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1、Unit 5 MusicDiscovering Useful Structure【教学目标】1. Get students to have a good understanding the basic usage of past word segmentation as past segmentation as predicative and adverbial.2. Strengthen students great interest in grammar learning.3. Instruct students to express their ideas with this gramm
2、ar correctly.【教学重难点】How to enable students to use the structure and meaning of past word segmentation as past segmentation as predicative and adverbial.【教学过程】Step 1 Lead-inGive some messages and ask students to guess who she is.英语过去分词的句子。Step 2: Presentation过去分词作表语介绍过去分词在做表语的几种形式以及应用。1过去分词可放在连系动词be,
3、 get, feel, remain, seem, look, become等之后作表语，表示主语所处的状态常见的这种过去分词有:be interested, be surprised, be astonished, be amazed, be moved, be exhausted, be worried, be devoted, be pleased, be inspired, be encouraged, be excited, be delighted, be satisfied, be scared, be inspired, be encouraged, be excited例如：
4、Tom was astonished to see a snake moving across the floor.汤姆很惊讶地看到一条蛇正爬过地板。2过去分词作表语时与被动语态的区别过去分词作表语时，强调主语所处的状态；而动词的被动语态表示主语是动作的承受者，强调动作。例如：The library is now closed. (状态)图书馆现在关闭了。3感觉类及物动词的现在分词与过去分词作表语的区别过去分词作表语多表示人自身的感受或事物自身的状态，常译作“感到的”；现在分词多表示事物具有的特性，常译作“令人的”。例如：We were amazed at what he said at th
5、e meeting.我们对他在会上讲的话很是惊讶。过去分词作状语介绍过去分词在做状语的几种形式以及应用。1过去分词作时间状语过去分词作时间状语时，相当于时间状语从句。可在过去分词前加上连词“when, while, until”等，使其时间意义更明确。例如：When it is looked at from a distance, the painting seems much more beautiful.当从远处看时，这幅画似乎更美了。2过去分词作原因状语过去分词作原因状语时，可转换为由since, because或as引导的原因状语从句，这类状语多放在句子的前半部分。例如：Because
6、 I was worried about the exam, I was unsettled in these days.由于担心考试，我这几天感到不安。3过去分词作条件状语过去分词作条件状语时，可转换为if, once或unless等引导的条件状语从句。例如：If they are grown in rich soil, these seeds can grow fast.如果种在肥沃的土壤里，这些种子能长得很快。4过去分词作让步状语过去分词作让步状语时，相当于一个以though/although引导的让步状语从句。例如：Though he was encouraged by his par
7、ents, he still has no confidence in overcoming the teaching difficult points.尽管受到了父母的鼓励，他仍然没有信心克服困难。5过去分词作方式/伴随状语过去分词作方式或伴随状语时，通常不能转换为状语从句，但可用并列分句代替。例如：The patient got off the bed, and he was supported by the nurse.那个病人在护士的搀扶下下了床。过去分词与现在分词作状语的区别，给出口诀。过去分词与句子的主语之间存在逻辑上的动宾关系，即表示被动；现在分词与句子的主语之间存在逻辑上的主谓关系，即表示主动。分词作状语记忆口诀分词作状语，主语是问题。前后两动作，共用一主语。主语找出后，再来判关系。主动用-ing，被动用-ed。 3 / 3