七年级英语下册-Unit-1-Dream-Homes-Grammar

Unit1DreamhomesGrammar1/41Cardinalnumbers基数词Ordinalnumbers序数词Numbers2/41Weusecardinalnumbersalmosteveryday.Weusethemtotalkaboutthenumbers(数量)ofpeopleorthings.cardinalnumbers基数词3/41Weusecardinalnumbersalmosteveryday.No.8Bus2boys5magazinesPage2510yuan4/410onetwothreefourfivesixseveneightnineten12345678910/'zɪərəʊ/

Let’sreadthesecardinalnumbers.zero5/41eleventwelve11121314151617181920nineteenthirteenfourteenfifteensixteenseventeeneighteenLet’sreadthesecardinalnumbers.twenty6/41twenty-onetwenty-two2122232425twenty-threetwenty-fourtwenty-five十位和个位之间要加连字符“-”7/4130405060708090thirtyfortyfiftysixtyseventyeightyninety8/41100200300400one

hundredtwohundredthreehundredfourhundred/ˈhʌndrəd/Canyoureadthenumbers?9/411000500060009000one

thousandfivethousandsixthousandninethousandCanyoureadthenumbers?/ˈθaʊznd/10/411,000,0005,000,0008,000,000onemillionfivemillioneightmillionCanyoureadthenumbers?/ˈmɪljən/百万11/411）当表示详细数量时，不能在其后加“s”和“of”e.g.threehundred/eightthousand2）当表示泛指数量时用以下形式:hundredsof…thousandsof…millionsof…1.hundred,thousand,million数百…数千…数百万…12/41篮子里有数百个鸡蛋。

Thereare______________eggsinthebaskets.hundreds

of13/41这儿有数千个苹果。

Hereare______________apples.thousands

of14/41102(onehundredandtwo)100(onehundred)Canyoureadthenumbers?2.读三位以上数字时，要在十位前加“and”;如十位是0,则在个位前加“and”539(fivehundredandthirty-nine)222(twohundredandtwenty-two)15/41Canyoureadthenumbers?911715422554218ninehundredandelevenseven

hundred

and

fifteenfourhundred

andtwenty-twofive

hundred

and

fifty-fourtwohundred

andeighteen16/412,000=_____thousand4,306=_____thousand,_____________

23,813=_____________thousand,___________________________567,110=______________________

thousand,____________________

fourtwenty-threefivehundredand

sixty-seven

Howdowesayit?onehundredandten

eighthundredand

thirteenthreehundredandsixtwo17/411,000,000=_____million2,334,206=_____million,______________________thousand,__________________88,333,555=_____________million,_______________________thousand,_____________________999,000,000=______________________milliontwothreehundredand

thirty-fourninehundredandninety-nine

Howdowesayit?eighty-eightfivehundredand

fifty-fivethreehundredand

sixonethreehundredand

thirty-three18/415673,28010,943123,4569,070,81145,607,760Trytowritethenumbersfivehundredandsixty-seventhreethousand,tenthousand,onehundredandtwenty-threethousand,ninemillion,forty-fivemillion,twohundredand

