小学三年级科学上册单元测试题及答案 全册 小学三年级科学上册练习题答案
3\u5e74\u7ea7\u79d1\u5b66\u4e0a\u518c\u5355\u5143\u6d4b\u8bd5\u5e26\u7b54\u6848\u4e09\u5e74\u7ea7\u79d1\u5b66\u4e0a\u518c\u7b2c\u4e00\u5355\u5143\u6d4b\u8bd5\u9898\u4e00\u3001\u586b\u7a7a
1\uff0e \u50cf\u6a1f\u6811\u8fd9\u6837\u7684\u690d\u7269\u53eb\uff08 \uff09\u690d\u7269,\u5b83\u7684\u830e\u53eb\uff08 \uff09.
2\uff0e \u50cf\u72d7\u5c3e\u5df4\u8349\u8fd9\u6837\u7684\u690d\u7269\u53eb\uff08 \uff09\u690d\u7269,\u5b83\u7684\u830e\u53eb\uff08 \uff09.
3\uff0e \u9646\u5730\u4e0a\u751f\u957f\u7684\u690d\u7269\u53eb\uff08 \uff09\u690d\u7269,\u6c34\u4e2d\u751f\u957f\u7684\u690d\u7269\u53eb\uff08 \uff09.
4\uff0e \u53f6\u662f\u7531\uff08 \uff09\u548c\uff08 \uff09\u4e24\u90e8\u5206\u7ed3\u6210.
5\uff0e \u690d\u7269\u7684\u751f\u957f\u4e00\u822c\u8981\u7ecf\u8fc7\uff08 \uff09\u3001\uff08 \uff09\u3001\uff08 \uff09\u3001\uff08
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1\u3001 \u5e26\u7740\u76ee\u7684\u53bb\u89c2\u5bdf\u5927\u6811,\u624d\u80fd\u53d1\u73b0\u66f4\u591a.\uff08 \uff09
2\u3001 \u5927\u6811\u548c\u5c0f\u8349\u7684\u830e\u90fd\u4e00\u6837\u575a\u786c.\uff08 \uff09
3\u3001 \u8f66\u524d\u8349\u548c\u6c34\u82b1\u751f\u90fd\u662f\u6c34\u751f\u690d\u7269.\uff08 \uff09
4\u3001 \u6d6e\u840d\u4e0d\u9700\u8981\u571f\u58e4\u4e5f\u80fd\u751f\u957f.\uff08 \uff09
5\u3001 \u6625\u5929\u662f\u6811\u6728\u843d\u53f6\u7684\u5b63\u8282.\uff08 \uff09
6\u3001 \u65b0\u9c9c\u7684\u6811\u53f6\u662f\u9ec4\u8272\u7684.\uff08 \uff09
7\u3001 \u83ca\u82b1\u4e00\u822c\u5728\u79cb\u5929\u624d\u5f00\u82b1.\uff08 \uff09
8\u3001 \u6709\u7684\u6811\u751f\u957f\u65f6\u95f4\u957f,\u6c38\u8fdc\u90fd\u4e0d\u4f1a\u67af\u6b7b.\uff08 \uff09
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1\u3001\u4e00\u4e9b\u5927\u6811\u770b\u4e0d\u5230\u5b83\u7684\u6839,\u5b83\u5e94\u8be5\uff08 \uff09\u6839.
A\u3001\u6709 B\u3001\u6ca1\u6709
2\u3001\u84b2\u516c\u82f1\u5c5e\u4e8e\uff08 \uff09
A\u3001\u6728\u672c\u690d\u7269 B\u3001\u8349\u672c\u690d\u7269
3\u3001\u4e0d\u5c5e\u4e8e\u9646\u751f\u690d\u7269\u7684\u662f\uff08 \uff09.
A\u3001\u7389\u7c73 B\u6c34\u846b\u82a6 C\u3001\u72d7\u5c3e\u8349
4\u3001\u690d\u7269\u7684\u53f6\u662f\uff08 \uff09.
A\u3001\u6709\u751f\u547d\u7684 B\u3001\u65e0\u751f\u547d\u7684
5\u3001\u6811\u53f6\u53d8\u9ec4\u7684\u5b63\u8282\u662f\uff08 \uff09.
A\u3001\u6625\u5929 B\u3001\u590f\u5929 C\u3001\u79cb\u5929 D\u3001\u51ac\u5929
6\u3001\u9646\u751f\u690d\u7269\u7684\u751f\u957f\uff08 \uff09\u6c34\u4efd.
