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下表中，如果x和y成正比例，“”处填( )；如果x和y成反比例，“”处填( )。
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已知:y=y1+y2y1与x成正比例y2与x2成正比例当x=1时y=6当x=3时y=8求y关于x的解
下列说法中不成立的是
在y=3x-1中，y+1与x成正比例
在y=
中，y与x成正比例
在y=2（x+1）中，y与x+1成正比例
在y=x+3中，y与x成正比例
如果5x=y那么x和y
成正比例
成反比例
不成比例
已知9x=y/3则x和y
成正比例
成反比例
不成比例
若5y＋2与x－3成正比例则y是x的.
正比例函数
一次函数
没有函数关系
以上答案都不对
如果y与x成正比例z与y成反比例则z与x成．
若2y＋1与x－5成正比例则
y是x的一次函数
y与x没有函数关系
y是x的函数，但不是一次函数
y是x的正比例函数
.在正比例函数y=m-8x中如果y随自变量x的增大而减小那么正比例函数y=8-mx的图象在第象限.
如果y+1与x+1成正比例给出如下两种说法①当比例系数为1时y是x的正比例函数②y总是x的一次函数
①②都正确
①②都错误
只有①正确
只有②正确
y+2与x+1成正比例且当x=1时y=4则当x=2时y=__________.
已知y与x+2成正比例且当x=1时y=3则y与x之间的函数关系式是__________.
如果x=4y则x和y
成正比例
成反比例
不成比例
已知ｙ与ｘ－３成正比例当ｘ＝４时ｙ＝—３ｙ与ｘ之间的函数关系式为
关于函数y=2x+3下列说法正确的有 ①y与x成正比例 ②y与2x成正比例 ③y与x+3成正比例
②③
③④
③④⑤
④⑤
若y与x成正比例x与z成反比例则y与z之间的关系是.
成正比例
成反比例
不成正比例也不成反比例
无法确定
如果x和y成正比例空格里填如果x和y成反比例空格里填．
已知y=y1+y2y1与x成正比例y2与x-1成正比例且x=3时y=4x=1时y=2求y与x之间的
如果x和y是两种相关联的量且x÷y=4x和y都不等于0则x和y
成正比例
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不成比例
已知y1与x成正比例y2与x+2成正比例且y=y1+y2当x=2时y=4;当x=-1时y=7求y与x
x和y成正比例x和z成正比例则x和z成比例．
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DearAmy IhaveaproblemandI’mwritingaskyou1. foranadvice.Thisisasecretsoldon’ttellanybodyelse.2. MycousinandIusedtogettingalongverywelland3. weweregoodfriend.Wewereplanningtospend4. partofthewinterholidaytogetherbutnow5. Idon’tthinkIwanttoinviteherhome.6. RecentlyIhasdiscoveredthathe’sstartedtotell7. lies.WhenItoldhimthiswaswrongtotelllies8. buthejustlaughedatme.TheproblemisshouldI9. tellhisparentsorhisteacherorshouldIkeepquietly.10. 第2空应
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这是某学校通过校长意见箱收集到的一学生的意见和建议请阅读下文根据所提的信息完成下列表格 ZhangHongyinggirl15 Iwanttomakeourlunchtimelonger.Atthemomentlunchtimeisshort．Mostofmyclassmateswouldliketodotheirhomeworkduringthistime.Butiftheydon’tgetagoodresttheywon’thaveenoughenergyfortheafternoon.So1wouldliketohavemoretimeandhavetimetotakeanap午睡afterlunch.Thatwaywe’lllearnbetterintheafternoon. ZhaoPengrangirl15 IwouldliketohavemorechancestotalkinEnglish.NowtheEnglishclassesarenotenoughforustopracticespokenEnglish.Ithinkwe’dbetterhaveonemorningaweekatleasttohavespokenEnglishlessonsinordertoimproveourEnglish. ZhouJianchengboy15 Myideawouldbetohavemorefashionableschooluniforms.IfIweretheheadmasterIwouldaskthestudentstodesigntheuniformsthemselves.Wecouldhaveacontestamongstudentdesigners.Thenwecouldaskotherstochoosetheirfavorites.Thiswaywe’llbeabletowearwhatwelikebest.Howniceitwouldbeforusyoungpeople! InformationCard WhatwouldZhaoPengranliketodoinordertoimproveEnglishi 1. What’sZhouJiancheng’sidea 2. WhatwouldZhangHongyingliketodoafterlunch 3. Whatdomoststudentsdoduringlunchtime 4. Howoldarethestudents 5. 第2空应
