懂你英语 流利说英语 Level3 Unit2.docx

懂你英语 流利说英语 Level3 Unit2.docx

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懂你英语流利说英语Level3Unit2

Unit2

1/4

Listening

Lesson1StatsofMatter

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.

Tobefixedmeansthattheirpositionsdon’tchange.

Ifweheatthemolecules,theymovefasterandawayfromeachother.

Thesolidbeginstomelt,likeicecreamonahotday.

-Howcanwechangeasolidintoaliquid?

–heatitup.

-Howcanwechangealiquidintoasolid?

–coolitdown.

Atacertaintemperature,asolidbeginstochangeintoaliquid.

Thetemperatureatwhichasolidchangesintoaliquiddependsonthesubstances.

Forwater,thesolidbeginstochangeintoaliquidwhenitstemperaturerisestoabove100degreesCelsius.

Forsomesubstances,suchassteel,thetemperatureatwhichitbecomesaliquidismuchhigher.

Steeloftenmeltsataround1370degreesCelsius.

-Atwhattemperaturedoesicebegintomelt?

–Above0degreeCelsius.

-Whatdoesthetemperatureatwhichasubstancebeginstomeltdependon?

–Thesubstances.

Ifwecontinuetoheataliquid,themoleculesmoveevenfaster.

Atacertaintemperature,theliquidbeginstochangeintoagas.

Forwater,theliquidbeginstochangeintoagasat100degreesCelsius.Thisistheboilingpointofwater.

-Whathappensifwecontinuetoheataliquid?

–Moleculesmoveevenfaster.

Insideastar,suchasoursun,thetemperatureisveryhigh.

Everythinginsidethesunisagas.

Accordingtoscientists,thereareover65elementsinsidethesun.

Theseincludeoxygenandiron.

Over90%ofthesunishydrogengas.

-Howmanyelementsareinsidethesun?

–Morethan65.

 Lesson2TestResults

Yesterdaytherewasanimportantsciencetest.

Lisa,Tomand20otherclassmatestookthetest.

Thetestwasaboutthestatesofmatterandhowtheyaredifferent.

Therewere25questionsonthetest,andtheyhad45minutestotakeit.

Herearesomeofthetestresults.

Twostudentsgotperfectscores.

Thelowestscorewas68outofahundred.

Theaveragescorewas86.3

Elevenstudentsscoredhigherthanaverage.

Elevenstudentshadbelowaveragescores.

Tommissedtwoquestionsonthetest,sohisscorewas92.

Hisscorewastheeighthhighestintheclass.

Lisamissedtwoandahalfquestions,soherscorewas90.

Herscorewasthetenthhighestscore.

Herscorewas4pointshigherthantheaveragescore.

Lisawasdisappointedwithhertestresults.

Shestudiedhardforthetest,butshestilldidn’tdowell.

Asaresult,sheplanstostudyharderforthenexttest.

Thenexttestwillbeinabouttwoweeks.

Tomwassurprisedandhappywithhistestresults.

Hedidn’tstudyhard,sohisresultwasbetterthanheexpected.

HewasalsohappythathedidbetterthanLisadid.

Vocabulary

Lesson3Emotions

Sheisscreamingbecausesheisreallyscared.

Somethingischasinghersosheisscreamingforhelp.

Heisshoutingbecauseheisangry.

Whenhe’sreallyangryheoftenshoutslikethis.

Sheissleepingbecauseshe’stired.

Lastnightshedidn’tgetenoughsleep,sotodayshehasnoenergy.

She’scryingbecauseshe’ssad.

Shegotsomebadnewsafewminutesago.

She’ssmilingbecauseshe’shappy.

Herboyfriendjustcalledandhe’sreturningfromalongtrip.

Whoissmilingbecauseshegotsomegoodnews?

Lesson4Hobbies

Thismanishikingupamountaintrail.

Heiswearinghikingbootsandiscarryingapackonhisback.

Thismanenjoyscooking.

Heattendsacookingclassonceaweek.

Thiswomanenjoysgardening.

Shegrowsflowers,suchasroses,andvegetables,suchastomatoes,inhergarden.

Thisboylovesplayinggames.

Helikesallkindsofgames,includingthisvideogamesonhiscomputer.

Thisoldcoupleenjoystravelling.

Theytakeseveraltripsayear,oftentodifferentcountries.

Dialogue

Lesson5ReadyfortheMeeting

W:

Oh,thereyouare,finally.

M:

Yeah,I’msorry.

W:

Whyareyousolate?

Youweresupposedtobehere30minutesago.

M:

Igotonthewrongsubwaybymistake.

-Whenwashesupposedtobethere?

-30minutesago.

-Whywashelate?

–Hetookthewrongsubway.

W:

Whydidn’tyoucall?

Iwasreallyworried.

M:

Idon’thavemyphone.IleftitintheofficebecauseIwasinsuchahurrytogethere.

W:

OK,well,you’reherenow.Wedon’thavemuchtime.

M:

Yes,we’llhavetohurry.Themeetingstartsin15minutes,right?

W:

Yes,it’ssupposedto,ifeveryonegetshereontime.

-Whenisthemeetingsupposedtostart?

–in15minutes.

