過去將來時的典型例題解析
正如我們通常要在時間狀語從句以及條件狀語從句使用一般現(xiàn)在時代替一般將來時一樣,如果在時間狀語從句或條件狀語從句中,因語義的需要而使過去將來時,那么應(yīng)改用一般過去時。如:
他說要是第二天下雨他們就待在家里。
誤:He said they would stay at home if it would rain the next day.
正:He said they would stay at home if it rained the next day.
另外,當(dāng)by the time后接一個句子起將狀語從句時,其后的從句用一般現(xiàn)在時代替一般將來時,用一般過去時代替過去將來時。如下面是北京卷的一道高考題:
When I talked with my grandma on the phone, she sounded weak, but by the time we ______ up, her voice had been full of life.
A. were hanging B. had hung C. hung D. would hang
分析:C。從邏輯上說,當(dāng)我在電話里和奶奶聊天時,她的聲音聽起來很虛弱;但到我們要掛電話時,她的聲音又充滿朝氣。從邏輯上說,應(yīng)該是“奶奶的聲音又充滿朝氣”在先,“我們掛斷電話”在后,如果是反過來的話,那說話者就無法聽知道“奶奶的聲音又充滿朝氣”之回事了。所以“掛斷電話”應(yīng)用一般過去時。另外,由于by the time后接句子引導(dǎo)時間狀語從句時,從句謂語通常要用一般現(xiàn)在時代替一般將來時,用一般過去時代替過去將來時,所以選項D不能選。
過去將來時典型考題:
1. Did you predict that many students ______ up for the dance competition?
A. would sign B. signed C. have signed D. had signed
分析:A。根據(jù)主句謂語動詞predict(預(yù)計)的意思可知,從句應(yīng)用過去將來時,即指預(yù)計將要發(fā)生某事。又如:
She predicted that the improvement would continue. 她預(yù)測情況將繼續(xù)好轉(zhuǎn)。
2. He didn’t sell half as many videos as he thought he ______.
A. had B. would C. was D. sold
分析:B。he would為he would sell之省略,為過去將來時,表示在當(dāng)時看來將會出現(xiàn)的情況。句意為:他售出的錄像帶還不到他設(shè)想的一半。又如:
It’s curious (that) Billy hasn’t phoned when he promised he would. 比利答應(yīng)要打電話來的,但一直沒有打,這很反常。