Unit 3 Fascinating Parks Discovering Useful Structures 动词-ing作主语课件-2026-2027学年高中英语人教版选择性必修第一册

Unit 3 Fascinating Parks ----Discover useful structures the –ing form used as Subject Lead-in 动词 谓语动词 非谓语动词 to do done doing doing Discover useful structures(P29) Identify the function of the --ing form in the sentences below. Getting here is quite difficult. Being in such a beautiful and wild place makes me feel blessed to be alive. 作主语 作主语 V-ing 形式 动名词 现在分词 Discover useful structures(P29) Rewrite each of the following sentences using the --ing form as the subject. EXAMPLE: It is challenging yet really fascinating to hike through the mountains in the pathless Sarek. =Hiking through the mountains in the pathless Sarek is challenging yet really fascinating. 1 It is both challenging and rewarding to study abroad. 2 It would hardly be possible to go on a hiking tour in Sarek in winter due to the extreme cold. 3 Honestly, it can be both exciting and terrifying to explore a vast unknown land. Studying abroad is both challenging and rewarding. Going on a hiking tour in Sarek in winter would hardly be possible due to the extreme cold. Honestly, exploring a vast unknown land can be both exciting and terrifying. 5 4 It is good to adopt a positive attitude, even when things are difficult. 5 It is strongly advised to hire local guides, because they can offer accurate knowledge of Sarek culture and history. Adopting a positive attitude is good, even when things are difficult. Hiring local guides is strongly advised, because they can offer accurate knowledge of Sarek culture and history. 用法归纳1 动名词(短语)作主语时,往往表示经常性、习惯性的动作或抽象的概念,通常置于句首。 6 It is no use waiting for other people to make decisions for you. It is no good pretending to know what you do not know. It’s useless crying over split milk.覆水难收。 It is a waste of time persuading such a person to join us. It is worthwhile having a try even if you may fail. 情景观察 用法归纳2 有些句子为了保持平衡,避免“头重脚轻”,常用it 作形式主语,而把作真正主语的动名词(短语)后置。常见句式有: It’s a waste of time doing sth.做某事是在浪费时间。 It’s useless doing sth.做某事没用。 It’s no good/no use/no fun doing sth.做某事没好处/没用/无趣。 It’s worthwhile doing sth. 做某事是值得的。 There is no denying that... 不能否认 Climbing mountains is really difficult for the old. We all know that going to bed early and getting up early is a good habit. Listening to the English radio and watching English films are good ways to learn English. 情景观察 用法归纳3 单个动名词(短语)作主语时,谓语动词用①　 　    形式;当两个或两个以上的动名词(短语)作主语时,若表示的是一个整体意义,谓语动词用②　 　    形式,若表示的是彼此独立的意义,谓语动词用③　 　    形式。 单数 单数 复数 动名词的复合结构作主语 Her coming to help encouraged all of us.她来帮忙鼓舞了我们所有人。 Jane’s being careless caused so much trouble.简的粗心惹来了这么多麻烦。 跟前面V.ing作主语有什么不一样吗？ 用法归纳4 动名词的复合结构作主语时,其逻辑主语常用形容词性物主代词或者所有格形式。 9 动名词作主语与不定式作主语的区别 1.Climbing mountains can be hard work. 2.To climb the mountains was hard work but as we looked around us we were surprised by the view. 这两个句子在意义上有什么不同呢？ 用法归纳5 动名词作主语则表示泛指的、一般的行为。 动词不定式作主语多指某次具体的、一次性的行为; 10 表示一般动作 动名词(短语)作主语时,往往表示经常性、习惯性的动作或抽象的概念,通常置于句首。 与不定式区别 动名词侧重习惯性、经常性动作，而不定式侧重具体某一次动作。 动名词复合结构 动名词的复合结构作主语时,其逻辑主语常用形容词性物主代词或者所有格形式。 谓语单复数 单个动名词(短语)作主语时,谓语动词用单数;当两个或两个以上的动名词(短语)作主语时,若表示的是一个整体意义,谓语动词也用单数,若表示的是彼此独立的意义,谓语动词用复数。 it作形式主语 当主语较长时，常用it作形式主语，将动名词后置，有常见几种句型。 V.ing 作主语的五点用法归纳 即时 巩固 ①(2024新课标Ⅱ)Moreover, 　　　　    (have) a system in the same building where it’s eaten means zero emissions(排放) from transporting plants from soil to salad. ②(2023新课标Ⅱ)Besides, 　　　　    (work) in the garden seems to have a calming effect on Jaramillo’s special education students, many of whom have emotional control issues. ③(2022新高考Ⅱ)　　　　    (write) an essay is a difficult process for most people. ④(2022新高考Ⅰ)Producing food that no one eats 　　　　    (waste) the water, fuel, and other resources used to grow it. having working Writing wastes 即时 巩固 ⑤(2022全国乙)Helping the next generation to have a healthy and active childhood 　　　　    (be) of great importance, and the industry is playing its part. ⑥(2022全国甲)　　　　    (know)some tips will help ensure that you have an enjoyable meal with friends or family. ⑦(2025 · 全国I卷）It is worth ________ (try) new ways to protect the environment. is Knowing trying Fill in each blank using the -ing form of a verb from the box and state its function. One word will be used twice. (Textbook P29) combine cover grow take limit walk experience 回归教材 Xixi National Wetland Park(西溪国家湿地公园), ________10 square kilometres in western Hangzhou, is the first national wetland park in China. __________ city life, nature, and wetlands makes the park a popular destination both for tourists and local residents. At Xixi, ______ a boat tour, ________ along paths, and ___________ local customs and traditions of the villages in this park are at the top of the list of people’s favourite activities. With trees, bushes, and colourful flowers ________ along the riversides, the park shows different sides of beauty in different seasons. In order to better develop as well as preserve this place, ________ human impact on Xixi Wetland was considered by the park designers. All the new buildings were designed in a traditional way to fit into the natural environment. This green, watery world is home to many birds and fishes. With trees ________ in the shallows, the wetland is a natural system for providing clean water and producing oxygen, which makes it the “green lungs of Hangzhou”. combine cover grow take limit walk experience covering Combining taking walking experiencing growing Limiting growing attributive subject subject subject subject attributive subject attributive 1.游览国家公园是一种非常有益的(rewarding)经历。 2.保护自然环境对我们的未来至关重要。 3.在这个公园里漫步(wander)是一种非常愉快的体验。 4.公园内禁止(prohibit)野餐，违者将被罚款。 5.建立更多的国家公园对于保护野生动植物至关重要。 6.萨勒克国家公园的壮丽(splendid)景色吸引了(appeal to)无数游客前来参观。 回归教材 结合本单元话题，并且使用本单元语法翻译以下句子。 1.游览国家公园是一种非常有益的(rewarding)经历。 2.保护自然环境对我们的未来至关重要。 3.在这个公园里漫步(wander)是一种非常愉快的体验。 4.公园内禁止(prohibit)野餐，违者将被罚款。 5.建立更多的国家公园对于保护野生动植物至关重要。 6.萨勒克国家公园的壮丽(splendid)景色吸引了(appeal to)无数游客前来参观。 Visiting national parks is a very rewarding experience. Protecting the natural environment is vital to our future. Wandering in this park is a very pleasant experience. Picnicking in the park is prohibited, and those who disobey the rule will be fined. Establishing more national parks is crucial for protecting wild animals and plants. The splendid scenery of the Salouk National Park appeals to countless visitors. Homework 1. Finish the exercise on P76 about the -ing form. 2. Write a passage to introduce a park you like. The -ing forms are expected. $