高中英语人教版 (2019)必修 第二册Unit 5 Music优秀ppt课件

这是一份高中英语人教版 (2019)必修 第二册Unit 5 Music优秀ppt课件，共18页。PPT课件主要包含了语法导学，◆语法感知，◆语法精析，达标检测，exposed，knowing，offered，Hearing，Looking，Discussed等内容，欢迎下载使用。

Perid Three　Discvering Useful Structures—Past participles(2) as the predicative and the adverbial
感悟规律 重点难点剖析
感知以下句子，完成方框下的小题
句1中加颜色部分是过去分词作 ，表示主语所处的状态；句2～4中加颜色部分是过去分词(短语)作 ，和句子的主语为逻辑上的 关系，表示 或 。
一、过去分词作表语1.意义：用在系动词后面，构成系表结构，表示主语所处的状态，此时过去分词大多已变成了形容词。I felt cnfused, even bred.我有点迷惑不解，甚至有点烦。We were encuraged at the news.听到这个消息我们很受鼓舞。2.过去分词作表语表示主语所处的状态。这一结构从形式上与被动语态相同，但被动语态强调主语所承受的动作。试比较：The bk is well written.这本书写得好。The bk was written by a sldier.这本书是由一位士兵写的。
二、过去分词(短语)作状语表示被动的或完成的动作，这时句子的主语和过去分词之间为逻辑上的被动关系。而现在分词(短语)作状语时，现在分词的动作就是句子主语的动作，它们之间的关系是主动关系。Written in a hurry，this article was nt s gd.因为写得匆忙，这篇文章不是很好。本句中的written即为过去分词作状语，表示这篇文章是被写的，而且已经被写完。过去分词(短语)通常在句中作时间状语、原因状语、条件状语、让步状语、方式状语和伴随状语等。
1.过去分词作时间状语，在句中相当于一个时间状语从句。Asked abut his address(＝When he was asked abut his address)，the by didn’t respnd.问及他的地址时，小男孩没有作答。2.过去分词作原因状语，在句中相当于一个原因状语从句。Encuraged by the prgress he has made(＝As he is encuraged by the prgress he has made)，he wrks harder.由于受到所取得的成绩的鼓励，他工作更努力了。
3.过去分词作条件状语，在句中相当于一个条件状语从句。Given mre time(＝If they were given mre time)，the trees culd grw taller.如果再多给一点时间，这些树会长得更高。Heated t a high temperature(＝If it is heated t a high temperature)，water will change int vapr.如果加热到高温，水就能变成蒸气。4.过去分词作让步状语，在句中相当于一个让步状语从句。Left (Althugh he was left) at hme，Jhn didn’t feel afraid at all.虽然约翰被单独留在房间里，但他一点都不害怕。
5.过去分词作方式、伴随状语。Fllwed by a grup f students，the teacher entered the classrm.＝The teacher entered the classrm and he was fllwed by a grup f students.老师走进教室，后面跟着一群学生。注意：(1)过去分词(短语)作状语时，前面有时可以加上when，if，while，thugh，even if，until，unless等连词，这种结构可以看作是一种省略的状语从句(省略部分多为“主语＋be的多种形式”)。需要注意的是，省略的主语必须和主句的主语相同或是it。Even if invited(＝Even if I’m invited)，I wn’t take part in the party.即使受到邀请，我也不会参加这个聚会的。
拓展：有些过去分词因来源于系表结构，作状语时不表被动而表主动。这样的过去分词及短语常见的有：lst迷路，沉溺于；seated坐；dressed in穿着；tired f厌烦；faced with面临；accustmed t习惯于等。Lst in deep thught，he didn’t hear the sund.因为沉溺于思考之中，所以他没听到那个声音。Dressed in a new dress，she lks very beautiful.穿着一件新衣服，她看上去很漂亮。
(2)现在分词(短语)在句中也可以作状语来修饰谓语动词或整个句子，表示动作发生的时间、原因、条件、结果、方式、让步或伴随状况。Walking in the park，she saw an ld friend.＝When/While (she was) walking in the park，she saw an ld friend.当她在公园里散步时，她看到了她的一个老朋友。Being ill，he culdn’t g t schl.＝As he was ill，he culdn’t g t schl.因为生病了，他无法去上学。Wrking hard，yu’ll make great prgress.＝If yu wrk hard，yu’ll make great prgress.如果你努力工作，你将取得很大进步。
The hspital has recently btained new medical equipment，allwing mre patients t be treated.这家医院最近得到一批新的医疗设备，这使更多的病人能得到治疗。Mary sat by the windw f the classrm，reading a bk.＝Mary sat by the windw f the classrm and was reading a bk.玛丽坐在教室的窗边读一本书。(3)不定式(短语)在句中也可以作状语，表示目的或结果。T catch the first bus，he gt up very early.为了赶第一班公交车，他起得很早。I hurried t schl，nly t find it was Sunday.我匆忙赶到学校，结果发现是星期天。
当堂检测 基础达标演练
1.The ld man lay n the beach at ease， (expse) t the (knw) what t d，the children had t wait fr their parents t cme (ffer) help，ne ften says “Thank yu.”4. (hear) the signal，peple ran ut f the building.5. (lk) ut thrugh the windw，we saw a beautiful scenery.6.  (discuss) many times，the prblems were settled at last.7. (bury) in her nvel，the girl didn’t ntice the beautiful snw.
8.The case shcked the public， (cause) a ht debate ver human nature n the if (tell) many times，he still made the same mistakes.10. (admit) int a key university，the girl was very excited.
11.When she heard the news，she burst int tears.→ ，she burst int we were exhausted by the climbing，we cntinued ur jurney.→ ，we cntinued ur was dressed in white and suddenly appeared.→ ，she suddenly Wu came in and she was fllwed by her daughter.→Aunt Wu came in， .15.A fld struck the area and thusands f peple were left hmeless.→A fld struck the area， .
Ⅱ.用分词(短语)作状语改写下列状语从句
Hearing the news
Exhausted by the climbing
Dressed in white
fllwed by her daughter
leaving thusands f peple hmeless