½­Î÷Ê¡ÖصãÖÐѧÃËУ2019½ì¸ßÈýµÚÒ»´ÎʮУÁª¿¼Êýѧ£¨ÎÄ£©ÊÔÌâ ÏÂÔر¾ÎÄ

½­Î÷Ê¡ÖصãÖÐѧÃËУ2019½ì¸ßÈýµÚÒ»´ÎÁª¿¼

¸ßÈýÊýѧ£¨ÎÄ£©ÊÔ¾í

Ö÷ÃüÌ⣺¸ÓÖÝÈýÖÐ Àµ×£»ª ¸¨ÃüÌ⣺ÐÂÓàËÄÖÐ Áõ½ð»ª °×ðØÖÞÖÐѧ ÃÅÏþÑÞ ±¾ÊÔ¾í·ÖµÚ¢ñ¾í£¨Ñ¡ÔñÌ⣩ºÍµÚ¢ò¾í£¨·ÇÑ¡ÔñÌ⣩Á½²¿·Ö£¬¹²150·Ö¡£¿¼ÊÔʱ¼ä120·ÖÖÓ¡£

Ò»¡¢Ñ¡ÔñÌ⣺±¾´óÌâ¹²12СÌ⣬ÿСÌâ5·Ö£¬Âú·Ö60·Ö£¬ÔÚÿСÌâ¸ø³öµÄËĸöÑ¡ÏîÖУ¬

Ö»ÓÐÒ»ÏîÊÇ·ûºÏÌâÄ¿ÒªÇóµÄ¡£

1¡¢Òª´ÓÒѱàºÅ£¨1~70£©µÄ70ö×îÐÂÑÐÖƵÄijÐ͵¼µ¯ÖÐËæ»ú³éÈ¡7öÀ´½øÐз¢ÉäÊÔÑ飬ÓÃÿ²¿·ÖÑ¡È¡µÄºÅÂë¼ä¸ôÒ»ÑùµÄϵͳ³éÑù·½·¨È·¶¨ËùÑ¡È¡µÄ7öµ¼µ¯µÄ±àºÅ¿ÉÄÜÊÇ£¨ £© A£® 5,10,15,20,25,30,35 B£®3,13,23,33,43,53,63

C£® 1,2,3,4,5,6,7 D£®1,8,15,22,29,36,43

2

2¡¢ÒÑÖªRÊÇʵÊý¼¯£¬M£½{x| x<1}£¬N£½{y|y£½x£­1}£¬Ôò(CRM)?N= ( )

A£®(1,2) B£®[1,2] C£®[1,2) D£®[0,2]

3¡¢ÒÑÖªµÈ±ÈÊýÁÐ?an?ÖУ¬a1?4£¬ÇÒa4a6?4a7£¬Ôòa3£½( )

11A£® B£®1 C£®2 D£® 24

4¡¢ÈçÏÂͼ£¬±ß³¤Îª2µÄÕý·½ÐÎÖÐÓÐÒ»ÒõÓ°ÇøÓò£¬ÔÚÕý·½ÐÎÖÐËæ»úÈöÒ»Á£¶¹×Ó£¬ËüÂäÔÚÒõÓ°ÇøÓòÄÚµÄ

2

¸ÅÂÊΪ.ÔòÒõÓ°ÇøÓòµÄÃæ»ýΪ ( )

3482A£® B£® C£® D£®ÎÞ·¨¼ÆËã

333

25¡¢ÒÑÖªÏòÁ¿a¡¢bµÄ¼Ð½ÇΪ120¡ã£¬ÇÒ|a|£½1£¬|2a+b|£½23£¬Ôò|b|£½( ) A£®32 B£®22 C£®4 D£®2 ??????6¡¢¸´Êý2?iÓ븴Êý

10ÔÚ¸´Æ½ÃæÉϵĶÔÓ¦µã·Ö±ðÊÇA¡¢B£¬Ôò?AOBµÈÓÚ( ) 3?i????A£® B£® C£® D£®

6432x216y227¡¢Ë«ÇúÏß?2?1(p?0)µÄ×ó½¹µãÔÚÅ×ÎïÏßy?2pxµÄ×¼ÏßÉÏ£¬Ôò¸ÃË«ÇúÏßµÄÀëÐÄÂÊΪ( )

