資源簡(jiǎn)介

(共28張PPT)
Book 1 Unit 3
Discover useful structures
V-ing form as the subject
01
單擊此處添加標(biāo)題
In this class, you will
1. recognize and summarize the function and meaning of the -ing form as the subject;
2. use the -ing form as the subject to describe a place in writing.
01
01
單擊此處添加標(biāo)題
Have you ever seen these signs
Smoking/ Littering/ Spitting is prohibited/banned.
動(dòng)詞Ｖ-ing作主語(yǔ)
01
單擊此處添加標(biāo)題
Identify the function of the -ing form in the sentence below.
1. Getting here is quite difficult.
2. Being in such a beautiful and wild place makes me feel blessed to be alive.
作主語(yǔ)
作主語(yǔ)
1、概念
動(dòng)詞－ing是動(dòng)詞的一種非謂語(yǔ)形式，包括現(xiàn)在分詞和動(dòng)名詞兩種。
２.動(dòng)名詞的特點(diǎn)
(1)動(dòng)名詞是從動(dòng)詞變化而來(lái)的,所以它保留了動(dòng)詞的某些特征,動(dòng)名詞不能單獨(dú)作謂語(yǔ),沒(méi)有人稱和數(shù)的變化,但可以有自己的賓語(yǔ)和狀語(yǔ),還有時(shí)態(tài)和語(yǔ)態(tài)的變化。
(2)動(dòng)名詞最大的特點(diǎn)是它相當(dāng)于一個(gè)名詞,因此,動(dòng)名詞可以在句中作主語(yǔ)、賓語(yǔ)、表語(yǔ)等。
語(yǔ)態(tài)
時(shí)態(tài) 主動(dòng) 被動(dòng)
肯定 否定 肯定 否定
一般式 doing not doing being done not being done
完成時(shí) having done not having done having been done not having been done
2、動(dòng)名詞的時(shí)態(tài)和語(yǔ)態(tài)
Observe and discover 1
Travelling is a good way to relax.
Playing basketball makes our body strong.
Listening, speaking, reading and writing ______ (be) basic skills of a language.
are
01
單擊此處添加標(biāo)題
1. I wake up to the sound of the wind buffeting the cloth of my tent.
2. Even though the sun is brightly shining, telling whether it is morning or night is impossible.
3. This ice melted, leaving behind about 100 glaciers.
4. Spreading out before me, branches of the Rapa River flow through the valley below.
定語(yǔ)
主語(yǔ)
狀語(yǔ)
狀語(yǔ)
01
單擊此處添加標(biāo)題
5. Getting here is quite difficult, so apart from the Sami very few people have ever seen Sarek.
6. For hundreds of years, looking after reindeer was a way of life for the Sami.
7. But every spring, a small number of Sami still follow their reindeer into the valleys of Sarek, living in tents or old cottages and enjoying their traditions.
主語(yǔ)
主語(yǔ)
狀語(yǔ)
01
單擊此處添加標(biāo)題
8. For example, this morning my breakfast is flat bread warmed over a fire, dried reindeer meat, and some sweet and sour berries that I found growing near my tent.
9. Being in such a beautiful and wild place makes me feel blessed to be alive.
10. Here I am, alone under this broad sky, breathing the fresh air, and enjoying this great adventure.
狀語(yǔ)
補(bǔ)語(yǔ)
主語(yǔ)
01
單擊此處添加標(biāo)題
一、動(dòng)詞-ing作主語(yǔ)的三種形式：
1.直接放在句首，表示經(jīng)常的、習(xí)慣性的動(dòng)作或狀態(tài)，謂語(yǔ)動(dòng)詞用單數(shù)。
例句：
1) Walking is a good form of exercise for both the young and the old.
散步對(duì)年輕人和老年人都是一種很好的鍛煉方式。
2) Watching news on TV has become a routine for me.
3) Going to Hangzhou by train takes about 16 hours.
4) Asking a woman’s age is impolite in our country.
Observe and discover 3
Playing video games
a waste of time.
is
It
is
a waste of time
playing video games.
形式主語(yǔ)
真正主語(yǔ)
2. it在句首作形式主語(yǔ)，動(dòng)詞-ing形式后置作真正的主語(yǔ)，用形容詞或名詞作表語(yǔ)。
It +be +a waste of time doing
做……是浪費(fèi)時(shí)間的
It is/was no good/use doing
做……是沒(méi)用處的
It is/was worthwhile doing
做……是值得的
There is no doing...
無(wú)法……; 不允許……
常用it作形式主語(yǔ)，v-ing形式作真正主語(yǔ)的句型：
1. 說(shuō)服他加入我們就是在浪費(fèi)時(shí)間。
2. 在這兒等是沒(méi)用的, 我們走吧。
3. 在教育上花錢是值得的。
4. 和不誠(chéng)實(shí)的人交朋友是沒(méi)有好處的。
It's a waste of time persuading him to join us.
It’s no use waiting here. Let’s go.
It is worthwhile spending money on education.
There is no good making friends with the dishonest men.
動(dòng)詞-ing形式的否定形式通常是在其前加not
1) Not knowing how to use a computer makes it more difficult for him to do his academic research.
不知道如何使用電腦使他更難進(jìn)行學(xué)術(shù)研究。
2) Not passing the exam made him disturbed.
未通過(guò)考試使他煩惱。
02
2 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.
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.
動(dòng)名詞與不定式作主語(yǔ)的區(qū)別
動(dòng)名詞作主語(yǔ)，表示經(jīng)常性，習(xí)慣性的行為，
不定式作主語(yǔ)表示具體的或一次性的動(dòng)作。
2 Rewrite each of the following sentences using the -ing form as the subject.
1) It is both challenging and rewarding to study abroad.
To study abroad is both challenging and rewarding.
Studying abroad is both challenging and rewarding.
2) It would hardly be possible to go on a hiking tour in Sarek in winter due to the extreme cold.
To go on a hiking tour in Sarek in winter would hardly be possible due to the extreme cold.
Going on a hiking tour in Sarek in winter would hardly be possible due to the extreme cold.
3) Honestly, it can be both exciting and terrifying to explore a vast unknown land.
Honestly, to explore a vast unknown land can be both exciting and terrifying.
Honestly, exploring a vast unknown land can be both exciting and terrifying.
4) It is good to adopt a positive attitude, even when things are difficult.
To adopt a positive attitude is good, even when things are difficult.
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.
Page 29, Activity 2
Summary
it 作形式主語(yǔ)與動(dòng)詞ing形式作主語(yǔ)的區(qū)別？
▲it 做形式主語(yǔ)、不定式后置時(shí)，句子側(cè)重表語(yǔ)部分，強(qiáng)調(diào)行為的特征、狀態(tài)和給人的感受；
▲動(dòng)詞ing形式作主語(yǔ)時(shí)句子側(cè)重于主語(yǔ)，強(qiáng)調(diào)行為本身的具體內(nèi)容，使句子更加生動(dòng)。
3. 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
growing
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" .
limiting
growing
1. Combining city life, nature, and wetlands makes the park a popular destination both for tourists and local residents.
2. 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 people's favourite activities.
3. In order to better develop as well as preserve this place, limiting human impact on Xixi Wetland was considered by the park designers.
Find the sentences with v-ing form as the subject.

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