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| 根据所给基数词，写出相应的序数词。 | ||
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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________。
查看习题详情和答案>>把下面短文中的I都换成Tony,注意动词和其他部分的变化
On weekdays I get up at six o'clock. I have breakfast and go to work. I like to ride my bike. I like music so I often buy CDs. I usually send friends cards for birthday.?
I come back at five. I have dinner and watch TV.?
I usually go to concerts but I don't go to the cinema on Sunday.?
→On weekdays Tony ? 1 ? up at six o'clock. Tony ? 2 ? breakfast and ? 3 ? to work. Tony ? 4 ? to ride ? 5 ? bike. Tony ? 6 ? music so Tony often ? 7 ? CDs. Tony usually ? 8 ? friends cards for birthday.?
Tony ? 9 ? back at five. Tony ? 10 ? dinner and watches TV.?
Tony usually ? 11 ? to concerts but Tony ? 12 ? go to the cinema on Sunday.
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1.由于大雪，飞行员只得把飞机降落到另一座城市的一个飞机场。
______________ _____ the snow, the pilot had to land the plane at an airport in another city.
2.老师不会鼓励学生在考试前才温书至深夜，他们应该上课时专心听讲才对。
Teachers do not encourage students to pull an all night for exams. They should _____ _______during lessons.
3.当你遇到问题的时候不要放弃，试试其他方法。
Don’t _____ _____ when you have a problem, try another way.
4.她根据遗嘱获得了一大笔财产。
She bagged a fabulous fortune _________________ _____ the will.
5.我给你五美元请你帮我看下车。
I pay you 5 dollars to _____ _________ my car.
6.我穿了一件红外套以便他能很容易地看见我。
I put on a red coat _____ _____________he could see me easily.
7.妇女们带着孩子排队领取食物。
Women _____ _____ with children for the food.
8.每早他都骑车载我去上学。
Every morning he _____ _____ _____ _____ school.
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