3p A£®

234 B£®3 C£® D£®4

338¡¢ÒÑÖªº¯Êýf(x?1)ÊÇżº¯Êý£¬µ±x¡Ê(1£¬£«¡Þ)ʱ£¬º¯Êýf(x)?sinx?x£¬

1cµÄ´óС¹ØϵΪ( ) b?f(3)£¬c?f(0)£¬Éèa£½f(?) £¬Ôòa¡¢b¡¢

22 A£®b

9¡¢ÒÑ֪ij¼¸ºÎÌåµÄÈýÊÓͼÈçͼËùʾ£¬Èý¸öÊÓͼ¶¼ÎªÖ±½ÇÈý½ÇÐΣ¬Æä

ÖÐÖ÷ÊÓͼÊÇÒÔ2Ϊֱ½Ç±ßµÄµÈÑüÖ±½ÇÈý½ÇÐΣ¬Ôò¸Ã¼¸ºÎÌåµÄÍâ½Ó

¡¤1¡¤

2 ÕýÊÓͼ 1 ²àÊÓͼ ¸©ÊÓͼ

ÇòµÄ±íÃæ»ýΪ( )

A£®16? B£®9? C£®8? D£®4?

?x?3x,x?0?10¡¢Èôº¯Êýf(x)??1ÔÚÆ䶨ÒåÓòÉÏÖ»ÓÐÒ»¸öÁã a3?x?4x?,x?03?3µã£¬ÔòʵÊýaµÄÈ¡Öµ·¶Î§ÊÇ( ) A£®a>16 B£®a¡Ý16 C£®a<16

11¡¢ÏÂÁÐÃüÌâÖÐ, ÆäÖÐÊǼÙÃüÌâµÄΪ( )

¢ÙÈôm,nÊÇÒìÃæÖ±Ïߣ¬ÇÒm??,n??£¬Ôò?Óë?²»»áƽÐУ» ¢Úº¯Êýf(x)?cos2x?1µÄ×îСÕýÖÜÆÚÊÇ

£»

D£®a¡Ü16

¢ÛÃüÌâ¡°?a¡ÊR£¬º¯Êýf(x)£½(x£­1)a£«1ºã¹ý¶¨µã(1,1)¡±ÎªÕ棻 ¢Ü¡°ÃüÌâp?qΪÕ桱ÊÇ¡°ÃüÌâp?qΪÕ桱µÄ±ØÒª²»³ä·ÖÌõ¼þ£» A£®0¸ö

B£®1¸ö

C£®2¸ö

D£®3¸ö

12¡¢×ø±êƽÃæÉϵĵ㼯SÂú×ãS={(x,y)|log2(x2?x?2)?2sin4y?2cos4y,y?[-,]}£¬

½«µã¼¯SÖеÄËùÓеãÏòxÖá×÷ͶӰ£¬ËùµÃͶӰͼÐεij¤¶ÈΪ£¨ £© A£®1

B£®

??843?5 C£®82?7 D£®2 2 µÚ¢ò¾í£¨·ÇÑ¡ÔñÌ⣬¹²90·Ö£©

±¾¾í°üÀ¨±Ø¿¼ÌâºÍÑ¡¿¼ÌâÁ½²¿·Ö£¬µÚ13Ìâ~µÚ21ÌâΪ±Ø¿¼Ì⣬ÿ¸öÊÔÌ⿼Éú¶¼±ØÐë×ö´ð£¬µÚ22Ìâ~µÚ24ÌâΪѡ¿¼Ì⣬¿¼Éú¸ù¾ÝÒªÇó×ö´ð¡£

¶þ¡¢Ìî¿ÕÌ⣺±¾´óÌâ¹²4СÌ⣬ÿСÌâ5·Ö£¬Âú·Ö20·Ö¡£

13¡¢ÔڵȲîÊýÁÐ?an?ÖУ¬ÒÑÖªa5?a7?16£¬Ôò¸ÃÊýÁÐÇ°11ÏîºÍS11= £®

?x?3?14¡¢Éè²»µÈʽ×é?y?4 Ëù±íʾµÄƽÃæÇøÓòΪD.ÈôÔ²CÂäÔÚÇøÓòDÖУ¬ÔòÔ²CµÄ°ë¾¶rµÄ×î

?4x?3y?12?´óֵΪ______£®

15¡¢ÒÑÖªa¡¢b¡¢cΪ¼¯ºÏA£½{1,2,3,4,5}ÖÐÈý¸ö²»Í¬µÄÊý£¬

ͨ¹ýÈçͼËùʾËã·¨¿òͼ¸ø³öµÄÒ»¸öËã·¨Êä³öÒ»¸öÕûÊýa£¬ ÔòÊä³öµÄÊýa£½5µÄ¸ÅÂÊÊÇ________£®

16¡¢Èôf (n)Ϊn2+1(n¡ÊN*)µÄ¸÷λÊý×ÖÖ®ºÍ£¬È磺142+1=197£¬

1+9+7=17£¬Ôòf (14)=17;¼Çf1(n)= f (n)£¬f2(n)= f (f1(n))£¬ f3(n)= f (f2(n))£¬¡­¡­fk+1(n)= f (fk(n))£¬k¡ÊN*£¬ Ôòf 2019 (9)= ____£®

