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What kind of minerals can we find on the ocean floor？
A．Iron and copper.
B．Gold and copper.
C．Nickel and bronze.
D．Iron and bronze.
答案
更多“What kind of minerals can we find on the ocean floor？A．Iron and copper.B．Gold and copper.C”相关的问题
第1题
听力原文：M: Want to go out and get something to eat？
W: I can't. I have a chemistry midterm on Monday and a German exam on Tuesday.
M: I have a geology exam Monday myself, but I think I'm ready for it.
W: What kind of exam is it going to be—multiple choice or essay？
M: Neither. The professor is going to give us a mineral sample and we have to identify it.
W: How do you do that？ I mean, a rock's a rock, isn't it？
M: Actually, there are a lot of tests you can perform. on minerals to help you figure out what they are. Probably the first tests I'll do are scratch tests. When you do a scratch test, you rub the sample on a known mineral to see if the unknown mineral scratches the known mineral or vice versa. That tells you the relative hardness of the sample.
W: What other tests will you do？
M: I'll probably do a streak test next. In that test, you rub an unknown mineral against a piece of china to see what color the streak is.
W: Why can't you just look at the mineral to see what color it is？
M: Well, you can, but sometimes a mineral has some other substance in it, and the substance can change its color. But a streak test shows the mineral's true color. Then there's always the specific gravity test, the blowpipe test...oh, and...
W: And after you've done all these tests, you can positively identify any mineral？
M: Well, usually...but not always. I just hope I can on Monday!
(20)
A．A multiple-choice exam.
B．A chemistry exam.
C．A German exam.
D．A geology exam.
第2题
W: What's the special today？
M: Leg of lamb, and 1 highly recommend it.
W: Well. Let me see. I think I'll have the special.
M: All right. As an appetizer, you have a choice of fruit salad or tomato juice.
W: Hmm. I think I'd like the fruit salad.
M: All right. And the soups we are offering today are split pea or French onion.
W: Split pea, please.
M: And what kind of dressing would you like on your salad, Italian, French, or Russian？
W: I'd prefer Italian.
M: Italian. Fine. Oh! I almost forgot. What would you like to drink with your meal？
W: A glass of mineral water.
M: All right. I'll put this order in right away. And I'll be back in a moment with some rolls and butter.
W: Thank you.
(20)
A．A guide.
B．A waiter.
C．A porter.
D．A cook.
第3题
From the context, it can be concluded that olivine must be ______.
A．a kind of volcanic soil containing lava and mineral rock
B．a kind of volcanic rock with its main content of lava and magnesium
C．a kind of rock mainly consisting of oxygen, iron and magnesium
D．a kind of oxygen with iron and magnesium
第4题
The scientists found what the isolated roots need is ______
A．quite natural
B．sugar, minerals and vitamins
C．some rare vitamins
D．organic nitrogen compounds
第5题
What is the reason for Dr. John Anderson to have bought the land？
A．The land was popular.
B．The previous owner offered a discounted rate.
C．He found mineral springs.
D．The government offered a tax incentive.
第6题
Section B
Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.
Passage One
Questions 57 to 61 are based on the following passage.
Reaching new peaks of popularity in North America is Iceberg Water, which is harvested from icebergs off the coast of Newfoundland, Canada.
Arthur von Wiesenberger, who carries the title Water Master, is one of the few water critics in North America. As a boy, he spent time in the larger cities of Italy, France and Switzerland, where bottled water is consumed daily. Even then, he kept a water journal, noting the brands he liked best. “My dog could tell the difference between bottled and tap water,” He says.
But is plain tap water all that bad？ Not at all. In fact, New York’s municipal water for more than a century was called the champagne of tap water and until recently considered among the best in the world in terms of both taste and purity. Similarly, a magazine in England found that tap water from the Thames River tasted better than several leading brands of bottled water that were 400 times more expensive.
Nevertheless, soft-drink companies view bottled water as the next battle-ground for market share—this despite the fact that over 25 percent of bottled water comes from tap water: PepsiCo’s Aquafina and Coca-Cola’s Dasani are both purified tap water rather than spring water.
As diners thirst for leading brands, bottlers and restaurateurs salivate (垂涎) over the profits. A restaurant’s typical mark-up on wine is 100 to 150 percent, whereas on bottled water it’s often 300 to 500 percent. But since water is much cheaper than wine, and many of the fancier brands aren’t available in stores, most diners don’t notice or care.
As a result, some restaurants are turning up the pressure to sell bottled water. According to an article in The Street Journal, some of the more shameless tactics include placing attractive bottles on the table for a visual sell, listing brands on the menu without prices, and pouring bottled water without even asking the diners if they want it.
Regardless of how it’s sold, the popularity of bottled water taps into our desire for better health, our wish to appear cultivated, and even a longing for lost purity.
注意：此部分试题请在答题卡2上作答。
57. What do we know about Iceberg Water from the passage？
A) It is a kind of iced water.
B) It is just plain tap water.
C) It is a kind of bottled water.
D) It is a kind of mineral water.
第7题
A few years later, thousands of miners were at work there. They rushed from all over the world to seek their fortunes. Most of the miners dreamed of finding one of the large stones, perhaps one like the famous Cullinan Diamond, which was found in 1905 and was as big as a man's fist. This great stone was cut into several small gems, some of which can now be seen amongst the Crown Jewels in the Tower of London.
The modem world, however, has found more important uses for its diamond than the making of jewellery. They have been put to work; for diamond is the hardest mineral foud in our earth. It can cut or polish the hardest steel or grind its way through solid rock. Only a diamond is hard enough to cut another diamond, and it is not the big stones which are needed for the drills, saws and grindingwheels. Only factories now demand the diamond dust which the early miners looked upon as useless.
Yet it is a strange fact that nature makes its hardest mineral from exactly the same sub- stance as one of its softest. This soft mineral is graphite, which is very easily broken up and is used to make the "lead" in your pencil. The name "lead" should not really be used, because graphite consists of nothing but carbon—just the same as a diamond.
What was the dream of the early miners.-
A．They wanted to get as much diamond as they could.
B．They wanted to make their fortunes.
C．They wanted to find a large diamond.
D．They wanted to find the Cullian Diamond.
第8题
What is the character of the first kind of the shoplifters？
A．Impulsive.
B．Poor.
C．Skillful at stealing.
D．Highly organized.
第9题
What kind of jobs are needed？
A．Milkman.
B．Waitress.
C．Shopkeeper.
第10题
What do you think "large corvines" probably are？
A．Another kind of bird.
B．Another kind of parrot.
C．Another kind of swans.
D．Other birds that convince us.
第11题
When they find out what kind of animal they have, they are shocked.
A．Right
B．Wrong
C．Not mentioned
