新人教精通版六年级英语下册：Unit 1 I went to Sanya for my holidays Lesson 3--现在完成时-课件.pptVIP

Unit 1 I went to Sanya for my holidays Lesson 2现在完成时 The Present Perfect Tense;现在完成时 （1）构成:现在完成时 “have/has+ 动词的过去分词”构成。; 现在完成时的肯定式、否定式和疑问式及简单回答形式（以动词study为例）： 肯定式: I (You) have studied. He (She, It) has studied. We (You, They) have studied.;否定式: I (You) have not/haven’t studied. He (She, It) has not/hasn’t studied. ;疑问式：Have I (you) studied? Yes, you (I) have./No, you (I) haven’t.;（2）用法 a.表示过去发生或已经完成的某一动作对现在造成的影响或结果。例如： I have opened the window.我已经把窗户打开了。（窗户是开着的） The concert has started.音乐会已经开始（音乐会现在在进行） They have gone to Shanghai.他们已去上海了（他们不在这里）;【注意】不能与表示过去的时间状语连用，如yesterday, last year, in 1980, three days ago, just now, when I came in等连用。但可以和一些不确定的时间状语，如already, yet sometimes, often, before, lately, once, never, just, ever等连用；也可以和包括现在在内的时间状语，如this morning, today, this week, this year等连用。;例如: She has already come.她已经来了。 I haven’t read it yet.我还没有读过这个。 Have you ever seen each other before?你们见过面吗？; b.表示过去已经开始、持续到现在（也许还会继续进行下去）动作或状态，常和表示一段时间状语，如:today, these days, since…,for…,this month, now等连用。;例如: I have studied English for two years. 我学英语已经两年了。 They have lived in Beijing since 1980. 他们自1980年就一直住在北京。 We’ve known each other since we were children.我们从小就认识。;现在完成时与瞬间动词;二、用“It is +一段时间＋since ＋一般过去时从句 ” It is three years since he left here.;三、用“ 一段时间＋have/ has passed + since + 一般过去时从句 Three years have passed since he left here.;( )1.You’ve never seen such a wonderful film before, _______? A. haven’t you B. have you C. do you D. don’t you ( ) 2. —I have watched the game. —When ____ you ____ it? A. have; watched B. do; watch C. did ;watch D. will; watch;Thank you!;Unit 1 I went to Sanya for my holidays Lesson 2现在完成时 The Present Perfect Tense;现在完成时 （1）构成:现在完成时 “have/has+ 动词的过去分词”构成。; 现在完成时的肯定式、否定式和疑问式及简单回答形式（以动词study为例）： 肯定式: I (You) have studied. He (She, It) has studied.