题目
题型：不详难度：来源：
Japan is a case in point. It has reduced automobile crashes on some roads by nearly 75 percent using a simple optical illusion. But stripes, called chevrons(人字形), painted on the roads make drivers think that they are driving faster than they really are, and thus drivers slow down.
Now the American Automobile Association Foundation(基金会) for Traffic Safety in Washington D.C. is planning to repeat Japan’s success. Starting next year, the foundation will paint chevrons and other patterns of stripes on selected roads around the country to test how well the patterns reduce highway crashes.
Excessive (too great) speed plays a major role in as much as one fifth of all fatal traffic accidents, according to the foundation. To help reduce those accidents, the foundation will conduct its tests in areas where speed-related hazards (danger) are the greatest curves, exit slopes, traffic circles, and bridges.
Some studies suggest that straight, horizontal bars painted across roads can initially cut the average speed of drivers in half. However, traffic often returns to full speed within months as drivers become used to seeing the painted bars.
Chevrons, scientists say, not only give drivers the impression that they are driving faster than they really are but also make a lane appear to be narrower. The result is a longer lasting reduction in highway speed and the number of traffic accidents.
小题1:The passage mainly discusses ________.
| A．a new way of highway speed control |
| B．a new pattern for painting highways |
| C．a new way of training drivers |
| D．a new type of optical illusion |
| A．they should avoid speed-related hazards |
| B．they are driving in the wrong lane |
| C．they should slow down their speed |
| D．they are coming near to the speed limit |
| A．can keep drivers awake | B．can cut road accidents in half |
| C．will look more attractive | D．will have a longer effect on drivers |
| A．try out the Japanese method in certain areas |
| B．change the road signs across the country |
| C．replace straight, horizontal bars with chevrons |
| D．repeat the Japanese road patterns |
| A．They are suitable only on broad roads. |
| B．They are falling out of use in the United States. |
| C．They are ignored in a long period of time. |
| D．They cannot be used successfully to traffic circles. |
答案
小题1:A
小题2:C
小题3:D
小题4:A
小题5:C
解析
为了控制车速，减少交通事故，美国决定在公路上画人字形标志。
小题1:主旨题。通读全文，我们可以知道，在高速公路上画各种线是为了让司机觉得车速过快，从而达到控制车速的目的。
小题2:细节题。由But stripes, called chevrons (人字形), painted on the roads make drivers think that they are driving faster than they really are, and thus drivers slow down.可知C项正确。
小题3:推断题。由最后两段对比可知，人字形线比直线、平等线对控制车速有更长久的影响。
小题4:细节题。根据paint chevrons and other patterns of stripes on selected roads around the country，可知他们在精心挑选的几条路上试验日本的模式。
小题5:推断题。根据 However, traffic often returns to full speed within months as drivers become used to seeing the painted bars 可知。
核心考点
试题【Believe it or not, optical illusion(错觉) can cut highway crashes.Japan is a case 】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
A simple piece of clothesline hangs between some environmentally friendly Americans and their neighbors.
On one side stand those who see clothes dryers(干衣机) as a waste of energy and a major polluter of the environment. As a result, they are turning to clotheslines as part of the “what-I –can do environmentalism(环境保护主义).”
On the other side are people who are against drying clothes outside, arguing that clotheslines are unpleasant to look at. They have persuaded Homeowners Associations (HOAs) access the U.S. to ban outdoor clotheslines, because clothesline drying also tends to lower home value in the neighborhood. This had led to a Right-to-Dry Movement that is calling for laws to be passed to protect people’s right to use clotheslines.
So far, only three states have laws to protect clothesline. Right-to-Dry supporters argue that there should be move.
Matt Reck, 37, is the kind of eco-conscious(有生态意识的) person who feeds his trees with bathwater and reuses water drops from his air conditioners to water plants. His family also uses a clothesline. But on July 9, 2007, the HOA in Wake Forest, North Carolina, told him that a dissatisfied neighlzir had telephoned them about him clothesline. The Recks paid no attention to the warming and still dried their clothes on a line in the yard. “Many people say they are environmentally friendly but they don’t take matters in their own hands,” says Reck. The local HOA has decided not to take any action, unless more neighbors come to them.
North Carolina lawmakers are saying that banning clotheslines is not the right thing to do. But HOAs and housing businesses believe that clothesline drying reminds people of poor neighborhoods. They worry that if buyers think their future neighbors can’t even afford dryers, housing prices will fall.
Environmentalists say such worries are not necessary, and in view of global warming, that idea needs to change. As they say, “The clothesline is beautiful”. Hanging clothes outside should be encouraged. We all have to do at least something to slow down the process of global warming.”
小题1:One of the reasons why supporters of clothes dryers are trying to ban clothesline drying is that ____.
| A．clothes dryers are more efficient | B．clothesline drying reduces home value |
| C．clothes dryers are energy-saving | D．clothesline drying is not allowed in most U.S. states |
| A．He is a kind-hearted man. | B．He is an impolite man. |
| C．He is and experienced gardener. | D．He is a man of social responsibility. |
| A．housing businesses. | B．Environmentalists. |
| C．Homeowners Associations. | D．Reck’s dissatisfied neighbors. |
| A．Clothesline drying: a way to save energy and money. |
| B．Clothesline drying: a lost art rediscovered. |
| C．Opposite opinions on clothesline drying. |
| D．Different varieties of clotheslines. |
This special water spider lives on the grassy banks of streams where mosquitoes, damsel flies and other insects come to feed and breed.
Although it is one of the largest spiders in New Zealand, it has an unusual ability. It doesn’t disturb the water as it waits for its meal, and there is barely a ripple(波纹) when it skims(掠过) across the surface at lightning speed to catch its prey.
