问题 判断题

在大型发电机保护中,因为定子绕组设有定时限、反时限对称过电流保护,所以励磁绕组就不必再设过负荷保护

答案

参考答案:错

解析:

知识点:元件保护

完形填空

Directions: Read the following passage. Answer the questions according to the information given in the passage.

Energy drinks are now available (可购得的) in nearly every store and they promise to make people feel more energetic and think more clearly. these products have names like Red Bull , Monster, 5-Hour Energy and so on, which appeal mainly to young adults and teenagers.

Chad is a medical researcher who got interested in studying energy drinks because of the explosion (猛增) in their popularing in the last few years.He says he and his research team have found three major things about energy drinks. One: there are huandreds of brands of energy drinks in most major countries. Two: the drinks are not clearly labeled (用标签标明) with enough information such as what are contained in the drink, the date and even t names of their makers. And three: the amount of caffeine ( 加啡因) varies greatly. Some contain as little as fifty milligrams, others as much as five hundred.

Some energy drinks contain a mixture of ingredients (配料) listed as an “energy blend”. But scientists do not know a lot about them and how they interact with each other. These ingredients may be dangerous for people who drink them. What is worse , he says, there is no listing of the amount of each ingredient. Some makers of energy drinks do provide warnings. For example, a popular energy drink warns against use by people who are nursing a baby or under the age of twelve.

Chad and his team suggest labeling energy drinks with the amount of caffeine and other ingredients clearly in order to protect the health of the public. And the government officials are considering their suggestions now.

1. What do the energy drinks promise to do? (no more than 10 words)

______________________________________________________________

2. Why did Chad get interested in studying energy drinks? (no more than12 words)

_______________________________________________________________

3. Who are the main users of energy drinks? (no more than5 words)

_______________________________________________________________

4. Please explain the underlined word “interact” in English. (no more than8 words)

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完形填空 (共20小题;每小题1.5分,满分30分)

Travel in most of Europe is easy. An agreement between the 15 European Union countries in 1995 means that citizens from most European countries can travel across borders without needing a visa.

Each of the 12 countries that has   36   its own currency (货币) to accept the euro has its own   37  . So how have these countries been able to   38  ? And how has each country prepared for the birth of this new currency? Firstly, many people in Europe,  39  in west Europe, speak English. The European Convention on Human Rights says that all people have a  40  to learn and use their traditional language.

But at the European Central Bank in Frankfurt, Germany, the official language for all business is   41  . And every European country requires students to study English for many years at   42  . Other languages may be offered, too. But English is a   43   .

"If I meet someone, I try Spanish. Then I try   44  . And if it's not   45   , I say "Hello". That' s the signal, and we communicate no matter what country we come from." Said Maria Ortega, a ski instructor in the Pyrenees,   46   French and Spanish are mainly used.

Each country has its own   47   culture. Though the French may be famous for their 1,000 types of cheese and the Greeks are known to  48   olive oil on everything, most people in Europe like  49  strong coffee on their breakfast table. Another drink is held  50  throughout the continent. Europe's vineyards(葡萄园) may be famous, but the real drink of Europe is   51  . Europeans consume tons of it.

Football, of course, also helps to    52    all of Europe. Many fans are obsessed (着迷) with   53   and with international stars. David Beckham, of England' s Manchester United, is a hero to Europeans in the same   54   that Michael Jordan is to   55   .

36. A. given up                    B. ended up          C. agreed with                   D. started with

37. A. money                B. right                             C. border                          D. culture

38. A. meet                          B. unite                            C. travel                            D. accept

39. A. specially         B. generally             C. particularly                  D. normally

40. A. chance                 B. right                             C. wish                              D. place

41. A. French                  B. German                 C. English                     D. Spanish

42. A. school                  B. work                             C. home                            D. table

43. A. subject                 B. tool                         C. need                          D. must

44. A. English                 B. French                    C. German                  D. Greek

45. A. listening                    B. spoken                   C. working                   D. heard

46. A. as                          B. where                     C. since                             D. whose

47. A. food                           B. art                          C. drink                              D. life

48. A. add                             B. spread                    C. spend                            D. put

49. A. a kind of          B. a lot of                  C. a cup of                D. a taste of

50. A. in common       B. in general                C. in need                     D. in special

51. A. beer                           B. wine                             C. coffee                           D. soup

52. A. attract            B. tie                                C. play                          D. watch

53. A. opera                         B. bread                           C. music                            D. football

54. A. direction                   B. level                             C. way                          D. game

55. A. basketballers           B. British              C. athletes   D. Americans