雅思必考词汇（针对四级已过同学）词汇表

valid upgrade undertake trial transform territory temporary temporal temperate sketch skeleton shuttle shrink shallow sequence sensation secure seal scout rotate resolve rental renaissance remedy regulate plough pleasurable pilot pillar phrase photosynthesis physically panel perceive pendulum ozone orthodox organic orchestra optimism observer nutrient nurture notion myth motivation moral modify minimize migrate liquid leaflet layout landmark keen joint insight initiate industrialise induce incidence impose imbalance illustration illiterate identical essence enterprise enhance encounter emotion element electronic ecology echo ease fancy extract external extend expose expand discard disaster diminish destination derive deprive depict depart deliver deduce communal commodity click civil cite chronic cereal celebration cast capable burial bubble brilliant booklet bend beam attribute appreciation batch appeal apparent anticipate aircraft advent administration adjust adequate activate accelerate settler session senior seminar sediment sector seasonal sculpture scheme salary royal route reverse reveal internal consult constant concentrate compound component complicated column colleague code circumstance award available assumption associate assist assign assess artificial arrange arise Arctic architect archaeology appropriate approach applicant anthropology analyse amazing alter witness voyage vertical vegetation trait therapy switch strategy spectacular specimen species span situated silent shelter restrict resemble represent replicate replace repeat removal recommend random questionnaire quantity purchase psychological proposal proportion phase pharmaceutical pest personnel mould mortality module marine maintain label juvenile intense intelligent integrate insurance institute install ingredient indigenous incentive ignore habitat guarantee gross genius generate gene gear fundamental freight frame fragile foundation forage fiction exhibit executive eventually equivalent engage endanger emphasise eliminate efficient economic cure couple corridor corpus corporate convince contrast continuous contemporary