1、Manipulator is now used as a industrial robots in use, the control objectives often appear often in industrial automation. Industrial automation technology has gradually matured, as mature a technology line has been rapid development in industrial automation as a separate subject. Manipulator applic
2、ation began to filter into welding, logistics, mechanical processing, and other industries. Especially at high or very low temperatures, full of poisonous gases, high radiation case, robot in similar circumstances showed great use also brings great convenience to the staff. Precisely because of this
3、 robot to get people's attention began to be a high degree of development. Labor rates, working conditions, labor intensive aspects of promoting development. Both at home and abroad to develop the PLC (programmable logic controller) is in various special circumstances and under special conditions se
4、t for mechanical devices. Now turned on the development of the microelectronics automatic control technology and the rapid development of the trains, the success of PLC hardware software and simulation control win big and successful development, now continues to develop as a factory automation stand
5、ards. Because robots are good development of the technology makes a good optimization of productive capital, and robot shows this unique advantages, such as: has good compatibility, wide availability, hardware is complete, and programming that can be mastered in a short time, so in the context of in
6、dustrial PLC applications became ubiquitous. Manipulator in many developed country agriculture and industry has been applied, such as the use of mechanical harvesting large areas of farmland, repeated operations on the high-speed line that uses a robotic arm, and so on. Today, the high level of auto
7、mation combined with restrictions on the manipulator development level is slightly lower than the international. The design is mainly arm welding machine by PLC Automation control. This of design let designers on in school by learn of has a must of consolidation, understand has some usually didn't o
8、pportunities awareness in world range within some leading level of knowledge has has must awareness, hope designers can in yihou of design in the can success of using in this design in the proceeds of experience 1.2 manipulator in both at home and abroad of research profile automation mechanical arm
9、 research began Yu 20th century medium-term, after years with with computer and automation technology of development, Makes mechanical arm on the Grand stage of industrial automation and shine, gradually became an industrial evaluation standards, and its importance can be seen. Now original robotic
10、arm spent most of mass production and use on the production line, which is programmed robotic arm. As the first generation of manipulator position control systems main features, although not back several generations that can detect the external environment, but can still successfully complete like w
11、elding, painting, delivery as well as for materials simple movements. Second generation mechanical arms are equipped with sensors and manipulators have the environment there is a certain amount of "sense", when the mechanical arm is to use the program as a basis. Difference is that the robot begand
12、 2015 National English Contest for College Students (Level D – Preliminary) (总分:150分 时间:120分钟) Part I listening Comprehension (30 marks) Section A (5 marks) In this section, you will hear five short conversations. Each conversation will be read only once .At the end of each conver
13、sation, there will be a twenty-second pause During the pause, read the question and the four choices marked A, B ,C and D , and decide which is the best answer .Then mark the corresponding letter on the answer sheet with a single line through the centre. 1. When will the woman’s cousin hold his we
14、dding? A. Next Tuesday. B. Next Wednesday. C. Next Thursday. D. Next Friday. 2. How did James deal with the envelope? A. He sent it to his brother in Brazil. B. He gave it to his brother. C. He threw it away. D. He put it under the desk. 3. Where was Mr Joyce’s car parked? A.
15、In a parking lot. B. Near his grandmother’s house. C. At the police station. D. On a street. 4. Why has Jacky been to New York? A. To do market research. B. To have a weekend trip. C. To open a computer market. D. To buy a personal computer. 5. Why does the woman choose to buy The Guardian?
