年广州市初中毕业生学业考试（ years of Guangzhou junior high school graduates academic examination）.doc

009年广州市初中毕业生学业考试（009 years of Guangzhou junior high school graduates academic examination） Junior high school students academic examination in Guangzhou in 2009 Mathematics 150 points, the test time 120 minutes A multiple-choice question, (the total of 10 questions, each question 3 points out of 30 points. For each question there are four options, one is in line with the requirements of the subject). 1. the pattern that can be obtained by translating the pattern shown in Fig. 1 is (A) 2. in Figure 2, AB, CD, AB and CD respectively intersect with the line, if the angle is 1=130 degrees, angle 2= (C) (A) 40 degree (B) 50 degree (C) 130 degree (D) 140 degree 3., in the real axis position as shown in Figure 3, the size and the (C) (A) (B) (C) (D) cannot be determined The minimum value of the two 4. function is (A) (A) 2 (B) 1 (C) -1 (D) -2 5. Figure 4 is the temperature change map of a day in Guangzhou. According to figure 4, the following statement is wrong (D) (A) the maximum temperature is 24 degrees centigrade on this day (B) the difference between the maximum and minimum temperatures on this day is 16 degrees centigrade (C) the temperature between 2 and 14 is increasing gradually (D) the temperature between 14 and 24 is gradually decreasing on this day 6. the following calculations are correct (B) (A) (B) (C) (D) The following 7. functions, the range of variables is greater than or equal to 3 is (D) (A) (B) (C) (D) 8. only one of the following regular polygonal tiles can be covered on the ground (C) (A) positive ten sided (B) positive eight sided shape (C) regular hexagon (D) regular pentagon 9. the radius of the bottom of the cone is 5cm, and the area of the side is 65 PI cm2. The value of the sin theta is (B) when the generatrix of the cone is high and the angle of the height is theta (as shown in Figure 5) (A) (B) (C) (D) 10. in Figure 6, in ABCD, AB=6, AD=9, BAD to BC angle bisector point E, DC line in F, BG group of AE, G, BG=, pedal, perimeter for Delta CEF (