2019年春八年级英语下册Module4Seeingthedoctor模块语法专练课件 7页

语法精讲 现在完成时( 三 ) 1.现在完成时表示动作或状态从过去某一时刻开始一直持续到现在,常与“since+时 间点”或“for+时间段”连用。for表示“经过( 一段时间 )”,而since表示“自从( ……以 来 )”。例如: I have lived in Hefei for ten years.我在合肥已经住了10年了。 He has been in this school since 2010.自从2010年起,他就在这所学校了。 My sister has learnt English since she was four.我姐姐从4岁起就开始学英语了。 2.在对现在完成时句子中的时间状语进行提问时,应用how long。例如: —How long has Mary been a teacher?玛丽成为老师已经多久了? —Since two years ago.自从两年前。 语法精讲 3.在现在完成时的肯定句中,非延续性动词一般不能与时间段连用。在表示持续一段 时间的句中,应将非延续性动词转换为相同意义的延续性动词。 常见的非延续性动词转换为延续性动词: 注意:在否定句中,非延续性动词可以与时间段连用。例如: I haven’t seen him for a long time.我很久没见到他了。 I haven’t heard from her since she left.自她离开以后,我一直没收到她的来信。 语法精练 Ⅰ.单项填空 ( A )1.—Excuse me,where is Mr Brown’s office? —Sorry,I don’t know.I　　　　here for only a few days.  A.have worked B.worked C.work D.will work ( D )2.My grandmother　　　　a lot of changes in Tianjin since she came here.  A.sees B.can see C.will see D.has seen ( D )3.I　　　　many new friends since I came here.  A.make B.made C.will make D.have made 语法精练 ( B )4.—Look at these stamps.I　　　　them for five years.  —Wow,they are wonderful. A.kept B.have kept C.have bought D.have brought ( D )5.I　　　　Mr Smith since he moved to Shanghai.  A.didn’t hear from B.don’t hear from C.won’t hear from D.haven’t heard from ( C )6.Not only Jim but also his parents　　　　a few interesting places since they came to China.  A.will visit B.has visited C.have visited D.visited 语法精练 ( C )7.My aunt is a writer.She　　　　more than ten books since 1980.  A.writes B.wrote C.has written D.will write ( A )8.Mike　　　　for ten years.He still loves his wife very much.  A.has been married B.married C.got married D.has married ( D )9.My brother has　　　　the army for three years.  A.joined B.taken part in C.joined in D.been in ( B )10.—　　　　have you been like this?  —Since Friday. A.How soon B.How long C.How often D.How many times 语法精练 Ⅱ.根据句意用for或since填空 1.We haven’t seen each other　for　a long time.  2.His father has been in the Party　since　10 years ago.  3.The film has been on　for　20 minutes.  4.Mr Green has worked here　since　he came to China.  5.His grandparents have been dead　for　several years.