沪教牛津版八年级上册 Numbers Grammar课件.pptxVIP

Unit2Numbers

Grammar

数词概述

★数词的定义

表示数目多少或顺序先后的词叫数词。

★数词的分类：数词分为基数词和序数词。★基数词作用：表示数目或数量多少。

★序数词作用：表示顺序和等级。

★数词在句中的成分：可作主语、宾语、表语、定语和同位语等。

HaveALook

1.Thenumberofstudentsinourclassis54.

2.Idlikeonegrainofriceforthefirstsquareofthechessboard,...

3.Itisworththreehundred.

4.Thelittleboywasbornin11Dec.2018.

5.MoYanwontheNobelPrizeforLiteraturein2012.6.Whoisthewoman,thesecondinthesecondline?

ROADTOGRAMMARFocuson

用法

cardinalnumbers

1.基数词的概念

2.基数词的构成

3.基数词的用法

一、基数词的概念

Weusecardinalnumberstocountthings.

1.Peoplefromabout180countriesandareaslive

inNewYork.

2.TheCNToweris1,815feettall.

3.RedSquareinMoscowisabout91,000square

metresinsize.

4.Francehasanareaofover26,000squaremiles.

5.Thereareabout8,000,000peoplelivingin

London.

6.Tokyo,thecapitalofJapan,hasover13,000,000

people.

13～19为对应的个位数单词(或变形)后加-teen:

thirteenfourteenfifteensixteen

seventeeneighteennineteen

3

three

13

thirteen

11

eleven

15

fifteen

12

twelve

18

eighteen

二、基数词的构成

Zero

five

ten

one

six

eleven

two

seven

twelve

0～12为基本单词：

three

eight

four

nine

20twenty70seventyTipWhenwesaythirteen,westressthesecondsyllable.

50fifty98ninety-eightstressthefirstsyllable.

20～90为其对应个位数单词(或变形)后加-ty:twentythirtyfortyfiftysixty

seventyeightyninety

21～99的两位数，十位与个位之间用连字符“-”:

26twenty-six99ninety-nine

30thirty82eighty-twoWhenwesaythirty,we

100onehundred

200twohundred

375threehundredandseventy-five

101～999的三位数，百位数和十位数(若无十位数则和个位数)之间用and连接，百后用单数形式：

103a/onehundredandthree

225twohundredandtwenty-five

999ninehundredandninety-nine

数字为例：

6,500,431,729

billionmillionthousand

sixfivefourhundred

billion,