He said that light ____ much faster than sound.
A．traveledB．travelsC．is travelingD．had traveled
B

試題分析：考查時態(tài)：主句是過去時的時候，賓語從句一般是相應(yīng)的過去時，但如果賓語從句是客觀真理的時候，主句即使是過去時，從句也應(yīng)該是一般現(xiàn)在時。句意：他說光比聲音的速度快。選B。
點評：英語中的時態(tài)主要由動詞的形式?jīng)Q定，因此在學(xué)習(xí)英語時態(tài)時，要注意分析動詞形式及具體語境，想象在那個特定的時間動作所發(fā)生的背景，這題容易錯當(dāng)成過去時，但是看清句意后，會發(fā)現(xiàn)這是客觀真理，還是一般現(xiàn)在時。
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