¡¤2¡¤

Èý¡¢½â´ðÌ⣺±¾´óÌâ¹²6СÌ⣬Âú·Ö70·Ö¡£½â´ðӦд³öÎÄ×Ö˵Ã÷£¬Ö¤Ã÷¹ý³Ì»òÑÝËã²½Öè¡£

4¦Ð

2x£­?£«2cos2x. 17¡¢£¨±¾Ð¡ÌâÂú·Ö12·Ö£©É躯Êýf(x)£½cos?3??£¨1£©Çóf(x)µÄ¶Ô³ÆÖá·½³Ì£»

£¨2£©ÒÑÖª¡÷ABCÖУ¬½ÇA£¬B£¬CµÄ¶Ô±ß·Ö±ðΪa£¬b£¬c£¬Èôf()?A21£¬b£«c£½2£¬ÇóaµÄ×îСֵ£® 2 18¡¢£¨±¾Ð¡ÌâÂú·Ö12·Ö£©Ä³Ð£ÔÚÒ»´ÎÆÚÄ©Êýѧ²âÊÔÖУ¬ÎªÍ³¼ÆѧÉúµÄ¿¼ÊÔÇé¿ö£¬´ÓѧУµÄ2000 ÃûѧÉúÖÐËæ»ú³éÈ¡50ÃûѧÉúµÄ¿¼ÊԳɼ¨£¬±»²âѧÉú³É¼¨È«²¿½éÓÚ60·Öµ½140·ÖÖ®¼ä(Âú·Ö150 ·Ö)£¬½«Í³¼Æ½á¹û°´ÈçÏ·½Ê½·Ö³É°Ë×飺µÚÒ»×é[60,70)£¬µÚ¶þ ×é[70,80)£¬¡­¡­£¬µÚ°Ë×飺[130,140]£¬ÈçͼÊÇ°´ÉÏÊö·Ö×é·½ ·¨µÃµ½µÄƵÂÊ·Ö²¼Ö±·½Í¼µÄÒ»²¿·Ö£®

£¨1£©ÇóµÚÆß×éµÄƵÂÊ£¬²¢Íê³ÉƵÂÊ·Ö²¼Ö±·½Í¼£»

£¨2£©¹À¼Æ¸ÃУµÄ2000ÃûѧÉúÕâ´Î¿¼ÊԳɼ¨µÄƽ¾ù·Ö(¿ÉÓà ÖÐÖµ´úÌæ¸÷×éÊý¾Ýƽ¾ùÖµ)£»

£¨3£©Èô´ÓÑù±¾³É¼¨ÊôÓÚµÚÒ»×éºÍµÚÁù×éµÄËùÓÐѧÉúÖÐËæ»ú ³éÈ¡2Ãû£¬ÇóËûÃǵķֲîСÓÚ10·ÖµÄ¸ÅÂÊ£® 19¡¢£¨±¾Ð¡ÌâÂú·Ö12·Ö£©Èçͼ£¬ÔÚÌÝÐÎABCDÖУ¬AB//CD£¬AD?DC?CB?a£¬?ABC?60?£¬ ËıßÐÎACFEÊǾØÐΣ¬ÇÒƽÃæACFE?ƽÃæABCD£¬µãMÔÚÏ߶ÎEFÉÏ. £¨1£©ÇóÖ¤£ºBC?ƽÃæACFE£»

£¨2£©µ±EMΪºÎֵʱ£¬AM//ƽÃæBDF£¿Ö¤Ã÷ÄãµÄ½áÂÛ¡£

x2y2

20¡¢£¨±¾Ð¡ÌâÂú·Ö12·Ö£©ÒÑÖªÍÖÔ²E£º2£«2£½1(a£¾b£¾0)£¬F1(£­c,0)£¬F2(c,0)

ab

ΪÍÖÔ²µÄÁ½¸ö½¹µã£¬MΪÍÖÔ²ÉÏÈÎÒâÒ»µã£¬ÇÒ|MF1|£¬|F1F2|£¬|MF2|¹¹³ÉµÈ²îÊýÁУ¬¹ýÍÖÔ²½¹ µã´¹Ö±ÓÚ³¤ÖáµÄÏÒ³¤Îª3¡£ £¨1£©ÇóÍÖÔ²EµÄ·½³Ì£»

