[不定项选择题]共用题干 Sending E-mails to Professors

One student skipped class and then sent the professor an e-mail_______(51)for copies of her teaching notes.
Another_______(52)that she was late for a Monday class because she was recovering from drinking too much at a wild weekend party.At colleges and universities in the US , e-mail has made professors more approachable（平易近人）.But many say it has made them too accessible,_______(53)boundaries that traditionally kept students at a healthy distance.
These days,professors say,students seem to view them as available_(54)the clock, sending a steady stream of informal e-mails." The tone that they take in e-mails is pretty astounding（令人吃惊的）," said Michael Kessler, an assistant dean at Georgetown University."They'll_______(55)you to help:‘I need to know this.’""There's a fine_______(56)between meeting their needs and at the same time maintaining a level of legitimacy（正统性）as an_______(57)who is in charge."Christopher Dede,a professor at the Harvard Graduate School of Education,said_______ (58) show that students no longer defer to（听从）their professors,perhaps because they realize that professors'_______(59)could rapidly become outdated.
"The deference was driven by the_______(60)that professors were all-knowing sources of deep knowledge,"Dede said,and that notion has_______(61).For junior faculty members,e-mails bring new tension into their work,some say,as they struggle with how to_______(62).Their job prospects,they realize,may rest in part on student evaluations of their accessibility.College students say e-mail makes_______(63)easier to ask questions and helps them learn.
But they seem unaware that what they write in e-mails could have negative effects_______(64)them,said Alexandra Lahav,and associate professor of Law at the University of Connecticut.She recalled an e-mail message from a student saying that he planned to miss class so he could play with his son.Professor Lahav did not respond."Such e-mails can have consequences,"she said."Students don't understand that_______ (65)they say in e-mail can make them seem unprofessional,and could result in a bad impression." _________(51)
A.providing
B.offering
C.supplying
D.asking