问题 多选题

下图是实验用的锥形瓶,将锥形瓶放在面积为S的水平桌面上,已知锥形瓶的质量为m1、底面积为S1;当往锥形瓶中倒人密度为ρ、质量为m2的液体后,液面高度为h,则

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A、锥形瓶中的液体重为ρgS1h

B、液体对锥形瓶底的压强为ρgh

C、瓶底对水平桌面的压力为(m1+m2)g

D、瓶底对水平桌而的压强为(m1+m2)g/s

答案

BC

完形填空

Directions: Read the following passage.  Answer the. questions according to the information given in the passage.

As an English teacher. I've been lucky enough to travel to many countries. I've seen people celebrating everything from the arrival of new babies to the delivery of new cars. I've attended weddings, parties and religious celebrations in countries as far apart as Argentina and Japan, and I've noticed that gold - the metal or the colour is almost always part of cultural events, traditions and celebrations.

From  'mashallah'  gold tokens(纪念品)  that people give to babies in Turkey,  to the gold stars that primary teachers stick on their students' exercise books. to the gold coffin that the 'King of Pop' Michael Jackson was buried in. it makes me wonder: Why do people love gold?

For some people, gold seems to be a status symbol. Indian businessman Datta Phuge loves gold so much that he's even bought a shirt made of the stuff-at a cost of $ 250,000. Datta Phuge has his reasons.   He explains :  "Some elite (杰出人物)people want to own an Audi or Mercedes(奔驰) and have big cars. I chose gold. "

For other people, gold is an investment.  The price of gold generally increases over time-and in European markets it reached over $ 1,500 per ounce in 2011.

And for many people, the family heirloom(传 * * )brings together status and investment. My mother has a gold bracelet that was given to her by her grandmother-who, in turn. inherited it from her own grandmother.   It's quite a heavy piece and probably worth quite a lot of money.  But its sentimental value is greater than its value in dollars:  It ' s a beautiful object that holds many family memories. When the time comes, my mum will give the bracelet to me.

So, status and investment are good reasons to value gold. But, I think that the real reason people love gold is because it can be made into beautiful objects.  Think about Tutankhamen' s death mask. People love gold because it captures our minds, our imaginations and. above all, our hearts.

小题1: What did the writer observe while travelling in different countries7  ( No more than 15 words)

(2 marks)

小题2:Why did Indian businessman Datta Phuge buy a gold shirt? (No more than 7 words) (3 marks)

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小题3:What does the writer think of her mother's gold bracelet? (No more than 7 words) (2 marks)

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小题4: In the writer's opinion, why do people love gold? (No more than 17 words) (3 marks)

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单项选择题