【正文】 d activities occur in the . every year. A study from the Center for Injury Research and Policy showed that as many 40% of high school athletes return to playing before they should. The AMA’s new guidelines should help to bring those numbers down. 8. Why does the AMA set the new guidelines? A. To raise safety standards of sports. B. To protect athletes from concussions. C. To set rules for health care evaluation. D. To help players return to the game quickly. 9. What should young athletes who may have a concussion do? A. Avoid using the head. B. Leave the field forever. C. Get treatment in time. D. Switch to another sport. 10. What is paragraph 4 mainly about? A. What a concussion is. B. What causes damage to brain cells. C. How the CDC works. D. How a concussion can be prevented. 11. Which of the following is the best title for the text? A. Rules for Safer Play B. Sports Injuries in the USC. Advice to Athletes D. New Policies for Doctors DOrganic food is very popular. It is also expensive. Some organic food costs twice as much as nonorganic food, but new parents and pet owners are willing to pay up to 200% more for organic food. However, there are people who think it is a waste of money. There is one main difference between organic and nonorganic food. Organic farms do not use agricultural chemicals, such as pesticides (殺蟲劑). In many countries organic foods have special labels. These guarantee that the products are natural. Some people think organic means locally grown. Originally this was true. Over time organic farming became more difficult. The demand for organic food grew larger than the supply. Small panies had to sell out to large panies. There weren’t enough organic ingredients (原料), such as grain and cattle. This made it difficult for many organic panies to stay in business. Today, many large panies have an organic line of products. Is organic food more nutritious? This is part of the debate. Many farmers and consumers believe it is. They think agricultural chemicals cause health problems such as cancer. Many health professionals disagree. Few studies prove that organic foods prevent health problems. Health specialists worry more about bacteria (病毒), such as E. coli and salmonella. These can get into contact with organic and nonorganic food. Doctors remend washing produce very carefully. Handling meat carefully is important too. Most people agree that naturally grown food tastes better. Is tastier food worth the extra money? This is a matter of opinion. Whether it is healthier or not may require more research. However, organic consumers argue it is better to be safe than sorry. 12. What is probably the major concern of organic food consumers? A. Price. B. Safety. C. Freshness. D. Variety.13. What is the doctor’s suggestion? A. Grow your own food. B. Reduce the use of pesticides. C. Make sure the food is clean. D. Buy large panies’ products. 14. Which of the following do most people agree on organic food? A. It tastes better. B. It is easier to grow. C. It contains more fat. D. It is more nutritious. 15. Where does this text probably e from?A. A recipe book. B. A chemistry paper. C. A medical report. D. A health magazine.第二節(jié) (共5小題。選項中有兩項為多余選項。 每小題1分，滿分15分)閱讀下面短文，從每題所給的A、B、C、D四個選項中選出可以填入空白處的最佳選項。On the morning of her grandson’s we