1、1Beichen Biliugual School1.The lost boy hasnt been found yet.2.Such a thing has never been heard of before.3.The manger has just left.用法（1）过去的动作对现在现在造成的影响或结果。already;yet;recently;lately.4.Financial(财务的财务的)problems of the company have been discussed for nearly 2 hours.5.He has lived here since he cam
2、e here.用法（2）表示一个动作或状态始于过去过去，持续到现在，并有可能持续下去。for 或 since 引导的时间状语从句6.I have only been to the Great Wall once.7.Have you ever been to the concert by the four world famous singers.用法（3）表示过去的一种经历，可用how many times 提问。常与often；ever；never；only;twice 等连用终止性动词可以用于现在完成时么？终止性动词可以用于现在完成时，但不可用在for、since 等表示时间段的状语的肯
3、定句中。方法一：用于否定句可以。I have seen her for two years.(）I havent seen her for two years.(）方法二：将终止性动词换为相对应的持续性动词。He has bought this car for three months.(）He has had this car for three months.(）We havent found the lost boy yet.The lost boy hasnt been found yet.have/has+been+done by sb所有的现在完成时态都可以变成被动语态么？并非所有
4、的动词或词组都有被动语态。happen;take place;break out;belong to;cost;grow;rise;last etc.常用的时间状语(必记知识点）1.They have built many houses in the village in the past few years.2.The 60-year-old grandma has taken care of the child devotedly all these years.3.I have already downloaded the software to help my phone batter
5、y last longer.4.They havent yet decided how to solve that difficult technological problem.5.Jack has set up an e-library for students on the school website lately.1.I t i s s u r p r i s i n g t h a t t h e e x p e r i m e n t _(repeat)three times,with different results each time.2.It is the first t
6、ime that his coach _(praise)him in public.3.I n o u r s c h o o l,t h e m i n d m a p _(apply)to English teaching since the new headmaster took office.4.S o f a r,m a n y p a r t s o f t h e G r e a t W a l l _(repair).has been repeatedhas praisedhas been appliedhave been repaired 5.In recent years,
7、doctors _(train)specifically for general practice.6.Many a man _(cheat)by such tricks up to now.7.All the measures _(take),so we can do nothing but wait.8.Eason _(pay)much attention to his handwriting since Sarah warned him of it.have been trainedhas been cheatedhave been takenhas paid1.1.The experi
8、ment hasnt been done successfully.The experiment hasnt been done successfully.2.2.Some useful apps have been used to help with Some useful apps have been used to help with their work these years.their work these years.3.3.Jacks novel hasnt been published by the Jacks novel hasnt been published by th
9、e publisher yet.publisher yet.4.4.Many outdoor activities have been organized by Many outdoor activities have been organized by the school to balance students school life.the school to balance students school life.5.5.The fire has been put out by the firefighters and The fire has been put out by the
10、 firefighters and 15 residents have been saved.15 residents have been saved.6.The restaurant is so popular that all the tables have already been reserved by diners.7.This place hasnt ever been visited again.8.Peoples life has been largely influenced by modern technologies.9.A spaceship company called Space-X has been set up by Elon Musk.10.Millions of dollars worth of damage to the corps has been caused by a storm.
