跪求~绵阳英才2014级(八上)数学寒假作业答案%> 八年级数学寒假作业全部答案
\u7ef5\u9633\u82f1\u624d\u5b66\u6821\u4e09\u521d\u4e8c\u5bd2\u5047\u4f5c\u4e1a\u7b54\u6848\u4f60\u597d\uff0c
\u7ef5\u9633\u82f1\u624d\u5b66\u6821\u4e09\u521d\u4e8c\u5bd2\u5047\u4f5c\u4e1a\u7b54\u6848\u6211\u4e0d\u77e5\u9053\uff0c\u4f46\u662f\u6211\u89c9\u5f97\uff1a
\u5bd2\u5047\u4f5c\u4e1a\u6700\u597d\u81ea\u5df1\u5b8c\u6210\u54e6\uff0c\u8fd9\u6837\u5b66\u4e60\u7684\u77e5\u8bc6\u624d\u80fd\u83b7\u5f97\u5de9\u56fa\u3002
\u6293\u7d27\u65f6\u95f4\u505a\u5427\uff0c\u8d77\u70b9\u65e9\uff0c\u5e26\u70b9\u665a\uff0c\u5c11\u770b\u7535\u89c6\uff0c\u5c11\u73a9\u6e38\u620f\uff0c\u603b\u80fd\u641e\u5b9a\u3002
\u5982\u679c\u65f6\u95f4\u5b9e\u5728\u662f\u7d27\u8feb\uff0c\u5219\u53ef\u4ee5\uff1a
1\u3001\u62a5\u540d\u65f6\u63d0\u524d\u53bb\u6559\u5ba4\uff0c\u627e\u505a\u597d\u540c\u5b66\u5e2e\u5fd9\u3002
2\u3001\u627e\u9ad8\u5e74\u7eaa\u7684\u5927\u54e5\u5927\u59d0\u501f\u3002
3\u3001\u5230\u767e\u5ea6\u6587\u5e93\u91cc\u9762\u81ea\u5df1\u627e\uff0c\u4e00\u822c\u90fd\u4f1a\u6709\u7684\u3002
\u5bd2\u5047\u4f5c\u4e1a\u662f\u5bd2\u5047\u5185\u6559\u5e08\u7ed9\u5b66\u751f\u5e03\u7f6e\u7684\u4f5c\u4e1a\uff0c\u7531\u4e8e\u65f6\u95f4\u8f83\u957f\uff0c\u56e0\u6b64\u901a\u5e38
\u91cf\u8f83\u5927\u3002\u5c0f\u5b66\u7531\u4e8c\u95e8\u5230\u4e09\u95e8\u7ec4\u6210\uff08\u8bed\u6587\u3001\u6570\u5b66\u3001\u82f1\u8bed\uff09\u4e2d\u5b66\u7531\u4e03\u95e8\u5230
\u516b\u95e8\u7ec4\u6210\uff08\u8bed\u6587\u3001\u6570\u5b66\u3001\u82f1\u8bed\u3001\u5386\u53f2\u3001\u653f\u6cbb\uff0c\u4e03\u3001\u516b\u5e74\u7ea7\u52a0\u5730\u7406\u3001\u751f
\u7269\uff0c\u516b\u3001\u4e5d\u5e74\u7ea7\u52a0\u7269\u7406\uff0c\u4e5d\u5e74\u7ea7\u52a0\u5316\u5b66\uff09\u3002\u5bd2\u5047\u4f5c\u4e1a\u8fd1\u5e74\u6765\u6709\u4e86\u65b0\u7684
\u5b9a\u4e49\uff0c\u5c11\u6570\u5b66\u6821\u5c55\u5f00\u4e86\u7d20\u8d28\u5b9e\u8df5\u6d3b\u52a8\uff0c\u5c06\u5bd2\u5047\u4f5c\u4e1a\u53d8\u6210\u6d3b\u52a8\uff0c\u4e30\u5bcc\u5b66
\u751f\u4eec\u7684\u8bfe\u4f59\u751f\u6d3b\uff0c\u4e0d\u8fc7\u5927\u591a\u6570\u4f5c\u4e1a\u901a\u5e38\u90fd\u4ee5\u4e66\u9762\u5f62\u5f0f\u5c55\u73b0\u3002
11.1\u4e0e\u4e09\u89d2\u5f62\u6709\u5173\u7684\u7ebf\u6bb5
1-4\u9898A B B C
5\u30012c\uff1b6\u300116cm\uff1b7\u3001\uff081\uff09AB;\uff082\uff09CD\uff1b(3)EF\uff1b\uff084\uff093cm\uff1b3cm\uff1b8\u300110
9\u9898\uff081\uff0920\u5ea6\uff1b\uff082\uff092\u5206\u4e4b1\u2220EAD=\u2220C-\u2220B\u7406\u7531\u5982\u4e0b\uff1a\u7531\uff081\uff09\u77e5\uff0c\u2220EAD=\u2220EAC-\u2220DAC=2\u5206\u4e4b\u4e00\u2220BAC-(90\u00b0-\u2220C)\u2460
\u628a\u2220BAC=180\u00b0-\u2220B-\u2220C\u4ee3\u5165\u2460\uff0c\u6574\u7406\u5f97EAD=2\u5206\u4e4b\u4e00\u2220C-2\u5206\u4e4b\u4e00\u2220B\uff0c\u6240\u4ee52\u2220EAD=\u2220C-\u2220B.
11.2.1\u4e09\u89d2\u5f62\u7684\u5185\u89d2
1\u300190\u00b0\uff1b2\u300150\u00b0\uff1b3\u3001100\u00b0\uff1b4\u300120\u00b0\uff1b5\u3001300\u00b0\uff1b6\u300150\u00b0\uff1b7\u3001B 8\u3001C\uff1b9\u9898120\u5ea6\uff1b10\u989836\u5ea6\uff1b11\u9898\uff081\uff0975\u5ea6\uff1b\uff082\uff0975\u5ea6\u3002
11.2.2\u4e09\u89d2\u5f62\u7684\u5916\u89d2
1\u3001B 2\u3001C 3\u3001C 4\u3001C 5\u3001180\u5ea6\uff1b6\u3001115\u5ea6\uff1b7\u9898\u89e3\uff1a\u56e0\u4e3a\u2220ADC=\u2220B+\u2220BAD.\u2220DAC=\u2220EAC+\u2220DAE;\u53c8\u56e0\u4e3a\u2220ADC=\u2220DAC;\u2220B=\u2220EAC\u6240\u4ee5\u2220BAD=\u2220DAE\u6240\u4ee5AD\u5e73\u5206 \u2220BAE
8\u9898\uff081\uff092\u2220F=\u2220B+\u2220D
\uff082\uff09x=3
11.3\u591a\u8fb9\u5f62\u53ca\u5176\u5185\u89d2\u548c
1\u3001A 2B 3C 4B 5A 6D 7\u9898\u516b\uff1b8\u9898120\u5ea6\uff1b40\u5ea6\uff1b80\u5ea6\uff1b120\u5ea69\u9898900\u5ea6\uff1b10\u9898\u4e5d\uff1b11\u9898540\u5ea6\uff1b12\u9898540\u5ea6\uff1b13\u9898\u8bc1\u660e\u56e0\u4e3a\u5728\u56db\u8fb9\u5f62ABCD\u4e2d\uff0c\u2220A=\u2220C=90\u5ea6\uff0c\u6240\u4ee5\u2220ABC+\u2220CDA=180\u5ea6\uff0c\u56e0\u4e3a\u22201=\u22202,\u22203=\u22204\uff0c\u6240\u4ee5\u22202+\u22203=90\u5ea6\u3002\u56e0\u4e3a\u2220A=90\u5ea6\uff0c\u6240\u4ee5\u22201+\u2220AEB=90\u5ea6\u3002\u56e0\u4e3a\u22201=\u22202\uff0c\u6240\u4ee5\u2225AEB=\u22203\u3002\u6240\u4ee5BE\u2225FD
\u7b2c\u5341\u4e8c\u7ae0
12.1 \u5168\u4e09\u89d2
