题目内容
No one knows exactly ______ this important discovery was made.
| A．that | B．that how | C．what | D．when |
D
解析
Thinking
| Some scientists claim that we humans are the only living things that are conscious(有意识的)-we alone are aware that we are thinking. No one knows how consciousness works –it is one of science’s last great mysteries. All your thoughts take place in the cerebrum(大脑皮质),which is at the top of your brain, and different kinds of thought are linked to different areas, areas, called association areas. Each half of the cerebrum has four rounded ends called lobes(脑叶)-two at the front (frontal and temporal lobes)and two at the back (occipital and parietal lobes). The frontal lobe is linked to your personality and it is where you have your bright ideas. The temporal lobe is where you hear and understand what people say to you. The occipital lobe is where you work out what your eyes see. The parietal lobe is where you record touch, heat and cold, and pain. The left half of the brain controls the right side of the body. The right half controls the left side. One half of the brain is always dominant (in charge).Usually, the left brain is dominant, which is why 90% of people are right-handed. |
68.Which part of your cerebrum is most active when you are making a telephone call?
A. The frontal lobe. B. The temporal lobe. C. The occipital lobe. D. The parietal lobe.
69.Which of the following statements is true?
A. One’s personality has something to do with the frontal lobe.
B. Bright ideas come from the parietal lobe.
C. The occipital and temperal lobes are at the back of the cerebrum.
D. The occipital lobe is in charge of sound.
70.From the passage, we know the reason why around 10% of people are left-handed is that _______.
A.their frontal lobe is usually dominant B.their temporal lobe is usually dominant
C.their right brain is usually dominant D.their left brain is usually dominant
71 People use money to buy food, furniture, books, bicycles and hundreds of other things they need or want. When they work, they usually get paid in money.
Most of the money today is made of metal or paper. 72 One of the first kinds of money was shells.
Shells were not the only things used as money. In China, cloth and knives were used. In the Philippine Islands, rice was used as money for a long time. Elephant tusks, monkey tails and salt were used as money in parts of Africa.
The first metal coins were made in China. They were round and had a square hole in the centre. 73 Different countries have used different metals and designs for their money. 74 Sweden and Russia used copper (铜) to make their money. Later some countries began to make coins of gold and silver.
But even gold and silver were inconvenient if you had to buy something expensive. Again the Chinese thought of a way to improve money. 75 The first paper money looked more like a note from one person to another than the paper money used today.
Money has had an interesting history from the days of shell money until today.
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A．The first coins in England were made of tin (锡). |
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B．But people used to use all kinds of things as money. |
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C．No one knows for certain when people began to use money. |
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D．People strung (串连) them together and carried them from place to place. |
E. Money, as we know, is all made of paper.
F. They began to use paper money.
G. Today anyone will accept money in exchange for goods and services.