Grass water spiders deal swiftly with larger insects like damsel flies by pulling their heads under the water and holding them there until they drown.
After a meal, the grass water spider spends up to half an hour grooming(修饰) itself. It wipes its eight eyes, brushes its antennae(触角), and takes special care to clean the hairs on its body.
It is the hairs that trap tiny bubbles(泡沫) of air so that the spider can run down a blade(叶片) of grass and stay underwater for up to an hour when it is frightened. The hairs also keep the spider dry, even underwater.
It is only when the female spider is caring for the young that she does not hunt on the water. After mating, she produces a large egg sac(囊), which she carries around for five weeks. Once the eggs start to hatch, she attaches the sac to some blades of grass or a thistle. She then tears the sac open and releases the tiny spiders into the nursery web.
小题1:How does the grass water spider kill its prey?
| A．in a web | B．by drowning | C．by poisoning | D．with its antennae |
| A．it walks on water | B．it has eight eyes |
| C．of its hairy appearance | D．of the way it produces its young |
| A．feeds grass and thistles to its young. |
| B．lives on blades of grass under the water |
| C．lives in the grass on the banks of streams |
| D．eats a meal once every five weeks |
| A．convince readers that spiders are dangerous |
| B．indicate that the grass water spider is endangered |
| C．list all of the spiders that can be found in New Zealand |
| D．describe the characteristics of the grass water spider |
小题1:Ray Birdwhistell believes that physical appearance _______.
| A．has little to do with culture |
| B．has much to do with culture |
| C．is ever changing |
| D．is different from place to place |
| A．before birth | B．as soon as one’s teeth are newly set |
| C．sometime after new teeth are set | D．around 15 years old |
| A．how much he or she laughs | B．how he or she raises his or her eyebrows |
| C．what he or she likes best | D．the way he or she talks |
| A．physics | B．chemistry | C．biology | D．none of the above |
After a long pause, a boy raised his hand, “Have you ever seen a grasshopper(蚱蜢) eat? When I try eating leaves like that, I get a stomachache. Why?”
This began a set of questions that lasted nearly two hours.
Secondly, give them time to think. Studies over the past 30 years have shown that, after asking a question, adults typically wait only one second or less for an answer, no time for a child to think. When adults increase their “wait time” to three seconds or more, children give more logical(符合逻辑的), complete and creative answers.
Thirdly, watch your language. Once you have a child involved in a science discussion, don’t jump in with “That’s right” or “Very good”. These words work well when it comes to encouraging good behavior(行为). But in talking about science, quick praise can signal that discussion is over. Instead, keep things going by saying “That’s interesting” or “I’d never thought of it that way before”, or coming up with more questions or ideas.
Never push a child to “Think”. It doesn’t make sense, children are always thinking, without your telling them to. What’s more, this can turn a conversation into a performance. The child will try to find the answer you want, in as few words as possible, so that he will be a smaller target(目标) for your disagreement.
Lastly, show; don’t tell. Real-life impressions of nature are far more impressive than any lesson children can learn from a book or a television program. Let children look at their fingertips through a magnifying glass(放大镜), and they’ll understand why you want them to wash before dinner. Rather than saying that water evaporates(蒸发), set a pot of water to boil and let them watch the water level drop.
小题1:According to the passage, children are natural scientists, and to raise their interest, the most important thing for adults to do is _______.
| A．to let them see the world around |
| B．to share the children’s curiosity |
| C．to explain difficult phrases about science |
| D．to supply the children with lab equipment |
| A．any questions | B．any problems |
| C．questions from textbooks | D．any number of questions |
| A．ask them to answer quickly |
| B．wait for one or two seconds after a question |
| C．tell them to answer the next day |
| D．wait at least for three seconds after a question |
| A．The second and third. | B．The fourth and fifth. |
| C．The fifth and sixth. | D．The seventh. |
| A．tell their children stories instead of reciting(背诵) facts |
| B．offer their children chances to see things for themselves |
| C．be patient enough when their children answer questions |
| D．encourage their children to ask questions of their own |
jaguar: n. a type of large, yellow-colored cat with black markings found in the southwestern region of the U. S. and in Central and South America.
jargon: 1. n. speech that doesn’t make sense. 2. n. an unknown language that seems strange or impossible to understand. 3. n. a language made up of two or more other languages: His jargon was a mixture of French and English. 4. n. the special vocabulary of a field or profession: Her report on computers was filled with jargon.
jaunt: 1. n. a trip taken for fun. 2. v. to go on a brief pleasant trip: We jaunted to the country last Saturday.
javelin: 1. n. a spear most commonly used as weapon or in hunting. 2. n. a lightweight metal or wooden spear that is thrown in track-and-field contests. 3. n. the contest in which a javelin is thrown. 4. v. to strike, as with a javelin.
jazz: 1. n. a type of music that originated in New Orleans and is characterized by rhythmic beats. 2. n. popular dance music influenced by jazz. 3. n. slang empty talk. 4. ad. of or like jazz: a jazz band, jazz records.
Jennet: n. a small Spanish horse.
小题1:Which meaning of the word javelin is used in the sentence below?
At the competition, Jack drew his arm back and threw the javelin 50 yards.
| A．Definition 1 | B．Definition 2 |
| C．Definition 3 | D．Definition 4 |
Doctors often speak in medical jargon.
| A．Definition 1 | B．Definition 2 |
| C．Definition 3 | D．Definition 4 |
Don’t give me that jazz, for I am a practical person.
| A．rhythmic beats | B．a type of music |
| C．a kind of dance | D．meaningless talk |
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