来看今天的长难句： OPN \{<`*d
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. y pEMx'p
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步骤一：找主干 IP/%=m)\%
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这是一个宾语从句，主干为：They predict that ... 他们预测说...... /4O))}TX
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步骤二：拆分句子 6 D
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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。
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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. tC|?Kl7
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① They predict ... They 是整个句子的主语，predict 是谓语 P@PF" {S
② that 直至句末是一个由 that ...引导的宾语从句，在该从句中： >3p~>;9sc
a complete understanding of the human genetic code 是主语 Btxtu"]nJo
would provide 是谓语 ^2}HF/
untold benefits for humanity 是宾语 f2[R2sto@
for example 是插入语 oi|N8a2R
those abilities to diagnose ... faulty genes 为前文untold benefits for humanity 的同位语 :+6W%B
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 `E1G9BbU
caused by faulty genes 动词的过去分词短语作后置定语，修饰 diseases 6HZtdRQF
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步骤三：查生词 F(n<:TvlK
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1. genetic [dʒəˈnetɪk] adj. 基因的；遗传学的 kf>3T@
genetic and environmental factors 遗传和环境因素 =q0V%h{
genetic abnormalities 基因异常 m H\zSk
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2. untold [ˌʌnˈtəʊld] adj. 不计其数的；难以估量的 7YD+zd:
An Olympic gold medal can lead to untold riches for an athlete. 4_5f4 %S
一枚奥运金牌能给运动员带来无尽的财富。 0e<>2AL
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3. faulty [ˈfɔːlti] adj. 有缺陷的 rl 7up
This machine is guaranteed for a year against faulty workmanship. f$QkzWvr
这种机器如有工艺缺陷可保修一年。 :se$<d%
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参考译文： Fc@R,9
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。
