1、1Ive had this bike for three years单元语法聚焦十since 和 for 的用法现在完成时常和 since 或 for 引导的时间状语连用，此时的谓语动词要用延续性动词。1since 后面可以接表示过去的时间点，也可以接表示过去的从句。表示从过去某一时间开始直到现在的一段时间。如：Tony has taught English in our school since last year.自从去年，托尼就在我们学校教英语。Tony has taught English in our school since he came to China last year.自
2、从去年来到中国，托尼就在我们学校教英语。2for 后面可以接一个表示时间段的短语，表示动作或状态延续多长时间。如：We have lived in Beijing for three years.我们已经住在北京三年了。3since 和 for 的相互转换：(1)since一段时间agofor时间段 如：I have kept the book since two weeks ago.I have kept the book for two weeks.(2)since时间点for时间段 如：Its 10 oclock now. I have been here since 8 oclock.
3、Its 10 oclock now. I have been here for two hours.4常用的 since 句型：(1)since从句(常用一般过去时) 如：The Greens have lived in Beijing since they moved to Beijing from Paris.自从他们从巴黎搬到北京后，格林一家一直住在北京。(2)It is/has been一段时间since从句(常用一般过去时)如：It is/has been two years since my brother joined the army.我哥哥参军已有两年了。拓展短暂性动词在肯定
4、句、疑问句中不能与时间段连用，如 become, begin, buy, borrow, arrive, come, die, fall, finish, go, join, leave, marry 等。为了表述这种意思，我们常用相应的延续性动词 have, keep 等来代替非延续性动词。如：I have bought the book for a week. ()I have had the book for a week. ()我买这本书一周了。( )1.2018眉山Are you a basketball player in your school?Yes. I _ the team
5、 3 years ago. I _ in it for 3 years.Ajoined; was 2Bwas joined; amChave joined; have been Djoined; have been( )2.2018桂林 Daming _ in this place since two years ago.Ahave lived Bhas lived Clives( )3.2018武汉Do you still play basketball?Oh, no. I _ it for the past two years.Ahavent played Bdidnt playCwont
6、 play Dhadnt played( )4.2017乐山Im sorry for being late.Never mind. The meeting _ for only 5 minutes. This way, please.Ahas begun Bhas endedChas been on( )5.2018龙东Hurry up, the movie Wolf Warrior _ for 10 minutes.OK, Im coming right now.Abegan Bhas begunChas been on( )6.2018上海 The film Operation Red S
7、ea _ a lot of praise since its first show months ago.Awins BwinCwill win Dhas won( )7.2017北京 Lily is my classmate. We _ each other since she came to our school. Aknow BknewChave known Dwill know ( )8.2017黄石Where is your uncle, Jane?He is in Guangzhou. He _ for a month.Ahas left Bhas goneCleft Dhas been away3教师详解详析1D 2.B 3.A 4.C 5.C 6.D7C 考查动词的时态。根据从句“since she came to our school”可知，应该使用现在完成时。故选 C。8D 考查动词的时态。句意：“简，你的叔叔在哪里？” “他在广州。他已经离开一个月了。 ”根据语境可知，题空处用现在完成时；根据“for a month”可知，题空处不能用短暂性动词。故选 D。