1\u3001A 2\u3001B 3\u3001B 4\u3001D 5\u3001120\u5ea6 6 \uff081\uff09\u8bc1\u660e\u4e09\u89d2\u5f62\u76f8\u4f3c\uff082\uff09\u8bc1\u660e\u76f8\u4f3c\u5e76\u5012\u89d2\u8ba1\u7b97 7\u3001\u5229\u7528\u7ed9\u51fa\u89d2\u5ea6\u8fdb\u884c\u5012\u89d2\u8bc1\u660e\u76f8\u4f3c\u5373\u53ef\u7b97\u51fa \u89d2DAE\u4e3a73\u5ea6 \u89d2CEF\u4e3a34\u5ea6
12.2\u4e09\u89d2\u5f62\u5168\u7b49\u7684\u5224\u5b9a
\u7b2c\u4e00\u8bfe\u65f6\uff1a1\u3001D 2\u3001D 3\u30012 4\u3001AE=AD 5\u3001\u8bc1\u660e\u5168\u7b49 6\u3001\u5229\u7528\u6761\u4ef6\u8bc1\u660e\u5168\u7b49 7\u3001\u8bc1\u660e\u4e09\u89d2\u5f62\u5168\u7b49\u5e76\u5012\u89d2\u3002
\u7b2c\u4e8c\u8bfe\u65f6\uff1a1\u3001C 2\u3001AB=AC 3\u3001AE=AC 4\u3001AE=AF \u5229\u7528\u6761\u4ef6\u8bc1\u660e\u5168\u7b49 5\u3001\u8bc1\u660e\u5168\u7b49\uff08SAS\uff096\u3001\uff081\uff09\u3001\u5229\u7528E\u4e3a\u4e2d\u70b9\u8bc1\u660e\u4e24\u4e09\u89d2\u5f62\u5168\u7b49\uff08SAS\uff09 \uff082\uff09\u3001\u65cb\u8f6c \uff083\uff09\u3001\u8bc1\u660e\u4e09\u89d2\u5f62\u5168\u7b49\u5e76\u5ef6\u957fBE\u5012\u89d2\u5373\u53ef\u8bc1\u660e\u4e3a\u201c\u5782\u76f4\u201d\u5173\u7cfb\u3002
\u7b2c\u4e09\u8bfe\u65f6\uff1a1\u3001D 2\u3001D 3\u3001\u4e0d\u662f AC=DF\u6216\u89d2B=\u89d2E\u6216\u89d2A=\u89d2D\uff08\u7b54\u6848\u4e0d\u552f\u4e00) 4\u3001\u540c\u4e0a\u7b54\u6848\u4e0d\u552f\u4e00 5\u3001\u5229\u7528\u5e73\u884c\u5173\u7cfb\u8bc1\u660e\u5168\u7b49 6\u3001\uff081\uff09AB=AD\uff08\u7b54\u6848\u4e0d\u552f\u4e00\uff09 \uff082\uff09\u7565 7\u3001\u5168\u7b49\uff08AAS\uff09
\u7b2c\u56db\u8bfe\u65f6\uff1a1\u3001C 2\u3001B 3\u3001\u9002\u5408\u4e00\u4e2a\u5373\u53ef 4\u3001\uff081\uff09\u7565\uff08HL\uff09 \uff082\uff09 \u7531\u4e00\u53ef\u77e5\u89d2ACF\u4e3a60\u5ea6\u3002
5\u3001\u5229\u7528ABCD\u4e3a\u6b63\u65b9\u5f62\u8bc1\u660e \u4e09\u89d2\u5f62\u5168\u7b49 \u540c\u65f6\u8bc1\u660e\u8fb9\u76f8\u7b49\u3002 6\u3001DE=DF(\u6216CE//BF\u6216\u89d2ECD=\u89d2DBF\u6216\u89d2DEC=\u89d2DFB\u7b49\uff09 \u7565\u3002
12.3 \u4ea4\u7684\u5e73\u5206\u7ebf\u7684\u6027\u8d28
\u7b2c\u4e00\u8bfe\u65f6\uff1a1\u3001D 2\u3001D 3\u30016 4\u3001\u5782\u76f4 5\u30018 6\u3001\u5229\u7528\u5168\u7b49\u5012\u8fb9AB=4cm 7\u3001\u7565
\u7b2c\u4e8c\u8bfe\u65f6\uff1a1\u3001D 2\u3001B 3\u300190\u5ea6 4\u3001\u7565 5\u3001\u5229\u7528\u4e24\u6b21\u4e09\u89d2\u5f62\u5168\u7b49\u8bc1\u660e\u5373\u53ef 6\u3001\u5229\u7528\u4e09\u89d2\u5f62\u5168\u7b49(AAS\uff09\u7136\u540e\u7b49\u91cf\u4ee3\u6362\u3002
\u7b2c\u5341\u4e09\u7ae013.1.1\u8f74\u5bf9\u79f0
1\u3001D2D3\u2460\u2461\u24624\u3001\u8f74\u5bf9\u79f0\u30015 \uff1b5\u98984\u53cd\u8fc7\u67654 \uff1b6\u989810cm\u5e73\u65b9\uff1b7\u9898\u2220ABC=60\u5ea6\uff0c\u2220C=30\u5ea6
13.1.2\u7ebf\u6bb5\u7684\u5782\u76f4\u5e73\u5206\u7ebf\u7684\u6027\u8d28
1\u3001D2B3B4\u9898\u70b9P\u5728BC\u7684\u5782\u76f4\u5e73\u5206\u7ebf\u4e0a\u3002
5\u9898\u89e3\uff1aAB+BD=DE
\u8bc1\u660e\uff1a\u56e0\u4e3aAD\u22a5BC,BD=DC\uff0c\u6240\u4ee5\u70b9A\u5728BC\u7684\u5782\u76f4\u5e73\u5206\u7ebf\u4e0a\u3002\u6240\u4ee5AB=AC\u3002\u56e0\u4e3a\u70b9A\u5728AE\u7684\u5782\u76f4\u5e73\u5206\u7ebf\u4e0a\uff0c\u6240\u4ee5AC=EC.\u6240\u4ee5AB=EC.\u56e0\u4e3aBD=DC,DE=CD+CE,\u6240\u4ee5DE=AB+BD
6\u9898\u89e3\uff1a\uff081\uff09AC=BC=AD=BD,OC=OD,OA=OB.
\uff082\uff09OE=OF.\u56e0\u4e3aAB\u5782\u76f4\u5e73\u5206CD\uff0c\u6240\u4ee5\u89d2AOC=\u89d2AOD\uff0cOC=OD.\u5728\u4e09\u89d2\u5f62AOC\u548c\u4e09\u89d2\u5f62AOD\u4e2d\uff0c
AO=AO,
\u2220AOC=\u2220AOD
OC=OD
\u6240\u4ee5\u4e09\u89d2\u5f62AOC\u224c\u4e09\u89d2\u5f62AOD\uff08SAS\uff09\u3002\u6240\u4ee5\u2220CAO=\u2220DAO\uff0c\u53c8OE\u22a5 AC,OF\u22a5AD\uff0c\u6240\u4ee5OE=OF
7\u9898\u89d2B=30\u5ea6
13.2\u753b\u8f74\u5bf9\u79f0\u56fe\u5f62\u7b2c\u4e00\u8bfe\u65f6
1\u3001D\uff1b2\u3001D\uff1b3\u3001\u7565\uff1b4\u9898\uff081\uff09\u7565\uff1b\uff082\uff09\u5168\u7b49\u4e09\u89d2\u5f62\u6709\uff1a\u25b3ACB\u224c\u25b3AEB,\u25b3ACD\u224c\u25b3AED,\u25b3BCD\u224c\u25b3BED.
5\u9898\u7565
\u7b2c\u4e8c\u8bfe\u65f61A,2\uff082\uff0c-3\uff09\u30023\uff08-2\uff0c-3\uff09\uff0c\u5782\u76f4\uff1b4\u9898\u56fe\u7565\u3002A1\uff080,2\uff09,B1\uff08-3\uff0c-5\uff09C1\uff085,0\uff09
5\u9898\uff081\uff09\u56fe\u7565\u3002\uff082\uff09\u82e5P1\uff08x1\uff0cy1\uff09\u5173\u4e8ex=1\u5bf9\u79f0\u7684\u70b9\u7684\u5750\u6807\u662fp2\uff08x2\uff0cy2\uff09\uff0c\u5219x1+x2=2\uff0cy1=y2.
6\u9898\uff081\uff09a=\u8d1f5\u5206\u4e4b4\uff0cb=\u8d1f5\u5206\u4e4b3.(2 )a+b=5\u5206\u4e4b7
13.3\u7b49\u8170\u4e09\u89d2\u5f6213.3.1\u7b49\u8170\u4e09\u89d2\u5f62\u7b2c\u4e00\u8bfe\u65f6
1\u3001D2\u3001D\uff1b3B\uff1b4C\uff1b5\u989836\u5ea6
6\u9898\u89e3\uff1a\u25b3ABE\u224c\u25b3ACD,\u25b3BCD\u224c\u25b3CBE\u6216\u25b3BFD\u224c\u25b3CFE\uff08\u5199\u51fa\u4e24\u4e2a\u5373\u53ef\uff09\u3002\uff08\u9009\u4e00\u7ec4\u4e09\u89d2\u5f62\u5168\u7b49\u8bc1\u660e\u7565\uff09
7\u9898\uff081\uff09\u8bc1\u660e\uff1a\u5728\u4e09\u89d2\u5f62ACD\u548c\u4e09\u89d2\u5f62ABE\u4e2d
\u2220A=\u2220A,\u2220ADC=\u2220AEB=90\u00b0,AC=AB
\u6240\u4ee5\u4e09\u89d2\u5f62ACD\u224c\u4e09\u89d2\u5f62ABE
\u6240\u4ee5AD=AE.
\uff082\uff09\u89e3\uff1a\u4e92\u76f8\u5782\u76f4\u3002\u7406\u7531\uff1a\u5728RT\u25b3ADO\u548cRT\u25b3AEO\u4e2d\uff0c\u56e0\u4e3aOA=OA,AD=AE\u6240\u4ee5RT\u25b3ADO\u224cTR\u25b3AEO\u6240\u4ee5\u2220DAO=\u2220EAO,\u5373OA\u662f\u2220BAC\u7684\u5e73\u5206\u7ebf\u3002\u53c8\u56e0\u4e3aAB=AC\uff0c\u6240\u4ee5OA\u22a5BC.
\u7b2c\u4e8c\u8bfe\u65f6
1\u3001B\uff1b2\u3001A\uff1b3\u300110cm\uff1b4\u30013\uff1b5\u3001\u25b3ABC\uff08\u6216\u25b3BDC\u6216\u25b3DAB\uff09\uff08\u8bc1\u660e\u7565\uff09
6\u9898\u89e3\uff081\uff09AD=AE.\u7406\u7531\u5982\u4e0b\uff1a\u56e0\u4e3aEF\u22a5BC,\u6240\u4ee5\u2220E=\u2220C=90\uff0c\u2220BDF+\u2220B=90\u00b0.\u56e0\u4e3a\u2220BDF+\u2220ADE\u6240\u4ee5\u2220ADE+\u2220B=90\u00b0.\u53c8\u56e0\u4e3aAB=AC,\u6240\u4ee5\u2220B=\u2220C.\u6240\u4ee5\u2220ADE=\u2220E.\u6240\u4ee5AD=AE.
\uff082\uff09\u7565
7\u9898\uff081\uff09\u8bc1\u660e\uff1a\u56e0\u4e3aOB=OC,\u6240\u4ee5\u2220OBC\u2220OCB.\u56e0\u4e3aBD\u3001CE\u662f\u25b3ABC\u7684\u9ad8\uff0c\u6240\u4ee5\u2220BDC=\u2220CEB=90\u00b0.
\u5728RT\u25b3BDC\u4e2d\uff0c\u2220BCD=90\u00b0-\u2220DBC\uff1b
\u5728RT\u25b3CEB\u4e2d\uff0c\u2220BCD=90\u00b0-\u2220ECB.\u6240\u4ee5\u2220BCD=\u2220CBE.\u6240\u4ee5AB=AC,\u5373\u25b3ABC\u662f\u7b49\u8170\u4e09\u89d2\u5f62\u3002
(2)\u89e3\uff1a\u70b9O\u5728BAC\u7684\u89d2\u5e73\u5206\u7ebf\u4e0a\u3002\u7406\u7531\u5982\u4e0b\uff1a\u5728RT\u25b3ABD\u548cTR\u25b3ACE\u4e2d\uff0c\u2220A=\u2220A,\u2220ADB=\u2220AEC=90\u00b0\uff0cAB=AC\u6240\u4ee5TR\u25b3ABD \u224c RT\u25b3ACE.\u6240\u4ee5BD=CE.\u56e0\u4e3aOB=OC,\u6240\u4ee5OD=OE.\u6240\u4ee5\u70b9O\u5728BAC\u7684\u89d2\u5e73\u5206\u7ebf\u4e0a\u3002
13.3.2\u7b49\u8fb9\u4e09\u89d2\u5f62
1\u3001D;2\u300117\uff1b3\u9898\u8bc1\u660e\uff1a\u56e0\u4e3aAB=AC,\u2220BAC=120\u00b0\uff0c\u6240\u4ee5\u2220B=\u2220C=30\u00b0\u6240\u4ee5\u5728RT\u25b3ADC\u4e2d\uff0cCD=2AD.\u56e0\u4e3a\u2220BAC=120\u00b0\uff0c\u6240\u4ee5\u2220BAD=120\u00b0-90\u00b0=30\u00b0\u6240\u4ee5\u2220B=\u2220BAD.\u6240\u4ee5AD=BD.\u6240\u4ee5BC=3AD
4\u9898\u8bc1\u660e\uff1a\u56e0\u4e3a\u4e09\u89d2\u5f62ABC \u548c\u4e09\u89d2\u5f62DEC\u662f\u7b49\u8fb9\u4e09\u89d2\u5f62\uff0c\u6240\u4ee5BC=AC,CD=CE,\u2220ABC=\u2220BCA=\u2220ECD=60\u00b0\u6240\u4ee5\u2220BCA-\u2220DCA=\u2220ECD-\u2220DCA,\u5373\u2220BCD=\u2220ACE.\u56e0\u4e3a\u5728\u4e09\u89d2\u5f62ACE\u548c\u4e09\u89d2\u5f62BCD\u4e2d\uff0cAC=BC,\u2220ACE=\u2220BCD,CD=CE,\u6240\u4ee5\u25b3ACE\u224c\u25b3BCD.\u6240\u4ee5\u2220EAC=\u2220B=60\u00b0=\u2220ACB.\u6240\u4ee5AE\u2225BC.
5\u9898\uff081\uff09\u89e3\u505a\u56fe\u7565\uff082\uff09\u8bc1\u660e\uff1a\u56e0\u4e3a\u4e09\u89d2\u5f62ABC \u662f\u7b49\u8fb9\u4e09\u89d2\u5f62\uff0cD\u662fAC\u7684\u4e2d\u70b9\uff0c\u6240\u4ee5BD\u5e73\u5206\u89d2ABC.\u6240\u4ee5\u89d2ABC=2\u89d2DBE.\u56e0\u4e3aCE=CD,\u6240\u4ee5\u89d2CED=\u89d2CDE.\u53c8\u56e0\u4e3a\u89d2ACB=\u89d2CED+\u89d2CDE,\u6240\u4ee5\u89d2ACB=2\u89d2CED.\u53c8\u56e0\u4e3a\u89d2ABC=\u89d2ACB,\u6240\u4ee5\u89d2DBC=\u89d2CED,\u6240\u4ee5DB=DE.\u53c8\u56e0\u4e3aDE\u5782\u76f4BE,\u6240\u4ee5
BM=EM\uff08\u4e09\u7ebf\u5408\u4e00\uff09
\u7b2c\u5341\u56db\u7ae014.1.1\u540c\u5e95\u6570\u5e42\u7684\u4e58\u6cd5
1\u3001A2\u3001C3\u3001C4\u3001D
5\u98985\uff1b6\u989840\uff1b7\u98982\u768499\u6b21\u65b9\uff1b8\u9898\uff081\uff090\uff1b\uff082\uff090.9\u9898x=5\uff1b10\u9898m=3.