A\u3001\u9700\u8981 B\u3001\u4e0d\u9700\u8981
7\u3001\u53d8\u786c\u7684\u6811\u53f6\u4e00\u822c\u662f\uff08 \uff09.
A\u3001\u7eff\u8272\u7684 B\u3001\u67af\u9ec4\u7684
\u56db\u3001\u6211\u7684\u7814\u7a76.\uff08\u6bcf\u5c0f\u98985\u5206,\u517115\u5206\uff09
1\u3001\u690d\u7269\u9700\u8981\u54ea\u4e9b\u6761\u4ef6\u624d\u80fd\u6b63\u5e38\u751f\u957f?
2\u3001\u690d\u7269\u6709\u4ec0\u4e48\u5171\u540c\u7684\u7279\u70b9?
3\u3001\u628a\u4f60\u89c2\u5bdf\u7684\u4e00\u68f5\u5927\u6811\u7684\u5185\u5bb9\u8bb0\u5f55\u4e0b\u6765.
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\u4e00\u3001\u586b\u7a7a.
1\uff0e\u8717\u725b\u7684\u80cc\u4e0a\u6709\u4e00\u4e2a\uff08 \uff09,\u8eab\u4f53\u8f6f\u8f6f\u7684,\u5934\u4e0a\u6709\uff08 \uff09\u5bf9\u89e6\u89d2,\u7528\uff08 \uff09\u722c\u884c.
2\uff0e\u86af\u8693\u4e00\u822c\u751f\u6d3b\u5728\uff08 \uff09\u3001\uff08 \uff09\u7b49\u571f\u58e4\u4e2d,\u5b83\u4e0e\u8717\u725b\u4e00\u6837\u559c\u6b22\uff08 \uff09\u3001\uff08 \uff09\u7684\u73af\u5883.
3\uff0e\u86af\u8693\u7684\u8eab\u4f53\u662f\u7531\uff08 \uff09\u3001\uff08 \uff09\u3001\uff08 \uff09\u4e09\u90e8\u5206\u7ec4\u6210.
4\uff0e\u91d1\u9c7c\u7684\u5168\u8eab\u90fd\u957f\u6709\uff08 \uff09,\u7528\uff08 \uff09\u5212\u6c34,\u7528\uff08 \uff09\u547c\u5438.
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\uff08 \uff094\u3001\u86af\u8693\u559c\u6b22\u751f\u6d3b\u5728\u6f6e\u6e7f\u7684\u73af\u5883\u91cc,\u56e0\u6b64\u6211\u4eec\u53ef\u4ee5\u628a\u5b83\u653e\u5728\u6c34\u4e2d\u751f\u6d3b.
\uff08 \uff095\u3001\u8717\u725b\u53ef\u4ee5\u5728\u73bb\u7483\u4e0a\u722c\u884c.
\uff08 \uff096\u3001\u8682\u8681\u548c\u8717\u725b\u6ca1\u6709\u4efb\u4f55\u76f8\u540c\u7684\u5730\u65b9.
\uff08 \uff097\u3001\u91d1\u9c7c\u7528\u9ccd\u6e38\u6cf3,\u7528\u9cc3\u547c\u5438.
\uff08 \uff098\u3001\u8717\u725b\u4f11\u7720\u4e86,\u6211\u4eec\u53ef\u4ee5\u4f7f\u52b2\u6572\u6253\u5b83\u7684\u5916\u58f3\u4f7f\u5b83\u6d3b\u52a8\u8d77\u6765.
