初中英语课本中常见的非延续性动词用于具有一段时间状语的现在完成时句子，动词替换规律举例如下：

非延续性动词（或短语）                   与一段时间状语连用后的转换语

Arrive in (at)                              be in ( at )

Begin                                    be on

Borrow                                   keep

Buy                                      have

Catch a cold                               have a cold

Close                                     be closed

Die                                       be dead

Fall asleep                                 be asleep

Fall ill                                     be ill

Finish                                      be over

Get to know                                 know

Get to sleep                                  sleep

Get up                                      be up

Join                                         be in ( be a member of )

Leave                                        be away

Leave… for                                   be off… to

Open                                         be open

Reach                                        be in ( at )

Return                                        be back

Turn on ( off )                                  be on ( off )

Forget “忘记，遗忘”与 leave “遗忘”的区别

1)      forget 可用作及物和不及物动词

如：I forget his name. 我不记得他的名字了。

   I forgot going there.我忘记曾经去过那里了。

Li Ming forgot to take an umbrella.李明忘记要带伞了。

She has forgotten where he lives.她忘记他住哪儿了。

Is this your bag?这是你的包吗？     Oh, yes. I forgot. 哦，是的。我忘记了。

2)      leave “遗忘”是及物动词，指把某物遗留在某地方。

如：I left my purse at home.我把钱包忘记在家里了。

   He left his watch on my desk yesterday.他把他的手表忘在我的课桌上了。