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微小世界第一單元教科版《科學》·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}放大鏡放大鏡能把物體的圖像放大,使我們看到物體的更多細節。放大鏡又叫凸透鏡,鏡片是透明的,中央厚邊緣薄,放大倍數與鏡片的凸度有關。放大鏡的凸度越大,放大倍數越大,視野范圍越小。{"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}怎樣放得更大兩個凸透鏡平行組合可以使物體的圖像放得更大。兩個凸透鏡平行組合之間的距離會影響圖像的放大倍數和清晰度。用透鏡組合而成的顯微鏡叫作光學顯微鏡。光學顯微鏡的基本結構包括目鏡、物鏡、調節旋鈕、載物臺和反光鏡等。組合凸透鏡中,上方的凸透鏡相當于顯微鏡中的目鏡;下方的凸透鏡相當于顯微鏡中的物鏡。用電子顯微鏡可把物體的圖像放大約200萬倍。{"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}觀察身邊微小的物體同一個微小的物體在肉眼、放大鏡和顯微鏡下觀察到的圖像大小及視野是不同的。顯微鏡的使用方法:安放→對光→上片→調焦→觀察。肉眼/放大鏡/顯微鏡觀察下的視野區別:圖像越來越大,視野越來越小。受昆蟲啟發的發明創造:(a)百葉窗樣式控溫系統(蝴蝶鱗片);(b)蠅式氣味分析監視儀、蠅眼照相機/雷達/探測系統。{"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\":\"transla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)。A.凸度越來越大,放大倍數變大,觀察到的視野范圍變小B.凸度越來越大,放大倍數變大,觀察到的視野范圍變大C.凸度越來越大,放大倍數不變,觀察到的視野范圍變小D.凸度越來越大,放大倍數變小,觀察到的視野范圍變大答案:A例題3方形玻璃魚缸甲和球形玻璃魚缸乙中各養了一條小魚。從容器側面觀察,兩條小魚大小相同。若兩條小魚從水中取出比較,發現(
)。A.甲中魚大 B.乙中魚大 C.兩條魚一樣大答案:A解析:甲相當于玻璃,觀察到的魚不會變化;乙相當于凸透鏡,觀察到的魚比原來大。所以實際乙
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