2015考研英语阅读双胞胎母亲更幸福
<p> <span word="Mothers">Mothers</span> <span word="of">of</span> <span word="twins">twins</span> <span word="do">do</span> <span word="not">not</span> <span word="just">just</span> <span word="get">get</span> <span word="twice">twice</span> <span word="the">the</span> <span word="bundle">bundle</span> <span word="ofjoythey">ofjoythey</span> <span word="are">are</span> <span word="also">also</span> <span word="healthier">healthier</span> <span word="than">than</span> <span word="other">other</span> <span word="mothers">mothers</span></p><p> 拥有双胞胎的母亲不仅能得到双份的快乐，而且她们会比其她母亲更健康。</p><p> <span word="THROUGHOUT">THROUGHOUT</span> <span word="history">history</span>, <span word="twins">twins</span> <span word="have">have</span> <span word="provoked">provoked</span> <span word="mixed">mixed</span> <span word="feelings">feelings</span>. <span word="Sometimes">Sometimes</span> <span word="they">they</span> <span word="were">were</span> <span word="seen">seen</span> <span word="as">as</span> <span word="acursean">acursean</span> <span word="unwanted">unwanted</span> <span word="burden">burden</span> <span word="on">on</span> <span word="a">a</span> <span word="familys">familys</span> <span word="resources">resources</span>. <span word="Sometimes">Sometimes</span> <span word="they">they</span> <span word="were">were</span> <span word="viewed">viewed</span> <span word="as">as</span> <span word="ablessing">ablessing</span>, <span word="or">or</span> <span word="even">even</span> <span word="as">as</span> <span word="a">a</span> <span word="sign">sign</span> <span word="of">of</span> <span word="their">their</span> <span word="fathers">fathers</span> <span word="superior">superior</span> <span word="virility">virility</span>. <span word="But">But</span> <span word="if">if</span> <span word="Shannen">Shannen</span> <span word="Robson">Robson</span> <span word="and">and</span> <span word="KenSmith">KenSmith</span>, <span word="of">of</span> <span word="the">the</span> <span word="University">University</span> <span word="of">of</span> <span word="Utah">Utah</span>, <span word="are">are</span> <span word="right">right</span>, <span word="twins">twins</span> <span word="have">have</span> <span word="more">more</span> <span word="to">to</span> <span word="do">do</span> <span word="with">with</span> <span word="their">their</span> <span word="mothers">mothers</span> <span word="sturdyconstitution">sturdyconstitution</span> <span word="than">than</span> <span word="their">their</span> <span word="fathers">fathers</span> <span word="sexual">sexual</span> <span word="power">power</span>.</p><p> 在历史上，对待双胞胎有着复杂的感情。有时，他们被视为祸根--家庭中不受欢迎的负担。有时，他们被视为祝福，或作为他们父亲拥有更好的性能力的一个标志。但如果犹他大学的夏侬.罗布森和肯.史密斯是正确的，那么双胞胎为他们的母亲那健壮的体格所做的比为他们的父亲的性能力方面所做的更多。</p><p> <span word="At">At</span> <span word="first">first</span> <span word="blush">blush</span>, <span word="this">this</span> <span word="sounds">sounds</span> <span word="an">an</span> <span word="odd">odd</span> <span word="idea">idea</span>. <span word="After">After</span> <span word="all">all</span>, <span word="bearing">bearing</span> <span word="and">and</span> <span word="raising">raising</span> <span word="twins">twins</span> <span word="is">is</span> <span word="taxing">taxing</span>, <span word="both">both</span> <span word="forthe">forthe</span> <span word="mother">mother</span> <span word="and">and</span> <span word="for">for</span> <span word="the">the</span> <span word="children">children</span>. <span word="Any">Any</span> <span word="gains">gains</span> <span word="from">from</span> <span word="having">having</span> <span word="more">more</span> <span word="than">than</span> <span word="one">one</span> <span word="offspring">offspring</span> <span word="at">at</span> <span word="a">a</span> <span word="timemight">timemight</span> <span word="be">be</span> <span word="expected">expected</span> <span word="to">to</span> <span word="be">be</span> <span word="like">like</span> <span word="higher">higher</span> <span word="infant">infant</span> <span word="and">and</span> <span word="maternal">maternal</span> <span word="mortality">mortality</span> <span word="rates">rates</span>. <span word="On">On</span> <span word="this">this</span> <span word="view">view</span>, <span word="twins">twins</span> <span word="areprobably">areprobably</span> <span word="an">an</span> <span word="accidental">accidental</span> <span word="by">by</span>-<span word="product">product</span> <span word="of">of</span> <span word="a">a</span> <span word="natural">natural</span> <span word="insurance">insurance</span> <span word="policy">policy</span> <span word="against">against</span> <span word="the">the</span> <span word="risk">risk</span> <span word="of">of</span> <span word="losing">losing</span> <span word="anembryo">anembryo</span> <span word="early">early</span> <span word="in">in</span> <span word="gestation">gestation</span>. <span word="That">That</span> <span word="would">would</span> <span word="explain">explain</span> <span word="why">why</span> <span word="many">many</span> <span word="more">more</span> <span word="twins">twins</span> <span word="are">are</span> <span word="conceived">conceived</span> <span word="than">than</span> <span word="born">born</span>,<span word="and">and</span> <span word="why">why</span> <span word="those">those</span> <span word="born">born</span> <span word="are">are</span> <span word="so">so</span> <span word="rare">rare</span> . <span word="Theyaccount">Theyaccount</span> <span word="for">for</span> <span word="between">between</span> <span word="six">six</span> <span word="and">and</span> 40 <span word="live">live</span> <span word="births">births</span> <span word="per">per</span> 1,000, <span word="depending">depending</span> <span word="on">on</span> <span word="where">where</span> <span word="the">the</span> <span word="mother">mother</span> <span word="lives">lives</span>.</p>
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