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在记忆和背诵考研单词636f707962616964757a686964616f31333337383838时,老师们会推荐词根词缀法记忆单词,这种方法科学合理,记忆牢固并且迅速。同时,我们都知道,词汇的前缀一般修饰或者改变单词的意思,词汇的后缀一般改变单词的词性。万学海文为了广大考生更好更快的记忆单词,对考研英语词汇常见前缀进行了汇总,希望对2016届考研的广大考生有所帮助。表示数字的前缀1. hemi-, semi-:半hemicycle n. 半圆形;半圆形建筑E.g. The inner container is stainless steel, hemicycle structure is easy to clean.采用镜面不锈钢内胆,四角半圆弧易清洁。semiautomatic adj. 半自动的E.g.It is illegal in some countries to hunt with a semiautomatic rifle. 在有些地方使用半自动步枪狩猎是违法的。2. mono-,uni-:one 单一monologuen. 独白E.g.Morris ignored the question and continued his monologue. 莫里斯不理会这个问题,继续他的长篇大论。uniformadj. 统一的;均匀的E.g.The rows of houses were uniform in appearance.这一排排的房屋外表都是一样的。3. ambi-, amphi-:两,周围ambiguous adj. 有两个意义的,暧昧的E.g.In fact, your ambiguous words amount to a refusal. 实际上,你说的那些模棱两可的话等于是拒绝。amphibianadj.两栖的E.g.It is being actively pursued by amphibian specialists.许多两栖类生物研究专家正积极的从事这项工作。4. bi-, di-:二、双biweekly adj. 两周一次的E.g.He used to see them at the biweekly meetings. 他以前总是在两周一次的会议上看到他们。dioxide二氧化物E.g.The proposed initiative would mandate a rection of carbon dioxide of 40%.倡议将强制规定把二氧化碳排放量降低40%。5. tri-:三triangle三角形E.g.He swept a triangle with his finger. 他用手指在空中画了个三角形。triple三倍的E.g.The mine reportedly had an accident rate triple the national average. 据报道,该矿事故发生率是全国平均水平的3倍。6. multi-, poly-:多multiformadj. 多样的E.g.We hope for multiform cooperation with new and old clients both at home and abroad.公司期盼与国内外新老客户进行多种形式的合作。polygon多边形E.g.Boundaries of the polygon may extend to infinity. 多角形的边界可以延伸到无穷远处。