14.1.2\u5e42\u7684\u4e58\u65b9
1\u3001D;2\u3001B\uff1b3\u3001C\uff1b4\u3001C\uff1b5\u30010\uff1b6\u30012\uff1b7\u30012\u4e58\u4ee5x\u768412\u6b21\u65b9\uff1b8\u98982187\uff1b9\u989830625\uff1b10\u9898\uff081\uff092\u76846\u6b21\u65b9\uff1b2\u76846\u6b21\u65b9\uff1b3\u76846\u6b21\u65b9\uff1b3\u76846\u6b21\u65b9\uff1b\u5c0f\u62ec\u53f73\u76842\u6b21\u65b9\u76843\u6b21\u65b9=\u7b49\u4e8e\u5c0f\u62ec\u53f73\u76843\u6b21\u65b9\u76842\u6b21\u65b9\uff1b4\u76846\u6b21\u65b9\uff1b4\u76846\u6b21\u65b9\uff1b\u5c0f\u62ec\u53f7\u8d1f4\u76843\u6b21\u65b9\u4e2d\u62ec\u53f7\u76842\u6b21\u65b9=\u5c0f\u62ec\u53f7\u8d1f4\u76842\u6b21\u65b9\u4e2d\u62ec\u53f7\u76843\u6b21\u65b9\u3002
\uff082\uff09a\u7684m\u6b21\u5c0f\u62ec\u53f7\u7684n\u6b21\u65b9=a\u7684n\u6b21\u65b9\u5c0f\u62ec\u53f7\u7684m\u6b21\u65b9\u3002
\uff083\uff09a\u76843\u6b21\u65b9\u3002
14.1.3\u79ef\u5f97\u4e58\u65b9
1\u3001D\uff1b2\u3001C\uff1b3\u9898m=3\uff0cn=2\uff1b4\u98985\u7684\u5e73\u65b9\u4e58\u4ee55\u76843\u6b21\u65b9\u4e58\u4ee55\u76845\u6b21\u65b9\u5c0f\u4e8e5\u76842\u6b21\u65b9\u5c0f\u62ec\u53f73\u6b21\u65b9\u4e58\u4ee55\u76845\u6b21\u65b9\u5c0f\u4e8e5\u76842\u6b21\u65b9\u4e58\u4ee55\u76843\u6b21\u65b9\u5c0f\u62ec\u53f7\u76845\u6b21\u65b9\uff1b5\u9898a\u768426\u6b21\u65b9\u4e58\u4ee5b\u768430\u6b21\u65b9\uff1b6\u9898243\uff1b7\u9898216.
14.1.4\u6574\u5f0f\u4e58\u6cd5\u7b2c\u4e00\u8bfe\u65f61\u3001C\uff1b2\u3001D\uff1b3\u3001A\uff1b4\u3001D\uff1b5\u3001C\uff1b6\u9898\u2461\u2464\uff1b7\u9898-12xde6\u6b21\u65b9\u4e58\u4ee5y\u76847\u6b21\u65b9\uff1b8\u98988\u5206\u4e4b3\u03c0\u4e58\u4ee5y\u76842\u6b21\u65b9\uff1b9\u98982.
\u7b2c\u4e8c\u8bfe\u65f61\u3001A\uff1b2\u3001D\uff1b3\u3001B\uff1b4\u98984a\u7684\u5e73\u65b9+7ab-15b\u7684\u5e73\u65b9\uff1b5\u9898-6\uff1b6\u989812\uff1b7\u9898\uff081\uff09m\u76843\u6b21\u65b9+n\u76843\u6b21\u65b9\uff1b\uff082\uff092y\u76843\u6b21\u65b9+3y\u76842\u6b21\u65b9-21y+5\u3002
8\u9898\u628a\u539f\u5f0f\u5316\u7b80\u62106\uff082n-1\uff09\u65e0\u8bban\u4e3a\u4f55\u975e\u96f6\u81ea\u7136\u6570\uff0c2n-1\u90fd\u662f\u5947\u6570\uff0c\u6240\u4ee5\u4ee3\u6570\u5f0fn\uff08n+7\uff09-\uff08n-3\uff09\uff08n-2\uff09\u7684\u503c\u90fd\u80fd\u88ab6\u6574\u9664\u30029\u9898\u8bc1\u660e\u539f\u5f0f=12\u6240\u4ee5\u4e0ex\u7684\u53d6\u503c\u65e0\u5173\u3002
10\u989877\uff1b
11\u9898\uff081\uff09\u8ba1\u7b97\u6a2a\u65ad\u9762\u79ef\u4e3a2\u5206\u4e4b1a\u76842\u6b21\u65b9+2\u5206\u4e4b1ab\u7136\u540e\u4e0b\u7ed3\u8bba\u5c31\u53ef\u4ee5\u4e86\uff1b
\uff082\uff09\uff0850a\u7684\u5e73\u65b9+50ab\uff09\u3002
\u7b2c\u4e09\u8bfe\u65f61\u3001B\uff1b2\u3001C\uff1b4\u3001C\uff1b5\u9898-4a\u65b9b\uff1b6\u9898-\uff08m-n\uff09\u76843\u6b21\u65b9\uff1b7\u989812\uff1b8\u9898\uff081\uff092ab\u76842\u6b21\u65b9\uff1b\uff082\uff097a\u65b9b3\u6b21\u65b9+6a\u65b9b\u76844\u6b21\u65b9\uff1b9\u9898\u53ef\u4e70\u94a2\u7b14100\u652f\uff0c\u53ef\u4e70\u7b14\u8bb0\u672c300\u652f\u3002
14.2\u4e58\u6cd5\u516c\u5f0f14.2.1\u5e73\u65b9\u5dee\u516c\u5f0f
1\u3001C\uff1b2\u3001A\uff1b3\u3001A\uff1b4\u3001C\uff1b5\u3001B\uff1b6\u3001A\uff1b7\u9898\uff081\uff099964\uff1b\uff082\uff095x\u7684\u5e73\u65b9-5y\u76842\u6b21\u65b9\u2018\uff1b\uff083\uff09x\u76844\u6b21\u65b9-y\u76844\u6b21\u65b9\u30028\u9898-6\uff1b9\u9898\u89e3\uff1a\u80fd\uff0c\u7406\u7531\u5982\u4e0b\uff1aA=15n\u7684\u5e73\u65b9\u3002\u56e0\u4e3an\u662f\u6b63\u6574\u6570\uff0c\u6240\u4ee515n\u7684\u5e73\u65b9\u4e00\u5b9a\u80fd\u88ab15\u6574\u9664\u3002 10\u98982\u7684128\u6b21\u65b9\u3002
14.2.2\u5b8c\u5168\u5e73\u65b9\u516c\u5f0f\u7b2c1\u8bfe\u65f61\u3001D\uff1b2\u3001D\uff1b3\u98982\uff1b4\u98984b\uff1b4a\u65b9\uff1b16ab\u30025\u989814\uff1b6\u9898-2\uff1b7\u9898\uff081\uff0945\uff1b\uff082\uff0957\uff1b8\u9898124\uff1b9\u98988xy\u3002
\u7b2c2\u8bfe\u65f61\u3001B\uff1b2\u3001C\uff1b3\u98986x\uff1b4\u98984y\u65b9-9x\u65b9-z\u65b9-6xz\uff1b5\u9898a\u65b9+b\u65b9+c\u65b9+2ab-2bc-2ac\uff1b6\u98984yz\uff1b7\u9898\u5927\u4e8e\uff1b\u5927\u4e8e\uff1b\u5927\u4e8e\uff1b=\uff1b\u89c4\u5f8b\u4e3aa\u65b9+b\u65b9\u5927\u4e8e\u6216\u7b49\u4e8e2ab\u3002\u8bc1\u660e\uff1a\u56e0\u4e3aa\u65b9-2ab+b\u7684\u5e73\u65b9=\uff08a-b\uff09\u65b9\u5927\u4e8e\u6216\u7b49\u4e8e0\uff0c\u6240\u4ee5a\u65b9+b\u65b9\u5927\u4e8e\u6216\u7b49\u4e8e2ab\u3002
8\u98987.
