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

詞根記憶：in（不）+super(超越)+able--不可超越的--難以克服的

例：insuperable obstacles無法克服的障礙

同根詞：supernatural(a．超自然的)

2.intact a．完整的，未動過的(not damaged, whole)

詞根記憶：in(不)+tact(接觸)--未接觸過--未動過的

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

同根詞：contact(v.接觸)：tactile(a．接觸的)

3.intaken．攝取，攝入(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．無形的，難以確定的(not capable of being identified or realized)

詞根記憶：in（不）+tangible(可觸摸的)--不可觸摸的--無形的

例：intangible and physical assets無形資產和有形資產

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

派生詞：integral（a．整體的）

6.integrate v.—體化，成整體（to unify）

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

派生詞：integration（n．結合，綜合）；integrant（a．不可分割的）

同根詞：integrity（n．完整；正直）

7.integrated a．綜合的：完整的(united)

例：integrated international market綜合國際市場

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

詞根記憶：來自 integrate( v.使完整, 使成整體)

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)；情報(information concerning an enemy or possible enemy or an area)

詞根記憶：來自intelligent(a．智能的；聰明的)

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

同根詞：intellectual(a．智力的：n．知識分子)