题目

观察图形，解答问题：   （1）按下表已填写的形式填写表中的空格：图①图②图③ 三个角上三个数的积1×(－1)×2=－2(－3)×(－4)×(－5)=－60 三个角上三个数的和1＋(－1)＋2=2(－3)＋(－4)＋(－5)=－12 积与和的商－2÷2=－1, （2）请用你发现的规律求出图④中的数y和图⑤中的数x． 答案：解: ⑴图②：(－60)÷(－12)=5  图③：(－2)×(—5)×17=170， (－2)＋(—5)＋17=17， 170÷10=17 .          ⑵图④：5×(—8)×(—9)=360 5＋(—8)＋(—9)=－1             y=360÷(－12)=－30. 图⑤：， 解得      Success never comes easy. How many of you have heard of successful people who haven’t made any effort? People often have to overcome failures 【1】 they can accomplish something great. They usually don’t find success from the very beginning.Van Gogh sold only one painting during his lifetime, but this didn’t stop him from completing over 800 painting. Thomas Edison 【2】 (fire) from his first two jobs for lack of competence. Later, as an inventor, he tried 1,000 times 【3】 (create) the light bulb, without success. He was confident in 【4】 (he), and【5】 (eventual) he did success. When 【6】 (ask), “How did it feel to fail 1,000 times?” Edison replied, “I didn’t fail 1,000 times. The light bulb was 【7】 invention with 1,000 steps.These successful people have set good 【8】 (example) to us. They wouldn’t have achieved their success if they 【9】 (abandon)their dreams. Believe in yourself and try your best, and success will not be far 【10】 you.