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发表于 2019-9-13 23:46:11 | 显示全部楼层 |阅读模式
???2015?????????????(???)

???2014?????????????(Word???)

2014?????????????

??????????20??????????????????????????????????????????3???????????????????????

1??2014????????0??1?????????????? ?

A? B? 0 C? ? D? ?1 ??? ??????0?0??????????

???1???0?????D?

????????????????????0?0??????????

2??2014???????????????? ?

6323262222 A?4a?2a=2 B? aa=a C? ??ab?=ab D? ?a?b?=a?b

???????????????a???2a?B?????3?D???????? ??A??????????2a?????B????????????????????

3??a?C???????????

D??????????????????????????C?

??? ???????????????????????????????????????????????

3??2014?????????????????????????? ?

A? B? C? D? ??A???????????????????????B??????????????????????????C??????????????????????????

D??????????????????????????D?

????????????????????????????????????????????

4??2014??????PM2.5????????0.0000025???????0.0000025?????????? ?

A?2.510 B? 2.510 C? 2510 D? 0.2510

?n??? ?????1?????????????????????a10?????

?????????????????????????????????????????0???????

??0.0000025=2.510????B?

?n?????????????????????????a10???1?|a|?10?n???

????????????????0???????

5??2014??????????????????????????????????? ? ?6?7?6?7?5

A??1+?6?180 B? ?2+?5?180 C? ?3+?4?180 D? ?3+?7?180 ??????????????3+?4=180??2=?7???????????????2+?3=180+?A???????????????

??A??DG?EF???3+?4=180???6=?4??3??1?

??6+?1?180????????

B??DG?EF???5=?3???2+?5=?2+?3

=?180??1?+?180??ALH?=360???1+?ALH?=360??180??A?

=180+?A?180????????

C??DG?EF???3+?4=180????????

D??DG?EF???2=?7???3+?2=180+?A?180???3+?7?180??????????D? ?????????????????????????????????????????????????????????

6??2014?????????????

?????????????????2???????? ?

A? 1 B? 2 C? 3 D? 4

????????????????????

?????????????2????????????????2????? ???????????2????????????????3???????C? ????????????????????????????????????????????????

7??2014????????5x+2y=?9??????????????

A?x+2y=1 B? 3x+2y=?8 C? 5x+4y=?3

????x?y???????????????

????5x+2y=?9????????????????? ? D? 3x?4y=?8 ??3x?4y=?8???D ???????????????????????????????????????????

8??2014??????????ACB=90?D?AB??????DC????E??CE=CD???B?BF?DE??AE???????F??AB=6??BF???? ?

A?6 B? 7 C? 8 D? 10

?????????????????????????CD=AB=3????????CE=CD????ED=4????????????????BF=2ED=8?

???????ACB=90?D?AB????AB=6??CD=AB=3??CE=CD? ?CE=1??ED=CE+CD=4???BF?DE??D?AB????

?ED??AFD??????BF=2ED=8????C?

??? ??????????????????????????????????ED?????????????

9??2014??????????????10???????????????? ??/? 80 85 90 95

??/? 1 2 5 2

????????????????? ?

A?90?90 B? 90?89 C? 85?89 D? 85?90

???????????????????????????????????????????????????????

?????10?????????5?6????????????????90+90?2=90????????????80+852+905+952?10=89???B?

?????????????????????????????????????????????????????????????????????????????????????????????????

10??2014????????ABC??A1B1C1?????????

?1??AB=A1B1?AC=A1C1??A=?A1???ABC??A1B1C1?

?2??AB=A1B1?AC=A1C1??B=?B1???ABC??A1B1C1?

?3???A=?A1??C=?C1???ABC??A1B1C1?

?4??AC?A1C1=CB?C1B1??C=?C1???ABC??A1B1C1?

?????????? ?

A?4? B? 3? C? 2? D? 1?

???????????????????????????????????????? ???1??AB=A1B1?AC=A1C1??A=?A1???SAS?????ABC??A1B1C1????

?2??AB=A1B1?AC=A1C1??B=?B1??????ABC??A1B1C1????

?3???A=?A1??C=?C1?????ABC??A1B1C1????

