Question

—Does your sister work as a teacher in Canada?
—No, but she once  _________there for five years．

A．taught

B．had taught

C．has taught

D．would teach

Answer 1

A

試題分析：had taught表示過去的過去，這里沒有可以參照的過去的動(dòng)作，故排除B；has taught現(xiàn)在完成與現(xiàn)在有關(guān)，故排除C；would teach過去將來時(shí)，過去說將要做的事，不符合語境，故排除C；taught過去式跟現(xiàn)在沒有關(guān)系，是持續(xù)性動(dòng)詞，可與時(shí)間段連用，故選A。
點(diǎn)評(píng)：本題難度適中。動(dòng)詞時(shí)態(tài)是高考的熱點(diǎn)。而語境中的時(shí)態(tài)具有靈活多變的特點(diǎn)，因此找出隱含于上下文中的時(shí)間信息，正確認(rèn)定動(dòng)作行為所發(fā)生的時(shí)間是解題的關(guān)鍵。
即學(xué)即練：－Have you read the novel?
－Yes. I ____it three times while I was in university.
A. had read   B. read    C. have read   D. was reading
解析：B。句意：考查動(dòng)詞時(shí)態(tài)。此處一般過去時(shí)僅表示在過去（大學(xué)期間）發(fā)生的事情（這篇小說讀過三遍）。故選B。