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读图回答下列问题

（1）图中右下角区域是重要的优质棉花生产基地，简要分析优势的气候条件。

（2）图中河流②南北跨纬度约15°，河流的汛期主要出现在春季，且时间由南向北推迟，试分析原因。

（3）请利用地理环境整体性原理分析目前④湖泊水量和盐度的变化趋势。

答案

（1）优势条件：①夏季光热充足，有利于棉花生长 ②气温日较差大

（2）该河流流域冬季积雪量大，河流以积雪融水补给为主。春季气温回升，出现汛期。由于南北跨纬度大，南部纬度低，气温升高较快，积雪融化更早，最早出现汛期。河流北部地区纬度更高，气温上升慢，积雪后融化，汛期出现推迟。

（3）地理环境各要素相互联系、相互制约、相互渗透，组成一个地理环境的整体。由于湖泊和河流沿岸植被破坏严重，加上农业灌溉和居民用水增大，导致河流水量减少，从而使湖泊水量减少，盐度增高；同时全球气候变暖，蒸发量增大，盐度增加

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Learning to save money when you’re young is an i_______小题1: lesson. All good habits should begin early, and saving is a skill that everyone needs. But many people do not have a good sense of s______小题2: for the long run.

I have been lucky to learn this lesson early because I have had a grass-cutting business s_____小题3: I was 10 years old. Of the money I make I spend about 10 p_______小题4: and save the other 90%.

Making sure you save and don’t spend too much is a good way to build up wealth (财富). I have put my earnings in a bank. However, many teens I know usually s_______小题5: all the money they earn, so it never has a chance to grow. Young people should r_______小题6:that their teenage years are a great time to begin saving.

At high school your parents will p_______小题7: for almost everything you need, so your expenses (消费) can be small. If you have a job, you should have fun with some of the money. But you should also save some so that it will grow. Then you can begin planning for your f________小题8:. When you spend money, you not only lose that money, but also lose the interest you could have earned by saving it.

After high school, college is expensive and then “real” life begins, with expenses such as food and rent. If you can hold onto a good percentage of the money you earn as a teen, going to college and buying a new h_______小题9: of your own will be much easier. If you are in your teen without any savings, you will always have to struggle. The e_______小题10: you begin saving, the easier it is to create a nest egg.
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