2021-2022学年七年级上册生物人教版每节一练：2.1.1练习使用显微镜（基础题）
※题型：单选题※知识点：单选题※试题难度：中等<br>在用显微镜观察物像时,如果外界光线较暗,则反光镜应选用( )<br>A.平面镜 B.凹面镜 C.凸透镜 D.凹透镜<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/437f5e71974e418995725a4953638c15/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/df84ce97c6d1424d9bad309303b988f0/E725DE0C49B1D788E082E336C8B66EAB.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>在使用普通光学显微镜时,转动哪个结构,能较大范围地升降镜筒( )<br>A.粗准焦螺旋 B.遮光器 C.转换器 D.细准焦螺旋<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/cb14e607d6ed406fac660007649edacd/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/45ea7365ad324bdcb10dc6aad877cb70/1CD205D744F4426F630817A46E2DFA28.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>在使用显微镜的过程中,下列操作不能改变视野亮度的是( )<br>A.更换物镜 B.调节光圈大小<br>C.移动玻片 D.翻转反光镜<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/3fe49b7fb0a94845b9d944d10cb83c92/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/dd323594c93e4e67a0d37fd4b6ef6b9e/D63A1BBB925CBB7E6C57F1865B2C35D0.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>某显微镜的目镜上标着“5×”,物镜上标着“40×”,则这台显微镜的放大倍数是( )<br>A.45 B.200 C.5 D.40<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2014/20816a870f594779ab6a1f67ab32454b/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2014/96ffbdfe7f8b4fd9bc3e33380aae5ad6/6365C086D53A5029C278D475B9F1CC90.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>某同学在使用安装好的显微镜观察细胞时,发现视野漆黑一片,他应该尝试调整( )<br>A.目镜 B.反光镜 C.装片 D.粗准焦螺旋<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/790ab3d278554dfb959884b0eac028ce/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/48346cced17a472983276497af68d8ee/AB1BE92DD8EC52FD6781AD3195FE07E1.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>在生物科学迅速发展的今天,各种显微镜在不同领域大显身手。下列行为需要应用显微镜的是( )<br>A.观察蝗虫的外部结构 B.观察病毒的结构<br>C.观察食物是否发霉 D.观察种子萌发的过程<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/22d5e0d364f64ea8b5dbb351c2a93e68/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/aba93ae09e4a4017a0c5bb6ba2b70cfc/F49A56498E14D245D0D584C283B804B7.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>用显微镜进行观察时,能看见图像但比较模糊,不利于观察,如果要想看到清晰的标本图像,正确的调节是( )<br>A.调节粗准焦螺旋 B.调节细准焦螺旋<br>C.调节反光镜的面镜 D.调节目镜<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2014/488358be9f1b45a5b47339538518c29c/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2014/d4d275e8aa07483a9c311952d12f45b4/86E35E60ECC72C50946CF6F93916AAB8.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>使用显微镜观察装片的实验过程中,对光、下降镜筒和上升镜筒时,眼睛应分别注视( )<br>A.反光镜、目镜、物镜 B.目镜、物镜、目镜<br>C.反光镜、物镜、目镜 D.物镜、物镜、目镜<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/67c6dd0a55d646b9bb2af2dfb42745ee/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/a42621213cb041b4a56fcaf42833307b/B294FDD784382CA4F97879939B240F9B.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>将写有字母p的载玻片放在低倍显微镜下观察,在视野中看到的物像是( )<br>A.p B.b C.d D.q<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/bddd677d7f5c4f79a68a963a9a2c0aee/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/fdcf5072e58049c9938fce38efe0949c/CFB838FE149189A82C376D2C87EAF7BF.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>十九大工作报告中,习近平提出实现伟大中国梦。用显微镜观察中文“中国梦”,看到的物像是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/8/3/AEA069EDC44181EF8B71F2CA5595974B.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/8/3/5E90139950B9570773BB07250FEF79F5.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/8/3/F3037BE0D2730C2BDEC3CA02EC765409.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/8/3/DE3DD27AC74E4EC3BB465C27FFEE14B6.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/eb468208528d4317a16902a74eb4ae03/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/fa78a9c704f84d3ead64305dfc681963/45FC6F7EC90CDD9A405E4CD732CA3F07.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>在使用显微镜的实验课上,甲同学将反光镜对着太阳光以便视野内达到最大亮度;乙同学发现目镜脏了,于是拿起卫生纸将其擦干净;丙同学在显微镜下观察月季花粉粒时,两眼睁开,左眼观察,右手画图;丁同学使用低倍物镜看不到细胞,于是他换高倍物镜期望能看到细胞。上述操作正确的是( )<br>A.甲 B.乙 C.丙 D.丁<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/65bf8ac1db5d4cb7b1eaa2641f1aeb6d/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/0cdd2b3fb27b4e86b8ef20dbee6c54d3/128A0F3DBFBBDF4A8423F2BCF8B279A7.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>小<br>玲同学<br>正在练习使用显微镜,请帮她回答以下问题:<br>1.她使用的显微镜目镜是5×,物镜是8×,则显微镜的放大倍数是倍。<br>2.观察时若左眼注视目镜,则右眼(填“睁开”或“闭上”)。<br>3.她在显微镜视野中看到了一个“b”字,那么载物台上所放的透明纸片上写的字是。说明从目镜内看到的物像是像。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/d99761a2e60c4c0eb4ec8383f8232563/18EC0172EB4202AA11AFE38E9D55682F.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/7a3beaba61b04397949cda11912dc8ab/F75E23A0D46E1D690FCA0DC28D81AF67.png"><br><br>
页:
[1]