DearAmy IhaveaproblemandI’mwritingaskyou1. foranadvice.Thisisasecretsoldon’ttellanybodyelse.2. MycousinandIusedtogettingalongverywelland3. weweregoodfriend.Wewereplanningtospend4. partofthewinterholidaytogetherbutnow5. Idon’tthinkIwanttoinviteherhome.6. RecentlyIhasdiscoveredthathe’sstartedtotell7. lies.WhenItoldhimthiswaswrongtotelllies8. buthejustlaughedatme.TheproblemisshouldI9. tellhisparentsorhisteacherorshouldIkeepquietly.10. 第10空应选择
D PeopleoftensaythattheEnglishman’shomeishiscastle.Theymeanthatthehomeisveryimportantandpersonaltohim.MostpeopleinBritainliveinhousesratherthanflatsandmanypeopleowntheirhomes.Thismeansthattheycanmakethemindividual个体的;theycanpaintthemandchangetheminanywaytheylike.Mosthouseshaveagardenevenifitisaverysmalloneandthegardenisusuallyloved.Thehouseandthegardenaretheprivate私人的spaceoftheindividual. Peopleusuallyliketomarktheirspace.AreyousittingnowinyourhomeoronatrainHaveyoumarkedthespacearoundyourselfasyoursIfyouareonthetrainyoumayputyourcoatorsmallbagontheseatbesideyou.Ifyoushareaflatyoumayhaveonecornerorchairwhichisyourown. OnceIwastravellingonatraintoLondon.Iwasinasectionforfourpeopleandtherewasatablebetweenus.Themanontheoppositesidetomehadhisbriefcaseonthetable.Therewasnospaceonmysideofthetableatall.Iwasangry.Maybehethoughtthatheownedthewholetable.IhadreadabookaboutnonverbalcommunicationsoItookvariouspapersoutofmybagandputthemonhisbriefcase!WhenIdidthishestiffenedandhiseyesnearlypopped瞪出outofhishead.Ihadinvaded侵犯hisspace!AfewminuteslaterItookmypapersoffhiscaseinordertoreadthem.Heimmediatelymovedhiscasetohissideofthetable.Ofcourseitispossiblethathejustwantedtobehelpfultome! Ifyouarevisitinganothercountryyoumayfeelthatyoudon’thaveanyprivatespace.Hotelroomslookmuchthesameineverycountryintheworld.Alldaylongyousharepublicspaceswithotherpeople.Youseethelocalpeopleintheirprivatespacesandyoufeellonelyand"outside".Localpeoplecancreatetheirprivatespacesbytalkingaboutthingsyoudon’tknowabout.Andyouevenfeelthattheylikeyoutobeoutsidethemsothattheywillenjoybeinginsideevenmore!Thisisoneofthedifficultiesofbeingatraveller!Butifyouunderstanditthenithelpsyou.Haven’tyouenjoyedbeingpartofagroupand"owning"abitofspace Themainpurposeofthepassageistotellreadersto.