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1\u3001\u50cf\u6a1f\u6811\u8fd9\u6837\u830e\u6bd4\u8f83\u786c\u7684\u690d\u7269\u53eb\u505a \u6728\u672c \u690d\u7269\uff0c\u56e0\u4e3a\u5b83\u957f\u5728\u9646\u5730\u4e0a\uff0c\u6240\u4ee5\u53c8\u53eb\u505a \u9646\u751f \u690d\u7269\uff1b\u50cf\u91d1\u9c7c\u85fb\u8fd9\u6837\u830e\u6bd4\u8f83\u8f6f\u7684\u690d\u7269\u53eb\u505a \u8349\u672c \u690d\u7269\uff0c\u56e0\u4e3a\u5b83\u957f\u5728\u6c34\u91cc\uff0c\u6240\u4ee5\u53c8\u53eb\u505a \u6c34\u751f \u690d\u7269\u3002
2\u3001\u4e00\u7247\u5b8c\u6574\u7684\u690d\u7269\u7684\u53f6\u7531 \u53f6\u7247 \u548c \u53f6\u67c4 \u7ec4\u6210\u3002 (\u53f6\u8109\u957f\u5728\u53f6\u7247\u4e0a\uff09
3\u3001\u8717\u725b\u7684\u80cc\u4e0a\u6709\u4e00\u4e2a \u58f3 \uff0c\u8eab\u4f53\u8f6f\u8f6f\u7684\uff0c\u5934\u4e0a\u6709 \u4e24 \u5bf9\u89e6\u89d2\uff0c\u7528 \u8179\u8db3 \u722c\u884c\u3002
4\u3001\u8682\u8681\u7684\u8eab\u4f53\u5206\u4e3a \u5934 \u3001 \u80f8 \u3001 \u8179 \u4e09\u90e8\u5206\uff0c \u80f8 \u90e8\u957f\u6709 \u516d \u53ea\u811a\u3002
5\u3001\u91d1\u9c7c\u7684\u5168\u8eab\u957f\u6709 \u9c7c\u9cde \uff0c\u7528 \u9c7c\u9ccd \u5212\u6c34\uff0c\u7528 \u9c7c\u9cc3 \u547c\u5438\u3002
\u4e8c\u3001\u6211\u4f1a\u9009\u62e9\uff08\u5355\u9879\u9009\u62e9\uff09
1\u3001\u89c2\u5bdf\u5927\u6811\u5e94\u8be5\u6309\uff08 C \uff09\u987a\u5e8f\u8fdb\u884c\u3002
A\u3001\u4ece\u6574\u4f53\u5230\u5c40\u90e8\uff0c\u4ece\u91cc\u5230\u5916
B\u3001\u4ece\u5c40\u90e8\u5230\u6574\u4f53\uff0c\u4ece\u8fdc\u5230\u8fd1
C\u3001\u4ece\u6574\u4f53\u5230\u5c40\u90e8\uff0c\u4ece\u8fdc\u5230\u8fd1
2\u3001\u4e0b\u5217\u690d\u7269\u5c5e\u4e8e\u6c34\u751f\u690d\u7269\u7684\u662f\uff08 C \uff09\uff0c\u5c5e\u4e8e\u6728\u672c\u690d\u7269\u7684\u662f\uff08 A \uff09\u3002
A\u3001 \u67f3\u6811 B\u3001\u72d7\u5c3e\u8349 C\u3001\u6c34\u846b\u82a6
3\u3001\u5728\u89c2\u5bdf\u6d3b\u52a8\u65f6\uff0c\u4e0b\u5217\u505a\u6cd5\u9519\u8bef\u7684\u662f\uff08 B \uff09\u3002
A\u3001\u4fdd\u6301\u5c0f\u52a8\u7269\u7684\u751f\u5b58\u73af\u5883\uff0c\u4e0d\u6253\u6270\u5b83\u4eec
B\u3001\u89c2\u5bdf\u8fc7\u7684\u5c0f\u52a8\u7269\u968f\u4fbf\u653e\u5728\u8def\u8fb9\u5c31\u884c\u4e86
C\u3001\u7231\u62a4\u5c0f\u52a8\u7269\uff0c\u4e0d\u4f24\u5bb3\u5b83\u4eec
4\u3001\u79cb\u5929\uff0c\u6211\u4eec\u53ef\u4ee5\u89c2\u5bdf\u5230\u690d\u7269\u7684\u53d8\u5316\u6709\uff08 A \uff09\u3002
A\u3001\u72d7\u5c3e\u5df4\u8349\u67af\u9ec4\u4e86 B\u3001\u67f3\u6811\u53d1\u82bd\u4e86 C\u3001\u6811\u53f6\u53d8\u5730\u66f4\u7eff\u4e86
5\u3001\u8717\u725b\u722c\u8fc7\u7684\u5730\u65b9\u4f1a\u7559\u4e0b\uff08 A \uff09\u3002
A\uff0e\u7c98\u6db2 B\uff0e\u811a\u5370
