4、44bc012a8805b7f80b88注释:该题选B。该题大意是“这些土地被水淹了”,用一般过去时被动语态wereflooded,符合题意。又如:Thelathewasdesignedbyourselves.这个车床是我们自己设计的。A.floodedB.werefloodedC.wasfloodedD.flood√4.A glass rod will be electrified by ________ with a piece of silk.正确答案:A402849a92a7f44bc012a8816c32e0c1f注释:该题选A大意是“玻
5、璃棒被一块丝绸摩擦生电”。aglassrod应该是被用apieceofsilk摩擦生电,根据题意选A. being robbed 。A.being robbedB. robbing C.having robbed D.having been robbed√5.He_______byhisteacher.正确答案:C402849a92a7f44bc012a880c38e90bde注释:该题选C。该题大意是“他碰巧被老师看到了”,选择C符合题意。happentodo意为“碰巧做某事”,是不及物动词短语,因此happen不用被动语态。see可用被动语态,