Section Ⅱ Grammar——现在完成进行时课前自主预习[例句·体验]1．—Where is Peter? I can't find him anywhere.—He went to the library after breakfast and has been writing his essay there ever since.——Peter 在哪？我哪也找不到他。——早饭后他去了图书馆，从那以后他一直在那写论文。2．Marty has been working really hard on his book and he thinks he'll have finished it by Friday.玛蒂一直在努力地写着他的书，他想在周五前会完成它。3．Since the time humankind started gardening, we have been trying to make our environment more beautiful.自从人类开始从事园艺工作以来，我们就一直在努力使我们的环境更美。4．—Tony, why are your eyes red?—I have been cutting up peppers for the last five minutes.——托尼，为什么你的眼睛红了？——过去的五分钟里我一直都在剁辣椒。5．All these years they have been contributing articles to our magazine.这些年来，他们一直为我们杂志写稿。6．You know, I have been looking for a job for three months, and this is my first formal interview.你知道吗，我找了三个月工作了，这是第一次正式的面试。7．Here he is! We have been waiting anxiously for him since last night.他来了！从昨天晚上到现在，我们一直在焦急地等待着他。8．In order to prepare for the exam, I have never seen a film since March.为了准备考试，我从三月份至今，就没看过一场电影。9．She has been playing football since she was six.自从 6 岁开始她就一直在踢足球。10．Where have you been? We have been looking for you everywhere.你到哪里去了，我们到处在找你。课堂合作探究[语法·讲座]1．现在完成进行时的构成现在完成进行时由 have/has＋been＋动词的现在分词构成，第三人称单数用 has，其他人称用 have。2．现在完成进行时的用法(1)表示从过去某时开始一直延续到现在的动作。这个动作可能刚停止，也可能将继续进行下去，常与延续性动词连用。并常与 all the time, this week, this month, all night, all the morning, recently 以及 since 和 for 引导的状语连用。I have been rea...
