职称英语理工类考试考前每日一练(28)
<p> 职称英语理工类考试考前每日一练</p><p> 下面的短文后有2项测试任务：第23-26题要求从所给的6个选项中为第<span word="l">l</span>-4段每段选择1个最佳标题;第27～30题要求从所给的6个选项中为每个句子确定1个最佳选项。</p><p> <span word="Teach">Teach</span> <span word="Your">Your</span> <span word="Chlld">Chlld</span> <span word="Sclence">Sclence</span></p><p> 1 <span word="It">It</span> <span word="is">is</span> <span word="important">important</span> <span word="to">to</span> <span word="make">make</span> <span word="your">your</span> <span word="child">child</span> <span word="interested">interested</span> <span word="in">in</span> <span word="science">science</span> <span word="from">from</span> <span word="an">an</span> <span word="early">early</span> <span word="age">age</span>. <span word="Most">Most</span> <span word="young">young</span> <span word="children">children</span> <span word="ask">ask</span> <span word="a">a</span> <span word="lot">lot</span> <span word="of">of</span> <span word="questions">questions</span> <span word="and">and</span> <span word="you">you</span> <span word="should">should</span> <span word="give">give</span> <span word="careful">careful</span> <span word="scientific">scientific</span> <span word="answers">answers</span>. <span word="Dont">Dont</span> <span word="only">only</span> <span word="give">give</span> <span word="facts">facts</span>, <span word="but">but</span> <span word="try">try</span> <span word="to">to</span> <span word="give">give</span> <span word="explanations">explanations</span> <span word="as">as</span> <span word="well">well</span>.</p><p> 2 <span word="Science">Science</span> <span word="is">is</span> <span word="not">not</span> <span word="just">just</span> <span word="knowledge">knowledge</span>; <span word="it">it</span> <span word="is">is</span> <span word="a">a</span> <span word="way">way</span> <span word="of">of</span> <span word="thinking">thinking</span>, <span word="a">a</span> <span word="method">method</span> <span word="of">of</span> <span word="finding">finding</span> <span word="out">out</span> <span word="aboutthe">aboutthe</span> <span word="world">world</span>. <span word="We">We</span> <span word="see">see</span> <span word="something">something</span>. <span word="We">We</span> <span word="try">try</span> <span word="to">to</span> <span word="explain">explain</span> <span word="it">it</span>, <span word="and">and</span> <span word="we">we</span> <span word="test">test</span> <span word="our">our</span> <span word="idea">idea</span> <span word="by">by</span> <span word="setting">setting</span> <span word="up">up</span> <span word="an">an</span> <span word="experiment">experiment</span>. <span word="One">One</span> <span word="day">day</span> <span word="you">you</span> <span word="come">come</span> <span word="home">home</span> <span word="and">and</span> <span word="find">find</span> <span word="the">the</span> <span word="plant">plant</span> <span word="on">on</span> <span word="the">the</span> <span word="table">table</span> <span word="has">has</span> <span word="fallen">fallen</span> <span word="over">over</span>. <span word="You">You</span> <span word="think">think</span> <span word="it">it</span> <span word="might">might</span> <span word="be">be</span> <span word="the">the</span> <span word="wind">wind</span> <span word="from">from</span> <span word="the">the</span> <span word="open">open</span> <span word="window">window</span> <span word="or">or</span> <span word="the">the</span> <span word="cat">cat</span>, <span word="so">so</span> <span word="you">you</span> <span word="close">close</span> <span word="the">the</span> <span word="window">window</span>, <span word="but">but</span> <span word="leave">leave</span> <span word="the">the</span> <span word="cat">cat</span> <span word="in">in</span> <span word="and">and</span> <span word="see">see</span> <span word="what">what</span> <span word="happens">happens</span> . <span word="Of">Of</span> <span word="course">course</span>, <span word="you">you</span> <span word="remember">remember</span> <span word="there">there</span> <span word="may">may</span> <span word="be">be</span> <span word="a">a</span> <span word="third">third</span> <span word="explanation">explanation</span>.</p><p> 3 <span word="Ask">Ask</span> <span word="your">your</span> <span word="child">child</span> <span word="to">to</span> <span word="get">get</span> <span word="a">a</span> <span word="piece">piece</span> <span word="of">of</span> <span word="string">string</span>, <span word="some">some</span> <span word="salt">salt</span>, <span word="a">a</span> <span word="glass">glass</span> <span word="of">of</span> <span word="water">water</span> <span word="and">and</span> <span word="an">an</span> <span word="ice">ice</span> <span word="cube">cube</span> . <span word="Tell">Tell</span> <span word="her">her</span> <span word="to">to</span> <span word="put">put</span> <span word="the">the</span> <span word="ice">ice</span> <span word="in">in</span> <span word="the">the</span> <span word="water">water</span>, <span word="and">and</span> <span word="then">then</span> <span