题目
题型：福建省模拟题难度：来源：
it is. It has become a new favorite of producers and sellers in recent years. Many "high-tech" products bearing
the name "nano" have entered the market, bringing more mysterious feeling to surprised consumers.
Nanometer is a very small length unit of measure, and is very small. One millimeter is 1000 micrometers,
and one micrometer is 1 000 nanometers. That is, one nanometer is one billionth of a meter. Nano materials
are solid materials made up of particles (粒子) or crystallites (晶体) of less than 100 nanometers in size. Then,
is a cup made of nano material really any different from an ordinary cup in function as far as how it works?
Are nano cups really so wonderful? A reporter went to the Institute of Nanomedicine, which is the first
such institute of such a sort in the world and the only one in China, specializing in researching the investigation
of the application of nano technology into medicine.
A water molecule (分子) is made up of 2 hydrogen atoms and l oxygen atom. It can be changed only by a
special way of controlling of the atoms. The material made into the cup can have nanometer particles. But it
cannot change the chemical and physical properties of the water contained in the cup. The water in it is still
water. When people drink it, it will produce no special effect on human body.
Professor Ji who worked in the Institute of Nanomedicine told the reporter, so far, the investigation of nano
materials is still limited in the laboratory. No commercial micro products can be produced yet. With the present
level of science and technology, the time of everyday goods made of nanometer materials is still years away.
The products labeled with nano marks in the market now are only traditional products coated with a thin
layer of nanometer material, which makes them more abrasion resistant (耐磨), much easier to be cleaned, or
oil resisting or moth proof (防蛀).
Professor Ji explained that nano cup is a real cup. It can also be included in the list of nano products in a
certain sense. But the nano cup has not changed its property and function as a cup. It is not a magical medicine
for curing and health care.
B. micrometer<millimeter<nanometer<meter
C. nanometer<micrometer<millimeter<meter
D. millimeter<micrometer<nanometer<meter
B. real nano products haven"t become available for people
C. the nano cup is very effective in curing and health care
D. real nano products are being produced by some companies
B. qualities
C. reactions
D. symbols
B. Nano Cups
C. Nano Materials
D. High-tech Research
答案
核心考点
试题【阅读理解。 Though "nanometer" (纳米) is now a fashionable term all over the world, 】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
| A picture of a set of eyes on a computer screen can cause a change in the way people act. Even images of eyes on a charity donation, collection box encourage people to be unselfish, because people put more money in a collection box that has a picture of eyes on it than they do when a flower symbol is on the box. Manfred Milinski from the Max-Planck Institute for Evolutionary Biology in Germany and Bettina Rockenbach of the University of Berlin, the authors of a new study, found that people act better when they are being watched because they feel they will be rewarded for good behaviour. |  |
| 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选项。 | |
| Students will need to use all of their skills in order to understand the reading selections in Reader"s Choice. 1_____ These selections provide practice on employing different reading skills to get the message of the writer. They also give students practice in four basic reading skills: skimming, scanning, reading for thorough comprehension, and critical reading. Skimming involves reading quickly through a text to get an overall idea of its contents. This kind of rapid reading is suitable when you are trying to decide if careful reading is desirable or 2_____ Like skimming, scanning is also quick reading. However, in this case the search is more concentrated. 3_____ When you read to find a particular date, or number you are scanning. Reading for thorough comprehension is carefully reading in order to understand the total meaning of the passage. At this level of comprehension the reader is able to summarize the author"s ideas 4_____ Critical reading demands that a reader makes judgments about what he or she reads. This kind of read requires posting arid answering questions such as "5_____", "Do I share the author"s point of view?" and "Am I convinced by the author"s arguments and evidence?" | |
| A. Does my own experience support that of the author? B. Reader"s Choice is one of the most popular magazines in the world. C. but has not yet made a critical evaluation of those ideas. D. The book contains many types of selections on a wide variety of topics. E. To scan is to read quickly in order to find out specific information. F. Do I know about the author? G. when there is no time to read something carefully. | |
| 阅读理解。 | |
| At age 61, identical twins Jeanne and Susan no longer look exactly alike. Susan smoked for many years and is an admitted sun worshipper, whose habits Jeanne does not share. A new study of twins suggests you can blame those coarse (粗糙的) wrinkles, brown or pink spots on too much time in the sun, smoking, and being overweight. Because twins share genes, but may have different exposures to environmental factors, studying twins allows an "opportunity to control for genetic susceptibility (易受影响性)," Dr. Elma D. Baron, at Case Western Reserve School of Medicine in Cleveland, Ohio, and his colleagues explain in the Jatest issue of Archives of Dermatology. Their analysis of environmental skin-damaging factors in 65 pairs of twins hints that skin aging is related more to environment and lifestyle than genetic factors. But when it comes to skin cancer, the researchers say their findings support previous