1.insuperable a．难以克服的(incapable of being overcome or solved)

词根记忆：in（不）+super(超越)+able--不可超越的--难以克服的

例：insuperable obstacles无法克服的障碍

同根词：supernatural(a．超自然的)

2.intact a．完整的，未动过的(not damaged, whole)

词根记忆：in(不)+tact(接触)--未接触过--未动过的

例：Less than 50 percent of a certain tropical country's wildlands remain intact.

同根词：contact(v.接触)：tactile(a．接触的)

3.intaken．摄取，摄入(a taking in)

例：People are not as concerned as they were a decade ago about regulating their intake of red meat.

4.intangible a．无形的，难以确定的(not capable of being identified or realized)

词根记忆：in（不）+tangible(可触摸的)--不可触摸的--无形的

例：intangible and physical assets无形资产和有形资产

5.integer n．整数(any of the natural numbers, the negatives of these numbers, or zero)

派生词：integral（a．整体的）

6.integrate v.—体化，成整体（to unify）

例：Some academicians deem that business ethics should be integrated into every business course.

派生词：integration（n．结合，综合）；integrant（a．不可分割的）

同根词：integrity（n．完整；正直）

7.integrated a．综合的：完整的(united)

例：integrated international market综合国际市场

8.integration n.集成;综合(the act or process or an instance of integrating )

词根记忆：来自 integrate( v.使完整, 使成整体)

例：School integration plans that involve busing between suburban and central-city areas have contributed, according to a recent study, significant increases in housing integration, which, in turn, reduces any future need for busing.

9.intelligence n．智力(the ability to learn, understand and think in a logical way about things)；情报(information concerning an enemy or possible enemy or an area)

词根记忆：来自intelligent(a．智能的；聪明的)

例：Women scientists are above average in terms of intelligence and creativity

同根词：intellectual(a．智力的：n．知识分子)