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      2. 初中英語基礎語法5數詞

        時間:2024-07-09 08:20:18 基礎英語 我要投稿
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        初中英語基礎語法5數詞

          數詞

        初中英語基礎語法5數詞

          (一)基數詞 在英語中表示數目的詞稱為基數詞,初中英語基礎語法5-數詞。

          1.基數詞的構成

         �。�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,再加末兩位數或末位數;

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

          (4)l,000以上,先從右往左數,每三位數加一個“,”,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),然后一節一節地表示。

          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)表具體數字時,hundred,thousand,million用單數。

          eg. There are six hundred students in our grade.

          (7)表不確定的數字時,數詞用復數。若帶名詞,再加of hundreds of(數百,成百上千的),thousands of(數干,成千上萬的),millions of(數百萬)

          eg,They arrived in two sand threes.他們三三兩兩地來了。

          (8)表示“…十”的數詞的復數可以表示人的歲數或年代。

          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.

          (二)序數詞 在英語中表示順序、次序的詞稱為序數詞,英語語法《初中英語基礎語法5-數詞》。

          1.序數詞的構成

         �。�1)一般在基數詞后加th

          eg.four→fourth,thirteen→thirteenth

         �。�2)不規則變化

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

          (3)以y結尾的十位整數,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”只將個位的基數詞變為序數詞。

          twenty-first,two hundred and forty-fifth

          2.序數詞的用法

          (1)序數詞作定語時,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)序數詞有時可與不定冠詞連用,表示數量上“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)序數詞的縮寫形式為:阿拉伯數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,年用基數詞,日用序數詞。

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

          (三)基數詞和序數詞都可以用來給數字編號。

          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)

          (四)分數詞的表達

          分子用基數詞,分母用序數詞,分子大于1時,分母加s

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

          (五)數學運算的表達

          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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            初中英語基礎語法5數詞

              數詞

            初中英語基礎語法5數詞

              (一)基數詞 在英語中表示數目的詞稱為基數詞,初中英語基礎語法5-數詞。

              1.基數詞的構成

             �。�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,再加末兩位數或末位數;

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

              (4)l,000以上,先從右往左數,每三位數加一個“,”,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),然后一節一節地表示。

              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)表具體數字時,hundred,thousand,million用單數。

              eg. There are six hundred students in our grade.

              (7)表不確定的數字時,數詞用復數。若帶名詞,再加of hundreds of(數百,成百上千的),thousands of(數干,成千上萬的),millions of(數百萬)

              eg,They arrived in two sand threes.他們三三兩兩地來了。

              (8)表示“…十”的數詞的復數可以表示人的歲數或年代。

              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.

              (二)序數詞 在英語中表示順序、次序的詞稱為序數詞,英語語法《初中英語基礎語法5-數詞》。

              1.序數詞的構成

             �。�1)一般在基數詞后加th

              eg.four→fourth,thirteen→thirteenth

             �。�2)不規則變化

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

              (3)以y結尾的十位整數,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”只將個位的基數詞變為序數詞。

              twenty-first,two hundred and forty-fifth

              2.序數詞的用法

              (1)序數詞作定語時,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)序數詞有時可與不定冠詞連用,表示數量上“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)序數詞的縮寫形式為:阿拉伯數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,年用基數詞,日用序數詞。

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

              (三)基數詞和序數詞都可以用來給數字編號。

              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)

              (四)分數詞的表達

              分子用基數詞,分母用序數詞,分子大于1時,分母加s

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

              (五)數學運算的表達

              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.