文档介绍：现在完成时
考点、热点回顾
【词汇辨析】
be famous for 和 be famous as
be famous for表示“因…而出名”, for后接表示出名的原因
be famous as则表示“以…身份而著名”,as 后接职业、身份或地位,表示作为…职业、身份或地位是著名的
eg. France is famous for its fine food and wine. 法国以其佳肴和美酒著名。
France is famous as a romantic country. 法国作为一个浪漫的国家而出名。
hard与 hardly
hard adv.“努力地,费力地,辛苦地”, 如: He works 。
hard adj. “努力的,辛苦的”, 如: It's a hard work. 这是一项辛苦的工作。
hardly否定副词,意思为“几乎不”,表示否定含义,
如:He works hardly. 他几乎不工作。
【固定搭配】加-ing
be good at doing sth擅长做某事 eg: He is good at playing the piano.
mind doing sth介意做某事 eg: Do you mind my opening the door?
practice doing sth练****做某事 eg: My sister practices playing the piano every day.
stop doing sth停止做某事 eg: The teacher ing, please stop talking.
What/How about doing sth. 做某事怎样 eg: What about going to the park this weekend?
【现在完成时】
表示过去发生或已经完成的动作对现在造成的影响或结果,或从过去已经开始,持续到现在的动作或状态。
【常用时间状语】recently, lately, since+时间点, for+数字+时间名词, in the past few months/years等
【构成】肯定形式:have/has + done
否定形式:have/has + not +done
一般疑问句:have或has放于句首
B. 现在完成时的用法
1)现在完成时所表示的动作在说话之前已完成,而对现在有影响。
eg. The car has arrived. 车子来了。(结果:车子已在门口)
Someone has broken the window. 有人把窗户打破了。(结果:窗户仍破着)
区别:have been to, have gone to, have been in
have been to,表示去过某个地方,不过现在已经回来了
have gone to表示去了,但还没有回来,也许是在去的途中
have been in指的是在某个地方,从过去一直延续到现在
例如:你以前去过北京么?
例如:A: Is at home?
B: No,he is not in, (他去香港了)
2)现在完成时所表示的动作开始于过去