplayershadtobe________upbyhandandonlyplayedrecordsthatweretwominuteslong.Timelysurelyhavechanged.

SoundandvideorecordersIn1928,thefirsttaperecorders_______tocopysoundweremadeinGermany.Mostearlyrecorders________steeltapetorecordon,whichmadethemheavyand_______touse,orpapertape,whichiseasiertousebutoften________.Itwasnotuntiltheearly1950sthatmosttaperecordersbeganusingplastictapeastheydotoday.Meanwhile,electrical_________eventuallybecamesosmallthat,bythelate1960s,_______cassetteplayersweredeveloped,alongwithvideorecorderswhichwereusedbyTVstations.Bythelate1970s,videorecorderssmallandcheapenoughforhomeusewere________.

SoundandvideogodigitalIn1982,thefirstCDsweremade________.CDsareoftenusedfor_______andplayingmusicbecausetheyhaveamuchbettersound_______thantraditionalrecordsandcassettes.In1993,theVCDwasborn,andin1995,theDVDwasinvented.TheDVDisnowthe________forrecordingandplayingbackvideo.

ThefutureWiththedevelopmentof_______technology,soundandvideocannowbe_______onaPC,ontheInternet,orusingsomeformof_______storage.Thiswillsoonmakerecords,cassetterecorders,CDs,DVDs,andevenTVsthingsofthepast.Technologyisnowchangingfasterthanmostpeoplecankeep______with.Whocan_______whatthefuturewillbring?

二、翻译

1很难预知未来会发生什么？

2经过认真考虑，我们最终还是拒绝了他在会议上提出的建议。

3他投票赞成这一决定只是因为他没有其他选择。

4她随意的衣着不适合这个重要的典礼。

5我不认为女性应该为了家庭而牺牲独立性。

6住在主干道旁边的主要的缺点是喧嚣的杂音。

7很显然，定期运动是健康生活的重要组成部分。

8在这样的情况下，他开始怀疑自己的判断。

M7Unit2twolife-savingmedicines

Thisarticlewillfocusontwodrugsthatstarted_____inmedicine.Ifyou___upanymedicinecupboardorgotoanymedicinecounterintheworld,itislikelythatyoufindaspirinandpenicillin.Bothofthesemedicineshavesavedmillionsofpeopleslivesandhaveproved_____tomankindsincetheywereinvented.

Aspinrinwas____in1897.However,thebasicchemicalusedtomakeaspirincanbefoundinnature.Nearly3,5000yearsago,people____onleavesordrankakindofteamadefromleaves_____aspecialchemicalto____bodypainsandfever.About2,5000yearsago,theGreekphysicianHippocartes,fatherofalldoctors,madeajuicefromatreebark_____salicylicacidforthesame____.Itwasin1897____aEuropean_____calledDrFelixHoffmannproducedaspirinfromthischemical.Thefirst_____ofthismedicinetookplacein1899,whenthecompanyHoffmannworkedforbegan_____themedicinein____formtophysicianstousewithpatients.Ayearlater,in1900,aspirinwassoldinshopsintheformof____.Withinashorttime,aspirinbecamethe____medicineintheworldforpain_____.

Notonlyhasaspirinproved____forreducingfeverandhelpingstoppain,buttherearealsootherthingsthataspirincanhelpwith.LawrenceCraven,adoctorformtheUSA,introducedtheideain1953thataspirinhadthe_____toreducetheriskofheartattacks,becauseithelpedtheblood______better.Thereportwas_____.However,in1971,SmithandWillisfromtheUKprovedthataspirincouldhavethateffect,andin1977astudy______outintheUSAshowedthataspirincouldpreventstrokes,Elevenyearslater,DrThunfromtheUSAshowedthataspirincould______theriskofsomecancersby40percent.In1999,aspirinwasover100yearsold,andyettherehavebeenmorediscoveriesabouthowitcanhelpincreasethe______ofpeopleslives.In2003,aChinesedoctor,DrYuanMingsheng,foundthataspirincouldreducebloodsugarlevelsand,therefore,helppeoplewith_____.

