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【解析】(1)电容器放电时，电流由上极板流出，从下极板流入，故流过电阻R的电流方向为从右向左。(2)I一t图像与坐标轴围成的面积表示该过程通过的电荷量，由乙图可得图线与坐标轴围成的面积约为39格，则电容器在放电过程中释放的总电荷量约为Q=39×0.2mA×0.4s≈3.1×10-3C。3.1X10-3(3)直流电源输出电压U=IR=6V,该电容器的电容C=F≈5.2X10-4F。6(4)在充电过程中，电容器两板的电势差与电源电压越来越接近，充电电流逐渐减小，在放电过程中，电容器两板的电势差逐渐减小，放电电流逐渐减小，而q一t图像的斜率表示电流大小，A项正确、B项错误；因为q=CU,而电容C不变，则U随时间变化的图像与q随时间变化的图像形状相似，C项错误、D项正确。
There once was a master who went to India. In those times, we didn’t have the communications or airplanes or many kinds of transportation that we do now. So the master went to India on foot. He had never been to India before; perhaps he came from Persia. And when he got there, he saw a lot of fruit. In India they have plenty of fruit to sell, but much of it is expensive because they can’t grow much due to the water situation. So he saw one basket, a big basket of some very red, long fruit. And it was the cheapest in the shop, not expensive at all.
So he went up and asked, “How much per kilo?” And the shopkeeper said, “Two rupees（卢比）.” Two rupees in India is nothing; it’s like dirt. So he bought a whole kilogram of the fruit and started eating it. But after he ate some of it: Oh, my God! His eyes watered, his mouth watered and burned, his eyes were burning, his head was burning and his face became red. As he coughed and choked and gasped for breath, he jumped up and down, saying, “Ah! Ah! Ah!”But he still continued to eat the fruit! Some people who were looking at him shook their heads and said, “You’re crazy, man. Those are chilies（辣椒）! You can’t eat so many; they’re not good for you! People use them as a condiment（作料）, but only a little bit to put into food for taste. You can’t just eat them by the handful like that; they’re not fruit!” So the stupid master said, “No, I can’t stop! I paid money for them, and now I’ll eat them. It’s my money!”
And you think that master was stupid, right? Similarly, we sometimes do a lot of things like that. We invest money, time or effort in a relationship, business or job. And even though it’s been a long time, bitter experience tells us it won’t work, and we know there’s no more hope that things will change in the future — this we definitely know by intuition（直觉） — we still continue just because we’ve invested money, time, effort and love into it. Just like the man who ate the chilies and suffered so much but couldn’t stop because he didn’t want to waste the money he’d paid.
1.Why did the master buy a lot of chilies?
A．He loved the taste of chilies very much.
B．He spent a lot of money on chilies.
C．The price of chilies is very low.
D．The quality of Indian chilies is very good.
2.What can we infer about the master according to the passage?
A．He is very wise in spending his money.
B．He came from Persia with someone else.
C．He walked to India for the first time.
D．He is a very rich and honest man.
3.What is the purpose of the passage?
A．To share us a funny story about a silly master.
B．To tell us when to give up in life.
C．To offer some information about India.
D．To remind us how to spend money wisely.
试题答案
1.C
2.C
3.B
【解析】
试题分析：本文讲述一个男人走去印度，在印度买了最便宜的整整一公斤的水果，结果是辣椒，但他仍然继续吃因为不想浪费他花的钱的故事，告诉我们要懂得适时放弃的道理。
1.Two rupees in India is nothing; it’s like dirt. So he bought a whole kilogram of the fruit在印度两卢布什么也不是，因此他买了整整一公斤这种水果，可知因为辣椒价格低，他才买这么多，故选C
2.So the master went to India on foot. He had never been to India before大师是走去印度的，之前从没去过印度，可知他第一次是走去印度的，故选C
3.Just like the man who ate the chilies and suffered so much but couldn’t stop because he didn’t want to waste the money he’d paid.就像吃辣椒的男人一样，忍受如此多的痛苦但不能停止，因为他不想浪费他花的钱，可知作者是想告诉我们要懂得适时放弃，故选B
考点：考查故事类阅读
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