题目
题型：不详难度：来源：
Decibels（分贝）measured in water are different from those measured on land. A noise of one hundred and twenty decibels on land causes pain to human ears. In water, a decibel level of one hundred and ninety-five would have the same effect.
Some scientists have proposed setting a noise limit of one hundred and twenty decibels in oceans. They have observed that noises at that level can frighten and confuse whales.
A team of American and Canadian scientists discovered that loud noises can seriously injure some animals. The research team found that powerful underwater explosions were causing whales in the area to lose their hearing. This seriously affected the whales’ ability to exchange information and find their way. Some of the whales even died. The explosions had caused their ears to bleed and become infected.
Many researchers whose work depends on ocean sounds object to a limit of one hundred and twenty decibels. They say such a limit would mean an end to important industrial and scientific research.
Scientists do not know how much and what kinds of noises are harmful to ocean animals. However, many scientists suspect that noise is a greater danger than they believed. They want to prevent noises from harming creatures in the ocean.
小题1:According to the passage, which of the following is increasingly dangerous to sea creatures?
| A．The man-made noises. |
| B．The noises made by themselves. |
| C．The sound of earthquakes. |
| D．The sound of the ice-breaking. |
| A．They are deaf to noises. |
| B．Noises at a certain level may hurt them. |
| C．They are easily confused by noises. |
| D．Noises will limit their ability to reproduce. |
| A．prevent them from doing their research work |
| B．benefit them a lot in their research work |
| C．do good to their health |
| D．increase the industrial output |
| A．They will try their best to decrease noise. |
| B．They will work hard to cut down noise pollution. |
| C．They will study the effect of different noises. |
| D．They will protect animals from harmful noises. |
答案
小题1:A
小题2:C
小题3:A
小题4:C
解析
试题分析：科学家认为,人类海上活动导致的噪音污染对海洋生物的健康和行为产生了巨大的影响，甚至威胁到了他们的生存。虽然科学家不知道什么样的噪音对海洋生物有害，然而许多科学家怀疑噪声的危害要远远大于他们想象的程度，因此他们要努力去防止噪声对于海洋动物的危害。
小题1:A细节理解题。根据文章首句Some scientists say that animals in the ocean are increasingly threatened by noise pollution caused by human beings.可知科学家认为海洋动物受到了人类噪音的威胁，故A选项正确。
小题2:C推理判断题。根据文章第四段This seriously affected the whales’ ability to exchange information and find their way.可以推断这些海洋噪音影响到了鲸鱼的听力和导航能力，所以判断C选项正确。
小题3:A细节理解题。根据文章倒数第二段They say such a limit would mean an end to important industrial and scientific research.可知科学家们认为对于分贝的控制会影响一些工业和科学研究工作，所以A选项正确。
小题4:C推理判断题。在文章末段作者提到“尽管科学家们不知道哪些噪音威胁着海洋动物，但是他们要想办法去阻止噪音对于海洋生物的危害”，由此推断为了保护海洋动物他们会努力去研究这些噪音，选C。
核心考点
试题【Some scientists say that animals in the ocean are increasingly threatened by noi】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
For example, they might stick themselves with a needle while treating patients. Such needle sticks are common. But a recent study found that medical students often fail to report them. Failing to report an injury like this can be dangerous if a patient, or a medical worker, has an infectious disease.
Researchers at Johns Hopkins University in Baltimore, Maryland, did the study, which involved a survey answered by almost 700 surgeons in training in the United States.
Almost 60% said they had suffered needle stick injuries when they were in medical school. Many said they were stuck more than once. Yet nearly half of those whose most recent incident happened in school did not report it to a health office. If they had, they would have been tested to see if they needed treatment to prevent an infection like HIV or hepatitis.
Most known cases of HIV or hepatitis are reported, but other possible infections often are not. Martin Makary, the lead author of the study, says medical students who are stuck put themselves and others in danger from infectious diseases.
Doctor Makary said, "A needle that goes through the skin needs to be as sharp as possible.” Doctors in training may have to do hundreds of stitches (缝线) in some cases to close the skin after an operation.
Doctor Makary said, “I support using blunt tip needles which are considered safer. This needle is still sharp enough to go through body tissue, but it does have a blunt tip, so that if it accidentally goes into my finger, it"s much less likely to hurt me."
