题目
题型：不详难度：来源：
“The importance of the research is not at question here. It is important to our understanding of and adapting to climate change. But we need to think about better approaches,” says Brook.
“This is an issue for all scientists, though polar researchers often travel particularly long distances using commercial air travel. We also rely extensively on small aircraft, icebreakers, and snowmobiles, all of which produce large amounts of carbon.”
Brook studies the health of caribou herds in Nunavut and Northwest Territories. He works with northern wildlife managers. This work typically takes him north five or six times per year and when he calculated his own carbon footprint, he was not happy with the result.
“My research footprints are about the same as the annual footprints of an average Toronto resident. Basically, I have two footprints — my own personal life, which is moderate, and my research footprint.”
Climate scientists can rightly argue that Arctic research is a specialized field and the community of scientists who travel north is relatively small. Even if all scientists working in the north reduced their carbon emissions, it would not make a big impact on the global scale. For Brook, it’s the option that matters.
There are ways researchers can reduce the amount of carbon they use. Some helicopters use less fuel than others. Solar and wind power are alternatives to gas-fired generators. And while carbon offsets(抵消) don’t reduce the amount of carbon emitted, they are an easy first step.
“There aren’t necessarily any easy answers, but we need to start talking about it,” says Brook. “This is particularly important for the next generation of scientists being trained and I hope to see them become leaders in this issue.”
小题1:What did Brook find when he calculated his own carbon footprints?
| A．His carbon footprints are more than the annual footprints of a Toronto resident. |
| B．His personal life footprints are more than the annual footprints of a Toronto resident. |
| C．His research footprints are about the same as his personal life footprints. |
| D．His personal life footprints are more than his research footprints. |
| A．arctic research is very important |
| B．the Arctic is a special environment |
| C．the footprints of Arctic scientists are small |
| D．Brook’s situation is a common phenomenon |
| A．we should take actions immediately instead of just talking |
| B．it’s easy to start talking about the problem of carbon emissions |
| C．it’s necessary now to pay attention to the problem of research footprints |
| D．the next generation of scientists are more interested in research footprints |
| A．The importance of arctic research is not at question. |
| B．Climate change becomes worse because of arctic research. |
| C．Brook suggests ways of reducing the use of carbon. |
| D．Scientists must look at their own carbon footprints. |
答案
小题1:A
小题1:C
小题1:C
小题1:D
解析
核心考点
试题【Scientists studying the impact of climate change on the Arctic need to consider 】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
The year is 2094. It has been announced that a comet is heading towards the Earth. Most of it will miss our planet, but two fragments will probably hit the southern part of the Earth. The news has caused panic.
On 17 July, a fragment four kilometers wide enters the Earth’s atmosphere with a huge explosion. About half of the fragment is destroyed. But the major part survives and hits the South Atlantic at 200 times the speed of sound. The sea boils and an enormous wave is created and spreads. The wall of water rushes towards southern Africa at 800 kilometers an hour. Cities on the African coast are totally destroyed and millions of people are drowned. The wave moves into the Indian Ocean and heads towards Asia.
Millions of people are already dead in the southern part of the Earth, but the north won’t escape for long. Tons of broken pieces are thrown into the atmosphere by the explosions. As the sun is hidden by clouds of dust, temperatures around the world fall to almost zero. Crops are ruined. Wars break out as countries fight for food. A year later civilization has collapsed. No more than 10 million people have survived.
Could it really happen? In fact, it has already happened more than once in the history of the Earth. The dinosaurs（恐龙）were on the Earth for over 160 million years. Then 65 million years ago they suddenly disappeared. Many scientists believe that the Earth was hit by a space fragment. The dinosaurs couldn’t survive in the cold climate that followed and they became extinct. Will we meet the same end?
小题1: Which of the following is NOT TRUE according to the author’s description of the disaster in 2094?
The whole mankind becomes extinct.
All the coastal cities in African are destroyed.
The whole world becomes extremely cold.
The visit of the comet results in wars.
小题2:Why does the author mention dinosaurs at the end of the passage?
| A．Because they could only live in the warm climate. |
| B．Because they once dominated the Earth. |
| C．Because dinosaurs and humans never live in the same age. |
| D．Because their extinction indicates future disasters |
| A．give an accurate description of the possible disaster in the future |
| B．warn of a possible disaster in the future |
| C．tell the historical development of the Earth |
| D．prove that humans will sooner or later be destroyed |
| A．horror story | B．news report |
| C．article of popular science | D．research paper |
Fish have ears. Really. They’re quite small and have no opening to the outside world carrying sound through the body. For the past seven years, Simon Thorrold, a university professor, has been examining fish ears, small round ear bones called otoliths (耳石).
