1.corroborate v.证实（to supporl: with evidence or authorty)

词根记忆：cor+robor(力量strength)+ate--加强力量来证实--证实

例:These data corroborate the hypothesis of the experiment.

派生词：corroborator(n.确证者)

同根词：corroborant(a．确证的;补身的)；roborant(n.强壮剂)

2.corrosion n.腐蚀（状态）,侵蚀（the action, process, or effect of corroding）

词根记忆：来自corrode(v.侵蚀)

例:It can cause blackouts in some areas and corrosion in north-south pipelines.

派生词：corrosive(a．腐蚀性的)

3.corrosive a．腐蚀性的，蚀坏的(tending or having the power to corrode)

词根记忆：来自corrode(v.侵蚀;损害)

例:The cable car will replace the tour buses whose large wheels and corrosive exhaust at present do significant damage to the site.

4.corruption n.腐化，堕落(depravity)

词根记忆：来自corrupt(v.腐化，使堕落)

例:The socialization was a way of resisting what they perceived as the relentless corruption of human values by the marketplace.//The corruption of public officials makes the government look bad.

5.cortex n.（内部器官的）皮质(the outer layer of an internal organ or body structure, as of the kidney or adrenal gland)

词根记忆：该词也有“（植物的）皮层，树皮”之意。

注意：bark(n．树皮)

例:adrenal cortex肾上腺皮质

6.cosmetic n．化妆品(makeup)

联想记忆：cos(看作cost花费)+metic一化妆品花费很高

例:Cosmetics are being tested on sentient animals.

7.cosmic a.宇宙的(of or relating to the cosmos)

词根记忆：cosm(宇宙)+ic一宇宙的

例:cosmic explosion宇宙大爆炸

同根词：cosmopolis(n.国际都市)；cosmos(n.宇宙)

8.council n.理事会，委员会(an assembly or meeting for consultation, advice, or discussion)

例:the National Security Council圄家安全委员会

9.counteract v.消除，抵消（to make ineffective or neutralize the ill effects of）

词根记忆：counter(反)+act（动作）一做相反的动作一消除，抵消

例:To help counteract our declining market share, we should increase the productivity of our professional staff members.

10.counterattack n．反攻,反击(beat back)

分拆记忆：counter(相反的)+attack(攻击)一反击

例:The Environmental Protection Agency's proposal to place restrictions on both diesel fuel and diesel engines has sparked a counterattack by the oil industry.