14.3\u56e0\u5f0f\u5206\u89e314.3.1\u63d0\u516c\u56e0\u5f0f\u6cd51\u3001C\uff1b2\u3001C\uff1b3\u3001B\uff1b4\u3001D\uff1b5\u9898\uff08x-y\uff09\uff08a+b+c\uff09\uff1b6\u9898x\u65b9\uff082x-1\uff09\uff1b7\u98983\uff08m+n\uff09\uff08m-n\uff09;8\u98989a\u65b9+3a-2\uff1b9\u9898-6\uff1b10\u9898141.3m\u65b9\u3002
14.3.2\u516c\u5f0f\u6cd5\u7b2c1\u8bfe\u65f61\u3001D\uff1b2\u3001B\uff1b3\u3001D\uff1b4\u9898-198000\uff1b5200.5\u9898-12\uff1b6\u98983m\uff082x-y+n\uff09\uff082x-y-n\uff09\uff1b7\u9898\uff081\uff09x\uff08x+3\uff09\uff08x-3\uff09\uff1b\uff082\uff09m\u65b9\uff08m+n\uff09\uff08m-n\uff09\uff1b\uff083\uff09-3\uff08p-q\uff09\uff08p+q\uff09\uff1b8\u9898a\uff08a+3\uff09\uff08a-3\uff09\uff1b9\u9898\uff08x+4y\uff09\uff08x-4y\uff09\uff1b10\u98985050.
\u7b2c2\u8bfe\u65f61\u3001C\uff1b2\u3001A\uff1b3\u3001D\uff1b4\u9898b\uff08a+1\uff09\u65b9\uff1b5\u9898\uff081\uff0910\u76846\u6b21\u65b9\uff1b\uff082\uff094\uff1b
6\u9898x=y\u3002
\u7b2c\u5341\u4e94\u7ae0\u5206\u5f0f15.1\u5206\u5f0f15.1.1\u4ece\u5206\u6570\u5230\u5206\u5f0f1\u3001B2\u3001D3\u3001D4B\uff1b5\u9898\uff081\uff098x\uff0cx\u5206\u4e4b80\uff1b\uff082\uff09a+b\uff1ba-b\uff1b\uff083\uff094\u5206\u4e4bx-y\u30026\u9898\uff081\uff09\u8ddf\u636e\u9898\u610f\uff0c\u5f972x-4\u4e0d\u7b49\u4e8e0\uff0c\u89e3\u5f97x\u4e0d\u7b49\u4e8e2.\u6240\u4ee5x\u4e0d\u7b49\u4e8e2\u65f6\u539f\u5f0f\u6709\u610f\u4e49\u3002\uff082\uff09\u6839\u636e\u9898\u610f\uff0c\u5f97x-3=0\uff0c\u89e3\u5f97x=3.\u6240\u4ee5x=3\u65f6\u539f\u5f0f\u503c\u4e3a0.\uff083\uff09\u6839\u636e\u9898\u610f\uff0c\u5f97x-3=2x-4.\u89e3\u5f97x=1.\u6240\u4ee5x=1\u65f6\uff0c\u539f\u5206\u5f0f\u503c\u4e3a\u6b63\u6570\u3002\uff084\uff09\u6839\u636e\u9898\u610f\uff0c\u5f97x-3\u5927\u4e8e0\uff0c\u4e142x-4\u5927\u4e8e0.\u89e3\u5f97x\u5927\u4e8e3.\u6216x-3\u5c0f\u4e8e0\u4e142x-4\u5c0f\u4e8e0\uff0c\u89e3\u5f97x\u5c0f\u4e8e2.\u6240\u4ee5x\u5927\u4e8e3\u6216x\u5c0f\u4e8e2\u65f6\u5206\u5f0f\u7684\u503c\u4e3a\u6b63\u6570\u3002\uff085\uff09\u6839\u636e\u9898\u610f\uff0c\u5f97x-3\u5927\u4e8e0\u4e142x-4\u5c0f\u4e8e0.\u65e0\u89e3\u3002\u6216x-3\u5c0f\u4e8e0\u4e142x-4\u5927\u4e8e0.\u89e3\u5f972\u5c0f\u4e8ex\u5c0f\u4e8e3.\u6240\u4ee5\u5f532\u5c0f\u4e8ex\u5c0f\u4e8e3\u65f6\uff0c\u5206\u5f0f\u7684\u503c\u4e3a\u8d1f\u6570\u30027\u9898\uff081\uff09-a\u768410\u6b21\u65b9\u5206\u4e4bb\u768429\u6b21\u65b9\u3002\uff082\uff09\uff08-1\uff09\u7684n+1\u6b21\u4e58\u4ee5a\u7684n\u6b21\u65b9\u5206\u4e4bb\u76843n-1\u6b21\u3002
15.1.2\u5206\u5f0f\u7684\u57fa\u672c\u6027\u8d28\u7b2c1\u8bfe\u65f61\u3001B2\u3001C3\u3001D4\u3001C\u30015\u9898\uff081\uff094a\u5206\u4e4b1\uff1b\uff082\uff09x-3\u5206\u4e4bx+3.6\u9898\u539f\u5f0f=x+y\u5206\u4e4b2\uff08x-y\uff09\uff1b-5\u5206\u4e4b2.7\u9898\u7565\u3002
\u7b2c2\u8bfe\u65f61\u3001C\uff1b2\u3001C\uff1b3\u3001A\uff1b4\u9898\uff081\uff09\u6700\u7b80\u516c\u5206\u6bcd\u662f6x\u65b9y\u5177\u4f53\u901a\u5206\u7565\u3002\uff082\uff09\u6700\u7b80\u516c\u5206\u6bcd\u662f\uff08x+2\uff09\uff08x-2\uff09\u5177\u4f53\u901a\u5206\u7565\u30025\u9898\uff081\uff09\u6700\u7b80\u516c\u5206\u6bcd\u662f12a\u65b9bc\u65b9\u5177\u4f53\u7565\uff1b\uff082\uff09\u6700\u7b80\u516c\u5206\u6bcd\u662f2\uff08y+2\uff09\uff08y-2\uff09\u65b9\u5177\u4f53\u901a\u5206\u7565\u300215.2\u5206\u5f0f\u7684\u8fd0\u7b9715.2.1\u5206\u5f0f\u7684\u4e58\u9664\u7b2c1\u8bfe\u65f61\u3001A2\u3001C3\u3001A4\u3001bm\u5206\u4e4ban\u30025\u9898\uff081\uff09yc\u3002\uff082\uff09-x\u65b9y\u3002\uff083\uff092\u5206\u4e4b1.\uff084\uff09x+y\u5206\u4e4bx+3y\u30026\u9898-1.7\u9898\uff081\uff09-y\u5f972\u6b21\u65b9\u5206\u4e4bx\u76845\u6b21\u65b9\u9664\u4ee5y\u5206\u4e4bx\u76843\u6b21\u65b9=-y\u5206\u4e4bx\u76842\u6b21\u65b9\uff0cy\u76843\u6b21\u65b9\u5206\u4e4bx\u76847\u6b21\u65b9\u9664\u4ee5\uff08-y\u65b9\u5206\u4e4bx\u76845\u6b21\u65b9\uff09\u2026\u2026\u4efb\u610f\u4e00\u4e2a\u5206\u5f0f\u9664\u4ee5\u524d\u9762\u7684\u5206\u65f6\uff0c\u7ed3\u679c\u662f-y\u5206\u4e4bx\u76842\u6b21\u65b9\u3002\uff082\uff09\u8fd9\u5217\u5206\u5f0f\u7684\u7b2c7\u4e2a\u5206\u5f0f\u662fy\u76847\u6b21\u65b9\u5206\u4e4bx\u768415\u6b21\u65b9\u3002\u7b2c2\u8bfe\u65f61\u3001B2\u3001A3\u3001C4\u9898x\u65b9\u5206\u4e4b1\uff1b5\u9898\uff081\uff09a-b\u5206\u4e4bb\u76844\u6b21\u65b9\u3002\uff082\uff09a\u5206\u4e4bb-a\uff1b6\u9898a-1\u5206\u4e4b2\uff1b7\u9898a-1\u5206\u4e4ba+1.
