题目内容
（请给出正确答案）
What was another contribution by Edison to the movies？
A．He introduced the 35 mm standard machine to the world.
B．He introduced the 35 mm as the international standard film width.
C．He created a 35 mm standard device for showing movies.
D．He created his own standard devices for showing 35 mm film.
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Section A
Directions: In this section, you'll hear five short conversations. After each conversation, a question will be asked about what was said. The conversation and question will be read only once. Listen carefully and choose the best answer to each question.
(1)
A．30 dollars.
B．40 dollars.
C．50 dollars.
D．60 dollars.
What will make one man happy may not make another man happy. This sentence means ______ .
A．when one man feels happy, another man will feel sad
B．what will make one man happy may make another man happy also
C．different people hold different opinions about happiness
D．both A and B
What may happen to computer criminals once they are caught？ ______
A．With a bad reputation they can hardly find another job.
B．They may walk away and easily find another job.
C．They will be denied access to confidential records
D．They must leave the country to go to jail.
What does George mean by" with their tutor, or teacher"？
A．Students have either a tutor or a teacher.
B．A tutor is not the same as a teacher.
C．Tutor is another word for teacher.
D．Students have a teacher as well as a tutor.
A. takes
B. applies
C. stresses
D. counts
A、At a critical time we especially should not blame one for what has already happened.
B、The last thing we should do at this crucial moment is blaming one another for what can not be undone.
What should John Timbald do if he remains unsatisfied？
A．Return just the spray.
B．Call the President.
C．Mail another letter.
D．Request a refund.
What happened in last December？
A．A policeman shot a young man.
B．Criminality decreased.
C．Two citizens were killed.
D．Two girls were killed because they were with two members of another gang.
The author s father______.
A．didn" t do what the author had suggested
B．didn"t believe what the author had said
C．was willing to take the author" s advice
D．was glad to give the author another chance
Memory is said to be stored in the brain as a "memory trace (记忆痕) ". What makes up this trace is not known. Some scientists believe that certain chemical substances may carry certain memories. For example, one substance, when given to rats, causes them to fear the dark.
Other research into memory has to do with how the brain works. Psychologists use three means to find out bow a person remembers. For example, give a person a grocery list. Let the person memorize the list, then put it away. The most natural way to find out how much a person remembers of the grocery list is to ask what he or she remembers. This is called the method of recall. Another method is called recognition. Give the person another grocery list. Ask him or her to choose items on the first list from the items that are on only the second list. Often a person will be able to recognize things that he or she cannot recall. A third method of finding how much a person remembers is called relearning. Here the person is asked to read over the first list. The person will probably learn the list the second time faster than he did the first time. The difference in the time it takes to relearn the list is thought of as measure of how much a person has remembered.
One way of remembering something is to repeat it many times. Interest is very important. Boring lists of facts are much more difficult to remember than something that we understand and are interested in. Motivation, or wanting to do something, is also important. Motivation is linked with reward. For example, a hungry animal quickly learns how to do something if that action gets the animal food. In humans, wanting to learn is often motivation. The praise of a teacher or the knowledge that an answer is correct is rewarding.
We can learn from the 2nd paragraph that ______.
A．bad memories may cause rats to fear the dark
B．it is hard to tell what a memory trace consists of
C．chemical substances carry certain memories
D．memory is stored in the brain as a substance
