中考中考數(shù)詞講解

中考中考數(shù)詞講解廣規(guī)則構(gòu)成基數(shù)詞vl 不規(guī)則構(gòu)成｛規(guī)則構(gòu)成不規(guī)則構(gòu)成數(shù)詞的分類與冠詞連用的不同意義數(shù)詞的分類數(shù)詞構(gòu)成數(shù)詞分?jǐn)?shù)Y、讀法｛構(gòu)成讀法數(shù)詞的句法功能［數(shù)詞的應(yīng)用及?？键c(diǎn)清單考點(diǎn)一基數(shù)詞和序數(shù)詞1.基數(shù)詞表示數(shù)目的詞稱為基數(shù)詞。其形式如下:1-10one,two,three,four,five,six,seven,eight,nine,ten11-19eleven,twelve,thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen這里除eleven,twelve,thirteen,fifteen,eighteen為特殊形式外，fourteen,sixteen,seventeen,nineteen都是由其個(gè)位形式后添加后綴-teen構(gòu)成。20-99整數(shù)幾十中除twenty,thirty,forty,fifty,eighty為特殊形式外,sixty,seventy,ninety都是其個(gè)位數(shù)形式后添加后綴-ty構(gòu)成。表示幾十幾時(shí)，在幾十和個(gè)位基數(shù)詞形式之間添加連字符“-"。如：21twenty-one 76seventy-six(4)百位數(shù)1-9基數(shù)詞形式后加“hundred”，表示幾百，不是整百時(shí)在hundred后加上and。如：1-9基數(shù)詞形式后加hundred,表示幾百,不是整百時(shí)在hundred后加上and。如：101ahundredandone320threehundredandtwenty648sixhundredandforty-eight(5)從數(shù)字的右端向左端數(shù)起，每三位數(shù)加一個(gè)逗號(hào)“，”。從右開始，第一個(gè)“，”前的數(shù)字后添加thousand，第二個(gè)“，”前的數(shù)字后添加million,第三個(gè)“，”前的數(shù)字后添加billion。然后一節(jié)一節(jié)分別表示，兩個(gè)逗號(hào)之間最大的數(shù)為百位數(shù)形式。2,648twothousandsixhundredandforty-eight16，250,064sixteenmilliontwohundredandfiftythousandandsixty-four(6)表示“人的不確切歲數(shù)或年代”用幾十的復(fù)數(shù)形式。如：Hebecameaprofessorinhisthirties.Itwasinthe1960s.2.序數(shù)詞表示順序的詞稱為序數(shù)詞。序數(shù)詞的主要形式：⑴從第一至第十九其中onefirst,twosecond,threethird,fivefifth,eight-eighth,nineninth,twelve-twelfth為特殊形式,其他的序數(shù)詞都是由其相對(duì)應(yīng)的基數(shù)詞后面添加th構(gòu)成。如：sixsixth,nineteen-nineteentho⑵從第二十至第九十九整數(shù)第幾十的形式由其對(duì)應(yīng)的基數(shù)詞改變結(jié)尾字母y為i,再加eth構(gòu)成。twentytwentieth, thirtythirtieth表示第幾十幾時(shí),用幾十的基數(shù)詞形式后加上連字符“-”和個(gè)位序數(shù)詞形式一起表示。thirty-first第三十一 fifty-sixth第五十六 seventy-third第七十三⑶第一百位以上的多位序數(shù)詞由基數(shù)詞的形式變結(jié)尾部分為序數(shù)詞形式來表示。onehundredandtwenty-first第一百二十一onethousand,threehundredandtwentieth第一千三百二十(4)序數(shù)詞的縮寫形式有時(shí)，序數(shù)詞可以用縮寫形式來表示.主要縮寫形式有：first1st,second2nd,third3rd,fourth4th,twenty-third23rd注:在使用序數(shù)詞時(shí)，通常前面要加定冠詞the；但是如果序數(shù)詞前出現(xiàn)不定冠詞a或an時(shí),則表示“再一”，“又一”。如：We’llgooveritasecondtime.另外，基數(shù)詞也可以表示順序。只需將基數(shù)詞放在它所修飾的名詞之后即可，不需要添加定冠詞。thefirstlesson LessonOne thefifthpage Page5考點(diǎn)二世紀(jì)，年代和年月日表示法.世紀(jì)可以用定冠詞加序數(shù)詞加世紀(jì)century表示,也可以用定冠詞加百位進(jìn)數(shù)加’s表示。如：thesixth(6th)century公元六世紀(jì)the19007s二十世紀(jì).年代用定冠詞及基數(shù)詞表示的世紀(jì)加十位整數(shù)的所有格或復(fù)數(shù)形式構(gòu)成。inthe19307s/1930s在二十世紀(jì)三十年代.表示某年代的早期、中期和晚期，可以在定冠詞后、年代前添加early,mid-,heearly19207s在20世紀(jì)20年代早期inthemid-1950's在20世紀(jì)50年代中期.年月日表示法⑴年份用基數(shù)詞表示，一般寫為阿拉伯?dāng)?shù)字，讀時(shí)可以以hundred為單位,也可以以世紀(jì)、年代為單位分別來讀。