16、 A. It carries a word game she likes. B. Its political views are similar to hers. C. Its arts section is interesting to read. D. It has fewer advertisements. Section B (10 marks) In this section, you will hear two long conversations. Each conversation will be read only once. At the end of ea
17、ch conversation, there will be a one-minute pause. During the pause, read the questions and the four choices marked A, B, C and D , and decide which is the best answer. Then mark the corresponding letter on the answer sheet with a single line through the centre Conversation One 6. What is the rel
18、ationship probably between the speakers? A. Professor and students. B. Manger and secretary. C. Interviewer and candidate. D. Doctor and patient. 7. What does Hall International build in developing countries? A. Schools . B. Railways. C. Bridge . D. Hospital . 8. Where did the man get the
19、information about Hall International? A. From a news report. B. Form its website. C. From a friend. D. From an advertisement. 9. What did the man major in at collage? A. Human resource management. B. Civil engineering. C. Market management. D. Mass media. 10. What can we infer from the con
20、versation? A. The man did very well at collage. B. Hall International is located in a developing country. C. If the man is employed, he is likely to work abroad. D. Imperial Collage is probably not a very good university. Conversation Two 11. Which part of Africa has been probably most serio
21、usly affected by Ebola? A. West Africa. B. East Africa. C. South Africa. D. North Africa. 12. The virus “Ebola” got its name after________. A. an Asian doctor B. an river in Africa C. an African plant D. an mental disease 13. What does the Health Minister of Liberia say if the experimenta
22、l drug doesn’t work on a patient? A. The patient can use the hospital and the doctors. B. Both the government and the doctors are responsible. C. The patient is not support to use. D. The patient has the right to compensation. 14. When was the virus Ebola discovered? A. In 1966. B. In 1976.
23、C. In 1986. D. In 1996. 15. When Ebola was first discovered, which animal was suspected to carry the virus? A. Mosquito. B. Mouse. C. Monkey. D. Bat. Section C (5 marks) In this section, you will hear five short news items. After each item, which will be read only once, there will be a pau
24、se. During the pause, read the question and the four choices marked A, B C and D, and decide which is the best answer. Then mark the corresponding letter on the answer sheet with a single line through the centre. 16. What does the company CyberEdit aim to do? A. Provide computer editing services f
25、or students. B. Write essays for students. C. Edit documents for Wired magazine. D. Supply founding for businesses. 17. How much did Mark earn in the first year? A. $ 400. B. $ 4,000. C. $ 40,000. D. $ 400,000. 18. How much hours did Mark spend editing documents per week? A. Fourteen hours
26、 B. Fifteen hours. C. Thirty hours. D. fifty hours. 19. Why do same interested investors invest money in CyberEdit? A. Because Mark has emailed them for help. B. Because Wired magazine has called on them to do this. C. Because Mark has made money and employed some collage students. D. Becau
27、se Wired magazine and ABC News has given Mark great publicity. 20. When is it the best time for someone t o develop a business according to Mark? A. After they graduate from collage. B. When they are enough money. C. When they get enough money. D. When they have enough
28、 real-word experience. Section D (10 marks) In this section, you will hear a short passage. There are 10 missing words or phrases. Fill in the blanks with the exact words or phrases you hear. The passage will be read twice. Remember to write the answers on the answer sheet. The word or phrase
29、 that you use to open your email account may provide a key to your personality as well as to your (21) ______, according to a British psychologist. Helen Petrie, professor of human-computer interaction at City University in London, analyzed the responses of 1, 200 Britons who (22) ______a surve
30、y funded by CentralNic, an Internet domain-name company. The result were publishes on CentralNic’s website. Petrie (23)______ three main password “genres”. “Family oriented” respondents numbered nearly half of those surveyed. These people use their own or nickname, the name of a child, or part
31、ner, or a birth date as their password. Tend to be (24) ______computer users and have strong (25) ______. “They choose password that symbolize people or events with emotional value,” says Petrie. One third of respondents were “fans”, using the names of athletes, singers, movie stars, or sport teams.
