208 PartUS ISentenceStructure
A Collegelecture
1ProfessorSanchezgavea lectureontransistorslastTuesday.2First,he
explainedwhataretransistors.3Hesaid,thattheyareverysmallelectronic
devicesusedin telephones,automobiles,radios,andsoon.4Hefurther
explainedthattransistorscontroltheflowofelectriccurrentin electronic
equipment.5Hewantedtoknowwhichpopulartechnologicalinventioncannot
operatewithouttransistors.6Moststudentsagreed,it is thepersonalcomputer.
7ProfessorSanchezthenaskedif thestudentsknowhowdotransistorsfunction
incomputers.8Hesaidthatthetransistorswereetched!intotinysilicon
microchipsandthatthesetransistorsincreasecomputers'speedanddata
storagecapacity.9Thenheaskedtheclasswhenhadtransistorsbeeninvented?
10Sergeiguessedthattheywereinventedin1947.11Theprofessorsaidthatheis
correct.12ProfessorSanchezthenaskedwhatwastheimportanceofthis
invention?13Manystudentsansweredthatit is thebeginningoftheinformation
age.14Attheendofthelecture,theprofessorassigneda paperontransistors.
15Herequestedthateachstudentchoosesa topicbynextMonday.16He
suggestedthatthepapersaretyped.WritingPractice..
Imaginethatyouaregoingtograduatefromtheuniversitya yearfromnow,andyou
areinterestedinseeingwhatkindsofpositionsemployersareofferingtograduates
inyourfield(business,engineering,teaching,andsoon).Youcouldlookinyour
localnewspapertoseewhatjobopportunitiesareavailable.Thefollowingareexam-
plesofadsthatyoumightfind.Jetched:cutintothesurface