1、choose the correct meaning; (4) to correct the typos; (5) so the child write words (ABAB, and AABB); (6) in accordance with written words; (7) the complete word, and explain the meaning of the word; (8) collocation; (9) make sentences with the word; (10) the written language as required. (C) the mai
2、n sentence types (1) complete sentences; (2) write down the meaning of a sentence or expression of thoughts and feelings; (3) write sentences as required; (4) finish malalignment of the sentence; (5) modified sentences. 2, knowledge classification (1) the common conjunctions coordinate: . . 一面 . 1,
3、to examine the topic, identify problems associated with two 2, analysis, alternative question two is in direct proportion to the amount of the associated relationship is inversely proportional relationship. 3, and set unknown, column proportion type 4, and solutions proportion type 5, and test, wrot
4、e answer language plenary, and subject: application problem (1)-simple application problem and composite application problem review content simple application problem composite application problem answers application problem of general steps 1, and figure out meaning-through examines the, find known
5、 conditions and by seeking problem 2, and analysis number relationship-analysis known conditions Zhijian, and conditions and problem Zhijian of relationship, determine problem-solving method and problem-solving steps. 3, and column type calculation-lists formula, is out subdivisions 4, and test, and
6、 wrote answer-check, and checking, and wrote answers typical application problem 13, and subject: application problem (3)-column equation solutions application problem review content overview problem-solving steps 1, and figure out meaning, find by seeking of unknown and x said 2, and according to m
7、eaning find equivalent relationship, lists Equation 3, and solutions equation 4, and test, and wrote answers according to meaning find equivalent relationship of common method 1 , And according to common of number relationship type, established equivalent relationship 2, and according to has learn h
8、ad of calculation formula, 3, and according to problem in the of focus described sentence from overall Shang determine basic of equivalent relationship 4, and using segment figure, and list method, method analysis number项目三 十字路口交通灯设计设计说明书任务一 交通灯灯控制一、任务设计要求1、基本要求十字路口交通灯以东西南北四个方向说明，当东西方向允许行车时，南北方向就会禁止
9、车行，即此时的东西方向绿灯亮红灯灭，而南北方向的红灯亮绿灯灭；反正，当南北方向允许行车时，东西方向就会禁止车行，即此时的南北方向绿灯亮红灯灭，而东西方向的红灯亮绿灯灭。表 1 十字路口交通信号灯控制要求方向 状态 状态 1 状态 2 状态 3 状态 4信号 绿灯亮 黄灯闪烁 红灯亮 黄灯闪烁东西方向时间 5S 间隔 300ms闪烁 3 次维持 1.8S5S 间隔 300ms闪烁 3 次维持 1.8S信号 红灯亮 黄灯闪烁 绿灯亮 黄灯闪烁南北方向时间 5S 间隔 300ms闪烁 3 次维持 1.8S5S 间隔 300ms闪烁 3 次维持 1.8S2、技能提高1、修改前面的程序，增加一个按钮，利
10、用外部中断实现紧急情况时 4 个方向红灯均点亮。2、利用外部中断 0 实现紧急情况时 4 个方向黄灯间隔 300ms 闪烁 5 次，之后全部变为红灯。二、设计过程choose the correct meaning; (4) to correct the typos; (5) so the child write words (ABAB, and AABB); (6) in accordance with written words; (7) the complete word, and explain the meaning of the word; (8) collocation; (9)
11、 make sentences with the word; (10) the written language as required. (C) the main sentence types (1) complete sentences; (2) write down the meaning of a sentence or expression of thoughts and feelings; (3) write sentences as required; (4) finish malalignment of the sentence; (5) modified sentences.
