How time flies! This semester is coming to an end. Now I have begun to review nervously. I must start working hard. Because I don't work hard, my grades will not go up and I will be scolded by my parents. If I am scolded by my parents, I will lose confidence. If I lose confidence, I will not be able to read well. If I can't read well, I won't graduate. If I can't graduate, I won't find a good job. If I can't find a good job, I can't make money. If I can't make money, I can't pay taxes. It will be difficult for the state to pay teachers' salaries, and teachers will have no intention to teach. If it affects the future of the motherland, it will be difficult for China to take off and the Chinese nation will degenerate into a barbaric nation. The United States will suspect that China has weapons of mass destruction and go to war with China. The third world war will break out, and the weak side will use nuclear weapons, which will destroy the natural environment, destroy the natural environment, break a big hole in the atmosphere, raise the temperature of the earth, melt the icebergs at the poles, raise the water level of the earth, and drown all mankind. Because this is related to the safety of life and property of all mankind, I will review well in the next few days, get good grades in the exam, and prevent tragedies from happening.