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新世纪版英语八年级下册《Appendix V：The Past Perfect Tense 》多媒体精品ppt课件
那时以前 那时 现在
We got there at 7:00
The bus left at 6:55
By the time we got there, the bus had already gone.
二、构成：had +p.p. (过去分词) had 为助动词 无人称和数的变化。 They had already had breakfast before they arrived at the hotel.
否定句在had 后面加not 变成 had not=hadn’t.
They hadn’t had breakfast before they arrived at the hotel.
一般疑问句把had 提前．回答： yes, sb had ./ no, sb hadn’t
Had they had breakfast before they arrived at the hotel.
Yes, they had.
No, they hadn’t.
｛
Exercise: Rewrite the following sentences as required
1, She had finished writing the passage by 10 :00 this morning. (否定句)
________________________________________________________
2, He had studied English for seven years by last term.(一般疑问句)
_________________________________________________________
_________________________________________________________
3，The population had reached 6 billion by 1999.（改为反意问句）
The population had reached 6 billion by 1999,________,_________?
4， When I got to the station, Mary had already left.(划线提问)
_________________________________________________________
__________________________________________________________
She hadn’t finished writing the passage by 10:00 this morning.
Had he studied English for seven years by last tern?