44. In line 7, the underlined word “deteriorating” refers to .
(A) enormous
(B) worsening
(C) organized
(D) delightful

40. (A) be (B) being (C) are (D) were

41. According to the passage, what will happen to the dogs if they are sent to the shelters and not adopted? (A) They will be killed twenty days later. (B) They are trained to make a countdown. (C) They are doomed to die after twelve days. (D) All of them die within twelve days.

42. According to the passage, the purpose of the movie is to . (A) shock the audience with the horrible environment of shelters. (B) make all the viewers of the movie burst into tears. (C) improve the facilities to light up the dark animal shelters. (D) convey the correct attitude of raising animals.

43. Which of the followings is NOT the methods we can use to help save the stray animals? (A) Informing others of the concept of “adopting instead of abandoning animals” on the Internet. (B) Purchasing animals from the pet shops to decrease the number of stray animals. (C) Giving money to help the Animal Association or similar organizations. (D) Simply going to shelters to adopt stray animals to avoid their death.

45. What can we infer from the passage? (A) Some animals inside the shelters were raised but later deserted by their owners. (B) The tragedy of the stray animals will certainly never happen again. (C) It is shameful to cry when seeing the poor animals in the documentary. (D) It is possible for a person to lead to some changes of the current situation.

46. What is Bitcoin? (A) It is one of the traditional currencies. (B) It is an engineering software. (C) It is the latest application on the cell phones. (D) It is the digital coin mainly used on the Internet.

47. Which of the followings is NOT the advantages of Bitcoins? (A) Users don’t need to go to the bank for transactions. (B) Never will your account be frozen. (C) Users never worry about the danger of being stolen. (D) The processing fees are relatively low.

48. According to the passage, what is Bitcoin mining ? (A) An action of getting the precious metal out of the underground. (B) Earning a large sum of prize money by joining mathematical contests. (C) Using your computer hardware to help do calculations and earn money. (D) A training to increase your peace of mind and profit from it.

49. In line 5, the underlined word “generated” refers to . (A) produced (B) doubted (C) bought (D) denied

50. Which of the following statement is NOT correct? (A) Bitcoins were created 5 years ago by an engineer. (B) It is unlikely for us to live more than 3 months only by using bitcoins. (C) The buying and selling bitcoins can be done totally through the Internet. (D) The author holds a positive attitude toward the future of bitcoins.