亚洲免费人人妻人人,cao78在线视频,福建一级毛片,91精品视频免费观看,高清另类图片操逼,日本特黄特色大片免费看,超碰欧美人人澡曰曰澡夜夜泛

初中英語(yǔ)基礎(chǔ)語(yǔ)法5-數(shù)詞

時(shí)間:2023-04-30 02:56:27 英語(yǔ)語(yǔ)法 我要投稿
  • 相關(guān)推薦

初中英語(yǔ)基礎(chǔ)語(yǔ)法5-數(shù)詞

數(shù)詞

  六、數(shù)詞

初中英語(yǔ)基礎(chǔ)語(yǔ)法5-數(shù)詞

 �。ㄒ唬┗鶖�(shù)詞 在英語(yǔ)中表示數(shù)目的詞稱(chēng)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(shuō)“幾十”,再說(shuō)“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(shuō)“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(gè)“,”,第一個(gè)“,”前為thousand.第二個(gè)“,”前為

  million,第三個(gè)“,”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(yǔ)

  eg.Four Of them come from Paris.

 �。�2)作賓語(yǔ)

  eg.一 How many books would you like?

  一I would like two.

 �。�3)作表語(yǔ)

  eg.Seven minus two is five.

 �。�4)作定語(yǔ)

  eg.There are three people in my family·

  (5)作同位語(yǔ)

  eg. You two will go swimming with us.

 �。�6)表具體數(shù)字時(shí),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(shí),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(wàn)的),millions of(數(shù)百萬(wàn))

  eg,They arrived in two sand threes.他們?nèi)齼蓛傻貋?lái)了。

 �。�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(lái)歲(31—34歲):

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

 �。�9)表示時(shí)刻

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

 �。ǘ┬驍�(shù)詞 在英語(yǔ)中表示順序、次序的詞稱(chēng)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(gè)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(yǔ)時(shí),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(shí)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(wèn)他—次嗎?我已問(wèn)了他兩次)

 �。�3)序數(shù)詞的縮寫(xiě)形式為:阿拉伯?dāng)?shù)字加上這個(gè)詞的末尾兩個(gè)字母。

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

 �。�4表示年、月、日時(shí),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(lái)給數(shù)字編號(hào)。

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

  The first lesson=Lesson Two(第二課)

 �。ㄋ模┓�?jǐn)?shù)詞的表達(dá)

  分子用基數(shù)詞,分母用序數(shù)詞,分子大于1時(shí),分母加s

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

 �。ㄎ澹⿺�(shù)學(xué)運(yùn)算的表達(dá)

  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.

【初中英語(yǔ)基礎(chǔ)語(yǔ)法5-數(shù)詞】相關(guān)文章:

英語(yǔ)語(yǔ)法專(zhuān)項(xiàng)講解:基數(shù)詞11-30

「中考英語(yǔ)」語(yǔ)法基礎(chǔ)-205-04

「中考英語(yǔ)」語(yǔ)法基礎(chǔ)-805-04

「中考英語(yǔ)」語(yǔ)法基礎(chǔ)-405-04

「中考英語(yǔ)」語(yǔ)法基礎(chǔ)-605-04

「中考英語(yǔ)」語(yǔ)法基礎(chǔ)-105-04

「中考英語(yǔ)」語(yǔ)法基礎(chǔ)-305-04

「中考英語(yǔ)」語(yǔ)法基礎(chǔ)-505-04

「中考英語(yǔ)」語(yǔ)法基礎(chǔ)-705-04

數(shù)詞05-04