问题 选择题

“生物圈Ⅱ号”实验的失败给予人类深刻的启示.下列叙述中错误的是(  )

A.“生物圈Ⅱ号”实验没有科学依据,失败在情理之中

B.生物圈是人类和其他生物共同生活的唯一家园

C.目前人类科学发达的程度还不足以攻克这个科学实验课题

D.人类目前还无法建立一个适合人类生存的人造环境

答案

A、生物圈Ⅱ号是科学家模拟生物圈Ⅰ号建造的一个实验基地,虽然科学家利用先进的技术想办法提供了营养物质、阳光、空气、水、适宜的温度和生存空间等条件,但最后仍然以失败告终,A错误;

B、迄今为止,生物圈仍是人类和其它生物的唯一家园.B正确;

C、目前人类科学发达的程度还不足以攻克这个科学实验课题,C正确;

D、人类迄今为止还无法建立一个人造的适合人类永久生存的环境,D正确.

故选:A

单项选择题

阅读下面短文,从短文后各题所给的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。学科&网

Hundreds of people have formed impressions of you through that little device(装置) on your desk. And they’ve never actually   41   you. Everything they know about you   42   through this device, sometimes from hundreds of miles away.   43   they feel they can know you   44   from the sound of your voice. That’s how powerful the   45   is.

Powerful, yes, but not always   46  . For years I dealt with my travel agent only by phone. Rani, my faceless agent whom I’d never met   47  , got me rock-bottom prices on airfares, cars, and hotels. But her cold voice really   48   me. I sometimes wished to   49   another agent.

One morning, I had to   50   an immediate flight home for a family emergency. I ran into Rani’s office   51  . The woman sitting at the desk,   52   my madness, sympathetically jumped up. She gave me a   53   smile, nodded while listening patiently, and then printed out the   54   immediately. “What a wonderful lady!” I thought.

Rushing out   55   I called out over my shoulder, “By the way, what’s your name?” “I’m Rani,” she said. I turned around and saw a   56   woman with a big smile on her face waving to wish me a safe trip. I was   57  ! Why had I thought she was cold? Rani was, well, so   58  .

Sitting back in the car on the way to the airport, I figured it all out. Rani’s   59  ---her warm smile, her nods, her ‘I’m here for you’   60  ---were all silent signals that didn’t travel through wires.

60()

A.explanation

B.attitude

C.concept

D.Behavior

多项选择题