题目

地震的震级R与地震释放的能量E的关系为．2008年5月12日，中国汶川发生了8.0级特大地震，而1989年旧金山海湾区域地震的震级为6.0级，那么2008年地震的能量是1989年地震能量的         倍． 答案：1000 解析:缺词填空（5分）Do you always agree with your teacher? Sometimes you might have a different a 1. to a Maths problem. Or maybe they scold(责备) you when you don’t think you did anythingw 2. .What do you do then? A story on sina.com said that more and more students choose tos 3. out and sometimes even shout(喊叫) at their teachers.It’s i 4. for students to say what they think. In the past, few Chinese students dared(敢于) to speak d 5. to their teacher. It was an unwritten rule(不成文的规定) that what the teachers said is always right. But now students are b 6. to think more of themselves and dare to say what they think right.But students should choose the right way to speak out. We should respect(尊重) teachers. They are older than you and know more things. So, never use i 7. words when speaking to them. And don’t make them u 8. when you don’t agree with them.Try to find the right time to talk to your teacher. For e 9. , talk about the problemafter class. R 10. to talk about it in a friendly way.