Jack _______ in the lab when the electricity went out. A. works B. has worked C. was working D. woul
英语试题 07-21
Jack _______ in the lab when the electricity went out.
A. works B. has worked C. was working D. would work
【答案】C
【解析】
【详解】考查过去进行时。句意：杰克正在实验室里工作，这时候突然断电了。本句考查when引导的并列句，句型为：sb. was/were doing sth. when…表示一个动作在进行，另一个动作发生了，when在句中是并列连词，故此处用过去进行时，故选C项。
【点睛】when作并列连词时，引导并列句，意为“……就在这时，……”。常用句型有三种：1.sb. be doing when...某人正在做某事时突然……，如I was watching TV when someone knocked the door.；2. sb. be about to do when...某人正要做某事时突然……，如I was about to go out for a walk when the doorbell rang.；3.sb. had just done sth. when...某人刚做完某事时突然……，如I had just finished the homework when my mother came in.。
A. works B. has worked C. was working D. would work
【答案】C
【解析】
【详解】考查过去进行时。句意：杰克正在实验室里工作，这时候突然断电了。本句考查when引导的并列句，句型为：sb. was/were doing sth. when…表示一个动作在进行，另一个动作发生了，when在句中是并列连词，故此处用过去进行时，故选C项。
【点睛】when作并列连词时，引导并列句，意为“……就在这时，……”。常用句型有三种：1.sb. be doing when...某人正在做某事时突然……，如I was watching TV when someone knocked the door.；2. sb. be about to do when...某人正要做某事时突然……，如I was about to go out for a walk when the doorbell rang.；3.sb. had just done sth. when...某人刚做完某事时突然……，如I had just finished the homework when my mother came in.。
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