eightyninehundredandforty-threeseventythousand,eighthundredand

elevensixhundredandseventhousand,sevenhundredand

sixtyfourhundredand

fifty-six19/41Findtherightnumbers.__1.tenthousand,twohundredandsix__2.onehundredandtwenty-six__3.onehundredthousand,twohundredandsixty__4.twelvethousandandtwenty-six__5.onemillion,twohundredthousandandtwenty-six__6.onethousandandtwenty-six__7.onehundredandtenthousand,twohundredandsixa.1,026b.10,206c.110,206d.126e.100,260f.12,026g.1,200,026bdefgac20/411.Peoplefromabout180countriesandareasliveinNewYork.2.TheCNToweris1,815feettall.3.RedSquareinMoscowisabout91,000squaremetresinsize.4.Francehasanareaofover260,000squaremiles.5.Thereareabout8,000,000peoplelivinginLondon.6.Tokyo,thecapitalofJapan,hasover13,000,000people.onehundredandeightyonethousandeighthundredandfifteenninety-onethousandtwohundredandsixtythousandeightmillionthirteenmillionLearningaboutdifferentcountries21/41Weuseordinalnumberstoorderthingsandevents.Weusethemtotalkaboutdates(日期),floors(楼层),positions(位置),etc.ordinalnumbers序数词22/41Ordinalnumbers(序数词)Tomis2yearsold.Todayishis_______birthday.second生日23/41theeighthofMarchWomen’sDayison___________________.日期Ordinalnumbers(序数词)24/41Christmasison____________________.Ordinalnumbers(序数词)thetwenty-fifthofDecember日期25/41Therearefifteenfloorsinthebuilding.Elsalivesonthe________floor.Wilsonlivesonthe_________floor.seventh楼层twelfth26/41Janeisatopstudent.Shealwaysgets____intheexam(考试).first次序27/41autumn

springsummerwinterTherearefourseasonsinayear.Winteristhe_____seasonoftheyear.fourth次序28/41Decemberisthe_____monthoftheyear.twelfth次序29/41我们生活在21世纪。Weliveinthe___________century(世纪).

twenty-firstOrdinalnumbers(序数词)30/41

序数词利用：序数词可用来表示日期、生日、楼层、次序等。序数词前要加定冠词“the”e.g.Ourflatisontheseventhfloor.(3)序数词前有sb’s修饰时，不加“the”.e.g.ThisisTom’s/hisfourteenthbirthday.(4)起副词作用，不加“the”e.g.Simoncamefirstintherunninggame.31/41

numbers

Cardinalnumbers

Ordinalnumbersnumbers

Cardinalnumbers

Ordinalnumbers1onefirst11eleveneleventh2twosecond12twelvetwelfth3threethird13thirteenthirteenth4fourfourth14fourteenfourteenth5fivefifth15fifteenfifteenth6sixsixth16sixteensixteenth7sevenseventh17seventeenseventeenth8eighteighth18eighteeneighteenth9nineninth19nineteennineteenth10tententh

1.序数词1━19:除first,second,third,fifth,eighth,ninth,twelfth改变不规则外,其余均由在基数词后加上“th”。32/41口诀以下：

基变序，有规律，词尾加上th。

一二三,特殊记，面目全非要注意。

八去t,九减e,若是-ve来结尾，变成f莫迟疑。

33/41

numbers

Cardinalnumbers

Ordinalnumbers20twentytwentieth30thirtythirtieth40fortyfortieth50fiftyfiftieth60sixtysixtieth70seventyseventieth80eightyeightieth90ninetyninetieth

2.十位整数序数词:将基数词词尾“y”

变成“ie”再加“th”。

34/41

numbers

Cardinalnumbers

Ordinalnumbers100ahundredahundredth1,000athousandathousandth1,000,000amillionamillionth3.整百、整千、整百万序数词:hundredth,thousandth，millionth35/41

numbers

Cardinalnumbers

Ordinalnumbers21twenty-onetwenty-first22twenty-twotwenty-second23twenty-threetwenty-third34thirty-fourthirty-fourth45forty-fiveforty-fifth4.几十几序数词:十位数不变,把个位数变成序数词。36/41seventhfifteenthfourthsecondninthtwelfth37/41Exercises

用所给词适当形式填空.Hegetsthe

(one)intheEnglishtestthistime.2.Tomwillcomeonthe________(twelve)ofthismonth.3.Thereare_______daysinaweek.Saturdayisthe_______day.(seven)4.Thisismy

(three)timetocometoRussia.5.Mr.Greenis_______yearsold.Hewillcelebratehis_________birthdaynextweekend.(四十)6.Thebuildinghas_______(十九)floors.Itis__________(九十)meterstall.Weliveonthe_______(九)floor.Andmygrandparentslive______(九)floorsabove(在…上面)us.Myunclelivesonthe___________(十九)floor.firsttwelfthsevensevenththirdfortyfortiethni