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1. What aspects of the development of the optical brain are mainly introduced in the first paragraph?
Answer: The time it takes to develop a light brain; the countries and people involved in the development of the optical brain; The results of the development of a light brain.
2. Read the section carefully.
In the second and third paragraphs, let's talk about what aspects of the optical brain are superior to the computer.
A: The calculation speed is fast; Works at room temperature; The amount of information stored is larger; No wire conduction is required; The density of parallel channels that transmit information is unlimited.
3. What are the methods of explanation used in the underlined sentence? What does it do?
Answer: Give examples, list numbers, and make comparisons. Specifically, it shows that the density of parallel channels of the "wireless computer" of the optical brain is large.
4. What is a "hybrid" computer? What is its most outstanding advantage?
A: A computer that combines a conventional electronic converter with photons. Faster processing of information and overcoming internal overheating.
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If you've read this article, I think the question I want to ask is whether we should stick to our choices at all times.
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After reading this short article, what we understand should be the development and progress of time, and empathy.
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It shows that the density of parallel channels of the "wireless computer" of the optical brain is large. 4.Combines conventional electronic converters with photons. Putting forward the teaching task: on the basis of all-round development of physical fitness, further develop agility and strength
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You can combine your feelings after reading the article, and then say what aspects you have questions, just say your own problems, you can look at the relevant introductions in it, and then say what you don't understand.
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After reading this short article, what is the question raised? Our brains carry countless knowledge, carry countless positive energy, and we can't always sit on meaningful things, that is a waste of life.
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The question I ask is, if the light brain is caused by people, then how can I change this phenomenon?
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In addition to the light brain, this short article can make us feel that the future of science and technology is changing with each passing day and is very developed.
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After reading the questions that the light brain wants to raise, that is, some questions that I don't understand.
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Yes, and even if there is any problem, it is not a big deal, as long as you believe in yourself, many problems can be solved.
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In addition to Hiroshima's article, there are many questions that can be asked about the functioning of the brain. What do people think about things?
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After reading this short essay in Hiroshima, I can ask any questions, and what is the author's thinking? What kind of theme do you want to convey?
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1 The object of this text is:
Answer Lightbrain.
Analysis This question examines the identification of the object of explanation, which is one of the forms of summarizing the content of the explanation. This question is not very difficult, in addition to the content of the article, it can also be seen from the following questions. When answering questions, pay attention to the connection between the questions and the questions.
2 What are the advantages of the abbreviated optical brain compared with the computer?
Answer Not intended as a standard answer. Deduction "has super parallelism, under conditions close to room temperature, has super computing speed, and strong anti-interference ability" is awarded.
Analysis There are five paragraphs in the selected text, and the answer is based on the first parentheses of the last three paragraphs. When organizing answers, care should be taken to be concise, and to delete repetitive words that should be deleted and those that should be merged should be merged.
3 What are the main explanatory methods used in this passage?
Answers: Compare, categorize, and list numbers (any two correct answers will be awarded).
Analysis This question mainly tests the grasp of the method of explanation. In this paper, when explaining the working principle, parallelism, computing speed and anti-interference ability of the optical brain, the two types of things are compared, including two methods of comparison and classification. When illustrating the computational speed of the optical brain at close to room temperature, the method of explaining the column numbers is also used.
4 From what two aspects does the natural paragraph introduce the supercomputing speed of the light brain at close to room temperature?
On the one hand, from the light brain
On the other hand, from the light brain
Answer Photon propagation speed block, communication time is short The frequency band of light is large, and it has a huge amount of information storage (1 point for correct answers).
Analysis: This question mainly tests the understanding of the content of the text. There are three sentences in the first paragraph, the first sentence is a summary sentence, and the last two sentences give specific instructions on the first sentence, and the word "at the same time" is a clear sign. Let's grasp the key words in the last two sentences and summarize them.
5 In the sentence "The working principle of the optical brain and the computer is basically the same, except that the photon replaces the electron", the word "basic" is used accurately because
Answer "Basic" means that most of the work works the same, but there are also some differences, indicating that there is some leeway to speak. (Justified is to give points).
Analysis: This question tests the understanding of the accuracy of the language of the expository text. "Basic" here means "generally", and it is used to modify "same", indicating that the so-called "same" is only in general terms, and there are differences in some aspects. In fact, according to the content of the article and common sense, it is not difficult to conclude that if the working principle of the light brain and the computer is exactly the same, then the superiority of the light brain will lose the basis for existence.
6 Name two high-tech products based on your usual accumulation.
Answer Such as digital TV, digital camera, electronic computer, Shenzhou 5 spacecraft, etc. (The product can be said to have a high technology content).
Analysis This question has a lot of openness, and it is not difficult for candidates to pay attention to life and reports.
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Light brain. At present, the world's first optical brain has been successfully developed by the European Community, which is an all-optical digital computer, and its computing speed is 1,000 times faster than that of a computer.
The working principle of the optical brain and the computer is basically the same, the difference is that the photons replace the electronic wire interconnection; Optical switches, optical transistors, optical memory, feedback devices and integrated optical paths and other components replace the electronic hardware in the computer; Optical arithmetic was used instead of electrical arithmetic; The von Neumann structure was replaced by a non-von Neumann structure; As a result, the functions in the light brain are beyond the reach of the computer.
The light brain is hyperparallel. At present, the latest parallel processing electronic computers often have the parallelism of NXI, and their structure and operation are extremely complex, and the speed and accuracy are also quite low. Lightbrain is different, it not only has the parallelism of NXI, but also has the characteristics of strong parallel communication and parallel processing capabilities, and can be used to process large arrays with simple operations.
The photobrain can have super-computing speed at close to room temperature. The propagation speed of electrons can only reach 593 kilometers per second, while the speed of photons is 300,000 kilometers per second, so the use of light to interconnect communication in optical cables reduces a lot of time compared with the use of electrons to communicate in interconnected wires, and improves the speed of computing. At the same time, the computing devices of ultra-high-speed computers can only work at extremely low temperatures, while the optical brain can perform ultra-high calculations at close to room temperature, and the frequency band of light is much larger than that of radio waves and microwaves, and it has a huge amount of information storage, and the storage capacity can reach bits.
The light brain has strong anti-interference ability. The photobrain relies on photons to transmit information, and the photoelectrons are not charged, so they have no effect on other neighboring photons and electrons. Therefore, the optical signals not only do not interfere with each other, but also can cross with the electronic control signal, in addition, the optical brain has good fault tolerance, with similar fault tolerance to the human brain, when a component in the system is damaged or error, it does not affect the final result.
The object of this text is 1 point
What are the advantages of Abbreviated Optical Brain compared with computers? 3 points
What are the main explanatory methods used in this short article? 1 point
In the fourth paragraph, what two aspects introduce the supercomputing speed of the optical brain at close to room temperature? 2 points.
The working principle of the optical brain and the computer is basically the same, the difference is that the photon replaces the electron", what is the reason why the "basic" is used accurately? 1 point
According to your usual accumulation, name two high-tech products. 1 point
Answer. 1. Light brain.
2. First, the optical brain has super-parallelism, second, the photobrain can have super-computing speed under conditions close to room temperature, and third, the photobrain has strong anti-interference ability.
3. Compare the numbers by category.
4. On the one hand, the photon propagation speed is fast, the communication time is short, and the second is that the frequency band of light is large, and it has a huge amount of information storage.
5. Most of the basic instructions work on the same principle, but there are also certain differences, indicating that there is a certain amount of leeway for speaking, and the language is more rigorous.
6. Digital cameras, digital televisions, electronic computers.
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