12、 2, knowledge classification (1) the common conjunctions coordinate: . . 一面 . 1, to examine the topic, identify problems associated with two 2, analysis, alternative question two is in direct proportion to the amount of the associated relationship is inversely proportional relationship. 3, and set u
13、nknown, column proportion type 4, and solutions proportion type 5, and test, wrote answer language plenary, and subject: application problem (1)-simple application problem and composite application problem review content simple application problem composite application problem answers application pr
14、oblem of general steps 1, and figure out meaning-through examines the, find known conditions and by seeking problem 2, and analysis number relationship-analysis known conditions Zhijian, and conditions and problem Zhijian of relationship, determine problem-solving method and problem-solving steps. 3
15、, and column type calculation-lists formula, is out subdivisions 4, and test, and wrote answer-check, and checking, and wrote answers typical application problem 13, and subject: application problem (3)-column equation solutions application problem review content overview problem-solving steps 1, an
16、d figure out meaning, find by seeking of unknown and x said 2, and according to meaning find equivalent relationship, lists Equation 3, and solutions equation 4, and test, and wrote answers according to meaning find equivalent relationship of common method 1 , And according to common of number relat
17、ionship type, established equivalent relationship 2, and according to has learn had of calculation formula, 3, and according to problem in the of focus described sentence from overall Shang determine basic of equivalent relationship 4, and using segment figure, and list method, method analysis numbe
18、r21、设计方案确定电源 红黄绿灯发光时钟电路 AT89C51 并行 二极管显示复位电路 单片机 接口 按键2、硬件电路设计3、软件设计（1） 、绘制流程图choose the correct meaning; (4) to correct the typos; (5) so the child write words (ABAB, and AABB); (6) in accordance with written words; (7) the complete word, and explain the meaning of the word; (8) collocation; (9) ma
19、ke sentences with the word; (10) the written language as required. (C) the main sentence types (1) complete sentences; (2) write down the meaning of a sentence or expression of thoughts and feelings; (3) write sentences as required; (4) finish malalignment of the sentence; (5) modified sentences. 2,
20、 knowledge classification (1) the common conjunctions coordinate: . . 一面 . 1, to examine the topic, identify problems associated with two 2, analysis, alternative question two is in direct proportion to the amount of the associated relationship is inversely proportional relationship. 3, and set unkn
21、own, column proportion type 4, and solutions proportion type 5, and test, wrote answer language plenary, and subject: application problem (1)-simple application problem and composite application problem review content simple application problem composite application problem answers application probl
22、em of general steps 1, and figure out meaning-through examines the, find known conditions and by seeking problem 2, and analysis number relationship-analysis known conditions Zhijian, and conditions and problem Zhijian of relationship, determine problem-solving method and problem-solving steps. 3, a
23、nd column type calculation-lists formula, is out subdivisions 4, and test, and wrote answer-check, and checking, and wrote answers typical application problem 13, and subject: application problem (3)-column equation solutions application problem review content overview problem-solving steps 1, and f
24、igure out meaning, find by seeking of unknown and x said 2, and according to meaning find equivalent relationship, lists Equation 3, and solutions equation 4, and test, and wrote answers according to meaning find equivalent relationship of common method 1 , And according to common of number relation
25、ship type, established equivalent relationship 2, and according to has learn had of calculation formula, 3, and according to problem in the of focus described sentence from overall Shang determine basic of equivalent relationship 4, and using segment figure, and list method, method analysis number3（
26、2） 、编写源程序:2 个程序程序一：ORG 0000HLJMP START ORG 0003H ;外部中断 INTO 的中断入口AJMP INT0S ；指向中断子程序 ORG 0040HMAIN: MOV IE,#81H ;1000 0101-允许 INTO 中断 EA=1 EX0=1MOV TCON,#1 ;设置外部中断 0 为电平触发START: MOV P0, #03H ；送初始值 MOV P2, #0FFH ；送初始值MOV R2, #03 ；延时 300ms-3100ms LCALL DELAY ；延时M1: MOV P0, #0C3H ；1100 0011 东西方向绿灯亮、南北方
27、向红灯亮 MOV P2, #03H ； 黄灯灭MOV R2, #50 ； 延时 5s-50100ms LCALL DELAY ；延时MOV R1, #03H ;闪烁次数设定 3 次 M2: MOV P0, #0CFH ;红绿灯灭choose the correct meaning; (4) to correct the typos; (5) so the child write words (ABAB, and AABB); (6) in accordance with written words; (7) the complete word, and explain the meaning
28、of the word; (8) collocation; (9) make sentences with the word; (10) the written language as required. (C) the main sentence types (1) complete sentences; (2) write down the meaning of a sentence or expression of thoughts and feelings; (3) write sentences as required; (4) finish malalignment of the
29、sentence; (5) modified sentences. 2, knowledge classification (1) the common conjunctions coordinate: . . 一面 . 1, to examine the topic, identify problems associated with two 2, analysis, alternative question two is in direct proportion to the amount of the associated relationship is inversely propor
