懂你英语Level 3 unit 2精编版.docx

懂你英语Level 3 unit 2精编版.docx

《懂你英语Level 3 unit 2精编版.docx》由会员分享，可在线阅读，更多相关《懂你英语Level 3 unit 2精编版.docx（19页珍藏版）》请在冰豆网上搜索。

懂你英语Level3unit2精编版

Level3unit1part1

Listening

Matterismadeofatomsandmolecules.

Water,forexample,istheH2Omolecule.

Thismeansthatamoleculeofwaterhas3atoms.

Awatermoleculehas2hydrogenatomsandoneoxygenatom.

Substanceslikesugarhavemanyatomsintheirmolecules.

Amoleculeofsugarhasmanyatoms,includingcarbine,hydrogenandoxygen.

-WhatisH2O?

Thewatermolecule.

-Whatismattermadeof?

-

Atomsandmolecules

MatterismadeofmoleculessuchastheH2Owhichisthewatermolecule.

Mattercanbeinoneof3states,solid,liquidorgas.

Waterandicearethesamesubstance,buttheyareindifferentstates.Thesestatesdependonthetemperatureofthemolecules.

Whenweheatasubstance,themoleculesmovefasterandtrytotakeupmorespace.

Whenwecoolasubstance,themoleculesmovemoreslowly.

Whenwecoolasubstancetoitsfreezingpoint,itbecomesasolid.-Howmanystatesofmatterarethere?

-

Three.

-

-Whathappenswhenweheatasubstance?

themoleculesmovefasterandtrytotakeupmorespace.

-Whathappensifwecoolaliquidtoitsfreezingpoint?

Itbecomesasolid.

Inasolid,themoleculesmoveverylittle.

Theirpositionsarealmostfixed.

Tobefixedmeansthattheirpositionsdontchange.

Ifweheatthemolecules,theymovefasterandawayfromeachother.Thesolidbeginstomelt,likeicecreamonahotday.

-Howcanwechangeasolidintoaliquid?

heatitup.

-Howcanwechangealiquidintoasolid?

coolitdown.

-

Atacertaintemperature,asolidbeginstochangeintoaliquid.

Thetemperatureatwhichasolidchangesintoaliquiddependsonthesubstances.

Forwater,thesolidbeginstochangeintoaliquidwhenitstemperaturerisestoabove0degreesCelsius.

Forsomesubstances,suchassteel,thetemperatureatwhichitbecomesaliquidismuchhigher.

Steeloftenmeltsataround1370degreesCelsius.

-Atwhattemperaturedoesicebegintomelt?

Above0degreeCelsius.

-Whatdoesthetemperatureatwhichasubstancebeginstomeltdependon?

Thesubstances.

Ifwecontinuetoheataliquid,themoleculesmoveevenfaster.

Atacertaintemperature,theliquidbeginstochangeintoagas.Forwater,theliquidbeginstochangeintoagasat100degreesCelsius.Thatistheboilingpointofwater.

-Whathappensifwecontinuetoheataliquid?

Moleculesmoveevenfaster.

Insideastar,suchasoursun,thetemperatureisveryhigh.

Everythinginsidethesunisagas.

Accordingtoscientists,thereareover65elementsinsidethesun.Theseincludeoxygenandiron.

Over90%ofthesunishydrogengas.

-Howmanyelementsareinsidethesun?

Morethan65

Yesterday,therewasanimportantsciencetest.

Lisa,Tomand20otherclassmatestookthetest.

Thetestisaboutthestatesofmatterandhowtheyaredifferent.Therewere25questionsonthetextandtherehad45minutestotakeit.Herearesomeofthetestresult.

2studentsgotperfectscores.

Thelowestscorewas68outof100.

Theaveragescorewas86.3.

11studentsscorehigherthanaverage.

11studentshavebelowtheaveragescores.

Tommissed2questiononthetestsohisscorewas92.

Hisscorewas8highestintheclass.

Lisamissed2andahalfquestionsoherscoreis90.

