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三角形在正方形网格中的位置如图所示，则sinα的值是 ．
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如图的2×4的正方形网格中△ABC的顶点都在小正方形的格点上这样的三角形称为格点三角形在网格中与△A
2个
3个
4个
5个
如图1所示正方形网格中的△ABC若小方格边长为1则△ABC是
直角三角形
锐角三角形
钝角三角形
以上答案都不对
正方形网格中小格的顶点叫做格点小华按下列要求作图①在正方形网格的三条不同实线上各取一个格点使其中任意
在如图所示的正方形网格中每个小正方形的边长为1格点三角形顶点是网格线的交点的三角形ABC的顶点A.C
1如图在6×6的网格中请你画出一个格点正方形ABCD使它的面积是10.2如图A.B.是4×5的网格中
下列刀片形状中适用性逐渐增强的排列是
圆形，三角形，菱形，正方形
菱形，三角形，正方形，圆形
三角形，圆形，菱形，正方形
圆形，正方形，三角形，菱形
如图的2×4的正方形网格中△ABC的顶点都在小正方形的格点上这样的三角形称为格点三角形在网格中与△A
2个
3个
4个
5个
在3×3的正方形网格中有一个以格点为顶点的三角形阴影部分如图所示请你在图①图②图③中分别画出一个与该
在如图所示的正方形网格中每个小正方形的边长为1格点三角形顶点是网格线的交点的三角形ABC的顶点A.C
在如图所示的正方形网格中每个小正方形的边长为1格点三角形顶点是网格线的交点的三角形ABC的顶点A.C
在如图所示的正方形网格中每个小正方形的边长为1格点三角形顶点是网格线的交点的三角形ABC的顶点A.C
在如图所示的正方形网格中每个小正方形的边长为1格点三角形顶点是网格线的交点的三角形ABC的顶点A.C
如图所示A.B.是4×5网络中的格点网格中的每个小正方形的边长为1请在图中清晰标出使以A.B.C为顶
如图正方形网格中每个小正方形的边长为1则网格上的△ABC是______三角形.
在如图所示的正方形网格中每个小正方形的边长为1格点三角形顶点是网格线的交点的三角形ABC的顶点A.C
下列刀片形状中通用性逐渐增强的排列是
A . 圆形 三角形 菱形 正方形
B. 菱形 三角形 正方形 圆形
C. 三角形 圆形 菱形 正方形
D .圆形 正方形 三角形 菱形
在正方形网格中每个小正方形的边长均为1个单位长度三角形ABC的三个顶点的位置如图所示现将三角形ABC
在如图的正方形网格中有一个三角形ABC作出三角形ABC关于直线MN的轴反射图形若网格上最小正方形边长
如图的2×4的正方形网格中△ABC的顶点都在小正方形的格点上这样的三角形称为格点三角形在网格中可画出
下列刀片形状中通用性逐渐增强的排列是
圆形，三角形，菱形，正方形
菱形，三角形，正方形，圆形
三角形，圆形，菱形，正方形
圆形，正方形，三角形，菱形
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6分Moviemakersatonetimeworriedthattheymightbeputoutofbusinessbytelevision.Recentlyhowevermoreandmorepeoplehavebeengoingtothemovies.ThismaybepartlybecausetheeconomicsituationinAmericahasworsened.Whenatthemoviespeopleforgettheirtroublesastheygetinvolvedinthestoryonthescreen.Alsodirectorshaverecentlybeenproducingpicturesthatlargenumbersofpeoplewanttosee. Americansinthemillionsarereturningtotheirloveaffairwiththemovies.MotionpictureindustryexpertsseetwomainfactorsresponsibleforthisanincreasedneedbyAmericanstoescapefromeconomicworriesandalargenumberofnewmovieswithbroadaudienceappeal. Moviemakersadmitthattheirrisingpopularityispartlytheresultofpooreconomicconditionswhichtraditionallybringanincreaseintheaterattendance.WhenpeoplearefearfulaboutthefuturetheylookforescapecommentsJackValentipresidentoftheMotionPictureAssociationofAmerica.Inashadedtheaterwitha65﹣footscreenyouloseyourselffortwoandahalfhoursandpeoplefindthisbeneficial. 1Whatdidmoviemakersworryaboutbefore? A.Thatnoonewouldgotothecinema. B.Thatmoviescouldn'tbeabusinessanymore. C.Thattheirmoviesmightbeplayedontelevision. D.ThatpeoplepreferredwatchingTVtoseeingfilms. 2Whyaresomanypeoplegoingtoseemoviesnow? A.Becausepeoplenowhavemuchmoremoney. B.Becausepeoplehavetroubles. C.Becausepeoplewantedtoescapefromreallife. D.BecausewatchingmoviesisnowmuchcheaperthanwatchingTV. 3What'sthepassagemainlyabout? A.ThatmoreAmericanpeoplearewatchingmoviesthanbefore. B.Thattelevisionwilltaketheplaceofmovies. C.America'seconomicdepression. D.ThatAmericansprefertowatchmoviesratherthanwatchTV.
