上次博士英语推送里我们讲了利用“in-” 记忆含“in-”单词的方法，不知道大家还记不记得啊？
哦，不太记得了啊！
神马？都不记得了啊！
哇特？一丢丢都不记得了啊！......那我们今天来考试吧。
考试要求1、考生在开考后找舒适姿势坐（躺）好，不得随意变动；2、考生在考试期间不准交头接耳，左顾右盼；3、考生不得携带字典入考场；4、考生考试中除非需查阅历史消息，不然不得离开考场，不得提前交卷；5、答卷完毕后需传送给他人。
不遵守以上规定者一律视为作弊，对考试作弊者以及成绩不及格者——小编我也没有什么办法。
I. Divide the following words into two meaning groups.inveterate intractable insuperable infatuate impertinent illustrious
inconsequential inoculate immanent irremediable
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II. Select the two answer choices that, when used to complete the sentence, fit the meaning of the sentence as a whole and produce completed sentences that are alike in meaning.
1. The Erie Canal's completion caused _______ economic ripples; property values and industrial output along its route rose exponentially.A. persistentB. invaluableC. incredulousD. prodigiousE. enormous
2. Researchers interested in the nature versus nurture debate use identical twins who were separated at birth to explore which personality characteristics are _______ compared to those that arise through experience.A. intractableB. innateC. eruditeD. predilectionE. instinctive
3. Few want to believe that Lisa de Giocondo, the woman popularly believed to have been the model for da Vinci's Mona Lisa, was a(n) _______ person and prefer instead to think that there is an enigma behind the celebrated smile.A. ingenuousB. artlessC. comelyD. facileE. inscrutable
4. The stock market having plunged drastically, the investor's _______ mood on the trading floor seemed incongruous.A. buoyantB. sanguineC. inconsolableD. sardonicE. funereal
5. Despite his lack of education and somewhat obtuse demeanor, the night watchman was relied upon by many for his _______ advice on matters of love and romance.A. insightfulB. youthfulC. pragmaticD. perspicaciousE. extravagant