【正文】 feed on fencing fend fertile fertilize festival feverishly fiber fiction fidelity field research figurehead file fir flair flake flea fleeting flexibility flexible float flock flock to fluctuation flux folklore follow suit folly forage forbidding foremost foresee foreshadow forge formalized format formation formidable formulate fort fortify fortuitously fossilized foster fracture fragile fragility fragment fray freight frenetic frenzy frigid fringe from afar frustrate frustrating frustration functioning fumigate fungi furnish fused fusion galaxy gallery galvanize gap gaseous generate generous genetic genetically genial genre genuinely genial genuinely get in the way of giant girder give way to glacial glacier glamorous gland glandular glassware glimpse global go against the grain to go broke gorgeous gourmet granite graphic grasshopper gravitational gravity graze grazing land grumble gulf gush gymnastic gyration habitat hail hallmark halt hamper handicraft handson harden hardware harness hatch haul haunt n. haunted haven hazard heed heel helium hem hemisphere herald herculean herd heritage heterogeneous hibernation hierarchy highlight hinge hinterland hold a large stake hollow homogeneous horizon horizontal hostile house huddle hummingbird hurl hydrogen hypersensitive hypothesis ice sheet iceberg icicle icon identical identifiable identify identity ideology idiom igneous illuminate illumination illusion illustrate imaginary imaginative imbibe imitation immense immobilize immune immunity impact impair impart impediment imperative impermeable impersonal impersonate impersonation impetus implement implication implicit import impose imposing impressive imprint imprisonment improvisation improvise in accord with in mon in scale in terms of inaccessible inactivate inadequate inappropriate incapacitate incessant incident inclination incongruity incongruous incorporate incredible indent indicate indication indispensable individualism inducible industrialization industrialized inevitably inextricably infection inferiority infest inflation inflict ingenious ingeniously ingredient inhabit inhabitant inherit inhibit innumerable insanity insight insistence inspection inspiration inspire instantaneously instinctively institution institutionalize instructive instrumentalist insulation insulting insurmountable intact integral integrate integrated intelligible intense intensive intent interact with interaction interconnected interconnecting interdependence interdependent interference interior interlocking internal interpersonal interpretation interrupt interstellar interval intervention intimacy intoxication intricate intricately intriguing intrinsic intruder intruding intrusion invade inventory invertebrate ion irresistible irrevocably irrigate irrigation isolated isolation jealousy jellyfish jibe with jolting journalism junction jury juxtaposition keen kennel kernel kerosene kinetic laborious laboriously labyrinth lament landmass landscape landslide Larvae laser latitude lava lave layer layman learn by rote lease ledge legacy legume lengthen lettuce liable of light bulb limestone linger letter with livelihood living quarter loote lootive lootion logy longrange loom lore lumber luminosity luminous lure maneuver mania manifestation manipulate mansion mantle manual margin marine maritime markedly marrow mask masonry massive master