题目
题型：不详难度：来源：
This morning, a Virgin Atantin 747 Jumbo Jet became the first commercial airplane to fly on biofuel. The short flight from London to Amsterdam used a blend of 20% babassu(棕榈) oil mixed with 80% conventional jet fuel.
What was really exciting about the flight was the fact that the engine did not have to be altered in any way for the biofuel to work While this is a great initial step in trying to reduce CO2(carbon-dioxide)emissions(排放)from airplanes. there are a lot of hurdles (障碍)that still need to be overcome.
First and foremost, unlike the normal fuel used to run airplanes (known as Jet A),biofuel freezes at high altitudes. Also, Jet‘A’fuel burns consistently (at the same pace),which means it provides a safe and reliable fuel for long flights--engineers are not sure if biofuel will be able to do the same.
The biggest hurdle to a full biofuel switch is our ability to be able to grow enough crops that can be converted to biofuel. There are two concerns that scientists have in this matter – the first is that the land to grow the extra crops will come from clearing more of our forests and the second is that since it competes with what we eat, the price of food will go up.
However, Richard Branson of Virgin Airlines, envisions that if biofuel starts to replace oil on a greater basis, it will be manufactured from algae（藻类）produced in sewage treatment plants, not from food sources.
Birgin Airlines is not the only one trying to look for alternative fuel sources. Earlier this year, an Airbus A380 used another alternative fuel－a man-made mix of gas-to-liquid, in one of its four engines. The flight was tested by Rolls Royce (manufacturer of jet engines), in partnership with Shell (an oil company). Rolls Royce is also working with Air New Zealand on a similar project.
While a complete switch to alternative fuel may take years, it is very encouraging to see airlines, oil companies and airplane manufacturers all coming together to try to make it happen!
小题1:．Why does Virgin Airlines try to replace normal fuel with biofuel?
| A．To cut down the flight cost of the company. |
| B．To remove some hurdles for the biofuel to work. |
| C．To reduce CO2 emissions from airplanes. |
| D．To test plane engines on biofuel. |
A Biofuel cannot run for long flights.
B．Biofuel cannot work at high altitudes.
C．Man has not enough land to grow extra crops for biofuel.
D．It’s not easy for sewage treatment plants to manufacture biofuel.
小题3:．One of the hurdles to be overcome for a full biofuel switch is to .
| A．alter the engine for airplanes |
| B．make biofuel burn consistently |
| C．open more land to grow more crops |
| D．develop sewage treatment plants |
| A．there is a long way to go for a complete switch to alternative fuel |
| B．it won’t be long before alternative fuel comes into use |
| C．airlines, oil companies and airplane manufacturers are reliable |
| D．alternative fuel has a bright future |
| A．Biofuel-Alternative Fuel Sources. |
| B．The First Commercial Flight Powered by Biofuel. |
| C．How to Reduce CO2 Emissions from Airplanes. |
| D．Vigin Airlines Trying to Alter Fuel Sources. |
答案
小题1:C
小题2:D
小题3:B
小题4:A
小题5:B
解析
试题分析：
小题1:C 细节题。由While this is a great initial step in trying to reduce CO2(carbon-dioxide)emissions(排放)from airplanes.可知C正确
小题2:D 细节题。由第三段可知，D项不正确。
小题3:B 细节题。由二，三两段可知，B项“使生物燃料持续燃烧”正确。
小题4:A 推断题。由最后一段可推出依然有很长一段路如果要让生物燃料替代其他能源。故选A
小题5:B 文章理解题。本文主要讲述了生物燃料的第一次应用与商业飞行。故选B
点评：文章主要讲了生物燃料的一次应用及相关待解决的问题。本文的难点在于科普类文章的词汇障碍，考生要学会从上下文的串联中去猜测词义或者利用构词法的知识来猜测具体的词义。也是以细节题的考查为主，推断题测试考生在阅读基础上的逻辑推理能力，要求考生根据文章所述事件的逻辑关系，对未说明的趋势或结局作出合理的推断；或根据作者所阐述的观点理论，对文章未涉及的现象、事例给以解释。考生首先要仔细阅读短文，完整了解信息，准确把握作者观点。
核心考点
试题【This morning, a Virgin Atantin 747 Jumbo Jet became the first commercial airplan】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
Let children learn to judge their own work. A child who learns to talk does not learn by being corrected all the time. If corrected too much., he will stop talking. He notices a thousand times a day the differences between the language he uses and the language those around him. Little by little, he makes the necessary changes to make his language like other people’s. In the same way, children learn to do all the other things without being taught-to walk, run, climb, whistle, ride a bicycle-compare their performances with those of more skilled people, and slowly make the needed changes.
