英语中;21-99 先说“几十”，再说“几”，中间加连字符。
摘要: Shewasmovedbyhisspeech.她被他的演说感动了。Theywerefrightenedtohearthefrighteningsound.他们听到那可怕的声音很害怕。过去分......
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She was moved by his speech. 她被他的演说感动了。 They were frightened to hear the frightening sound.他们听到那可怕的声音很害怕。 过去分词作表语时与被动语态的区别 "be十过去分词"表示状态时，是系表结构，此时分词通常已形容词化；表示动作时，是被动语态，且绝大多数被动结构中的动作执行者由介词by引出。 The book was written by a soldier，这本书是一位战士写的。(被动语态，强调主语所承受的动作) The book is well written，这本书写得很好。(系表结构，强调主语所处的状态) 人教高中英语单词mp3 人教版初中英语单词表 人教版高中英语音频 数词的定义：表示数目多少或顺序多少的词叫数词，数词分为基数词和序数词。表示数目多少的数词叫基数词;表示顺序的数词叫序数词。 01基数词 基数词的构成(1)1-20 one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve,thirteen,fourteen,fifteen, sixteen, seventeen, eighteen, nineteen, twenty 21-99 先说“几十”，再说“几”，中间加连字符。 23→twenty-three,34→thirty-four,45→forty—five,56→fifty-six,67→sixty-seven,78→seventy-eight,89→eighty-nine,91→ninety-one aid n．& vt.帮助；援助；资助 【归纳拓展】 aid sb. with sth.以某物帮助某人 aid sb. in (doing) sth.在某方面帮助某人 aid sb. to do sth.帮助某人做某事 come/go to sb.'s aid来/去帮助某人 with the aid of在……的帮助下 in aid of为了援助 101—999先说“几百”，再加and,再加末两位数或末位数; 586→five hundred and eighty-six,803→eight hundred and three l,000以上,先从右往左数，每三位数加一个“,”,第一个“,”前为thousand.第二个“,”前为 million,第三个“,”前为billion(美式)或thousand ,million(英式),然后一节一节地表示。 1,001→one thousand and one 9,785→nine thousand, seven hundred and eighty-five 18,423→eighteen thousand, four hundred and twenty-three 6,260,309→six million two hundred and sixty thousand three hundred and In some countries, people eat with chopsticks, while in ________， knives and forks. A. another B. others C. both D. all The manager was satisfied to see many new products ________ after great effort. A .having developed B .to develop C .developed D .develop 
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