-Tohurrymeans..–Togofast.

W:

Didyoureadmypresentation?

M:

Yes,Ido.It’sgood,butit’sabittoolong.I’mafraidtherewon’tbeenoughtimeforquestions.

W:

Doyouhaveanysuggestions?

M:

Yes,Ido.Ithinkthecompanyintroductioncanbecutinhalf.Theyknowwhatwedo.

W:

OK,Iwon’tshowthevideo.It’sabout2minuteslong.

M:

That’sagoodidea.Thevideoisonourwebsiteandisnotthatgoodanyway.

-Whatisshegoingtocutfromherpresentation?

–thevideo.

-Whyisthepresentationabittoolong?

–Thereisn’tenoughtimeforquestions.

W:

Doyouhaveanyothersuggestions?

M:

No,Idon’t.I’msureyou’redoingagreatjob.Areyouready?

W:

Yes,I’mready.Themeetingroomisonthe21stfloor.

M:

OK,let’sgo.

-Whereisthemeetinggoingtobe?

–inameetingroom.

She’sreadytogiveherpresentationatthemeeting.

Lesson6DiscussingTestResults

Lisa:

Howdidyoudoonyesterday’ssciencetest?

Tom:

Ididbetterthanexpected.Howaboutyou?

Lisa:

Ididn’tdoverywell.IexpectedtodobetterthanIdid.

Tom:

Whatwasyourscore?

Lisa:

Igota90.Whataboutyou?

Tom:

Igota92.Ionlymissedtwoquestions.

-Howwelldidhedoonthetest?

–Hedidbetterthanexpected.

Shedidn’tdoaswellassheexpected.

Lisa:

SoyoudidbetterthanIdid.AndIreallystudyforittoo.

Tom:

Thatisasurprise.YouusuallydobetterthanIdo.

Lisa:

Yes,Iwasn’tcareful.Imadeonereallystupidmistake.

Tom:

Whatwasit?

Lisa:

Isaid90%ofthesunisHeliuminsteadofHydrogen.

Tom:

Wow.Thatwasastupidmistake.

-Whywashesurprisedbytheresult?

–Hedidbetterthanshedid.

Tom:

Whatwastheaveragescorefortheclass,doyouknow?

Lisa:

Theaveragescorewas86.3andthelowestwas68.

Tom:

Doyouknowwhogotthelowesttestscore?

Lisa:

No,Idon’t.Idon’tknowwhogotthelowestscore.

Tom:

It’sprobablyasecret.Didanyonegetaperfectscore?

Lisa:

IthinkAdaandSandibothgotperfectscore.

Tom:

Yes,theyalwaysdowell.IwishIwereassmartastheyare.

-Whatwastheaveragetestscore?

-86.3.

2/4

Listening

Lesson1Paul’sTripPlan1-2

InsixweeksPaulisgoingonatrip.

HeisgoingtoJapanandChina.

Thereareacoupleofreasonsforthetrip.

Onereasonisforbusiness.

Heisthinkingaboutstartingrestaurantsinbothcountries.

Theotherreasonisforpleasure.

Heenjoystravellingandhe’dliketovisitsomefriends.

-What’sgoingtohappeninsixweeks?

–Heisgoingonatrip.

-Whatishethinkingaboutstartinginbothcountries?

–Heisthinkingaboutstartingrestaurants.

Yesterdayhewentonlineandmadeairlinereservations.

Therewereplentyofseatsontheplane,soitwaseasy.

Healsogotagooddiscount.

Unfortunately,heneedsanewpassport.

Hisoldpassportisexpiringnextweek.

Thisissomethinghedidn’texpect.

Gettinganewpassportwilltakeatleastaweek.

Heneedstoapplyforonerightaway.

-Whydidheneedtogetanewpassport?

–Hisoldoneisexpiringsoon.

-Whatdidheneedtodorightaway?

–applyforanewpassport.

-Howlongwillittaketogetanewpassport?

–Atleastaweek.

PaulalsoneedsavisatoenterChina.

ThelasttimehewenttoChinawas3yearsago.

Gettingavisamayalsotakeaweekoreventwo.

Sohedoesn’thavemuchtime.

Heneedstohurry.

Hecan’tgetthevisauntilhegetshisnewpassport.

He’llhavetogototheChineseconsulateinToronto.

Hopefullytherewon’tbeanydelays.

-Whatmaytakeaweekortwo?

–gettingavisa.

-WhenwasthelasttimehewenttoChina?

-3yearsago.

Paulhasseveralfriendsineachcountry.

OneofhisbestfriendslivesnearMountainFuji.

Hisfriendlivesnearabeautifullakeabout3hoursfromTokyo.

Hisfriendisagreatcookandownsalittlerestaurant.

Therestaurantislocatedonahillabovethelake.

Ithasawonderfulviewandthefoodiswonderful.

Paulislookingforwardtoeatingthere.

Thenhewillspendthenightathisfriend’shouse.

-WhereisPaulgoingtostay?

–He’llstayathisfriend’shouse.

-Whatdoeshisfrienddo?

–Heownsarestaurant.

Onewaytogettohisfriend’shouseistogobytrain.

Ifhetakesatrainhisfriendwill