15.2.2\u5206\u5f0f\u7684\u52a0\u51cf\u7b2c1\u8bfe\u65f61\u98980\uff1b2\u9898x-1\u5206\u4e4b1.3\u9898C\uff1b4\u9898\u539f\u5f0f=a+2\u5206\u4e4b2\uff1b5\u5206\u4e4b2
\u7b2c2\u8bfe\u65f61\u3001A2D3\u98982\u5206\u4e4b1\uff1b4\u9898x+1\u5206\u4e4b4\uff1b5\u9898m\u20146.6\u9898\u539f\u5f0f=2a+8\uff1b6\uff1b7\u9898\u539f\u5f0f=x-2\u5206\u4e4bx+1\uff1bx\u6ee1\u8db3-2\u5c0f\u4e8e\u7b49\u4e8ex\u5c0f\u4e8e\u7b49\u4e8e2\u4e14\u4e3a\u6574\u6570\uff0c\u82e5\u4f7f\u5206\u5f0f\u6709\u610f\u4e49\uff0cx\u53ea\u80fd\u53d60\uff0c-2.\u5f53x=0\u65f6\u539f\u5f0f=-2\u5206\u4e4b1\uff1b\u5f53x=-2\u65f6\uff0c\u539f\u5f0f=4\u5206\u4e4b1.8\u9898\u539f\u5f0f\u5316\u7b80\u540e\u4e3ax+1\u5206\u4e4bx-1\uff0c\u5728-4\u5c0f\u4e8ex\u5c0f\u4e8e-2\uff0c\u56e0\u4e3ax\u4e3a\u6574\u6570\uff0c\u6240\u4ee5x=-3.\u5f53x=-3\u65f6\uff0c\u539f\u5f0f=2.
15.2.3\u6574\u6570\u6307\u6570\u5e42\u7b2c1\u8bfe\u65f61\u3001C2\u3001A3\u3001D4\u9898-a\u65b9\u5206\u4e4b8.5\u9898\uff08-3\uff09\u76841-n\u6b21\u65b9x\u7684n\u6b21\u65b9\uff1b6\u98980\uff1b7\u98985\uff1b8\u98988\u3002\u7b2c2\u8bfe\u65f61\u98982.3\u4e58\u4ee510\u7684-6\u6b21\u65b9\uff1b2\u98982.1\u4e58\u4ee510\u7684-5\u6b21\u65b9\uff1b3\u9898C\uff1b4\u9898\u5316\u7b80\u540e\u539f\u5f0f=a\u5206\u4e4b1\uff0c-3\u5206\u4e4b2\uff1b15.3\u5206\u5f0f\u65b9\u7a0b\u7b2c1\u8bfe\u65f61\u9898x=-3\uff1b2\u9898m\u5927\u4e8e-6\u4e14m\u4e0d\u7b49\u4e8e-4\uff1b3\u9898D\uff1b4\u9898x=3\u5206\u4e4b1\uff0c\u7ecf\u68c0\u9a8cx=3\u5206\u4e4b1\u4e0d\u662f\u539f\u65b9\u7a0b\u7684\u89e3\uff0c\u539f\u65b9\u7a0b\u65e0\u89e3\u30025\u9898x=2\u5206\u4e4b5\uff0c\u7ecf\u68c0\u9a8cx=2\u5206\u4e4b5\u662f\u539f\u65b9\u7a0b\u7684\u89e3\u30026\u9898x=6\uff0c\u7ecf\u68c0\u9a8cx=6\u662f\u539f\u65b9\u7a0b\u7684\u89e3\u30027\u9898\u6839\u5177\u9898\u610f\u53ef\u5f972-x\u5206\u4e4b1-x=3\uff0c\u89e3\u5f97x=2\u5206\u4e4b5\u3002\u7ecf\u68c0\u9a8cx=2\u5206\u4e4b5\u662f\u539f\u65b9\u7a0b\u7684\u89e3\u3002\u7b2c2\u8bfe\u65f61\u9898A\uff1b2\u9898C\uff1b3\u9898A\u8f66\u95f4\u6bcf\u5929\u80fd\u52a0\u5de5384\u4ef6\uff0cB\u8f66\u95f4\u6bcf\u5929\u80fd\u52a0\u5de5320\u4ef6\u30024\u9898\uff081\uff09\u7b2c\u4e00\u6b21\u6bcf\u652f\u94c5\u7b14\u7684\u8fdb\u4ef7\u4e3a4\u5143\u3002\uff082\uff09\u6bcf\u652f\u552e\u4ef7\u81f3\u5c11\u662f6\u5143\u30025\u9898\u5c0f\u4e3d\u6240\u4e58\u6c7d\u8f66\u8fd4\u56de\u65f6\u7684\u5e73\u5747\u901f\u5ea6\u662f75\u5343\u7c73\u6bcf\u65f6\u30026\u9898\u8be5\u5730\u9a7b\u519b\u539f\u6765\u6bcf\u5929\u52a0\u56fa300\u7c73\u30027\u9898\u8bbe\u89c4\u5b9a\u65e5\u671f\u4e3ax\u5929\uff0c\u6839\u636e\u9898\u610f\uff0c\u5f97
x\u5206\u4e4b3+\uff08x+6\uff09=1.\u89e3\u5f97x=6.\u7ecf\u68c0\u9a8cx=6\u662f\u6240\u5217\u5206\u5f0f\u65b9\u7a0b\u7684\u89e3\u3002\u663e\u7136\u65b9\u6848\uff082\uff09\u4e0d\u5408\u9898\u610f\u3002\u65b9\u6848\uff081\uff091.2*6=7.2\uff08\u4e07\u5143\uff09\u65b9\u6848\uff083\uff091.2*3+0.5*6=6.6\uff08\u4e07\u5143\uff09\uff0c\u56e0\u4e3a7.2\uff1e6.6\u6240\u4ee5\u5728\u4e0d\u803d\u8bef\u5de5\u671f\u7684\u524d\u63d0\u4e0b\uff0c\u9009\u7b2c\u4e09\u4e2d\u65bd\u5de5\u65b9\u6848\u6700\u8282\u7701\u3002
一、基础知识：
1.给下列加点字注音。
阻遏（e）仄（ze）歪转弯抹（mo）角（都是第四声）
拂（fu）晓（二声）赃（zang）物(一声) 悠（you）闲(一声）
2.根据拼音写出汉字。
寒jin(噤) 瓦li(砾) 箱qie（箧）
制cai(裁) 荒miu(谬) yao(疟)子
3.C 4.B 5.B
二、1.毛岸英与高参谋为了人民，查找部队方位，最后牺牲在了办公室中
2.身为伟人，能不顾自己性命一心为人民着想很让我感动。
感想：虽然我们做不了什么大事，但我们也可以做些力所能及的事情，去为社会做点贡献。
三、趣味语文：瞒天过海 围魏救赵 偷梁换柱 以逸待劳 趁火打劫 声东击西
10 （1）百十
（2）万
（3）千三
（4）八百五十
第二单元
一、1.xu huang chen chuang jie liao chai tui ling
2.渴悚霹雳藉滞唏嘘躁唁呵斥
3.C 4.D 5.B
二 1.我打喷嚏时.和母亲开玩笑;每当我写作时母亲总看着我.看久了便叫我出去走走.表达了我对母亲的无比思念和爱之情.
