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1、七年级上册英语课堂练习册参考答案与提示（人教版） .doc七年级上册英语课堂练习册参考答案与提A、当a0时示(人教版) 3.确定二次函数的表达式：（待定系数法）puter games8.a photo of my family 9.杰克的笔记本 10. 请求你的老师2.点与圆的位置关系及其数量特征：帮助?. 1.F 2.T 3.F 4.T 5.F?. l.C 2.D 3.B 4.B 5.C 6.B 7.A 8.C 9. A 10. 4.坡度：如图2，坡面与水平面的夹角叫做坡角坡角的正切称为坡度 (或坡比)。用字母i表示，即B?. l. Is this your family photo? 2.
2、 Is this your mother? 3. Is this your brother? 4. rs. BrootherKelsey4. grandfatherNick 5. cousin Mona 6(sister Anna?. (A) l.a car 2.by car 3.e is Jane. 2. His daughters name is Julia. 3. He is te is Mark.?. (A)l. phone 2. name 3. e? Please call 10.圆内接正多边形Mary at 63589590. 2. My name is Mike. I lost
3、my schoolbag;. Its black. Please call me at 69035461.Unit 4 y toy is on the bed. My shoes are under the bed. My clock is on the desk. Those are my books. They are on the floor. y Favorite Food I have three meals a day. For breakfast, I like hamburgers, eggs and some milk. I have rice, chicken and ve
4、getables for lunch. For supper, I have salad, vegetables, meat, broccoli and dessert. I uch are these socks?【基础达标】?. 1. trousers 2. colors 3. uch are they 5. Here you are?. 1.B 2.C 3.D 4.B 5.B 6.A 7.C 8.A 9. D 10. A【综合运用】?.1. socks 2. dollars 3. shoes 4. y favorite subject is science.【基础12.与圆有关的辅助线达
5、标】?.1. your, favorite subject 2. Because 3. onday?.1. color, like 2. onday 3.Tuesday 4.usic 5. Science【单元能力测试】?.1. my favorite subject 2. the next day 3. Science teacher 4.for tath 6. thanks for your e-mail 7. after class 8. on Tuesday 9. Chinese history 10. have lunch?.1. subjects 2.free 3. useful
6、4. Science 5.classmates 6.onday. She goes sming on Tuesday and plays soccer on Thursday. She also likes different instruments. She plays the piano on id-term ExamI. 1.B 2.D 3.A 4.A 5.D 6.A 7.C 8.A 9. B 10. D?.1.A 2.C 3.B 4.B 5.C 6.B 7.D 8.C 9.B 10.B?. 的图象可以由yax2的图象平移得到：（利用顶点坐标）(A) l.C 2.D 3.C 4.B 5.
7、B (B) 6.D 7.B 8.C 9.C 10.B?. 1. my tily photo 3. are his keys, on the sofa 4. play tennis 5. sounds interesting 6. him at 82538597?. 1. Sunday 2. but 3. dont 4. puter 5. movies?. ( A) 1. Are these your parents? 2. This is my father. 3. is this your grandfather? 4.Is she a student:/ 5. You are ber? 1
8、0. y school things are in my school bag. My school bag is under the bed. Look ! My family photo is on the I. l.B 2.C 3.D 4.A 5.C 6.C 7. C 8. B 9. A 10. D 11. D 12. A 13. D 14. A 15. C 16. A 17. A 18. A 19. D 20. C?. l.A 2.D 3.C 4.A 5.B 6.B 7. C 8. C 9. A 1、第一单元“加与减(一)”。是学习20以内的退位减法，降低了一年级上学期孩子们学习数学的
9、难度。退位减法是一个难点，学生掌握比较慢，但同时也是今后竖式减法的重点所在。所以在介绍的：数小棒、倒着数数、凑十法、看减法想加法、借助计数器这些方法中，孩子们喜欢用什么方法不统一要求，自己怎么快怎么算，但是要介绍这些方法。10. B ?. (A)1.C 2.D 3.D 4.A 5.C (B) 6.A 7.D 8.B 9.C 10.A?. 1.says 2.speech 3.sale 4.any 5.herself 6.is 7.has 8.Playing 9.te, clean room, etimes on Saturdays. 9. She has a lot of books and n
10、eeds a large desk. 10. Sometimes they go shopping.?. ( A) l. Hoe it isnt good for my health. 5. (1)二次函数yax2的图象：是一条顶点在原点且关于y轴对称的抛物线。是二次函数的特例，此时常数b=c=0.About eight hours. (B) 6.y friend. His birthday is on Oct. 29th. He is thirteen years old. He is from England. He likes singing and playing the 0 抛物线与x轴有2个交点；piano. He joins a music club. His favorite subject is science. He wants to be a scientist.