托福真题词汇20组（上）词汇表

penetration clay transfer quantity substantial absorb typically mobile accumulate erosion accelerate subsequent stabilize accomplish threaten desertification expansion alarming approximate occupy afloat initial scarce triangular propulsion rear backbone locomotion tail portion skeleton Egypt breed shallow adaptation detect jawbone precious skull in honour of reconstruct transitional intermediate extinct functional walrus seal otter dwelling affinity disguise hind absence streamline gill lung cetacean mammal dolphin porpoise whale obvious seedling creep avalanche smother cessation frost prone velocity expose duration ridge latitude particularly twisted broadleaf deciduous evergreen normally moist subtropics region polar tropic moisture edge steppe zone herb shrub vertical dramatic tundra transition compromise inclination ascribe attribute artistic retain welfare ridiculous norm deviation detachment sufficient comedy comic detach penchant instinct escape whereby confront anxiety objectify permit drama fiction encounter reshape fantasy imitative century Aristotle cease theorize antecedent theatrical motivation grace virtuosity admiration imitation gymnastic evolve assume pantomime narrator elaborate feat hunt fundamental alternative propose efficacious aesthetic thereafter autonomous occur divorce oral rite modify abandon causal conception sophisticated accompany mythical costume performer celebrate ceremony fixed formalize refine connection apparent supernatural occurrence well-being briefly perceive ritual myth envision anthropologist champion theory concrete speculation theater origin overlie firmly overcome film instant tension clinging drain crevice cavity ease permeability porosity bubble lava volcanic solidify basalt exception crystalline proportion porous percolate dissolve plug pore minute cement upper thick relative slope fanwise valley scale deposit glacial laden volume melt sheet sediment coarse beneath gravel unconsolidated loose pebble tiny grain particle underfoot solid incredible remain emerge period stream precipitation surface soak circulate meteoric groundwater abundant