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DearAmy IhaveaproblemandI’mwritingaskyou1. foranadvice.Thisisasecretsoldon’ttellanybodyelse.2. MycousinandIusedtogettingalongverywelland3. weweregoodfriend.Wewereplanningtospend4. partofthewinterholidaytogetherbutnow5. Idon’tthinkIwanttoinviteherhome.6. RecentlyIhasdiscoveredthathe’sstartedtotell7. lies.WhenItoldhimthiswaswrongtotelllies8. buthejustlaughedatme.TheproblemisshouldI9. tellhisparentsorhisteacherorshouldIkeepquietly.10. 第8空应选择
ELastyearShanghai-bornCharlesK.KaoandtwoNorthAmericanscientistsgotthe2009NobelPrize诺贝尔奖inPhysicstogether.TheirworkmadetheInternetcomeintoanewage.Kao77wasborninShanghaiin1933.Heisfamousforfindingouthowtotransmit传输lightsignals信号overlongwaysthroughglassfibers玻璃纤维asthinasahumanhair.HisworkmakestheInternetinformationtransmitfasteraroundtheworld.Kaowasvicechancellor副校长oftheChineseUniversityofHongKongfrom1987to1996.Hedoesn’tworkandlivesinHongKongnow.TheChinesepeoplewerepleasedtolearnthegoodnews.ThepeopleofHongKongandIsendourcongratulationstoKaoonreceivingtheprize...Kaoisalsoatruegentleman.WearegreatlyproudtohavesuchanexcellentpersoninHongKong.ZengYinquanoncesaid.WillardBoyleaCanadianAmericanandGeorgeSmithoftheUnitedStatesgottheotherhalfoftheprize.Howmanyscientistsgotthe2009NobelPrizeinPhysicstogether
Annalivedonthesideofavalley山谷.OnewintertherewasaverybigfloodandalotofhousesdownbelowAnna’shousewerewashedaway.Anna’shousewashighenoughtoescapethefloodsowhenthewaterhaddisappearedandtheotherhouseswerestandingtherewithnoroofsandwallsandallcoveredwithmudherhousewasstillquiteallright.ThatyearAnna’swasverylucky. HerhousewasquitesmallandtherewereonlytwosmallbedroomsherhusbandwasdeadwhenthechildrenwereveryyoungandshehadfourchildrenbutAnnatookinoneofthefamiliesthathadlosteverythinginthefloodandshesharedherhomewiththemuntilitwaspossibleforthemtorebuildtheirhouse. Anna’sfriendswereverypuzzled困惑whentheysawAnnadothis.TheycouldnotunderstandwhyAnnawantedtogiveherselfsomuchmoreworkandtroublewhenshehadalreadyquitealotofchildrentosupport.Lifewouldbeevenharderwhenanotherfamilyjoinedthem. "Well"Annaexplainedtoherfriends"attheendoftheFirstWorldWarawomaninthetownwhereIthenlivedinGermanyfoundherselfverypoorbecauseherhusbandhadbeenkilledinthewarandshehadalotofchildrenasIhavenow." "ThedaybeforeChristmasthiswomansaidtoherchildren’Wewon’thavemuchforChristmasthisyearsoIamgoingtogetonlyonegiftforallofusandIamsurewewillallbegladtohaveit.NowI’llgoandgetit.’Shecamebackwithalittlegirlwhowasevenpoorerthantheyandwhohadnoparents.’Hereisourgift’shesaidtoherchildren." "Thechildrenwereveryexcitedandhappytogetsuchagift.TheywelcomedthelittlegirlandshegrewupastheirsisterIwasjustthatChristmasgift./ WhywasAnnawillingtohelpthepoor
