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
45. What is the conclusion of the study?
A、Apple consumption has greatly reduced US adults' trips to the doctor.
B、An apple a day does keep the doctor away.
C、Apples are far more nutritious than oranges.
D、A small number of US adult apple eaters tend to take less medicine.
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.