高中英文參考詞彙表：第六級 I, J, K

iceberg
illuminate
imminent
imperative
imperial
implicit
imposing
imprison / imprisonment
incline
inclusive
incur
indifference
indignant
induce
industrialize
infectious
infer
inflict
inhabit
inhabitant
injustice
inland
innumerable
inquire
insistence
instinctive
intake
intellect
interpreter
intersection
intervene
intimacy
intimidate
intonation
intrigue
intrude
intruder
invaluable
invariably
inventory
ironic
irritable
irritate
isle
itch
ivy

jade
janitor
jasmine
jingle
jockey
jolly
joyous
junction

kin
kindle
knowledgeable