Anotherdrugthathashelpedincreasethe_____ofpeopleshealthispenicillin,whichisconsideredbymanytobeoneofthemostimportantmedicinesin________society.ItwasdiscoveredbyaScottishscientistnamedAlexanderFlemingin1928.Henotedthatadishinwhichhewastryingtogrow______foranexperimentlooked_______---therewasblue________init.Itastonishedhimtoseethebacteriasurroundingthemoulddead,whichmeantthatthemouldhad______them.Flemingtriedthismould_____onanotherbacteriumandfoundthatitkilledthatbacteriumtoo.Heimmediatelyrealizedthatthemouldmighthavean_______intreatingillnessescausedbybacteria.He_____theliquidmadefromthemould‘penicillin“.However,thedevelopmentofpenicillinasadrugfacedtwoproblems.First,hewasunabletofinda______tomakepenicillinpureenoughtoworkasamedicine.Second,itwasdifficulttoproducepenicillinintheample_____neededtobeeffective.In1940,twootherscientistshelpedsolvetheseproblems,andmanagedtomakeandtestthenewdruginlargequantities.SincethenewdrugwasneededforWorldWarⅡ,thegovernmentapprovalprocessforpenicillinwas______,andmass________beganin1944._____tothewidespreaduseofpenicillin,manylivesweresavedduringthewar.Ifpenicillinhadnotbeen_____,manypeoplewouldhavedied_____sicknessforevensmallwounds.Penicillinbecamethegreatestdrugofthe20thcentury,savingmillionsoflives.

翻译句子

1.我们高兴地看到这一科学变革加速了社会的发展.

2.她拥有许多可贵的品质,这些品质对她的成功是至关重要的.

3.我认为他有在这个领域成为专家的潜力.

4.我发现丹尼尔的行为有点反常,但猜不出为什么.

5.只有少数的专家赞同这些问题不会持续太久的观点.

6.我们非常惊讶地发现有人改变了房间内家具的摆放.

7.当在电视上看到我们的国旗在奥林匹克运动会上升起时,我们发出了一阵欢呼声.

8.这个项目被推延了,因为我们还没有得到政府的批准.

Unit3TheInternethaspositiveeffectsonourlives

MynameisZhuFeiandIamspeakinginoftheInternet—IbelievethattheInternethasonourlives.TherearetwomainwhichmustbeincludedwhenweanalysetheInternet.Thefirstisitsforpeoplewhoarelookingforinformation.ThesecondisourtoothersthroughtheInternet.

Whenpeopleneedinformation,fromthenewsandweatherforecaststotravelpackagesandacademicresearch,theInternetisnowthefirst

they.Withthetouchofabuttonortheofamouse,astudentwillfindinformationfromthelargestlibrariesandmuseumsintheworldathisorher.Internetuserscancommunicatewithexpertsonallsortsoftopics,andreadarticleswrittenbypeoplewhoareleadersoftheirfields.

Yet,somepeopleare.TheythatsurfingtheInternetisawasteoftime.Theymakethethatchildrenspendtoomuchtimechattingandplayinggamesinsteadoffocusingontheirschoolwork.However,arecentsurveyintheUSAshowsthat80percentofInternetusersitmostlytosearchforanswerstoquestions.ThesecondmostuseoftheInternet,for79percentofInternetusers,istofindoutinformationabouthobbies.TheseprovethatgatheringinformationistheprimaryusefortheInternet.

AnothertrulywonderfulaspectoftheInternetisthepeopleuseittobuildsocial.OneofthegreatestbenefitsofInternetfriendshipsisthattheyareoncommoninterests,appearanceorage.Youngpeoplefrombackgroundsanddifferentcountriescanformfriendshipsthatwilllasttheirentirelives.

，peoplewhoaredisabledandmuststayintheirhomescanandcommunicatewithothersaroundthewhohavesimilarinterests.WithouttheInternet,thesepeoplewouldhavefewertomeetpeople.Forthesereasons,IbelievetheInternetisapositivetoolthathelpsmakeourlivesbetter.

TheInternethaseffectsonourlives

MynameisLiLeiandIwillbespeakingtheInternet.Inmyopinion,theInternethasnegativeeffectsonourlives.ThemainoftheInternetIwilltodayarethatithastoomuchinformationthathasnotbeenfor,andthatitisthewaypeoplespendtheirtime.

Ofcourse,up-to-date,accurateinformationisanimportantthingforanyonewhoisdoingresearch.OnegreatoftheInternetisthatitprovidesinformation.OnegreatoftheInternet,,isthatitisdifficulttoknowwhethertheinformationistrueandaccurate.ThehugeamountoffalseinformationontheInternetbecomesaproblemeveryday.Thisisverybecausewecannot