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8分LongagotherewasasmallvillageinCambodia.Thepeoplewerepoor.Howevertheywerenotunhappy.Afteralltheirforefathershadlivedinthesamewayforcenturies. Thenonedaysomevisitorsfromthecityarrived.Theytoldthevillagersthereweresomepeopleelsewherewholikedtoeatfrog'slegs.Howevertheydidnothaveenoughfrogsoftheirownandsotheywantedtobuyfrogsfromotherplaces. Thisseemedlikemoneyfornothing.Thereweremillionsoffrogsinthefieldsaroundandtheywerenousetothevillagers.Alltheyhadtodowastocatchthem.Agreementwasreachedandthechildrenweresentintothefieldstocatchfrogs.Everyweekatruckarrivedtocollectthecatchandhandoverthemoney.Forthefirsttimethepeoplewereabletodreamofabetterfuture.Butthedreamdidn'tlastlong. Thechangewashardlynoticedatfirstbutitseemedasifthecropswerenotdoingsowell.Moreworryingwasthatthechildrenfellillmoreoftenandthereseemedtobemoreinsectsaroundlately. Thevillagersdecidedthattheycouldn'tjustwaittoseethecropsfailingandthechildrengettingweak.Theywouldhavetousethemoneyearnedtobuypesticides杀虫剂andmedicines.Soontherewasnomoneyleft. Thenthepeoplerealizedwhatwashappening.Itwasthefrog.Theyhadn'tbeenuseless.Theyhadbeendoinganimportantjob﹣﹣﹣eatinginsects.Nowwithsomanyfrogskilledtheinsectswereincreasingmorerapidly.Theyweredamagingthecropsandspreadingdiseases. Nowthepeoplearestillpoor.Butintheeveningstheysitinthevillagesquareandlistentosoundsofinsectsandfrogs.Thesesoundsofthenightnowhaveamuchdeepermeaning. 1FromParagraph1welearnthatthevillagers. A.workedveryhardforcenturies B.werepoorbutsomewhathappy C.dreamedofhavingabetterlife D.livedadifferentlifefromtheirforefathers 2Whydidthevillagersagreetosellfrogs? A.Thefrogswereeasymoney. B.Theyneededmoneytobuypesticides. C.Theywantedtopleasethevisitors. D.Thefrogsmadetoomuchnoise. 3Whatmightbethecauseofthechildren'ssickness? A.Thecropsdidn'tdowell. B.Thepesticideswereoverused. C.Thevisitorsbroughtindiseases. D.Thereweretoomanyinsects. 4Whatcanweinferfromthelastsentenceofthetext? A.Happinesscomesfromapeacefullifeinthecountry. B.Healthismoreimportantthanmoney. C.Theharmony和谐betweenmanandnatureisimportant. D.Goodolddayswillneverbeforgotten.
