英语六级阅读题型复习必备专项练习题(5)
<p> <span word="Merchant">Merchant</span> <span word="and">and</span> <span word="passenger">passenger</span> <span word="ships">ships</span> <span word="are">are</span> <span word="generally">generally</span> <span word="required">required</span> <span word="to">to</span> <span word="have">have</span> <span word="a">a</span> <span word="life">life</span> <span word="preserver">preserver</span> <span word="for">for</span> <span word="every">every</span> <span word="person">person</span> <span word="aboard">aboard</span> <span word="and">and</span>, <span word="in">in</span> <span word="many">many</span> <span word="cases">cases</span>, <span word="a">a</span> <span word="certain">certain</span> <span word="percentage">percentage</span> <span word="of">of</span> <span word="smaller">smaller</span> <span word="sizes">sizes</span> <span word="for">for</span> <span word="children">children</span>. <span word="According">According</span> <span word="to">to</span> <span word="United">United</span> <span word="States">States</span> <span word="Coast">Coast</span> <span word="Guard">Guard</span> <span word="requirements">requirements</span>, <span word="life">life</span> <span word="preservers">preservers</span> <span word="must">must</span> <span word="be">be</span> <span word="simple">simple</span> <span word="in">in</span> <span word="design">design</span>, <span word="reversible">reversible</span>, <span word="capable">capable</span> <span word="of">of</span> <span word="being">being</span> <span word="quickly">quickly</span> <span word="adjusted">adjusted</span> <span word="to">to</span> <span word="fit">fit</span> <span word="the">the</span> <span word="uninitiated">uninitiated</span> <span word="individual">individual</span>, <span word="and">and</span> <span word="must">must</span> <span word="be">be</span> <span word="so">so</span> <span word="designed">designed</span> <span word="as">as</span> <span word="to">to</span> <span word="support">support</span> <span word="the">the</span> <span word="wearer">wearer</span> <span word="in">in</span> <span word="the">the</span> <span word="water">water</span> <span word="in">in</span> <span word="an">an</span> <span word="upright">upright</span> <span word="or">or</span> <span word="slightly">slightly</span> <span word="backward">backward</span> <span word="position">position</span>.</p><p> <span word="Sufficient">Sufficient</span> <span word="buoyancy">buoyancy</span> <span word="to">to</span> <span word="support">support</span> <span word="the">the</span> <span word="wearer">wearer</span> <span word="should">should</span> <span word="be">be</span> <span word="retained">retained</span> <span word="by">by</span> <span word="the">the</span> <span word="life">life</span> <span word="preserver">preserver</span> <span word="after">after</span> 48 <span word="hour">hour</span> <span word="in">in</span> <span word="the">the</span> <span word="water">water</span>, <span word="and">and</span> <span word="it">it</span> <span word="should">should</span> <span word="be">be</span> <span word="reliable">reliable</span> <span word="even">even</span> <span word="after">after</span> <span word="long">long</span> <span word="period">period</span> <span word="of">of</span> <span word="storage">storage</span>. <span word="Thus">Thus</span> <span word="it">it</span> <span word="should">should</span> <span word="be">be</span> <span word="made">made</span> <span word="of">of</span> <span word="materials">materials</span> <span word="resistant">resistant</span> <span word="to">to</span> <span word="sunlight">sunlight</span>, <span word="gasoline">gasoline</span>, <span word="and">and</span> <span word="oils">oils</span>, <span word="and">and</span> <span word="it">it</span> <span word="should">should</span> <span word="be">be</span> <span word="not">not</span> <span word="easily">easily</span> <span word="set">set</span> <span word="on">on</span> <span word="fire">fire</span>.</p><p> <span word="The">The</span> <span word="position">position</span> <span word="in">in</span> <span word="which">which</span> <span word="the">the</span> <span word="life">life</span> <span word="preserver">preserver</span> <span word="will">will</span> <span word="support">support</span> <span word="a">a</span> <span word="person">person</span> <span word="who">who</span> <span word="jumps">jumps</span> <span word="or">or</span> <span word="falls">falls</span> <span word="into">into</span> <span word="the">the</span> <span word="water">water</span> <span word="is">is</span> <span word="most">most</span> <span word="important">important</span>, <span word="as">as</span> <span word="is">is</span> <span word="its">its</span> <span word="tendency">tendency</span> <span word="to">to</span> <span word="turn">turn</span> <span word="the">the</span> <span word="wearer">wearer</span> <span word="in">in</span> <span word="the">the</span> <span word="water">water</span> <span word="from">from</span> <span word="a">a</span> <span word="face">face</span>-<span word="down">down</span> <span word="position">position</span> <span word="to">to</span> <span word="an">an</span> <span word="upright">upright</span> <span word="or">or</span> <span word="slightly">slightly</span> <span word="backward">backward</span> <span word="position">position</span>, <span word="with">with</span> <span word="his">his</span> <span word="face">face</span> <span word="clear">clear</span> <span word="of">of</span> <span word="the">the</span> <span word="water">water</span>, <span word="even">even</span> <span word="when">when</span> <span word="the">the</span> <span word="wearer">wearer</span> <span word="is">is</span> <span word="exhausted">exhausted</span> <span word="or">or</span> <span word="unconscious">unconscious</span>.