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ELastyearShanghai-bornCharlesK.KaoandtwoNorthAmericanscientistsgotthe2009NobelPrize诺贝尔奖inPhysicstogether.TheirworkmadetheInternetcomeintoanewage.Kao77wasborninShanghaiin1933.Heisfamousforfindingouthowtotransmit传输lightsignals信号overlongwaysthroughglassfibers玻璃纤维asthinasahumanhair.HisworkmakestheInternetinformationtransmitfasteraroundtheworld.Kaowasvicechancellor副校长oftheChineseUniversityofHongKongfrom1987to1996.Hedoesn’tworkandlivesinHongKongnow.TheChinesepeoplewerepleasedtolearnthegoodnews.ThepeopleofHongKongandIsendourcongratulationstoKaoonreceivingtheprize...Kaoisalsoatruegentleman.WearegreatlyproudtohavesuchanexcellentpersoninHongKong.ZengYinquanoncesaid.WillardBoyleaCanadianAmericanandGeorgeSmithoftheUnitedStatesgottheotherhalfoftheprize.WhichofthefollowingisNottrue
Annalivedonthesideofavalley山谷.OnewintertherewasaverybigfloodandalotofhousesdownbelowAnna’shousewerewashedaway.Anna’shousewashighenoughtoescapethefloodsowhenthewaterhaddisappearedandtheotherhouseswerestandingtherewithnoroofsandwallsandallcoveredwithmudherhousewasstillquiteallright.ThatyearAnna’swasverylucky. HerhousewasquitesmallandtherewereonlytwosmallbedroomsherhusbandwasdeadwhenthechildrenwereveryyoungandshehadfourchildrenbutAnnatookinoneofthefamiliesthathadlosteverythinginthefloodandshesharedherhomewiththemuntilitwaspossibleforthemtorebuildtheirhouse. Anna’sfriendswereverypuzzled困惑whentheysawAnnadothis.TheycouldnotunderstandwhyAnnawantedtogiveherselfsomuchmoreworkandtroublewhenshehadalreadyquitealotofchildrentosupport.Lifewouldbeevenharderwhenanotherfamilyjoinedthem. "Well"Annaexplainedtoherfriends"attheendoftheFirstWorldWarawomaninthetownwhereIthenlivedinGermanyfoundherselfverypoorbecauseherhusbandhadbeenkilledinthewarandshehadalotofchildrenasIhavenow." "ThedaybeforeChristmasthiswomansaidtoherchildren’Wewon’thavemuchforChristmasthisyearsoIamgoingtogetonlyonegiftforallofusandIamsurewewillallbegladtohaveit.NowI’llgoandgetit.’Shecamebackwithalittlegirlwhowasevenpoorerthantheyandwhohadnoparents.’Hereisourgift’shesaidtoherchildren." "Thechildrenwereveryexcitedandhappytogetsuchagift.TheywelcomedthelittlegirlandshegrewupastheirsisterIwasjustthatChristmasgift./ WhendidAnnaliveinGermany
如图△ABC中∠BAC=70°∠ABC=45°点O是△ABC的外接圆的圆心则∠AOB等于
这是某学校通过校长意见箱收集到的一学生的意见和建议请阅读下文根据所提的信息完成下列表格 ZhangHongyinggirl15 Iwanttomakeourlunchtimelonger.Atthemomentlunchtimeisshort．Mostofmyclassmateswouldliketodotheirhomeworkduringthistime.Butiftheydon’tgetagoodresttheywon’thaveenoughenergyfortheafternoon.So1wouldliketohavemoretimeandhavetimetotakeanap午睡afterlunch.Thatwaywe’lllearnbetterintheafternoon. ZhaoPengrangirl15 IwouldliketohavemorechancestotalkinEnglish.NowtheEnglishclassesarenotenoughforustopracticespokenEnglish.Ithinkwe’dbetterhaveonemorningaweekatleasttohavespokenEnglishlessonsinordertoimproveourEnglish. ZhouJianchengboy15 Myideawouldbetohavemorefashionableschooluniforms.IfIweretheheadmasterIwouldaskthestudentstodesigntheuniformsthemselves.Wecouldhaveacontestamongstudentdesigners.Thenwecouldaskotherstochoosetheirfavorites.Thiswaywe’llbeabletowearwhatwelikebest.Howniceitwouldbeforusyoungpeople! InformationCard WhatwouldZhaoPengranliketodoinordertoimproveEnglishi 1. What’sZhouJiancheng’sidea 2. WhatwouldZhangHongyingliketodoafterlunch 3. Whatdomoststudentsdoduringlunchtime 4. Howoldarethestudents 5. 第4空应
