Question

Since no one really knows what effects the GM food might have _____ us humans, many countries think that they should be cautious _____ this new technology.

A．about; with

B．on; to

C．in; to

D．on; with

Answer 1

D

試題分析：
根據句意：因為沒有人真正知道轉基因食物可能對我們人類有什么影響，許多的國家認為他們呢應該對新技術抱以謹慎的態度。
have effects on sth 對…有影響
be cautious with sth 對…謹慎小心的
be cautious to do sth 對做…謹慎小心的。故選D
點評：像這種固定短語的題目，重在分析句子成分，調整語序，并看懂意思。另外此句出自課本原文，平時需對課本反復朗讀加深印象。