新GRE逻辑阅读 每日一练32
<p> 编辑点评： <span word="GRE">GRE</span>阅读考试的材料，非常强调逻辑的关系，所以逻辑要点是大家在解<span word="GRE">GRE</span>阅读题的时候的关键，本文就为大家例举了这样一篇逻辑短文，供大家参考和练习。</p><p> 随着<span word="GRE">GRE</span>阅读考试的难度日益增加，大家需要有针对性地进行练习，本文为大家例举的就是逻辑短文的练习，文末还附有答案，供大家更好地练习。</p><p> <span word="The">The</span> <span word="determination">determination</span> <span word="of">of</span> <span word="the">the</span> <span word="sources">sources</span> <span word="of">of</span> <span word="copper">copper</span> <span word="ore">ore</span> <span word="used">used</span> <span word="in">in</span> <span word="the">the</span> <span word="manufacture">manufacture</span> <span word="of">of</span> <span word="copper">copper</span> <span word="and">and</span> <span word="bronze">bronze</span> <span word="artifacts">artifacts</span> <span word="of">of</span> <span word="Bronze">Bronze</span> <span word="Age">Age</span> <span word="civilizations">civilizations</span> <span word="would">would</span> <span word="add">add</span> <span word="greatly">greatly</span> <span word="to">to</span> <span word="our">our</span> <span word="knowledge">knowledge</span> <span word="of">of</span> <span word="cultural">cultural</span> <span word="contacts">contacts</span> <span word="and">and</span> <span word="trade">trade</span> <span word="in">in</span> <span word="that">that</span> <span word="era">era</span>. <span word="Researchers">Researchers</span> <span word="have">have</span> 5 <span word="analyzed">analyzed</span> <span word="artifacts">artifacts</span> <span word="and">and</span> <span word="ores">ores</span> <span word="for">for</span> <span word="their">their</span> <span word="concentrations">concentrations</span> <span word="of">of</span> <span word="elements">elements</span>, <span word="but">but</span> <span word="for">for</span> <span word="a">a</span> <span word="variety">variety</span> <span word="of">of</span> <span word="reasons">reasons</span>, <span word="these">these</span> <span word="studies">studies</span> <span word="have">have</span> <span word="generally">generally</span> <span word="failed">failed</span> <span word="to">to</span> <span word="provide">provide</span> <span word="evidence">evidence</span> <span word="of">of</span> <span word="the">the</span> <span word="sources">sources</span> <span word="of">of</span> <span word="the">the</span> <span word="copper">copper</span> <span word="used">used</span> <span word="in">in</span> <span word="the">the</span> <span word="objects">objects</span>. <span word="Elemental">Elemental</span> <span word="composition">composition</span> <span word="can">can</span> <span word="vary">vary</span> <span word="within">within</span> <span word="the">the</span> <span word="same">same</span> <span word="copper">copper</span>-<span word="ore">ore</span> <span word="lode">lode</span>, <span word="usually">usually</span> <span word="because">because</span> <span word="of">of</span> <span word="varying">varying</span> <span word="admixtures">admixtures</span> <span word="of">of</span> 10 <span word="other">other</span> <span word="elements">elements</span>, <span word="especially">especially</span> <span word="iron">iron</span>, <span word="lead">lead</span>, <span word="zinc">zinc</span>, <span word="and">and</span> <span word="arsenic">arsenic</span>. <span word="And">And</span> <span word="high">high</span> <span word="concentrations">concentrations</span> <span word="of">of</span> <span word="cobalt">cobalt</span> <span word="or">or</span> <span word="zinc">zinc</span>, <span word="noticed">noticed</span> <span word="in">in</span> <span word="some">some</span> <span word="artifacts">artifacts</span>,<span word="appear">appear</span> <span word="in">in</span> <span word="a">a</span> <span word="variety">variety</span> <span word="of">of</span> <span word="copper">copper</span>-<span word="ore">ore</span> <span word="sources">sources</span>. <span word="Moreover">Moreover</span>, <span word="the">the</span> <span word="processing">processing</span> <span word="of">of</span> <span word="ores">ores</span> <span word="introduced">introduced</span> <span word="poorly">poorly</span> <span word="controlled">controlled</span> <span word="changes">changes</span> <span word="in">in</span> <span word="the">the</span> <span word="concentrations">concentrations</span> <span word="of">of</span> <span word="minor">minor</span> <span word="and">and</span> <span word="trace">trace</span> <span word="elements">elements</span> <span word="in">in</span> <span word="the">the</span> 15 <span word="resulting">resulting</span> <span word="metal">metal</span>. <span word="Some">Some</span> <span word="elements">elements</span> <span word="evaporate">evaporate</span> <span word="during">during</span> <span word="smelting">smelting</span> <span word="and">and</span> <span word="roasting">roasting</span>; <span word="different">different</span> <span word="temperatures">temperatures</span> <span word="and">and</span> <span word="processes">processes</span> <span word="produce">produce</span> <span word="different">different</span> <span word="degrees">degrees</span> <span word="of">of</span> <span word="loss">loss</span>. <span word="Finally">Finally</span>, <span word="flux">flux</span>, <span word="which">which</span> <span word="is">is</span> <span word="sometimes">sometimes</span> <span word="added">added</span> <span word="during">during</span> <span word="smelting">smelting</span> <span word="to">to</span> <span word="remove">remove</span> <span word="waste">waste</span> <span word="material">material</span> <span word="from">from</span> <span word="the">the</span> <span word="ore">ore</span>, <span word="could">could</span> <span word="add">add</span> <span word="quantities">quantities</span> <span word="of">of</span> <span word="elements">elements</span> <span word="to">to</span> <span word="the">the</span> <span word="final">final</span> <span word="product">product</span>.</p>
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