1、1Section Discovering Useful Structures动词-ing形式(1)2动词-ing形式(现在分词)由“动词原形-ing”构成，在句子中可以作主语、定语、表语、宾语补足语和状语。一、动词-ing形式作定语合作探究1We are not allowed to speak aloud in the reading room.在阅览室里我们不准大声说话。There is a swimming pool in our school.我们学校有一个游泳池。自主发现1动词-ing形式作定语表示所修饰名词的_。属性、作用或用途3合作探究2The boy studying(who
2、is studying)in the classroom is our monitor.在教室学习的那个男孩是我们的班长。自主发现2动词-ing形式作定语表示所修饰名词的_，相当于一个定语从句。动作或状态4合作探究3Well have an exam in the coming week.下周我们将进行一次考试。They lived in a house facing south(which faces south).他们住在一所朝南的房子里。Do you know the boy playing basketball(who is playing basketball)?你认识在打篮球的那个
3、男孩吗？自主发现3当动词-ing形式单独作定语时，放在所修饰的名词_；如果是动词-ing短语作定语，则放在该名词_。前后5二、动词-ing形式作表语合作探究1Her job is keeping the lecture hall as clean as possible.(Keeping the lecture hall as clean as possible is her job.)她的工作是尽量使报告厅保持干净。Her duty is taking care of the babies.(Taking care of the babies is her duty.)照看婴儿是她的职责。6
4、自主发现1动词-ing形式表示主语的_时，可以转换到句首作主语。合作探究2The problem is quite puzzling.这个问题很令人困惑。The film we saw last night was very moving.我们昨晚看的那部电影非常感人。自主发现2动词-ing形式表示主语的某种性质和特征时，通常可以看作_。常用来作表语的现在分词有astonishing，amusing，confusing，disappointing，boring，encouraging，inspiring，moving，tiring，interesting，surprising等。内容形容词7名
5、师提醒(1)作表语时，系动词除be外还有appear，sound，look，become，come，get，go，grow，keep，remain，seem等。(2)动词-ing形式作表语用时，相当于形容词，表示性质或状态；而进行时态中的动词-ing形式是谓语动词的组成部分，表示具体的动作，两者不可混淆。The present situation is encouraging.(表语)目前的形势是令人鼓舞的。8The present situation is encouraging us to stride forward in production.(现在进行时)目前的形势正在鼓舞我们在生产
6、上迈步前进。The problem is quite pressing.(表语)问题很紧迫。She is pressing the button.(现在进行时)她正在按电钮。9巩固内化1 单句语法填空They set up an _(operate)table.He shouted and rapped with his _(walk)stick on the door.巩固内化2 单句语法填空The firefighters dashed into the _(burn)woods to save people trapped in it.The experiment was an _(am
7、aze)success.operatingwalkingburningamazing10巩固内化3 单句语法填空Last night，there were millions of people _(watch)the opening ceremony live on TV.There is a note pinned to the door _(say)when the shop will open again.The building _(build)over there is our library.watchingsayingbeing built11巩固内化4 单句语法填空Her jo
8、b is _(check)letter of credit and terms of contract.Your task is _(clean)the windows.What I hate most is _(laugh)at.checkingcleaningbeing laughed12巩固内化5补全句子The development of our aviation industry _.我们的航空工业的发展是非常令人鼓舞的。What he says _.他说的话听起来更有说服力。Lindas brother _ in his bedroom now.现在，琳达的哥哥正在他的卧室里看电视。is quite encouragingsounds more convincingis watching TV13The story _.这个故事很感人。The result _，for we lost the game.结果很令人失望，因为我们输掉了比赛。is very movingis very disappointing
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