DearAmy IhaveaproblemandI’mwritingaskyou1. foranadvice.Thisisasecretsoldon’ttellanybodyelse.2. MycousinandIusedtogettingalongverywelland3. weweregoodfriend.Wewereplanningtospend4. partofthewinterholidaytogetherbutnow5. Idon’tthinkIwanttoinviteherhome.6. RecentlyIhasdiscoveredthathe’sstartedtotell7. lies.WhenItoldhimthiswaswrongtotelllies8. buthejustlaughedatme.TheproblemisshouldI9. tellhisparentsorhisteacherorshouldIkeepquietly.10. 第6空应
有一块菜地和一块麦地．菜地的一半和麦地的1/3放在一起是13公顷麦地的一半和菜地的1/3放在一起是12公顷问菜地是几公顷
Annalivedonthesideofavalley山谷.OnewintertherewasaverybigfloodandalotofhousesdownbelowAnna’shousewerewashedaway.Anna’shousewashighenoughtoescapethefloodsowhenthewaterhaddisappearedandtheotherhouseswerestandingtherewithnoroofsandwallsandallcoveredwithmudherhousewasstillquiteallright.ThatyearAnna’swasverylucky. HerhousewasquitesmallandtherewereonlytwosmallbedroomsherhusbandwasdeadwhenthechildrenwereveryyoungandshehadfourchildrenbutAnnatookinoneofthefamiliesthathadlosteverythinginthefloodandshesharedherhomewiththemuntilitwaspossibleforthemtorebuildtheirhouse. Anna’sfriendswereverypuzzled困惑whentheysawAnnadothis.TheycouldnotunderstandwhyAnnawantedtogiveherselfsomuchmoreworkandtroublewhenshehadalreadyquitealotofchildrentosupport.Lifewouldbeevenharderwhenanotherfamilyjoinedthem. "Well"Annaexplainedtoherfriends"attheendoftheFirstWorldWarawomaninthetownwhereIthenlivedinGermanyfoundherselfverypoorbecauseherhusbandhadbeenkilledinthewarandshehadalotofchildrenasIhavenow." "ThedaybeforeChristmasthiswomansaidtoherchildren’Wewon’thavemuchforChristmasthisyearsoIamgoingtogetonlyonegiftforallofusandIamsurewewillallbegladtohaveit.NowI’llgoandgetit.’Shecamebackwithalittlegirlwhowasevenpoorerthantheyandwhohadnoparents.’Hereisourgift’shesaidtoherchildren." "Thechildrenwereveryexcitedandhappytogetsuchagift.TheywelcomedthelittlegirlandshegrewupastheirsisterIwasjustthatChristmasgift./ HowmanypeoplewerethereinAnna’sfamily
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D PeopleoftensaythattheEnglishman’shomeishiscastle.Theymeanthatthehomeisveryimportantandpersonaltohim.MostpeopleinBritainliveinhousesratherthanflatsandmanypeopleowntheirhomes.Thismeansthattheycanmakethemindividual个体的;theycanpaintthemandchangetheminanywaytheylike.Mosthouseshaveagardenevenifitisaverysmalloneandthegardenisusuallyloved.Thehouseandthegardenaretheprivate私人的spaceoftheindividual. Peopleusuallyliketomarktheirspace.AreyousittingnowinyourhomeoronatrainHaveyoumarkedthespacearoundyourselfasyoursIfyouareonthetrainyoumayputyourcoatorsmallbagontheseatbesideyou.Ifyoushareaflatyoumayhaveonecornerorchairwhichisyourown. OnceIwastravellingonatraintoLondon.Iwasinasectionforfourpeopleandtherewasatablebetweenus.Themanontheoppositesidetomehadhisbriefcaseonthetable.Therewasnospaceonmysideofthetableatall.Iwasangry.Maybehethoughtthatheownedthewholetable.IhadreadabookaboutnonverbalcommunicationsoItookvariouspapersoutofmybagandputthemonhisbriefcase!WhenIdidthishestiffenedandhiseyesnearlypopped瞪出outofhishead.Ihadinvaded侵犯hisspace!AfewminuteslaterItookmypapersoffhiscaseinordertoreadthem.Heimmediatelymovedhiscasetohissideofthetable.Ofcourseitispossiblethathejustwantedtobehelpfultome! Ifyouarevisitinganothercountryyoumayfeelthatyoudon’thaveanyprivatespace.Hotelroomslookmuchthesameineverycountryintheworld.Alldaylongyousharepublicspaceswithotherpeople.Youseethelocalpeopleintheirprivatespacesandyoufeellonelyand"outside".Localpeoplecancreatetheirprivatespacesbytalkingaboutthingsyoudon’tknowabout.Andyouevenfeelthattheylikeyoutobeoutsidethemsothattheywillenjoybeinginsideevenmore!Thisisoneofthedifficultiesofbeingatraveller!Butifyouunderstanditthenithelpsyou.Haven’tyouenjoyedbeingpartofagroupand"owning"abitofspace InParagraph4thepronounthemrefersto所指.
Annalivedonthesideofavalley山谷.OnewintertherewasaverybigfloodandalotofhousesdownbelowAnna’shousewerewashedaway.Anna’shousewashighenoughtoescapethefloodsowhenthewaterhaddisappearedandtheotherhouseswerestandingtherewithnoroofsandwallsandallcoveredwithmudherhousewasstillquiteallright.ThatyearAnna’swasverylucky. HerhousewasquitesmallandtherewereonlytwosmallbedroomsherhusbandwasdeadwhenthechildrenwereveryyoungandshehadfourchildrenbutAnnatookinoneofthefamiliesthathadlosteverythinginthefloodandshesharedherhomewiththemuntilitwaspossibleforthemtorebuildtheirhouse. Anna’sfriendswereverypuzzled困惑whentheysawAnnadothis.TheycouldnotunderstandwhyAnnawantedtogiveherselfsomuchmoreworkandtroublewhenshehadalreadyquitealotofchildrentosupport.Lifewouldbeevenharderwhenanotherfamilyjoinedthem. "Well"Annaexplainedtoherfriends"attheendoftheFirstWorldWarawomaninthetownwhereIthenlivedinGermanyfoundherselfverypoorbecauseherhusbandhadbeenkilledinthewarandshehadalotofchildrenasIhavenow." "ThedaybeforeChristmasthiswomansaidtoherchildren’Wewon’thavemuchforChristmasthisyearsoIamgoingtogetonlyonegiftforallofusandIamsurewewillallbegladtohaveit.NowI’llgoandgetit.’Shecamebackwithalittlegirlwhowasevenpoorerthantheyandwhohadnoparents.’Hereisourgift’shesaidtoherchildren." "Thechildrenwereveryexcitedandhappytogetsuchagift.TheywelcomedthelittlegirlandshegrewupastheirsisterIwasjustthatChristmasgift./ WheredidAnnalive
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DearAmy IhaveaproblemandI’mwritingaskyou1. foranadvice.Thisisasecretsoldon’ttellanybodyelse.2. MycousinandIusedtogettingalongverywelland3. weweregoodfriend.Wewereplanningtospend4. partofthewinterholidaytogetherbutnow5. Idon’tthinkIwanttoinviteherhome.6. RecentlyIhasdiscoveredthathe’sstartedtotell7. lies.WhenItoldhimthiswaswrongtotelllies8. buthejustlaughedatme.TheproblemisshouldI9. tellhisparentsorhisteacherorshouldIkeepquietly.10. 第4空应
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中，y与x成正比例 在y=2（x+1）中，y与x+1成正比例 在y=x+3中，y与x成正比例
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