Herscoreis10highestscore.

Herscoreis4pointshigherthantheaveragescore.

Lisawasdisappointedwithhertestresults.

Shestudiedhardforthetestbutshestilldidntdowell.

Asaresult,sheplanstostudyharderfornexttest.

Thenexttestwillbeinabout2weeks.

Tomwassurprisedandhappywithhisresults.

Hedidntstudyhardsohisresultwasbetterthanheexpected.

HewasalsohappythathedidbetterthanLisadid.

Vocabulary

Sheisscreamingbecausesheisreallyscared.

Somethingischasinghersosheisscreamingforhelp.

Heisshoutingbecauseheisangry.

Whenhesreallyangryheoftenshoutslikethis.

Sheissleepingbecauseshestired.

Lastnightshedidntgetenoughsleep,sotodayshehasnoenergy.Shescryingbecauseshessad.

Shegotsomebadnewsafewminutesago.

Shessmilingbecausesheshappy.

Herboyfriendjustcalledandhesreturningfromalongtrip.

Whoissmilingbecauseshegotsomegoodnews?

Thismanishikingupamountaintrail.

Heiswearinghikingbootsandiscarryingapackonhisback.

Thismanenjoyscooking.

Heattendsacookingclassonceaweek.

Thiswomanenjoysgardening.

Shegrowsflowers,suchasroses,andvegetables,suchastomatoes,inhergarden.

Thisboylovesplayinggames.

Helikesallkindsofgames,includingthisvideogamesonhiscomputer.Thisoldcoupleenjoystravelling.

Theytakeseveraltripsayear,oftentodifferentcountries

Dialogue

W:

Oh,thereyouare,finally.

M:

Yeah,Imsorry.

W:

Whyareyousolate?

Youweresupposedtobehere30minutesago.M:

Igotonthewrongsubwaybymistake.

-Whenwashesupposedtobethere?

-

-30minutesago.

-Whywashelate?

Hetookthewrongsubway.

W:

Whydidntyoucall?

Iwasreallyworried.

M:

Idonthavemyphone.IleftitintheofficebecauseIwasinsuchahurrytogethere.

W:

OK,well,youreherenow.Wedonthavemuchtime.

M:

Yes,wellhavetohurry.Themeetingstartsin15minutes,right?

W:

Yes,itssupposedto,ifeveryonegetshereontime.

-Whenisthemeetingsupposedtostart?

-

in15minutes.

-Tohurrymeans..

Togofast.

W:

Didyoureadmypresentation?

M:

Yes,Ido.Itsgood,butitsabittoolong.Imafraidtherewontbeenoughtimeforquestions.

W:

Doyouhaveanysuggestions?

M:

Yes,Ido.Ithinkthecompanyintroductioncanbecutinhalf.Theyknowwhatwedo.

W:

OK,Iwontshowthevideo.Itsabout2minuteslong.

M:

Thatsagoodidea.Thevideoisonourwebsiteandisnotthatgoodanyway.

-Whatisshegoingtocutfromherpresentation?

thevideo.

-

-Whyisthepresentationabittoolong?

-

Thereisntenoughtimeforquestions.

W:

Doyouhaveanysuggestions?

M:

No,Idont.Imsureyouredoingagreatjob.Areyouready?

W:

Yes,Imready.Themeetingroomisonthe21stfloor.

M:

OK,letsgo.

-Whereisthemeetinggoingtobe?

-

inameetingroom.

-

Shesreadytogiveherpresentationatthemeeting.

Lisa:

Howdidyoudoonyesterdayssciencetest?

Tom:

Ididbetterthanexpected.Howaboutyou?

Lisa:

Ididntdoverywell.IexpectedtodobetterthanIdid.

Tom:

Whatwasyourscore?

Lisa:

Igota90.Whataboutyou?

Tom:

Igota92.Ionlymissedtwoquestions.

-Howwelldidhedoonthetest?

Hedidbetterthanexpected.

