Question

　　Robert is said _____ abroad, but I don’t know what country he studied in .

A．to have studied	B．to study
C．to be studying	D．to have been studying

Answer 1

A

　　試題分析：本題測試的是動詞不定式在日常生活中的使用能力。此題最大的干擾項(xiàng)D．to have been studying來自動詞時(shí)態(tài)的復(fù)雜煩瑣的種種語法規(guī)則。如果平時(shí)時(shí)態(tài)教學(xué)從簡，“顧名思義”地理解時(shí)態(tài)的最基本語法就在它的術(shù)語名稱之中，那么 A．to have studied就是現(xiàn)在完成時(shí)態(tài)，因?yàn)樯舷挛牡腞obert is said _______abroad，和but don’t know what country…都指“現(xiàn)在”，那么，下文的What country he studied in中的studied又說明動作是過去發(fā)生，其結(jié)果在現(xiàn)在，現(xiàn)在沒有“正在進(jìn)行”，故而現(xiàn)在完成進(jìn)行時(shí)態(tài)的D．to have been studying不是最佳選項(xiàng)。