Unit 4 Discovering Useful Structures （ppt课件）-2022新人教版（2019）《高中英语》选择性必修第二册.pptx

1、Unit4 Grammar past participles vs the-ing formObserve the sentences The next day was clear and mild,they were pleased to see the beautiful mountains looking out over the city.Seen from the train window,the mountains and forests of Canada looked massive.For both of them,the thought of crossing the wh

2、ole country by rail was exciting.Looking at the beautiful scenery,they both agreed that it was the most awesome journey they had ever taken.Look at the sentences from the text,translate them into Chinese and pay attention to the function of-ed and-ing forms.The next day was clear and mild,they were

3、pleased to see the beautiful mountains looking out over the city.Seen from the train window,the mountains and forests of Canada looked massive.第二天天气晴朗，温度适宜，他们看到壮美的群山俯瞰着整座城市，甚是欣喜。从车窗往外望去，加拿大巍峨的山脉和辽阔的森林尽收眼底。表语状语Observe the sentencesLook at the sentences from the text,translate them into Chinese and pa

4、y attention to the function of-ed and-ing forms.=When the mountains.were seen from the train window,For both of them,the thought of crossing the whole country by rail was exciting.Looking at the beautiful scenery,they both agreed that it was the most awesome journey they had ever taken.一想到可以坐火车横穿整个国

5、家，姐妹俩就激动不已。望着眼前的风景，姐妹俩一致认为这是她们所经历过的最棒的一次旅行。表语状语Observe the sentencesLook at the sentences from the text,translate them into Chinese and pay attention to the function of-ed and-ing forms.=When they looked at the beautiful scenery,The next day was clear and mild,they were pleased to see the beautiful

6、mountains looking out over the city.For both of them,the thought of crossing the whole country by rail was exciting.表语表语感到欣喜的令人兴奋的Observe the sentences1、英语中有很多与感觉有关的使令动词，其现在分词表示主动意义，即“令人的”，多用来修饰物；其过去分词表示被动意义，即“感到的”，多用来修饰人、人的声音或表情等。常用的这类词有：amazing令人惊讶的 amazed惊讶的 shocking令人震惊的 shocked感到震惊的 astonishing

7、令人惊讶的 astonished感到惊讶的 inspiring鼓舞人心的 inspired受鼓舞的disappointing令人失望的 disappointed感到失望的frightening令人害怕的 frightened受惊的moving感人的 moved感动的pleasing令人高兴的 pleased高兴的tiring令人疲惫的 tired疲惫的satisfying令人满意的 satisfied感到满意的 puzzling令人迷惑的 puzzled困惑的 Seen from the train window,the mountains and forests of Canada look

8、ed massive.Looking at the beautiful scenery,they both agreed that it was the most awesome journey they had ever taken.Observe the sentences状语状语 被从火车车窗望到被动望着美景主动 (catch)in a heavy rain,he was late for the interview.(rush)into the classroom,Tom bumped into his teacher.CaughtRushing2、句子主语和过去分词（短语）之间是被动

9、关系，和现在分词（短语）之间是主动关系。If caught,the police will punish the thief.If caught,the thief will be punished by the police小偷如果被抓，会受到警方的惩罚。（）（）Past participle-edPresent participle-ing作表语描述情感：感到感到的描述人/物/地点：令人的作状语与逻辑主语之间的关系是被动的与逻辑主语之间的关系是主动的Summarize注意：有些使令动词，如dress，seat，absorb等，其过去分词无论作定语还是表语，都无被动的意味。dress one

10、self in=be dressed inseat oneself on=be seated onabsorb oneself in=be absorbed in。这种现象缘于反身代词的用法：主语和宾语为同一人，主语是动作的发出者，又是动作的承受者，这就出现了被动语态或过去分词不表示“被动”的语言现象。1.The girls were _ to see such an open country.The farms covered a very large area,which was _.2.Going into the wilderness alone can be_.Do you feel

11、 _ when going into the wilderness alone?3._ from the top of the mountain,the scenery was really fascinating._ the scenery from the top of the mountain,I was fascinated by the autumn.4._ eastwards,you will pass the Canadian Rockies.Finally,the company-_ by its new manager-started to make a profit.ama

12、zedamazingfrighteningfrightenedSeenSeeing see frighten headamazeHeadingheadedPractice IPractice IIexcitetiresatisfyboreExampleStep 1切分主句与改写部分Step 2找到改写部分的动词Step 3在主句中找到逻辑主语Step 4确定主被动关系时间状语状语从句非谓语动词作状语Practice IIIPractice IIITransformed from a quarry,Butchart Gardens has now become a famous destinat

13、ion for travellers.Compared with other cities in Canada,Quebec City seems more like a charming European village.Practice IIIPractice VHearing that the Sea-to-Sky Highway was Canadas most scenic drive,they made West Vancouver their first destination.Not knowing where to start their sightseeing in Luo

14、yang,they went to the Tourist Information Centre.3.那些孩子们跑出房间，愉快地笑着、说着。These children ran out of the room,laughing and talking merrily.2.假如多给些照顾，那些树会长得更好。Hearing the news,they all jumped with joy.1.听到消息，他们都开心的跳了起来。Given more attention，the trees could have grown better.4.这个老人经常去散步，身后跟着他的狗。The old man often takes a walk,followed by his dog.