Unit 6 Nurturing Nature Using language 课件-2025-2026学年高中英语外研版（2019）选择性必修第一册

该高中英语课件聚焦“现在完成进行时”语法点，通过阅读文本例句（如藏羚羊使用通道、火车行驶等）导入，结合问题探究、例句辨析等活动帮助学生感知语法，再系统讲解结构、用法及与现在完成时的区别，构建从语境感知到规则理解再到应用的学习支架。 其亮点在于融合多模态活动提升语言能力，如从阅读中提取例句、填空翻译练习及听说对话角色扮演；生态旅游主题渗透环保意识，培养文化素养；通过时态对比辨析训练思维品质。学生能在真实语境中掌握语法并树立环保理念，教师可直接利用梯度化活动提高教学效率。

新外研社高中英语选择性必修一Unit 6 Nurturing nature Using Language Grammar 2 Present perfect continuous ◇Which of these statements is true about sentence (a)? A. Wild animal started using these passages in the past. B. Wild animals used these passages only once. C. Wild animals still use these passages now. Activity 1: Look at the sentences from the reading passage and answer the questions. a Wild animals such as these Tibetan antelopes have now been using these passages for years. b ...before I know it, we have reached Tanggula Station. 3 Activity 1: Look at the sentences from the reading passage and answer the questions. a Wild animals such as these Tibetan antelope have now been using these passages for years. b ...before I know it, we have reached Tanggula Station. ◇What’s the difference between the expressions in bold in sentences (a) and (b)? Sentence (a) is in present perfect continuous (have been doing), which shows that something ①started in the past, ②has continued up until now and ③will probably continue in the future. Sentence (b) is in present perfect (have done), which shows that something ①started in the past and continues in the present or ②something that happened in the past but is important in the present. Present perfect continuous 4 Activity 1: Look at the sentences from the reading passage and answer the questions. a Wild animals such as these Tibetan antelope have now been using these passages for years. b ...before I know it, we have reached Tanggula Station. ◇Now look for more sentences with the present perfect continuous tense in the reading passage. The train has been racing along steadily since it left Xining. All this time, the song “Sky Railway” has been playing inside my head. The Qinghai-Tibet Plateau has been attracting people’s admiration for centuries. ... Present perfect continuous 5 Present perfect continuous 现在完成进行时 ① I’ve been working with her for 20 years. ② Tom has been phoning Alice every night for several months. 主语+have / has been doing I. 结构 II. 意义和用法 ◇现在完成进行时表示从过去开始一直延续到现在的动作，该动作在说话时仍在继续进行，而且可能还要继续下去。 ◇现在完成进行时还可以表示从过去到现在的一段时间被反复进行的动作或存在的状态。 ◇现在完成进行时常与表示一段时间的状语连用，例如：all the time, this week, all night, these few days, for..., since...等。例如：A private detective has been tailing him for several weeks. 表示持续的状态。 强调反复进行的动作。 Present perfect continuous 6 1. 在不用时间状语的情况下，现在完成进行时的动作不一定已经完成，很可能持续下去，而现在完成时一般表示动作已经完成。即现在完成进行时强调动作的延续性，而现在完成时强调动作的结果。例如： ① I’ve been designing solar racing cars. 我一直在设计太阳能赛车。 ② I’ve designed five or six different cars. 我已经设计五六辆不同的小汽车了。 2. 现在完成进行时往往表示动作在重复，而现在完成时一般不表示动作的重复。例如： ① I’ve been taking part in races for four years. 我这四年一直在参加比赛。 ② How many races have you taken part in? 你参加多少场比赛了？ 3. 现在完成进行时与所有进行时态一样带有感情色彩，可使表达显得生动，而现在完成时往往只表明一个事实、一种影响或结果，不带感情色彩。例如： What have you been doing? You look fed up. 你一直在干什么呀？你看上去很不高兴。 III. 现在完成进行时与现在完成时的区别 Present perfect continuous 7 Activity 2: Complete the passage with the correct form of the verbs in brackets. I 1 _______________ (hear) a strange sound for a while. It’s a deep, loud roar, like a lion’s. But there aren’t any lions here ... Or are there? Soon I see what 2 _______________ (make) the noise: a howler monkey. Now I feel less worried. Realising that something 3___________ (move) on my shoulder, I turn my head to look at it. Oh no! It’s a giant spider! I brush it off and it runs under some leaves. I try to bat away the huge insects, which 4 ______________ (fly) around my head in a black cloud for quite a while. I pull off the headset and I’m back in my living room. Thank goodness! I 5_______________ (give) the latest virtual reality headset and, for the last twenty minutes, I 6 _____________ (use) it to explore the Amazon. This is an amazing experience and a reminder of how many species there are in the rain forest. We must do all we can to protect it. have been hearing has been making is moving have been given have been using have been flying Present perfect continuous 8 Activity 3: Look at the charts and make sentences using the present perfect continuous tense. Present perfect continuous The number of trees has been increasing in the last 20 years. 9 Activity 3: Look at the charts and make sentences using the present perfect continuous tense. Present perfect continuous Butterfly population has been increasing / has been becoming larger and larger in the last 20 years. Desert areas have been reducing in the last 20 years. 10 现在完成进行时 总结 例句 构成 have / has + been + 动词-ing形式 Tom has been watching TV programmes since seven o'clock this evening. I have been working here for five years. Summary 总结 例句 用法 表示一个由过去某一时间开始一直持续到现在的动作(可能刚结束，也可能还要进行下去)。 I've been doing my housework all morning and I've just finished it. How long have you been wearing glasses? 有时表示动作的重复。 David has been coughing a lot lately. He ought to give up smoking. 有时带有感情色彩。 Too much has been happening today! Example: I started playing basketball two years ago. 1. Lisa started running two years ago. Lisa _______________ for two years. 2. My neighbor started living here one year ago. My neighbor _________________ here for one year. 3. My baby sister started sleeping one hour ago. My baby sister _________________ for one hour. 4. The teacher started talking 30 minutes ago. The teacher _________________ for 30 minutes. 5. The boys and girls started listening to music 20 minutes ago. The boys and girls __________________ to music for 20 minutes. I have been playing basketball for two years. has been running Exercise 1: Change each sentence into a present perfect continuous sentence. Present perfect continuous has been living has been sleeping has been talking have been listening 13 1. 这些年来，他们一直为我们杂志写稿。 2. 从下午四点钟到现在，她一直在写信。 3. 我们一直在这所学校学习了三年。 4. 