通过文章阅读学习英语六级的词汇(三十五)
<p> 通过文章阅读学习英语六级词汇 <span word="Unit">Unit</span> <span word="thirty">thirty</span>-<span word="five">five</span></p><p> <span word="Xenotransplantation">Xenotransplantation</span></p><p> <span word="Transplant">Transplant</span> <span word="surgeons">surgeons</span> <span word="work">work</span> <span word="miracles">miracles</span>. <span word="They">They</span> <span word="take">take</span> <span word="organs">organs</span> <span word="from">from</span> <span word="one">one</span> <span word="body">body</span> <span word="and">and</span> <span word="integrate">integrate</span> <span word="them">them</span> <span word="into">into</span> <span word="another">another</span>, <span word="granting">granting</span> <span word="the">the</span> <span word="lucky">lucky</span> <span word="recipient">recipient</span> <span word="a">a</span> <span word="longer">longer</span>, <span word="butter">butter</span> <span word="life">life</span>. <span word="Sadly">Sadly</span>, <span word="every">every</span> <span word="year">year</span> <span word="thousands">thousands</span> <span word="of">of</span> <span word="other">other</span> <span word="people">people</span> <span word="are">are</span> <span word="less">less</span> <span word="fortunate">fortunate</span>, <span word="dying">dying</span> <span word="while">while</span> <span word="they">they</span> <span word="wait">wait</span> <span word="for">for</span> <span word="suitable">suitable</span> <span word="organs">organs</span> <span word="to">to</span> <span word="be">be</span> <span word="found">found</span>.</p><p> <span word="The">The</span> <span word="terrible">terrible</span> <span word="constraint">constraint</span> <span word="on">on</span> <span word="organ">organ</span> <span word="transplantation">transplantation</span> <span word="is">is</span> <span word="that">that</span> <span word="every">every</span> <span word="life">life</span> <span word="extended">extended</span> <span word="depends">depends</span> <span word="in">in</span> <span word="the">the</span> <span word="death">death</span> <span word="of">of</span> <span word="someone">someone</span> <span word="young">young</span> <span word="enough">enough</span> <span word="and">and</span> <span word="healthy">healthy</span> <span word="enough">enough</span> <span word="to">to</span> <span word="have">have</span> <span word="organs">organs</span> <span word="worth">worth</span> <span word="transplanting">transplanting</span>. <span word="Such">Such</span> <span word="donors">donors</span> <span word="are">are</span> <span word="few">few</span>. <span word="The">The</span> <span word="waiting">waiting</span> <span word="lists">lists</span> <span word="are">are</span> <span word="long">long</span>, <span word="and">and</span> <span word="getting">getting</span> <span word="longer">longer</span>.</p><p> <span word="Freedom">Freedom</span> <span word="from">from</span> <span word="this">this</span> <span word="constraint">constraint</span> <span word="is">is</span> <span word="the">the</span> <span word="dream">dream</span> <span word="of">of</span> <span word="every">every</span> <span word="transplant">transplant</span> <span word="surgeon">surgeon</span>. <span word="So">So</span> <span word="far">far</span> <span word="attempts">attempts</span> <span word="to">to</span> <span word="make">make</span> <span word="artificial">artificial</span> <span word="organs">organs</span> <span word="have">have</span> <span word="been">been</span> <span word="disappointing">disappointing</span>: <span word="nature">nature</span> <span word="is">is</span> <span word="hard">hard</span> <span word="to">to</span> <span word="mimic">mimic</span>. <span word="Hence">Hence</span> <span word="the">the</span> <span word="renewed">renewed</span> <span word="interest">interest</span> <span word="in">in</span> <span word="trying">trying</span> <span word="to">to</span> <span word="use">use</span> <span word="organs">organs</span> <span word="from">from</span> <span word="animals">animals</span>.</p><p> <span word="Doctors">Doctors</span> <span word="in">in</span> <span word="India">India</span> <span word="have">have</span> <span word="just">just</span> <span word="announced">announced</span> <span word="that">that</span> <span word="they">they</span> <span word="have">have</span> <span word="successfully">successfully</span> <span word="transplanted">transplanted</span> <span word="a">a</span> <span word="heart">heart</span> <span word="from">from</span> <span word="a">a</span> <span word="pig">pig</span> <span word="into">into</span> <span word="a">a</span> <span word="person">person</span>. <span word="Pressure">Pressure</span> <span word="to">to</span> <span word="increase">increase</span> <span word="the">the</span> <span word="number">number</span> <span word="of">of</span> <span word="such">such</span> <span word="xenotransplants">xenotransplants</span> <span word="seems">seems</span> <span word="to">to</span> <span word="be">be</span> <span word="growing">growing</span>. <span word="In">In</span> <span word="Europe">Europe</span> <span word="and">and</span> <span word="America">America</span>, <span word="herds">herds</span> <span word="of">of</span> <span word="pigs">pigs</span> <span word="are">are</span> <span word="being">being</span> <span word="specially">specially</span> <span word="bred">bred</span> <span word="and">and</span> <span word="genetically">genetically</span> <span word="engineered">engineered</span> <span word="for">for</span> <span word="organ">organ</span> <span word="donation">donation</span>. <span word="During">During</span> 1996 <span word="at">at</span> <span word="least">least</span> <span word="two">two</span> <span word="big">big</span> <span word="reports">reports</span> <span word="on">on</span> <span word="the">the</span> <span word="subject">subject</span><span word="one">one</span> <span word="in">in</span> <span word="Europe">Europe</span> <span word="and">and</span> <span word="on">on</span> <span word="in">in</span> <span word="America">America</span><span word="were">were</span> <span word="published">published</span>. <span word="They">They</span> <span word="agreed">agreed</span> <span word="that">that</span> <span word="xenotransplants">xenotransplants</span> <span word="were">were</span> <span word="permissible">permissible</span> <span word="on">on</span> <span word="ethical">ethical</span> <span word="grounds">grounds</span>, <span word="and">and</span> <span word="cautiously">cautiously</span> <span word="recommended">recommended</span> <span word="that">that</span> <span word="they">they</span> <span word="be">be</span> <span word="allowed">allowed</span>. <span word="Americas">Americas</span> <span word="Food">Food</span> <span word="and">and</span> <span word="Drug">Drug</span> <span word="Administration">Administration</span> <span word="has">has</span> <span word="already">already</span> <span word="published">published</span> <span word="draft">draft</span> <span word="guidelines">guidelines</span> <span word="for">for</span> <span word="xenotransplantation">xenotransplantation</span>.</p>
页:
[1]