第二單元地球的運動（復(fù)習(xí)課件）六年級科學(xué)上學(xué)期期中復(fù)習(xí)（教科版）

地球的運動第二單元教科版《科學(xué)》·六年級上冊01知識概覽02考點梳理{"pageIdForCopy":"0175210fa805549044953685","elesJsonForCopy":"[{\"data-type\":\"img\",\"eleid\":\"ele1726298127281_9366_2\",\"data-img-kind\":\"image/png\",\"data-elem\":{\"id\":2242911504,\"width\":243,\"height\":241,\{"pageIdForCopy":"0175210fa805549044953685","elesJsonForCopy":"[{\"data-type\":\"img\",\"eleid\":\"ele1726298127281_9366_2\",\"data-img-kind\":\"image/png\",\"data-elem\":{\"id\":2242911504,\"width\":243,\"height\":241,\"imgWidth\":243,\"imgHeight\":241,\"opacity\":1,\"viewBox\":\"00243241\",\"shadow\":{\"rotate\":315,\"color\":{\"r\":0,\"g\":0,\"b\":0},\"blur\":6,\"offset\":15,\"opacity\":0.3,\"show\":false},\"lock\":false,\"filter\":{\"brightness\":0,\"contrast\":0,\"crossProcess\":0,\"gaussianBlur\":0,\"saturation\":0,\"tint\":0},\"isCut\":false,\"dataImgUrl\":false,\"colorful\":{\"default\":\"\",\"overlay\":{\"r\":-1,\"g\":-1,\"b\":-1,\"a\":0},\"adjust\":{\"brightness\":0,\"contrast\":0,\"crossProcess\":0,\"gaussianBlur\":0,\"saturation\":0,\"tint\":0}},\"horizontalScale\":1,\"verticalScale\":1,\"data-key\":\"\",\"oldId\":2242910693,\"source\":0,\"isMated\":true,\"modifiedType\":1},\"reverse\":\"\",\"transform\":\"translate(0,0)rotate(0,121.5,120.5)\",\"animationInfo\":null}]","groupsJsonForCopy":"[]","editorPostionForCopy":"{\"top\":63.39965620639473,\"left\":139.82039022766523,\"right\":382.82039022766526,\"bottom\":304.3996562063947,\"width\":243.00000000000003,\"height\":241}","designKindIdForCopy":127}"imgWidth\":243,\"imgHeight\":241,\"opacity\":1,\"viewBox\":\"00243241\",\"shadow\":{\"rotate\":315,\"color\":{\"r\":0,\"g\":0,\"b\":0},\"blur\":6,\"offset\":15,\"opacity\":0.3,\"show\":false},\"lock\":false,\"filter\":{\"brightness\":0,\"contrast\":0,\"crossProcess\":0,\"gaussianBlur\":0,\"saturation\":0,\"tint\":0},\"isCut\":false,\"dataImgUrl\":false,\"colorful\":{\"default\":\"\",\"overlay\":{\"r\":-1,\"g\":-1,\"b\":-1,\"a\":0},\"adjust\":{\"brightness\":0,\"contrast\":0,\"crossProcess\":0,\"gaussianBlur\":0,\"saturation\":0,\"tint\":0}},\"horizontalScale\":1,\"verticalScale\":1,\"data-key\":\"\",\"oldId\":2242910693,\"source\":0,\"isMated\":true,\"modifiedType\":1},\"reverse\":\"\",\"transform\":\"translate(0,0)rotate(0,121.5,120.5)\",\"animationInfo\":null}]","groupsJsonForCopy":"[]","editorPostionForCopy":"{\"top\":63.39965620639473,\"left\":139.82039022766523,\"right\":382.82039022766526,\"bottom\":304.3996562063947,\"width\":243.00000000000003,\"height\":241}","designKindIdForCopy":127}我們的地球模型地球的內(nèi)部結(jié)構(gòu)由地核、地幔、地殼組成。地球表面主要由海洋和陸地構(gòu)成。地球模型：①地球結(jié)構(gòu)模型；②地球海陸分布模型；③地球自轉(zhuǎn)模型。不同的模型表達的地球知識是不同的，選擇的材料、制作方法都是不同的，適用的范圍也是不同的，但不同的模型都有著地球的基本特征——是一個球體。