03.现在完成时(Present Perfect Tense) ① 用于介绍已发表的研究工作 现在完成时(“have”+动词的过去分词)表示过去完成但与现在有关的行动。因此,现在完成时可用来指以前发表的、且继续具有重要性的研究工作。 例:Several studies have demonstrated that a gradual increase in the carbon dioxide concentration durin...
百度试题 结果1 题目Whichsentenceisinthepasttense? A. Ieatanapple. B. Iateanapple. C. Iameatinganapple. D. Iwilleatanapple. 相关知识点: 试题来源: 解析 B 反馈 收藏
【题目】1. Write the past tense 写出过去时:特殊动词过去时am/isarehave/hasdo/doescancan'trungetdrinkwinseehearfindridegocomeakesitsingstudycatstopmaketidymakedrawcutputdrivegetsendcatreadtellmeetspeakwrite 相关知识点: 试题来源: 解析 【解析】 was,were,had,did,could,couldn't,ran,got,drank,won, ...
. Write the past tense写出过去时:特殊动词过去时am/isarehave/hasdo/doescancan'trungetdrinkwinseehearfindridegocomeakesitsingstudyearstopmaketidymakedrawcutputdrivegetsendeatreadtellmeetspeakwrite 相关知识点: 试题来源: 解析 was,were,had,did,could,couldn't,ran,got,drank,won,saw,heard,found,rode,...
they had to dwg deep they have a life they have always had they have another gue they have become hero they have been friend they have little choi they have no fear they have no say they have not been hi they have not publicl they have not worked they have planned the they have qui...
thank you mario but o thank you share thank you so much for thank you dido thank you do you have thank you thank you a thank you thanks thankfully he moves a thanks a lot thanks ash thanks for doing sth thanks for any advice thanks for his help thanks for not hurtin thanks for spe...
过去式:is-was,are-were,am-was;过去分词:is are am-been。过去式(past tense)是英语语法的一种,表示过去某个时间里发生的动作或状态。一般过去式的动词通常用动词的过去式形式来表示,而动词的过去式是在动词原形的基础上变化的。动词的过去式可分为规则动词和不规则动词。
写past tense的话不就代表我的英文那个时候很烂.但事实是我的英文现在也一样烂.所以,要用那个时态呀? 答案 用过去时态来陈述你过去的事实啊,现在的就用一般现在时态时态啊.因为是你的英语在过去不好,但是现在情况不知道是好的还是不好的啊,只有你知道.况且是以前的事实和现在的事实进行对比.相关推荐 1写心得...
百度试题 结果1 题目The past tense of “have” is pronounced as___. A. /hæd/ B. /hævd/ C. /heivd/ D. /hev/ 相关知识点: 试题来源: 解析 A。have 的过去式是 had,读音为/hæd/。反馈 收藏
五、现在完成时（Present Perfect Tense）缩写：has/have done| has/have been 用法：表示过去发生的动作对现在造成的影响或状态。 或者过去一个动作一直持续到现在。构成：主语 + have/has + 过去分词 例句：I have finished my work.（我已经完成了我的工作。） She has lived in London for three years.（...