(
课件网) Unit4 Discover Useful Structures the present perfect continuous tense At the end of this lesson, students are able: 1. To learn the definition and formation of the present perfect continuous tense; 2. To learn the usages of the present perfect continuous tense; 3. To distinguish the present perfect continuous tense and present perfect tense. Learning Objectives _____with a shadow overhead _____ with a cloud above my bed I've been lonely for so long Trapped in the past, I just can't seem to move on _____ all my hopes and dreams away Just in case I ever need them again someday _____ aside time To clear a little space in the corners of my mind All I wanna do is find a way back into love I can't make it through without a way back into love _____ but the stars refuse to shine _____ but I just don't see the signs 1.Listen to the music and fill in the blank lyrics. Way Back Into Love Lead-in I've been living with a shadow overhead I've been sleeping with a cloud above my bed I've been lonely for so long Trapped in the past, I just can't seem to move on I've been hiding all my hopes and dreams away Just in case I ever need them again someday I've been setting aside time To clear a little space in the corners of my mind All I wanna do is find a way back into love I can't make it through without a way back into love I've been watching but the stars refuse to shine I've been searching but I just don't see the signs 2.What’s the similarity of these lyrics you filled in 以上句子中划线部分，用的是 ， 其构成为： . 现在完成进行时 have/has＋been＋doing Lead-in 基本结构：“have / has been + 现在分词” 否定：have/has＋not＋been doing 基本含义：表示动作从过去某一时间开始一直持续到现在，可能刚刚停止，也可能仍在继续。 Present Past Future present perfect continuous tense (现在完成进行时) Explore grammar He has been watching TV for 3 hours, but he is still watching now. 动作发生在过去，还将继续下去。 Present Past Future Explore grammar 2. Jack has been phoning Jane every night for the last week. Tom has always been working hard. (赞许） What have you been doing to my dictionary （不满） 表示动作并不是一直不停地进行，而是在断断续续地重复。 带有感彩，使语言表达更加生动。 Explore grammar ①Inventors _____ (一直在试图)to make flying cars since the 1930s. ②Tom _____(一直在努力学习) since the new term began. ③I _____(一直在踢足球) all the morning, so I'm sweating heavily. have been trying has been working hard have been playing football Practice 现在完成时和 现在完成进行时的比较 相同点： 1. 动作都发生在过去 2. 都与一段时间连用 They are different in forms and usages. Comparison 1、表示过去发生的某一动作对现在造成的影响或结果。常跟already, yet, just等连用。 You have already grown much taller. 2、表示过去已经开始，持续到现在，而且还可能继续下去的动作状态。往往和表示一段时间的状语连用。 They have learned English for eight years. 现在完成时 has/have done Comparison 常跟现在完成时连用的标志词： for+时间段，since+时 ... ...
