1、Period 2 Using language Unit 5 On the road1.v.-ing 形式作定语.2.v.-ing 形式作定语的使用.Learning aimsLeading-in语法现象感知1.The Bernina Express follows a route running from Eastern Switzerland to Northern Italy.2.The landscape lining the route is beautiful and dramatic,with snowy mountains and green valleys.Grammar 一
2、、v.-ing形式作定语的位置 1.现在分词(doing)作定语，可表示主动和动作正在进行，其被动形式(being done)通常表示被动的、正在进行的动作。2.现在分词作定语可转化为定语从句。3.现在分词作定语分为前置定语和后置定语：(1)单个现在分词作定语时，一般会放在被修饰的名词之前，说明被修饰名词的性质或特征等，构成前置定语。(2)现在分词短语作定语时，一定放在被修饰成分的后面，构成后置定语。例句：He is an attacking player.他是一个攻击型的运动员。A little child learning to walk often falls.学走路的小孩常常摔跤。Do
3、 you know the number of people coming to the party?你知道来参加晚会的人数吗?当v.-ing形式作后置定语时，可以相当于相应的定语从句。A young man writing novels came to speak to us yesterday.A young man who writes novels came to speak to us yesterday.一位写小说的年轻人昨天来向我们做报告。The girl sitting next to me was my cousin.The girl who was sitting next
4、 to me was my cousin.坐在我旁边的姑娘是我表妹。二、v-ing形式作定语通常从以下三方面考查：1.说明被修饰词的性质、特征或用途。现在分词和所修饰的名词之间没有主谓关系，定语相当于一个介词for引导的短语。They set up an operating table(=a table for operating)in a small temple.他们将手术台架设在一座小庙里。He may be in the reading room(a room for reading).他可能在阅览室里。2.与被修饰词为主动关系且表示正在进行的动作无论现在分词作前置定语还是后置定语，在
5、逻辑上与所修饰的名词之间为主谓关系，都可改成定语从句。There were about 200 children studying(who were studying)in the art school.有大约两百个孩子在这所艺术学校学习。Who is the talking woman(who is talking)over there？正在那边说话的那位妇女是谁?3.有些，v-ing形式已经转化成形容词，常作定语，用来修饰物，表示“令人”。这类词也可以转换成定语从句。常用的此类词有:exciting，amusing，amazing，astonishing，shocking，puzzling
6、，confusing，disappointing，discourging，pleasing,striking,boring,tiring，touching，moving，interesting，satisfying，terrifying，frightening等。That must have been a terrifying experience.那一定是一段可怕的经历。三、如果v-ing形式与被修饰词是被动关系，就用它的被动式，即 being done作定语。being doing通常表示正在被做，常作后置定语。The tall building being built now is ou
7、r new school.建设中的高楼是我们的新学校。The question being discussed was presented by the headmaster。讨论中的问题是校长提出的。Summary现在分词作定语构成基本用法基本形式v-ing变形:being donehaving donehaving been done1.单个现在分词作定语，置于被修饰词前，叫前置定语。2.现在分词短语作定语，置于被修饰词后，叫后置定语。3.现在分词短语作后置定语，可转换为定语从句。Exercise.改写短语 1.the _ room=the room for meeting 2.a _st
8、ick=a stick for walking 3.an embarrassing question=question _ 4.a sleeping child=a child_ 5.a listening child=a child_.句型转换1.The young man sitting between John and Mary was the editor of the campus newspaper.meetingwalkingwhich is embarrassingwho is sleepingwho is listening The young man_between Joh
9、n and Mary was the editor of the campus newspaper.2.The man standing at the school gate was Professor Hua.The man_at the school gate was Professor Hua.3.The bike which is being repaired belongs to Mr Smith.The bike_belongs to Mr Smith.who/that was sittingwho/that was standingbeing repaired 4.The topic being discussed is about environmental problems.The topic_is about environmental problems.5.I like to watch the leaves which are falling in the sky.I like to watch _ in the sky.which is being discussedthe falling leavesA man becomes learned by asking questions.不耻下问才能有学问。
