题目

关于酶与ATP的叙述，正确的是（ ）A.人体成熟的红细胞既能产生酶又能产生ATPB.酶的形成需要消耗ATP，ATP的形成需要酶的催化C.酶与ATP均具有高效性与专一性D.ATP含有核糖，而酶均不含核糖 答案：【答案】B【解析】题考查酶与ATP的知识。意在考查能理解所学知识的要点，把握知识间的内在联系的能力。A、人体成熟的红细胞由于没有细胞核和细胞器，故不能产生酶，但能产生ATP，A错误；B、酶的形成需要消耗ATP，ATP的形成需要酶的催化，B正确；C、酶具有高效性与专一性，ATP具有高效性但不具有 阅读理解 　　One day in 1965, when I was a librarian at View Ridge School in Seattle, a fourth grade teacher came to me．She had a student who finished his work before all the others and needed a challenge．“Could he help in the library?”e asked．I said,”Send him along．” 　　Soon a slight, sandy-haired boy in jeans and T-shirt appeared．“Do you have a job for me?” he asked． 　　I told him about the Dewey Decimal System for shelving books．He picked up the idea immediately．Then I showed him a pile of cards for long-overdue books that I was beginning to think had actually been returned but were misshelved with the wrong cards in them．He said,”Is it a kind of a detective job?” I answered yes, and he became a continuous detective． 　　He had found three books with wrong cards by the time his teacher opened the door and announced,”Time for rest!” He argued for finishing the finding job; she made the case for fresh air．She won． 　　The next morning, he arrived early．“I want to finish these books,” he said．At the end of the day, when he asked to be a librarian on a regular basis, it was easy to say yes．He worked untiringly． 　　After a few weeks I found a note on my desk, inviting me to dinner at the boy’s home．At the end of a pleasant evening, his mother announced that the family would be moving to a neighbor school district．Her son’s first concern, she said, was leaving the View Ridge library．“Who will find the lost books?” he asked． 　　When the time came, I said an unwilling good-bye．Though at first he had seemed an ordinary kid, his zeal(热情)had set him apart． 　　I missed him, but not for long．A few days later he came in the door and joyfully announced：“The librarian over there doesn’t let boys work in the library．My mother got me to come back to View Ridge．My dad will drop me off on his way to work．And if he can’t, I’ll walk!” 　　I should have had an idea such focused determination would take that young man wherever he wanted to go．What I could not have guessed, however, was that he would become a wizard(奇才)of the Information Age：Bill Gates, tycoon of Microsoft Microsoft and America’s richest man． (1) Why did the boy leave a deep impression on the writer? [　　] A． He worked like a detective． B． He was a zealot and worked hard． C． He was very clever and worked untiringly． D． He had strong determination． (2) Why did the boy come back instead of working in a library in a neighbor school district? [　　] A． His mother got back to View Ridge and he came along． B． His father couldn’t take him to school on his way to work． C． The librarian wouldn’t let him work in the library there． D． He missed the life in View Ridge． (3) What was the boy’s job when he was working in the library? [　　] A． He looked for books which had been lost like a detective． B． He worked on the books which had been returned but put in wrong places． C． He worked as a detective． D． He worked on the cards which had been put in wrong places． (4) Which of the following statements is true according to the passage? [　　] A． The boy shelved books by means of the Dewey Decimal System． B． When the writer was a librarian, he realized the boy would be a wizard． C． When the boy was asked to have a rest while shelving the books in the library, he refused． D． The boy worked in the library only a few weeks．