How common are needle sticks among health care workers? An estimated 600,000 to 800,000 of these and similar injuries are reported each year in the United States. But Doctor Makary says the real number may be much higher.
The study advises doctors to protect their hands by wearing two sets of gloves. It also urges hospitals to establish a special telephone number for medical workers and students to call if they are injured. The idea is for hospitals to send a clear message that there is no reason not to report this kind of accident.
小题1:It is dangerous for medical students not to report needle stick injuries because _________.
| A．they don’t know how to treat themselves. |
| B．they may meet more needle sticks |
| C．it may cause some diseases |
| D．it may make patients sad. |
| A．receive treatment | B．be forbidden to use sharp needles |
| C．spend more time on training | D．receive tests |
| A．not sharp | B．not safe | C．not long | D．not thick |
| A．Doctors who don’t report needle stick injuries will be punished. |
| B．Needle sticks among health care workers will reduce sharply in the future. |
| C．Most needle stick injuries happen in the United States. |
| D．Two suggestions are given to protect medical workers and students. |
| A．In an entertainment magazine | B．In a science magazine |
| C．In a storybook | D．In science fiction |
I turned around to find a wrinkled, little old lady with a warm smile. She said, "Hi handsome. My name is Rose. I"m eighty-seven years old.”
"Why are you in college at such a young age?" I asked. She replied, "I"m here to meet a rich husband, get married, have a couple of kids and then retire(退休) and travel..."
I knew she was joking. I was curious what might have motivated her to be taking on this challenge at her age.
"I always dreamed of having a college education and now I"m getting one!" she told me.
We became friends. Every day we would talk nonstop after class. I was always interested in listening to this "time machine" as she shared her wisdom and experience with me. And Rose easily made friends wherever she went.
At the end of the term we invited Rose to make a little speech. She cleared her throat and began, "We do not stop playing because we are old; we grow old because we stop playing. I’ve learned a few secrets to staying young, being happy, and achieving success. You have to laugh and find humor every day. You"ve got to have a dream. When you lose your dreams, you die.”
“There is a huge difference between growing older and growing up. Anybody can grow older. That doesn"t take any talent or ability. The idea is to grow up by always finding the opportunity in change.
“Have no regrets. The elderly usually don"t have regrets for what we did, but rather for things we did not do……"
小题1:When the writer and Rose first met, they began their talk in a_______ way.
| A．serious | B．polite | C．formal | D．humorous |
| A．encouraged | B．persuaded | C．taught | D．forced |
| A．meet a rich husband | B．make new friends |
| C．get a college education | D．get a better job |
| A．she always came to class on time. |
| B．she make friends easily at college. |
| C．she knew the difference between growing older and growing up |
| D．she enjoyed a long life and had lots of wisdom and experience. |
| A．“The early bird catches the worm” |
| B．“It is never too late to learn” |
| C．“A bird in the hand is worth two in the bushes” |
| D．“One false step will make a great difference.” |
Between December of 1811 and February of 1812, three major earthquakes occurred, all centered around the town of New Madrid, Missouri, on the Mississippi River. Property damage was severe. Buildings in the area were almost destroyed. Whole forests fell at once, and huge cracks opened in the ground, releasing some strong smell chemicals.
The Mississippi River itself completely changed character, developing sudden rapids and whirlpools (激流和漩涡). Several times it changed its course, and once, according to some observers, it actually appeared to run backwards. Few people were killed in the New Marid earthquakes, probably simply because few people lived in the area in 1811; but the severity of the earthquakes are shown by the fact that the shock waves rang bells in church towers in Charleston, South Carolina, on the coast. Buildings shook in New York City, and clocks were stopped in Washington, D.C.
Scientists now know that America"s two major faults are essentially different. The San Andreas is a horizontal boundary between two major land masses that are slowly moving in opposite directions. California earthquakes result when the two masses make a sudden move.
The New Madrid fault, on the other hand, is a vertical fault; at some points, possibly hundreds of millions of years ago, rock was pushed up toward the surface, probably by volcanoes under the surface. Suddenly, the volcanoes cooled and the rock collapsed, leaving huge cracks. Even now, the rock continues to settle downwards, and sudden sinking motions cause earthquakes in the region. The fault itself, a large crack in this layer of rock, with dozens of other cracks that split off from it, extends from northeast Arkansas through Missouri and into southern Illinois.
