TOEFL词汇营疯狂自测-1

4. To explain this sudden increase we cannot point to factorsconstant in Chinese society but must find conditions or a combination of factors that were newly effective in this period.The word constant in the passage is closest in meaning to

48. A stream deposits its sediment in three environments: Alluvial fans and deltas form where stream gradient (angle of incline) suddenly decreases as a stream enters a flat plain, a lake, or the sea; floodplain depositsaccumulateon a floodplain adjacent to the stream channel; and channel deposits form in the stream channel itself.The word accumulate in the passage is closest in meaning to

73. Hence, the very nature of the initial slash-and-burn agriculture encouraged afurther dependence on agriculture and the aggregation of people intodenser settlements. Theword denser in the passage iscloset in meaning to

96. The cooing of doves and the crowing of cocks are examples here. In other cases, such as parrots and hill mynahs, birds can be trained to copy a huge variety of sounds, though those they learn in the wild are usually more restricted. The word restricted in the passage is closest in meaning to

101.Some meteorites consist of rocky material and, accordingly, are called stony meteorites.The word “accordingly” in the passage is closet in meaning to