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初中英語基礎(chǔ)語法5-數(shù)詞

時間:2023-04-30 02:56:27 英語語法 我要投稿
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初中英語基礎(chǔ)語法5-數(shù)詞

數(shù)詞

  六、數(shù)詞

初中英語基礎(chǔ)語法5-數(shù)詞

 �。ㄒ唬┗鶖�(shù)詞 在英語中表示數(shù)目的詞稱為基數(shù)詞。

  1.基數(shù)詞的構(gòu)成

 �。�1)1-20

  one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve,thirteen,fourteen,fifteen,

  sixteen,seventeen,eighteen,nineteen,twenty

 �。�2)21-99 先說“幾十”,再說“幾”,中間加連字符。

  23→twenty-three,34→thirty-four,45→forty—five,56→fifty-six,67→sixty-seven,78→seventy-eight,89→eighty-nine,91→ninety-one

 �。�3)101—999先說“幾百”,再加and,再加末兩位數(shù)或末位數(shù);

  586→five hundred and eighty-six,803→eight hundred and three

 �。�4)l,000以上,先從右往左數(shù),每三位數(shù)加一個“,”,第一個“,”前為thousand.第二個“,”前為

  million,第三個“,”前為billion(美式)或thousand ,million(英式),然后一節(jié)一節(jié)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 nine

  750,000,000,000→seven hundred and fifty, billion(美式) seven hundred and fifty thousand million(英式)

  2.基數(shù)詞的用法

 �。�1)作主語

  eg.Four Of them come from Paris.

 �。�2)作賓語

  eg.一 How many books would you like?

  一I would like two.

 �。�3)作表語

  eg.Seven minus two is five.

  (4)作定語

  eg.There are three people in my family·

 �。�5)作同位語

  eg. You two will go swimming with us.

 �。�6)表具體數(shù)字時,hundred,thousand,million用單數(shù)。

  eg. There are six hundred students in our grade.

 �。�7)表不確定的數(shù)字時,數(shù)詞用復(fù)數(shù)。若帶名詞,再加of hundreds of(數(shù)百,成百上千的),thousands of(數(shù)干,成千上萬的),millions of(數(shù)百萬)

  eg,They arrived in two sand threes.他們?nèi)齼蓛傻貋砹恕?/p>

 �。�8)表示“…十”的數(shù)詞的復(fù)數(shù)可以表示人的歲數(shù)或年代。

  eg. He is in his early thirties.他有三十來歲(31—34歲):

  This took place in the 1930s.這事發(fā)生在二十世紀三十年代;

  (9)表示時刻

  eg.I watch CCTV News at seven o’clock every evening.

 �。ǘ┬驍�(shù)詞 在英語中表示順序、次序的詞稱為序數(shù)詞。

  1.序數(shù)詞的構(gòu)成

 �。�1)一般在基數(shù)詞后加th

  eg.four→fourth,thirteen→thirteenth

  (2)不規(guī)則變化

  one→first,two→second,three→third,five→fifth,eight→eighth,nine→ninth,twelve——~twelfih

 �。�3)以y結(jié)尾的十位整數(shù),變y為ie再加th

  twenty→twentieth, forty→fortieth, ninety→ninetieth

 �。�4)從二十一后的“幾十幾”直至“幾百幾十幾”或“幾千幾百幾十幾”只將個位的基數(shù)詞變?yōu)樾驍?shù)詞。

  twenty-first,two hundred and forty-fifth

  2.序數(shù)詞的用法

 �。�1)序數(shù)詞作定語時,一般要與定冠詞或物主代詞連用。

  eg.Tom is their second son.

  He is the first one to come here.

  (2)序數(shù)詞有時可與不定冠詞連用,表示數(shù)量上“又—”,“再一”

  eg: He tried a second time.他又試了—次。

  Shall l ask him a third time?還要我再問他—次嗎?我已問了他兩次)

 �。�3)序數(shù)詞的縮寫形式為:阿拉伯數(shù)字加上這個詞的末尾兩個字母。

  1st 2nd,3rd,4th,20th,21st,22nd,23rd

 �。�4表示年、月、日時,年用基數(shù)詞,日用序數(shù)詞。

  2005年8月15日:(英)15,8,2005=15th,August,2005;(美)8,15,2005=August 15th,2005

 �。ㄈ┗鶖�(shù)詞和序數(shù)詞都可以用來給數(shù)字編號。

  No.1(1號),No.3bus(3路公共汽車),Room 103,(103號旁間)

  The first lesson=Lesson Two(第二課)

 �。ㄋ模┓謹�(shù)詞的表達

  分子用基數(shù)詞,分母用序數(shù)詞,分子大于1時,分母加s

  eg.1/3-one third;2/5-two fifths

 �。ㄎ澹⿺�(shù)學(xué)運算的表達

  eg.3+5=8 Three plus/and five is eight.

  9-2=7 Nine minus two is seven.

  6x5=30 Five times six is thirty /six unutilized five is thirty.

