Question

Roger had just walked into his office and that was when he was told that his plan had finally been approved. Which of the following can be instead of the underlined(劃線的) part to make the sentence better.

A．a(chǎn)nd then they told him	B．when it was learned by him
C．a(chǎn)nd then he learned	D．when he learned

Answer 1

D

試題分析：考查when的用法：when當…時候，也可以是“這時”相當于at that time，可以構成had done…when…這個固定結構，意思是：剛剛做完…這時…,用when更加簡潔。句意：Roger剛剛走進辦公室，這時他知道他的計劃最后通過了。選D。
點評：when之前的分句為主要動作的發(fā)生提供時間背景。這一背景和主要動作之間有三種情況。1.某一連續(xù)性動作正在發(fā)生，突然發(fā)生另一事件。be doing…when…，2.某一短暫性動作就要發(fā)生時，突然發(fā)生另一事件，阻止了前一動作的發(fā)生。be about to do/ be on the point of doing…when…，3.某一動作已經(jīng)完成，突然發(fā)生另一動作：have/had done …….when