初二下册的英语用"There 1.写出过去时态 我要英文和翻译2.写出现在时态 我要英文和翻译3.写出将来时态 我要英文和翻译

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初二下册的英语用
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初二下册的英语用"There 1.写出过去时态 我要英文和翻译2.写出现在时态 我要英文和翻译3.写出将来时态 我要英文和翻译
初二下册的英语
用"There
1.写出过去时态 我要英文和翻译
2.写出现在时态 我要英文和翻译
3.写出将来时态 我要英文和翻译

初二下册的英语用"There 1.写出过去时态 我要英文和翻译2.写出现在时态 我要英文和翻译3.写出将来时态 我要英文和翻译
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
7.现在完成时
(1) 现在完成时的句型结构
①肯定句:主语+ have/has+ 过去分词
②否定句:主语+ have/has+ not+过去分词
③疑问句:Have/Has +主语+过去分词
(2) 现在完成时的用法
①表示到目前为止曾经有过的或未曾有过的经历和体验.常和never,ever,several times等连用.
如:
I’ve never been to Africa.
Have you ever been to Tokyo?
I’ve been there three times.
②.表示某动作从过去开始,现在刚刚完成,对现在有一定的影响.常与just,already,yet,so far等词语连用.
如:
He has just finished his new book.
注意:just now用于过去时.
③.表示某动作从过去开始,一直持续到现在,可能还会持续下去.通常与\x0bfor或since连用.
如:I have lived in Qingdao for 6 \x0byears./since 6 years ago/since 2003/\x0bsince I came to this city.
It is/has been …+ since….
It’s been seven years since we last saw each other.
It’s six years since he was a teacher.
注意:for+一段时间,since后接一个过去的时间点或一般过去时的句子.
④ 在表将来的时间状语和条件状语从句中代替将来完成时.
如:
You can go home when you have \x0bfinished your work.
比较:You can go home when you \x0bfinish your work.
(3) 过去分词的构成
① 一般情况下在动词词尾后直接加-ed.
如:
listen-listened,talk-talked
② 以不发音的字母e结尾的动词,直接加-d.
如:
live-lived,hope-hoped
③ 以辅音字母加y接尾的动词,y变i,再加-ed.
如:
worry-worried,hurry-hurried
④ 以重读闭音节结尾,且结尾只有一个辅音字母的动词,双写辅音字母,再加-ed.
如:
drop-dropped,plan-planned,stop-stopped
⑤ 不规则变化
如:
cut-cut-cut,come-came-come
begin-began-begun,lend-lent-lent

vcbcvbvcvcbbcvb

there used to de 过去有
there be某地有某物(一般用于一般现在时)
there will be=there is going to be将会有