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课件网) Unit 1 Past and present Grammar 1 在复习Reading语境中，获取与梳理现在完成时的形式特征和表意功能，以及规则动词与不规则动词的过去分词的形式变化规律； 2 设置不同情境中不同层次的练习，巩固与内化现在完成时与一般过去时的区别； 3 准确运用所学时态介绍月光镇在交通出行方式、生活环境改善等诸多方面的发展变化。 1 In the context of reviewing the Reading section, identify and sort out the formal characteristics and expressive functions of the Present Perfect Tense, as well as the formation rules of past participles for both regular and irregular verbs. 2 Design multi-level exercises in different scenarios to consolidate and internalize the differences between the Present Perfect Tense and the Simple Past Tense. 3 Accurately apply the learned tenses to introduce the development and changes of Moonlight Town in various aspects such as transportation modes and living environment improvement. Teaching aims Fill in the blanks according to the text and pay attention to the words in bold. Great changes have taken place in Shenzhen over the 40 years. Once it was just a small village in southern China, but now it has become a world-famous city. Since the r_____ and opening-up policy in the 1980s, Shenzhen has attracted millions of people to work and live here. With i_____ at the heart of the city, Shenzhen has risen to be an important center for China's high-tech i_____. As a result, e_____ young talent from across the world has come to Shenzhen. The city has won an h_____ from UNESCO for encouraging reading among the public. It's really a wonderful place to visit. eform nnovation ndustries xcellent onor have taken has become has attracted has risen has come has won Present perfect tense have/has done (past participle of verbs) What can we discuss using the present perfect tense How is the past participle of a verb formed 1. The present perfect can talk about events that have (or haven’t) happened before now. The exact time of the event is unspecified. The adverbs ever, never, just, before, yet（negative, yes-no question）, still , and already (formative) are often used with the present perfect. -- Have you ever been to Shenzhen --No, I haven't. I’ve never been there. But Andrew has. --I haven’t visited Shenzhen yet. 2. We use the present perfect tense (often used with since and for ) to talk about an action that started in the past and continues to the present. Since the late 1970s, Shenzhen has developed at an amazing speed. Shenzhen has developed at an amazing speed for over 50 years. adverbial phrases often used with the present perfect tense: recently, so far, up to now/up till now, in the past few years/weeks/days, over the last year/month, over the years 3. We use the present perfect tense to talk about an action that happened in the past and has a connection with the present. Tom is looking for his key. He can't find it. He has lost his key. He has lost his key= He lost it recently, and he still ... ...
