2015职称英语考试《理工类》B级阅读理解专项提分练习题(3)
<p> <span word="Using">Using</span> <span word="HIV">HIV</span> <span word="Virus">Virus</span> <span word="to">to</span> <span word="Cure">Cure</span> <span word="Cancer">Cancer</span></p><p> <span word="Scientists">Scientists</span> <span word="are">are</span> <span word="planning">planning</span> <span word="to">to</span> <span word="use">use</span> <span word="human">human</span> <span word="immunodeficiencyvirus">immunodeficiencyvirus</span>, <span word="one">one</span> <span word="of">of</span> <span word="mankinds">mankinds</span> <span word="most">most</span> <span word="feared">feared</span> <span word="viruses">viruses</span>, <span word="as">as</span> <span word="a">a</span> <span word="carrier">carrier</span> <span word="of">of</span> <span word="genes">genes</span> <span word="which">which</span> <span word="can">can</span> <span word="fight">fight</span> <span word="cancer">cancer</span> <span word="and">and</span> <span word="a">a</span> <span word="range">range</span> <span word="of">of</span> <span word="diseases">diseases</span> <span word="that">that</span> <span word="cannot">cannot</span> <span word="be">be</span> <span word="cured">cured</span>. <span word="The">The</span> <span word="experts">experts</span> <span word="say">say</span> <span word="HIV">HIV</span> <span word="has">has</span> <span word="an">an</span> <span word="almost">almost</span> <span word="perfect">perfect</span> <span word="ability">ability</span> <span word="to">to</span> <span word="avoid">avoid</span> <span word="the">the</span> <span word="bodys">bodys</span> <span word="immunedefenses">immunedefenses</span>, <span word="making">making</span> <span word="it">it</span> <span word="ideal">ideal</span> <span word="for">for</span> <span word="carrying">carrying</span> <span word="replacement">replacement</span> <span word="genes">genes</span> <span word="into">into</span> <span word="patients">patients</span> <span word="bodies">bodies</span>, <span word="according">according</span> <span word="to">to</span> <span word="the">the</span> <span word="Observer">Observer</span>.</p><p> <span word="A">A</span> <span word="team">team</span> <span word="at">at</span> <span word="the">the</span> <span word="California">California</span>-<span word="based">based</span> <span word="Salk">Salk</span> <span word="Institute">Institute</span>, <span word="one">one</span> <span word="of">of</span> <span word="the">the</span> <span word="worlds">worlds</span> <span word="leading">leading</span> <span word="research">research</span> <span word="centers">centers</span> <span word="on">on</span> <span word="biological">biological</span> <span word="sciences">sciences</span>, <span word="has">has</span> <span word="created">created</span> <span word="a">a</span> <span word="special">special</span> <span word="new">new</span> <span word="breed">breed</span> <span word="of">of</span> <span word="HIV">HIV</span> <span word="and">and</span> <span word="has">has</span> <span word="started">started</span> <span word="negotiations">negotiations</span> <span word="with">with</span> <span word="the">the</span> <span word="US">US</span> <span word="Food">Food</span> <span word="and">and</span> <span word="Drug">Drug</span> <span word="Administrationto">Administrationto</span> <span word="begin">begin</span> <span word="clinical">clinical</span> <span word="gene">gene</span> <span word="therapy">therapy</span> <span word="trials">trials</span> <span word="this">this</span> <span word="year">year</span>. <span word="The">The</span> <span word="first">first</span> <span word="trials">trials</span> <span word="are">are</span> <span word="expected">expected</span> <span word="to">to</span> <span word="involve">involve</span> <span word="patients">patients</span> <span word="suffering">suffering</span> <span word="from">from</span> <span word="cancers">cancers</span> <span word="that">that</span> <span word="cannot">cannot</span> <span word="be">be</span> <span word="cured">cured</span> <span word="by">by</span> <span word="surgery">surgery</span> <span word="although">although</span> <span word="project">project</span> <span word="leader">leader</span> <span word="Professor">Professor</span> <span word="Inder">Inder</span> <span word="Verma">Verma</span> <span word="said">said</span> <span word="the">the</span> <span word="HIV">HIV</span> <span word="technique">technique</span> <span word="would">would</span> <span word="have">have</span> <span word="far">far</span> <span word="wider">wider</span> <span word="applications">applications</span>.</p><p> <span word="The">The</span> <span word="plan">plan</span> <span word="remains">remains</span> <span word="very">very</span> <span word="likely">likely</span> <span word="to">to</span> <span word="cause">cause</span> <span word="controversy">controversy</span> <span word="since">since</span> <span word="it">it</span> <span word="involves">involves</span> <span word="making">making</span> <span word="use">use</span> <span word="of">of</span> <span word="a">a</span> <span word="virus">virus</span> <span word="which">which</span> <span word="has">has</span> <span word="caused">caused</span> <span word="more">more</span> <span word="than">than</span> 22 <span word="million">million</span> <span word="deaths">deaths</span> <span word="around">around</span> <span word="the">the</span> <span word="world">world</span> <span word="in">in</span> <span word="the">the</span> <span word="past">past</span> <span word="two">two</span> <span word="decades">decades</span>. <span word="Verma">Verma</span> <span word="said">said</span> <span word="that">that</span> <span word="the">the</span> <span word="idea">idea</span> <span word="of">of</span> <span word="using">using</span> <span word="HIV">HIV</span> <span word="for">for</span> <span word="a">a</span> <span word="beneficial">beneficial</span> <span word="purpose">purpose</span> <span word="was">was</span> <span word="shocking">shocking</span> <span word="but">but</span> <span word="the">the</span> <span word="fierce">fierce</span> <span word="nature">nature</span> <span word="of">of</span> <span word="HIV">HIV</span> <span word="had">had</span> <span word="disappeared">disappeared</span> <span word="by">by</span> <span word="having">having</span> <span word="all">all</span> <span word="six">six</span> <span word="of">of</span> <span word="the">the</span> <span word="potentially">potentially</span> <span word="deadly">deadly</span> <span word="genes">genes</span> <span word="removed">removed</span>.</p><p> <span word="Illnesses">Illnesses</span> <span word="such">such</span> <span word="as">as</span> <span word="various">various</span> <span word="cancers">cancers</span> <span word="are">are</span> <span word="caused">caused</span> <span word="when">when</span> <span word="a">a</span> <span word="gene">gene</span> <span word="in">in</span> <span word="a">a</span> <span word="patients">patients</span> <span word="body">body</span> <span word="fails">fails</span> <span word="to">to</span> <span word="work">work</span> <span word="properly">properly</span>. <span word="In">In</span> <span word="the">the</span> <span word="past">past</span> <span word="two">two</span> <span word="years">years</span>, <span word="breakthroughs">breakthroughs</span> <span word="in">in</span> <span word="geneticshave">geneticshave</span> <span word="led">led</span> <span word="gene">gene</span> <span word="therapy">therapy</span> <span word="scientists">scientists</span> <span word="to">to</span> <span word="try">try</span> <span word="and">and</span> <span word="replace">replace</span> <span word="the">the</span> <span word="genes">genes</span> <span word="that">that</span> <span word="do">do</span> <span word="not">not</span> <span word="function">function</span> <span word="normally">normally</span>.</p>
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