内容正文:
Section Ⅱ GRAMMAR
UNIT 3 CELEBRATIONS
语 法 探 究
课 时 精 练
内
容
索
引
语 法 探 究
索引
新知导学
教材示例
1.Spring Festival is highly valued by every Chinese family.
2.First,the house was cleaned from top to bottom.
3.Fireworks were being let off across the city,suddenly lighting up the night sky.
我的发现
1.句1的动词使用______________________;
2.句2的动词使用______________________;
3.句3的动词使用______________________。
一般现在时的被动语态
一般过去时的被动语态
过去进行时的被动语态
语法精讲
一、被动语态的时态变化
1.各种时态的被动语态的构成
被动语态由助动词be和及物动词的过去分词构成。被动语态可用于各种时态,其时态变化通过助动词be的不同形式来体现。
时态 主动语态 被动语态
一般现在时 do/does am/is/are+done
一般将来时 will/shall+do will/shall+be+done
现在进行时 am/is/are+doing am/is/are+being+done
时态 主动语态 被动语态
一般过去时 did was/were+done
现在完成时 have/has+done have/has+been+done
过去完成时 had+done had+been+done
将来完成时 will/shall+have+done will/shall+have+been+done
过去进行时 was/were+doing was/were+being+done
The classroom is cleaned by us every day.
每天都由我们打扫教室。(一般现在时的被动语态)
The school sports meeting will be held next week.
将在下星期举行校运动会。(一般将来时的被动语态)
The road is being repaired by construction workers.
建筑工人正在修路。(现在进行时的被动语态)
The letter was typed on the computer.
这封信是用电脑打出来的。(一般过去时的被动语态)
So far my thesis has been completed.
到目前为止我的论文已经写好了。(现在完成时的被动语态)
The room had been broken into before we came.
我们来之前已经有人强行闯入了这个屋子。(过去完成时的被动语态)
The design will have been done by the end of this week.
这个设计在本周末会被做完。(将来完成时的被动语态)
The room was being painted when I left.
我离开时,房间正在被粉刷。(过去进行时的被动语态)
2.被动语态的特殊形式
①含有情态动词的被动语态的结构为:情态动词+be+过去分词。
Something must be done to stop the water from being polluted.
必须采取措施来制止水受到污染。
②“get+过去分词”式被动语态。
在口语和非正式的语体中,常用“get+过去分词”表示被动语态,其中get相当于be动词,起到助动词的作用。这种形式常用来强调结果。
The boy got hurt when he was riding to school.
那个男孩子骑车上学时受伤了。
Some glasses got broken when we were moving.
我们搬家时有些玻璃杯被打碎了。
二、主动形式表示被动意义
1.lock,open,shut,move,read,sell,wash,write等动词和well,badly,easily等副词连用表示主语的内在品质或性能时是不及物动词,常用主动形式表示被动意义。
The door doesn’t open easily.
这个门不容易开。
The new product sells well.
这个新产品很畅销。
2.动词look,sound,feel,smell,taste,seem,turn,fall,grow,keep,go,stay作系动词时