Open carloscn opened 4 months ago
在英语语法中,"主语 + 系动词 + 表语"的结构是一种常见的句子结构,被用来描述主语的状态、特性或身份。这种结构也称为"连系动词结构"。下面是对这三个部分的简要介绍:
时态/人称 | 单数 | 复数 | 第三人称单数 |
---|---|---|---|
现在分词 (Present Participle) | being | being | being |
过去式 (Past Simple) | was | were | was |
过去分词 (Past Participle) | been | been | been |
现在时 (Present Simple) | am/is | are | is |
现在完成时是英语中的一种时态,用来描述过去发生的事件对现在造成的影响或结果,或是从过去某一时间点持续到现在的动作或状态。现在完成时由“have/has”(助动词)加上动词的过去分词构成。这个时态强调的是过去行为在现在的连续性或完成性,而不是强调过去发生的具体时间。
肯定句:主语 + have/has + 过去分词 否定句:主语 + have/has + not + 过去分词 疑问句:Have/Has + 主语 + 过去分词?
表示过去发生的动作对现在造成的影响或结果:
描述从过去某一时刻持续到现在的动作或状态:
表示过去某个时间点以来重复发生的动作:
Content
I have just^5 received a letter from my brother[^1], Tim^2. He is in Australia. He has been there for[^3] six months. He is an engineer. He is working for a big firm^4 and he has already^5 visited a great number of different places in Australia. He has just^5 bought an Australian car and has gone^7 to Alice Springs, a small town in the center of Australia^2. He will soon^5 visit Darwin. From there, he will fly to Perth. My brother has never^5 been abroad before, so he is finding this trip very exciting[^6].
[^1]: from my brother 介词短语,修饰letter,注意是介词是就近修饰的,只修饰附近的名词
[^3]: for + 时间,表示前面的句子状态持续了多久
[^6]: very exciting在句子成分中是宾语补足语。