1、=【 ;精品教育资源文库 】 = Unit 10 I ve had this bike for three years. Present Perfect Tense 【学习目标】 学习与运用现在完成时的用法 【学习重、难点】 学 习重点： 现在完成时的基本用法 。 学习 难点： 现在完成时与过去式的区别； 短暂性动词和延续性动词在现在完成时中的用法。 【课前自习】 一、现在完成时的定义 1）表示过去发生或已经完成的动作对现在造成的影响或结果 2）表示从过去某一时间开始一直持续到现在的动作或状态。常与 since+时间点， for+一 段时间，so far 等时间状语连用；还常与 already
2、， yet， ever， never， before， just 等连用。 二、现在完成时和一般过去时的区别 现在完成时表示过去发生的某一动作对现在造成的影响或结果，强调的是现在的情况，所以它不能和表示过去的时间状语连用。而一般过去时只表示过去的动作或状态，和现在不发生关系，它常与表示过去的时间状语连用，如： yesterday， last night， three weeks ago， in1990 等。 三、短暂性动词和延续性动词在现在完成时中的用法 现在完成时 表示过 去发生的动作或存在状态，一直持续到现在，也许还将继续下去，可以和 for+时间段， since+时间点 /从句连用，谓语
3、动词只可用延续性动词。终止性动词 可以用于现在完成时的否定与疑问句式中。 常见的终止性动词与延续性动词之间的对应关系如下： come/go/ arrive/reach/get to -be in /at die - be dead close -be closed become -be begin/start-be on borrow -keep buy-have leave -be away from 【当堂训练】 一、 用适当的时态填空： 1.Shes _ (live) here ever since she was ten. 2.Both of them _ (be) in Hongko
4、ng for ten days. 3.Both of them _ (come) to Hongkong ten days ago. 4. Mary_(lose) her pen. _ you _ (see) it here and there? 5. _ you _ (find) your watch yet? 6. We _already _ (return) the book. 7. _ they _ (build) a new school in the village? 8. I _(not finish) my homework . Can you help me? 9. My f
5、ather _ (read) the novel twice. 10. I _ (buy) a book just now. 11. I _ (lost ) my watch yesterday. 12. My father _ (read) this book since yesterday. 二、 短暂性转换延续性 1、 arrive at/in. get to/reach. Come /go /move to. be in/at school/at home/on the farm/be here/be there 1) He got to Beijing five minutes ag
6、o. He _ _ _ Beijing for _ _. 2) I moved to the USA last year. I _ _ _ the USA since _ _. =【 ;精品教育资源文库 】 = 3) I went home yesterday. I _ _ _ home for _ _. 4) They came here last week. They _ _ here since _ _. come/go back ； return be back ； come/go out be out 1) He came out two years ago. He _ _ _ fo
7、r _ _. 2) We returned to Fuzhou yesterday. We _ _ _ to Fuzhou since _. become be 1) I became a teacher in 2000. I _ _ a teacher for _ _. 2) The river became dirty last year. The river _ _ dirty for _ _. close be closed ； open be open 1) The shop closed two hours ago. The shop _ _ _ for _ _. 2) The d
8、oor opened at six in the morning. The door _ _ _ for six hours. get up be up ； die be dead ； leave. be away from. fall asleep/get tot sleep be asleep ； finish/end be over； marry be married 1) I got up two hours ago. I _ _ _ since _ _. 2) He left Fuzhou just now. He _ _ _ _ Fuzhou for five minutes. 3
9、) My grandpa died in 2002. My grandpa _ _ _for _ _. 4) The meeting finished at six. The meeting _ _ _ for six hours. 5) I got to sleep two hours ago. I _ _ _ since _ _. 6) They married in 1990. They _ _ _since _. start/begin be on 1) The film began two minutes ago. The film _ _ _ for _ _. borrow kee
10、p ； buy have ； put on wear ； catch/get a cold have a cold ； get to know know 1) They borrowed it last week. They _ _ it since _ _. 2) I bought a pen two hours ago. I _ _ a pen for _ _. 3) I got to know him last year. I _ _ him since _ _. 4) I put on my glasses three years ago. I _ _ my glasses for _ _.
