[简答题]According to scientists, we use only 10 persent of our brain.

[简答题]It is only when we cannot see perfectly that we realize how important our eyes are.

[单项选择]

Cooperation is the only safeguard we have against the development of neurotic tendencies. It is there- fore very important that children should be trained and encouraged in cooperation, and should be allowed to find their own way amongst children of their own age, in common tasks and shared games. Any barrier to cooperation will have serious consequences. The spoilt child, for example, who has learned to be interested only in himself, will take this lack of interest in others to school with him. His lessons will interest him only in so far as he thinks he gains his teachers’ favor. He will listen only to what he considers advantageous to himself. As approaches adulthood, the result of his lack of social feeling will become more and more evident. When he first misunderstood the meaning of life, he ceased training himself for responsibility and independence. By now he is painfully ill-equipped for life’s tests and difficulties.
We cannot blame the adult for the
A. lack of interest in others.
B. self-centeredness.
C. unintelligence.
D. lack of social feeling.

[填空题]We modem people eat not only when we are hungry but also when we are in bad mood.

[单项选择]Not only (we lost) all our (memory), but we (also) came close to (losing) our lives.
A. we lost
B. memory
C. also
D. losing

[单项选择]According to the passage, scientists have concluded which of the following from the discovery of the large amount of deuterium found in comets
A. Comets do not contain enough deuterium to have solely created the Earth’s oceans.
B. Given the ratio of deuterium to ordinary hydrogen in seawater, comets cannot have contributed to the Earth’s oceans.
C. It is likely that comets contain less Xenon than meteorites do.
D. Given the low level of deuterium in the waters of Earth’s oceans, comets cannot be its sole source.
E. Comets now play a greater role in the creation of the Earth’s oceans than was previously thought.

[单项选择]According to some scientists, human beings do possess some super-natural power.
A. numerous
B. numinous
C. luciferous
D. ludicrous

[填空题]According to many scientists, solar energy will be used ______ (extend) in the 21 st century.