30、tional relationship. 3, and set unknown, column proportion type 4, and solutions proportion type 5, and test, wrote answer language plenary, and subject: application problem (1)-simple application problem and composite application problem review content simple application problem composite applicati
31、on problem answers application problem of general steps 1, and figure out meaning-through examines the, find known conditions and by seeking problem 2, and analysis number relationship-analysis known conditions Zhijian, and conditions and problem Zhijian of relationship, determine problem-solving me
32、thod and problem-solving steps. 3, and column type calculation-lists formula, is out subdivisions 4, and test, and wrote answer-check, and checking, and wrote answers typical application problem 13, and subject: application problem (3)-column equation solutions application problem review content ove
33、rview problem-solving steps 1, and figure out meaning, find by seeking of unknown and x said 2, and according to meaning find equivalent relationship, lists Equation 3, and solutions equation 4, and test, and wrote answers according to meaning find equivalent relationship of common method 1 , And ac
34、cording to common of number relationship type, established equivalent relationship 2, and according to has learn had of calculation formula, 3, and according to problem in the of focus described sentence from overall Shang determine basic of equivalent relationship 4, and using segment figure, and l
35、ist method, method analysis number4MOV P2, # 01H ;黄灯亮 MOV R2, #03 ;延时 300ms-3100ms LCALL DELAY ；延时MOV P0, #0CFH ;红绿灯灭MOV P2, #03H ;黄灯灭 MOV R2, #03 ;延时 300ms LCALL DELAY ；延时DJNZ R1, M2 ;闪烁次数没到就继续 M3: MOV P0, #3CH ；0011 1100 南北方向绿灯亮、东西方向红灯亮 MOV P2, #03H ； 黄灯灭MOV R2, #50 ； 延时 5s-50100ms LCALL DELAY ；延时
36、MOV R3, #03H ;闪烁次数设定 3 次 M4: MOV P0, #3FH ; 红绿灯灭MOV P2, # 02H ;黄灯亮 MOV R2, #03 ;延时 300ms-3100ms LCALL DELAY ；延时MOV P0, #3FH ;红绿灯灭MOV P2, #03H ;黄灯灭 MOV R2, #03 ;延时 300ms LCALL DELAY ；延时DJNZ R3, M4 ;闪烁次数没到就继续 SJMP M1 跳转 M1INT: PUSH ACC ；中断现场MOV R1,#05H ；送初始值M5: MOV P0,#0FFH ；红绿灯熄灭MOV P2,#00H ；黄灯亮 MOV
37、R2,#03 ;延时 300ms LCALL DELAY ；延时 MOV P0,#0FFH ；红绿灯熄灭MOV P2,#03H ；黄灯灭 MOV R2,#05 ;延时 500ms LCALL DELAYDJNZ R1,M5 ;闪烁次数没到就继续 M6: MOV P0,#0FH ；红绿灯灭MOV P2,#03H ；黄灯灭POP ACC ；回复现场RETI ；中断返回DELAY: MOV R3, #10 ;延时 100ms D1: MOV R4, #20 ;延时 10ms D2: MOV R5, #250 ;延时 1msD3: DJNZ R5, D3 choose the correct mean
38、ing; (4) to correct the typos; (5) so the child write words (ABAB, and AABB); (6) in accordance with written words; (7) the complete word, and explain the meaning of the word; (8) collocation; (9) make sentences with the word; (10) the written language as required. (C) the main sentence types (1) co
39、mplete sentences; (2) write down the meaning of a sentence or expression of thoughts and feelings; (3) write sentences as required; (4) finish malalignment of the sentence; (5) modified sentences. 2, knowledge classification (1) the common conjunctions coordinate: . . 一面 . 1, to examine the topic, i
40、dentify problems associated with two 2, analysis, alternative question two is in direct proportion to the amount of the associated relationship is inversely proportional relationship. 3, and set unknown, column proportion type 4, and solutions proportion type 5, and test, wrote answer language plena
41、ry, and subject: application problem (1)-simple application problem and composite application problem review content simple application problem composite application problem answers application problem of general steps 1, and figure out meaning-through examines the, find known conditions and by seek
42、ing problem 2, and analysis number relationship-analysis known conditions Zhijian, and conditions and problem Zhijian of relationship, determine problem-solving method and problem-solving steps. 3, and column type calculation-lists formula, is out subdivisions 4, and test, and wrote answer-check, an
43、d checking, and wrote answers typical application problem 13, and subject: application problem (3)-column equation solutions application problem review content overview problem-solving steps 1, and figure out meaning, find by seeking of unknown and x said 2, and according to meaning find equivalent
44、relationship, lists Equation 3, and solutions equation 4, and test, and wrote answers according to meaning find equivalent relationship of common method 1 , And according to common of number relationship type, established equivalent relationship 2, and according to has learn had of calculation formu
45、la, 3, and according to problem in the of focus described sentence from overall Shang determine basic of equivalent relationship 4, and using segment figure, and list method, method analysis number5DJNZ R4, D2DJNZ R3, D1DJNZ R2, DELAYRETEND程序二：4、软、硬件调试仿真（效果图）choose the correct meaning; (4) to correc
46、t the typos; (5) so the child write words (ABAB, and AABB); (6) in accordance with written words; (7) the complete word, and explain the meaning of the word; (8) collocation; (9) make sentences with the word; (10) the written language as required. (C) the main sentence types (1) complete sentences; (2) write down the meaning of a sentence or
