人教版（2019）选择性必修第一册Unit 3 Fascinating Parks Discover useful structures课件（共25张）

(共25张PPT)
Unit 3 Fascinating Parks
Discover Useful Structures
In this class, you will
Summarise the function and meaning of the -ing form as the subject;
To learn and practise the -ing form used as subject.
Use the -ing form as the subject to describe a place in writing.
Learning objectives
Answer the following questions：
1. 动名词有哪些特征？
2. 动名词作主语有哪些用法
Question leading
Activity 1: Observe the sentences.
Getting here is quite difficult.
Being in such a beautiful and wild place makes me feel blessed to be alive.
subject in the –ing form
+ verb
Presentation
Sarek National Park
—Europe’s Hidden Natural Treasure
A Summer Where the Sun Never Sleeps
I wake up to the 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. I’m 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 form as the subject from the text.
Sarek National Park
—Europe’s Hidden Natural Treasure
A Land of Mountains and Ice
Getting here is quite difficult, so apart from the Sami very few people have ever seen Sarek.
Sarek National Park
—Europe’s Hidden Natural Treasure
Man at Peace with Nature
For hundreds of years, looking after reindeer was a way of life for the Sami.
Sarek National Park
—Europe’s Hidden Natural Treasure
A Land of Adventure
Being in such a beautiful and wild place makes me feel blessed to be alive.
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 hundreds of years, looking after reindeer was a way of life for the Sami.
Summary 1
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 through the mountains in the pathless Sarek is challenging yet really fascinating.
Activity 3: Rewrite the sentences using -ing form as the subject.(P29 2)
It is both challenging and rewarding to study abroad.→
It would hardly be possible to go on a hiking tour in Sarek in winter due to the extreme cold. →
Going on a hiking tour in Sarek in winter would hardly be possible due to the extreme cold.
Studying abroad
is both challenging and rewarding.
Honestly, it can be both exciting and terrifying to explore a vast unknown land. →
It is good to adopt a positive attitude, even when 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.
It is strongly advised to hire local guides, because they can offer accurate knowledge of Sarek culture and history. →
Hiring local guides is strongly advised, because they can offer accurate knowledge of Sarek culture and history.
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，句子侧重表语部分，强调行为的特征、状态和给人的感受。
Studying abroad is both challenging and rewarding.
动词-ing形式作主语时句子侧重主语，强调行为本身的具体内容，使句子更加生动。
Summary 2
常用-ing形式作主语的句型
It is a waste of time doing 做……是浪费时间的
It is no good/use doing 做……是没好处/用处的
It is worth doing 做……是值得的
There is no doing 不能...、不允许...
There is no denying that... 不能否认的是
There is no point doing 做某事是没意义的
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. 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 favourite activities. With trees, bushes, and colourful flowers __________ along the riversides, the park shows different sides of beauty in different seasons.
covering
Combining
combine cover grow take limit walk experience
Activity 4: Fill in each blank using the –ing form.(P29 3)
taking
walking
experiencing
growing
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”.
growing
limiting
combine cover grow take limit walk experience
At Xixi, taking a boat tour, walking along paths, and experiencing 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 growing along the riversides, the park shows different sides of beauty in different seasons.
Activity 5: Find sentences with the –ing form as the subject.
In order to better develop as well as preserve this place,
limiting human impact on Xixi Wetland was considered by the park designers…. With trees growing in the shallows, the wetland is a natural system for providing clean water and producing oxygen, which makes it the “green lungs of Hangzhou”.
Activity 6: Translate the Chinese to complete the passage. Use the –ing form where possible.（P76 3）
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验). ____________ (意识到) the lack of daylight and difficulties in transport is extremely important. Last January, we found a few mountain passes were closed, so ______________ (走动) was not easy, but ____________ (欣赏) the northern lights was an incredible experience.
fascinating
looking for totally different experiences
Realising
moving around
appreciating
___________________________________ (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 online
Figuring out how to take pictures
planning
hiring a local tour guide
V-ing 作主语时
it作形式主语的句型
It is a waste of time doing
It is no good/use doing
It is worth doing
There is no doing
谓语动词用单数
it作形式主语与动词ing形式作主语的区别
Summary
V-ing 作主语
1.It is no use (keep) silent about such a matter.
2.His (get) up late in the morning made him late for class.
3.Swimming (be) a good sport in summer.
4.It is a waste of time (try) to persuade him to give up playing computer games.
5.There is no (joke) about such matters.
6.It is necessary for us students (help) each other in trouble.
7.Since then，________(find) ways to grow more rice has been his life goal.
keeping
getting
is
trying
Ⅰ.用所给词的适当形式填空
joking
to help
finding
Consolidation
Since Tom went to high school, __________(watch) TV __________(become) a routine for him. His mother always said, “ It is a waste of time __________(spend) hours in front of the TV.” ________ , Tom always answered, “ I can keep _______ balance between studying and watching TV. ” As you know, talking is ________(easy) than doing. Later, Tom didn’t do well _________the final exam and he was very sad. His mother knew there was no point ___________(scold)Him. She told him, “It’s no use __________(cry) over spilt milk and __________ you can do now is just try your best to study for the next exam.”
watching
has become
spending
However
a
easier
in
scolding
crying
what
Ⅱ.语法填空
1. 说服他加入我们就是在浪费时间。
2. 在这儿等是没用的, 我们走吧。
3. 在教育上花钱是值得的。
4. 和不诚实的人交朋友是没有好处的。
It's a waste of time persuading him to join us.
It’s no use waiting here. Let’s go.
It is worth spending money on education.
There is no good making friends with the dishonest men.
Ⅲ.翻译句子