eir range of activities will help the way their brains work. Gene Cohen, acting director of the same institute, suggests that people in t heir old age should engage in mental and physical activities individually as wel as in groups. Cohen says that we are frequently advised to keep physicall y active as we age, but older people need to keep mentally active as well.Those ho do are more likely to maintain their intellectual abilities and to be general ly happier and better adjusted The point is you need to do both, Cohen says, Intellectual activity actually influences brain-cell health and size. 36. People who are cognitively healthy are those A)who can remember large amounts of information B)who are highly intelligent Cwhose minds are alert and receptive D)who are good at recognizing different sounds 37. According to Fozard' s argument, people can make their brains work more ef A)constantly doing memory work B)taking part in various mental activities C)going through specific training D)making frequent adjustments 38. The findings of james and other scientists in their work B)have been challenged by many other experts D)are practised by the researchers themselves 39. older people are generally advised to A)keep fit by going in for physical activities B)keep mentally active by challenging their brains C)maintain mental alertness through specific training D)maintain a balance between individual and group activities 40. What is the passage mainly about? A)How biochemical changes occur in the human brain B)Why people should keep active not only physically but also mentally. C)How intellectual activities influence brain-cell health D)Why people should receive special mental training as they age Part VoCabulary and Structure(20 minutes) Directions: There are 30 incomplete sentences in this part. For ea ch sentence there are four choices marked a), B), C)and D). choose the oNe thatth eir range of activities will help the way their brains work. Gene Cohen,acting director of the same institute,suggests that people in t heir old age should engage in mental and physical activities individually as wel l as in groups. Cohen says that we are frequently advised to keep physicall y active as we age,but older people need to keep mentally active as well.Those w ho do are more likely to maintain their intellectual abilities and to be general ly happier and better adjusted.“The point is ,you need to do both,”Cohen says, “Intellectual activity actually influences brain-cell health and size.” 36.People who are cognitively healthy are those____ . A)who can remember large amounts of information B)who are highly intelligent C)whose minds are alert and receptive D)who are good at recognizing different sounds 37.According to Fozard’s argument,people can make their brains work more ef ficiently by ____ . A)constantly doing memory work B)taking part in various mental activities C)going through specific training D)making frequent adjustments 38.The findings of James and other scientists in their work____ . A)remain a theory to be further proved B)have been challenged by many other experts C)have been generally accepted D)are practised by the researchers themselves 39.Older people are generally advised to ____ . A)keep fit by going in for physical activities B)keep mentally active by challenging their brains C)maintain mental alertness through specific training D)maintain a balance between individual and group activities 40.What is the passage mainly about? A)How biochemical changes occur in the human brain. B)Why people should keep active not only physically but also mentally. C)How intellectual activities influence brain-cell health. D)Why people should receive special mental training as they age. Part ⅢVocabulary and Structure (20 minutes) Directions: There are 30 incomplete sentences in this part.For ea ch sentence there are four choices marked A),B),C) and D).Choose the ONE that be