1.1.2学会观察2021-2022学年生物冀少版七年级上册随堂小测
※题型：单选题※知识点：单选题※试题难度：中等<br>下列实验器具中,主要用于观察的是( )<br>A.放大镜 B.载玻片 C.盖玻片 D.酒精灯<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/00b968f7158b48db968e84700cb92c1b/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/2a3a919d339a4a2fbef3c0dd9c98dd04/500256D8AA901FE2315EFF687A1F8880.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>能直接放在显微镜下观察的是( )<br>A.手指 B.血液 C.玻片标本 D.杨树叶<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/566a19c38aea49df9304fe44ebae913d/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/bf07948fe78c4d85bf83c304020d136b/F5C05C98BD0326CCD16BB0F1AF4C5F1A.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>使用显微镜观察玻片标本时,若发现视野中光线较暗,则应该用( )<br>A.小光圈、凹面镜 B.大光圈、平面镜<br>C.小光圈、平面镜 D.大光圈、凹面镜<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/1746fc734f4e44bf86a06dab522ba0c6/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/6d38314b015e470186ee051170e8b253/0E58C45899FC4B0A9A5F7034DED9CC8E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>使用显微镜观察花粉粒时,下列做法不正确的是( )<br>A.对显微镜要轻拿轻放<br>B.对光时使用最大的光圈<br>C.花粉粒标本应正对通光孔中心<br>D.转动粗准焦螺旋使物像更清晰<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/1c984c5032b34e04a7fafa7dab7be453/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/4f3d157f11b54365923da47dead3b00c/3A64DC74394E503D59564855EB171604.png"><br><br>
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