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(共24张PPT)
Discovering Useful Structures P29
新人教版选择性必修 Book 1
Unit 3 Fascinating parks
learning objectives：
1. recognize and summarize the function and meaning of the -ing form as the subject .
能辨认和总结动词ing形式作主语的功能和意义。
2. use the -ing form as the subject to describe a place in wrting .
在写作中能使用动词ing形式作主语来描述一个地方。
rewarding
bush
lung
adj. 值得做的；有益的
n. 灌木
n. 肺
reward v. 奖赏
1. Her hobby is collecting stamps.
2. He found her a charming girl.
3. Checking my watch,I see it’s 7:30am.
4. She enjoys drawing.
5. I found a bag lying on the ground.
What are the functions of the
–ing form in the sentences
作表语
作定语
作状语
作宾语
作宾语补足语
Activity 1
1. Translate the sentences in Chinese.
2.What are the functions of the -ing form
Getting here is quite difficult.
到达这里是相当困难的事。
Being in such a beautiful and wild place makes me feel blessed to be alive.
待在这样一个美丽又荒野的地方让我感觉活着很幸福。。
作主语。动名词作主语时，
谓语动词用单三形式。
Activity 2:
Find more sentences with the -ing form as the subject from the text . Translate them in Chinese and find the subject.
尽管太阳明亮地照耀着，区分是早上还是晚上这件事是不可能的。
作伴随状语
作原因状语
1.Find the sentence with the -ing form as the subject（主语） from Para.2
2 . Translate it in Chinese and find the subject.
到达这里是相当困难的事，所以除了萨米人，
很少有人曾见过萨勒克。
作结果状语
1.Find the sentence with the -ing form as the subject（主语） from Para.3
2 . Translate it in Chinese and find the subject.
数百年来，照顾驯鹿是萨米人的一种生活方式。
作伴随状语
1.Find the sentence with the -ing form as the subject（主语） from Para.4
2 . Translate it in Chinese and find the subject.
作伴随状语
Summary 1:
1.动词-ing作主语一般 直接放在句首，谓语动词用单数。
Walking is a good form of
exercise for both the young and the old.
Going to Hangzhou by train takes about 16 hours.
Activity3 ：Rewrite each of the following
sentences using the -ing form as the subject.How does the sentence focus change
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.
在人迹罕至的萨勒克徒步穿越山川既有挑战性，
也很迷人。
it作形式主语。不定式作真正主语
动名词作主语
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 hiking tour in Sarek in winter
Studying abroad
出国留学既有挑战性又有回报。
would hardly be possible due to the extreme cold.
由于极度寒冷，冬天几乎不可能在萨勒克进行徒步旅行。
is both challenging and
rewarding.
3. Honestly, it can be both exciting and terrifying to explore a vast unknown land.
can be both exciting and terrifying.
说实话，探索一片广阔的未知土地，既令人兴奋又令人恐惧。
Honestly, exploring a vast unknown land
5. 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.
我们强烈建议雇佣当地的导游，因为他们可以提供关于萨勒克文化和历史的准确知识。
4. It is good to adopt a positive attitude, even when things are difficult.
Adopting a positive attitude
即使事情很困难，采取积极的态度也是好的。
is good, even when things are difficult.
Summary 2：
it 作主语和动词-ing形式作主语的区别：
It is both challenging and rewarding
to study abroad.
it作形式主语时，句子侧重于表语部分的形容词，强调行为的特征、状态或给人的感受。
Studying abroad is both challenging and rewarding.
动词-ing形式作主语时，句子侧重于主语部分，强调行为本身的具体内容，使句子更加生动。
Activity 4：
Fill in each blank using the -ing form of a verb from the box and state its function .One word will be used twice .
combine cover grow
联合；结合 覆盖 种植;成长
take花费;乘坐;带走
limit walk experience
限制 走路 经历;体验
Xixi National Wetland Park
Fill in each blank using the -ing form of a
verb from the box and state its function.
One word will be used twice.
combine/ cover/ grow/ take /limit /walk /experience
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 people's favourite activities.
With trees, bushes, and colourful
flowers ____________ along the
covering
Combining
taking
walking
experiencing
定语
主语
主语
主语
主语
growing
定语
Fill in each blank using the -ing form of a
verb from the box and state its function. One word will be used twice.
combine cover grow take limit walk experience
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" .
growing
limiting
主语
定语
exciting
looking for totally different experiences
Realising
mountain passes 山口
incredible 奇妙的;不可思议的
Thank you!

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