21. Overall, what sort of picture is painted of the future effects of global warming? A. the disastrous B. the potentially disastrous C. relatively optimistic D. on balance things are going to be satisfactory 22. What is this passage? A. report B. a preview of a report C. an article describing a response to a report D. an article previewing a report 23. Mr. David Melville suggests that in future more food could be imported into Hong Kong. He thinks these measures could be _ _ _ _ _ _ _. A. efficient B. sufficient C. insufficient D. inefficient 24. The main point of paragraph 3 is to describe _ _ _ _ _ _ _. A. the effects of changes in the climate of China on food production B. future changes in the climate of China C. the effects of changes in the climate of China on the growing season D. projected future changes in the climate of China25. The main point of paragraph 5 is to describe _ _ _ _ _ _ _. A. global warming B.the effects of global warming C. the causes and projected effects of global warming D. the causes and effects of global warming 26. Why does the writer add the information in square brackets in paragraph 5? A. because the quote is from a second language user whose command of English is not perfect. B. because, although they are not part of the original quote, the additional information given is necessary to understand the statement. C. because the writer is quoting from another source. D. because the writer wants to emphasize the meaning of these words. 27. In paragraph 7, which point is Mr. Melville NOT making? A. suggesting that there is a potential disaster in Hong Kong B. suggesting that reclamation areas are at risk C. criticising current safeguards D. making a call for action 28. How would you describe the Dr. Leeman's attitude towards China? A. mainly favourable B. critical C. supportive in theory D. admiring 29. In paragraph 2 of "negated" is closest in meaning to _ _ _ _ _ _ _. A. made possible B. made ineffective C. reduced D. paid for 30. In paragraph 7, "depleted" could be replaced by which of the following? A. reduced B. poor C. the decaying D decimated.
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