来看今天的长难句： Gad! }dz
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. _5#f9,m1
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步骤一：找主干 `.n kC_d
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这是一个宾语从句，主干为：They predict that ... 他们预测说...... e#L/
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步骤二：拆分句子 c F_`m
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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。 ,eD@) K_:
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. mJ0nyjX^
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① They predict ... They 是整个句子的主语，predict 是谓语 JE,R
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② that 直至句末是一个由 that ...引导的宾语从句，在该从句中： D8slSX`6j
a complete understanding of the human genetic code 是主语 5~4I.+~8
would provide 是谓语 X<ZIeZBn
untold benefits for humanity 是宾语 <
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for example 是插入语 Jis{k$4
those abilities to diagnose ... faulty genes 为前文untold benefits for humanity 的同位语 1eI >Yy>}
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 a9Lf_/w{ &
caused by faulty genes 动词的过去分词短语作后置定语，修饰 diseases bmna*!l ^M
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步骤三：查生词 y.5mYQA4=[
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1. genetic [dʒəˈnetɪk] adj. 基因的；遗传学的 |332G64K
genetic and environmental factors 遗传和环境因素 ~\DC
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genetic abnormalities 基因异常 {4ON2{8;4
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2. untold [ˌʌnˈtəʊld] adj. 不计其数的；难以估量的 //`heFuc]>
An Olympic gold medal can lead to untold riches for an athlete. ukv
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一枚奥运金牌能给运动员带来无尽的财富。 :h0as!2@dp
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3. faulty [ˈfɔːlti] adj. 有缺陷的 i68'|4o
This machine is guaranteed for a year against faulty workmanship. 75w QH*
这种机器如有工艺缺陷可保修一年。 )y'`C@ijI
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参考译文： iyU@|^B"Wa
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。
