题目

生态系统一般都包括（    ） A.生产者、消费者、分解者                 B.生产者和非生物部分 C.生物部分和非生物部分                   D.消费者和非生物部分 答案：C       Sam and Joe were astronauts．There was once a very dangerous trip and the more experienced astronauts knew there was only a small chance of coming back alive(活着)．Sam and Joe, however, thought it would be exciting though a little dangerous．“We’re the best men for the job,” they said to the boss．“There may be problems, but we can find the answers．” “They’re the last people I’d trust,” thought the boss．“But all the other astronauts have refused to go．” Once they were in space, Joe had to go outside to make some repairs．When the repairs were done, he tried to get back inside the spaceship．But the door was locked．He knocked but there was no answer．He knocked again, louder this time, and again no answer came．Then he hit the door as hard as he could and finally a voice said, “Who's there?” “It’s me! Who else could it be?” shouted Joe．Sam let him in all right but you can imagine that Joe never asked to go on a trip with Sam again! 1．Most of the astronauts do not want to go on the trip because        ． A．it wasn’t exciting enough                  B．they weren’t experienced enough C．they thought they might get killed            D．there was little chance of being chosen 2．Why were Sam and Joe chosen? A．The boss wanted them to get more experience． B．The boss trusted them more than anyone else． C．They were the last people who wanted to go． D．They were the only men who want to go． 3．What did Sam and Joe think the trip would be like?      A．It would be exciting．                          B．There wouldn’t be any danger．      C．It would be long and tiring．                D．There would be serious problems． 4．Joe didn't want to work with Sam again because he thought Sam        ． A．was very slow and possibly deaf(聋)           B．didn’t know how to open the door C．was less experienced than he was                D．didn’t know how to do repairs 5．The writer tells this story to        ． A．show the dangerous side of the astronauts’ life B．make people laugh       C．show the funny side of the astronauts’ life D．make people think