机智多谋的小伙伴们,求这道题的详细做法,多谢了! 题意:借物喻人的小练笔 要求:不少于300字
\u673a\u667a\u7684\u5c0f\u4f19\u4f34\u4eec\uff0c\u6c42\u6559\u8fd9\u9053\u9898\u7684\u8be6\u7ec6\u505a\u6cd5\uff0c\u591a\u8c22\u5566(1)A\u5730\u4f4d\u7f6e\u5982\u56fe\u2460\u6240\u793a (2)\u7531\u9898\u610f\uff0c\u4e59\u7684\u901f\u5ea6\u4e3a
150
75(km/h)\u3002 2
90
1.2(h)\uff0c\u2234M(1.2\uff0c0)\uff0c 75
\u6240\u4ee5\u70b9M\u8868\u793a\u4e59\u8f661.2\u5c0f\u65f6\u5230\u8fbeA\u5730\u3002 (3)\u7531\u9898\u610f\uff0c\u7532\u7684\u901f\u5ea6\u4e3a
\u7532\u8f66\u7531B\u5730\u5230C\u5730\u7684\u65f6\u95f4\u4e3a
60
60(km/h) 1
6090
2.5(h) 60
\u7532\u8f66\u7684\u51fd\u6570\u56fe\u8c61\u5982\u56fe\u2461\u6240\u793a\u3002 \u5f530\u2264x\u22641\u65f6\uff0c\u7531\u9898\u610f\u8bbey=kx+60 \u2235\u70b9\uff081\uff0c0\uff09\u5728\u5176\u4e0a\uff0c\u2234k+60=0\u3002\u2234k=\uff0d60. \u2234y1=\uff0d60x+60
\u5f531<x\u22642.5\u65f6\uff0c\u8bbey1=kx+b\u3002 \u2235\u70b91\uff081\uff0c0\uff09\u3001(2.5\uff0c90)\u5728\u5176\u4e0a\uff0c \u2234
kb0k60
\u89e3\u5f97
2.5kb90b60
\u2234y1=60x\uff0d60
\u7efc\u4e0a\u6240\u8ff0\uff0c\u5f530\u2264x\u22641\u65f6\uff0cy1= \uff0d60x+60\uff1b
\u5f531<x\u22642.5\u65f6\uff0cy1=60x\uff0d60. (4)\u7531\u9898\u610f
6060x
\u7231\u8f85\u5bfc
\u89e3\uff1a\uff081\uff09\u7531\u9898\u610f\u5f97\uff0c\u7532\u65c5\u884c\u793e\u7684\u8d39\u7528=2000\u00d70.75a=1500a\uff1b \u4e59\u65c5\u884c\u793e\u7684\u8d39\u7528=2000\u00d70.8\uff08a\ufe631\uff09=1600a\ufe631600\uff1b \uff082\uff09\u5c06a=20\u4ee3\u5165\u5f97\uff0c\u7532\u65c5\u884c\u793e\u7684\u8d39\u7528=1500\u00d720=30000\uff08\u5143\uff09\uff1b \u4e59\u65c5\u884c\u793e\u7684\u8d39\u7528=1600\u00d720\ufe631600=30400\uff08\u5143\uff09 \u223530000\uff1c30400\u5143 \u2234\u7532\u65c5\u884c\u793e\u66f4\u4f18\u60e0\uff1b \uff083\uff09\u8bbe\u6700\u4e2d\u95f4\u4e00\u5929\u7684\u65e5\u671f\u4e3aa\uff0c \u5219\u8fd9\u4e03\u5929\u5206\u522b\u4e3a\uff1aa\ufe633\uff0ca\ufe632\uff0ca\ufe631\uff0ca\uff0ca+1\uff0ca+2\uff0ca+3 \u2234\u8fd9\u4e03\u5929\u7684\u65e5\u671f\u4e4b\u548c=\uff08a\ufe633\uff09+\uff08a\ufe632\uff09+\uff08a\ufe631\uff09+a+\uff08a+1\uff09+\uff08a+2\uff09+\uff08a+3\uff09=7a \u2460\u8bbe\u8fd9\u4e03\u5929\u7684\u65e5\u671f\u548c\u662f63\uff0c\u52197a=63\uff0ca=9\uff0c\u6240\u4ee5a\ufe633=6\uff0c\u53736\u53f7\u51fa\u53d1\uff1b \u2461\u8bbe\u8fd9\u4e03\u5929\u7684\u65e5\u671f\u548c\u662f63\u76842\u500d\uff0c\u5373126\uff0c\u52197a=126\uff0ca=18\uff0c\u6240\u4ee5a\ufe633=15\uff0c\u537315\u53f7\u51fa\u53d1\uff1b \u2462\u8bbe\u8fd9\u4e03\u5929\u7684\u65e5\u671f\u548c\u662f63\u76843\u500d\uff0c\u5373189\uff0c\u52197a=189\uff0ca=27\uff0c\u6240\u4ee5a\ufe633=24\uff0c\u537324\u53f7\u51fa\u53d1\uff1b \u6240\u4ee5\u4ed6\u4eec\u53ef\u80fd\u4e8e\u4e94\u67086\u53f7\u621615\u53f7\u621624\u53f7\u51fa\u53d1\uff0e
抄百度
绛旓細鍥炵瓟锛5鍑-2绛変簬2
绛旓細鍥炵瓟锛氱惣鏂厛鐢,鎴戞庝箞鏍锋墠鑳藉埌杈剧鍏村尰闄? 浣犲彲浠ュ幓閭h竟鍧57璺叕浜よ溅銆 璋㈣阿,鍝!濂藉鍏充簬鍗曡溅鐨勫浘鐗囥 瀹冧滑鏉ヨ嚜鎴戝湪UsA鐨勮〃鍝ャ傝繖鏄粈涔?涓涓ご鐩,鍦ㄧ編鍥戒汉浠獞鑷杞﹀繀椤昏鎴村ご鐩斻傛垜鏄庣櫧浜,鍣,鍏氦杞︽潵浜,鍐嶈鐞兼柉鍏堢敓銆傚樋,涓嶈鍦ㄧ孩鐏殑鏃跺欒璧般傚櫌,鏄殑鎴戝繀椤昏娉ㄦ剰浜ら氳鍒
绛旓細鏈烘櫤澶氳皨瀛﹂湼浠,甯繖瑙g瓟瑙g瓟,瑕佽繃绋嬪晩,璋㈣阿 鎴戞潵绛 1涓洖绛 #鏀荤暐# 灞呭闃茬柅鑷晳鎵嬪唽 鍖垮悕鐢ㄦ埛 2014-10-05 灞曞紑3鍏ㄩ儴 鏈洖绛旂敱鎻愰棶鑰呮帹鑽 宸茶禐杩 宸茶俯杩< 浣犲杩欎釜鍥炵瓟鐨勮瘎浠锋槸? 璇勮 鏀惰捣 涓轰綘鎺ㄨ崘:鐗瑰埆鎺ㄨ崘 涓轰粈涔堢幇鍦ㄥ緢澶氭儏渚h繃鍏竴鍎跨鑺? 鏈変粈涔堥傚悎澶у鐢熺殑鍓笟? 浜烘劅鏌撶尨鐥樹細鍑虹幇浼氬嚭鐜...
绛旓細x锛濓紞2
绛旓細瓒鏅哄璋嬬殑璇歌憶浜笌鍒樼殗鍙斿垬澶囪璁虹潃澶╀笅澶т簨銆傜煡璇嗘槸鏃犳澧冪殑锛屾垜浠湁浠涔堢悊鐢遍獎鍌茶嚜婊★紝鍥烘鑷皝锛熸垜鍥芥槸涓栫晫涓婁汉鍙d紬澶氱殑鍥藉銆傚皬寮熷紵鍍忎竴涓皬鐚村瓙涓鏍烽〗鐨傚垬澶囬珮鍏村湴瀵瑰叧缇藉叧缇藉紶椋炶浠栧緱鍒拌钁涗寒鍏堢敓锛屽氨鍍忛奔鍎垮緱鍒版按涓鏍枫傛湜閲囩撼锛
绛旓細鐢ㄨ冻鏅哄璋嬪啓涓涓彞瀛愭槸锛氫粬瓒虫櫤澶氳皨锛屾昏兘鎯冲嚭瑙e喅闂鐨勫姙娉曘傜浉鍏崇煡璇嗗涓嬶細1銆佽冻鏅哄璋嬬殑鎰忔濇槸瀵屾湁鏅烘収锛屽杽浜庤皨鍒掋傝繖涓垚璇己璋冪殑鏄汉鐨勬櫤鎱у拰璋嬬暐锛岄氬父鐢ㄦ潵褰㈠閭d簺鏈夊緢楂樻櫤鎱у拰绛栫暐姘村钩鐨勪汉銆2銆佽冻鏅哄璋嬬殑浜洪氬父鍏峰锛岃瀵熷姏寮猴細浠栦滑鑳藉鏁忛攼鍦拌瀵熷懆鍥寸殑浜哄拰浜嬬墿锛屽彂鐜板叾涓殑闂鍜屾満浼氥
绛旓細鏂欎簨濡傜锛岃冻鏅哄璋嬶紝瀛﹁疮涓タ锛屽崥鍙ら氫粖
绛旓細瓒鏅哄璋 璋嬭储瀹冲懡 鍛戒笉璇ョ粷
绛旓細2. 姹備竴绡囦綔鏂棰樼洰涓烘櫤瓒澶氳皨鐨鍞愰泿 鍞愰泿鏄竴涓湁鑳嗘湁璇嗙殑璋嬭嚕銆傛枃涓櫧鐒跺彧鏈変粬鐨勪袱娈佃瘽,鍗翠笉闅...浣嗕粬閿欒鍦颁及璁′簡杩欎釜灏鍥戒娇鑰呯殑鍙嶆姉绋嬪害,鎵浠ュ綋鍞愰泿鍙嶈繃鏉ラ棶浠栦粈涔堟槸鈥滃竷琛d箣鎬掆濇椂,浠栬繕璇翠粈涔堚...绗簩澶╂垜鐪嬩簡浠栫殑浣滄枃,鎴戝樊鐐规病绗戞檿杩囧幓.涓婇潰鍐欓亾:姣旇禌寮濮嬩簡,鍚屽浠儚鑴辩及鐨勯噹鐙椾竴鏍峰啿浜嗗嚭鍘,鎴...
绛旓細1.鏈夎儐鏈夎瘑锛岃冻鏅哄璋嬶紝绁炴満濡欑畻 2.蹇冭兏鐙獎锛屽鎵嶅繉鑳