¡ú¡ú

£¨2£©Èô´æÔÚÒÔÔ­µãΪԲÐĵÄÔ²£¬Ê¹¸ÃÔ²µÄÈÎÒâÒ»ÌõÇÐÏßÓëÍÖÔ²EºãÓÐÁ½¸ö½»µãA£¬B£¬ÇÒOA¡ÍOB£¬

¡¤3¡¤

Çó³ö¸ÃÔ²µÄ·½³Ì£®

21¡¢£¨±¾Ð¡ÌâÂú·Ö12·Ö£©ÒÑÖªº¯Êýf(x)£½lnx£«ax2£«bx(ÆäÖÐa¡¢bΪ³£ÊýÇÒa¡Ù0)ÔÚx£½1´¦È¡µÃ¼«Öµ£®

£¨1£©µ±a£½1ʱ£¬Çóf(x)µÄ¼«´óÖµµãºÍ¼«Ð¡Öµµã£» £¨2£©Èôf(x)ÔÚ(0£¬e]ÉϵÄ×î´óֵΪ1£¬ÇóaµÄÖµ£®

Ç뿼Éú´ÓµÚ22¡¢23¡¢24¡¢ÌâÖÐÈÎÑ¡Ò»Ìâ×ö´ð£¬Èç¹û¶à×ö£¬Ôò°´Ëù×öµÄµÚÒ»Ìâ¼Æ·Ö¡£ 22¡¢£¨±¾Ð¡ÌâÂú·Ö10·Ö£©Ñ¡ÐÞ4¡ª1£º¼¸ºÎÖ¤Ã÷Ñ¡½²

Èçͼ£¬¹ýÔ²OÍâÒ»µãM×÷ËüµÄÒ»ÌõÇÐÏߣ¬ÇеãΪA£¬¹ýAµã×÷Ö±ÏßAP´¹Ö±Ö±ÏßOM£¬´¹×ãΪP.

£¨1£©Ö¤Ã÷£ºOM¡¤OP£½OA2£»

£¨2£©NΪÏ߶ÎAPÉÏÒ»µã£¬Ö±ÏßNB´¹Ö±Ö±ÏßON£¬ÇÒ½»Ô²OÓÚ Bµã£®¹ýBµãµÄÇÐÏß½»Ö±ÏßONÓÚK.Ö¤Ã÷£º¡ÏOKM£½90¡ã. 23¡¢£¨±¾Ð¡ÌâÂú·Ö10·Ö£©Ñ¡ÐÞ4¡ª4£º×ø±êϵÓë²ÎÊý·½³Ì

ÔÚƽÃæÖ±½Ç×ø±êϵÖУ¬ÒÔ×ø±êÔ­µãΪ¼«µã£¬xÖáµÄ·Ç¸º°ëÖáΪ¼«ÖὨÁ¢¼«×ø±êϵ£®ÒÑÖªµãAµÄ¼«¦Ð¦Ð

×ø±êΪ(2£¬)£¬Ö±ÏßlµÄ¼«×ø±ê·½³ÌΪ¦Ñcos(¦È£­)£½a£¬£®

44£¨1£©ÈôµãAÔÚÖ±ÏßlÉÏ£¬ÇóÖ±ÏßlµÄÖ±½Ç×ø±ê·½³Ì£» £¨2£©Ô²CµÄ²ÎÊý·½³ÌΪ??x?2?cos?(?Ϊ²ÎÊý)£¬ÈôÖ±ÏßlÓëÔ²CÏཻµÄÏÒ³¤Îª2£¬ÇóaµÄÖµ¡£

y?sin??

24¡¢£¨±¾Ð¡ÌâÂú·Ö10·Ö£©Ñ¡ÐÞ4¡ª5£º²»µÈʽѡ½²

ÒÑÖªº¯Êýf(x)£½|x£«3|£«|x£­a|(a>0)£®

£¨1£©µ±a£½4ʱ£¬ÒÑÖªf(x)£½7£¬ÇóxµÄÈ¡Öµ·¶Î§£» £¨2£©Èôf(x)¡Ý6µÄ½â¼¯Îª{x|x¡Ü£­4»òx¡Ý2}£¬ÇóaµÄÖµ£®

¡¤4¡¤