Unit 4 语法 教案 高中英语人教版(2019)选择性必修第一册
- 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。
共案个案Unit 4 Discovering useful
structures
动词-ing形式的用法
一、教学目标
1.To understand v-ing in the reading passage.
2.To master the functions of v-ing in the sentence.
e v-ing properly for epressions and writing.
二、教学重难点
1. Understanding the functions of v-ing in the sentence.
2. Memorize the rules clearly.
三、教学过程
Step1. Lead in
Find out sentences that use v-ing in the reading passage.(p.38)
Step2. Presentation
1.Let the students find sentences themselves.
2.Lead students to analyse sentence structures.
e PPT to present uses of v-ing.
4.Students try to translate some sentences.
nguage points
1.–ing 分词的构成
一般式(主动)doing;(被动)being done
完成式(主动)having done (被动)having been done
复合结构sb’s doing
否定式: not+ --ing/not having(been) done
2.一般式和完成式的用法
--ing 分词的一般式表示和谓语动词所表示
的动作同时进行的一个动作;完成式表示
先于谓语动词动作之前的一个动作。如:
Walking along the street, he caught sight of an old friend of his.
Not having studied his lessons very hard, he failed the examinations.
3.---ing分词的被动式
当-ing 分词与它的逻辑主语构成被动关系时,需要用被动形式。根据-ing分词动作发生的时间,-ing分词的被动式分为一般被动式(being done)和完成被动式(having been done), 如:
The question being discussed is very important.
Having been praised by the teacher, he works even harder.
4.---ing分词的句法功能
1)--ing 分词作主语
Learning English has become a part of his life.
It is no use trying to repair the ship.
2) ---ing分词作宾语
以下动词必须跟---ing分词作宾语:admit/appreciate/avoid/consider/delay/deny/dislike/enjoy/escap e/excuse//fancy/finish/imagine/keep/mind/miss/postpone/put
off/practise/resist/risk/stand/ stop/ suggest/ give up/cannot help 3)--ing 分词作表语。如:
Our job is playing all kinds of music.
注:一般来讲,--ing分词作表语有两种情况,一是名词性,这时主语和表语可以互换。如:
Playing all kinds of music is our job.
二是形容词性,表示主语的性质和特征
4)-ing分词作定语可以表示
(1) 所修饰名词的用途。如:
a waiting room(=a room for waiting) 候车室
(2)所修饰词的性质特征。如:
exciting news 令人激动的消息
(3)所修饰名词正在进行的动作,可以换成定语
从句形式。
如:a sleeping child (=a child who is sleeping)正睡觉的孩子注:分词短语作定语须放在所修饰词之后,例如:the man
standing at the gate=the man who is standing at the gate
5) 在see,hear,feel,watch,notice等感官动词后可以用-ing形式做宾语补足语。这时-ing 形式和句子的宾语之间存在着逻辑上的主谓关系,并且-ing 形式表示宾语正在进行的动作。如:
He saw a boy climbing the tree.
Do you hear someone knocking at the door? 有人敲门你听见了吗?
6)-ing分词作状语
(1)-ing分词在句中可以作伴随状语,常放于句后,表示主语正在进行的另一个动作,来对谓语表示的主要动作加以修饰或作主要陪衬。如:They sat in front of the building, laughing and chatting.
He worked late yesterday, preparing for the lecture.
(2)-ing分词可以作时间状语,常放在句首,如:(While)Walking in the street,I caught sight of a tailor's shop. (3)-ing分词可以作原因状语,常放句首。
如:Being ill, he can't go to school.
(4)-ing分词可以作条件状语,常放句首。
Turning to the right, you’ll find the post office there.
(5)-ing分词可以作结果状语,常放句末。
He turned off the light, seeing nothing.
5. -ing分词的复合结构
物主代词/人称代词/名词所属格或普通名词+ing分词
(1) 作主语(须用物主代词或名词所属格)
His/Tom’s not being chosen made us disappointed.
(2)作宾语(除了物主代词和名词所有格,也可用普通名词或代词宾格)
He was awakened by someone’s knocking at the door.
(3)作状语(须用普通名词或主格代词,亦称