But in school we never give a child a chance to find out his mistakes and correct them himself. We do it all for his act as if we thought that he would never notice a mistake unless it was pointed out to him, or correct it unless he was made to. Let him work out, with the help of other children if he wants it, what this word says , what the answer is to that problem, whether this is a good way of saying or doing this or not.
If it is a matter of right answers, as it may be in mathematics or science, give him the answer book. Let him correct his own papers. Why should we teachers waste time on such routine(daily) work? Our job should be to help the children when they tell us that they can’t find the way to get to measure their own understanding, how to know what they know or do not know.
小题1: According to the passage, the best way for children to learn things is by ______.
| A．listening to the advice of grown-ups. |
| B．asking adults many questions. |
| C．making mistakes and having them corrected. |
| D．doing as other people do by themselves. |
| A．Give children correct answers. |
| B．Allow children to make mistakes. |
| C．Tell the children what is wrong with their work as often as possible. |
| D．Let children judge their own work. |
| A．encourage children to learn from each other. |
| B．point out children’s mistakes whenever they are found. |
| C．correct children’s mistakes as much as possible. |
| D．teach children more knowledge from book. |
| A．different from learning other skills. | B．the same as learning other skills. |
| C．more important than other skills. | D．unnecessary skills. |
| A．Let Us Teachers Stop Working. | B．Let Children Alone. |
| C．Let Children Correct Their Exercises. | D．Let Children Learn by Themselves. |
Separate lives, similar dreams
As we know, some children live in the countryside, and some live in the city. Their lives are a little different, but they also have many of the same dreams.
| | In the countryside | In the city |
| Travel to school | On foot | By bus or car |
| Classroom facilities（设施） | Recorders and radios. | Multimedia classrooms, VCD, DVD, TVs, recorders, radios, loud-speakers. |
| Ways of learning | Classes only, without many reference books. | Many extra classes, tutor, lots of reference books. |
| Eyesight | Less than 45% are near-sighted. | About 75% are near-sighted. |
| After-class activities | Playing with balls. | English corners and other school clubs. |
| Homework | Homework can usually be finished at school. | Homework never ends. |
| Chores to do | Washing, cleaning, farming, looking after younger sisters or brothers, cooking. | Usually no chores. |
| Family members | Big families with three generations. | Small families with three members. |
| Ideal jobs | Teachers, drivers, scientists, nurses, secretaries. | Scientists, professors, doctors, computer programmers, managers, university presidents, the UN chief. |
| A．teachers. | B．students. | C．parents. | D．adults. |
| A．45%,75%. | B．55%,75%. | C．55%,25%. | D．45%,25%. |
| A．Ideal jobs. | B．After-class activities. |
| C．Ways of learning. | D．Results of tests. |
A. records. B. DVD. C. TVs. D. loud-speakers.
小题5: Which of the following is WRONG according to the survey?
| A．Children in the countryside often go to school on foot. |
| B．Children in the city often have too much homework to do. |
| C．Children in the countryside often have lots of chores to do. |
| D．Children in the city are difficult to find ideal jobs. |
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余项。
What is your favorite color? Do you like yellow, orange, and red? 71 Do you prefer grays and blues? Then you are probably quiet, shy, and you would rather follow than lead. You tend to be a pessimist（悲观者）. At least, this is what psychologists（心理专家） tell us, and they should know, because they have been seriously studying the meaning of colors preference, as well as the effect that colors have on human beings. 72 If you happen to love brown, you did so, as soon as you opened your eyes, or at least as soon as you could see clearly.