?4??AC?A1C1=CB?C1B1??C=?C1????????????????????????????ABC??A1B1C1??????B?

???????????????????????????????????????

11??2014?????????????4?????????????????1?2?3?4??????????????????????????????????????????????4????? ?

A? B? C? D?

??? ???????????????????????????????????????????4??????????????????

????????

???16??????????????????????4??10????

???????????????4?????=???C?

???????????????????????????????????????????????????????????????=?????????????

12??2014?????????????????????A=30?BC=4cm????????C???????C??????BD?????????DE?????A??DC????????A??????????DE???? ?

A?cm B? 2cm C? 2cm D? 3cm

??????????????????ABC=60??????????????????BDC=?BDC???CBD=?ABD=30??ADE=?A?DE??????BDE=90??????????BD?????DE???

????ABC????????A=30???ABC=90?30=60?

????BD???C???????C???

??BDC=?BDC???CBD=?ABD=?ABC=30?

??DE???A??DC????????A?????ADE=?A?DE?

??BDE=?ABD+?A?DE=180=90?

?Rt?BCD??BD=BCcos30=4?Rt?ADE??DE=BD?tan30==cm? =cm???A?

??? ??????????????????????????????????30??????????????

13??2014???????????????????????????????3?????????4???????1??????????0.5???????????15????????????????x???????????? ?

A??3+x??4?0.5x?=15 B??x+3??4+0.5x?=15

C? ?x+4??3?0.5x?=15 D??x+1??4?0.5x?=15

???????????????x?????????x+3?????????????4?0.5x????????x+3??4?0.5x?=15???

?????????x???????3+x??4?0.5x?=15???A?

????????????????????????????????=?????????????

14??2014??????????ABC???ACB=90??A=30?AB=16??P???AB??????P?PQ?AB????P???AC???CB???Q??AP=x??APQ????y??y?x??????????? ?

ABC?

?????Q?AC??BC????????????

????Q?AC?????A=30?AP=x??PQ=xtan30=

?

y=APPQ=x=x? 2D

??Q?BC????????

?AP=x?AB=16??A=30??BP=16?x??B=60?

?PQ=BP?tan60=?16?x?? ?

==?

?????????????????????????????????

???2014???????????????(Word???)

2014?????????????

??????????20??????????????????????????????????????????3???????????????????????

1??2014????????0??1?????????????? ?

A? B? 0 C? ? D? ?1 ??? ??????0?0??????????

???1???0?????D?

????????????????????0?0??????????

2??2014???????????????? ?

6323262222 A?4a?2a=2 B? aa=a C? ??ab?=ab D? ?a?b?=a?b

???????????????a???2a?B?????3?D???????? ??A??????????2a?????B????????????????????

3??a?C???????????

D??????????????????????????C?

??? ???????????????????????????????????????????????

3??2014?????????????????????????? ?

A? B? C? D? ??A???????????????????????B??????????????????????????C??????????????????????????

D??????????????????????????D?

????????????????????????????????????????????

4??2014??????PM2.5????????0.0000025???????0.0000025?????????? ?

A?2.510 B? 2.510 C? 2510 D? 0.2510

?n??? ?????1?????????????????????a10?????

?????????????????????????????????????????0???????

??0.0000025=2.510????B?

?n?????????????????????????a10???1?|a|?10?n???

????????????????0???????

5??2014??????????????????????????????????? ? ?6?7?6?7?5

A??1+?6?180 B? ?2+?5?180 C? ?3+?4?180 D? ?3+?7?180 ??????????????3+?4=180??2=?7???????????????2+?3=180+?A???????????????

??A??DG?EF???3+?4=180???6=?4??3??1?

??6+?1?180????????

B??DG?EF???5=?3???2+?5=?2+?3

=?180??1?+?180??ALH?=360???1+?ALH?=360??180??A?

=180+?A?180????????

C??DG?EF???3+?4=180????????

D??DG?EF???2=?7???3+?2=180+?A?180???3+?7?180??????????D? ?????????????????????????????????????????????????????????

6??2014?????????????

?????????????????2???????? ?

A? 1 B? 2 C? 3 D? 4

????????????????????

?????????????2????????????????2????? ???????????2????????????????3???????C? ????????????????????????????????????????????????

