同义句转换,最好有理由,保证给采纳,

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同义句转换,最好有理由,保证给采纳,

同义句转换,最好有理由,保证给采纳,
同义句转换,最好有理由,保证给采纳,
 

同义句转换,最好有理由,保证给采纳,
It's nearly 9 years since China joined the WTO.中国加入WTO已经9年了.
join加入,是一个瞬间性动词,即这个动作是一瞬间完成的,所以用一般过去式.
小学英语啊!不知道下面针对这种句型的解释你能看懂吗?看不懂你再追问吧.
句型it is/was +时间段n.+ since(自从...已经多久了)
关于这个句型要注意以下几个方面(时态搭配和辨别v.是延续性v.还是短暂性v.)
1.it is +时间段n.+ since sb.have done(该v.必须为延续性v.,翻译时直译)
或是it is +时间段n.+ since sb.did(如v.为短暂性v.即瞬间性v.翻译时直译,如为延续性v.翻译时反译)
eg.It is 5 years since I have lived here.(live为延续性v.故直译为自从我住在这儿已经5年了.)
It is 5 years since I lived here.(live为延续性v.故反译为我已经5年不住这儿了.)
It is 3 years since I smoked.(smoke为延续性v.故反译为我已经3年不吸烟了.)
It is 3 days since the accident happened.(happen为短暂性v.故直译为自从这场车祸发生已经有3天了.)
It is 10 years since they married.(marry为短暂性v.故直译为自从他们结婚已经有10年了.)
2.it was +时间段n.+ since sb.had done(就实际情况翻译)
He said it was 5 years since they had seen each other.