32、 Petrie says fans are young and want to (26) ______the lifestyle represented by a celebrity. Two of the most popular names were Madonna and Homer Simpson. The third main group of participants are “cryptic” because they pick (27)_______ password or a random string of letters, numerals, and symbols. P
33、etrie says cryptic are the most security-conscious group. They tend to make the safest but least interesting choices. Password are revealing for two reasons. First, because they are invested (28)_______. “Since you are focused on getting into a system, for example your email account, you’re likel
34、y to write down something that comes quickly to mind, ”says Petrie. “In this sense password (29) ______ things that are just below the surface of consciousness. Also, to remember your password, you pick something that will stick in your mind. You may unconsciously choose something of particular em
35、otional (30)_______. Part II Vocabulary , Grammer&Culture (15 marks) There are 15 incomplete sentences in this section. For each blank there are four choices marked A, B, C and D. Choose the one that best completes the sentence. Then mark the corresponding letter on the answer sheet with a sing
36、le line through the centre. Section A Vocabulary and Grammar (10 marks) 31. When ______ economy gets stronger, more people improve their looks as _____ way to show off their money. A. / ; a B. an ;the C. the ; a D. the; / 32. Even though John has been tol
37、d about the _____ he was still _____ it. A. secret; taken to B .dilemma; taken by C. idea; taking in D. hoax; taken in by 33. While some people are content_____ a cup of coffee and taste, others remain faithful_____ the eighteenth-century breakfast. A. with; to B. for; to C. for
38、 with D. with; for 34. The traditional and slow pace of Ireland makes it ______ popular with holidaymakers of all ages. A. that most B. quite more C. much more D. far most 35. Research shows that hidden cameras, ______ highly visible ones, may be the best way to slow down traffic.
39、A. for the sake of B. rather than C. in spite of D. regardless of 36. By he end of this year, 30,000 students, ______ degrees by the Open University, to enable them ______ a university degree at home. A. will get; award B. have got; to award C. will h
40、ave been awarded; to get D. will be awarded; get 37. There are various ways _____ people who suffer from insomnia can improve their sleep patterns. A. in that B. in which C. on which D. by which 38. If the manager ______ the files more carefully, he would have known that we ____
41、an enormous effort to complete the project. A. checked; have made B. had checked; have made C. has checked; made D. had been checked; are making 39. ----How do you find your visit to exhibition, Jack? ----________. ----Really, so I would like to go there too. A. Oh, so w
42、onderful B. By taking a No.18 bus C. No, it is so beautiful D. Yes, it is 40. ----Excuse me, Mrs Bell, do you have a minute? ----Of course, John. How can I help you? -----Well, my English vocabulary is so limited.______ ------Well, all learners are different
43、and learn in different ways. What do you like doing? -----I like writing. -----So I think it’s easier to learn words if you write them down. A. How can you improve your oral English. B. I don’t like reading. C. You can help me if you like. D. What’s the best way to memorize English words
44、 Section B culture (5 marks) 41. ---- The society is so complicated. You should learn to separate the sheep from the goats. ---- Thanks for your kindness. What does separate the sheep from the goats mean? A. be different from others B. distinguish good from evil C. come t
45、o the point D. engage in social activities 42. The Welsh national symbol is the leek or the daffodil, and the symbol for Scotland is _______. A. the thistle B. the shamrock C. the rose D. the lily 43. On December 1
46、0th, 1948, the General Assembly of the United Nations adopted ________. In part, it was in response to the atrocities of World War II. A. the Communist Manifesto B. the Act of Union C. the Universal Declaration of Human Rights D. Declaration of Independence 44. The essence of Renaissance, the m
47、ost significant intellectual movement, was_____. A. geographical exploration B. religious reformation C. harmony D. humanism 45. ______ is a private Ivy league research university, which is considered as the oldest institution of higher learning in the United Sta
48、tes. A. Stanford University B. Harvard University C. Yale University D. Princeton University Part III Cloze (10 marks) Read the following passage and fill in each blank with one word. Choose the correct word in one of the following three ways: accordi
49、ng to the context, by using the correct form of the given word, or by using the given letters of the word. Remember to write the answers on the answer sheet. We always think “it will never happen to me” but disasters can strike any time anywhere. How would you cope if the (46) _____ (thinkable) hap
50、pened? According to experts, people (47) _____ (catch) up in disasters tend to fall into three categories. About 10%to 15% remain calm and act quickly and efficiently. Another 15% completely panic, crying and screaming. But the vast (48) maj______ of people do very little. They are stunned and con
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