2021-2022学年生物人教版七年级上学期预习练：2.1.1练习使用显微镜
※题型：单选题※知识点：单选题※试题难度：较易<br>取显微镜的正确方法是( )<br>A.用两手握住镜臂<br>B.用左手提着镜臂<br>C.右手握住镜臂、左手托住镜座<br>D.用两手托住镜座<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/c595b12f7c604bceb3c706d9eebca704/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/4277075b71874118baaf6b2c21c24a7f/F6C5F260A263CCFC6B702AEF2CEC2203.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>使用显微镜时,如果要使镜筒升降的范围比较大,应调节( )<br>A.转换器 B.细准焦螺旋 C.粗准焦螺旋 D.镜臂<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/baae0ea7cf3048fa968d5406125b333b/B01B9AD1709CC523F9D63862305777A8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/454fd410177449c9af2e0e6ca60f5769/F8A13A0244A19BFF270272875A92164B.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>在用光学显微镜观察装片时,由于突然停电导致视野偏暗。班里同学采取的如下措施合理的是( )<br>A.凹面镜换成平面镜 B.调节粗准焦螺旋<br>C.换用高倍镜 D.用更大的光圈<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2013/2843423257384d69aa75d9bc298aa95a/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2013/3817f865e3b64f40947dddcd3c1271ed/C0E53020CD8381F0CB1336FF06A157AA.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>小明使用显微镜观察细胞,发现视野中的物像不是很清晰,应调节显微镜的( )<br>A.粗准焦螺旋 B.细准焦螺旋 C.反光镜 D.光圈<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/be335c34cbeb4a9bb55eecd4283a0bb6/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/0a7feaa28f904a269979571c15c150a2/0B2FC8B493FBCF24B52F44AE5BB312A6.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>使用显微镜时,若光线过强,可选用( )<br>A.平面镜、小光圈 B.凹面镜、大光圈<br>C.平面镜、大光圈 D.凹面镜、小光圈<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/7e6aac569cca461e8f491b2ff04ab2f6/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/c8e856b31f8e45cbbfaf1ab2ea17e994/D7421ED87FEA493B4F9A81D261DFBDFB.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列是有关显微镜使用的叙述,前一项是操作,后一项是目的,其中正确的是( )<br>A.转动转换器一换用不同放大倍数的目镜<br>B.调节光圈一调节视野的大小<br>C.调节细准焦螺旋一使看到的物像更清晰<br>D.调节反光镜一调节物像的大小<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/f5103a71e73b415d9cf393d10379e80e/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/10f72d3a92c24b48ac0fbed3efbf0bfa/35F8424B65828D2ABC72AABBCCFA821B.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>显微镜对光时,选择的物镜应该是( )<br>A.10× B.15× C.40× D.45×<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/145ecf92b241483daf14aa063fc1835c/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/b39dc45f858f4047bba2fd5cf04b4d17/BE024C2A0FB8F4D41205D8827E3401C4.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>用显微镜观察细胞时,在视野中出现了一个污点,这个污点可能在目镜上也可能在玻片上,判断其位置的最简单操作是( )<br>A.转动目镜 B.更换目镜 C.转换物镜 D.重新制片<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/168d28482a2d48f5a24341acd416bc26/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/6c2107be07a34b11b8575c1baf11f920/D8CB45FC073AB37DF29EE8DFB2CA76FC.png"><br><br>※题型：读图填空题※知识点：读图填空题※试题难度：较易<br>如图示显微镜的结构<br>回答与显微镜有关的问题<br><img src="https://picture2.zhihuicn.com/testImage/2/2019/8/22/CF627C31124B4A86F39880970DBA6DDE.png"><br>1.填写图中显微镜的相关结构名称:②是,⑤是,⑥是,⑦是。<br>2.在显微镜结构中,与放大倍数直接也关的是:[]和[]。<br>3.要使视野变亮,可调节遮光器选择光圈和用反光镜的面镜对光。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/4fd79906d2d4471d88c7363f927abbf3/DEE1FFD85CB07A7B47E16A76248C3B30.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/9ef3e1d5fbe748319b6fe1867aedfa8d/35856DE4CF8C29D0D9A1FC3E511FC40D.png"><br><br>
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