英语中总会遇到一些又长又难的词汇，记忆有难度。但如果结合句子来看，相信会容易不少。新东方在线整理了一些真题中常考的一些长难词，结合真题例句和翻译，大家加深记忆。
2018考研英语必背长难词（12）
interactivity [ˌɪntərˈæktɪv] n.互动性
[真题例句] The examples of Virtual Vineyards, Amazon.com, and other pioneers show that a Web site selling the right kind of products with the right mix of interactivity, hospitality, and security will attract online customers.[1999年阅读2]
[例句精译] 像Virtual Vineyards和Amazon.com及其他开拓者的例子说明：一个销售适类商品的网站，如果将交互性、热情服务、安全性合理结合，肯定会吸引网上用户的。
intentionally [ɪnˈtenʃənlɪ] ad.有意地，故意地
[真题例句] Nevertheless Williams’s suit charged that the casino, knowing he was “helplessly addicted to gambling” intentionally worked to “lure” him to “engage in conduct against his will” well.[2006年新题型]
[例句精译] 然而威廉姆斯还是控告娱乐场，明知道他“不可救药地赌博上瘾”还故意“诱惑”他“违背他自己的意愿参加赌博”。
intelligently [inˈtelidʒəntli] ad.聪明地
[真题例句] In making a blueprint for a job, begin with yourself, for when you know exactly what you have to offer, you can intelligently plan where to sell your services.[1996年阅读1]
[例句精译] 为找工作做筹划，从你自己开始，因为只有当你确切知道你可以提供什么服务，你才可能明智地筹划到哪儿去兜售你的服务。
institutional [ˌɪnstiˈtju:ʃənəl] a.组织机构的
[真题例句] As time went by, computers became smaller and more powerful, and they became “personal” too, as well as (33：institutional) , with display becoming sharper and storage (34：capacity) increasing.[2002年完形]
[例句精译] 随着时间的发展，电脑变得越来越小，也越来越强大。现在出现了个人电脑，也出现了适用于各种组织机构的大型机，它的显示分辨率越来越高，存储能力越来越强。