Unit1HomeGrammar课件译林版七年级英语下册(1)-2

one

o

one

twO

one

twO

one

twO

one

twO4My

sister

Annie

is

nine

years

old,and

she

is

in

Grade

4.fourfifteen/a

quarter

to

seven5

Mum

usually

gets

up

at

6:45

in

the

morning.

six

forty-five6My

computer

costs

4,550

yuan.four

thousand

five

hundred

and

fifty7I

was

born

in1994.nineteen

ninety-fourPresentationReadthetiponpage12andanswerthefollowingquestions.(1)Howdoweformmostordinalnumbers?Pleasegiveoneortwoexamples.Weformmostordinalnumbersbyadding-thtothecardinalnumbers.e.g.four→fourthseventeen→seventeenthWeusecardinalnumbersalmosteveryday.No.3333No.801CollegeStreetNo.7playerPage50810yuanTalkwithyourpartneraboutyourhomeandfamily,using

cardinalnumbers.Li

Mengtian

lives

on

the

twenty-second

floor.

Her

birthday

is

on

the

twentieth

ofFebruary.She

is

in

the

seventh

grade.She

is

alwavs

the

first

in

her

class

to

get

to

school.Read

and

summariseThenwhatdoyouknowaboutordinal

numbers?Read

thesentencesbelowaboutLiMengtianand

pay

attention

to

the

use

ofordinal

number.We

use

ordinal

numbers

to

talk

about

the

order

of

things

and

events.We

use

them

to

talk

aboutgrades,dates,

floors

positions,etc.表示“一亿”用onehundredmillion英语中表示“万”用tenthousand;表示“十万”用onehundredthousand;表示“千万”用tenmillion;二、请根据图片内容，选择合适的基数词完成句子。

1.Thereare__________circlesontheOlympicflag.2.Abutterflyhas__________wings.3.Thereare__________monthsinoneyear.4.Aspiderhas__________legs.5.__________minutesisonehour.用法（1）基数词主要用于表达确切的数量。金钱年龄蝴蝶的种类Imakefivehundreddollarsaweek.TheirsonDylanistwelve.Theyhaveabutterflyhousewithover200kindsofbutterflies！Itisabout10milesfromhere.距离表示次序the

second

boy第二个男孩表示日期the

seventeenth

of

January一月十七日表示生日his

thirtieth

birthday他的三十岁生日表示名次come

first获得第一名表示楼层the

third

floor第三(四)层序数词的常见用法911715422554218ninehundredandelevensevenhundredandfifteenfourhundredandtwenty-twofivehundredandfifty-fourtwohundredandeighteenCanyoureadthenumbers?注意：读数字时，百位和十位中间要加and在表示一个具体的数目时，hundred，thousand，million，billion后面都不能加-s。如：twohundred，sevenmillion等。Thereareabouttwothousandstudentsinmyschool.Hundredsofpeoplewerereportedkilledorwoundedintheearthquake.在表示一个不确定的数目时，应用hundreds，thousands等加介词of来表示。Exercises:一、请将下列基数词变为其相应的序数词。1.one__________

2.two__________

3.three__________

4.five___________5.eight_________

6.nine__________

7.ten___________

8.tw