A. Read the examples and discuss the difference between for and since. Then complete the rules.a. A: How long have you been a volunteer?Use:• The Present Perfect Simple for an action which started in the past and continues up to the present....
现在完成时(Present Perfect Simple)主要用于连接过去与现在,强调动作或状态对当前的影响或持续性。其核心在于通过“ha
### Present Perfect Simple 与 Present Perfect Continuous 的区别 在英语时态中,现在完成时(Present Perfect Simple)和现在完成进行时(Present Perfect Continuous)是两个常用的时态,它们虽然都用于描述从过去某一时间开始并持续到现在或刚刚结束的动作,但在具体用法和表达含义上有所不同。以下是对这两个时态的详细对...
present perfect 是英语中的一种时态形式,用来表示过去的经验或完成的动作对现在的影响、持续到现在的动作或状态,或者刚刚完成的动作。与 simple past 相比,present perfect 更强调与现在的联系和影响。在使用 present perfect 时需要注意与 simple past 的区别,避免与具体时间状语连用,注意与 since 和 for 的区别,以...
1. present perfect-form The present perfect of any verb is composed of two elements :the appropriate of the main verb is base+ed :played,arrived,looked, for regular verbs ,see the table of irregular verbs in the section called verbs: 1. present perfect ,function The present perfect function...
Present perfect for & since Read the following article. Pay special attention to the words in bold.How many times have you wanted a quick something and gone to your computer to google it? The word has become synonymous with search. Since its start in 1998.Google has been one of the most...
Greeks have tried to capture our city for ten years.Work out the ruleWe use since with (a period of time/a point in time).We use forwith (a period of time/a point in time).A〕The present perfect tense with since and for We often use since and for with the present perfect tense...
Using the present perfect, we can define a period of time before now by considering its duration, with for + a period of time, or by considering its starting point, with since + a point in time. FOR and SINCE can also both be used with the past perfect.
Using the present perfect, we can define a period of time before now by considering its duration, with for + a period of time, or by considering its starting point, with since + a point in time. FOR and SINCE can also both be used with the past perfect.
present perfect simple 的用法present perfect simple的用法 Present Perfect Simple的基本用法: 1.表示过去发生的动作对现在造成的影响或结果。 - I have lost my keys. How can I get into my house?(我把钥匙丢了,我怎么进家门啊?) - Have you finished your homework yet?(你作业做完了吗?) 2.表示...