英语实用写作lesson 2

英语实用写作lesson 2

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时间:2018-07-28

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1、•Inthispartyouwillreadseveraldefinitionparagraphs.Aftereachofthedefinitionsanameofathingisgivenfollowedbysomeinformationaboutit.Writeextensivedefinitionsofthegivennamesmodelingaftertheexamples.•Vitaminisachemicalcompoundthatthehumanbodyneedsinsmallamounts

2、.Vitaminsmakeuponeofthemajorgroupsofnutrientsandregulatechemicalreactionsbywhichthebodycovertsfoodintoenergyandlivingtissues.•Protein:oneofthemainclassesoffoods,essentialtoanimals,obtainfromwhattheyeat,behighinproteincontents,cheese,eggs,meat,fish,milk,ma

3、keupalargepartof,build,maintain,repair,tissue,bone,muscles•Proteinisoneofthethreemainclassesoffoodessentialtothebodyofhumanbeingandotheranimals.Theyobtainproteinsfromthefoodstheyeat.Foodsthatarehighinproteincontentincludecheese,eggs,fish,meatandmilk.Allpr

4、oteincontainiron,phosphorusandsulfur.Proteinsarelarge,complexmoleculesmadeupofsmallerunitsandtheymakeupalargepartofeachcell.Therefore,theyareimportantinbuilding,maintainingandrepairingbodytissues,especiallybonecartilageandmuscle.•Measurementranksasoneofou

5、roldestskills.Itistheprocessoffindingouthowmanymeasuringunitsthereareinsomething.Theseunitsincludeinches,meters,pound,grams,andhours.•Calculation:aprocess,add,subtract,multiply,divide,findaresult••Minuteisaunitusedtomeasurebothtimeandangles.Intime,60minut

6、esmakeuponehourandeachminuteisdividedinto60seconds.Inmeasuringangles,60minutesmakeuponedegree,andacircleisdividedinto360degrees.•Degree:anamegiventosmallunitsofmeasure,geometry,maps,measurementofangles,arcsofcircles,temperature•Degreeisanamegiventovarious

7、smallunitsofmeasure.Ingeometryandonmaps,adegreeisaunitofmeasurementofanglesandofarcofcircles.Anangleofonedegreeis1/90ofarightangle.Anarcofonedegreeis1/360ofawholecircle.Degreesingeometryaredividedinto60unitscalledminutes.Degreesarealsounitsofmeasurementof

8、temperature.OnedegreeoftemperatureontheFahrenheitscaleis1/100ofthedifferencebetweenthetemperaturesofmeltingiceandboilingwater.OnedegreeontheCelsiusscaleoftemperatureis1/100ofthesamedifference.•Aguaranteedannualwagei

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