1.detection n．察觉：发现(the act or process of detecting；discovery)

词根记忆：来自detect(矿察觉：发现)，de(去除)+tect(遮盖)--去掉遮盖一发现

例:Virtually everything astronomers know about objects outside the solar system is based on the detection of photons.

2.deter v.威慑(to overawe)；阻止(to discourage, or prevent from acting)

词根记忆：de(起强调作用)+ter( =terr吓唬)--威慑

例:The legislature enacts severe laws to deter motorists from picking fruit off the trees.

派生词：deterrence(n．妨碍物)；deterrent(n.威慑)

3.deteriorate v.（使）恶化(to impair, to degenerate)

词根记忆：来自deterior(拉丁文:糟糕的)

例:Compared with conditions before the war, sanitary conditions had deteriorated.

派生词：deterioration(n.变坏；退化)

4.deterioration n.恶化;退化;堕睹(the action or process of deteriorating)

词根记忆：来自deteriorate(v.恶化；变坏)

例:To reverse the deteriioration of the postal service, the government should raise the price of postage stamps.

同根词：deteriorator(n.堕落者)

5.determination n．决心；果断(the quality that makes you continue trying to do sth. even when this is difficult)

词根记忆：来自determine(v.决定)

例:It reinforced the religious elite's determination to resist cultural change.

同根词：interminable(a．无穷无尽的)

6.determinism n．决定论(a theory or doctrine that acts of the will, occurrences jn nature, or social or psychological phenomena are causally determined by preceding events or natural laws)

词根记忆：来自determine(v.决定)

例:Jon Clark's study is a solid contribution to a debate that encompasses two lively issues in the history and sociology of technology: technological determinism and social constructivism.

同根词：determinist(n.决定论者)

7.detrimental a．损害的，造成伤害的(causing detriment, harmful)

词根记忆：来自detriment（n.伤害），de(变坏)+trim(修剪)+ent一剪坏了--伤害

例:The detrimentaleffects were attributed to an amino acid that is one of the sweetener's principal constituents.

派生词：detrimentally(ad.有害地；不利地)

8.devastate v.毁坏(to bring to ruin by violent action)

联想记忆：de(去除)+vast(大量)+ate-+大量去除--毁坏；vast本身为词根：广阔的、大量的

例:Agriculture experts announced that the disease has devastated some of the corn crops.

派生词：devastating(a．毁灭性的)

9.deviate v.越轨，脱离(to diverge; to digress)

词根记忆：de(离开)+vi(路)+ate--离开道路一脱离

例:Why firms adhere to or deviate from their strategic plans is poorly understood. However, theory and limited research suggest that the process through which such plans emerge may play a part.

派生词：deviation(n.偏差,误差)

10.deviation n.背离(noticeable or marked departure from accepted norms of behavior)

词根记忆：来自deviate(v.脱离，偏轨)

例:The Chinese used a gravity meter to correct for local deviations in sea level.

同根词：deviant(n．不正常者：变异物；a.不正常的；离经叛道的)