北师大版高中英语必修五unit13peoplelesson31

北师大版高中英语必修五unit13peoplelesson31内容摘要：

该做某事 ， 而事实上并没有做。 否定句表示 “ 不该做某事而做了 ”。 ought to在语气上比 should要强。 You ought to/should have been more careful in this experim。 He ought not to have thrown the old clothes away. 他不应该把那些旧衣服扔了。 (事实上已扔了 ) (5)“ needn’t have done” 表示做了本没有必要做的事情。 I wore too much for the trip， but I needn’t have done he weather was hot. 这次旅行我穿太多了 ， 我本没有必要这样做 ， 天气太热了。 (6)“might/may have done”表示可能做过某事。 might 表示推测 ， 可能性比 may小。 I can’t find my key； I might have left it at home. 我找不到钥匙了 ， 我或许把它忘在家里了。 He may have been waiting for us for an hour. 他可能已经等我们一小时了。 一 、 过去分词 Ⅰ .用所给动词的适当形式填空 1． No one noticed him______(hide) behind the door. 2． I found the headmaster______(seat) at the back of the classroom. 3． The road was blocked by a______(fall) tree. 4． You’d better have the television________(repair)． 5． We were______(bore)with the director’s long speech. 6． Some people______(invite) to the party can’t e. 7． ______(give) a chance， I can surprise the world. hidden seated fallen repaired bored invited Given 8． Once______(lose)， the chance will never e. 9． We would like to see the plan______(carry)out. 10． His__________(frighten)shout made all of us__________(frighten)． lost carried frightening frightened Ⅱ .单项填空 1． The island， ______to the mainland by a bridge， is easy to go to. A． joining B． to join C． joined D． having joined 答案 C [join与 the island之间是逻辑上的动宾关系 ， 故此处用过去分词。 ] 2． Michael put up a picture of Yao Ming beside the bed to keep himself ______of his own dreams. A． reminding B． to r。