六級翻譯沖刺專項訓練（25）
3. If ever there will be time for environmental health professionals to come to the frontlines and provide leadership to solve environmental problems, that time is now.
[參考譯文]如果說有需要環保專業人員站出來擔負起領導責任的最佳時機的話，現在可謂是正當其時。
4. The Times newspaper agrees, complaining that quality has suffered as student numbers soared, with close tutorial supervision giving way to mass production methods more typical of European universities.
[參考譯文]《泰晤士報》對此有同感，它報怨說，由于學生人數激增，教學質量受影響，因為個別指導不得不讓位于歐洲大陸國家高校里慣有的大規模生產方式。
5. If food already contains natural carcinogens, it does not make sense to add dozens of new man-made ones.
[參考譯文]盡管食品中已經含有了天然的致癌物質，但是，再人為地增加一些有毒物質也是很不應該的。
6. By studying mineral grains found in material ranging from rocks to clay articles, previous researchers have already been able to identify reversals dating back 170 million years, including the most recent switch 730,000 years ago.
[參考譯文]通過研究巖石，陶器等一系列材料中含有的礦物顆粒，先前的研究人員已能夠確認早在1.7億年發生的磁場兩極轉化現象，以及發生在73萬年以前的最新一次兩極轉化現象。
7. Several theories link polarity flips to external disasters such as meteor impacts.
3. If ever there will be time for environmental health professionals to come to the frontlines and provide leadership to solve environmental problems, that time is now.
[參考譯文]如果說有需要環保專業人員站出來擔負起領導責任的最佳時機的話，現在可謂是正當其時。
4. The Times newspaper agrees, complaining that quality has suffered as student numbers soared, with close tutorial supervision giving way to mass production methods more typical of European universities.
[參考譯文]《泰晤士報》對此有同感，它報怨說，由于學生人數激增，教學質量受影響，因為個別指導不得不讓位于歐洲大陸國家高校里慣有的大規模生產方式。
5. If food already contains natural carcinogens, it does not make sense to add dozens of new man-made ones.
[參考譯文]盡管食品中已經含有了天然的致癌物質，但是，再人為地增加一些有毒物質也是很不應該的。
6. By studying mineral grains found in material ranging from rocks to clay articles, previous researchers have already been able to identify reversals dating back 170 million years, including the most recent switch 730,000 years ago.
[參考譯文]通過研究巖石，陶器等一系列材料中含有的礦物顆粒，先前的研究人員已能夠確認早在1.7億年發生的磁場兩極轉化現象，以及發生在73萬年以前的最新一次兩極轉化現象。
7. Several theories link polarity flips to external disasters such as meteor impacts.