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20分阅读下面短文根据其内容写一篇60词左右的内容提要. Manyofusdotherevisionworkalonebyshuttingourselvesinaroomwithabook.Shuttingyourselfawaycanmakeyoulearntohatestudying.Thisleadstoasituationwhereinsteadofbeingabletopayattentiontoyourworkyouaretroubledbyhowunfairitisthatyoumuststudy.Whenyouhateyourworkit'sverydifficulttomakeyourselflikeanddothework.Thiscanbepartofaviciouscycle恶性循环thatyouarecaughtinanineffectiverevisionyourpoorprogressmakesyoudisliketherevisionworkmore. Justbeingaroundotherpeoplereallyhelpsfightagainstfeelingsoflonelinessandthankfullyit'sperfectlypossibletoworkwithapartner.Wejustneedtolearnhowtodealwithdistractions使人分心的事物. It'snotnecessarytoavoidallpeoplearoundjustpeoplehavingnothingdo.Studyinginthesameroomwithsomeonewhoisironing熨烫衣服orworkingoutisperfectlypossible.Peoplewhoareboredandhasnothingtodohoweverareterribletoworkaround.Theyoftentrytokeepothersinconversation. It'salsoagoodideatoavoidthecompany陪伴ofpeopleinvolvedinactivitiesthatyoulikedoingverymuch.Workingwhilesittingnexttosomeoneplayingvideogamesismuchmorelikelytoendwithanewhighscoreinthegamethanafewhoursofhighqualityrevision. Ifbeingaroundothersmeansworkinginanoisyenvironmentapairofheadphonesandsomebackgroundmusiccankeepoutevennoisychildren. Whenyou'restudyingforabigexamitseemslikeyourwholelifeistakenupwithstudy.Friendsandfamilycanlessenfeelingsofisolation孤立.Andconnectingwithotherpeoplemakesushappysoit'simportantnottogivethatupandtomakesurethatwetakethetimebewithotherpeople.
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20分Iwillalwaysappreciatemyfatherandhisfaith. AsIheldmyfather'shandsonenightIcouldn'thelpbutnoticetheircalluses老茧androughness.Hishandstellthestoryofhislifeasa1includingallhisstruggles. One2Irememberadrought旱灾hitOntarioturningitintoaburningdesert.OnoneofthosehotmorningsIwaspickingsweetcornwithmydadtofillthelast3fromthegrocerystore.Fiftydozenwasallweneededwhich4tooktwentyminutes.Thatmorninghowevertheprocessdidn'tgoquickly.Afterfortyminutesof5walkinginthefieldwe6neededtwentydozen.Iwascompletelyfrustratedandangry.7thebasketheavilyIdeclaredIfthestorewantsitslasttwentydozentheycanpickitthemselves!Dadlaughed.Justthinkmylittlegirlonly8dozenleftforeachof9andthenwe'redone.SuchisDad﹣﹣﹣﹣whateverproblemhe10henevergivesup. 11thedisastrouseffectsofthedroughtwerefeltalloverourcounty.Itwasachallengingtimeforeveryone12Dadremainedoptimistic.He13tobegratefulforotherthingslikegoodhealthandfoodonourplate.OnlythendidItrulybeginto14Dadandhisfaiththatguidedusthroughthehardtimes. Dadisalsoalivingexampleofreal15.Fromdawntoduskheworkscountlesshoursto16ourfamily.Healwaysputsourhappiness17hisownandneverfailstocheermeonatmysportsgames18hisexhaustion疲劳afterlongdays.Hislovingandselflessnaturehasinspiredmetobecomemoresympatheticand19othersfirst. Dadthelife20Ihavelearnedfromyouwillstaywithmeforever.Youaremyfatherteacherfriendandmostimportantlymyhero. 