73 A yellow room makes most people feel more cheerful and more relaxed than a dark green one; and a red dress brings warmth and cheer to the saddest winter day. 74 A black bridge over the Thames River, near London, used to be the scene of more suicides than any other bridge in the area ---until it was repainted green. The number of suicide attempts immediately fell sharply; perhaps it would have fallen even more if the bridge had been done in pink or baby blue.
75 It is an established fact that factory workers work better, harder, and have fewer accidents when their machines are painted orange rather than black or grey.
| A．On the other hand, black is depressing. |
| B．They tells us that we do not choose our favorite color as we grow up——we are born with our preference. |
| C．The rooms are painted in different colors as you like. |
| D．If you do, you must be an optimist（乐观者）, a leader, an active person who enjoys |
E. Light and bright colors make people not only happier but more active.
F. Life is like a picture or a poem, full of different colors.
G. Colors do influence our moods——there is no doubt about it .
We live in a technological society where most goods are mass-produced by unskilled labor. Because of this, most people think that craft no longer exists.
One of the ways these people wrongly support their view is by pointing to 100-year-old homes which are still solid, and arguing that it is the craftsmanship that is responsible for their durability. “Homes in those days were well-built,” they say. No doubt these homes were well-built, but what these people have done is mix up the quality of material used in the house with the quality of the craftsmanship.
Homes today could be built to last just as long as those old homes if people were willing or able to pay the price. For example, most people can no longer afford solid oak stairways, although they were once fairly common in older homes. Nor can they afford the high labor cost of employing a carpenter to build the stairway. Yet if someone can pay the high cost, there are still plenty of carpenters around able to make those stairways. And not only would these carpenters know how to build them, they would probably do a better job than carpenters of old.
One thing the modern carpenter has which enables him to do a better job is much more advanced tools. Such tools as laser beams and powerplanes help them lay out a house better and make more precision cuts on the wood. Also, it is not uncommon say more to find carpenters with college degrees and carpenters with a solid knowledge of mathematics, which would enable them to deal with more difficult house designs.
The problem of modern quality, then, really boils down to the problem of material, for the modern carpenter is just as able to produce craftsmanship as the carpenter of fifty years ago, but only if given proper material.
小题1: Compared to the carpenters in the past, modern carpenters are .
| A．more successful | B．more learned |
| C．more imaginative | D．more hardworking |
| A．Carpenters who are fond of oak stairways. |
| B．Carpenters who have college degrees. |
| C．People who think highly of carpenters of old. |
| D．People who think that modern material is of low quality. |
| A．People in the past preferred to use oak to build stairways. |
| B．It is now expensive to employ a carpenter. |
| C．Modern houses last as long as the old ones. |
| D．Good carpenters still exist in modern times. |
| A．Is Craft Dead? | B．Craft, Back to Life? |
| C．History of Craftsmanship | D．Carpenters Today and Yesterday |
Don’t shoot butterflies with guns.
Can you 36 someone running after a butterfly with a gun in his hands? Won’t such stupidity make you burst out laughing? But wait. Stop and consider how often you might have done something 37 .
A hen, Henny-Penny, lived in a forest with many other animals and birds. One fine, sunny morning, she was busy looking for 38 in the ground. Suddenly she let out a frightened cackle (咯咯叫) with wings flapping 39 . A dry leaf had fallen down on her, and she went 40 at whoever she met, “Run, run for your lives; the sky is falling.” The other creatures stopped whatever they were doing. Some ran behind Henny-Penny, screaming warnings with her, while others 41 the unfounded story that the sky was falling.
We all have 42 people like this hen. The rest of us are like the other foolish creatures who didn’t stop to verify (证实) the 43 for themselves. They shoot butterflies with guns. They just will not think for themselves. Why don’t people think for themselves? Often because of laziness, or because they don’t want to be 44 for their way of thinking.
Walking through life 45 is more dangerous than crossing a busy road with eyes closed. Our thoughts should lead us towards the light of wisdom and sense. Our thinking should be high, 46 us to the ranks of the sensible. We have been blessed with reasoning, sensitive minds. Let us make use of them and be 47 of our own minds. Don’t let your mind be enslaved by someone else. Stop, think and then go ahead.
