46. What is the article mainly about?
(A) A problem in technology.
(B) Wild animals.
(C) The origin of language.
(D) The human brain.

42. Which of the following is closest in meaning to the word “insatiable” in paragraph 2? (A) Admirable. (B) Subordinate. (C) Unlimited. (D) Defensive.

43. Which regulation on sugar is NOT mentioned by Paul van der Velpen? (A) Having the same regulations as the ones on alcohol and tobacco. (B) Setting up legal limits on the amount that can be added to processed food. (C) Not allowing schools to sell sweets and soft drinks. (D) Having health insurance companies fund addiction therapy for their obese clients.

44. What can be inferred about the use of sugar? (A) The food industry has decreased the use of sugar in their products. (B) The use of sugar can be better controlled by addiction therapy. (C) The obese people in Denmark will consume more sugar in the future. (D) The use of sugar can be continuously discouraged by keeping diets.

45. Which of the following is the most appropriate title to the article? (A) Why Sugar Makes Us Fat? (B) Decoding Your Sugar Addiction (C) Stopping Addiction to Sugar: Willpower or Genetics? (D) Sugar Addiction: The Most Dangerous Drug of the Times

47. Which of the following is closest in meaning to the word “convey” in paragraph 2? (A) Fasten. (B) Regulate. (C) Analyze. (D) Express.

48. Which of the following statements is NOT true? (A) Normal children learn the whole system of language from hearing others using it. (B) Other animals like chimpanzees and bonobos can express thoughts and feelings like human beings. (C) The attempts to teach apes some version of human language are limited to some fundamental results. (D) Animal communication system is used to express something immediately present in space and time.

49. The last paragraph is ________. (A) an example that supports the conclusion (B) a warning to the readers (C) a summary of the whole article (D) a series of questions and answers

50. What is the conclusion of the passage? (A) Every human language has a vocabulary of thousands of words, built up from several dozen speech sounds. (B) Animal communication systems typically have at most a dozen distinct calls. (C) The properties of human language are unique in the natural world. (D) Human language can express thoughts on an unlimited number of topics.

1. Thank you very much for helping me ______ my bicycle yesterday. You really gave a hand. (A) remind (B) repair (C) revise (D) repeat

2. My parents and I often______ to clean up the beach with neighbors on weekends. We feel happy that we can do something for the Earth. (A) donate (B) survive (C) vote (D) volunteer