内容正文:
Part Ⅲ Grammar and usage & Integrated skills
第一板块 Grammar—Verbing forms as subjects and objects
观察下列句中加黑的部分,然后完成后面的归纳。
①(教材原文P16)Finally,during the most exciting part,the music takes a softer turn and ends on a bittersweet note,telling us how the couple transform into butterflies and fly away to be together forever.
②(教材原文P17)I love learning about country music and I keep asking them questions about it all the time!
③(教材原文P20)Boya did not say anything before playing the qin,yet Zhong Ziqi was able to paint a picture of great mountain ranges in his mind.
④(教材原文P20) Having someone that really understood his music pleased Boya,who never got tired of sharing his music with Zhong Ziqi.
⑤(教材原文P20)After he finished playing the piece,he destroyed the qin...
⑥(教材原文P20)...it's no use keeping the qin.
【自我归纳】
1.以上v.-ing 形式(加黑部分)在句中作主语的是④⑥;作动词宾语的是②⑤;作介词(短语)宾语的是③;作状语的是①。
2.⑥句中it作形式主语。
一、关于动词-ing 形式的基本情况
1.动词-ing形式是动词的一种非谓语形式,包括现在分词和动名词两种。
动词-ing形式在句中的语法作用:动名词在句中作主语、宾语、表语和定语,现在分词在句中作状语、宾语补足语和定语。
2.动词-ing形式的时态和语态:
语态
时态
主动语态
被动语态
一般式
doing
being done
完成式
having done
having been done
Reading aloud is a good way to learn a language.
大声朗读是学习语言的一种好方法。
Having studied his lessons very hard,he passed the exam.
努力学习了功课,他通过了考试。
The building being built now will be finished next month.
正在建设的建筑物下个月将完工。
二、动词-ing形式作主语
1.动词-ing形式作主语时,往往表示经常性、习惯性的动作,通常置于句首。
Saying is one thing,and doing is another.
说是一回事,而做是另一回事。
Having a walk every day helps to make one keep healthy.
每天散步有助于保持健康。
【名师点津】
动名词作主语时,谓语动词用单数。
Climbing mountains is really difficult for the old.
对于老人来说爬山确实困难。
2.形式主语it代替动词-ing形式作主语。
此类句式常见的有:
It's a waste of time doing sth.做某事是浪费时间
It's useless/worthwhile doing sth.做某事没用/是值得的
It's no good/use/fun doing sth.做某事没好处/没用/没意思
It is a waste of time persuading such a person to join us.
劝说这种人加入我们是浪费时间。
It is no good/use regretting for the past.
悔恨过去是没用的。
3.v.-ing形式和to do作主语时的区别。
v.-ing形式和to do都可以作主语。v.-ing形式作主语表示比较抽象的一般行为,to do作主语往往表示具体的或一次性的动作。
Playing with fire is dangerous.
玩