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        1. 小博士:仔細(xì)觀察下面的句子,找找看,它們的用法有什么不同呢?試著填寫(xiě)完下表。

          How much is that cap?
          It's seven dollars.
          How much is the long T-shirt?
          It's thirteen dollars.
          How much are these pants?
          They are thirty dollars.
          How much are the socks?
          They are twenty dollars.

          你看看下面的句子正確嗎?不對(duì)的請(qǐng)你把它改正。

          1.How much is this caps?
          ________
          ________
          2.How much are those socks?
          ________
          ________
          3.How much is these T-shirt?
          ________
          ________
          4.How much are that pants?
          ________
          ________
          5.The apples are seven yuan.
          ________
          ________
          答案:
          解析:

            1.× caps改為cap

            2.√

            3.× these改為this

            4.× that改為those

            5.√


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          小博士:仔細(xì)觀察下面的基數(shù)詞和對(duì)應(yīng)的序數(shù)詞的區(qū)別和變化,你會(huì)發(fā)現(xiàn)這種變化是有規(guī)律的,你能歸納出來(lái)嗎?請(qǐng)根據(jù)規(guī)律填出所缺的基數(shù)詞和序數(shù)詞,并特別注意黑體字的詞。

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          我找到規(guī)律了!請(qǐng)看:

          1  英語(yǔ)序數(shù)詞1~19,除first,second,third等特殊形式外,其余的一般是在相應(yīng)的基數(shù)詞后加-th構(gòu)成。

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