2.自述的特点，读完后很感动，感觉母爱很伟大
三 9.1 说出来让大家开心开心
2 在放弃之前放弃努力
四背诵积累
客亲
前后
生死
祸福
第三单元
一 cang zi xiao
zhou xun zhang
榭 镂 帷 凿 壑 伦
B D
二 5.轻捷与潇洒 悲忿而苍凉
是的，因为前者的态度达观向上，值得学习。
6.《中国石拱桥》的语言精炼、准确；本文语言典雅、舒和。
三 8.BCAD
9.陋室 黄鹤楼 岳阳楼 承天寺
第四单元
一 ni xi lan
bo yin yan
咎 绮 藩 褶 衍 翩
A C D
二 6.仿生手
生动形象地写出仿生手的神奇，吸引读者
7.不可以，这个词表示时间范围，若删去，则句子意思变为任何时候都会做脚，与现实不相符合，这个词体现了说明文语言的准确性。
8.列数字 科学准确的说明了我国肢体残疾的人数之多，突出了仿生手的作用之大。
三 10.二三四五
11.（1）落晖（2）落日（3）夕日（4）日暮（5）落日（6）夕阳（7）斜阳
第五单元
一 1. yan xie tiao
yan zhuan du
2. (1)阡陌:田间小路 (2)扶: 沿;顺着
(3)规:计划 (4)津:渡口 (5)属:类
(6)蕃:多 (7)馨:香气,这里指品格高尚
(8)鸿:大 (9)宜:应当 (10)因:顺着、就着
3.B 4.C
二 1、我以前认为：无礼、粗鲁
读了贾平凹先生的《饮者》后，我有了新的认识有礼、可敬可叹可爱是文人
2、凉州词王翰
葡萄美酒夜光杯，欲饮琵琶马上催。
醉卧沙场君莫笑，古来征战几人回？
3、只见那男的左手一瓶白酒右手一瓶红酒,走路摇摇晃晃的,眼珠子在眼眶里不停的打转,嘴还一边说着:"美酒!好喝!好喝...好喝哈哈哈哈!"醉汉的步伐完全 跟不上拍子,"碰"不料,那醉汉一头撞在了树上."哎呀!痛,痛好,痛好...."嘴还不停的说着.突然,他停了下来,笑了笑,手一松,伴着酒瓶的碎声醉汉一头栽在了地上
四田家渝州江南东城
第六单元
1.sù tuān gě qiú xī shù
2.飞奔的马 动词，连接 消散 坠落 只 几乎 用水淋洗 强迫
3.D 4.C 5.B
6.王子猷住在山阴县。有一夜下大雪，他一觉醒来，打开房门，叫家人拿酒来喝。眺望四方，一片皎洁，于是起身徘徊，朗诵左思的《招隐》诗。忽然想起戴安道，当时戴安道住在剡县，他立即连夜坐小船到戴家去。船行了一夜才到，到了戴家门口，没有进去，就原路返回。别人问他什么原因，王子猷说：“我本是趁着一时兴致去的，兴致没有了就回来，为什么一定要见到戴安道呢？”
7.一醒就要酒；眺望四方，一片皎洁，于是起身徘徊，朗诵《招隐》；忽然想起戴安道就立即连夜坐小船前往；到了之后没了兴致就原路返回。
8.王子猷的性格特质是外向独立型，疏阔爽朗，随性而发，他想起朋友，哪怕天黑下雪，他也立刻动身。一路舟车劳顿，身心疲惫，到了目的地戴家门前，兴致没了，他就掉头而回。王子猷看望朋友，是为了满足自己的友谊之乐，兴致没了，自然就不进戴门了，心灵快乐的源泉在于自己，而不在他人处；窦巩、陶渊明等。
9.王子猷：对待朋友比较随意，在朋友看来，他有些以自我为中心。他不喜欢计划性，车到山前必有路，船到桥头自然直，他认为规划是画饼充饥，效果有限，价值不大，只能根据变化随时调整。
张岱：对知心朋友友好、豪爽。
10.甲文：描写雪景一片皎洁。是王子猷连夜坐小船前往戴家的起因，为后文乘小船连夜前往辛苦而失去兴致做铺垫。
乙文：天人合一，世俗之外。反衬出人的渺小，大自然的伟大。
11.元旦春节元宵儿童
12.雁雁雁燕燕
数学：
1.C 2.D 3.十三分之六十4.13 5.连接BD 36c㎡ 6.C
1.C 2.B 3.A 4.130 5.24
1.D 2.C 3.±根号五 4.2倍根号2 5.0 三、1.2倍根号2 2.根号三 3.14+4倍根号3 4.6
1.A 2.B 3.7.5 4.60°
P22平移与旋转
一：AB
二：7.5 60
P23
6.（2）解：∵正△ABC
∴AB=BC
又∵△ABD由△ABC旋转
∴△ABD≌△ABC
∴AB=BC=AD=DC
∴四边形ABCD为菱形
P25
1. A
2. C
3. 12
4. 2＜a＜10
5. 4倍根号二＋2；根号二＋1
6. 在◇ABCD中
AB‖CD
AC平分∠BAD
∴∠BAC=60°÷2=30°
∵CE⊥AC
∴∠ACE=90°
∴∠E=90°-30°=60°
∴∠BAD=∠E
∵AB‖CD
AD不‖CE
∴四边形ADCE是梯形
又∵∠BAD=∠E
∴四边形ADCE是等腰梯形
7. 画平行四边形对角线的交点O，点O和圆心所在的直线即为所画
P33
1.C 2.B 3.A
4. 66 5. 28
6. 75×10-80×9=30分
P21
1.D 2.B
3. 正负根号5
4. 2倍根号4
5. 1
6. 2倍根号2
根号3
8
6
P30
1 A
2 B
3 B
4 C
5. 0/0
6 （3,2）
7 拉伸
8 4
31页 DBC
32页 BC 2 未知数 -2 3
33页 DBA 18 24.5
34页 CDAB 60°
35页 ADB 50°
36页大于六
175楼
P31
1 D 2 B 3 C
4 X=0.5 Y=-1
X=-3 Y=0
5 X=800 Y=500
P27.
1.A 2.B 3.A
4.
5. 7
6.(1) A(1,4) B(-2,3) C(-3,0) D(3，0)
(2) S四边形ABCD=（1×3÷2）×2+4+3×3
=3+4+9
=16
p26
1. B
2. D
3. B
4. 4
5. 3
6. 5
7. 8
8. 25；根号二百三十一；13；17倍根号二百三十一
9. （1）3 （2）0 （3）12-2倍根号六（4）-14倍根号二
P28
1 D
2 A
3 A
4 1.5.6
2.3
5（1.5,0）（0，-3）增大
7 （2） X：（-1.5,0）
Y：（0,2）
（3） 2.5
（4）1.5
（5）X为负数时 Y大于0 X为整数或0时， Y小于0
一次函数（1）
1.2.3.DAC
4.(1)(2)(5)(6) (2)
5.（3分之2，0）（-3,0）增大面积不知道对不对
6.（0,6）
一次函数（2）
1.2.AD
3.-3
4.一二四象限
5.Y=2X+b
6.甲。2m(乱写的）
7.（1）10元
（2）1.2元每千克
（3）50千克
P27
1. C
2. B
3. A
4. 北偏西50°的500米处
5. 7
6.(1) A(1,4)
B(-2,3)
C(-3,0)
D(3,0)
(2)8
P29
1 A
2 D
3 -3
4 1.2.3
5 Y=2x+6
6 甲跑的快
1.5秒/米
7 10元
1.2元/千克
50千克
科学：
P53 ACBD 增大 100% 降水
P55 压力不变时，受力面积减小，压强增大。 BBCCBD 受力面积压强 490 增大水的密度不变时，越深，水内部压强越大P571.B 2.A A 暖 40 高压冷锋晴朗干燥甲乙 A
P59-60 1-4 BBAD 三.难溶乳浊水资源污染、海洋生物大量死亡
P61 BBCCD
P62 四、糖尿病饮食包括主食：如粳米、富强粉；含热能低的食物如：青菜、白菜、黄瓜、冬瓜、番茄、豆腐、黄豆芽等；还有少量的瘦猪肉、鸡蛋。糖尿病的病人禁食葡萄糖、蔗糖、麦芽糖等纯糖食品
P63-64 CCDB 非条件反射无关条件睫状肌脊髓大脑皮层小脑
P65 BD
P661.①水果导电性与它的酸性有关②水果导电性与它本身的质量无关 2. 乙避雷针躲入建筑物内或就地蹲下
英语
happy1
一
what a melody(悦耳) song it is!
what a fast boy he is !
what a heavy girl she is !
what a beautiful school it is !
what a good boy he is !
what a beatific(幸福) boy he is!
