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精英家教網 > 高中英語 > 題目詳情

【題目】Experiments _______ that children can be instructed in swimming at a very early age, as early as about two months.

A.are provingB.will be provedC.are provedD.have proved

【答案】D

【解析】

考查現在完成時態(tài)。句意:實驗證明,兒童在很小的時候就可以學會游泳,最早兩個月就可以了。此處表示“到現在為止已經得到的證明”,所以句子用現在完成時態(tài),且主語是Experiments,名詞復數,故選D。

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