题目内容
For almost forty years the Empire State Building in New York City Was the world’s tallest skyscraper (摩天大楼)．The building reaches a height of 1,250 feet．It has 102 floors．The use of steel frames made its height possible．Steel walls can rise high without needing to be thick．Steel frame construction is strong．All plates are fixed firmly together by metal bolts (螺栓) called rivets (铆钉)．When set in place, rivets are usually red-hot．One end is already rounded．A riveter uses a special hammer to shape the other end．Then the rivet cools．It holds the plates firmly．The word “plates” in this article might mean
A.盘子
B.金属板
C.横木板
D.铜牌
提示：
| 根据全文推断应该是建筑中用到的金属版
|
名牌学校分层周周测系列答案
黄冈海淀全程培优测试卷系列答案Adults usually do not remember most of the things that are taught by their teachers at school. But this story is one such lesson that I will never forget. Every time I drift off course, I think of this story.
It was a normal Monday morning, and my teacher was teaching us on important things in life and about devoting ourselves to what is important to us. This is how the story went:
An old man lived in a certain part of London, and he would wake up every morning and go to the subway. He would get onto the train right to Central London, and then sit at the street corner and beg. He would do this every single day of his life. He sat at the same street corner and begged for almost 20 years.
His house was dirty, and a stench (恶臭) came out of the house and it smelled terrible. The neighbors could not stand the smell any more, so they called for the police officers to clear the place. The officers knocked down the door and cleaned the house. There were small bags of money all over the house that he had collected over the years.
The police counted the money, and they soon realized that the old man was a millionaire (百万富翁). They waited outside his house expecting to share the good news with him. When the old man arrived home that evening, one of the officers told him that there was no need for him to beg any more as he was a rich man now, a millionaire.
But the old man said nothing at all; he went into his house and locked the door. The next morning he woke up as usual, went to the subway, sat at the street corner and continued to beg.
Clearly, this old man had no great plans, dreams or anything significant (有意义的) for his life. We learn nothing from this story other than staying focused on the things we enjoy doing.
【小题1】The neighbor called the police because ______.
| A．the old man kept begging money from them every day |
| B．there was something dangerous in the old man’s house |
| C．the old man wouldn’t buy tickets for the train |
| D．they couldn’t bear the smell from the old man’s house |
| A．remained calm | B．became excited |
| C．felt worried | D．became nervous |
| A．Make great plans for your life. |
| B．Keep on doing what you like. |
| C．Do something that is good to society. |
| D．Depend on yourself rather than others. |
Rising levels of carbon dioxide in the atmosphere are a major cause of climate change, and now a new study has 
confirmed that atmospheric CO2 is also affecting the ocean chemistry and potentially harming sea life.
Montana State University scientist Robert Dore has been researching the water in the Pacific Ocean for almost two decades.
"We've been going to the same spot in the Pacific Ocean, and we try and characterize long-term change in the open ocean environment. And one of the key things that we measure is CO2 levels. And we've been able to record this increasing quantity of atmospheric CO2 into the ocean."
Scientists expected that as atmospheric CO2 increased, more and more of the carbon dioxide would be absorbed into the ocean, affecting the chemical balance of the sea water, with a potentially harmful impact on shellfish and coral in particular.
"As carbon dioxide dissolves（溶解） in the water, or seawater in this case, it forms a weak acid, carbonic acid," Dore explains. "And therefore, as the concentration of CO2 in the atmosphere goes up and that exchanges with the surface seawater, it drives the pH down, and makes it more acidic."
The seawater Dore and his colleagues have analyzed confirms what the theory predicts.
The effect was particular striking at about 250 meters down, and again at 500 meters. Dore and his colleagues came up with two possible explanations. It could be that surface water picked up CO2 and then moved to those depths. Or there could be a biological explanation.
"It's important to realize that the oceans are really b
ecoming acidic. And it can have negative impacts on a whole variety of sea life from fish to coral. It's potentially catastrophic."
53．What can be the best title of the passage?
A．Sea Life Facing Danger B．Scientist Researching Seawater
C．Oceans Becoming More Acidic D．Climate Change Affecting Seawater
54．Which of the following shows the process of the impact of atmospheric CO2 on sea life?
a．Sea life is endangered．
b．CO2 
goes into the surface water．
c．The ocean chemistry is affected．
d．CO2decreases the PH and makes the seawater more acidic．
|
|
55．Scientist Robert Dore came to the conclusion based on .
A．his research and analysis
B．the expectation of other scientists
C．some former theory
D．a major cause of climate change
56．What does the passage want to tell us most?
A．It takes time to make a scientific study．
B．Atmospheric C
O2 is doing harm to sea life．C．Robert Dore is a committed and serious scientist．
D．Measures should be taken to prevent the potential catastrophe．