现在完成时和一般过去时的句型及用法,?
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热心网友
现在完成时和一般过去时所表示的动作都发生在过去，但它们所强调的重点不同：现在完成时侧重于对现在的影响；而一般过去时侧重于某一动作发生在过去某个时间或某段时间，即现在完成时侧重于现在的结果，而一般过去时侧重于动作发生的时间。例如： I have seen the film. 我看过这部电影。（现在我仍记得电影的内容） I saw the film three days ago. 三天前我看了这部电影。（强调是三天前，而不是别的什么时候看的电影） Mr Green has bought a new computer. 格林先生买了一台新电脑。（着重点是格林先生现在有了一台新电脑） Mr Green bought a new computer yesterday. 格林先生昨天买了一台新电脑。（强调的是格林先生买新电脑的时间是昨天） 2. 时间状语不同 现在完成时常与already， yet， just， ever， never， before等副词以及“for+段时间”，“since+过去时间/从句”等时间状语连用；而一般过去时则常与“段时间+ago”，just now， yesterday， last week等表示过去时间的状语连用。例如： She has lived here since two years ago. 她两年前就住在这里了。 She lived here two years ago. 两年前她住在这里。 He has been in the League for three years. 他入团已经三年了。 Tom wrote a letter to his parents last night. 昨晚汤姆给他的父母写了封信。
热心网友
现在完成时 表示动作发生在过去，完成在过去，但强调与现在情况仍有联系，其结果或影响仍存在。现在完成时有一些标志性的时间状语： 考点一：for + 时间段；since + 时间点 They have lived in Beijing for five years. They have lived in Beijing since 1995. I have learned English for ten years. 考点二：常见的不确定的时间状语：lately; recently, just, already, yet, up to now; till now; so far, these days, Has it stopped raining yet ? 考点三：在表示“最近几世纪/ 年/ 月以来……”时间状语中，谓语动词用现在完成时。 in the past few years/months/weeks/days；over the past few years; ring the last three months; for the last few centuries, through centuries; throughout history 等 考点四：表示“第几次做某事，”或在 “It is the best (worst, most interesting ) +名词 ＋that” 后面跟现在完成时。 This is my first time that I have visited China. This is the most interesting film I have ever seen. That is the only book that he has written. 4．一般过去时 表在过去某个特定时间发生且完成的动作，或过去习惯性动作，不强调对现在的影响，只说明过去。常跟明确的过去时间连用，如：yesterday; last week; in 1945, at that time; once; ring the war; before; a few days ago; when, 注意： 考点一：used to + do，表示过去经常但现在已不再维持的习惯动作。to为不定式，后接动词原形。 be/become/get used to + doing，表示习惯于 He used to smoke a lot. He has got used to getting up early. 考点二：在时间和条件状语从句中，代替过去将来时。 He promised to buy me a computer if he got a raise
热心网友
现在完成时和一般过去时所表示的动作都发生在过去，但它们所强调的重点不同：现在完成时侧重于对现在的影响；而一般过去时侧重于某一动作发生在过去某个时间或某段时间，即现在完成时侧重于现在的结果，而一般过去时侧重于动作发生的时间。例如： I have seen the film. 我看过这部电影。（现在我仍记得电影的内容） I saw the film three days ago. 三天前我看了这部电影。（强调是三天前，而不是别的什么时候看的电影） Mr Green has bought a new computer. 格林先生买了一台新电脑。（着重点是格林先生现在有了一台新电脑） Mr Green bought a new computer yesterday. 格林先生昨天买了一台新电脑。（强调的是格林先生买新电脑的时间是昨天） 2. 时间状语不同 现在完成时常与already， yet， just， ever， never， before等副词以及“for+段时间”，“since+过去时间/从句”等时间状语连用；而一般过去时则常与“段时间+ago”，just now， yesterday， last week等表示过去时间的状语连用。例如： She has lived here since two years ago. 她两年前就住在这里了。 She lived here two years ago. 两年前她住在这里。 He has been in the League for three years. 他入团已经三年了。 Tom wrote a letter to his parents last night. 昨晚汤姆给他的父母写了封信。
热心网友
现在完成时 表示动作发生在过去，完成在过去，但强调与现在情况仍有联系，其结果或影响仍存在。现在完成时有一些标志性的时间状语： 考点一：for + 时间段；since + 时间点 They have lived in Beijing for five years. They have lived in Beijing since 1995. I have learned English for ten years. 考点二：常见的不确定的时间状语：lately; recently, just, already, yet, up to now; till now; so far, these days, Has it stopped raining yet ? 考点三：在表示“最近几世纪/ 年/ 月以来……”时间状语中，谓语动词用现在完成时。 in the past few years/months/weeks/days；over the past few years; ring the last three months; for the last few centuries, through centuries; throughout history 等 考点四：表示“第几次做某事，”或在 “It is the best (worst, most interesting ) +名词 ＋that” 后面跟现在完成时。 This is my first time that I have visited China. This is the most interesting film I have ever seen. That is the only book that he has written. 4．一般过去时 表在过去某个特定时间发生且完成的动作，或过去习惯性动作，不强调对现在的影响，只说明过去。常跟明确的过去时间连用，如：yesterday; last week; in 1945, at that time; once; ring the war; before; a few days ago; when, 注意： 考点一：used to + do，表示过去经常但现在已不再维持的习惯动作。to为不定式，后接动词原形。 be/become/get used to + doing，表示习惯于 He used to smoke a lot. He has got used to getting up early. 考点二：在时间和条件状语从句中，代替过去将来时。 He promised to buy me a computer if he got a raise