如：1949讀作nineteenhundredandforty-nine或nineteenforty-nie1800讀作eighteenhundred253讀作twohundredandfifty-three或twofifty-three1902讀作nineteenhundredandtwo或nineteenotwo表示在哪一年，一般在年份前加介詞in,使用year時(shí),year放在數(shù)詞之前。intheyeartwofifty-threeBC在公元前253年但是，通常采用in加表示年份的阿拉伯?dāng)?shù)字。⑵月份縮寫形式除了May,June,July外，其他的月份都由其前三個(gè)字母表示，但September除外。JanuaryJan.一月 February-Feb.二月MarchMar.三月AprilApr.四月 AugustAug.八月 September-Sep.九月OctoberOct.十月 NovemberNov.十一月 December-Dec.十二月(3)日期用定冠詞the加序數(shù)詞表示。在哪一天要添加介詞on。Mar.1st三月一日(讀作Marchthefirst或thefirstofMarch)考點(diǎn)三hundred,thousand和million的用法.基數(shù)詞在表示確切的數(shù)字時(shí),不能使用百、千、百萬(wàn)、十億的復(fù)數(shù)形式；但是，當(dāng)基數(shù)詞表示不確切的數(shù)字，如成百，成千上萬(wàn)、三三兩兩時(shí)，基數(shù)詞則以復(fù)數(shù)形式出現(xiàn)。如：Therearehundredsofpeopleinthehall..hundred,thousand和million用法總結(jié)具體數(shù)字+hundred/thousand/million/billion+名詞復(fù)數(shù)hundreds/thousands/millions/billions+of+名詞復(fù)數(shù)考點(diǎn)四分?jǐn)?shù)、小數(shù)和百分?jǐn)?shù).分?jǐn)?shù)是由基數(shù)詞和序數(shù)詞一起來表示的?；鶖?shù)詞作分子，序數(shù)詞作分母，除了分子是“1”以外，其他情況下序數(shù)詞都要用復(fù)數(shù)形式。如：3/4threefourths或threequarters1/3onethird或athird.當(dāng)分?jǐn)?shù)后面接名詞時(shí)，如果分?jǐn)?shù)表示的值大于1,名詞用復(fù)數(shù)；小于1，名詞用單數(shù)。1.5hours 4/5meter.小數(shù)用基數(shù)詞來表示,以小數(shù)點(diǎn)為界，小數(shù)點(diǎn)左邊的數(shù)字為一個(gè)單位，表示整數(shù)，數(shù)字合起來讀；小數(shù)點(diǎn)右邊的數(shù)字為一個(gè)單位，表示小數(shù)，數(shù)字分開來讀；小數(shù)點(diǎn)讀作point,0讀作zero或o,整數(shù)部分為零時(shí),可以省略不讀。如：0.4zeropointfour或pointfour.百分?jǐn)?shù)用“基數(shù)詞+percent”表示。50%fiftypercent題組訓(xùn)練.peoplegoswimminginsummerinDalian.A.ThousandsB.ThousandsofC.ThousandsofD.Thousand.thestudentswilltakepartinthisEnglishspeechcontest.A.TwohundredofB.TwohundredsofC.HundredsofD.Hundredof.Hefailedtwice,buthetriedthirdtime..Jimisthetallerofthe.中考題解析gotabeautifulbikeonbirthday.Ilikeitverymuch.A.fifteenthB.fifteenC.myfifteenD.myfifteenth解析:句意:在我十五歲生日時(shí),我得到了一輛漂亮的自行車。我非常喜歡它。本題考查數(shù)詞。表示某人的第幾個(gè)生日要用序數(shù)詞。選D。ThevolunteerssentbookstoamountainvillageschoolonChildren'sDay.A.twohundredsofB.twohundredofC.twohundredsD.twohundred解析:句意:志愿者們?cè)趦和?jié)給一所山村學(xué)校送去了200本圖書。本題考查數(shù)詞的用法。hundred與具體數(shù)字連用時(shí)用單數(shù),而且后面也不接介詞of，故選D。IthinkofthematerialsIlistenedtoatthebeginningoftheexameasy.A.threefourths；is B.thirdfour；areC.threefourths；are D.threefourth；are解析:句意:我認(rèn)為在考試開始時(shí)所聽材料的四分之三很容易。本題考查分?jǐn)?shù)表達(dá)及主謂一致。英語(yǔ)中分?jǐn)?shù)的表達(dá)法是:分子用基數(shù)詞,分母用序數(shù)詞，分子大于1時(shí)，分母用復(fù)數(shù)形式；分?jǐn)?shù)+of+名詞作主語(yǔ)，謂語(yǔ)動(dòng)詞要與of后面的名詞在數(shù)上保持一致，本題賓語(yǔ)從句的主語(yǔ)是復(fù)數(shù)名詞materials,故應(yīng)該用are。選C。一、英語(yǔ)閱讀理解專項(xiàng)練習(xí)試卷1.