Shedidntdoaswellassheexpected.

Lisa:

SoyoudidbetterthanIdid.AndIreallystudyforittoo.

Tom:

Thatisasurprise.YouusuallydobetterthanIdo.

Lisa:

Yes,Iwasntcareful.Imadeonereallystupidmistake.

Tom:

Whatwasit?

Lisa:

Isaid90%ofthesunisHeliuminsteadofHydrogen.

Tom:

Wow.Thatwasastupidmistake.

-Whywashesurprisedbytheresult?

Hedidbetterthanshedid.

Tom:

Whatwastheaveragescorefortheclass,doyouknow?

Lisa:

Theaveragescorewas86.3andthelowestwas68.

Tom:

Doyouknowwhogotthelowesttestscore?

Lisa:

No,Idont.Idontknowwhogotthelowestscore.

Tom:

Itsprobablyasecret.Didanyonegetaperfectscore?

Lisa:

IthinkAdaandSandibothgotperfectscore.

Tom:

Yes,theyalwaysdowell.IwishIwereassmartastheyare.-Whatwastheaveragetestscore?

-

-86.3

Level3unit1part2

Listening

InsixweeksPaulisgoingonatrip.

HeisgoingtoJapanandChina.

Thereareacoupleofreasonsforthetrip.

Onereasonisforbusiness.

Heisthinkingaboutstartingrestaurantsinbothcountries.

Theotherreasonisforpleasure.

Heenjoystravellingandhedliketovisitsomefriends.

-Whatsgoingtohappeninsixweeks?

-

Heisgoingonatrip.

-Whatishethinkingaboutstartinginbothcountries?

Heisthinkingaboutstartingrestaurants.

Yesterdayhewentonlineandmadeairlinereservations.

Therewereplentyofseatsontheplane,soitwaseasy.

Healsogotagooddiscount.

Unfortunately,heneedsanewpassport.

Hisoldpassportisexpiringnextweek.

Thisissomethinghedidntexpect.

Gettinganewpassportwilltakeatleastaweek.

Heneedstoapplyforonerightaway.

-Whydidheneedtogetanewpassport?

-

Hisoldoneisexpiringsoon.

-Whatdidheneedtodorightaway?

-

applyforanewpassport.

-Howlongwillittaketogetanewpassport?

Atleastaweek.

PaulalsoneedsavisatoenterChina.

ThelasttimehewenttoChinawas3yearsago.

3

Gettingavisamayalsotakeaweekoreventwo.

Sohedoesnthavemuchtime.

Heneedstohurry.

Hecantgetthevisauntilhegetshisnewpassport.

HellhavetogototheChineseconsulateinToronto.

Hopefullytherewontbeanydelays.

-Whatmaytakeaweekortwo?

-

gettingavisa.

-WhenwasthelasttimehewenttoChina?

-

-3yearsago.

Paulhasseveralfriendsineachcountry.

OneofhisbestfriendslivesnearMountainFuji.

Hisfriendlivesnearabeautifullakeabout3hoursfromTokyo.

Hisfriendisagreatcookandownsalittlerestaurant.

Therestaurantislocatedonahillabovethelake.

Ithasawonderfulviewandthefoodiswonderful.

Paulislookingforwardtoeatingthere.

Thenhewillspendthenightathisfriendshouse.

-WhereisPaulgoingtostay?

-

Hellstayathisfriendshouse.

-Whatdoeshisfrienddo?

-

Heownsarestaurant.

Onewaytogettohisfriendshouseistogobytrain.

Ifhetakesatrainhisfriendwillmeethimatthetrainstation.

Theresatrainstationabouthalfanhourfromhisfriendshouse.Ontheotherhandhemaydecidetogobycar.

Hecanrentacarforafewdaysandseemoreofthecountry.

HecanuseaGPStohelphimwithdirections.

HedoesntspeakJapanesesothedirectionsneedtobeinEnglish.-WhydothedirectionsneedtobeinEnglish?

-

He