题目

（1）解方程：；（2）分解因式：． 答案：【答案】（1） （2）【解析】（1）去分母，方程两边都乘以，注意符号后化为整式方程可得答案．（2）利用提公因式与公式法分解即可．解：（1）去分母得： 经检验：是原方程的根，所以原方程的根是 （2）The summer vacation is over. It is true that time always flies fast. During the vacation , the weather was bad and I could not do much work, but I live happily. As the afternoon was hot, I did my work in the morning. I used to get up at 6:30 and take a walk in the garden for half an hour. After breakfast, I began reading English and Chinese and did some exercises in maths. This took me three hours or more. I worked quite hard and made good progress. I spent the afternoon outside. I went to swim and it was very funny. I would not go home until it was five or six o’clock. Sometimes a friend would come to see me and we would spend some hours listening to music. In this way, I spent my vacation happily. And I not only studied well but also became a good swimmer. Now I am in good health and high spirits.60. What does the text tell us?A. How the writer spent his summer vacation.B. What the weather was like in the summer.C. When the writer got up in the morning.D. Where the writer took a walk.61.The writer spent most of the afternoon _______.A. listening to music    B. visiting his friends    C. walking in the garden   D. swimming 62. The writer had very good summer holidays because he ______.A. worked very hard and made good progressB. learned to swim and did his work wellC. got up early and went home lateD. liked swimming better than studying63.Which of the following is NOT true?A. The writer made progress in his lesson.B. The writer took a walk for half an hour before breakfastC. The writer began studying as soon as as he got up.D. The writer spent more time swimming than listening to music.