来看今天的长难句： lJdwbuB6
They predict that a complete understanding of the human genetic code would provide untold benefits for humanity，for example，those abilities to diagnose, cure, and eventually prevent many diseases caused by faulty genes. z1m$8-4
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步骤一：找主干 * Fm #Qek
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这是一个宾语从句，主干为：They predict that ... 他们预测说...... \@F!h8e4
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步骤二：拆分句子 M }qrF~
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为了便于分析，帮助大家理解，把这个句子切分了一下，并标上了序号。 d>}R3T
①They predict ②that a complete understanding of the human genetic code would provide untold benefits for humanity, for example, those abilities to diagnose, cure, and eventually prevent many diseases caused by faulty genes. 8mv}-;
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① They predict ... They 是整个句子的主语，predict 是谓语 BiCC72oig
② that 直至句末是一个由 that ...引导的宾语从句，在该从句中： JQk][3Rv
a complete understanding of the human genetic code 是主语 N^xk.O_TO
would provide 是谓语
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untold benefits for humanity 是宾语 XWYLa8 Ef
for example 是插入语 <v[UYvZvY
those abilities to diagnose ... faulty genes 为前文untold benefits for humanity 的同位语 6*% E4#4
to diagnose, cure, and eventually prevent many diseases caused by faulty genes 动词不定式短语作定语，修饰 abilities
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caused by faulty genes 动词的过去分词短语作后置定语，修饰 diseases
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步骤三：查生词 Y0ouLUlI
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1. genetic [dʒəˈnetɪk] adj. 基因的；遗传学的 6[SE*/E@L
genetic and environmental factors 遗传和环境因素 @&
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genetic abnormalities 基因异常 m5KAKpCR,
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2. untold [ˌʌnˈtəʊld] adj. 不计其数的；难以估量的 v5g]_v*F
An Olympic gold medal can lead to untold riches for an athlete. K
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一枚奥运金牌能给运动员带来无尽的财富。 >cRE$d?
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3. faulty [ˈfɔːlti] adj. 有缺陷的 p!RyxB1.|
This machine is guaranteed for a year against faulty workmanship.
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这种机器如有工艺缺陷可保修一年。 '?j,oRz^T
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参考译文： Df_*W"(v
他们预计，对人体基因编码的全面认识将给人类带来无法估量的好处，例如，使人类能够诊断、治疗并最终预防由基因缺陷造成的很多疾病。
