人教版高中英语必修五学案：Unit 3 Life in the future Period 4 Grammar(4页).doc

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1、-人教版高中英语必修五学案：Unit 3 Life in the future Period 4 Grammar-第 3 页Book 5 Unit 3 Life in the future Period 4 Grammar编者：王海虹 修编：李慧学习目标1.学习并掌握过去分词用作状语的用法。2. 能灵活运用所学语法知识解决相关问题。自主合作探究1观察下列从Reading中选取的句子，体会过去分词在句中所充当的成分和作用。 Worried_about the journey，I was unsettled for the first few days. Wellknown for their e

2、xpertise，his parents company，called “Future Tours”，transported me safely into the future in a time capsule. The capsule began swinging gently sideways as we lay relaxed and dreaming. Hit by a lack of fresh air，my head ached. Exhausted，I slid into bed and fell fast asleep.自我总结动词的过去分词具有副词、形容词的特征，分词或分词

3、短语在句中可作_、_，还可作_、_等。自主合作探究2过去分词（短语）作状语和定语一、过去分词(短语)作状语过去分词和-ing分词作状语一样，也可以表示时间、原因、条件、让步、方式或伴随情况等。现在分词和过去分词的主要区别在于:现在分词表示主动和进行,过去分词表示被动和完成(不及物动词只表示完成不表示被动).1. 表示时间，相当于一个时间状语从句。表示时间的分词还可以与when, while, once, whenever, until等连词连用。1).Seen from the tower, the city looks beautiful.（= When the city is seen f

4、rom the tower, ）2) When questioned by the police, the man kept silent.2. 表示原因，相当于一个原因状语从句。3) Deeplymovedbythestory,theexcitedpeoplestoppedquarrellingwitheachother.(=Because they were deeply moved by the story,.)3. 表示条件，相当于一个条件状语从句, 表示条件的分词还可以与if 和unless连用。4) Given anotherchance,hewilldobetter. (=If

5、he is given another chance, )5) We cant finish the task on time unless united.4.表示让步, 相当于一个让步状语从句。表示让步的分词还可以与though, although, even if, even though等连用。6)Though asked for help, he did nothing.5.表示方式或伴随情况.表示方式或伴随情况的分词还可以与as if和as though等连用。7).Theoldmanwentintotheroom, supported byhiswife.（=and was sup

6、ported by）8) He turned back as if hurt in the arm.【警示】如下这些词在做状语时一般都用过去分词形式。1.hidden,lost, faced with, dressed devoted, seated, absorbed, exposed, caught, 等。2.surprised,astonished,excited,tired,exhausted,pleased,satisfied,disppointed, worn out 等。二、过去分词作定语1一般来说，过去分词作定语时含有“完成”和“被动”的双重意义。但要注意不及物动词的过去分词常

7、表示“完成”的动作，而不表示“被动”意义。如：boiled water(开水)； fallen leaves (落叶)； risen sun(升起的太阳)等。1) My parents are both retired teachers. 我的父母都是退休教师。2单个的过去分词作定语时，一般放在被修饰词之前，也可后置。往往可用定语从句代替。spoken English英语口语 iced beer冰镇啤酒 fried chips炸土豆条1) Hurry up，there is only a little time left. 快点，时间不多了。2) Things seen are mightie

8、r than things heard. 眼见为实，耳听为虚。3过去分词表示的动作通常发生在谓语动词之前或表示与句中谓语动词相应的经常性动作。1) All the windows broken have been repaired. 所有坏了的窗子都已经修理好了。2) He is a teacher loved and respected by his students. 他是一个受学生喜爱和尊敬的老师。达标练习.完成句子1_(给予更多的时间)，the students can do it better.2_(1955年开张)，Disneyland in California is regar

9、ded by many tourists as the original fun park.3_(对学生的努力感到满意)，all the teachers nodded and smiled.4It is requested that the reporter_(昨天提到的)should be to blame for the wrong report.5 I found the road covered with_ (落叶) when I walked in the park this morning.句型转换 (把下列句子转变成过去分词作状语的结构)1If I am offered great help，I can get rid of all the difficulties._，I can get rid of all the difficulties.2If he is given time，hell make a firstclass tennis player._，hell make a firstclass tennis player.