As fish grow, so do their otoliths. Each day, their otoliths gain a ring of calcium carbonate (碳酸钙). By looking through a microscope and counting these rings, Thorrold can determine the exact age of a young fish. As a fish gets older, its otoliths no longer get daily rings. Instead, they get yearly rings, which can also be counted, giving information about the fish’s age, just like the growth rings of a tree.
Ring counting is nothing new to fish scientists. But Thorrold has turned to a new direction. They’re examining the chemical elements (元素) of each otolith ring.
The daily ring gives us the time, but chemistry tells us about the environment in which the fish swam on any given day. These elements tell us about the chemistry of the water that the fish was in. It also says something about water temperature, which determines how much of these elements will gather within each otolith ring.
Thorrold can tell, for example, if a fish spent time in the open ocean before entering the less salty water of coastal areas. He can basically tell where fish are spending their time at any given stage of history.
In the case of the Atlantic croaker, a popular saltwater food fish, Thorrold and his assistant have successfully followed the travelling of young fish from mid-ocean to the coast, a journey of many hundreds of miles.
This is important to managers in the fish industry, who know nearly nothing about the whereabouts of the young fish for most food fish in the ocean. Eager to learn about his technology, fish scientists are now lending Thorrold their ears.
小题1:What can we learn about fish ears from the text?
| A．They are small soft rings. |
| B．They are not seen from the outside. |
| C．They are openings only on food fish. |
| D．They are not used to receive sound. |
| A．Trees gain a growth ring each day. |
| B．Trees also have otoliths. |
| C．Their growth rings are very small. |
| D．They both have growth rings. |
| A．The elements of the otoliths can tell the history of the sea. |
| B．Chemical contents of otoliths can tell how fast fish can swim. |
| C．We can know more about fish and their living environment. |
| D．Scientists can know exactly how old a fish is. |
| A．They are very interested in Thorrold’s research findings. |
| B．They want to know where they can find fish. |
| C．They lend their fish for chemical studies. |
| D．They wonder if Thorrold can find growth rings from their ears. |
Lenny had always thought of himself as a 39 person. He got worried before examinations. He worried about his job and health. All he wanted in life was to be safe and healthy. Then on January 15th, 2002, a plane crashed into the Potomac River in Washington. Lenny happened to see a woman in the ice-cold water. He did not feel afraid. He 40 very calm and did a very dangerous thing. He jumped into the Potomac, 41 to the woman, and kept her head 42 the water. Seventy-eight people died that day. Thanks to Lenny, it was not 43 .
When you are in a very dangerous situation and feel afraid, the body automatically(自动地) produces a chemical called adrenalin in the blood. With adrenalin in the blood system, you actually feel stronger and stronger and are 44 to fight or run away. However, when you are terrified greatly, the body can produce too much adrenalin. 45 this happens, the muscles become very hard. You are then paralyzed (麻木) with fear. This is why when we are extremely frightened, we sometimes say we are “petrified”. This word 46 a Greek word “petros”, which means “stone”. We are 47 frightened that we become stonelike.
| 小题1: |
|
| 小题2: |
|
| 小题3: |
|
| 小题4: |
|
| 小题5: |
|
| 小题6: |
|
| 小题7: |
|
| 小题8: |
|
| 小题9: |
|
| 小题10: |
|
| 小题11: |
|
| 小题12: |
|
She poured tea. There were four of them and there were four totally different cups on the table.
They took their tea cups.
“What quote?” Mary asked.
“Well, maybe I should rather say it is a story,” aunt said, “I heard that there was a wise teacher who took all his students for tea. They were surprised that all the cups on the table were different. Each of them took a cup and started drinking their tea, each looking at the cups of others. The teacher let them do that for a while and then said,‘ Do you notice your behavior? You are all looking at each other’s tea cup and I can see some of you with the broken ones are even envious(羡慕的) of the finer cups of others. Is this not so?’ ”
The students agreed, amused by their own behavior.
“You may have wondered why you all had different cups, but I put them here on purpose. You see they represent (代表) life itself. Life is like that tea and the cups are like the physical circumstances(状况) of your life. You all got the same thing in your cups — tea. And yet you can not truly enjoy it in your envy of another’s cup. It’s just the same with life. You forget to enjoy your own life when you concentrate on envying the circumstances of someone else’s life.
So now, close your eyes, and taste your own tea. Really taste it. And tell me — did it matter from which cup it came from?”
Aunt finished telling her short tea story and they all sat in silence for a while, tasting their tea. A sleepy fly buzzed(嗡嗡作响) past, a bird sang in the tree. And it really did not matter one bit from which tea cup they drank.
