[摘要]
41 The role of the body clock is to
A enable us to sleep 6 hours a day.
B help us adapt to a 24-hour cycle.
C regulate the body’s functions.
D interfere with the body’s...
41 The role of the body clock is to
A enable us to sleep 6 hours a day.
B help us adapt to a 24-hour cycle.
C regulate the body’s functions.
D interfere with the body’s functions.
42 The word “malady” in Paragraph 4 is closest in meaning to
A “condition”.
B “discomfort”.
C “injury”.
D “excitement”.
43 Flying in a westward direction will
A help you sleep better.
B increase the degree of jet lag.
C shrink your day.
D make you overeat.
44 Which of the following in NOT mentioned as a reason for the disrupted sleep of travelers?
A Crossing different time zones.
B Changing light and activity levels.
C Working longer hours.
D Watching out of the plane for a long time.
45 It can be seen from the last two paragraphs that
A you can control your own body clock.
B it is not difficult to adjust to a new time zone.
C adjusting your watch can help you a avoid jet lag.
D there isn’t much you can do to avoid jet lag.