7??2014????????5x+2y=?9??????????????

A?x+2y=1 B? 3x+2y=?8 C? 5x+4y=?3

????x?y???????????????

????5x+2y=?9????????????????? ? D? 3x?4y=?8 ??3x?4y=?8???D ???????????????????????????????????????????

8??2014??????????ACB=90?D?AB??????DC????E??CE=CD???B?BF?DE??AE???????F??AB=6??BF???? ?

A?6 B? 7 C? 8 D? 10

?????????????????????????CD=AB=3????????CE=CD????ED=4????????????????BF=2ED=8?

???????ACB=90?D?AB????AB=6??CD=AB=3??CE=CD? ?CE=1??ED=CE+CD=4???BF?DE??D?AB????

?ED??AFD??????BF=2ED=8????C?

??? ??????????????????????????????????ED?????????????

9??2014??????????????10???????????????? ??/? 80 85 90 95

??/? 1 2 5 2

????????????????? ?

A?90?90 B? 90?89 C? 85?89 D? 85?90

???????????????????????????????????????????????????????

?????10?????????5?6????????????????90+90?2=90????????????80+852+905+952?10=89???B?

?????????????????????????????????????????????????????????????????????????????????????????????????

10??2014????????ABC??A1B1C1?????????

?1??AB=A1B1?AC=A1C1??A=?A1???ABC??A1B1C1?

?2??AB=A1B1?AC=A1C1??B=?B1???ABC??A1B1C1?

?3???A=?A1??C=?C1???ABC??A1B1C1?

?4??AC?A1C1=CB?C1B1??C=?C1???ABC??A1B1C1?

?????????? ?

A?4? B? 3? C? 2? D? 1?

???????????????????????????????????????? ???1??AB=A1B1?AC=A1C1??A=?A1???SAS?????ABC??A1B1C1????

?2??AB=A1B1?AC=A1C1??B=?B1??????ABC??A1B1C1????

?3???A=?A1??C=?C1?????ABC??A1B1C1????

?4??AC?A1C1=CB?C1B1??C=?C1????????????????????????????ABC??A1B1C1??????B?

???????????????????????????????????????

11??2014?????????????4?????????????????1?2?3?4??????????????????????????????????????????????4????? ?

A? B? C? D?

??? ???????????????????????????????????????????4??????????????????

????????

???16??????????????????????4??10????

???????????????4?????=???C?

???????????????????????????????????????????????????????????????=?????????????

12??2014?????????????????????A=30?BC=4cm????????C???????C??????BD?????????DE?????A??DC????????A??????????DE???? ?

A?cm B? 2cm C? 2cm D? 3cm

??????????????????ABC=60??????????????????BDC=?BDC???CBD=?ABD=30??ADE=?A?DE??????BDE=90??????????BD?????DE???

????ABC????????A=30???ABC=90?30=60?

????BD???C???????C???

??BDC=?BDC???CBD=?ABD=?ABC=30?

??DE???A??DC????????A?????ADE=?A?DE?

??BDE=?ABD+?A?DE=180=90?

?Rt?BCD??BD=BCcos30=4?Rt?ADE??DE=BD?tan30==cm? =cm???A?

??? ??????????????????????????????????30??????????????

13??2014???????????????????????????????3?????????4???????1??????????0.5???????????15????????????????x???????????? ?

A??3+x??4?0.5x?=15 B??x+3??4+0.5x?=15

C? ?x+4??3?0.5x?=15 D??x+1??4?0.5x?=15

???????????????x?????????x+3?????????????4?0.5x????????x+3??4?0.5x?=15???

?????????x???????3+x??4?0.5x?=15???A?

????????????????????????????????=?????????????

14??2014??????????ABC???ACB=90??A=30?AB=16??P???AB??????P?PQ?AB????P???AC???CB???Q??AP=x??APQ????y??y?x??????????? ?

ABC?

?????Q?AC??BC????????????

????Q?AC?????A=30?AP=x??PQ=xtan30=

?

y=APPQ=x=x? 2D

??Q?BC????????

?AP=x?AB=16??A=30??BP=16?x??B=60?

?PQ=BP?tan60=?16?x?? ?

==?

?????????????????????????????????


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