1.conversion n.转换；折合(the exchange of one type of security or currency for another);财产转移(the changing of real property to personal property or vice versa)

词根记忆：con+vers(转)+ion一转换

例:Those farmers started the conversion of their intangible worth into cash terms.//conversion to cooperative ownership转移合作所有权

2.convert v.(into)（使）转化;（使）改变( to transform)；换算(to transform)

词根记忆：con+vert(转)--转换

例:The equipment is used to convert solar energy into electricity.

3.convey v.运载，运送(to bear from one place to another);表达(to impart or communicate)

词根记忆：con(共同)+vey(道路)--通过道路一起走--运载，运送

例:Human beings can see the spatial relations among objects by processing information conveyad by light.//The author intended to convey a negative attitude toward the role of race in determining status.

派生词：conveyor(n.运送者;运送设备)

4.conviction n.判罪(the act or process of convicting of a crime)；坚信(strong belief)

词根记忆：来自convict(矿定罪)，con+vict(征服)--征服罪犯_判罪；尤其注意conviction“坚信”一意

例:Many migrants came to America out of religious or political conviction.//The Revolutionary generation asserted its conviction that the welfare of the Republic rested upon an educated citizenry.

同根词：victory(n.胜利)；invincible(a.无敌的)

5.convince v.（使）某人确信(to bring to belief)；说服(to persuade)

词根记忆：con(全部)+vince(征服，克服)一彻底征服对方一说服

例:People will follow medical advice when they are convinced that it is effective.//The mayor's publicity campaign has convihced many people to leave their cars at home and ride the bus to work.

派生词：convinced(a．确信的)；convincingly(ad.信服地，有说服力地)

6.convoluted a．错综复杂的(twisted and tangled)

词根记忆：con(共同)+volut(滚)+ed--缠绕在一起的--错综复杂的

例:The message was so convoluted that Bill couldn't understand it.

派生词：convolve(v.卷，缠绕);convolution(n.回旋，卷绕)

7.cooperate v.合作(to associate with another or others for mutual benefit);配合(to act or work with another or others)

词根记忆：co（共同）+opert工作）+ate--起工作--合作

例:Employees who are frequently absent are the least likely to cooperate with or to join a corporate fitness program.

派生词：cooperation(n.合作)

同根词：operable(a.可操作的；可动手术的)

8.coordinate n.坐标(any of a set of numbers used in specifying the location of a point on a line, on a surface, or in space) v.协调(harmonize)

例:x-coordinate X（坐标）轴//The firms coordinated such activities by using available means of communication and transport.

派生词：coordination(n.协调，调和)

9.copper n.铜(chemical element,a common reddish-brown metal);a．铜（制）的

联想记忆：cop(警察)+per--警察制服上的钢扣

例:copper mining company铜矿开采企业

10.coral n.珊瑚;珊瑚虫

联想记忆：cor(看作core核心)+al-+大海的核心之处有珊瑚--珊瑚

例:coral reef珊瑚礁