2017届高考英语（重庆专用）二轮精练：选修8 unit2 Cloning单元测试
<p> <span word="Unit">Unit</span> 2 <span word="Cloning">Cloning</span> 单元测试（人教版选修8，重庆专用）</p><p> (满分：120分，时间：120分钟)</p><p> 第一部分</p><p> 英语知识运用 (共两节，满分45分)</p><p> 第一节 单项填空(共15小题；每小题1分，满分15分)</p><p> 从<span word="A">A</span>、<span word="B">B</span>、<span word="C">C</span>、<span word="D">D</span>四个选项中，选出可以填入空白处的最佳选项。</p><p> 1．<span word="Leaves">Leaves</span> <span word="are">are</span> <span word="found">found</span> <span word="on">on</span> <span word="all">all</span> <span word="kinds">kinds</span> <span word="of">of</span> <span word="trees">trees</span>, <span word="but">but</span> <span word="they">they</span> <span word="differ">differ</span> <span word="greatly">greatly</span>________<span word="size">size</span> <span word="and">and</span> <span word="shape">shape</span>.</p><p> <span word="A">A</span>．<span word="on">on</span></p><p> <span word="B">B</span>．<span word="from">from</span></p><p> <span word="C">C</span>．<span word="by">by</span></p><p> <span word="D">D</span>．<span word="in">in</span></p><p> 解析 句意：各种各样的树上都有树叶，但是大小和形状各不相同。<span word="differ">differ</span> <span word="in">in</span> <span word="sth">sth</span>意为“在……方面不同，有差异”，符合题意。<span word="differ">differ</span> <span word="on">on</span> <span word="sth">sth</span>意为“对某事有异议”；<span word="differ">differ</span> <span word="from">from</span> <span word="sb">sb</span>/<span word="sth">sth</span>意为“与某人/某事不同”；<span word="differ">differ</span>不能与<span word="by">by</span>构成搭配。</p><p> 答案 <span word="D">D</span></p><p> 2．<span word="Although">Although</span> <span word="metals">metals</span>________<span word="widely">widely</span> <span word="in">in</span> <span word="quality">quality</span> <span word="such">such</span> <span word="as">as</span> <span word="strength">strength</span> <span word="and">and</span> <span word="hardness">hardness</span>, <span word="they">they</span> <span word="all">all</span> <span word="have">have</span> <span word="certain">certain</span> <span word="qualities">qualities</span> <span word="in">in</span>________.</p><p> <span word="A">A</span>．<span word="vary">vary</span>; <span word="general">general</span></p><p> <span word="B">B</span>．<span word="differ">differ</span>; <span word="common">common</span></p><p> <span word="C">C</span>．<span word="react">react</span>; <span word="particular">particular</span></p><p> <span word="D">D</span>．<span word="divide">divide</span>; <span word="detail">detail</span></p><p> 解析 考查动词及固定短语辨析。句意：虽然金属的某些特性诸如强度和硬度等有很大差别，但是它们具有某些共同特性。第一个空用<span word="vary">vary</span>和<span word="differ">differ</span>皆可，表示“不同，有差异”。<span word="react">react</span>意为“对……作出反应”；<span word="divide">divide</span>意为“把整体分成个体”。第二个空要用<span word="in">in</span> <span word="common">common</span>，表示“共同的，共有的”。<span word="in">in</span> <span word="general">general</span> “一般说来”；<span word="in">in</span> <span word="particular">particular</span>“特别地，尤其是”；<span word="in">in</span> <span word="detail">detail</span>“详细地”。</p>
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