Unit 3 Faster, higher, stronger
Period?2? Using language?知识点梳理
单元语法精讲精练-v.-ing作主语
I.语法感知
感知以下课文原句,补全方框下的小题
1.Knowing where the ball would go wasn’t easy. 2.In this way,practising day in and day out helped Stephen sharpen his skills.
3.Playing basketball was his dream.
动名词作主语往往表示经常性、习惯性的动作,谓语动词用单数。在句1, 2,3中都是动名词作主语。
II.语法精析——动名词作主语
一、动名词作主语往往表示一种概念、习惯或经验,谓语动词用单数。
Working in these conditions is not a pleasure but a suffering.在这种条件下工作不是一件愉快的事而是一件痛苦的事。
二、动名词作主语有如下几种常见情况:
1.直接位于句首作主语。例如:
Swimming is a good sport in summer.
在夏天游泳是好的运动。
2.用 it 作形式主语,把动名词(真实主语)置于句尾。
It is no good spending too much time on the Internet.
在网上花太多时间是没有好处的。
常见的动名词(短语)作主语的句型:
It’s no good doing sth.做某事是没有好处的。
It’s no use doing sth.做某事是没有用处的。
It’s a waste of time doing sth.做某事是浪费时间。
常见的能用于这种结构的形容词还有:nice,better,wonderful,enjoyable,interesting,foolish,difficult,useful,useless,worthwhile等。
注意:important,essential,necessary 等形容词不能用于上述结构。
3.用于布告形式的省略结构中。
No smoking. =No smoking is allowed (here ).
禁止吸烟。
4.动名词的复合结构作主语
当动名词有自己的逻辑主语时,常可以在其前面加上形容词性物主代词或名词所有格形式,构成动名词的复合结构。这时,名词或代词的所有格作动名词的逻辑主语。动名词的复合结构也可以在句中作主语。例如:
Their coming to help was a great encouragement to us.
他们来帮助我们对我们是个很大的鼓励。
三、动名词作主语与动词不定式作主语的比较
动词不定式和动名词都可以用作主语。在意义上相近。但动名词多用来表示一般的、泛指的或抽象的动作,强调的是事情本身。而不定式多用来表示具体的某一次行为或将来的动作,强调的是动作本身,不过有时二者之间区别很小。比较:
Collecting stamps can enlarge one’s knowledge.
集邮可以扩大知识面。
To visit China is my next goal.
去中国旅游是我的下一个目标。
III.高考链接
A.单句语法填空
1.____________(walk) every day does good to your health.
2.It’s a waste of time ____________(play) video games every day.
3.____________(watch) too much TV does harm to our eyes.
4.It is no use ____________(reason) with such a stubborn person.
5.It is very important for us ____________(focus) on our lessons.
6.____________(finish) this job in one day is impossible.
7.____________(listen) to soft music will make you relaxed.
8.It is necessary for us ____________(form) a good habit when we’re young.
9.Her ____________(lose) her new bike really made her mother very angry.
10.There is no ____________(deny) that China will protect its own interests.
11.____________(play) with such lovely children is very interesting.
12.It is important for the man ____________(obtain) a lot of knowledge.
13.Working with so selfish a person ____________(be) a terrible thing.
14.____________(take) apart the old toys is the boy’s habit.
答案:
Walking 2.playing 3.Watching 4.reasoning 5.to focus 6.To finish 7.Listening
8.to form 9.losing 10.denying 11.Playing 12.to obtain 13.is 14.Taking
B.完成句子
1. ____________________helps make one healthy.
每天早晨做运动有助于人的健康。
2. ____________________is very difficult.
自学英语是很难的。
3.____________________ will make you exhausted.
爬上这座山会使你筋疲力尽。
4.____________________ in the morning will do you a lot of good.
早晨大声朗读英文对你有很大的好处。
5.For him____________________is not easy.
要他承认错误是不容易的。
6.It is useless ____________________.
试图和这样一个固执的人争论是没有用的。
7.It is natural for a mother____________________.
一位母亲担心所有的孩子是很正常的事情。
答案:
1.Taking exercise every morning
2.Learning English all by yourself
3.Climbing up the mountain
4.Reading English aloud
5. to admit his mistakes
6.trying to argue with such a stubborn person
7. to worry about all her children
C.单句写作
1.人们为钱而结婚是错误的。(marry)
__________________________________________________
2.暴露在阳光下太久对你的皮肤有害。(expose)
__________________________________________________
3.回复邮件是我每天的工作。(answer)
__________________________________________________
4.一般来说,了解自己是很难的。(know)
__________________________________________________
5.在电脑前面久坐是没有好处的。(sit)
__________________________________________________
6.是那个年轻人欺骗他放弃了计划。(cheat)
__________________________________________________
7.上周文坛突然冒出了一位有才华的年轻人。(burst onto)
__________________________________________________
8.老师给每个儿童布置了不同的任务。(assign)
__________________________________________________
9.他是唯一到达山顶的人。(the only...to do...)
__________________________________________________
10.是司机的粗心导致了这次可怕的事故。(contribute to)
__________________________________________________
答案:
1.It is wrong for people to marry for money.
2.Being exposed to the sun too long does harm to your skin.
3.Answering emails is my work every day.
4.Generally speaking,knowing oneself is very hard.
5.It is no good sitting in front of a computer for a long time.
6.It was the young man that cheated him into giving up his plan.
7.A talented young man burst onto the literary scene last week.
8.The teacher assigned each of the children a different task./The teacher assigned a different task to each of the children.
9.He was the only person to arrive at the top of the mountain.
10.It was the driver’s carelessness that contributed to the terrible accident.