有个别语音教材认为英语有三元音。但多数语音教材认为英文有12个单元音和8个双元音。所谓三元音其实是元音组合,即双元音和中元音弱音的结合。我们知道如果一个单词只有一个元音时,这个单词单独读出的时候都是重读的,因此不必标注重音位置。只有一个单词有两个以上元音时,才需要标出重音的位置。dial的音标表示出了重音...
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本句可解释为:He couldn’t be a worse teacher than he is a driver.= He is not a good driver, nor is he a good teacher. = He is neither a good driver nor a good teacher.
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Three years has passed before we know it.Three years has passed before we knew it. 这两个句子均为语法错误。know为静态动词,可以活用为动态动词,意为get to know。当用在before从句中时,know=get to know. 如果before从句是用一般现在时代替将来,则get to know为将来时间,主句则应该用将来完成时will have passe...
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can作为情态动词有诸多用法,如表示体力或智力方面的能力、表示理论上的可能性、表示推测(否定和疑问句中)、表示允许等。在网友提供的这个语境中,我认为牵涉can的二种用法,即能力和允许。Who did this?I really can't tell you. (could这种过去形式表示现在,属于委婉用法,这个语境中没有委婉的理由,故不该...
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if从句表示与现在或将来事实相反的假设时,不分人称一律用were,这是正式语体。但在非正式语体,当主语为单数一、三人称时,可以用was而不用were. 此时意义完全相同,只是语体有差异。不过,if I were you, 和as it were这二个结构中的were不可以用was替换。网友的句子显然是非正式语体,如果用were,虽然语法没有错误,但...
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As is shown on this two pictures: In 1900, there are a marjority of fishes in the waters while only one ship on thewaters. And yet, in 1995, there are only one fish while a host of ships on the waters.As is shown in these two pictures, in 1900 there were plenty of fishes but only one fishboat on the...
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我觉得四个句子都不妥。句首的unsave places,我觉得是句子的theme,而不是目的地或方向。所以这个句子要么改为: As for/to unsafe places, it is better not to ask children to go there.或者改为:It is better not to ask children to go to unsafe places.
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When you read/listen to the story, pay attention to when, where, why and how the event takes place.
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