閱讀下列短文，從每題所給的（A、B、C和D）四個(gè)選項(xiàng)中選出最佳選項(xiàng)。Whenamanwaswalkingbysomeelephants,hesuddenlystoppedHewonderedwhythesehugeanimalswerebeingheldonlybyasmallropetiedtotheirfrontlegs.Nochains,nocages.Itwasclearthattheelephantscouldbreaktheropeatanytime,butforsonicreason,theydidnot.Hesawatrainernearbyandaskedwhytheanimalsjuststoodthereanddidn'ttrytogetaway."Well,"thetrainersaid,"whentheywereveryyoungandmuchsmaller,weusedthesameropetokeepthemfromrunningaway.Atthatage,it'senoughtoholdthem.Astheygrowup,theyareconditionedtobelievetheycannotbreaktilerope.Theybelieveitcanstillholdthem,sotheynevertrytobreakfree."Themanwassurprised.Theseanimalscouldbreakfleewhenevertheywanted,butbecausetheybelievedtheycouldn't,theywerestuckrightwheretheywere.Howmanyofusgothroughlifeliketheelephants-holdingontothebeliefthatwecannotdosomethingsimplybecausewefailedatitoncebefore?Failureisapartoflearning.Ifwefailedonce,itdoesn'tmeanwecanneversucceed.Ifwetryagainandagain,maybewewillsucceedoneday.Sodon'tbeafraidoffailureandkeepontrying.Whydidtheelephantsnevertrytobreaktheropeaftertheygrewup?A.Becausetheylikedbeingtied. B.Becausetheyweretooweaktobreakit.C.Becausetheydidn'twanttobreakit.D.Becausetheythoughttheycouldn'tbreakit.Theunderlinedword"stuck"inParagraph3means"".A.left B.caught C.killed D.foundWhatdoesthewriterwanttotellus?A.日ephantsshouldbesetflee.Failurecanhelpussucceed.Neverletfailurestopyoufromtryingagain.Peopleshouldlookaftertheelephantswell.【答案】(1)D(2)B(3)C【解析【分析】本文主要介紹了一個(gè)男人看到大象被繩子綁住了一只腳而不逃走，由此引發(fā)對(duì)人生的思考。(1)細(xì)節(jié)題。根據(jù)原文提至“了Astheygrowup,theyareconditionedtobelievetheycannotbreaktilerope.Theybelieveitcanstillholdthem,sotheynevertrytobreakfree.可知大象小時(shí)候被綁住，長(zhǎng)大了以后依然認(rèn)為繩子可以拴住他們，故選D。(2)推斷題。根據(jù)原文提到了becausetheybelievedtheycouldn't,可知他們認(rèn)為自己已經(jīng)被這根繩子困住了，故選B。(3)主旨大意題。根據(jù)原文提至4了Ifwefailedonce,itdoesn'tmeanwecanneversucceed.Ifwetryagainandagain,maybewewillsucceedoneday.可知作者想告訴我們永遠(yuǎn)不要被困難打倒，堅(jiān)強(qiáng)起來，故選C?！军c(diǎn)評(píng)】考查閱讀理解。本文涉及細(xì)節(jié)題、推斷題和主旨題三種常考題型，細(xì)節(jié)題要注意從文中尋找答案；推斷題需要聯(lián)系上下文，推斷出需要的信息；主旨題需要通讀全文，了解大意之后找出中心思想。2(2017?南充)根據(jù)短文內(nèi)容，選擇最佳答案。 WemovedawayfrommygrandmotherwhenIwaseightyearsold.Imissedheralot.Iwasherfavoritegranddaughterandshewasmyfavoritegrandma.Twoyearslatermymotherandfatherseparatedandsoondivorced.Ifeltasifmyworldwasfallingapart.Ilivedwithmymotherforatime,nextdoortomygrandmaandgrandpainanapartmentwhilemyfatherwasawayduringWorldWarH.Grandmaneverhadmuchinthewayofmoneyormaterialthings.Butitwasthelittlethingsshegavemethatletmefeelwarm,likelettingmedipmyfingersinthesugarbowl,lettingmesipthecoffeefromhercuporallowingmetositonthetableasIhadmeals.Thoughshedidn'thavemuch,shedidsomethingformybrotherandme.Iwillalwaysremembershesavedhercoinsinaglassjar.Ithoughtmygrandmacouldhaveusedthesecoinsherself,butshesavedthemtogiveuswhenwecametovisither.Idon'trememberhowmuchwecollectedonourvisits,norwastheamount(數(shù)目)important.Itwastheideathatsherememberedus,andcaredaboutuswhenwewereawayfromher.Whathappenedtothewriterwhenshewaseightyearsold?A.Shemovedawayfromhergrandma. B.Shemovedawayfromherparents.C.Shelivedwithhergrandparents. D.Shelivedwithheraunt.Whatdoestheunderlinedword“divorced”meaninChineseinParagraph2?A.和好 B.打架 C.離婚 D.生氣Thewriter'sgrandmaallowedhertodomanythings.Whichofthefollowingisnotmentioned?A.Thewritercoulddipherfingersinthesugarbowl.B.Thewriterwasallowedtosipthecoffeefromhergrandma'scup.C.Thewritercouldsitonthetablewhilehavingmeals.D.Thewriterwasallowedtocollectcoinsinaglassjar.Forwhomdidthewriter'sgrandmasavehercoins?A.Forherson.B.Forhergrandchildren.C.Forthepoor. D.Forherself.Whatcanwelearnfromthepassage?A.Thewriterdislikedherchildhood. B.Thewritercomplainedaboutherparents.C.Thewritermissedhergrandmasomuch.D.Thewriterwantedtohavehergrandma'smoney.【答案(1)A(2)C(3)D(4)B(5)C【解析】【分析】文章大意：這篇短文主要介紹了作者祖母雖然沒有多少金錢或物質(zhì)，但是通過用心的為孫子（女）做的小事情，讓作者感到非常的溫暖，感受到濃濃的愛。（1）細(xì)節(jié)理解題。根據(jù)短文開頭WemovedawayfrommygrandmotherwhenIwaseightyearsold,可知作者八歲時(shí)和祖父母分開了，故選A。（2）詞義猜測(cè)題。根據(jù)上文Twoyearslatermymotherandfatherseparated我的父母分居及后文Ifeltasifmyworldwasfallingapart.作者感到世界分崩離析，可知父母離婚了，故選C。（3）細(xì)節(jié)理解題。根據(jù)lettingmedipmyfingersinthesugarbowl,lettingmesipthecoffeefromhercuporallowingmetositonthetableasIhadmeals.可知不包括在玻璃罐子里收集硬幣。故選D。（4）細(xì)節(jié)理解題。根據(jù)Ithoughtmygrandmacouldhaveusedthesecoinsherself,butshesavedthemtogiveuswhenwecametovisither可知祖母是為了孫子（女）贊硬幣。故選B。（5）細(xì)節(jié)理解題。根據(jù)作者對(duì)祖母溫情的回憶，可知作者非常愛自己的祖父母，非常想念她。對(duì)比選項(xiàng)，故選C?！军c(diǎn)評(píng)】閱讀考題中細(xì)節(jié)理解題和猜測(cè)詞義題屬于客觀題；主旨大意題和推理判斷題屬于主觀題。針對(duì)不同類型的題目，要在平時(shí)的練習(xí)過程中，結(jié)合具體的題目，給學(xué)生進(jìn)行解題方法的指導(dǎo)和講解。對(duì)于客觀題，要提醒他們閱讀時(shí)關(guān)注文章的細(xì)節(jié)，如時(shí)間，地點(diǎn)或一些具體數(shù)字，在選擇答案時(shí)，務(wù)必從原文中找到確切的依據(jù)。3.閱讀理解Asayoungwoman,mymotherworkedinthekitchenofalargefarmownedbyFannyCratty.Shewashardworkingandhadaspecialskillinmakingdeliciousstrawberryjam.AuntFannywassingleandhadnochildren.Shedidn'tliketosharelovewithothers.Ithoughtshewasverylonely,althoughshedidn'tmindit.Shehadaworkshopwheremymotherhelpedhermakethebeststrawberryjam,andeveryoneinourtownboughtit.ButauntFannyaskedmymothernottotelltherecipe（秘方）ofmakingthestrawberryjamtoothers.Whenthestrawberrieswereripe,myfamilywouldpickthemtogether.Wetalkedandlaughed,experiencingthefunofpickingstrawberries.ButauntFannyneverjoinedus.Shejustaskedustopickstrawberriesquicklyandmakemorestrawberryjamtomakemoremoneyforher.Eachpersoninourtownsaidthatshejustpaidattentiontomoneyratherthananythingelse.Whatapoorwoman!It'snousehavingtoomuchmoneybecauseshehadnofamilyandfriendstoshareherhappinessduringherlifetime.MaybeitwastherecipethatbroughtsuccesstoauntFanny.Buttome,itwasjustacommonrecipe.Moneycanmakeyoufeelrichforawhile,butitisthebeautifuldaysspentwithfamilyandfriendsthattrulymakeyourich.Whoownstherecipeofmakingthebeststrawberryjam?A.Thewriter'smother.B.Thewriter.C.AuntFanny.D.Fanny'smother.WhydopeopleinthetownthinkauntFannyispoor?Becausesheneededtoworkhardinherworkshop.Becauseshepaidattentiontonothingexceptmoney.Becauseshehadnoclosefriendstosharedhersuccess.Becauseshealwaysthoughtofhelpingothersratherthanherself.—Whatdoesthelastword“rich”meaninthispassage?—Itmeans.A.thesuccessofmakingstrawberryjamB.havingtherecipeandmuchmoneyC.thehappiness,one'sfamilyandfriendsD.owningabighouseandthelargefarm【答案】(1)A(2)C(3)C【解析【分析】短文大意：作者的媽媽擁有一種特殊的制作美味草莓醬的技巧。每年她幫助范妮姨媽做最好的草莓果醬，但范妮姨媽不讓她把制作草莓醬的配方告訴別人。鎮(zhèn)上的每個(gè)人都說范妮姨媽只關(guān)注錢而不是其他的東西。都認(rèn)為她可憐，因?yàn)樗龥]有家人和朋友在她的一生中分享她的幸福。而作者認(rèn)為使你真正富有的是與家人和朋友一起度過的美好時(shí)光。是親情與友情。(1)A細(xì)節(jié)理解題。根據(jù)短文中的句子“Shewashardworkingandhadaspecialskillinmakingdeliciousstrawberryjam.”她很勤勞，有一種特殊的制作美味的草莓醬的技巧?？芍髡叩膵寢寭碛兄谱髅牢兜牟葺u的食譜。答案為A。(2)C細(xì)節(jié)理解題。根據(jù)短文中的句子“Eachpersoninourtownsaidthatshejustpaidattentiontomoneyratherthananythingelse.Whatapoorwoman!It'snousehavingtoomuchmoneybecauseshehadnofamilyandfriendstoshareherhappinessduringherlifetime.”可知，除了錢之外他什么也不關(guān)注。都認(rèn)為她可憐，因?yàn)樗龥]有家人和朋友在她的一生中分享她的幸福。答案為C。(3)C詞意猜測(cè)題。根據(jù)短文最后的句子“butitisthebeautifuldaysspentwithfamilyandfriendsthattrulymakeyourich/使你真正富有的是與家人和朋友一起度過的美好時(shí)光。故答案為C。4.根據(jù)短文內(nèi)容，選擇正確答案。CIarrivedatmymother'shomeforourSaturdayfamilydinner.Thesmellsoffoodflewoverfromthekitchen.Mymotherwaspullingoutquiltafterquiltfromtheboxes,proudlyshowingmetheirbeauties.Iknewtheywereallmadeherself.ShewaspreparingforaquiltshowonTV.Whenwebegantofoldandputthembackintotheboxes,Inoticedsomethingatthebottomofonebox.Ipulleditout."What'sthis?"Iasked."Oh?"Momsaid,"That'sMama'squilt."Ispreadthequilt.Itlookedasifagroupofschoolchildrenhadmadethepiecestogether."Grandmothermadethis?"Iaskedinsurprise.Mygrandmotherwasamasteratmakingquilts.Thiscertainlydidn'tlooklikeanyofthequiltsshehadmade."Yes,rightbeforeshedied.Ibroughtithomewithmelastyearandmadesomechanges,"Momsaid,"I