人教新目标版九年级全册Unit6 Secation A Period 2(共26张PPT)

unit 6 When was it invented? period2 时态 被动语态结构 一般现在时态 一般过去时态 一般将来时态 现在完成时态 现在进行时态 过去进行时态 情态动词 is done by / are done by was done by / were done by will be done by has been done by have been done by is being done by are being done by was being done by were being done by can be done by A talk _____________(give) to us next week. The roads _________(build) last year. will be given were built 1.It's said(据说) that the long bridge______________（build）in two months． 2.Last year a large number of trees______________（cut）down． 3. The students _____ often _____(tell) to take care of their desks and chairs. 4. The old man is ill. He ______ (must send) to the hospital. 5. Can the magazine _______ (take) out of the library? predict the earthquake be brought to a safe place it happens suddenly. = all of a sudden one of the great pioneers (先驱者) of inventions Do you know other great pioneers (先驱者) of inventions? I found a website. be mentioned be listed Baird I