问题 阅读理解

根据短文内容,从下面A—F选项中选出能概括每一段主题的最佳选。选项中有一项为多余选项。)此题答案写在二卷

A.Start early

B.Set up a side business

C.Build your network

D.Predict what will happen in the futureE. Expand your knowledge

F. Be willing to spend your time and money

61._______

Who doesn’t want to have a good future? It’s something everyone desires. The one who determines whether or not you have a good future is you. Don’t wait until something bad happens. Don’t wait until you lose your job. It is you who must take action. Start now while the situation is still good. Why? Because it takes time to build something. Let’s say you want to build an alternative income stream that you can rely on. You can’t build that overnight. Doing that takes time and persistence. If you don’t start early, it might not have been ready by the time you need it.

62. _______

It could be difficult to spend your time and money on something that doesn’t give you immediate return. But it’s important that you do that and it is one of the best ways to prepare yourself for the future. Those who are wise always spare some time and money in advance to invest in their future. If you don’t, your progress will be slow and you wouldn’t be ready in time.

63._________

I’m sure you’ve heard the advice “ Don’t put all your eggs in one basket.” It’s good advice, but how can you apply if you know only one basket? By expanding your knowledge, you will know what possibilities there are so that you can find new opportunities. Expanding your knowledge can also help you see something you already know in a different light. You can see it from a new perspective. Overall, expanding your knowledge improves your ability to make good decisions.

64. _______

Building a side business is one of the best ways to invest in your future. In fact, it’s a favorite of mine. Not only can it help you prepare for unexpected job loss and provide you with an alternative income source, but also it teaches you a lot in the process. You will learn much because you deal with the real world.

65. ________

Your network of friends and acquaintances is one of the best assets (资产) you could have. It can inform you of new opportunities. It can also help you find the resources you need. By building your network, you are preparing for a time in the future when you might need help from it. But build your network with right motivation. Don’t build it with the motivation to get something from it.

答案

小题1:A

小题2:F

小题3:E

小题4:B

小题5:C

题目分析:小题1:A 根据本段第三行Start now while the situation is still good.说明是号召我们早点行动起来。A符合本段大意。

小题2:F 根据本段1,2行It could be difficult to spend your time and money on something that doesn’t give you immediate return. But it’s important that you do that说明花时间和金钱虽然很困难,但是却很重要也很有效,故F符合本段中心思想。

小题3:E 根据本段2,3行By expanding your knowledge, you will know what possibilities there are说明要拓宽我们的知识面,我们才可以知道有什么样的机会。

小题4:B 根据本段主题句第一句Building a side business is one of the best ways to invest in your future.说明B和段意相符,故B符合要求。

小题5:C 本段讨论的是有很一个很好的朋友网络的重要性,故C与中心思想相符。

点评:本文重点考查考生对于段落大意的把握和理解能力。

填空题

 “低碳循环”引起各国的高度重视,而如何降低大气中CO2的含量及有效地开发利用CO2,引起了全世界的普遍重视。所以“低碳经济”正成为科学家研究的主要课题

(1)用电弧法合成的储氢纳米碳管常伴有大量的碳纳米颗粒(杂质),这种颗粒可用如下氧化法提纯,请完成该反应的化学方程式:

___ C+ ___ KMnO4+ ____ H2SO4→____CO2↑+ ____MnSO4 + ____K2SO4+ ____H2O  

(2)将不同量的CO(g)和H2O(g)分别通入到体积为2L的恒容密闭容器中,进行反应

CO(g)+H2O(g)CO2(g)+H2(g),得到如下三组数据

①实验1条件下平衡常数K=________(取小数二位,下同)。

②实验3中,若平衡时,CO的转化率大于水蒸气,则a/b 的值_______(填具体值或取值范围)。

③实验4,若900℃时,在此容器中加入10molCO,5molH2O,2molCO2,5molH2,则此时

V______V(填“<、>、=”)。

(3)已知在常温常压下:

① 2CH3OH(l) + 3O2(g) = 2CO2(g) + 4H2O(g)   ΔH = -1275.6 kJ/mol

② 2CO(g)+ O2(g) = 2CO2(g)   ΔH = -566.0 kJ/mol

③ H2O(g) = H2O(l)   ΔH = -44.0 kJ/mol

写出甲醇不完全燃烧生成一氧化碳和液态水的热化学方程式:___________________

(4)最近有科学家提出构想:把空气吹入碳酸钾溶液,然后再把CO2从溶液中提取出来,经化学反应后使之变为可再生燃料甲醇。该构想技术流程如下:

向分解池中通入高温水蒸气的作用是_______________________________     

(5)CO2在自然界循环时可与CaCO3反应,CaCO3是一种难溶物质,其Ksp=2.8×10-9

CaCl2溶液与Na2CO3溶液混合可形成CaCO3沉淀,现将等体积的CaCl2溶液与Na2CO3溶液混合,若Na2CO3溶液的浓度为2×10-4mo1/L ,则生成沉淀所需CaCl2溶液的最小浓度为________________ 。

单项选择题