What two possible reasons are given for some people’s desire to participate in dangerous sports?
A.A lack of common sense, and a high level of arousal.
B.A low level of arousal, and an inborn desire for adventure.
C.The pleasure that results from the production of nor adrenaline. and a low level of arousal.
D.A desire to show off. and a lack of common sense.

Why do psychologists believe that people with a high level of arousal try to avoid danger?
A.Because they already have the level of excitement which the brain tries to maintain.
B.Because they are more aware of the dangers involved.
C.Because they already have enough of the two hormones, adrenaline and nor adrenaline.
D.Because they would not be able to cope with accidents.

What kinds of substances are adrenaline and nor adrenaline?
A.Subatomic particles.
B.Minerals
C.Vitamins
D.Hormones.

Which of the following does adrenaline do?
A.It weakens the muscles.
B.It makes people afraid.
C.It makes the heart beat more quickly.
D.It makes the heart beat more slowly.

Where were the parachutists when, according to the passage. they produced large amount the two hormones?
A.On an airplane
B.In the air
C.On the ground
D.At sea

Swimming/ very/ attractive/form/ exercise/ which/ make/ swimming/ excellent/ way/ improve/ wind/ capacity/ endurance.
A.Swimming, a very attractive form of exercise, which makes swimming an excellent way improves wind capacity and endurance.
B.Swimming is a very attractive form of exercise which makes swimming an excellent way improving the wind of capacity and endurance.
C.Swimming is a very attractive form of exercise. which makes swimming excellently way improving the wind, capacity, and endurance.
D.Swimming is a very attractive form of exercise. which makes swimming an excellent way to improve wind capacity and endurance.

Years ago, women’s place was______
A.in the Parliament Houses
B.in the Congress
C.in the Town Hall
D.in the kitchen

In a man-dominated society__________
A.all parents expected to have daughters
B.most parents liked girl babies
C.most parents did not want to have daughters
D.most parents did not like sons

Nowadays, women have proved that they are ________men.
A.more intelligent than
B.more important than
C.stronger than
D.equal to

Little they knew in 1926, when the first T.V. broadcast began, that it would have such an impact people’s everyday lives.
A.they knew
B.when the first T.V broadcast
C.it would have
D.such an impact