高中英语人教版（新课程标准）必修4 Unit4 Working the land课件(28张PPT)

课件28张PPT。Unit 2
Working the land
Period 4 Verb-ing Form as Subject and ObjectLearning about Language动词-ing形式作主语和宾语 1. is his hobby.(唱歌)Singing2. is the best way to lose weight.(做运动)Doing exercise3. is a waste of time.(玩电脑游戏)Playing computer games4. is dangerous. (开车开得太快)Driving too fast Singing is my hobby.
Doing exercise is a good way to lose weight.
Playing computer games is a waste of time.
Driving too fast is dangerous.1.动词-ing作_______，放在句____
谓语动词用 。主语单数首1. 直接置于句首
(1)Playing tricks on others is something we
should never do.
捉弄别人是我们万万不能干的。
(2)Learning new words is very important
for me. 学习新单词对我来说非常重要。
(3)Talking is easier than doing.
说比做容易。动词-ing形式作主语的位置2. 用形式主语it，把真正的主语-ing形式移
置句尾。
(1)It is useless trying to argue with Shylock.
和夏洛克争辩是没有什么用的。
(2)It’s worth making the effort.
这事值得努力去做。
(3)It is pleasant working with you.
跟你在一起工作是令人愉快的。It + be + a waste of time doing
做……是浪费时间的
It is/was no good/use doing
做……是没益/用处的
It is/was worth/worthwhile doing
做……是值得的
There is no sense in doing 做……没有道理常用-ing形式作主语的句型有：Dr. Yuan enjoys__________________ ，______________and reading.playing the violinswimmingDr. Yuan dreams of_________ (grow) each ear of rice as big as an ear of corn.growingDr. Yuan enjoys playing the violin ,swimming and reading.
Dr. Yuan dream of growing each ear of rice as big as an ear of corn.
Dr. Yuan awake from his dream with the hope of producing a kind of rice that can could feed more people.
动词-ing作______，
既可作__________, 又可作_________.宾语动词宾语介词宾语1. 只能后接动词-ing形式作宾语的动词或短
语, 常见的有avoid，consider，enjoy，
keep，finish，suggest，dislike，delay，
escape，cannot help，imagine，mind，
miss，practise，cannot stand，excuse，
fancy，give up，put off，risk等。如：
I can’t avoid going.
我不能不去。动词-ing形式作宾语2. 既可接动词-ing又可接不定式作宾语的
动词，常见的有：begin，start，
continue，like，love，prefer，by，
mean，forget，remember，hate等。
A. 在like，love，hate，prefer等动词之
后，用-ing或不定式意义上没有什么不
同，只是侧重点有些不同，动词-ing形式表示泛指的动作，不定式表示具体的
一次性动作。B. 在begin/start，continue之后，用动
词-ing和不定式，意义无甚区别，
尤其是当主语是人的时候。 C. 在动词forget，remember，regret之
后，用动词-ing与不定式意义不同。
动词-ing表示动作先于谓语发生，
不定式表示后于谓语动作。如：
I remember posting the letter.
我记得我已把信寄了。
I’ll remember to post the letter.
我会记着去寄信的。
I shall never forget seeing the famous writer.
我永远不会忘记见到过那位著名作家。
Don’t forget to write to your mother.
不要忘了给你母亲写信。 D. 在try，mean之后，意义各不相同，
如try to do (设法)，try doing (试试)，
mean to do (打算，有意要做)，mean
doing (意思是，意味着)。 如：
We must try to get everything done in time.
我们必须设法及时把一切搞好。
Let’s try doing the working in some other
way. 我们用别的方法做这个工作试试。
I didn’t mean to make you angry.
我并不想让你生气。
Your plan would mean spending hours.
你的计划意味着要花费几个小时。 E. go on doing和go on to do:
go on doing 继续做一直在做的事；
go on to do 接着做另一件事。如：
Please go on doing the same exercise.
请接着做同一个练习。
Please go on to do the other exercise.
请做另外一个练习。F. stop doing与stop to do:
stop doing 停止做;
stop to do 停下正在干的事去干另一件事。
如：
We stopped talking.
我们停止了交谈。
We stopped to talk.
我们停下来去谈话。3. 作介词宾语
下列短语中的to都是介词，所以后面
跟名词或-ing形式：devote to，object
to，pay attention to，get down to，
lead to，look forward to，stick to，
be used to等。语法填空
As a young man, Li Ming dreamt of (become)
a scientist. He enjoyed (study) all the subjects at
school. But when he saw the need for doctors in the
poor countryside, he decided (devote) himself to
___(look after) sick people. After (graduate)
from Shanxi medicine university, he became a doctor
in his hometown. He cares little about (make)
money. He always manages (help) poor people.
When some poor villagers come for help, he seldom
asks them for charge. He even offers some money to
them. He is never afraid of (become) poor. He is
only concerned about people’s health.becomingstudyingto devotelooking aftergraduating makingto helpbecoming1.He stopped ________and have a rest.(smoke)
2.He really must stop_______
3. I once tried ___________French(learn)
4.Let’s try _________at the back door.(knock)
5.I didn’t mean ________your feeling.(hurt)
6. This word means ________out at once.(set)
7.I can’t help _____the room.for I am too busy(clean)
8.After hearing the joke, we can’t help _________(laugh)
9.Water is used to _______flowers(water)
10.I am used to _____________early..(get)
11.Though it rained,they went on_________.(work)
12.We have finished Part 1.Let’s go on _________P 2(Learn)to smokesmokingto learnknockingto hurtsettingcleanlaughingwatergetting upworkingto learnSummary1.动词-ing作_______，放在句____
谓语动词用_______ 。
2.动词-ing作____，既可作_________,又可作_________.宾语动词宾语介词宾语主语首单数…is his/her habit.
He/She enjoys …
He/She manages …
He/She dreams of …
He/She hates …
… makes him/her happy/sad.
He/She cares about … Talk about your partner! Remember to use Verb-ing and to do as much as possible. Play a game!1. Finish off the Ex.4 on P13.2. Do more exercises to strengthen
the result.