1A.teacher B.grocer C.gardener D.farmer 2A.spring B.summer C.autumn D.winter 3A.gap B.form C.order D.position 4A.usually B.repeatedly C.finally D.really 5A.happily B.aimlessly C.easily D.hardly 6A.yet B.even C.still D.nearly 7A.Cutting B.Taking C.Picking D.Dropping 8A.five B.ten C.twenty D.fifty 9A.them B.you C.me D.us 10A.bringsup B.meetswith C.worksout D.thinksabout 11A.Thankfully B.Strangely C.Hopefully D.Unfortunately 12A.or B.for C.but D.so 13A.happened B.stopped C.aimed D.continued 14A.face B.examine C.appreciate D.question 15A.love B.pride C.friendship D.honesty 16A.settle B.support C.start D.impress 17A.before B.after C.beside D.under 18A.intermsof B.incontrolof C.inspiteof D.inplaceof 19A.putting B.cheering C.thinking D.turning 20A.lessons B.styles C.ways D.history
7.5分WiththeRioOlympicgamesgoingoncupping拔罐isbecomingwellknownallovertheworld. Cuppingcomesinseveralforms.Withdrycuppingtherapists特定疗法的技师usecupsthatsticktobutdon'tbreaktheskin.Theycanusecupswithmechanicaldevicessuchashandorelectricalpumpstocreatesuction吸.Ortheycanusefirecupswhichusetheirheatforsuction. Inwetcuppingatherapistwillfirstpuncturetheskinusingwhatlookslikeatoothbrushwithlittleneedlesthesuctioncupsslowlyfillwithblood. Thebasicideaisthatcreatingbruises淤青willencouragethebodytohealmorequicklyinthosetargetedareas. Whetheryou'reaworld﹣classathletecompetingintheRioOlympicsorajournalistbackandneckpaincanberealoccupationalhazards职业病困扰. TotreattheirsoremusclesU.S.competitorslikefamousswimmerMichaelPhelpsandgymnastAlexNaddourhaveallturnedtoanancientformoftreatmentcalledcupping. Thetechniqueinvolvesplacingsmallglasscupsontheskinthenpullingthemfromthebodytorelaxthemusclesandboostbloodflow. ThesuctioncupsleavebehindcircularbruisesliketheonesPhelpsshowedoffonSundaynightinthemen'sfreestylerelayfinals. WhilecuppingisarelativelycommonpaintreatmentinEasternculturesit'sstillarareandlittle﹣studiedpracticeintheUnitedStates. ButwithOlympiansshowingofftheirpurplediscslikegoldmedalscuppingcouldsoonbeverypopularwithathletesdeskjockeysandotherAmericanssufferingbonejointandmusclepainsaidDr.CharlesKimaspecialistatNewYorkUniversity'sLangoneMedicalCenter. PerhapssomethinglikethiswillopenuptheAmericanpublicandmaybeencouragefurtherresearchandoversightofcuppingasapotential潜在的treatmenthetoldMashable. 1Howmanywaysofcuppingaltogetherarementionedintheparagraph? A.One. B.Three C.Five D.Seven 2Whatdoestheunderlinedwordpunctureinthesecondparagraphprobablymean? A.makingcutsontheskinwithaknife B.makingtinyholesintheskinwithsharppoints C.makingnotseriousburnsontheskinwithfire D.makingclearbruisesontheskinwithasuctioncup 3Whichofthefollowingiscorrectaccordingtothepassage? A.Americanshavecarefullystudiedthetreatmentwithcupping. B.Cuttingisaverypopulartreatmentinthewesternworld. C.AlexNaddourisasciencereporterwhohaswrittenalotofreportsaboutcupping. D.Inwetcuppingtherapistsstillusehandpumpsorfiretocreatesuction.
