问题 翻译题

     Indian's snake charmers are to be retrained as wildlife teachers under a plan to prevent their unique

skills and knowledge from being lost. The charmers, who make snakes dance to the sound of flutes, used

to be a traditional feature of Indian life, performing in towns and villages, until they were banned in 1972

to control the trade in snake skins.

      The government is now considering a plan to train the saperas, as they are known, to visit schools and zoos to tell children about forests and wildlife. There is also a proposal to set up a "dial a snake charmer"

service to help householders to deal with unwelcome intruders.

     "For generations they have been a feature of Indian life but now they can't earn a living for fear of

arrest," said Behar Dutt, a conservationist behind the plans," if a policeman doesn't catch them, animal rights activists report them."

     Many snake charmers have continued to work clandestinely(暗中地) since the ban, despite the threat of up to three years in jail. But their trademark clothcovered baskets, hung from a bamboo pole carried

across their shoulders, make them an easy target for police.

The fate of Shisha Nath, 56, from Badarpur, a village just outside of New Delhi, is typical of practitioners(从业者) of the dying art. "I used to earn enough to support my family and send my children to school,"  

he said. "Now it's hard to earn even $1 a day. My children want to be snake charmers. It's our identity.

We love the work. But it's become impossible."

     Next month Dutt's project to train 30 snake charmers will begin at a snake park in Pune, western India, where experts will enrich their homegrown skills with some formal knowledge.

     More than the law, though, it is the dishonest attitude of their fellow countrymen that anger many snake charmers. "We're disturbed all the time but when people want a snake removed from the house, they rush

to us," said Prakash Nath, who was ordered recently to the home of Sonia Gandhi, the Congress party

leader.

1. What do snake charmers usually do in India? (no more than 8 words)

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2. How long will a saperas be in prison if he is caught during the ban? (no more than 3 words)

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3. For what purpose will snake charmers in India be retrained as wildlife teachers?

(no more than 10 words)

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4. According to the passage, what will make snake charmers angry? (no more than 11 words)

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答案

1. Make snakes dance to the sound of flutes.

2. (About) 3 years.

3. To prevent their unique skills and knowledge from being lost.

4. The law and the dishonest attitude of their fellow countrymen.

实验题

(11分)某化学课外兴趣小组为探究铜跟浓硫酸的反应情况,设计了下图所示装置进行有

关实验:

(1)先关闭活塞a,将6.4 g铜片和12 mL 18 mol/L的浓硫酸放在圆底烧瓶中共热至反应完成,发现烧瓶中还有铜片剩余.再打开活塞a,将气球中的氧气缓缓挤入圆底烧瓶,最后铜片完全消失.

①写出上述过程中烧瓶内发生反应的化学方程式:

打开活塞a之前                                                        

打开活塞a之后                                                        

②B是用来收集实验中产生的气体的装置,但集气瓶内的导管未画全,请直接在图上把导管补充完整。

(2)实际上,在打开活塞a之前硫酸仍有剩余。为定量测定余酸的物质的量,甲、乙两学生进行了如下设计:

①甲学生设计方案是:先测定铜与浓硫酸反应产生SO2的量,再通过计算确定余酸的物质的量。他测定SO2的方法是将装置A产生的气体缓缓通过装置D,从而测出装置A产生气体的体积(已折算成标准状况)。你认为甲学生设计的实验方案中D装置中试剂为:                  (填化学式)。

②乙学生设计的方案是:将反应后的溶液冷却后全部移入到烧杯中稀释,并按正确操作配制100 mL溶液,再取20 mL于锥形瓶中,用       作指示剂,用标准氢氧化钠溶液进行滴定[已知:Cu(OH)2开始沉淀的pH约为5],选择该指示剂的理由为                                                  ,再求出余酸的物质的量,若耗去a mol/L氢氧化钠溶液b mL,则原余酸的物质的量为             mol(用含ab的表达式来表示)。

单项选择题