I.Phonetics ( 5 points)Directions:In each of the following groups of words, there are four underlined letters or letter combinations marked A, B, C and D. Compare the underlined parts and iden-tify the one that is different from the others in pronunciation. Mark your answerby blackening the corresponding letter on the Answer Sheet.
A、 penalty
B、moment
C、quarrel
D、absent
48. According to Paragraph 1,why does the author scratch his head?
A、Because he doesn' t know what to do once schools are closed.
B、Because he is not sure about the practicability of those new tests.
C、Because he is concerned that many teachers will lose their jobs.
D、Because he is not in favor of the government' s reform efforts.