古人曰：“骏马行千里，耕田不如牛；坚车能载重，渡河不如舟；舍长以求短，智者难为谋

V和w这两个人中的每一个人在周二都恰好吃了四顿饭：早饭、午饭、晚饭和夜餐。下面是所有已知的关于他们在这一天中所吃食物的信息：(1)在同一顿饭中，V和W吃不同的食物；(2)在这一天中，每一种食物每个人最多只吃一次；(3)早饭每一个人恰好吃下面三种食物中的某一种：H、P、O：(4)午饭每一个人恰好吃下面四种食物中的某一种：F、lH、M、O：(5)晚饭每一个人恰好吃下面四种食物中的某一种：F、H、M、O：(6)夜餐每个人恰好吃下面两种食物中的一种：F和O：(7)W午饭吃O。

若w在周二不吃M，则下面哪一句话可能正确

A．V早饭吃了P。

B．V中饭吃了F。

C．V中饭吃了H。

D．W早饭吃了H。

Thousands of people living in the Chinese capital will celebrate the start of the Chinese New year by heading for the ski resorts (滑雪场). Never mind that Beijing’s dry weather seldom produces snow. It is cold enough in winter for snow-making machines to make a covering for the hills north to the capital. And the rapid growth of a pleasure-seeking middle class has formed the basis for this new craze(热潮).     

Since Beijing’s first ski resort was opened ten years ago, the sport has enjoyed astonishing increase. There are now more than a dozen resorts. Clothes markets in the city have added bright colored ski suits to their winter collections. Mr. Wei, a manager of a newly-opened ski resort in Beijing, sees the growth of an industry that could soon lead Chinese to head for the ski resorts of Europe. In recent years, ski resorts offering natural snow have opened in China. But many are in faraway areas of the country and can’t really match the equipment and services of some ski resorts in Europe.

Beijing’s skiing craze is partly a result of the recent increase in private (私有的) cars. This has led to the growth of a leisure industry in the capital’s suburbs (郊区), which until the late-1990s were unreachable to ordinary people. According to Mr. Wei, about 40% of the visitors to his resort come in their own cars. The rest are bused in by schools, businesses or government offices.  

The problem is making money. Starting ski resorts requires quite a lot of money; hiring land from the local government, preparing the hills, buying snow machines, making sure there are enough water and electricity to run them, and buying ski equipment for hiring out to customers.

The ski resort where Mr. Wei works cost nearly $4 million to set up. And as so often in China when someone comes up with a good idea, many others rush in and price wars break out. Beijing now offers some of the cheapest ski training classes in the world, though with most people rather new to the sport, expecting a few more doing the same job.

小题1:What does this text mainly talk about?

A．Convenience for skiers brought about by private cars.

B．Skiing as a new way of enjoying one's spare time.

C．Things to be considered when starting a ski resort.

D．A sudden increase of ski training classes in Beijing.小题2:Why are some Chinese likely to go skiing in Europe?

A．To visit more ski areas.

B．To ski on natural snow.

C．For a large collection of ski suits.

D．For better services and equipment.小题3:The underlined words “leisure industry” in Paragraph 3 refer to         

A．transport to ski resorts

B．production of family cars

C．business of providing spare time enjoyments

D．part-time work for people living in the suburbs小题4:What is the main problem in running a ski resort?

A．Difficulty in hiring land．

B．Lack of business experience．

C．Price wars with other ski resorts

D．Shortage of water and electricity.

(8分).处理含CO、SO₂烟道气污染的一种方法，是将其在催化剂作用下转化为单质S(g)。发生反应为：

(1)已知：CO(g)+O₂(g)=CO₂(g) △H=-283.0kJ·mol^—1

S(g)+O₂(g)=SO₂(g) △H=" -" 296.0 kJ·mol^—1

试写出利用上述方法处理烟道气的热化学方程式                   

(2)在容积为2L的密闭容器中，充入4molCO和2molSO₂，在一定条件下发生反应2CO(g)+SO₂(g)S(g)+2CO₂(g)，CO₂的物质的量分数随时间的变化如图所示，则：

①0-2min内的平均反应速率v(CO)=         。

②该温度下，上述反应的平衡常数K=          (填数值)。

③2min后改变下列条件能使上述反应的反应速率增大，且平衡向正向移动的是       

a.选用更高效的催化剂  b.升高温度  c.及时分离出二氧化碳  d.增加SO₂的浓度

粗车时，使蜗杆牙形基本成型；精车时，保证齿形螺距和( )尺寸。

A．角度

B．外径

C．公差

D．法向齿厚

政协每届任期几年？什么情况下可延长任期？