The phenomenon of may be the factor to cause the fewest changes in the English language in recent years.

未分类题请阅读Passaqe l，完成第21～25小题。Passage 1

未分类题请阅读Passage l，完成第21—25小题。Passage 1Move over Methuselah. Future generations could be living well into their second century and still doing Sudoku， if life expectancy predictions are true. Increasing by two years every decade，they show no signs of flattening out. Average lifespan worldwide is already double what it was 200 years ago. Since the 1980s， experts thought the increase in life expectancy would slow down and then stop， but forecasters have repeatedly been proved wrong.The reason behind the steady rise in life expectancy is 'the decline in the death rate of the elderly'， says Professor Tom Kirkwood from Newcastle University. He maintains that our bodies are evolving to maintain and repair themselves better and our genes are investing in this process to put off the damage which will eventually lead to death. As a result， there is no ceiling imposed by the realities of the ageing process. 'There is no use-by-date when we age. Ageing is not a fixed biological process，' Tom says.

未分类题The underlined phrase 'con job' in Paragraph 4 means__________. 查看材料

未分类题The underlined terms 'weather porn' in Paragraph 6 and 'election porn' in Paragraph gimply that__________. 查看材料

未分类题根据题目要求完成下列任务。用中文作答。阅读所给材料，回答下列三个问题：（1）这两份材料分别属于哪种语篇类型?（6分）（2）这两份材料分别适合于哪种课堂教学?说明理由（至少写出两个要点）。（12分）（3）分析教师选用文本材料时需要考虑的基本要素（至少写出三个要点）。（12分）材料1Tom: Hello Alice. I‘m interested in your work saving birds! What do you think is the most difficult part of your work?Alice: Well ... I suppose it‘s saving wild birds covered in oil. That‘s the most difficult of all.Tom: How does that happen?Alice: The oil comes from boats. It floats on the water and covers the bird‘s feathers when they swim through it.Tom: That sounds terrible. What do you do about it?Alice: The first thing we do is to make sure the bird hasn‘t tried to clean itself with its beak.As it does so， the bird eats some oil and becomes sick.Tom: Oh dear! Do the birds always die?Alice: Sometimes ... but we try to save them. Birds use their feathers like a raincoat to keep out cold water. When feathers are covered in oil， they stick together and a bird‘s skin gets cold in the water. So without help the bird would die of cold!材料2Scientists have discovered that when chimpanzees have stomach pains， typically because of intestinal parasites， they look for a certain plant to eat， Lippea. It is common in the jungles where chimpanzees live， and it contains chemical substances effective against many parasites.Lippea is not the only natural medicine in the chimpanzees‘ cabinet. They may actually use up to thirty different plants——for different problems. Interestingly， the local people make use of many of the same plants for medical purposes. It is almost certain that chimpanzees discovered these herbal remedies before humans.