Unit1TheChangingWorldTopic2

Thepopulationindevelopingcountriesisgrowingfaster.SectionB30thirty40forty90ninetytwenty2050607080fiftysixtyseventyeightyReview（說(shuō)出下列數(shù)字的英文表達(dá)）LeadintwothousandandeightOlympicGamesCanyoureadthefollowingnumberscorrectly?LeadinCanyoureadthefollowingnumberscorrectly?ninebillion,sixtymillion,twentythousand,onehundredandfour90600201049060020104LeadinHowtoreadnumbers?3.141002,0003,000,0004,000,000,000threepointonefouronehundredtwothousandthreemillionfourbillion119367589onehundredandnineteenthreehundredandsixty-sevenfivehundredandeighty-nineReview（說(shuō)出下列數(shù)字的英文表達(dá)）543.715623980fivehundredandforty-threepointsevenonethousand,fivehundredandsixty-twothreethousand,ninehundredandeightyReview（說(shuō)出下列數(shù)字的英文表達(dá)），，thousand1,000,000,000one

billion/?b?lj?n/

十億1,000,000one

million/?m?lj?n/

一百萬(wàn)1,000one

thousand100one

hundred

Look,readandlearn

說(shuō)出下列數(shù)字的英文表達(dá)3.14Look,readandlearn

說(shuō)出下列數(shù)字的英文表達(dá)point點(diǎn)

three

point

onefour20.56twenty

point

fivesix78.72seventy-eight

point

seventwoLeadinHowtoreadnumbers?First,trytoseparatethenumberingroupsofthreefromrighttoleft.Thenreaditinorderfrombilliontomillionandthousand.1

001001

0011,001,001,001thousandmillionbilliononebillion,onemillion,onethousandandoneLeadinListen,readandlearn543.7156260040017198764502P12fivehundredandforty-threepointsevenonethousand,fivehundredandsixty-twosixmillion,fourthousandandonesevenbillion,onehundredandninety-eightmillion,sevenhundredandsixty-fourthousand,fivehundredandtwoLeadinHaveatry973398098721768540P12ninehundredandseventy-threethreethousand,ninehundredandeightyninety-eightthousand,sevenhundredandtwenty-onesevenhundredandsixty-eightthousand,fivehundredandforty973398098721768540ninehundredandseventy-threethreethousand,ninehundredandeightysevenhundredandsixty-eightthousand,fivehundredandfortyninety-eightthousand,sevenhundredandtwenty-oneHaveatryListento1aandmatchtheinformation.1.theworld2.China3.India4.theUSAA.309millionB.6.8billionC.1.3billionD.1.1billionBrainstormPleasesayoutthewordsaboutnumbersinEnglish.百hundred千thousand百萬(wàn)milliom十億billiomObservethenumbersandtelltherules.973ninehundred

and

seventy-three3980threethousand,ninehundredandeighty98721ninety-eightthousand,sevenhundredandtwenty-one768540sevenhundredandsixty-eightthousand,fivehundred

andfortycarryout實(shí)行，進(jìn)行，執(zhí)行。e.g.Itwon’tbeaneasyplantocarryout.

那并不是一個(gè)容易實(shí)施的計(jì)劃。e.g.Thisisanewpolicy,andtheywillcarryitoutnextyear.

這是一項(xiàng)新政策，他們將在明年實(shí)施它。Choosethebestanswer.1.—______isthepopulationofRussia?—143million.

A.HowmuchB.HowmanyC.What

D.How2.Thereare______studentsinourschool.

A.threethousandsB.threethousandsofC.threethousandof

D.threethousand3.—Jennyalwayshelpsothers.—______.

A.Soisshe B.SosheisC.Sodoesshe D.Soshedoes4.ThepopulationofChinais______thanthatofJapan.

A.larger B.moreC.fewer D.lessCDDApopulation人口，通常用

large/big/small修飾。作主語(yǔ)時(shí)，謂語(yǔ)動(dòng)詞常用單數(shù)形式ThepopulationofChinaislarge.針對(duì)人口數(shù)量提問(wèn)時(shí)，特殊疑問(wèn)詞用WhatWhatisthepopulationofChina.擁有...人口：haveapopulationof強(qiáng)調(diào)人口的具體分布或構(gòu)成時(shí)，謂語(yǔ)動(dòng)詞用復(fù)數(shù)形式80%ofthepopulationinChinaarefarmers.2346780823465804050000005555555555twomillion,threehundred

andforty-sixthousand,sevenhundred

andeightyeighty-twomillion,threehundred

andforty-sixthousand,fivehundred

andeightyfourhundred

andfivemillionfivebillion,fivehundred

andfifty-fivemillion,fivehundred

andfifty-fivethousand,fivehundred

andfifty-fiveFirst,trytoseparatethenumberingroupsofthreefromrighttoleft.Thenreaditinorderfrombilliontomillionandthousand.1,000,000,000billionmillionthousandPleasereadoutthefollowingnumbers.7.2billionsevenpointtwobillion82million1.36billion1.27billion323millioneightmilliononepointthreesixbilliononepointtwosevenbillionthreehundredandtwenty-threemillionRead1aandfillintheblanks.

Theworldhasapopulationof6.8billionanditisincreasingby__________everyyear._______hasthelargestpopulation.Ithasalreadyreached__________andIndiais_________with1.1billion.Thepopulationindevelopingcountriesis______andisgrowing________thanthatindevelopedcountries.Luckily,ourcountryhascarriedoutthe___________policytocontrolthepopulation.80millionChina1.3billionsecondlargerfasterone-childsummaryWelearn:1.ReadnumbersinEnglish.2.Talkaboutpopulationproblems.Wecan:1.Somewords:population,billion,increase,reach,luckily,policy,Russia,measure2.Somephrases:increaseby,developingcountries,developedcountries,carryout,theone-childpolicy3.Somesentences: