题目

绿色能源不会产生或残留对环境造成污染的物质,下列能源中可称为绿色能源的是 ( )A. 煤 B. 石油 C. 风能 D. 天然气 答案：【答案】C【解析】煤、石油、天然气在燃烧过程中都会产生二氧化碳和一氧化碳（现实上不可能完全燃烧）等，会对环境造成污染，所以ABD不是绿色能源；风能在利用过程中不会对环境造成污染，所以它是绿色能源。故选：C。In America, when the eighth graders leave the middle school, they are often worried about moving to the high school. It is a hard time for them, but it can be an exciting one as well. To make it easier, students need to get familiar with their school. Even though they’ve done this already in the middle school, it’s still important to find where their classrooms are. Most schools take students to the high school for a visit at the end of their eighth grade year. And, most schools also have a freshman (新生) speech for parents and students before the first year begins. Sometimes the main office will give away a map of the school. This can help students and parents to find different places in the school. One way to know your high school more and make new friends is to join a club or play a sport. Schools often offer chances to join different clubs and sports. Fall activities begin in August before the first day of school. If you are not interested in sports, there are clubs for any interest, such as drama, dance, chess, photography, community service, etc. These clubs allow students from different grades. By joining an activity, students can find new friendships, not to mention improving their chances in future college applications (申请). The school office will have a list of activities offered at the school and information on how to join them.        What’s more, to have a great start to a high school year, students can write down some of their worries, and ask for help from teachers and school workers. 56．According to the text, most students feel ________ when entering the high school. A. excited                     B. nervous              C. lonely    D. disappointed 57．When do many schools take students to visit their new high school? A. Before the eighth grade year starts. B. Right after the high school year starts. C. At the beginning of the new term in the high school. D. At the end of their eighth grade year 58．What is the purpose of this text? A. To tell the new students how to learn in high school B. To introduce new schools. C. To give the teachers some advice. D. To give advice to new high school students. 59. What would be the best title of the text? A. Finding a most suitable school B. Making high school life colorful C. Entering high school more easily. D. Paying attention to high school education.