问题 多项选择题

零存整取定期储蓄的特点:收益高于活期储蓄,具有()功能,储蓄效果明显。

A.计划性

B.灵活性

C.约束性

D.积累性

答案

参考答案:A, C, D

完形填空

“Hi! John.” Mary ran towards me with a bright smile, saying, “I’m going to have a dance performance tonight. I hope you’ll come. Here is the ticket. Don’t forget!” Then she    41  in a hurry.
“What? Dance? Is that    42  ?” I asked myself. Mary was not such kind of girl. She was quite common one. I had never seen her wearing colorful clothes. In fact, she really did not know    43   to dress up. What a terrible thing!
“I should go to, I must go to.” I thought.
I arrived at the hall with the ticket, found my seat and sat down. Her performance was the seventh one. I knew I would have a    44   time before her turn, for I had no sense of art,    45   her performance was worth(值得)watching, no matter how long I would wait.
Time went    46  , I tried my best not to fall asleep.
Just then, came the words, “Let’s welcome the next exciting dance – Latin!”
Hearing this, I opened my eyes as large as possible,    47   to lose anything. Wearing a golden and shiny skirt, Mary appeared. She danced with a sweet smile, looking like a pretty butterfly flying … I could    48   believe my eyes.
After all the performance ended, I    49   her at the gate.
“Hi!” She stood in front of me with her crystal(水晶) shoes. “How do you feel?”
“Fantastic!” I answered.
“Ha, ha. I knew it would be.” She could not hide her excitement, laughing    50  a child.
At that time, I realized that every girl has a pair of special shoes which are like the crystal shoes of Cinderella.
小题1:
A.cameB.jumpedC.leftD.moved
小题2:
A.possibleB.luckyC.funnyD.careful
小题3:
A.why B.whereC.whenD.how
小题4:
A.greatB.shortC.hardD.relaxing
小题5:
A.orB.soC.butD.and
小题6:
A.quicklyB.slowlyC.safelyD.easily
小题7:
A.hopingB.fearingC.planningD.hating
小题8:
A.seriouslyB.hardlyC.nearlyD.certainly
小题9:
A.waited forB.looked forC.paid forD.cared for
小题10:
A.asB.likeC.forD.at
阅读理解与欣赏

阅读文段,回答问题。

迎接氢能时代的到来

江河

  能源是人类的一个大问题。目前,在世界上的一次性能源中,有40%是由石油提供的。科学家预测,到了21世纪中期,人类就将面临石油危机。

  19世纪以前,人们使用的燃料都是固体的燃料,一部分是天然的木材,一部分是从不深的地壳里挖掘出来的煤炭,这样的时代叫固体燃料时代。20世纪后,科学技术突飞猛进。一方面,科学技术的发展使得地下挖掘技术发达起来,煤和石油更容易开采了,尤其是大型油井开采技术十分成熟;另一方面,新的交通工具和大型工厂的出现,使得人类对石油的需求量大増。两方面相互促进,使得人类对石油的开采越来越厉害,石油的产量越来越高,人类进入了液体燃料时代。煤和石油虽然在地下经历了亿万年的积累,然而终将有消耗殆尽的时候。因此科学家提出,21世纪将是燃气时代。一方面,天然气的资源暂时还比较丰富;另一方面,天然气也比石油和煤更环保一些。其燃烧产生的二氧化碳的量仅为石油的70﹪。天然气的储藏量也相当大。

  然而比起氢气来,天然气的环保效果就差远了。纯净的氢气不仅发热量高,而且燃烧后一点也不污染环境,不仅不会产生有毒废气,而且不会产生导致温室效应的二氧化碳,它的唯一产物是不对环境产生污染的水。氢气是可再生的燃气资源,它可以通过分解水来获得,它的产物又是水,所以氢气简直就是取之不尽、用之不竭的新能源。既然这样,我们以前怎么就没有想到使用它呢?这是个成本问题,由于现在分解水获得氢气的技术还不是很完善,故燃烧氢气的成本比石化燃料要高得多。随着科学技术的发展,制造氢气的成本会越来越低。德国目前已经开始进行液体和气体氢供给基本建设项目的准备,计划到2010年将建成约3000个氢气气站。

  研制环保汽车已成为全球汽车业的主攻方向。一些国际汽车集团在环保汽车产品的开发方面下了大力。利用氢气制造的氢动力燃料电池可作为汽车的动力来源。在底特律举办的2002年国际车展上,通用汽车公司“自主魔力”氢动力概念车首次亮相。科学家预测,从2020年开始,将在天然气中加入15﹪的氢,到21世纪后期,人类将慢慢过渡到使用纯净氢气的时代。(摘自《今晚报》,有删改)

1.能源的发展经历了哪几个时代?

答:_________________________________

2.氢气作为新能源有哪些优点?(用原句作答)

答:_________________________________

3.划线句“这两方面相互促进”中“这”指代什么?

答:_________________________________

4.划线句“它的唯一产物是不对环境产生污染的水”中“唯一”能删吗?为什么?

答:________________________________

5.本文使用了多种说明方法,请任选一种简析其效果。

答:_________________________________