1、Unit 3 Fascinating Parks Discover Useful Structures -V-ing 形式作主语形式作主语Learning objectivesIn this class, you will recognize and summarize the function and meaning of the ing form as the subject;1. Getting here is quite difficult.2. Being in such a beautiful and wild place makes me feel blessed to be a
2、live.subject in the ing formActivity 1: Observe the sentences.+ verb动词动词-ing形式由形式由“动词动词 + + ing形式形式”构成构成, , 该结构可以在该结构可以在句中作主语句中作主语, , 动词动词-ing形式作主语多指抽象的、概念性形式作主语多指抽象的、概念性的动作的动作, , 可以是经常性的行为。可以是经常性的行为。Sarek National Park Europes Hidden Natural TreasureA Summer Where the Sun Never SleepsI wake up to t
3、he sound of the wind buffeting the cloth of my tent. Even though the sun is brightly shining, telling whether it is morning or night is impossible. Im above the Arctic Circle, where in summer the sun never sets. Checking my watch, I see that it is 7:30 a.m.Activity 2: Find sentences with the ing for
4、m as the subject from the text.Sarek National Park Europes Hidden Natural TreasureA Land of Mountains and IceGetting here is quite difficult, so apart from the Sami very few people have ever seen Sarek. Sarek National Park Europes Hidden Natural TreasureMan at Peace with NatureFor hundreds of years,
5、 looking after reindeer was a way of life for the Sami. Sarek National Park Europes Hidden Natural TreasureA Land of AdventureBeing in such a beautiful and wild place makes me feel blessed to be alive. Summary 1 动词ing形式作主语一般直接放在句首，谓语动词用单数。 Telling whether it is morning or night is impossible. For hu
6、ndreds of years, looking after reindeer was a way of life for the Sami. Activity 3: Rewrite the sentences. Example It is challenging yet fascinating to hike through the mountains in the pathless Sarek. To hike through the mountains in the pathless Sarek is challenging yet really fascinating. Hiking
7、through the mountains in the pathless Sarek is challenging yet really fascinating.Page 29, Activity 2Activity 3: Rewrite the sentences. 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. Going on a
8、 hiking tour in Sarek in winter would hardly be possible due to the extreme cold.Studying abroadis both challenging and rewarding.Activity 3: Rewrite the sentences. 3.Honestly, it can be both exciting and terrifying to explore a vast unknown land. 4.It is good to adopt a positive attitude, even when
9、 things are difficult. Honestly, exploring a vast unknown land can be both exciting and terrifying.Adopting a positive attitude is good, even when things are difficult.Activity 3: Rewrite the sentences. 5. It is strongly advised to hire local guides, because they can offer accurate knowledge of Sare
10、k culture and history. Hiring local guides is strongly advised, because they can offer accurate knowledge of Sarek culture and history. Summary 2 it作形式主语与动词ing形式作主语的区别： It is both challenging and rewarding to study abroad. it作形式主语、不定式作主语后置时，句子侧重表语侧重表语部分部分，强调行为的特征、状态和给人的感受强调行为的特征、状态和给人的感受。 Studying a
11、broad is both challenging and rewarding. 动词动词-ing-ing形式作主语时句子形式作主语时句子侧重于主语侧重于主语，强调行为本，强调行为本身的具体内容，使句子更加生动。身的具体内容，使句子更加生动。用it作形式主语, 把动词-ing形式后置, 常用在下面句式中。1）It is no /little use doing sth 做某事没有/几乎没有用处It is worth doing sth 做某事是值得的It is a waste of time doing sth 做某事是浪费时间It is fun doing sth 便很有趣Examples
12、:It is no good quarrelling with him. 和他争吵没有好处。It is no use telling her not to worry. 告诉她不要着急也没有用。Its a waste of time arguing about it. 争论这事是浪费时间。2）用于“there be”结构中There is no saying when it will stop raining. 无法断定这场雨什么时候会停。There is no joking about such matters. 这种事开不得玩笑。Activity 4: Fill in each blank
13、 using the ing form.Xixi National Wetland Park, _ 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. coveringCombiningcombine cover grow take limit walk e
14、xperiencePage 29, Activity 3At 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 favourite activities. With trees, bushes, and colourful flowers _ along the riversides, the park shows different sides of beauty in differe
15、nt bine cover grow take limit walk experiencetakingwalkingexperiencinggrowingActivity 4: Fill in each blank using the ing form.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 trad
16、itional 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 ex
17、periencegrowinglimitingActivity 4: Fill in each blank using the ing form.Task: Translate the Chinese to complete the passage. Use the ing form where possible.Travelling to cold, dark, and remote Arctic Norway in mid-winter (在隆冬季节去寒冷、黑暗而偏远的北极圈内的挪威旅游) can be _ (激动人心的) especially for those _ (寻求完全不一样的体
18、验). _ (意识到) the lack of daylight and difficulties in transport is extremely important. fascinatinglooking for totally different experiencesRealisingPage 76, Activity 3, WorkbookLast January, we found a few mountain passes were closed, so _ (走动) was not easy, but _ (欣赏) the northern lights was an inc
19、redible experience.moving aroundappreciatingActivity 7: Translate the Chinese to complete the passage. Use the ing form where possible._ (在线订交通和宾馆) did help a lot. _ (想出如何拍照) in low light actually took us quite some time during our _ (筹划) stage. Finally, _ (雇一位当地导游) was necessary and helpful for this trip.Booking transportations and hotels onlineFiguring out how to take pictures planninghiring a local tour guideActivity 7: Translate the Chinese to complete the passage. Use the ing form where possible.Thank you!