word="put">put</span> <span word="one">one</span> <span word="end">end</span> <span word="of">of</span> <span word="the">the</span> <span word="string">string</span> <span word="on">on</span> <span word="the">the</span> <span word="ice">ice</span>,<span word="leaving">leaving</span> <span word="the">the</span> <span word="other">other</span> <span word="end">end</span> <span word="over">over</span> <span word="the">the</span> <span word="side">side</span> <span word="of">of</span> <span word="the">the</span> <span word="glass">glass</span>. <span word="Put">Put</span> <span word="a">a</span> <span word="little">little</span> <span word="salt">salt</span> <span word="on">on</span> <span word="the">the</span> <span word="ice">ice</span>. <span word="Wait">Wait</span> <span word="a">a</span> <span word="minute">minute</span>,<span word="and">and</span> <span word="then">then</span> <span word="pull">pull</span> <span word="the">the</span> <span word="string">string</span>; <span word="it">it</span> <span word="should">should</span> <span word="be">be</span> <span word="attached">attached</span> <span word="to">to</span> <span word="the">the</span> <span word="ice">ice</span>. <span word="Ask">Ask</span> <span word="the">the</span> <span word="child">child</span>: <span word="What">What</span> <span word="has">has</span> <span word="happened">happened</span>?</p><p> 4 <span word="Probably">Probably</span> <span word="she">she</span> <span word="wont">wont</span> <span word="know">know</span>. <span word="Ask">Ask</span> <span word="her">her</span> <span word="whether">whether</span> <span word="fresh">fresh</span> <span word="water">water</span> <span word="or">or</span> <span word="salt">salt</span> <span word="water">water</span> <span word="freezes">freezes</span> <span word="into">into</span> <span word="ice">ice</span> <span word="first">first</span>. <span word="If">If</span> <span word="you">you</span> <span word="live">live</span> <span word="near">near</span> <span word="the">the</span> <span word="sea">sea</span> <span word="and">and</span> <span word="have">have</span> <span word="a">a</span> <span word="cold">cold</span> <span word="winter">winter</span>, <span word="she">she</span> <span word="should">should</span> <span word="know">know</span> <span word="fresh">fresh</span> <span word="water">water</span> <span word="freezes">freezes</span> <span word="first">first</span> <span word="as">as</span> <span word="she">she</span> <span word="will">will</span> <span word="have">have</span> <span word="seen">seen</span> <span word="that">that</span> <span word="happen">happen</span>. <span word="Show">Show</span> <span word="her">her</span> <span word="how">how</span> <span word="to">to</span> <span word="test">test</span> <span word="the">the</span> <span word="idea">idea</span> <span word="by">by</span> <span word="half">half</span>-<span word="filling">filling</span> <span word="two">two</span> <span word="paper">paper</span> <span word="cups">cups</span> <span word="with">with</span> <span word="water">water</span>, <span word="adding">adding</span> <span word="salt">salt</span> <span word="to">to</span> <span word="one">one</span>. <span word="Then">Then</span> <span word="put">put</span> <span word="them">them</span> <span word="in">in</span> <span word="the">the</span> <span word="icebox">icebox</span> <span word="and">and</span> <span word="check">check</span> <span word="every">every</span> <span word="three">three</span> <span word="minutes">minutes</span>. <span word="Write">Write</span> <span word="the">the</span> <span word="results">results</span> <span word="in">in</span> <span word="a">a</span> <span word="table">table</span>. <span word="The">The</span> <span word="conclusion">conclusion</span> <span word="will">will</span> <span word="be">be</span> <span word="that">that</span> <span word="salt">salt</span> <span word="changes">changes</span> <span word="the">the</span> <span word="behaviour">behaviour</span> <span word="of">of</span> <span word="water">water</span>. <span word="Thinking">Thinking</span> <span word="about">about</span> <span word="the">the</span> <span word="string">string</span>, <span word="we">we</span> <span word="see">see</span> <span word="the">the</span> <span word="salt">salt</span> <span word="turned">turned</span> <span word="some">some</span> <span word="of">of</span> <span word="the">the</span> <span word="ice">ice</span> <span word="into">into</span> <span word="water">water</span>. <span word="Then">Then</span> <span word="tho">tho</span> <span word="salt">salt</span> <span word="wont">wont</span> <span word="away">away</span> <span word="into">into</span> <span word="the">the</span> <span word="water">water</span> <span word="and">and</span> <span word="the">the</span> <span word="ice">ice</span> <span word="froze">froze</span> <span word="again">again</span> <span word="leaving">leaving</span> <span word="the">the</span> <span word="string">string</span> <span word="attached">attached</span>.</p>
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