题目

因式分解： a3﹣6a2+9a 答案：原式=a（a2﹣6a+9）=a（a﹣3）2；Dear Madam,Welcome back to school. My child is so happy to be in your class this year. We know you care so much about your students. I want to tell you a little bit about my child. Although he really loves to learn, he is somewhat anxious about being back in school again.My child is thought to be gifted and that has brought some unexpected challenges to him and our family. To many people, being gifted means he will do very well in school, but that hasn’t always been true for him. He is just a kid thinking differently, and he sometimes struggles in school. Last year, school wasn’t easy for him for a few reasons.He may be ahead a few grade levels in some subjects, but not in all subjects. He just doesn’t do better in all areas all the time. And although he may seem older than his years, he doesn’t always behave like you would think he should. I’m sure you know how gifted children can be emotionally immature –that is exactly my kid.Also, he can be really intense in class when you are teaching one of his favorite topics. He may raise his hand often and constantly talk about what he thinks about it. I’ll apologize in advance because he will also likely challenge you on information or facts which he feels are not quite right especially when it’s a topic he is hooked on. He is not being impolite and he isn’t just being a know-it-all, or a show-off, he is really just very excited to be learning about a subject he feels strong about. He just gets carried away!Last year, he was teased about looking like a know-it-all in school by some of his classmates, which hurts him A LOT. Being laughed at is part of his fear of going back to school. He fears being called a show-off at school and he feels like he doesn’t fit in. His teacher said he often kept to himself and chose to work alone. I know as a teacher, you are incredibly busy, but could you keep an eye out for anyone teasing him or if he seems to be keeping to himself too much?Lastly, his therapist（理疗师） mentioned that because of the being laughed at and maybe because he was bored lastyear in school, he is showing signs of becoming an underachiever. Please let me know if his grades start slipping.Thank you for taking the time to read and understand about my child. Don’t hesitate to call or email me if there are any problems with him at school. Believe me, we know very well how sensitive, emotional and intense he can be.I hope you have a wonderful school year!Sincerely,Mom of a Gifted Child1.From the passage, we learn that the author’s son________.A.fails to get along well with classmates B.has fallen behind the other studentsC.has lost interest in learning D.is rude to the teachers2.What does the underlined sentence in Paragraph 4 mean?A.He has been taken away from school. B.He is too excited to control himself.C.He is so absorbed in observing. D.He has been overpraised.3.Why does the author write the letter?A.To ask the teacher to reduce children’s burden. B.To call on the school to stop school teasing.C.To suggest that his child has special needs. D.To explain how gifted her child is.