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Have you ever imagined that you could be cloned (克隆) like Dolly the sheep in the not too distant future?The news that a human embryo (胚胎) has been successfully cloned for the first time has caused mixed reactions.The research was carried out by scientists from the Advanced Cell Technology Inc(ACT,先进细胞技术公司) in Massachusetts, USA. The group re; vealed the news on November 25."This is not a cloned human being. A clone is alive, it walks, it breathes," said Jamie Grifo,an expert on the study of cloning at New York U- 相似文献
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在高中英语教材中有这样一个句子:The young lady rushed into the room immediately she heard the noise.在此句中,immediately用作连词,而不是我们以前学过的副词,类似的表达还有以下五种情况。 相似文献
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英语中,充当介词宾语的通常是名词、代词、动名词,但是在一定的情况下,形容词、副词、介词短语、动词不定式和名词性从句也可以充当介词的宾语。一、不定式作介词宾语后面可以接不定式作宾语的介词有but,except,besides,insteadof等。例如:1.Whathashedonebesideswritethepaper?除了写论文,他还做了些什么呢?2.Heproposedtodosomeworkinsteadoftowatchtelevisioneveryday.他提议做些事情而不要天天看电视。要特别注意的是:A.当不定式结构作介词except,but,besides的宾语时,若介词前面出现了实义动词do的某种形式,则… 相似文献
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谭其容 《中学生英语读写(高考版)》2002,(3)
我们在表达雨下得很大的时候,有多种表达法,其中之一便是:torain cats and dogs。字面意思为:下猫下狗;实际意义为:大雨滂沱。在北欧神话中,“猫”被认为是对天气有影响的动物。每当猫儿异常地蹦蹦跳跳的时候,水手们就会说:“The cat has a gale of wind in her 相似文献
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在中学英语课本中,多次出现wind,cloud,rain和snow。它们时而与不定冠词a连用,时而又用复数形式。这些变化常常使中学生无所适从。为了帮助广大中学生弄懂这四个词的确切含义和用法,现对它们分析如下:一、wind风1.wind常和定冠词the连用,有时也和不定冠词a连用。wind前面有不定冠词a和形容词时,表示“一种什么样的风”。例如:Theywilldotheirbesttoproducemoreenergyfromthewindandthesun.他们将竭尽全力来开发风能和太阳能。Theycantravelhundredsofmilesinthewind.他们可以借助风力传到许多英里之外的地方去。Innorthernco… 相似文献
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“ItwasstrangetohughimashessotallwhileImsmall,”said21-year-oldSongPengfei.HewastalkingabouthismeethingwithformerUSPresidentBillClintonataninternationalmeetingonAIDSandSARSatQinghuaUniversitylastMonday.Butthiswasnoordinaryhug.Sixyearsago,Songbecameinfected(感染)withHIV—thevirus(病毒)thatleadstoAIDS—whenhereceivedsomeuncleanbloodinanoperation.HeistheonlyHIVcarrierintheChinesemainlandtohavemadehisnamepublic.Chinanowhasupto1millionHIVcarriers,mostlyyoungpeopleagedbetween15and19,ac… 相似文献
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