6\u3001\u8717\u725b\u901a\u5e38\u5728\u591c\u95f4\u6d3b\u52a8\uff0c\u7ed9\u8717\u725b\u5582\u98df\u7684\u65f6\u95f4\u4e00\u822c\u662f\uff08 C \uff09\u3002
A\u3001\u65e9\u4e0a B\u3001\u4e2d\u5348 C\u3001\u508d\u665a
7\u3001\u8682\u8681\u4e0d\u4f1a\u628a\u7a9d\u5efa\u5728 \uff08 C \uff09 \u3002
A\u3001\u6811\u4e0a B\u3001\u6ce5\u571f\u4e2d C\u3001\u6c34\u4e2d
8\u3001\u8682\u8681\u662f\u7528\uff08 A \uff09\u6765\u4ea4\u6d41\u4fe1\u606f\u7684\u3002
A\u3001\u5934\u4e0a\u7684\u89e6\u89d2 B\u3001\u58f0\u97f3 C\u3001\u821e\u8e48
9\u3001\u4e0b\u5217\u5173\u4e8e\u53f6\u5b50\u7684\u63cf\u8ff0\u6b63\u786e\u7684\u662f\uff08 A \uff09 \u3002
A\u3001\u53f6\u7247\u4e0a\u6709\u53f6\u8109
B\u3001\u843d\u53f6\u662f\u6ca1\u6709\u53f6\u67c4\u7684
C\u3001\u53f6\u5b50\u7684\u5f62\u72b6\u90fd\u662f\u4e00\u6837\u7684
\u4e09\u3001\u6211\u4f1a\u5224\u65ad
1\u3001\uff08 \u221a \uff09\u8717\u725b\u7684\u4e24\u5bf9\u89e6\u89d2\u4e00\u5bf9\u957f\u4e00\u5bf9\u77ed\uff0c\u5c0f\u773c\u775b\u957f\u5728\u5b83\u7684\u4e00\u5bf9\u957f\u89e6\u89d2\u4e0a\u3002
2\u3001\uff08 \u00d7 \uff09\u72d7\u5c3e\u8349\u7684\u53f6\u5b50\u50cf\u9e21\u86cb\uff0c\u662f\u5375\u5f62\u7684\u3002
3\u3001\uff08 \u221a \uff09\u6811\u6728\u548c\u6211\u4eec\u4eba\u4e00\u6837\u6709\u751f\u547d\uff0c\u6211\u4eec\u8981\u7231\u62a4\u6811\u6728\u3002
4\u3001\uff08 \u00d7 \uff09\u91d1\u9c7c\u6e38\u6cf3\u65f6\u4e0d\u65ad\u5730\u5f20\u5634\uff0c\u662f\u56e0\u4e3a\u5b83\u5728\u4e0d\u65ad\u5730\u559d\u6c34\u3002
5\u3001\uff08 \u00d7 \uff09\u65b0\u9c9c\u7684\u53f6\u4e0e\u843d\u53f6\u76f8\u6bd4\uff0c\u9664\u4e86\u989c\u8272\u4e0d\u540c\uff0c\u5176\u4ed6\u90fd\u76f8\u540c\u3002
6\u3001\uff08 \u00d7 \uff09\u86af\u8693\u559c\u6b22\u5728\u6c34\u91cc\u751f\u6d3b\u3002
7\u3001\uff08 \u00d7 \uff09\u690d\u7269\u4e0d\u80fd\u8fd0\u52a8\uff0c\u6240\u4ee5\u5b83\u4eec\u662f\u6ca1\u6709\u751f\u547d\u7684\u3002
8\u3001\uff08 \u00d7 \uff09\u8682\u8681\u627e\u5230\u4e86\u98df\u7269\u4f1a\u9a6c\u4e0a\u628a\u5b83\u5403\u6389\u3002
9\u3001\uff08 \u00d7 \uff09\u9646\u751f\u690d\u7269\u957f\u5728\u9646\u5730\u4e0a\uff0c\u6240\u4ee5\u5b83\u4eec\u7684\u751f\u957f\u4e0d\u9700\u8981\u6c34\u5206\u3002
10\u3001\uff08 \u221a \uff09\u4e0d\u540c\u7684\u73af\u5883\u751f\u957f\u7740\u4e0d\u540c\u7684\u52a8\u7269\u3002
\u4e94\u3001\u6211\u4f1a\u586b\u5199
1\u3001\u8bf7\u4ece\u4e0b\u9762\u9009\u53d6\u76f8\u5e94\u7684\u5e8f\u53f7\uff0c\u586b\u5199\u5728\u8717\u725b\u548c\u86af\u8693\u7684\u7ef4\u6069\u56fe\u4e2d\u3002
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绛旓細灏忓涓夊勾绾鏁板涓婂唽绗竴鍗曞厓鏁欏锛屽皬瀛︿笁骞寸骇鏁板涓婂唽绗竴鍗曞厓娴嬭瘯棰寰堝浜鸿繕涓嶇煡閬擄紝鐜板湪璁╂垜浠竴璧锋潵鐪嬬湅鍚э紒涓銆佸彛绠(8鍒)400+700= 200+800= 120-40= 35梅7= 3000+6000= 3脳7= 2600-1000= 5000-4000= 70-15= 48梅8= 2500+1000= 40梅5= 45梅5= 40+90= 21梅3= 4脳6= 44-29= ...
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