1.dissent v./n.不同意（to differ in opinion）

词根记忆：dis(不)+sent(感觉)--没有同感--不同意

例:Of the ten members, only one dissented.//There is rarely any dissent among the club members.

2.dissimilar a．不同的，不相似的(unlike)

词根记忆：dis(不)+similar(相似的)--不相似的

例:Some fraternal twins resemble each other greatly and others look quite dissimilar

派生词：dissimilarly( ad.不同地)

同根词：similar(a．相似的；n.类似物)

3.dissipate v.（使）消散，（使）消失(to break up and scatter or vanish)

词根记忆：dis(分开)+sip(吸)+ate--吸走--消失

例:The warm air from the stove rapidly dissipated in such a cold room.

4.dissociate v.分离，分开(to separate from association or union with another）

词根记忆：dis(不)+soci(同伴，引申为社会)+ate--不要同伴一分离

例:Max dissociated himself from the radical group.

5.distill v.蒸馏(to let fall, exude, or precipitate in drops or in a wet mist)；提取(to extract the essence of)

词根记忆：di（分离）+still(滴)一分离出来的水滴一蒸馏

注意：distillate(n.馏出液，精华)：instill(v.滴注，灌输)

例:This alcohol is distilled from cereal grain.//They left it to the textbook writers to distill the essence of those values for school children.

派生词：distillation(n.蒸馏)

6.distinct a．不同的，有差别的(different)

词根记忆：di(分开)+stinct( =sting刺)--用刺促使分开--不同的

例:There are several distinct strains of malaria.

派生词：distinctly( ad.不同地)；distinction(n.区别)；distinctiveness(n.特殊性)

7.distinctive a．出众的，有特色的(that distinguishes sth. by making it different from others)

词根记忆：distinct(明显的)+ive--出众的，有特色的

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

派生词：distinctively( ad.特殊地；区别地)

8.distinguish v.区别，辨清（to perceive a difference in）；（使）杰出(to give prominence or distinction to)

词根记忆：di（分开）+sting(刺)+uish--将刺挑出来--区别

例:Researchers successfully trained an anteater to distinguish between two troughs of water.//Tom distinguished himself in chemistry.

派生词：distinguished(a，杰出的)：distinguishing(a．有区别的)

9.distort v.弄歪(to twist out of a natural, normal, or original shape of condition);歪曲(to deform)

词根记忆：dis+tort(扭曲)--弄歪，歪曲

例:My research suggests that textbooks sometimes distort history to suit a particular cultural value system.

派生词：distorted(a．扭曲的)；distortion(n．扭曲，曲解)

10.distribute v.分配，分发(to divide among several or many）

词根记忆：dis+tribute(给)--给予--分配

例:The courts in theory are available to all but in fact are unequally distributed between rich and poor.

派生词：distribution(n.分配)；distributive(a．分配的)：distributor(n.发行人)