小题1:.
| A．suggest | B．imagine | C．recall | D．prevent |
| A．different | B．extraordinary | C．unusual | D．similar |
| 小题3: |
|
| A．in delight | B．in cheer | C．in fear | D．in amazement |
| A．screaming | B．staring | C．praising | D．criticizing |
| A．recite | B．edit | C．spread | D．print |
| A．come across | B．searched for | C．looked after | D．cared about |
| A．impact | B．process | C．advantage | D．truth |
| 小题9: |
|
| A．speechlessly | B．hopelessly | C．mindlessly | D．homelessly |
| 小题11: |
|
| A．masters | B．slaves | C．authors | D．employees |
最新试题
- 1十堰市五堰商场为了增加销售额，推出“五月销售大酬宾”活动，其活动内容为：“凡五月份在该商场一次性购物超过50元以上者，超
- 2下列各句中加粗的成语使用恰当的一句是[ ]A．他在国内影视界和社会上知名度都极高，在国际上也有较大影响，堪称炙手
- 3为了将生物进行分类，弄清楚生物之间的亲缘关系，科学家们把生物划分为不同的分类等级，分类的依据是[ ]A．生物的食
- 4某果园有100棵桃树，一棵桃树平均结1000个桃子，现准备多种一些桃树以提高产量，试验发现，每多种一棵桃树，每棵桃树的产
- 5已知数列{an}中，a1=2，an-an-1-2n=0(n≥2，n∈N)，(1)写出a2，a3的值(只写结果)并求出数列
- 6作文。（60分）请阅读下面的文字，然后按要求作文：拿破仑.希尔的祖父是北卡罗莱州的马车制造师。老人在清理耕种的土地时，总
- 7给出下列四个对应关系：（1）A=B=N*，对应关系f：x→y=|x-3|（2）A=R，B={0，1}，对应关系f：x→y
- 8在一个口袋中有5个小球，其中有两个是白球，其余为红球，这些球的形状、大小、质地等完全相同，在看不到小球的条件下，从袋中随
- 9下列各类食物中蛋白质含量最丰富的是（ ）A．B．C．D．
- 10美军为打击躲藏在阿富汗山洞中的恐怖分子，使用了一种高效能燃料空气炸弹，其主装药环氧乙烷的化学式可表示为C2H4O．下列关
热门考点
- 1已知：如图，正方形ABCD的边长为8，如果以A点为原点，AB所在直线为x轴，写出正方形各顶点的坐标。（8分）
- 2．下列划线熟语恰当的一项是：A．搞经济开发区占一点地，也在情理之中，可这个镇的领导借开发之名行卖地营私之实，这种换汤不换
- 3拥有临海的便利交通、靠近港澳的区位优势，依靠国家优惠政策，引进先进科技和管理经验，使这里成为一个伟大的支点。借助它，撬动
- 4在山顶洞人的洞穴里，发现了鱼骨和海蚶壳、一些兽牙和磨光石珠，还发现了一枚骨针。这说明①山顶洞人以捕鱼为生②他们已掌握了磨
- 5效率与公平是一对矛盾，下列对两者关系理解正确的是①效率是公平的物质前提 ②公平是提高经济效率的保证③没有效率作为
- 6有一包黑色粉末9.6g，它由氧化铜和木炭粉混合而成．现将它装入大试管中加热到不再生成红色物质为止，冷却后分离，得到红色铜
- 7When talking about the 2008 Olympic Games, you must think of
- 8今年1月，广西柳州龙江河发生镉污染．但镉是人类的朋友，如制造“镍-镉”充电电池．镉（Cd）的原子序数为48，相对原子质量
- 9***指出，“中国要出问题，还是出在共产党内部”。这表明，要坚持和改善党的领导，就必须A．不断加强党的自身建设B．不断扩
- 10中国第一个共产党早期组织成立的时间、地点是 [ ]A．1920年8月 北京B．1920年8月 上海C．1920年