[单项选择]Since the beginning of this century, more and more scientists have become interested in the way how the human brain works.（　）
A. Since the beginning
B. have become
C. in
D. the way how

[单项选择](Since the beginning) of this century, more and more scientists (have become) inter-ested (in) (the way how) the human brain works.


A. Since the beginning
B. have become
C. in
D. the way how

[单项选择]PASSAGE TWO About a century ago more people would not have appreciated the study of a foreign language as they do today. Gone are those days when patriotism towards one’s own language was a major obstacle to learning foreign languages, a time when most nations were trying to throw their alien rulers out of their countries in their freedom struggles.Gone are those days when people were proud of their mother or father tongues and considered that their native languages alone will suffice the need to survive. Language skills today have become as important as other business and career skills like IT, vocational or professional skills. Thus learning a foreign language today has become essential for an individual whether it is for careers, growing a business, or even to make an impression. All that one needs to possess these days is a drive to learn a foreign language and there are all kinds of institutes and courses that teach various foreign languages like French, German, Spanish, and J
A. it was too difficult
B. it was not allowed
C. it was seen as disloyalty
D. it was taught by foreign rulers

[单项选择]

At the beginning of the century, medical scientists made a surprising discovery: that we are (1) not just of flesh and blood but also of time. They were able to (2) that we all have an internal "body clock" which (3) the rise and fall of our body energies, making us different from one day to the (5) . These forces became known as biorhythms: they create the (5) in our everyday life.
The (6) of an internal "body clock" should not be too surprising, (7) the lives of most living things are dominated by the 24-hour night-and-day cycle. The most obvious (8) of this cycle is the (9) we feel tired and fall asleep at night and become awake and (10) during the day. (11) the 24-hour rhythm is interrupted, most people experience unpleasant side effects.
(12) , international aeroplane travelers often experience "jet lag" when traveling across time (13) . Pe
A. built
B. shaped
C. molded
D. grown