二
is cleaned
were taken
is maken
was showed
are inviten
wasn't gave
was slolen ; was found
三
turtle
tiger
japan
Mexico
tiger
sierra leone
P39.一：
better best havier heaviset
more most older oldest
bigger biggest more expensive most expensive
more smart most smart better known best known
more badly most badly less leas
more carefully most carefully fewer fewest
more slowy most slowy thinner thinnest
more healthy most healthy more easily most easily
hotter hoyyest oftener oftenest
farer farest larger largest
p43
动词 过去式 过去分词
be was been
cook cooked cooked
know knew known
swim swan swam
get got got
teach tought taught
leave left left
fell felt felt
smell smelt smelt
drive drove driven
run ran run
think thought thought
keep kept kept
buy bought bought
begin began began
do did done
cost cost cost
find found found
throw threw throw
stand stood stood
speak spoke spoken
come came come
give gave given
hear heard heard
send sent sent
hurt hurt hurt
see saw seen
steal stole stolen
take took taken
sleep slept slept
sit sat sat
meet met met
bring brought brought
fly flew flown
wake woke waken
choose chose chosen
lose lost lost
read read read
rise rose risen
wear wore worn
P40一：
plan to do 计划做某事 He planned on taking his vacation in July.
hope to do 希望做某事 We hope to see you soon.
agree to do 同意做某事 No results found for agree to do.
refuse to do 拒绝做某事 She asked him for a loan, but he refused.
finish doing 完成某事（后面就不打某事..到时记得自己加上哈）Have you finished reading that magazine?
enjoy dong 擅长....I enjoyed reading these books very much.
practise doing 练习...I practise my swing.
suggest doing 建议..I suggest our going to the park on Sunday
admit doing.承认... I admitted breaking the window.
deny doing否认...He denied having seen these watches before.
arrange for 安排...I’ve arranged for a taxi.
offer to do 提供They offered to help me
like/love+doing喜欢.. She likes playing the piano
hate to do 遗憾...He hated to have quarrelled with her.
hate to do 讨厌 He hated to have quarrelled with her.
remember to do 记住去做某事 Do you remember her telephone number?
remember doing 记得做过某事 I remember telling you about it once.
forget to do 忘记去做某事 I forgot posting the letter.
forget doing 忘记做过某事 Don't forget to post the letter.
P50
Early to bed
Get up early to exercise every day
To eat less fatty food and more milk.
Do not eat too many sweet can cause obesity.
In the case of hot weather drink plenty of water.
Can not drink beverages,drink plenty of water.
In the winter changes according to the right to add their own clothes to not cath a cold
The eyes will not watch TV much,so choose the appropriate time watching TV.
Playing games in not good for mental and physical,we need to less play.
经过一番努力
45页，
I feel interested because i have a dog
I feel relaxed because i finished my homework
I feel pleased because i will go to travel
I feel bored because i losed my phone
I feel worried because i losed my phone
I feel annoied because someone stole my wallet
I feel frighten because i am alone at home
I feel disappoint because i lost the game
左边
2.before you travel,you need to take enough money
3、... .(一样）. ,you need to check local material
4....... .... ,you need to bring clothes
右边
2.you need the local language
3.at the airport,remember not to look around
46页
英语书第二页的B1部分，按照顺序抄
英语P51. 二
use
early
lives
idea
be
himself
built
worked
hoped
until
P49-50 （二）
only
During
energy
more
boys
Drinking
Exercising /Exercise
least
relaxed
pay
P49 （一）
1. use shopping bags
2. throw rubbish
3. ride bikes
4. save water
5. plant trees
P41 （二）
interested
exciteing
relaxing
bore
worrying
pleased
P47
一： Liquid solid gas
↙↘ ↙↘ ↙ ↘
rain water ice hail water vapor fog
二：
The earth
The universe
P48
shadow can change according to the sun.
In the morning and at nightfall,it is long.
In the middle of the day,it is short and dack.
How interesting my shadow is.
P44
1. Water is the surce of life, without food,we can live for several weeks, but there's no water ,we a few days later would die dehdration. We body more than two thirds of the part is water.
2. Don't stay qpen , and left to turn off the tap. Wash your hands with water to boil small points. Face and brush your teeth to avoid using washbasin and caps.
P44
1.Why is.....
Water who is the fountain of life. No food, we can live several weeks, but no water, we die, we body two-thirds is water。
P44
1.Why is.....
Water who is the fountain of life. No food, we can live several weeks, but no water, we die, we body two-thirds is water。
2.How to .....
Don't stay open faucet, people walk away to remember to turn off the tap. Wash your hands with water, try to open a small dot, face and brush your teeth can use basin.
P44
1.
Water who is the fountain of life. No food, we can live several weeks, but no water, we die, we body two-thirds is water。
2.
Don't stay open faucet, people walk away to remember to turn off the tap. Wash your hands with water, try to open a small dot, face and brush your teeth can use basin.
P44
1.Why is.....
Water who is the fountain of life. No food, we can live several weeks, but no water, we die, we body two-thirds is water。
2.How to .....
Don't stay open faucet, people walk away to remember to turn off the tap. Wash your hands with water, try to open a small dot, face and brush your teeth can use basin.
3.How to protect...
Have good habit, conveniently closed without faucet, don't litter and reduce factory sewage disposal.
P44
1.Why is.....
Water who is the fountain of life. No food, we can live several weeks, but no water, we die, we body two-thirds is water。
2.How to .....
Don't stay open faucet, people walk away to remember to turn off the tap. Wash your hands with water, try to open a small dot, face and brush your teeth can use basin.
3.How to protect...
Have good habit, conveniently closed without faucet, don't litter and reduce factory sewage disposal.
历史 P73
（2）
尼罗河定期泛滥--发达的农业---村落的形成---手工业....----尼罗河两岸的小国....---初步统一的古埃及国家----地跨...
历史P74：
二.1.
（1）图一，古埃及--象形文字，金字塔，太阳历
（2）图二，古印度---佛教，阿拉伯数字
（3）图三：古巴比伦 --楔形文字，空中花园，几何学，太阴历
2.乔达摩•悉达多
佛教是三大佛教最早创立的，宣扬“众生平等”公元前后，传入中国
3.
<汉莫拉比法典>
反映奴隶主拥有至高无上的地位
历史P75
2.
1.
图一象形文字
图二楔形文字
图三甲骨文
2.
生活中动物的形状、自然现象
3.
说明人类走向了文明
3.尼罗河 BC3500
两河 BC3500
印度河恒河 BC2500
长江、黄河 BC2070
（2）促进农作物生长、土地肥沃、适合人类居住
历史P77：
2.穆--麦---信
耶--巴--忍
释-古印-佛...
3.
基督
佛
伊斯兰
4.
（1）石制柱廓
（2）都是拱劵式结构
历史P81
筒车、清明上河图、交子、金刚经
3.书上127页
（2）战国、三国、元朝、清朝
4.儒家-孔子
道—老
墨家—墨子
法家-韩
兵家—孙子
筒车—唐
秧—宋
丝绸之路—汉
大运河—隋
灵渠—秦朝
（2）
文—汉文帝
贞观---唐太宗
开元盛世—唐玄宗
光武中兴—光武帝
辽—契丹
西夏—党项
金---女真
元—蒙古
（3）
礼乐—周朝
郡县----秦朝
三省六部 –隋
行省—元
历史P83
(1)两宋时期
三国两晋南北朝
五代十国
（2）秦朝---嬴政
隋朝--杨坚
元朝--铁木真
2.
①张骞，大月氏，联络大月氏，共同夹击匈奴
历史P84：
长安，两次
运送货物，贸易往来
（2）
玄奘、印度（天竺）、求取佛经精义
P85
鉴真、六次
医药、建筑、雕塑、绘画
不知道对不对
最好不要让我知道你是我班上的..
我是七年级的
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