相关简介
本课件聚焦人教版高中英语必修二《Wildlife Protection》中“现在进行时的被动语态”这一语法点。通过例句分析、结构归纳和用法详解,帮助学习者掌握被动语态在此时此刻或现阶段动作中的正确表达,并注意常见易错点与特殊句式。课件共30页,内容清晰实用。
现在进行时的被动语态详解
在英语中,现在进行时的被动语态用于描述此刻或当前阶段正在承受的动作。其基本结构为“主语 + am/is/are + being + done”。下面从构成、用法和注意事项三个方面进行系统梳理。
一、构成
肯定式:主语 + am/is/are + being done。
否定式:主语 + am/is/are + not + being done。
一般疑问式:Am/Is/Are + 主语 + being done?
特殊疑问式:疑问词 + am/is/are +(主语 +)being done?
例如:
At present, lots of food, water, tents and medicine are being sent to the disaster-hit area. (目前,大量的食物、水、帐篷和药品正被送往灾区。)
What measures are being taken to protect the endangered animals? (采取了什么措施来保护濒危动物?)
二、用法
现在进行时的被动语态主要有以下四种用法:
1. 表示说话时正在进行的被动动作。
She is being examined by the doctor now. (她现在正在接受医生的检查。)
2. 表示现阶段正在进行的被动动作,说话时不一定正在进行。
A new gallery is being built. (一个新的画廊正在建造中。)
3. 表示一种经常性的被动行为,常与 always, constantly, frequently 等频度副词连用,带有赞赏或厌恶等感情色彩。
The girl is always being praised by her teachers. (这个女孩总是受到老师的表扬。)
4. 表示按计划或安排将要发生的被动动作(仅限于少数及物动词)。
Some classical music is being played by them next. (下面将由他们演奏一些古典音乐。)
三、注意事项
1. 某些动词一般不用于进行时的被动语态。 如 have, want, need, love, realize 等表示状态、心理活动、拥有、存在的动词,常用一般现在时的被动语态代替。例如:
Mary, come here. You’re wanted on the phone. (√)而非 You’re being wanted.
2. 少数动词用主动形式表示被动含义。 如 print, cook, fry, hang, build, make 等。例如:
The meat is cooking. (肉正煮着。)
3. “be + in/on/under + 名词”结构可代替被动语态。 例如:
The problem is under discussion now. = The problem is being discussed now.
4. 避免混淆现在进行时的被动语态与一般现在时的被动语态。 常见错误:
Look! The road is built. (×)应为 is being built.
The dinner is prepared by Christina. (×)应为 is being prepared.