reports that both environment and genes affect skin cancer risk. Baron"s team examined facial skin of 130 twins, 18 to 77 years old, who lived mostly in the northern Midwest and Eastern regions of the US, who were attending the Twins Days Festivalin Ohio in August 2002. At this time, each of the twins also separately reported how their skin burned or tanned (晒黑) without sunscreen, their weight, and their history of skin cancer, smoking, and alcohol drinking. The study group consisted of 52 fraternal (异卵双生) and 10 identical twin pairs, plus 3 pairs who were unsure of their twin status. From these data, the researchers noted strong ties, outside of twin status, between smoking, older age, and being overweight, and having facial skin with evidence of environmental damage. By contrast, sunscreen use and drinking alcohol appeared related to less skin damage. Baron and his colleagues say the current findings, which highlight ties between facial aging and potentially avoidable environmental factors-such as smoking, being overweight, and unprotected overexposure to the sun"s damaging rays-may help motivate people to minimize these risky behaviors. | |
| 1. Which of the following is true according to the passage? | |
| [ ] | |
| A. Jeanne and Susan share all the habits including smoking. B. Skin aging is related more to environment and lifestyle than genetic factors. C. Only identical twins can take part in the research. D. Sunscreen use cannot help people have less skin damage. | |
| 2. Why did Baron"s team do the research on twins? | |
| [ ] | |
| A. Twins are more likely to suffer from skin cancer. B. It may guarantee the research is not influenced by genetic factors. C. It gives others an opportunity to control twins" genes. D. It helps find twins are exposed to different environments. | |
| 3. What can you infer from the last paragraph? | |
| [ ] | |
| A. This research makes people aware of dangerous lifestyles. B. The environmental factors are unavoidable. C. Being exposed to the sun is absolutely damaging. D. There is little relationship between skin aging and environment. | |
| 4. The passage is mainly concerned with _____. | |
| [ ] | |
| A. skin cancer and environment B. identical twins research C. aging skin and environmental factors D. genes and lifestyles | |
| 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选项。 | |
| There were times when it was only schoolchildren who felt sick before they got their grades. 1_____ Many teachers are opposed to it. They don"t mind being evaluated. But they are upset because the results are then being posted on the Internet and accessible to millions of Internet users. 2_____ The teachers are graded on categories such as "motivated", "good instruction", "easy examinations", or even "sexy". 3_____ The creators of the website say that the students are only being offered the chance to provide teachers with some feedback (反馈) about their classroom instruction. Bemd Dicks founded the website with three friends. 4_____ On a grading scale of one to six, the teachers" average grade is as high as 2.7 and it has been improving lately. He often says the impression is that students are bullying (欺负) their teachers. But there is also bullying of the students by teachers. "Teachers must also learn to live with criticism," he added. But still, the website is not totally prevented from being manipulated (人为操纵), as one teacher near the northern city of Hanover recently proved. 5_____ Within a few days, seven of his colleagues were listed in the top 10 rankings of Germany"s best teachers. | |
| A. On the website www.spickmich.de during the past four months students have posted evaluations of 100 000 teachers. B. He registered himself on the website as a student and then rated his own teaching colleagues highly. C. Many teachers think that their privacy has been disturbed. D. But now teachers in Germany are scared, too, as they are being.graded by their students. E. He says that the students are largely quite satisfied with their teachers. F. He says a majority of the students expressed their dissatisfaction with their teachers. G. He tried to make friends with students as many as possible. | |
| 完形填空。 | |
| Flying like a bird has been the dream of humans since ancient times. Last week a group of modern birdmen put their courage on their wings and 1 gravity in Hangzhou, Zhejiang Province. "Yes, you can buy a ticket and fly to another city. But running with your own wings and feeling your feet ready to 2 is totally different, "Dong Fang, a middle school student in Hangzhou who 3 a home- made aircraft competition, said in an excide voice. 4 by the Intemational Bognor Birdman Competition in the UK, the competition in Hangzhou was a similar event. The Bognor Birdman Competition startde in l97l in the England coastal city Bognor. People ran off the end of a pier (码头)with their own aircraft in a(n) 5 to "fly" the farthest distance. In the competition, a teacher called Ni was amazed to see how imaginative the students were. He was surprised to see his students create 10 different aircrafts with all kinds of material 6 in the past month. "We"d rather call ourselves dreamers 7 pilots because whether our wings really leave the ground,our dream really flies," said Dong Fang. Jing Yuchen and his team named their plane "weiming E", which 8 an unknown goose. The 17-year-old boy deeply believes their goose of steel pipe and sailcloth will honour its name by successfully making it fly. "Our work is much more imaginative than others. With several colourful balloons on its back and a pair of light plastic wings, it is 9 the most eye-catching work, if not the best," said Yu Liang, another student. "Although nlost of those home-made aircrafts cannot really take the boys flying, the boys" braveness and 10 in this project will encourage every one of them to fly high in the future," Ni said. | |