你看了多久电视了? How long have you been watching TV? We have been studying in this school for three years. She has been writing the letter since four o’ clock in the afternoon. All these years they have been contributing articles to our magazine. Exercise 2: Translate the following sentences into English using present perfect continuous tense. Present perfect continuous 14 1. The first use of atomic weapons (原子武器)was in 1945, and their power ____________________(increase) ever since. 2. Years ago we didn’t know this, but recent science ___________(show) that people who don’t sleep well get ill easily. 3. —Look! Somebody ___________(clean) the sofa. —Well, it wasn’t me. I didn’t do it. 4. —How long ___________ you ______________(work) in the factory? —Since 1990. Activity 3:Let’s practice has been increasing has shown has cleaned have been working Let’s practice 5．In order to find the missing child, villagers _______________ (do) all they can over the past five hours. 6．The manager _______________(tell) the workers how to improve the program since 9 am. 7．The two friends __________________(chat) on the Internet for three hours, and they will go on till next morning. Activity 3:Let’s practice have been doing has been telling have been chatting I 1 __________________(hear) a strange sound for a while. It’s a deep, loud roar, like a lion’s .But there aren’t any lions here… Or are there? Soon I see what 2__________________(make) the noise: a howler monkey. Now I feel less worried. Realizing that something 3____________(move) on my shoulder, I turn my head to look at it . Oh no! It’s a giant spider! I brush it off and it runs under some leaves. Activity4:Complete the passage with the correct form of the verbs in brackets. have been hearing has been making is moving I try to bat away the huge insects, which 4_______________(fly) around my head in a black cloud for quite a while. I pull off the headset and I`m back in my living room. Thank goodness! I5______________(give) the latest virtual reality headset and, for the last twenty minutes, I 6__________________(use) it to explore the Amazon. Activity 4:Complete the passage with the correct form of the verbs in brackets. have been flying have been given have been using Listening & speaking 19 Ecotourism is a type of tourism that conserves the environment. It encourages people to be responsible travellers and involves educating them about the natural world. Did You Know? For countries such as Costa Rica , Kenya and Nepal, ecotourism is an important part of the economy. Some ecotourism holidays involve voluntary work, such as planting trees or counting endangered animals. Listen to the conversation and choose the places mentioned. a. Australia d. South Africa b. Nepal c. Thailand P66 21 Listen again and complete the notes. P66 22 Rachel wants to: 1___________________ and plant trees. also 2______ rhinos, which will help protect them. eat local food. Rachel’s dad thinks: he can eat that kind of food at home. the activities sound like 3___________. hard work count hike in the mountains Check the answers The first option 23 Rachel wants to: look after 4__________. sleep in a tree house. Rachel’s dad wants to: 5_______________ and read a book. lie on the beach elephants The second option compromise They will stay in 6___________. Rachel can do ecotourism activities while her dad does what he likes. They will go on 7_________________ of the jungle. a nice hotel a one-day bike tour 24 Pair work What type of travel do you prefer? Complete the boxes with the expressions from the conversation. P66 Persuading others Compromising The fact is that ... Wouldn’t you agree that ... ? I agree, but … Let’s find a compromise. Let’s meet in the middle. As a compromise, … 26 Vocabulary building 27 White Beach is a beach on the island of Boracay in the Philippines. Its white sand, which bends towards the turquoise water, is dotted with palm trees. White Beach is of course a beautiful place to relax in a sun lounger and watch the spectacular sunset. Background information Complete the passage with the expressions in the box.(P67) As tourism develops, people are becoming increasingly concerned about the environment. Here in our city, there is a heated discussion about whether a hotel should be built at White Beach. The owner of the company thinks the hotel would attract more tourists, which will 1______________________________________ and 2___________________. However, the local people worry that building the hotel is 3______________ and will 4_________________, in particular the turtles which lay their eggs on White Beach. But they also admit that building the hotel will 5________________ for people living in the area. Even though the owner of the company guarantees that the design will be in harmony with its beautiful surroundings, the local people are still concerned that the hotel may 6 ______ _______________. Increased tourist numbers will also mean more cars and aeroplanes, which in turn means 7______________________. Listen to the passage and check your answers. (P67) create new opportunities for new businesses help the local economy not eco-friendly disturb the wildlife provide more jobs natural resources higher carbon emissions use up 30 Advantages 1. not eco-friendly 2. disturbing the wildlife 3. using up natural resources 4. higher carbon emissions 5. polluting inshore seawater 6. destroying local ecological environment... … Disadvantages Think about more advantages and disadvantages 1. attracting more tourists 2. creating opportunities for new businesses 3. helping the local economy 4. providing more jobs for people living in the area 5. raising awareness of protecting local wildlife 6. providing locals with a chance to experience cultures ... Complete the boxes with the expressions from the passage. Role-play a discussion to reach an agreement that is satisfactory for everyone. Use the expressions in this section. Student B: You are a conservationist who wants to protect the wildlife there. Student A: You are a hotel operator who wants to build a hotel on some forested land. Pair work $