  8÷2=4 Eight divided by two is four.

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數(shù)詞05-04

初中英語基礎(chǔ)語法5-數(shù)詞

數(shù)詞

  六、數(shù)詞

初中英語基礎(chǔ)語法5-數(shù)詞

 �。ㄒ唬┗鶖�(shù)詞 在英語中表示數(shù)目的詞稱為基數(shù)詞。

  1.基數(shù)詞的構(gòu)成

 �。�1)1-20

  one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve,thirteen,fourteen,fifteen,

  sixteen,seventeen,eighteen,nineteen,twenty

 �。�2)21-99 先說“幾十”,再說“幾”,中間加連字符。

  23→twenty-three,34→thirty-four,45→forty—five,56→fifty-six,67→sixty-seven,78→seventy-eight,89→eighty-nine,91→ninety-one

 �。�3)101—999先說“幾百”,再加and,再加末兩位數(shù)或末位數(shù);

  586→five hundred and eighty-six,803→eight hundred and three

 �。�4)l,000以上,先從右往左數(shù),每三位數(shù)加一個“,”,第一個“,”前為thousand.第二個“,”前為

  million,第三個“,”前為billion(美式)或thousand ,million(英式),然后一節(jié)一節(jié)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 nine

  750,000,000,000→seven hundred and fifty, billion(美式) seven hundred and fifty thousand million(英式)

  2.基數(shù)詞的用法

 �。�1)作主語

  eg.Four Of them come from Paris.

 �。�2)作賓語

  eg.一 How many books would you like?

  一I would like two.

 �。�3)作表語

  eg.Seven minus two is five.

  (4)作定語

  eg.There are three people in my family·

 �。�5)作同位語

  eg. You two will go swimming with us.

 �。�6)表具體數(shù)字時,hundred,thousand,million用單數(shù)。

  eg. There are six hundred students in our grade.

 �。�7)表不確定的數(shù)字時,數(shù)詞用復(fù)數(shù)。若帶名詞,再加of hundreds of(數(shù)百,成百上千的),thousands of(數(shù)干,成千上萬的),millions of(數(shù)百萬)

  eg,They arrived in two sand threes.他們?nèi)齼蓛傻貋砹恕?/p>

 �。�8)表示“…十”的數(shù)詞的復(fù)數(shù)可以表示人的歲數(shù)或年代。

  eg. He is in his early thirties.他有三十來歲(31—34歲):

  This took place in the 1930s.這事發(fā)生在二十世紀三十年代;

  (9)表示時刻

  eg.I watch CCTV News at seven o’clock every evening.

 �。ǘ┬驍�(shù)詞 在英語中表示順序、次序的詞稱為序數(shù)詞。

  1.序數(shù)詞的構(gòu)成

 �。�1)一般在基數(shù)詞后加th

  eg.four→fourth,thirteen→thirteenth

  (2)不規(guī)則變化

  one→first,two→second,three→third,five→fifth,eight→eighth,nine→ninth,twelve——~twelfih

 �。�3)以y結(jié)尾的十位整數(shù),變y為ie再加th

  twenty→twentieth, forty→fortieth, ninety→ninetieth

 �。�4)從二十一后的“幾十幾”直至“幾百幾十幾”或“幾千幾百幾十幾”只將個位的基數(shù)詞變?yōu)樾驍?shù)詞。

  twenty-first,two hundred and forty-fifth

  2.序數(shù)詞的用法

 �。�1)序數(shù)詞作定語時,一般要與定冠詞或物主代詞連用。

  eg.Tom is their second son.

  He is the first one to come here.

  (2)序數(shù)詞有時可與不定冠詞連用,表示數(shù)量上“又—”,“再一”

  eg: He tried a second time.他又試了—次。

  Shall l ask him a third time?還要我再問他—次嗎?我已問了他兩次)

 �。�3)序數(shù)詞的縮寫形式為:阿拉伯數(shù)字加上這個詞的末尾兩個字母。

  1st 2nd,3rd,4th,20th,21st,22nd,23rd

 �。�4表示年、月、日時,年用基數(shù)詞,日用序數(shù)詞。

  2005年8月15日:(英)15,8,2005=15th,August,2005;(美)8,15,2005=August 15th,2005

 �。ㄈ┗鶖�(shù)詞和序數(shù)詞都可以用來給數(shù)字編號。

  No.1(1號),No.3bus(3路公共汽車),Room 103,(103號旁間)

  The first lesson=Lesson Two(第二課)

 �。ㄋ模┓謹�(shù)詞的表達

  分子用基數(shù)詞,分母用序數(shù)詞,分子大于1時,分母加s

  eg.1/3-one third;2/5-two fifths

 �。ㄎ澹⿺�(shù)學(xué)運算的表達

  eg.3+5=8 Three plus/and five is eight.

  9-2=7 Nine minus two is seven.

  6x5=30 Five times six is thirty /six unutilized five is thirty.

  8÷2=4 Eight divided by two is four.