人教版(2019) 选择性必修第二册Unit 4 Journey across a vast land Discover useful structures 课件(共27张PPT)

(共27张PPT)
UNIT 4 JOURNEY ACROSS A VAST LAND
　Learning About Language
Discover Useful Structures
Past participles VS the -ing form
如果句中已经存在一个_______动词，那么在没有_____________的情况下，这个句子就是 ______句，那么,另一个动词要选用______动词。
Review
谓语
连词或引导词
简单
非谓语
使用非谓语动词的条件：
谓语动词 or 非谓语动词？
填非谓语动词：句子中已有_________且无________。
非谓语动词的形式：
1
2
谓语动词
连词
目的、将来，用________
主动、进行，用________
被动、完成，用________
to do
ing
done
Review
3
分词：现在分词和过去分词
V-ing
Done
1
2
过去分词
复习过去分词作定语
过去分词作表语
3
过去分词作状语
1
复习过去分词作定语
a （fly) bird（一只飞鸟）
___________（rise) sun（冉冉升起的太阳）
（pollute) water（污水）
the （rule）class （统治阶级）
the （rule) class (被统治阶级）
flying
rising
polluted
ruling
ruled
语态上的区别：现在分词—主动；过去分词—被动
现在分词(V-ing)和过去分词(V-ed)作定语
时间上的区别：现在分词—正在进行；过去分词—已经完成
现在分词(V-ing)和过去分词(V-ed)作定语
一片叶子：a （fall) leaf （正在飘落）
a （fall）leaf (已经落下)
一个国家：a （develop）country（发展中）
a （develop）country(发展过)
水： （boil）water（正在沸腾）
(boil) water (已经烧开)
falling
fallen
developing
developed
boiling
boiled
1. The man _________(stand) there is our teacher.
2. I don't like the composition _________(write)in pencil．
3. The trees _________(blow) down in the storm have been moved.
4. With _________(fall) leaves _______(bury) in the earth every year, the soil becomes richer and richer.
5. _______(offer) an important role in a new movie, Andy has a chance to become famous.
standing
written
blown
fallen
buried
Offered
2
过去分词作表语
4. The girls were _________(amaze) to see such an open country.
5. There were many people waiting at the bus stop, and some of them looked very anxious and _____________(disappoint).
6. Because John was __________(absorb) in painting, he didn’t notice evening approaching.
以上过去分词在句子中_________________成分
表语
Filling and discover
amazed
disappointed
absorded
现在分词(V-ing)和过去分词(V-ed)作表语
注意：①现在分词作表语表示主语的特征(令人/使别人感到……) （修饰物）
②过去分词作表语表示主语的状态或者主观心理感受。（人感到...）（修饰人）
exciting 令人激动的 excited 激动的，兴奋的
surprising 令人惊讶的 surprised 惊讶的
encouraging 令人鼓舞的 encouraged 受到鼓舞的
frightening 令人惊恐的 frightened 受惊的
interesting 令人感兴趣的 interested 感兴趣的
moving 令人感动的 moved 感动的
pleasing 令人高兴的 pleased 高兴的
shocking 令人震惊的 shocked 震惊的
tiring 令人劳累的 tired 感到劳累的
worrying 令人担心的 worried 担心的
satisfying 令人满意的 satisfied 满意的
puzzling 令人迷惑的 puzzled 迷惑的
分词形容词由情绪动词通过加ed或ing构成
1. Like humans, polar bears can feel pain, have emotions and can be ___________ (frighten).
2. After the satisfying explanation, the puzzled student looked __________ (delight).
3. We were _________(confuse) when we confronted the confusing question.
frightened
delighted
confused
3
过去分词作状语
1. __________(see) from the train, the mountains and forests of Canada looked massive.
2. _______(hit) by a lack of fresh air, my head ached.
3. ___________(exhaust), I slid into bed and fell asleep quickly.