小题1: When the students found they had different tea cups, they_____________.
| A．were satisfied with their own cup |
| B．were angry about the broken cups they had been given |
| C．asked the teacher to get new cups for them |
| D．were curious about the difference between the cups |
| A．the teacher prepared different tea cups for each student |
| B．the teacher should have given the students the same cups |
| C．the teacher made the tea cups different by mistake. |
| D．each student took their time to choose a cup they liked |
| A．should try different ways of life |
| B．shouldn’t focus on envy others’ physical circumstances |
| C．can never change their physical circumstances |
| D．should work hard for a better life |
| A．life is hard and boring for everyone |
| B．it is strange to be envious of the lives of others |
| C．everyone should learn to enjoy his own life |
| D．people act differently in different circumstances |
| A．More than tea in a cup | B．The value of tea |
| C．Tea vs cup | D．Enjoying tea with a broken cup |
These printed things 38 newspapers but have hardly anything to do with 39 . You can only find reading materials badly made up there---some are too strange for anyone to 40 , others are frightening stories of something 41 .However, many of the young readers are getting interested in such 42 reading, which 43 them what they should pay for their breakfast and brings them nightmares（噩梦）and immoral（邪恶）ideas in 44 . Homework is left 45 , and daily games are lost.
These sellers shout on streets selling their papers well. The writers, publishers and printers, 46 they are, we never know, are 47 their silent money.
The sheep-skinned wolf’s story seems to have been forgotten once again .Why not 48 this kind of thing? Yes, both teachers and parents have asked each other for more strict control of the young readers. 49 ,the more you want to forbid it, the more they want to have a look at it. 50 you may even find several children, driven by the curious natures, 51 one patched paper, which has travelled from hand to hand.
It really does 52 to our society. It has already formed a sort of moral pollution. The 53 teachers and parents need more powerful support in their protection of the young generation. At the same time the young 54 need more interesting books to help them 55 those ugly papers.
| 小题1: |
|
| 小题2: |
|
| 小题3: |
|
| 小题4: |
|
| 小题5: |
|
| 小题6: |
|
| 小题7: |
|
| 小题8: |
|
| 小题9: |
|
| 小题10: |
|
| 小题11: |
|
| 小题12: |
|
| 小题13: |
|
| 小题14: |
|
| 小题15: |
|
| 小题16: |
|
| 小题17: |
|
| 小题18: |
|
| 小题19: |
|
| 小题20: |
|
最新试题
- 1进行种群密度的取样调查时，宜采用的做法是：[ ]A．选取多种植物为调查对象B．必须要逐一计数某个种群的个体总数C
- 2已知直线ax-by-2=0与曲线y=x3-lnx在点p（1，1）处的切线互相垂直，则ab为______．
- 3亚硒酸钠(Na2SeO3)中，硒元素（Se）的化合价为 A．+1B．+2 C．+4 D．+6
- 4从离地面80 m的空中自由落下一个小球，取g＝10 m/s2，求：(1)经过多长时间落到地面；(2)自开始下落时计时，在
- 5甲苯苯环上的氢原子被式量为43的烷基取代所得一元取代物有( ）A．3种B．4种C．5种D．6种
- 6下列运算，正确的是[ ]A.B.C.D.
- 7已知点P在椭圆x249+y224=1上，F1、F2是椭圆的焦点，且PF1⊥PF2，求（1）|PF1|•|PF2|（2）△
- 8（1）计算：2•(8-1)（2）解一元二次方程：x2-2x-3=0．
- 9近代列强在中国发动了一系列的侵略,归根结底是为了获取权益。在这一过程中，《马关条约》的特殊性比较明显，主要表现在A．割地
- 10读我国某地景观图，判断回答1~2题。1．该地最适宜种植[ ]A．甜菜B．苹果C．小麦D．水稻2．该地的耕地类型是
热门考点
- 1(2009·广东基础训练题一〈政治生活〉)2009年1月16日举行的中国宗教界和平委员会第二届委员会第六次会议指出，要努
- 2 关于近视镜片和远视镜片，下列说法中正确的是A．都是凸透镜B．近视镜片是凹透镜，远视镜片是凸透镜C．都是凹透镜D．近视镜
- 3当m＜0时，化简的结果是 。
- 4下列有关糖代谢及调节的叙述正确的是 [ ]A．胰岛素促进④、⑤、⑥等过程 B．胰岛B细胞分泌的激素促进①、③过程
- 5若x=-x有意义，则x+1=______．
- 6阅读理解 18 Feeling tired lately? Has a doctor
- 7双燃料汽车以天然气或汽油作为燃料，以下说法正确的是（ ） A．燃料的热值越大，燃烧时放出的热量越多B．以天然
- 8下列关于联合国的说法正确的是 [ ]A．联合国是凌驾于主权国家之上的国际组织 B．世界能否和平与发展，关键取决于
- 9阅读下面语段，按要求回答问题：下列句子中，没有语病的一句是()。A．代表历史系参加全校大学生运动会的队员，是由本系五百多
- 10如图1所示电路中，R是一个定值电阻，Rl是一个半导体材料制成的热敏电阻，其阻值随温度变化的曲线如图2所示，当开关闭合且电