最新英语六级阅读题全真模拟练习
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The establishment of the Third Reich influence events in American history by starting a chain of event, which culminated in war between Germany and the United states. The complete destruction of democracy, the persecution of Jew, the war on religion, the cruelty and barbarism of the Nazis, and especially, the plans of Germany and her allies, Italy and Japan, for world conquest caused great indignation in this country and brought on fear of another world war. While speaking out against Hitler’s atrocities, the American people generally favored isolationist policies and neutrality. The Neutrality Acts of 1935 and 1936 prohibited trade with any belligerents or loans to them. In 1937 the President was empowered to declare an arms embargo(禁运)in wars between nations at his discretion.
American opinion began to change somewhat after president Roosevelt’s “quarantine the aggressor” speech at Chicago (1937) in which he severely criticized Hitler’s policies. Germany’s seizure of Austria and the Munich Pact for the partition of Czechoslovakia (1938) also aroused the American people. The conquest of Czechoslovakia in March 1939 was another rude awakening to the menace of the Third Reich. In August 1939 came the shock of Nazi-Soviet Pact and in September the attack on Poland, the outbreak of European war. The United States attempted to maintain neutrality in spite of sympathy for the democracies arrayed against the Third Reich. The Neutrality Act of 1939 repealed the arms embargo and permitted “cash and carry” exports of arms to belligerent nations. A strong national defense program was begun. A draft act was passed (1940) to strengthen the military service. A Lend Lease Act (1941) authorized the President to sell, exchange, or lend materials to any country deemed necessary by him for the defense of the United States. Help was given to Britain by exchanging certain overage destroyers for the right to establish American bases in British territory in the Western Hemisphere. In August 1941, President Roosevelt and Prime Minister Churchill met and issued the Atlantic Charter that proclaimed the kind of a world which should be established after the war. In December 1941, Japan launched the unprovoked attack on the United States at Pearl Harbor. Immediately thereafter, Germany declared war on the United States.
1.One item occurring before 1937 that the author does not mention in his list of actions that alienated the American public was ___.
A.Nazi barbarism
B.The pacts with Italy
C.German plans for conquest
D.The burning of the Reichstag
2.The Neutrality Act of 1939 ___.
A.restated America’s isolationist policies
B.proclaimed American neutrality
C.permitted the selling of arms to belligerent nations
D.was a cause of our entrance into World War Ⅱ
3.An event that did not occur in 1939 was the ___.
A.invasion of Poland
B.invasion of Czechoslovakia
C.passing of the Neutrality Act
D.establishment of the University of Leipzig in Germany
4.The Lend Lease Act was blueprinted to ___.
A.strengthen our national defense
B.provide battleships to the Allies
C.help the British
D.promote the Atlantic Charter
5.The Neutrality Act of 1939 favored Great Britain because ___.
A.the British had command of the sea
B.the law permitted us to trade only with the Allies
C.it antagonized Japan
D.it led to the Lend Lease Act
答案：DCDAA
35
Computers have been taught to play not only checkers, but also championship chess, which is a fairly accurate yardstick for measuring the computer’s progress in the ability to learn from experience.
Because the game requires logical reasoning, chess would seem to be perfectly suited to the computer .all a programmer has to do is give the computer a program evaluating the consequences of every possible response to every possible move, and the computer will win every time. In theory this is a sensible approach; in practice it is impossible. Today, a powerful computer can analyze 40 000 moves a second. That is an impressive speed. But there are an astronomical number of possible moves in chess—literally trillions. Even if such a program were written (and in theory it could be ,given enough people and enough time), there is no computer capable of holding that much data.
Therefore, if the computer is to compete at championship levels, it must be programmed to function with less than complete data. It must be able to learn from experience, to modify its own programm, to deal with a relatively unstructured situation—in a word, to “think” for itself . In fact, this can be done. Chess-playing computers have yet to defeat world champion chess players, but several have beaten human players of only slightly lower ranks. The computers have had programs to carry them through the early, mechanical stages of their chess games. But they have gone on from there to reason and learn, and sometimes to win the game.
There are other proofs that computers can be programmed to learn, but this example is sufficient to demonstrate the point. Granted , winning a game of chess is not an earthshaking event even when a computer does it . But there are many serious human problems which ban be fruitfully approached as games. The Defense Department uses computers to play war games and work out strategies for dealing with international tensions. Other problems—international and interpersonal relations , ecology and economics , and the ever-increasing threat of world famine—can perhaps be solved by the joint efforts of human beings and truly intelligent computers .
1 The purpose of creating chess-playing computers is __________
A to win the world chess champion B to pave the way for further intelligent computers
C to work out strategies for international wars D to find an accurate yardstick for measuring computer progress
2 Today , a chess-playing computer can be programmed to ________
A give trillions of reponses in a second to each possible move and win the game
B function with complete data and beat the best players
C learn from chess-playing in the early stage and go on to win the game
D evaluate every possible move but may fail to give the right response each time
3 For a computer to “think” , it is necessary to ________
A mange to process as much data as possible in a second B program it so that it can learn from its experiences
C prepare it for chess-playing first D enable it to deal with unstructured situations
4 The author’s attitude towards the Defense Department is____
A critical B unconcerned C positive D negative
5 In the author’s opinion,______
A winning a chess game is an unimportant event B serious human problems shouldn’t be regarded as playing a game
C ecological problems are more urgent to be solved D there is hope for more intelligent computers
答案B C B C D
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