题目内容
小博士:仔细观察下面的句子,找找看,它们的用法有什么不同呢?试着填写完下表。
你看看下面的句子正确吗?不对的请你把它改正。
解析:
1.× caps改为cap 2.√ 3.× these改为this 4.× that改为those 5.√ |
小博士:仔细观察下面的基数词和对应的序数词的区别和变化,你会发现这种变化是有规律的,你能归纳出来吗?请根据规律填出所缺的基数词和序数词,并特别注意黑体字的词。
one | first | eleven | eleventh | twenty-one | twenty-first |
two | second | twelve | twelfth | twenty-two | twenty-second |
three | third | thirteen | thirteenth | twenty-three | twenty-third |
four | fourth | fourteen | fourteenth | twenty-four | ______ |
five | fifth | fifteen | ______ | twenty-five | twenty-fifth |
six | sixth | sixteen | sixteenth | twenty-six | twenty-sixth |
seven | ______ | seventeen | seventeenth | twenty-seven | twenty-seventh |
eight | eighth | eighteen | eighteenth | twenty-eight | twenty-eighth |
nine | ninth | nineteen | nineteenth | twenty-nine | twenty-ninth |
ten | tenth | twenty | twentieth | thirty | thirtieth |
thirty-one | thirty-first fortieth ninetieth | hundred | hundredth | ||
forty | thousand | thousandth | |||
ninety | million | millionth |
我找到规律了!请看:
1 英语序数词1~19,除first,second,third等特殊形式外,其余的一般是在相应的基数词后加-th构成。
2 有几个序数词加-th时拼法不规则,要注意。如fifth,________ ________ ________。
3 十位整数的序数词的构成方法是先将其基数词的词尾“ty”中的“y”改为“i”,再加“-eth”。如________。
4 基数词“几十几”变成序数词时,只需将个位数变成序数词,十位数不变。如________。