'mstillworkingonit.See,thisiswhatI'vedonesofar."Ilookedatitmoreclosely.Shehadmadealinestraight.Atthecenterofthequilt,shehadstitchedapieceofclothwiththesewords:"Mymothermademanyquilts.Shedidn'tgetalllinesstraight.ButIthinkthisisbeautiful.Iwanttoseeitfinished.Herlastquilt.""Oh,thisissonice,Mom."Isaid.Iwassurenowthatbycompletingmygrandmother'squilt,mymotherwashonoringherownmother.IrealizedthatIheldinmyhandsafamilytreasure.Itstartedwiththelovinghandsofonewoman,andcontinuedwiththelovinghandsofanother.Whenthewritergothome,hismother.A.wascookingdinner B.waspreparingforaquiltshowC.waswatchingTV D.waschanginghermama'squiltHowdidthewriter'smotherdealwithhermama'slastquilt?ShetookittoaTVshow.Shebroughtithomeandmadesomechanges.Shegaveittoherdaughterasafamilytreasure.Shemadesomechangeswithagroupofchildren.Theword"stitched"inthesixthparagraphprobablymeansinChinese.A.畫出 B.剪開 C.寫下 D.縫上WhichofthefollowingisTRUEaccordingtothepassage?Thewriterwantedtoknowwhattheirfamilytreasurewas.Thewriter'smotherwantedtolearnhowtomakeabeautifulquilt.Thewriter'smotherwantedtohonorherownmamabyfinishingthequilt.Thewriter'smotherwantedtotakehermama'squiltstotheshow.【答案】(1)B(2)B(3)D(4)C【解析【分析】本文通過母親的被子描寫子女對(duì)母愛的緬懷和傳承。⑴細(xì)節(jié)理解。根據(jù)第一段Mymotherwaspullingoutquiltafterquiltfromtheboxes,proudlyshowingmetheirbeauties.Iknewtheywereallmadeherself.ShewaspreparingforaquiltshowonTV可知媽媽把所有的被子者B拿出來要參加一個(gè)電視上的被子展覽。故選B。⑵細(xì)節(jié)理解。根據(jù)第五段"Yes,rightbeforeshedied.Ibroughtithomewithmelastyearandmadesomechanges,"可知是在作者的外祖母去世前做的，作者的母親去年把它拿回家進(jìn)行了修改。故選B。⑶詞義猜測(cè)。根據(jù)句意：在被子的中心，她…?一塊有字的布。故選D。⑷細(xì)節(jié)理解。根據(jù)最后一段Iwassurenowthatbycompletingmygrandmother'squilt,mymotherwashonoringherownmother可知作者的母親通過完成她媽媽的被子以紀(jì)念她。故選C。【點(diǎn)評(píng)】這是一篇記敘文，快速瀏覽文章，弄清作者寫作的意圖。答題時(shí)注意問題中的關(guān)鍵詞在文章中的準(zhǔn)確定位，根據(jù)關(guān)鍵詞查找信息，切忌主觀臆斷，憑感覺做題5.閱讀理解TherearefewfamiliesintheUnitedStatesthatdonothaveeitheraradiooratelevisionset.Bothofthemhavebecomenecessarypartsofourdailylife,keepingusAmericansfilledwiththenewsoftheday,teachingusinmanyfieldsofinterest,andmakingushappywithsinging,dancingandacting.Marconi,theItalianinventor,whogaveustheradio,probablydidn'tknowhowmuchhisgreatinventionwouldhavedonefortheworldintheyearstocome.Radiohad,perhapsdoneasmuchasanyothercommunicationtool.Thingsoftheworldcanbereportedtopeopleeverywhereafewsecondsaftertheyhappen.Travellersinout-of-the-wayplaces,shipsatseaandevenastronautsaroundtheEarthareabletokeepintouchwitheachotherbyradio.Televisionisanotherimportantinvention.Itletsusseeaswellasheartheactor.Sinceitsappearance,TVhasdoneagreatdealinthedailylife