2021-2022学年人教版生物七年级上册10分钟达标训练：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：中等<br>使用显微镜时,错误的操作是( )<br>A.对光是要看到白亮的视野<br>B.安放时镜座距实验台边缘约5cm<br>C.观察使用右眼看着目镜,左眼睁开,便于画图<br>D.当光线较暗时,用反光镜的凹面来对光<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/fd9a2f0c653c46f0acbf12887920ea51/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/73cb340bba684235b95582147cf90143/3F5DA9275B25D493ECEAB615378EC906.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>用显微镜观察细胞时,以下四种镜头组合中放大倍数最大的是( )<br>A.目镜10×,物镜10× B.目镜5×,物镜4×<br>C.目镜10×,物镜40× D.目镜5×,物镜10×<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/ba83afc6c02c4ad49bd896da239bd8e1/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/41ff9586001943eb9514840794d67f09/B32E2CD0DE166DF9E8DDD4B7C305B047.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>如图是光学显微镜的一组目镜(①和②)和物镜(③和④),以及观察到清晰物像时物镜与载玻片间的距离图示,为了观察到更多的细胞,目镜和物镜及它们与载玻片距离最为合适的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2021/8/5/2ADF33E905B975EC0B54833C240FF050.png"><br>A.①③ B.①④ C.②③ D.②④<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/250b2053224f4dd4b7639b077a3419b1/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/61e7b682cad14ba486d6dd3243f88903/5E09A77081CB77A028847EA2357BAA5D.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>用显微镜观察时,要将图中视野甲转换为视野乙,下列操作合理的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/29/41CBCE0901CDBACCCC19A1AFABE095F0.png"><br>A.首先调节细准焦螺旋<br>B.首先将镜筒缓缓下降到最低处<br>C.将低倍物镜转换为高倍物镜<br>D.移动玻片标本<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/b5e58f68177542a180abcb32c320cd60/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/69c1719fce78478da24e52d5613a115d/E6D6F08F1B36544E5245D23BCB285DD9.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>在载玻片上写一个如图甲所示的“生”字,怎样使显微镜下观察到的图像变成图乙所示?( )<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/3/10/BF5A30049CC419029EAB1216AC2D505C.png"><br>A.将载玻片顺时针转动90°<br>B.将载玻片向左上角移动<br>C.将载玻片逆时针转动90°<br>D.将载玻片向右下角移动<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/09d4cb78245f46888430646ffb99decd/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/d6505c2bf051414992325bfa1ab90f19/D81068A01D64399B67A1E541A66FC877.png"><br><br>
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