二、一般过去时态(Simple Past Tense) 一般过去时态用来表示在过去某个具体时间发生的动作或事情。它的构成规则是:动词过去式。 例题3: Yesterday, they ___ (visit) their grandparents. 查看本题试卷 动词时态的种类及用法总结 119阅读 1 16种时态的主动结构被动结构例句英语 109阅读 2 初中英语知识总结——动词...
【题目】Simple past tense and present perfect tenseThere are some differences between the simple past tenseand the present perfect tense.TIPWe often use these time expressions with the simplepast tense.yesterday the other day last.. .agoTIPWe often use these time expressions with the present...
Related to Simple past tense:past perfect tense Thepast tenseis used to describe or indicate an action that began in the past. Depending on how we form the past tense, it might describe actions that happened or were completed in the past, were occurring at the same time as something else...
Learn how to use the past perfect and past simple tenses together in English. Ill teach how you can show what order events happened in when talking about your day by using these tenses correctly.
simplepasttense 一般过去时presentperfecttense 现在完成时alreadyyetevernever,justrecentlybeforesofarovertheyearsuptonowoncemanytimesforsince…I___(visit)thePalaceMuseumwithmygrandparentstheotherday.I___(climb)MountHuanglastsummer.visitedclimbedIamhappythatI___(learn)toswim.___youever___(try)thefamousTianji...
His brother(visit) London last year.10. Jack(live) in Boston for the past 15 years.11. Janet(work) for Smith and Brothers before she came to work for us.12 Dad(you/finish) reading the paper yet?13. I would love to visit Prague sometime. Unfortunately, I(be/never)there.14. Peter...
Past participle: stunnedGerund: stunning Imperative stun stun Collins English Verb Tables © HarperCollins Publishers 2011 ThesaurusAntonymsRelated WordsSynonymsLegend: Switch to new thesaurus Verb 1. stun - make senseless or dizzy by or as if by a blow; "stun fish" stupefy immobilise, ...
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In particular, the development of fluorescent-labeling techniques has led to spectacular breakthroughs over the past two decades, notably with super-resolution optical microscopy techniques based on stochastic switching of single-molecule fluorescence (PALM5, STORM6, and SPIDER7). These sub-diffraction-...