</p><p> <span word="The">The</span> <span word="method">method</span> <span word="of">of</span> <span word="adjustment">adjustment</span> <span word="to">to</span> <span word="the">the</span> <span word="body">body</span> <span word="should">should</span> <span word="be">be</span> <span word="simple">simple</span>, <span word="and">and</span> <span word="self">self</span>-<span word="evident">evident</span> <span word="to">to</span> <span word="uninitiated">uninitiated</span> <span word="persons">persons</span> <span word="even">even</span> <span word="in">in</span> <span word="the">the</span> <span word="dark">dark</span> <span word="under">under</span> <span word="the">the</span> <span word="confused">confused</span> <span word="conditions">conditions</span> <span word="which">which</span> <span word="follow">follow</span> <span word="a">a</span> <span word="disaster">disaster</span>. <span word="Thus">Thus</span>, <span word="the">the</span> <span word="life">life</span> <span word="preserver">preserver</span> <span word="should">should</span> <span word="be">be</span> <span word="reversible">reversible</span>, <span word="so">so</span> <span word="that">that</span> <span word="it">it</span> <span word="is">is</span> <span word="nearly">nearly</span> <span word="impossible">impossible</span> <span word="to">to</span> <span word="set">set</span> <span word="it">it</span> <span word="on">on</span> <span word="wrong">wrong</span>. <span word="Catches">Catches</span>, <span word="straps">straps</span>, <span word="and">and</span> <span word="ties">ties</span> <span word="should">should</span> <span word="be">be</span> <span word="kept">kept</span> <span word="to">to</span> <span word="a">a</span> <span word="minimum">minimum</span>. <span word="In">In</span> <span word="addition">addition</span>, <span word="the">the</span> <span word="life">life</span> <span word="preserver">preserver</span> <span word="must">must</span> <span word="be">be</span> <span word="adjustable">adjustable</span> <span word="to">to</span> <span word="the">the</span> <span word="wide">wide</span> <span word="variety">variety</span> <span word="of">of</span> <span word="shapes">shapes</span> <span word="and">and</span> <span word="sizes">sizes</span> <span word="of">of</span> <span word="wearers">wearers</span>, <span word="since">since</span> <span word="this">this</span> <span word="greatly">greatly</span> <span word="affects">affects</span> <span word="the">the</span> <span word="position">position</span> <span word="of">of</span> <span word="floating">floating</span> <span word="and">and</span> <span word="the">the</span> <span word="self">self</span>-<span word="righting">righting</span> <span word="qualities">qualities</span>. <span word="A">A</span> <span word="suitable">suitable</span> <span word="life">life</span> <span word="preserver">preserver</span> <span word="should">should</span> <span word="also">also</span> <span word="be">be</span> <span word="comfortable">comfortable</span> <span word="to">to</span> <span word="wear">wear</span> <span word="at">at</span> <span word="all">all</span> <span word="times">times</span>, <span word="in">in</span> <span word="and">and</span> <span word="out">out</span> <span word="of">of</span> <span word="the">the</span> <span word="water">water</span>, <span word="not">not</span> <span word="so">so</span> <span word="heavy">heavy</span> <span word="as">as</span> <span word="to">to</span> <span word="encourage">encourage</span> <span word="to">to</span> <span word="take">take</span> <span word="it">it</span> <span word="off">off</span> <span word="on">on</span> <span word="shipboard">shipboard</span> <span word="while">while</span> <span word="the">the</span> <span word="ship">ship</span> <span word="is">is</span> <span word="in">in</span> <span word="danger">danger</span>, <span word="nor">nor</span> <span word="so">so</span> <span word="burdensome">burdensome</span> <span word="that">that</span> <span word="it">it</span> <span word="hinders">hinders</span> <span word="a">a</span> <span word="person">person</span> <span word="in">in</span> <span word="the">the</span> <span word="water">water</span> <span word="while">while</span> <span word="trying">trying</span> <span word="to">to</span> <span word="swim">swim</span>.</p>
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