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15分Iamextremelyhonoredtobeselectedasawinnerofthisyear'sLasker﹣DeBakeryClinicalMedicalResearchAward.Iexpressmywholeheartedthankstothejurymembersfortherecognition认可ofmy1contributetothediscoveryofQinghaosu青蒿素formalaria疟疾treatment. InmychildhoodIwitnessedoccasionswhenpatients2rescuebyfolkChinesemedicinerecipes.Howeverneither3Idreamthenofsuchacloselinkofmywholelifetoresearchingthoseamazingherbs草药norcouldIimaginethenthattodayIwouldexperiencesuchanexcitingmomentwhenmyresearchhasbeenhighlypraisedbytheinternational4sciencecommunity.Istartedresearchonherbalmedicinesin1955.My5curiousaboutherbsturnedintoastrongmotivationaftercollegetrainingontraditionalChinesemedicine6arrangebytheinstitute.EquippedwithasoundknowledgeinbothtraditionalChinesemedicineandmodernpharmaceuticalsciences制药学we7successaccomplishedthediscoveryanddevelopmentofQinghaosufromQinghao. ThediscoveryofQinghaosuis8gifttomankindfromtraditionalChinesemedicine9hasservedpeopleinChinaandotherAsiancountriesformanycenturies.Continuousexplorationanddevelopmentoftraditionalmedicinewill10doubtbringmoremedicinestotheworld.…
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8分Theworld'searliestknownfishhooks钩showthathumansfishedintheopenseaformuchlongerthanpreviouslythought.Paststudieshaveshownthatearlyhumanswereabletocrosstheopenoceanasfarbackas50000yearsagobutevidencethattheycouldfishwhileintheopenseadatedbackonlyto12000yearsago. Inmostareasoftheworldevidenceforourearlyancestors'coastalexploitation开发wasdrownedbyrisingsealevelssaidresearcherSueO'Connor. NowO'Connorandhercolleagueshavefoundevidenceofprehistoricfishingtoolsandtheremainsoflargefishsuchastuna金枪鱼atacaveshelterknownasJerimalailocatedintheSoutheastAsianislandnationofEastTimor.Theirdiscoveryuncoveredfishinghooksmadefrombonethatdatebacktoabout42000yearsago. MIfspossiblethatpeoplecaughtthetunainthedeepchannelthatliesoffthecoastoftheJerimalaishelterO'Connorsaid. Thesitefirstuncoveredin2005alsoincludedbonepointsshellbeadstheremainsoffishturtlesbatsandbirdsandnearly10000stonetools.TheislandofTimorhasveryfewlandanimalsoverallandonlysmallbirdscalltheislandhomeperhapsexplainingwhytheancientpeopleherewentfishing.Abouthalfthefishremainsatthesitecamefromfishsuchastuna.Catchingsuchfast﹣movingfishrequiresmuchplanningandcomplextechnologysuggestingthatearlyhumansdevelopedtheseskillsearlierthanpreviouslythought. Someotherscientistsmightsaythatmostofthefishbonesseenarefromyoungfishandthusmighthavebeencaughtmoreeasilyoffthecoastasopposedtoinopenwaters.Whilethismaybethecaseit'sstillnoteasytocatchtuna一itrequiresnetssetindeepwater. 1AccordingtoSueO'Connorevidenceforourearlyancestors'coastalexploitation. A.indicatedtunawasacommondishforourearlyancestors B.showedthetrendofseamovement C.wasburiedincaveshelters D.wasdifficulttofind 2SueO'Connor'sstudyadvancedthedateofhumans'fishingintheopenseaby. A.50000years B.42000years C.30000years D.12000years 3WhydidtheancientpeopleontheislandofTimorgofishingaccordingto. A.Theislandwastoosmallforthelargepopulation. B.Therewerefewanimalsonlandforfood. C.Itwasveryeasytocatchfisharoundtheisland. D.Peopletherelovedeatingfish. 4Whatcanwelearnfromthelastparagraph? A.SomescientistshavestudiedthesamecasemuchearlierthanSueO'Connor. B.SomescientistsdoubtedSueO'Connor'sstudy. C.ItwasnoteasyforSueO'Connortocarryoutthestudy. D.TheresultofSueO'Connor^studyneededtobetestedindeepwater.
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