过去进行时-现在完成时-被动语态.docVIP

一般现在时 定义 表示现在或当前一段时间正在进行的动作。 构成 be(am，is are)动词－ing＋其他 考点 注意具体语境 如： I don’t really work here; I am just helping out until the new secretary arrives. 过去进行时 定义 表示过去某时正在进行的状态或动作。 构成 主语was/were动词-ing其他 考点 1．过去进行时明显的时间状语 this morning, the whole morning, from nine to ten last night等等 如：I was doing my homework from six to eight last night. 2．注意具体语境 如：--- I phoned you last night. But there was nobody answers the phone. --- Oh, I was staying at my friend’s home. 3．when while when可接短暂动词以及延续性动词，while只能接延续性动词，并有对比的含意。 如： The telephone rang when I was sleeping. I was watching TV when my mother came in. I was watching TV while my mother was doing the housework. 现在完成时 定义 现在之前已发生过或完成的动作或状态。 构成 　　主语has/have动词ed其他 考点 1．表示过去发生或已经完成的某一动作对现在造成的影响或结果 如： I have already seen this film. It’s the most interesting film that I’ve ever seen. 2．注意现在完成时与一般过去时的区别 现在完成时强调的是这一动作对现在产生的影响或者结果等。 一般过去时只表示动作在过去某一时刻发生，不表示和现在的关系。 3．用how long提问时，要用延续性动词 如：How long have you been here? 4．since for already yet since 后加某时间点，表示从某时间点以来。通常前面现在完成时，后面一般过去时。 for 后加时间长度，表示动作已经持续多久。 already 通常跟在have后或句尾，表示“已经”， 一般用于肯定句。 yet 通常用于句尾，表示“已经”， 一般用于否定、疑问句。 练一小手 1．--- Is this raincoat yours? --- No, mine there behind the door. A．is hanging　　　　 B．has hung　　　　 C．hangs　　 D．hung 2．She John with his lessons at this time yesterday. A．was going to help　　　B．was helping 　 C．would help 　　　 D．has helped 3．I don’t think Jim saw me; he into the sky. A．just stared　　　　　 B．was just staring C．has just stared　　　　 D．had just stared 4．We breakfast when the phone rang. A．were having　　　 B．was having C．have D．has 5．You don’t need to describe her. I her. A．had met B．have met C．met D．meet 6．--- How long have you your book? --- For a week. And I didn’t it to others. A．borrow, lend B．kept, lend C．lend, borrow D．keep, borrow 7．Lucy many friends since she went to Par