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外语
The cells(电池)were designed to ______ sunshine to electricity to run a motor.
The cells(电池)were designed to ______ sunshine to electricity to run a motor.
admin
2011-06-29
44
问题
The cells(电池)were designed to ______ sunshine to electricity to run a motor.
选项
A、convert
B、alter
C、modify
D、exchange
答案
A
解析
本题是说这种电池被设计成把太阳能转化为电能来驱动马达。A项中,convert(into/to)v. (使)转变为,(使)转化为(如to convert cotton into cloth;to convert defeat into victory;to convert water into steam;This seat converts easily into a bed),符合题意。其他三项中,alter vt.“改变,变更”(直接跟宾语,不跟介词to/into);modify vt.“修改,更改”(不跟介词to/into);exchange(for) vt.“交换,调换”(exchange A for B“用A交换B”;exchange seats with sb.“与某人交换座位”),都与题意不符。
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