Section A (Grammar focus - 4c)Unit 10 I've had this bike for three years.Grammar FocusTip 2: underline the key points.Tip1: circle the time.Tip 3：区别现在完成时和过去式1. 现在完成时动词构成：have /has + v 过去分词助动词否定haven’thasn’t疑问Have you…?Has he…?(1)与下列时间状语连用：just , already, yet,ever, never, before, several timesRevision have/ has (2) 与下列时间状语连用： for或since引起的一时间状语连用。 for three years， since I was four years, since 1999 ,现在完成时的用法1.过去发生的动作对现在造成的影响或结果。和already，never,ever,just,before,yet等状语连用。2.过去已经开始，持续到现在的动作或状态，与for或since引起的一时间状语连用。I have just had my breakfast.(现在我不饿)I have lived here for three years.I have lived here since 2004/three years ago.Revision ( 1).for+表示一时间的短语 ( 2).since+表示过去时间点的词语 ( 3).since+表示过去时间的时间状语从句eg.I have been a teacher ______ a year. He has been at this school _______ 1992. We have learned 1,000 English words _______ we came to this school.forsincesince现在完成时句中见的时间状语A.表示从过去一直持续到现在, 不能是具体 的过去时间。Revision everjustalreadyyete.g. Have you _____been to Japan? I have _____ finished my homework. I have finished my homework ______. I haven’t finished my homework ____.B. ju |
