八年级英语下册 Unit 10 I've had this bike for three years（第3课时）(Grammar Focus-4c)同步语法精讲精练课件 （新版）人教新目标版1

第三课时(Grammar Focus4c)单元同步语法精讲精练Unit 10Ive had this bike for three years. 现在完成时表示从过去某一时刻延续到现在的动作或状态，常与for，since引导的时间状语连用。for一段时间， since过去时间点或从句(从句的谓语动词用过去式)。eg：I have lived here for twenty years.我住在这里已有20年了。We have built many factories since 1985.自1985年以来，我们建了许多工厂。He has always helped me with my English since he came here.自从他到这里以后，他总是帮助我学习英语。 有的动词所表示的动作不是瞬间就可以完成的，要持续一段时间，这样的动词叫延续性动词。不能延续下去的动词，叫非延续性动词或瞬间动词。如：buy， borrow等，这些动词在完成时中可改为相应的表示延续性的词或短语来与表示一段时间的状语连用。如：buyhave，borrowkeep， comebe， joinbe， diebe dead， beginbe on等。eg：He joined the army two years ago.他两年前就参军了。He has been in the army for two years.他在部队已经两年了。He has been a soldier for two years.他成为一名战士已经两年了。 一、根据句意，选用for或since完成句子。1 Ive known him four years.2 Weve lived here I was a child.3 Shes waited for him twentyfive minutes.4 Theyve been married 1988.5 Its been three years I left my hometown.forsinceforsincesince 二、用所给单词的适当形式填空。6 I (be) at work since eight oclock， but Im leaving soon.7 We (not meet) each other for five years.Both of us (leave) the factory five years ago.8 I (wait) at the restaurant for an hour， and then I left.9 We must get a new car.We (have) this one for ten years.10 Children (never visit) the Great Wall before.Their parents (take) them there next month.have beenhavent metleft(had) waited have hadhave never visitedwill take 三、单项选择。11 _ have you been in the sports club?Since the first month I came to the school.A How oldBHow longC How much DHow soon12 My parents _ our home for a few hours when I arrived.I didnt meet them.A had been away from Bhad leftC have been away from Dhave leftB A 13 I visited him three days _But he has gone to Shanghai a week _.A ago；ago Bbefore；beforeC before；ago Dago；before14 Im looking after Tom today.Hes been in my house _ 8：00 this morning.A atBforCsinceDtill15 Look at these stamps.I _ them for 5 years.Wow， they are wonderful.A kept Bhave keptC have bought DboughtD CB 四、根据汉语意思完成句子。16到目前为止，迈克已经唱了五首歌。Mike five songs 17格林夫人还没有收到她女儿的信。Mrs. Green the letter from her daughter 18两年前我就买了这块手表。I this watch two years ago.I this watch since two years ago.has sung so farhasnt received yetboughthave had 19他2012年搬到了法国。He to France in 2012.He in France for about four years.20一周前我借了这本书。I this book a week ago.I this book a week ago.I this book a week.movedhas beenborrowedhave kept sincehave kept for