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1、四级高频词汇表使用说明每周学习背诵70个，前十周背完听写过关，占平时成绩20分组学习单词学习法alterThese clothes are too large;they must be altered.这些衣服太大，得修改。The design of the electric circuits of the digit-controlled lathe must be altered to meet the new requirement.这台数控机床的电路设计必须改动,以适应新的要求。The weather alters almost daily.天气几乎天天变化。同义词change扩展al
2、terability 可变性alterable 可改变的 alterably形近词 alternative alternatedispose（常与to连用）有倾向；有意于The low salary did not dispose him to accept the position.菲薄的待遇使他不想接受这项工作。安排；排列；安放I have disposed of my old clothes.我已处理了我的旧衣服。Man proposes.God disposes.谋事在人，成事在天。We have to dispose of this pile of old papers and magazines.我们得把这堆旧报纸和杂志处理掉。disposition性格倾向The twin sisters have a happy disposition.这一对孪生姐妹有一种乐天的性格。the disposition of sugar to dissolve in water糖易溶于水中的特性disposition of the deceaseds property.对死者财产的处理