题目内容
The atomic clock is ________ to within 3 seconds in a century.
- A.gradual
- B.diverse
- C.accurate
- D.medium
Is war unavoidable? Can war be prevented?
History tells that there were wars, great or small, in every century, in every decade. Throughout the ages, from the Stone age to the Atomic Age, men have been fighting, first with swords and shields(盾), then with guns and cannons, and now, hydrogen bombs and missiles are used for military purpose. But, in spite of all these, it is still my belief that war can be prevented and peace can be won, but it requires the effort of every one of us.
I am sure that we would not like to experience another world war. If it ever happens, two-thirds of the world and much of the civilization which men have gained through time, patience and effort will be destroyed. Will then the remaining one-third of the world be able to survive on its own?
Our task now is not to blame the past, but to plan for the future.
If there is peace in the world, men can use their rockets to explore the mystery of space, their submarines to explore the depth of the sea, their missiles to deliver mails and their fine equipment to penetrate(穿透) the jungles of Africa, instead of using them military.
Governments can use their money to build more schools, so that more children can be educated to be useful citizens. Scientists can use atomic energy to propel (推动) steamships and planes. They can also design new machines to increase the production of goods and thus improve the way of living of the people.
How can a peaceful world be achieved? It requires, in my opinion, the understanding and friendship between all people from all nations. Let no one suffer discrimination by reason of color, race, religion, or national origin. Let the rich support the poor and the strong help the weak.
We know that neither peace nor such a dream world can come true in a day or a month. It may even take decades or centuries. But let us plan and begin now.
1.The best title for this passage is _________.
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A.The Past and the Future |
B.To Die or To Survive |
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C.War and Peace |
D.Understanding and Friendship |
2.In the writer’s opinion, __________.
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A.it is too difficult to achieve peace |
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B.peace can be won through the efforts of all human beings |
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C.another world war is inevitable |
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D.wars will always exist in the world |
3.We can infer from the passage that __________.
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A.wars were not expensive in the past |
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B.wars can promote the development of weapons |
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C.things for military use can be transformed to peaceful use |
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D.as long as there are wars, people’s way of living cannot be improved |
4.What should we do to achieve peace?
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A.Spend more money educating children. |
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B.Stop military exploration |
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C.Call on people to help each other |
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D.Act from right now on. |
5.Which word can best describe the writer’s picture of the future of the world?
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A.Optimistic |
B.Pessimistic |
C.Imaginative |
D.Disappointing |
Linus Pauling,the only person who has won two undivided Nobel Prizes,was born in Portland,Oregon. He attended Washington High School but because of an unimportant detail he did not receive his diploma until 1962,long after he had received his Bachelor’s degree in chemical engineering from Orgon State College in 1922. He had chosen to study his major because he could get a good job with it.
He won the Nobel Prize for Chemistry in 1954 for his research into the nature of the chemical bond and its application to the explanation of the structure of complex substance. His interest in the “behavior” of molecules(分子) led him from physical chemistry to biological chemistry,especially of the human body. He began with proteins and their main parts,the amino acids(氨基酸),which are called the“building blocks of life”.In 1950,he constructed the first satisfactory model of a protein molecule,a discovery very important to the understanding of the living cell.
During World WarⅡ,Pauling was a member of the Research Board for National Security,for which he was awarded the Presidential Medal of Merit in 1948. However,the use of the atomic bomb near the end of the war turned Pauling in a new direction. Having long worked on the structure of molecules,he took an immediate interest in the deadly effects of nuclear fallout on human molecular structures.
From then on,Pauling protested the production of the hydrogen bomb and supported the prevention of the spread of nuclear weapons. Through his efforts,The NuclearTestBan Treaty,declaring all nuclear tests to be illegal except underground ones,came into effect on October 10,1963,the same day Linus Pauling was awarded the Nobel Peace.
1.From the first Paragraph,we learn that Linus Pauling________.
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A.didn’t study hard while in Washington High School |
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B.is the only scientist who has won two Nobel Prizes |
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C.was once badly treated in Washington High School |
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D.chose to study chemical engineering to earn his living |
2.Which of the following things did Pauling pay much attention to at first?
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A.The “behavior” of molecules. |
B.Physical chemistry. |
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C.Biological chemistry. |
D.The human body. |
3.Which of the following is legal according to The NuclearTestBan Treaty?
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A.The use of nuclear weapons. |
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B.Testing hydrogen bomb on the ground. |
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C.Testing hydrogen bomb on underground. |
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D.The production of hydrogen bombs. |
4.The main idea of the passage is to show________.
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A.Linus Pauling’s attitude towards nuclear weapons |
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B.Linus Pauling’s contributions to the world |
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C.Linus Pauling’s research on the structure of molecules |
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D.Linus Pauling’s got the Nobel Prize for Peace |