高中英语人教版 (新课标)选修7&8Unit 3 Under the sea教学演示ppt课件

这是一份高中英语人教版 (新课标)选修7&8Unit 3 Under the sea教学演示ppt课件，共18页。PPT课件主要包含了Raising，making，working，reading，Working，singing，Turning，Learning等内容，欢迎下载使用。

学生能够了解并掌握v-ing 形式的主动式和被动式。学生能够了解并掌握V-ing 形式的完成式，及其对应的被动式。
本节课是关于动词V-ing 形式的语法课，设计意图是通过当堂讲解和练习来让学生掌握该语法的考点。 首先，通过让学生填表格导入新课，先让学生从形式上认识V-ing形式的一般式和完成式及其对应的被动形式。然后，逐个讲解v-ing 形式作主语，宾语，表语，定语等，并且讲练结合，当堂巩固。最后，课堂检测，既能让学生自我检测，又达到了整体上巩固语法的目的。
(nt) being dne
(nt) having dne
(nt) having been dne
V-ing 可作主语、宾语、表语、定语、状语和宾语补足语，但不能单独作谓语。 V-ing 形式表示的动作与主要动词同时发生或发生在主要动词之后，用其一般式; V-ing 形式表示的动作在主要动词之前发生，用其完成时，在具体应用中也常以一般式代替完成式。
1.作主语 ★ Swimming is gd fr health. ★ ______(raise) yur hat t a lady is gd manners . ★ (kill) by sharks in the sea is a cmmn thing.
Being killed
2.作表语 ★ Teaching is learning. 教学相长 ★ My hbby is _______(make) mdel planes. ★ What wrried the child mst was (nt, allw) t visit his mther in the hspital
nt being allwed
1).动名词和不定式都可以作主语，动名词作主语表示一般或抽象的多次性行为，不定式作主语往往表示具体的或一次性的动作。如： Playing with fire is dangerus. （泛指玩火） T play with fire will be dangerus. （指一具体动作）
2)V-ing形式和不定式都要有对称性;当主语是不定式时，表语也用不定式；反之，当主语是 V-ing 形式时，表语也用 V-ing 形式。
T see is t believe. = Seeing is believing.

e.g. : It is n use crying ver spilt milk.覆水难收。
It is + adj. + (fr sb. ) t d sth.
It 作形式主语, 只用V-ing,不用不定式。
3).It’s n use (gd) ding sth. It’s a waste f time ding sth.
It is a waste f time ___________ (talk) t him .It is imprtant fr me _______________ (learn) English .
3.作宾语V-ing 形式既可作动词的宾语, 也可作介词的宾语。★We wuld appreciate hearing frm yu． 我们会珍惜你的来信。★The bird escaped ______________ (catch) .★I feel like __________ (jin) the army.★He was afraid f ____________ (abandn) by us.
being caught
being abandned
4. 作定语★The girl standing there is my sister .★This is a piece f __________ (surprise) news .★The prblem____________ (discuss) nw is very imprtant. ★ The farmers ____________ (wrk) in the fields are tired .
surprising
being discussed
5. 作状语★Hearing the gd news, he jumped with jy.★He sat at the table, _______( read ) China Daily.★ ______________ (ask) t answer the questin, she culdn’t refuse.★ __________ ( wrk ) hard, yu will succeed .
Being asked
6. 作宾语补足语★ I saw peple cming and ging in the street . ★ I heard her ___________ (sing) a sng in her rm.★ Yu’ll find the tpic _____________ (discuss) everywhere nw.
being discussed
1) He hurried hme , lking behind frm time t time . 2) The building being repaired is ur drmitry .
--- V-ing 一般时和一般时的被动形式
1) Having lit a candle , she went ut.2) Having been asked t stay, I culdn’t leave .3) Having heard this, ur teacher expressed her satisfactin .
--- V-ing 的完成时和完成时的被动形式
_________ (turn) t the right , yu will find the place yu want .2. ___________ (ask) t put n perfrmance, she refused .3. He disliked (interrupt) in his experiment . 4. ________ (learn) new wrds is useful.
Being asked
being interrupted