内容正文:
Book2 Unit5 On the Road
Period 3 Grammar——动词ing作定语
学习目标:
1. 识别并掌握动词-ing在句子中作定语
2. 熟练运用动词-ing于填空和写作
学习重点:
动词-ing在语境中的具体运用
易混易错知识:动词-ing作定语和定语从句
情境感悟:
①They talked in low voice in order not to wake up the sleeping girl.
②The student making the experiment in the lab is our monitor.
③ She found herself in an embarrassing position.
④They built a highway leading into the mountains.
句①③为动词的ing形式单独作_________,放在被修饰的词________(前/后)。
句②④为动词的ing形式短语作_____________, 放在被修饰的词______________(前/后)。
语法精讲:
一、单个的词作定语放在被修饰词前
1. v-ing作定语起名词的作用, 表明被修饰名词的作用、用途等。表示“供……之用”, 相当于used for doing。
*building materials = _______________建筑材料
*a walking stick =_________________ 手杖
2. V-ing 表示“正在...的”
*the singing girls .
*the rising sun .
3. 表示性质特征,这些v-ing已经转化成形容词,表示“令人...的”。
常用的此类词有:exciting,amusing,amazing,astonishing,shocking,puzzling,confusing,disappointing, discouraging, pleasing, striking, boring, tiring, touching, moving, interesting,satisfying,terrifying,frightening 等。如:
*That must have been a terrifying experience.那准时一段可怕的经历。
*The experiment was an amazing success.那项试验是一个惊人的成功。
*There is a page missing from this book.这本书缺了一页。
TIPS:若单个的v-ing形式修饰的词为those, something, everything, nothing 等不定代词时,则v-ing形式要放在其后。
*He is reading something interesting. 他正在读有趣的内容。
*There is nothing amazing. 没什么了不起的。
· 把下列句子或短语改写成定语从句修饰名词。
* the laughing audience欢笑的观众
→_____________________________________________________________.
* a sleeping boy正在睡觉的男孩
→_____________________________________________________________.
2、 v-ing 短语作定语放在被修饰词后,相当于一个定语从句。
*They lived in a room facing the street.
*They lived in a room that faces the street. 他们住在一间面朝街的房子。
1. 表示正在进行的动作, (变为从句时要用进行时态)
*Tell the children playing (who are playing) there not to make so much noise.
告诉正在那里玩耍的孩子们不要弄出那么大噪音。
2. 表示经常性的动作, 或现在 (或当时) 的状态, (变为从句时, 用一般时态)
*They lived in a room facing (that faced) the south. 他们住在一个朝南的房间里。
三、现在分词作定语的被动式
· 作定语的及物动词的现在分词形式为doing和being done。
1. 当被修饰的名词与分词之间为主动关系时,用doing;
2. 当被修饰的名词与分词之间为被