粗心与细心(Careless and Careful)

educatorshaveknownforalongtimethatpeoplelearnindifferentways.thatiswhyteacherspresentinformationinvariousforms.for...

peoplearetalkingaboutthe"neweconomy"itsverytheyseepeopleface-to-faceattheirjoborinstores.peoplegetinformationfromn...

laptopcomputersarepopularallovertheworld.peopleusethemeverywhere.theyconnectpeopletotheirworkplace.intheunitedstat...

everythingintheworldisinconstantstruggle,struggleinthesenseofcompetitioninnaturalselectionamongorganisms.animalsan...

manyyoungpeoplegotouniversitieswithoutaclearideaofwhattheyaregoingtodo.ifoneconsidersthevariouscoursesoffered,itis...

deareditor,youcanfindlanguagepollutionwheneveryouopenanewspaper,turnonyourtvset,orlistentoaradio.languagepollution...

youthisnotatimeoflife;itisastateofmind;itisnotamatterofpinkcheeks,redlipsandflexibleknees;itisamatterofwill,aquali...

oneoftheadvantagesofbeingselfemployedisthattheprofitthebusinessmakesbelongstotheowner.iftheself-employedpersonsucc...

thesummerjobisatraditionamongstudentsofamericanuniversities.longbeforetheendoftheschoolyear,studentsbegintheirsear...

carefulandcarelessareasdifferentasfireandwater.butstrangely,manyscientistshaveboththesequalities,thatis,theyarebot...

nothingintoday＇sworldisasbigaproblemasthatofpopulation.peoplebegintoworryaboutthesupportcapacityoftheearth.andthe...

badhabitsstartgrowingonalmosteveryoneofuswithoutbeingnoticed.oncewerealizethebadhabitsoroncetheyarepointedouttous,...