雅思小作文真题范文：砖块的制作
<p> <span word="The">The</span> <span word="process">process</span> <span word="by">by</span> <span word="which">which</span> <span word="bricks">bricks</span> <span word="are">are</span> <span word="manufactured">manufactured</span> <span word="for">for</span> <span word="the">the</span> <span word="building">building</span> <span word="industry">industry</span> <span word="can">can</span> <span word="be">be</span> <span word="outlined">outlined</span> <span word="in">in</span> <span word="seven">seven</span> <span word="consecutive">consecutive</span> <span word="steps">steps</span>. <span word="First">First</span> <span word="the">the</span> <span word="raw">raw</span> <span word="material">material</span>, <span word="clay">clay</span>, <span word="which">which</span> <span word="was">was</span> <span word="just">just</span> <span word="below">below</span> <span word="the">the</span> <span word="surface">surface</span> <span word="of">of</span> <span word="soil">soil</span> <span word="in">in</span> <span word="certain">certain</span> <span word="clay">clay</span>-<span word="rich">rich</span> <span word="areas">areas</span> <span word="has">has</span> <span word="to">to</span> <span word="be">be</span> <span word="dug">dug</span> <span word="up">up</span> <span word="by">by</span> <span word="a">a</span> <span word="digger">digger</span>.</p><p> <span word="Then">Then</span> <span word="the">the</span> <span word="lumps">lumps</span> <span word="of">of</span> <span word="clay">clay</span> <span word="are">are</span> <span word="placed">placed</span> <span word="on">on</span> <span word="a">a</span> <span word="metal">metal</span> <span word="grid">grid</span> <span word="in">in</span> <span word="order">order</span> <span word="to">to</span> <span word="break">break</span> <span word="up">up</span> <span word="the">the</span> <span word="big">big</span> <span word="chunks">chunks</span> <span word="of">of</span> <span word="clay">clay</span> <span word="into">into</span> <span word="much">much</span> <span word="smaller">smaller</span> <span word="areas">areas</span>, <span word="which">which</span> <span word="fall">fall</span> <span word="through">through</span> <span word="the">the</span> <span word="metal">metal</span> <span word="grid">grid</span> <span word="onto">onto</span> <span word="a">a</span> <span word="roller">roller</span>, <span word="whose">whose</span> <span word="motion">motion</span> <span word="further">further</span> <span word="segregates">segregates</span> <span word="the">the</span> <span word="bits">bits</span> <span word="of">of</span> <span word="clay">clay</span>. <span word="Sand">Sand</span> <span word="and">and</span> <span word="water">water</span> <span word="are">are</span> <span word="added">added</span> <span word="to">to</span> <span word="make">make</span> <span word="a">a</span> <span word="homogenous">homogenous</span> <span word="mixture">mixture</span>, <span word="which">which</span> <span word="is">is</span> <span word="then">then</span> <span word="either">either</span> <span word="formed">formed</span> <span word="in">in</span> <span word="moulds">moulds</span> <span word="or">or</span> <span word="cut">cut</span> <span word="into">into</span> <span word="brick">brick</span>-<span word="shaped">shaped</span> <span word="pieces">pieces</span> <span word="by">by</span> <span word="means">means</span> <span word="of">of</span> <span word="a">a</span> <span word="wire">wire</span> <span word="cutter">cutter</span>.</p><p> <span word="Those">Those</span> <span word="fresh">fresh</span> <span word="bricks">bricks</span> <span word="are">are</span> <span word="then">then</span> <span word="kept">kept</span> <span word="in">in</span> <span word="a">a</span> <span word="drying">drying</span> <span word="oven">oven</span> <span word="for">for</span> <span word="at">at</span> <span word="least">least</span> 24 <span word="and">and</span> <span word="a">a</span> <span word="maximum">maximum</span> <span word="of">of</span> 48 <span word="hours">hours</span>, <span word="several">several</span> <span word="dozens">dozens</span> <span word="if">if</span> <span word="not">not</span> <span word="hundreds">hundreds</span> <span word="of">of</span> <span word="bricks">bricks</span> <span word="at">at</span> <span word="a">a</span> <span word="time">time</span>. <span word="The">The</span> <span word="dried">dried</span> <span word="bricks">bricks</span> <span word="are">are</span> <span word="then">then</span> <span word="transferred">transferred</span> <span word="to">to</span> <span word="a">a</span> <span word="so">so</span>-<span word="called">called</span> <span word="kiln">kiln</span>, <span word="another">another</span> <span word="type">type</span> <span word="of">of</span> <span word="high">high</span> <span word="temperature">temperature</span> <span word="oven">oven</span>. <span word="First">First</span> <span word="they">they</span> <span word="are">are</span> <span word="kept">kept</span> <span word="at">at</span> <span word="a">a</span> <span word="moderate">moderate</span> <span word="temperature">temperature</span> <span word="of">of</span> 200 ℃ -1300 ℃ . <span word="This">This</span> <span word="process">process</span> <span word="is">is</span> <span word="followed">followed</span> <span word="by">by</span> <span word="cooling">cooling</span> <span word="down">down</span> <span word="the">the</span> <span word="finished">finished</span> <span word="bricks">bricks</span> <span word="for">for</span> 48 <span word="to">to</span> 72 <span word="hours">hours</span> <span word="in">in</span> <span word="a">a</span> <span word="cooling">cooling</span> <span word="chamber">chamber</span>.</p><p> <span word="Once">Once</span> <span word="the">the</span> <span word="bricks">bricks</span> <span word="have">have</span> <span word="cooled">cooled</span> <span word="down">down</span> <span word="and">and</span> <span word="have">have</span> <span word="become">become</span> <span word="hard">hard</span>, <span word="they">they</span> <span word="get">get</span> <span word="packaged">packaged</span> <span word="and">and</span> <span word="delivered">delivered</span> <span word="to">to</span> <span word="their">their</span> <span word="final">final</span> <span word="destination">destination</span>, <span word="be">be</span> <span word="it">it</span> <span word="a">a</span> <span word="building">building</span> <span word="site">site</span> <span word="or">or</span> <span word="storage">storage</span>.</p><p> </p>
页:
[1]