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【记】联想记忆：adam（亚当） + ant（…的）→亚当是坚强的→坚定不移的，强硬的
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【例】①Mason has expressed his adamant disapproval on the suggestion.
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②Despite a growing number of honorable exceptions, too many of the world’s leaders are still best described in the words Winston Churchill applied to those who ignored Adolf Hitler’s threat: “They go on in strange paradox, decided only to be undecided, resolved to be irresolute, adamant for drift, solid for fluidity, all powerful to be impotent.”（2008）
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perfunctory［pəˈfʌŋktəri］adj. 敷衍的，马虎的
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【记】词根记忆：per（坏） + funct（活动） + ory→带来坏处的活动→敷衍的
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【例】The girl will not improve unless she changes her perfunctory attitude.
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【派】perfunctorily（adv. 马虎地，敷衍地）
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operational［ˌɔpəˈreiʃənəl］adj. 可操作的，可使用的；操作上的
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【记】词根记忆：op（工作） + er + ation + al→工作用的→可操作的
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【例】NCSA, one of the four operational federal supercomputer centres in the country, is awaiting a decision from the Foundation’s board late this month on a competition for US $16 million in continued annual federal funding. （1999）
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partiality［ˌpɑːʃiˈæliti］n. 偏袒，偏心；偏爱
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【记】联想记忆：part（部分） + ial + ity→只看部分→偏心
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【例】Your partiality for Dorothy is no secret to your friends.
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【用】固定搭配为partiality to / toward sb. 和partiality for sth.，注意对物和对人所用的介词不一样。
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huddle［ˈhʌdl］n. 杂乱的一群 v. 聚在一起，挤作一团
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【例】①Wilson was cold so he huddled up against the radiator.
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②His objective was a tiny huddle of buildings perched halfway up an enormous valley wall across from him, atop a great wooded spur jutting out from the lower lap of the 22,493-foot AmaDablum, one of the most majestic mountains on earth. （2009）
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【用】常见句型为go into a huddle with sb.，意为“与某人秘密商议”；还可与into, up, together连用，表“使成一团”。
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levity［ˈleviti］n. 轻浮，轻率
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【记】词根记忆：lev（举起） + ity→举起的状态→轻浮
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【例】Anne reproached me bitterly for my levity and neglect.
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present［priˈzənt］vt. 给予；造成；呈递；上演；介绍
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【例】①In Paris, there are various cocktail parties and buffet receptions which provide a good opportunity for people to make friends of all kinds. If strangers from Asia meet on such occasions, they will usually present their name-cards to each other with two hands, and in all sincerity, before starting a conversation, which seems an overwhelming routine. （1996）
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②Little did the English people owe him for his services, and heavily did they pay for his adventures. He was in England only twice for a few short months in his ten years’ reign; yet his memory has always English hearts, and seems to present throughout the centuries the pattern of the fighting man. （2007）