以上过去分词在句子中_________________成分
状语
Filling and discover
Seen
Hit
Exhausted
现在分词(V-ing)和过去分词(V-ed)作状语
________(see)from the hill, you will find the city looks like a big garden.
_______(see)from the hill, the city looks like a big garden.
______________(encourage) her students, the teacher went to office.
___________(encourage)by the teacher, the girl was very happy.
Seeing
Seen
Encouraged
Encouraging
1. 找逻辑主语
2. 判断主动被动
主谓关系
动宾关系
动宾关系
主谓关系
现在分词(V-ing)和过去分词(V-ed)作状语
________(see)from the hill, you will find the city looks like a big garden.
_______(see)from the hill, the city looks like a big garden.
______________(encourage) her students, the teacher went to office.
___________(encourage)by the teacher, the girl was very happy.
Seeing
Seen
Encouraged
Encouraging
方式状语/时间状语
方式状语/时间状语
原因状语/时间状语
时间状语
1. My interest in language developed early on, _________(combine) my love of traveling with my love of meeting new people.
2. When ________(complete), the canal will connct the river with the lake.
3. ________(give) another hour, I can also work out this problem.
4. ________(beat) by the opposite team, we didn’t lose heart and encouraged each other.
5. The old man got on the bus, _________(support) by a girl.
combining
completed
Given
Beaten
supported
4
过去分词的注意事项
注意1：部分过去分词来源于系表结构，作状语时不表示“被动关系”而重在描述主语的状态，其前不用being。这样的过去分词及短语常见的有：lost in(陷入某种状态)、seated(坐着的)、hidden(躲着)、lost/absorbed(沉溺于)、dressed in(穿着)、tired of(厌烦了)等。
1. __________(absorb) in deep thought, she didn’t hear the sound.
2. _________(dress) in a new dress, she looks very beautiful.
3. __________(interest) in books, he forgot his task his teacher assigned to him.
Absorbed
Dresseded
Interested
1. ________ (give) that he has worked for a whole day, he deserves to have a rest.
对比：_______(give) him the chance, I didn’t feel regretful.
2. ____________ (consider) the situation, he decided to tell the truth.
对比：__________(consider) one of the seven world wonders, the Great Wall attract millions of tourists every year.
3. Frankly _________(speak), I do love him.
Given
Considering
speaking
注意2：given(鉴于)/considering(考虑到)/judging from等可独立引导句子，作用相当于介、连词
Giving
Considered
1. If I am offered great help, I can get rid of all the difficulties.
If offered great help, I can get rid of all the difficulties.
2. When they were first introduced to the market, these products enjoyed great success.
When first introduced to the market, these products enjoyed great success.
注意3：在时间，条件等状语从句中，如果从句主语与主句一致，且从句主语后有be动词，则主语和be动词可以省略
Example:
Step 1
切分主句与改写部分
Step 2
找到改写部分的动词
Step 3
找到逻辑主语
Step 4
确定主被动关系
改写部分
主句部分
时间状语
被动关系
即学即练
P41练习3.
P41练习3.
即学即练
Rewrite the sentences
Butchart Gardens was transformed from a quarry. It has now become a famous destination for travellers.
________________________________________________________ ________________________________________________________
2.If you compare Quebec City with other cities in Canada, it seems
more like a charming European village.
________________________________________________________
________________________________________________________
Transformed from a quarry, Butchart Gardens has now become a famous destination for travellers.
Compared with other cities in Canada, Quebec City seems more like a charming European village.
P41练习3.
3. They did not know where to start their sightseeing in Luoyang, so
they went to the Tourist Information Centre.
______________________________________________________ _______________________________________________________
4.When they heard that the Sea-to-Sky Highway was Canada’s most
scenic drive, they made West Vancouver their first destination.
_______________________________________________________
_______________________________________________________
Not knowing where to start their sightseeing in Luoyang, they went to the Tourist Information Centre.
Hearing that the Sea-to-Sky Highway was Canada’s most scenic drive, they made West Vancouver their first destination.
P41练习1.