Scientists who have studied the New Madrid fault say there have been numerous smaller quakes in the area since 1811; these smaller quakes indicate that larger ones are probably coming, but the scientists say they have no method of predicting when a large earthquake will occur.
小题1:This passage is mainly about ___________.
| A．current scientific knowledge about faults |
| B．the San Andreas and the New Madrid faults |
| C．the causes of faults |
| D．the New Madrid fault in Missouri |
| A．a vertical fault |
| B．a horizontal fault |
| C．a more serious fault than the San Andreas fault |
| D．responsible for forming the Mississippi River |
| A．horizontal faults are more dangerous than vertical faults |
| B．Vertical faults are more dangerous than horizontal faults |
| C．The volcanoes that caused the New Madrid fault are still alive |
| D．A lot of people would die if the 1811 New Madrid earthquakes happened today |
Hard as it may be to believe, the fireplace—long considered a trophy(奖杯), particularly in a city like New York—is acquiring a social shame. Among those who desire to be environmentally responsible, it is joining the ranks of bottled water and big houses.
Sally Treadwell, a 51-year-old public relations executive in Boone, N.C., said nothing makes her happier than building a fire on a cold winter night. But most of the time she doesn’t, because she feels too guilty about the damage it may do to the environment. Every time she builds a fire, it causes “inner conflict,” she said. “It’s a guilty pleasure”.
“The smoke from a fire smells very nice,” said Diane Bailey, a senior scientist with the Natural Resources Defense Council in San Francisco. “But it can cause a lot of harm. The tiny particles(颗粒) can cause illness, and can cross into the bloodstream, causing heart attacks as well as worsening other conditions.”
Growing concerns about the air pollution and health problems caused by smoke from wood fires are urging a number of areas across the country to pass laws regulating them. Idaho offers a tax cut to people who replace uncertified(不合格的)wood stoves with “greener” ones; San Joaquin County in California forbids selling a home unless its wood stove is replaced with an E.P.A. certified one；and Palo Alto and other governments in California forbid wood-burning fireplaces in new construction.
Certainly, many think otherwise. In any case, most fireplaces are used far too infrequently to cause any real damage to the environment, said Stephen Sears, the vice president of the Brick Industry Association, voicing an opinion shared by some.
Perhaps not coincidentally, sales of wood-burning equipment dropped to 235,000 in 2009 from 800,000 in 1999, according to the Brick Industry Association. It also reports that approximately 35,000 fireplaces were installed in the United States in 2009, compared to 80,000 in 2005. Certainly those numbers reflect the economic slowdown, but the may also be affected by growing mixed feelings to wood fries.
小题1:We can infer from the 2nd paragraph that ________.
| A．big houses are not considered environmentally friendly |
| B．bottle water is a good companion for a fire place |
| C．a fireplace is viewed as a sign of success |
| D．people in New York are laughed at for their tradition |
| A．her love for the fireplace |
| B．the damage to the environment |
| C．the concern about her health |
| D．her mixed emotion fro the fireplace |
| A．uncertified fireplaces are forbidden in Idaho |
| B．some people are against the woodfire controlling regulations |
| C．only energy-efficient wood stoves can be used in the US |
| D．all the people support measures taken to control the use of fireplaces |
| A．To urge people to burn less wood |
| B．To discuss wood-burning’s impact |
| C．To throw light on the causes of the fireplace’s decline |
| D．To indicate the cooling love for the fireplace |
You get up in the morning and look into the mirror. Your face is firm and young-looking. In 2035, medical technology is better than ever. Many people at your age could live to be 150, so at 40, you’re not old at all. And your parents just had an anti-aging (抗衰老的) treatment. Now, all three of you look the same age!
You say to your shirt, “Turn red.” It changes from blue to red. In 2035, “smart clothes” contain particles (粒子) much smaller than the cells in your body. The particles can be programmed to change your clothes’ color or pattern.
You walk into the kitchen. You pick up the milk, but a voice says, “You shouldn’t drink that!” Your fridge has read the chip (芯片) that contains information about the milk, and it knows the milk is old. In 2035, every article of food in the grocery store has such a chip.
