最新现在完成时的被动式

1、the present perfect passive voicethe present perfect passive voice1. present perfect tense (现在完成时) structure：have/has + p.plets review!2. the passive voice (被动式)structure: be+p.pe.g.the computer here is occupied by me.sakura in wuhan university has bloomed for several days. be done + have/has done p

2、assive voice + present perfect tensedefinition:an action which is passively finished by now.(到现在为止已经完成的某个被动的动作)e.g.apple has been upgraded a lot over the time . have/has been donethe present perfect passive voice?1. the subject is not the performer of the action, but the bearer. 2. the action is fin

3、ished by the time of talking.3. the action started in the past, and it last until now. it may last longer to the future time.pastpresent. . （future）e.g. the apple has been eaten!1.phrases which contain prepositions cant left out the prepositions.介词词组不可把介词省去he has thought of a way of solving the prob

4、lem. 2. intransitive verbs dont have the passive voice,such as take place, arrive, become, disappear ,etc . 不定式没有被动态the accident which was happened yesterday surprised me. pay attention to these particular cases:=a way of solving the problem has been thought of.1.when well get another holiday _ yet.

5、 a. are not decided b. have not been decided c. is not being decided d. has not been decided2. betty_ injured since last saturday. a. has been b. was c. is d. haslets practice!lets summarize！i have you have he / she / it has we haveyou / they have (not)been told .have ihave youhas he / she / ithave wehave you / they（not）been told ?in interro