高中英语 Unit 6 Nurturing nature突破 语法大冲关学案 外研版选择性必修第一册-外研版高二选择性必修第一册英语学案VIP专享

Unit 6 Nurturing nature现在完成进行时[观察例句]1．The train has been racing along steadily since it left Xining.2．All this time，the song “Sky Railway” has been playing inside my head.3．Wild animals such as these Tibetan antelopes have now been using these passages for years.4．The journey has been flying by，and before I know it，we have reached Tanggula Station.5 ． The QinghaiTibet Plateau has been attracting people's admiration for centuries.[归纳用法]1．现在完成进行时的构成现在完成进行时是由“have/has been＋现在分词”构成的。He is ill.He's been lying in bed for three weeks.他病了。已经卧床 3 个星期了。Your eyes are red.Have you been crying?你眼睛红了。你刚刚哭过了吗？What have you been doing all this time?这半天你干什么来着？2．现在完成进行时的用法① 表示动作从过去某时开始，一直延续到现在。现在完成进行时常和 all this time，this week，this month，all night，all the morning，recently 等状语以及 since 和 for 引导的状语连用。I have been reading Hemingway's Farewell to Arms recently.我最近一直在读海明威的《永别了，武器》。She has been reciting the words all the morning.她整个上午都在背单词。This is what I have been expecting since my childhood.这是我从小以来就一直期待着的事情。② 表示动作刚刚结束My clothes are all wet.I've been working in the rain.我的衣服全湿了。我刚才一直在雨中干活。He is dead drunk.He's been drinking with his friends.他烂醉如泥。他刚才一直在和朋友们喝酒。③ 表示一个近期内时断时续、重复发生的动作。You've been saying that for five years.这话你已经说了五年了。He has been writing articles to the newspapers and magazines since he became 1a teacher.自从任教以来，他一直在为报刊杂志撰稿。④ 表达较重的感情色彩。What have you been doing to my dictionary?看你把我的字典弄成什么样子了？Time has been flying so quickly!时间过得可真快啊！Too much has been happening today.今天...