1、Unit 10 Ive had this bike for three years.,单元语法聚焦十,单元语法聚焦十,语 法 精 讲,语 法 精 练,Unit 10 Ive had this bike for three years.,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
2、语 法 精 讲,单元语法聚焦十,Tony has taught English in our school since he came to China last year. 自从去年来到中国，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。,单元语法聚焦十,3since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 ha
3、ve 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. Its 10 oclock now. I have been here for two hours.,单元语法聚焦十,4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
4、)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。,单元语法聚焦十,拓展短暂性动词在肯定句、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
5、 a week. () I have had the book for a week. ( ) 我买这本书一周了。,单元语法聚焦十,( ) 1.2018眉山 Are you a basketball player in your school? Yes. I _ the team 3 years ago. I _ in it for 3 years. Ajoined; was Bwas joined; am Chave joined; have been Djoined; have been,D,单元语法聚焦十,语 法 精 练,( ) 2.2018桂林 Daming _ in this pla
6、ce 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 play Cwont play Dhadnt played,B,单元语法聚焦十,A,( ) 4.2017乐山 Im sorry for being late. Never mind. The meeting _ for only 5 minutes. This way, please.
7、 Ahas begun Bhas ended Chas been on ( )5.2018龙东 Hurry up, the movie Wolf Warrior _for 10 minutes. OK, Im coming right now. Abegan Bhas begun Chas been on,单元语法聚焦十,C,C,( ) 6.2018上海 The film Operation Red Sea _ a lot of praise since its first show months ago. Awins Bwin Cwill win Dhas won,单元语法聚焦十,D,( )
8、 7.2017北京 Lily is my classmate. We _ each other since she came to our school. Aknow Bknew Chave known Dwill know,【解析】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。,C,( ) 8.2017黄石 Where is your uncle, Jane? He is in Guangzhou. He _ for a month. Ahas left Bhas gone Cleft Dhas been away,单元语法聚焦十,D,【解析】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。,