{"pageIdForCopy":"0175210fa805549044953685","elesJsonForCopy":"[{\"data-type\":\"img\",\"eleid\":\"ele1726298127281_9366_2\",\"data-img-kind\":\"image/png\",\"data-elem\":{\"id\":2242911504,\"width\":243,\"height\":241,\{"pageIdForCopy":"0175210fa805549044953685","elesJsonForCopy":"[{\"data-type\":\"img\",\"eleid\":\"ele1726298127281_9366_2\",\"data-img-kind\":\"image/png\",\"data-elem\":{\"id\":2242911504,\"width\":243,\"height\":241,\"imgWidth\":243,\"imgHeight\":241,\"opacity\":1,\"viewBox\":\"00243241\",\"shadow\":{\"rotate\":315,\"color\":{\"r\":0,\"g\":0,\"b\":0},\"blur\":6,\"offset\":15,\"opacity\":0.3,\"show\":false},\"lock\":false,\"filter\":{\"brightness\":0,\"contrast\":0,\"crossProcess\":0,\"gaussianBlur\":0,\"saturation\":0,\"tint\":0},\"isCut\":false,\"dataImgUrl\":false,\"colorful\":{\"default\":\"\",\"overlay\":{\"r\":-1,\"g\":-1,\"b\":-1,\"a\":0},\"adjust\":{\"brightness\":0,\"contrast\":0,\"crossProcess\":0,\"gaussianBlur\":0,\"saturation\":0,\"tint\":0}},\"horizontalScale\":1,\"verticalScale\":1,\"data-key\":\"\",\"oldId\":2242910693,\"source\":0,\"isMated\":true,\"modifiedType\":1},\"reverse\":\"\",\"transform\":\"translate(0,0)rotate(0,121.5,120.5)\",\"animationInfo\":null}]","groupsJsonForCopy":"[]","editorPostionForCopy":"{\"top\":63.39965620639473,\"left\":139.82039022766523,\"right\":382.82039022766526,\"bottom\":304.3996562063947,\"width\":243.00000000000003,\"height\":241}","designKindIdForCopy":127}"imgWidth\":243,\"imgHeight\":241,\"opacity\":1,\"viewBox\":\"00243241\",\"shadow\":{\"rotate\":315,\"color\":{\"r\":0,\"g\":0,\"b\":0},\"blur\":6,\"offset\":15,\"opacity\":0.3,\"show\":false},\"lock\":false,\"filter\":{\"brightness\":0,\"contrast\":0,\"crossProcess\":0,\"gaussianBlur\":0,\"saturation\":0,\"tint\":0},\"isCut\":false,\"dataImgUrl\":false,\"colorful\":{\"default\":\"\",\"overlay\":{\"r\":-1,\"g\":-1,\"b\":-1,\"a\":0},\"adjust\":{\"brightness\":0,\"contrast\":0,\"crossProcess\":0,\"gaussianBlur\":0,\"saturation\":0,\"tint\":0}},\"horizontalScale\":1,\"verticalScale\":1,\"data-key\":\"\",\"oldId\":2242910693,\"source\":0,\"isMated\":true,\"modifiedType\":1},\"reverse\":\"\",\"transform\":\"translate(0,0)rotate(0,121.5,120.5)\",\"animationInfo\":null}]","groupsJsonForCopy":"[]","editorPostionForCopy":"{\"top\":63.39965620639473,\"left\":139.820390227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）。A.從地球結(jié)構(gòu)模型中可以看出，從外到內(nèi)的結(jié)構(gòu)分別是地核、地幔和地殼。B.從海陸分布模型中可以看出，海洋的面積比陸地的面積大得多C.從地球自轉(zhuǎn)模型中可以看出，地球自轉(zhuǎn)方向是自西向東答案：A解析：地球內(nèi)部結(jié)構(gòu)“從內(nèi)到外”才是地核、地幔和地殼。例題2如果地球自轉(zhuǎn)方向是從東到西，可能引發(fā)的現(xiàn)象是（

）。A.各地不再有晝夜交替B.太陽從西邊升起C.四季更替的順序變?yōu)槎那锎篋.冬熱夏冷答案：B解析：地球自轉(zhuǎn)，晝夜交替產(chǎn)生。地球自西向東自轉(zhuǎn)還會使人們視覺上出現(xiàn)日月星辰的東升西落現(xiàn)象。如果地球自轉(zhuǎn)方向變?yōu)樽詵|向西，可能引發(fā)的現(xiàn)象是太陽從西邊升起。例題3人類對地球運動的探索經(jīng)歷了一個相當(dāng)漫長的過程，他們探索的腳步從未停止。關(guān)于“地心說”和“日心說”的共同觀點是（

）。A.地球是靜止的B.太陽是宇宙的中心C.地球是球形的答案：C解析：“地心說”提出地球是宇宙的中心，“日心說”提出地球繞太陽轉(zhuǎn)，兩個學(xué)說的共同觀點是“地球是球體”。例題42023年10月26日，神州十七號載人飛船發(fā)射成功?；鸺蘸?，向東傾斜飛行，和地球自轉(zhuǎn)方向一致，利用地球自轉(zhuǎn)的慣