Главная страница Случайная страница
КАТЕГОРИИ:
АвтомобилиАстрономияБиологияГеографияДом и садДругие языкиДругоеИнформатикаИсторияКультураЛитератураЛогикаМатематикаМедицинаМеталлургияМеханикаОбразованиеОхрана трудаПедагогикаПолитикаПравоПсихологияРелигияРиторикаСоциологияСпортСтроительствоТехнологияТуризмФизикаФилософияФинансыХимияЧерчениеЭкологияЭкономикаЭлектроника
Make a short review of this article.
|
|
8. Read the text «Advantages and Disadvantages of Nanotechnology» and make a list of advantages and disadvantages of «Nanotechnology». Fill in the table. Learn the information in the Appendix IV and write “For and Against’essay.
| Pros | Cons |
| 1. | 1. |
Advantages and Disadvantages of Nanotechnology
Nanotechnology can actually revolutionize a lot of electronic products, procedures, and applications. Industry that can benefit from nanochemistry is the manufacturing sector that will need materials like nanotubes, aerogels, nano particles, and other similar items to produce their products with. These materials are often stronger, more durable, and lighter than those that are not produced with the help of nanotechnology. On the other hand you will also find that the development of nanotechnology can also bring about the crash of certain markets due to the lowering of the value of oil and diamonds due to the possibility of developing alternative sources of energy that are more efficient and won't require the use of fossil fuels. This can also mean that since people can now develop products at the molecular level, diamonds will also lose its value since it can now be mass produced.
Another fields that benefit from the continued development of nanotechnology when it comes to electronic products include nano transistors, nanodiodes, plasma displays, quantum computers, and many more. Included in the list of disadvantages of this science and its development is the possible loss of jobs in the traditional manufacturing industry and even in farming.
Nanotechnology can also benefit the energy sector. The development of more effective energy-producing, energy-absorbing, and energy storage products in smaller and more efficient devices is possible with this technology. Such items like batteries, fuel cells, and solar cells can be built smaller but can also be made to be more effective ones.
In the medical world, nanochemistry is also seen as a boon since it can help with creating of what is called smart drugs and as well as nanomaterials. These help cure people faster and without the side effects that other traditional drugs have. You will also find that the research of nanotechnology in biochemistry is now focusing on areas like tissue regeneration, bone repair, immunity and even cures for such ailments like cancer, diabetes, and other life threatening diseases.
Advanced weapons can now be more accessible and made to be more powerful and more destructive. These can also become more accessible with nanotechnology. Since these particles are very small, problems can actually arise from the inhalation of these minute particles, much like the problems a person gets, from inhaling minute asbestos particles. Presently, nanotechnology is very expensive and developing it can cost you a lot of money. It is also pretty difficult to manufacture, probably that’s why products made with nanotechnology are more expensive.
/nannogloss.com/
8. Read and translate the sentences. Say what things (facts) are set against and which ones are approved. Use the word-combinations underlined in the “For and Against” discussion.
1. The device was reported to be improved and ready for the series production. However, this new modification turned out to have some by-effects alongside with indisputable benefits. 2. The first and the most important advantage is that this material is completely eco-friendly, but on the other hand its production will require tangible investments. 3. All these factors are on the plus side, but there is a reverse side of the coin, to be exact, this is a job-killer (шаг или мера, ведущая к потере рабочих мест). 4. Another convenience we’d like to mention about is minimization of many diagnostic devices. It also offers the advantage in the surgery and transplanpology. 5. Though the latest modification ranks in priority to the previous one, it still has some weak points.
9.Webquest. Use the Internet and find the information about modern investigations in «Nanoscience». Be ready to put it briefly in the group. Here are some possible items to consider.
Nanodrugs Nanoionics Nanotubes Nanofilms
Energy saving Nanotoxicology Lab-on-a-chip technology
| Appendix I Grammar Reference. ACTIVE VOICE | ||||
| SIMPLE | CONTINIOUS | PERFECT | PERFECT CONTINIOUS | |
| P R E S N T | I am a student of a master’s program. My master’s degree gives me more opportunities in certain job markets. | At present I’m earning a master’s degree. | I graduated from the University last year. I have jus tapplied for a master’s degree and now I’m a graduate student of the master’s degree program in Chemistry. | Since I choose the master’s program in petrochemistry I have been studying a variety of specialized courses. |
| P A S T | I applied for a master’s degree 2 years ago. | Our research group was working at this project for 2 years. | I decided to improve my knowledge and skills, so I had applied for a master’s program of my interests. | I was very busy as I had been writing my thesis. |
| F U T U R E | Next year I’ll bea master of science in chemistry | We’ll be workingwith natural samples during our field studies during next 2 weeks. | In the nearest future the majority of employers will demand a highly qualified staff. I will have been a M.Sc. by this time. | By next summer I’ll have been experiencing for a year, it will help me to complete my thesis. |
Appendix II PASSIVE VOICE: When to Use It and When to Avoid It
| Use Passive Voice | Avoid Passive Voice |
| 1. The person is unknown or irrelevant: The first alchemy records were found in Egypt. (We don't know who made them.) An experimental solar power plant will be built in the Australian desert. (We are not interested in who is building it.). | 1. When you are to refer to the exact data. Refer to figures, tables, and equations at the beginning of the sentence rather than at the end. Figure 1 illustrates the quadratic relationship between distance and velocity. |
| 2. You are writing in a scientific genre that traditionally relies on passive voice. Passive voice is often preferred in lab reports and scientific research papers, most notably in the Materials and Methods section: The sodium hydroxide was dissolved in water. This solution was then titrated with hydrochloric acid. In these sentences you can count on your reader to know that you are the one who did the dissolving and the titrating. The passive voice places the emphasis on your experiment rather than on you. | 2. Do the same with words and phrases such as " results, " " studies", and " evidence". Experimental evidence shows that the typical dose-response curve has an inverted J-shape. If you are referring to a technique or procedure, you can also achieve greater directness by making it the subject of your sentence: PCR analysis produced clones of the toxin B DNA. Thorough investigations resulted in the conclusion that the previous interpretation was improper. |
| 3. Passive voice helps to emphasize the objectivity of the sciences or the person / thing acted on. The element radon was discovered in 1900. Test-samples were flushed out by the diluted acid. | Some students use passive sentences to hide holes in their research: That phenomenon had been already considered long before current researches. (I couldn't find out who considered it) |
| 4. You are talking about a general truth: Rules are made to be broken. (By whomever, whenever.) | 4. Academic writing often focuses on differences between the ideas of different researchers, or between your own ideas and those of the researchers you are discussing. Too many passive sentences can create confusion: Research has been done to discredit this theory. (Who did the research? You? Your professor? Another author?) |
| 5. You want to be vague about who is responsible: Contradictions in terms were noticed. (Common in bureaucratic writing) | 5. Finally, passive sentences often sound wordy and indirect. they are usually longer than active sentences. They can make the reader work unnecessarily hard. Since the car was being driven by Michael at the time of the accident, the damages should be paid for by him. |
| Sometimes you may find that the sentences in active voice are stronger, shorter, and more precise: | |
| The possibility of cold fusion has been examined for many years. | Physicists have examined the possibility of cold fusion for many years. |