1.epicenter n.震中(the part of the earth's surface directly above the focus of an earthquake)

发音记忆：epi(挨劈)+center(中心)--土地挨劈的中心--震中

例：The epicenteris in the crust, whereas the focus is in the mantle.

2.epidemic a．传染的(catching)；流行性的( spreading quickly among many people in the same place for a time);n.流行病(disease spreading rapidly and extensively by infection)

词根记忆：epi(向)+dem(人)+ic一在人之间传染的一传染的；流行性的

例：epidemic disease流行性疾病//The Black Plague was an epidemic in the Middle Ages.

3.episode n.一段情节(a usually brief unit of action in a dramatic or literary work);（一个）事件(an incident or event that is part of a progression or a larger sequence)

例：Major episodes of extinction can result from widespread environmental disturbances.

4.episodic a．偶然发生的；分散性的（occurringrreguIarIy）

词根记忆：来自episode(n.片断)

例：The binding of different kinds of information is not a distinctive feature of episodic memory.

5.epochal a．划时代的(of or relating to an epoch)；有重大意义的(uniquely or highly significant)

词根记忆：epoch(时代)+al--划时代的

例：The Supreme Court had issued its ruling in this epochal desegregation case.

6.equalize v.（使）平衡，相等(to make equal)

例：Bob equalized the amount of soup in the bowls he was filling.

7.equilibrium n.平衡（a state of balance or equality between opposing forces)

词根记忆：equi（平等）+libr(平衡)+ium --平衡

例：By persuading people to eat what had previously been horse feed,market equihbrium was restored.

同根词：equilibrate(v.使平衡)

8.equip v.(with)装备，配备(to furnish)

例：This hotel was equipped with cable television.

派生词:equipment(n.装备，配备)

9.equity n.公平，公正(justice)

词根记忆：equi（相等）+ty--西边都相等--公平，公正

例：They should consider promoting pay equity between temporary and permanent workers.

派生词:equitable(a．公平的，公正的)

10.equivalent a．相同的，相当的(equal, same);n.等价物(something that is essentially equal to another)

词根记忆：equi(相等)+val(力量)+ent--力量相等的--相同的

例：The myth that labor rates and labor costs are equivalent is supported by business journalists.