1.intricate a．复杂的(complex)

词根记忆：in+tric（琐碎，复杂）+ate--复杂的

例：As corporations begin to function globally, they develop an intricate web of marketing relationships.

同根词：extricate(v.解救)

2.intrigue n.阴谋(secret scheme);v.引起兴趣(to arouse the interest or curiosity of)

词根记忆：in（使）+trigue(引出，引发)--引起兴趣

例：The fossil remains of the pterosaurs（翼龙）have intrigued paleontologists(古生物学者)for more than two centuries.

派生词：intriguing(a．引起极大兴趣的)

3.intrinsic a．固有的，内在的(essential and inherent)

例：intrinsic value内在的价值

4.introductory a．引导的(of, relating to, or being a first step that sets sth. going or in proper perspective);介绍的(serving as an introduction or preface)

词根记忆：来自introduce(v.介绍)

例：Teachers of introductory courses in Asian American studies have been facing a dilemma nonexistent a few decades ago.

同根词：introduction(n.介绍)

5.intuition n．直觉（quick and ready insight）；由直觉获知的信息

词根记忆：intuit(由直觉知道)+ion--直觉

例：Some practicing managers rely heavily on intuition.

派生词：intuitive(a．直觉的)

6.intuitive a．直觉的(of intuition)

词根记忆：来自intuit(v.凭直觉知道)

例：Managers cannot justify their intuitive decisions.

派生词：intuitively( ad.直观地：直觉地)

同根词：intuition(n．直觉)

7.invade v.侵略，侵袭(to enter for conquest or plunder)

词根记忆：in（进入）+vad(走)+e--未经允许走进来--侵略

例；The girl's organs were invaded by parasites.

派生词：invader(n．侵略者，侵入的人或物)；invasion(n．入侵，侵略)

8.invariant a．不变的(unchanging)

例：Consumers recognize that the quality of products sold under invariant brand names can drift over time.

9.inventory n.存货(stock)

例：In an effort to reduce their inventories Italian vintners (葡萄酒商）have to cut prices.