Apple's logo is one of the most familiar icons(图标) around the world. But what’s the story about the Apple logo? The image of the apple is obvious, because that's the name of the company. What about the bite? The famous story is that the logo shows respect and honour for Alan Turing. He was the father of computer science. He researched artificial intelligence(人工智能) and unlocked German wartime codes(密码). However，after the war, he was put into prison，because of his beliefs. He could not stand the looking down and chose to bite a poisoned apple to end his life in the prison.
    However, Rob Janoff, who designed the famous Apple logo, said, “It's not the truth, but only a legend(传说, 传奇). The real reason why I designed it with a bite is very simple. I wanted people to get that it was an apple not a cherry (樱桃). When I go to markets to buy apples, I always mistake apples for cherries. It really has nothing to do with the scientist.”
    Are you kidding? An apple is much bigger than a cherry. It's very easy to tell. But if you use an apple to design a logo, some people may mistake it for a cherry.

用括号内所给单词的适当形式填空,必要时可加助动词或情态动词。
Waste can be seen everywhere in our school. Some students ask for more food than they can eat and others often forget____ (turn)off the lights when they leave the classroom. They say they can afford these things. But I____ (not agree)with them.Waste can bring a lot of problems. Although China is rich in some resources (资源), we're short of others, for example, fresh water(淡水). It____ (report) that we will have no coal(煤) or oil to use in 100 years. So if we go on____ (waste) our resources,what can we use in the future? Think about it. I think we should
say to the students who waste things every day. Everybody____ (stop) wasting as soon as possible.
In our everyday life, we can do many things____ (prevent) waste from happening, turn off the water taps(龙头) when we____ (finish) washing, turn off the lights when we leave the classroom, try not to order more food than we need, and so on. Little by little, everything will be changed. Waste can be stopped one day if we do our best.

①做各种坏事。____

②指做事残忍，灭绝人性。____

③形容认识一致，共同努力。____