It’s time to go to work. In 2025, cars drive themselves. Just tell your “smart car” where to go. On the way, you can call a friend using your jacket sleeve. Such “smart technology” is all around you.
So will all these things come true? “For new technology to succeed,” says scientist Andrew Zolli, “it has to be so much better that it replaces what we have already.” The Internet is one example—what will be the next?
小题1:We can learn from the text that in the future ________.
| A．people will never get old |
| B．everyone will look the same |
| C．red will be the most popular color |
| D．clothes will be able to change their pattern |
| A．Milk will be harmful to health. |
| B．More drinks will be available for sale. |
| C．Food in the grocery store will carry electronic information. |
| D．Milk in the grocery store will stay fresh much longer. |
| A．Nothing can replace the Internet. |
| B．Fridges will know what people need. |
| C．Jacket sleeves can be used as a guide. |
| D．Cars will be able to drive automatically (自动的). |
| A．Food and clothing in 2035. |
| B．Future technology in everyday life. |
| C．Medical treatments of the future. |
| D．The reason for the success of new technology. |
最新试题
- 12006年底，国务院国资委出台《关于推进国有资本调整和国有企业***指导意见》，明确了161户中央企业国有资本的调整路线图
- 2某铁制品表面有铁锈（主要成分是Fe2O3），下列可用于除去铁锈的是（ ）A．蒸馏水B．食盐水C．稀硫酸D．氢氧化钠
- 3实验室有盐酸、碳酸钠、澄清石灰水三种溶液，请你从这三种溶液中任选两种溶液，用化学方法进行鉴别（要求：①每次鉴别要一次完成
- 4物质的熔沸点高低能用键能大小解释的是A．Na ＞ KB．O2＞ N2C．H2O ＞ H2SD．SiO2 ＞ CO2
- 5汉语中一些量词形象生动，富有韵味。阅读下面的例句，从备选例子中选择两个量词加以揣摩赏析。（6分）泓：一“泓”清泉。清澈的
- 6实数m分别取什么数值时？复数z=(m2+5m+6)+(m2-2m-15)i， (1)与复数2-12i相等；(2)与复数1
- 7（6分）A~H都是初中化学常见的物质，它们的转化关系如下图所示。A、B均为黑色粉末；D、F均为红色固体，且D为单质；C能
- 8下表是小明同学利用如图所示的实验装置探究液体压强规律时所测得的部分数据：实验编号深度/cm橡皮膜方向压强计左右液面（水）
- 9若，，则= ( ) A．B．C．D．
- 10小鹭善于观察身边的物理现象，一天，她从冰箱的冷冻室中拿出一支冰棍，发现冰棍上附着白花花的“粉”；剥去包装纸，看见冰棍在冒
热门考点
- 1直线的斜率为，，直线过点且与轴交于点，则点坐标为（ ）A．B．C．D．
- 2—Do you think it was the supermoon that caused the earthquak
- 3跳水皇后伏明霞在1992年巴塞罗那奥运会上夺得10m跳台冠军时只有14岁，是奥运会历史上最年轻的世界冠军（由于后来国际奥
- 4下列各句中没有语病的一句是[ ]A．伊朗总统艾哈迈迪·内贾德4日在伊朗的纳扎巴拉德城发表演讲，伊朗不会在核问题上
- 520℃时，向50g碳酸钠饱和溶液中加入少量碳酸钠粉末，下列各量中不会发生变化的是（ ）A．溶液质量B．溶剂质量C．溶质
- 6下列实验现象和对应的结论描述都正确的是A．在某固体中滴加稀盐酸，有气泡产生一一该固体一定是碳酸盐B．在无色溶液中滴入酚酞
- 7(16分)如图所示，ABDO是处于竖直平面内的光滑轨道，AB是半径R＝15m的四分之一圆周轨道，半径OA处于水平位置，B
- 8下面为“某岛屿的示意图”，该岛约有280万人口，岛上主峰蓝山峰海拔为2256米。读图并结合所学知识完成下题。下列有关该岛
- 9如图，共有7个全等的三角形，你能分析说明第1个三角形经过什么变化可以依次得到其余6个三角形吗？
- 10化学兴趣小组的同学利用废铜制取硫酸铜，设计了如下两个方案：比较上述两个方案，你认为方案一的优点是①节约能源 ②不产生污