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（09学军中学第七次月考）2008年10月8日，日本下村修、美国沙尔菲和钱永健因在发现绿色荧光蛋白（GFP）等研究方面做出突出贡献，获得2008年度诺贝尔化学奖。GFP在紫外光的照射下会发出绿色荧光。依据GFP的特性，你认为该蛋白在生物工程中的应用价值是A．作为标记基因，研究基因的表达         B．作为标签蛋白，研究细胞的转移C．注入肌肉细胞，繁殖发光小白鼠         D．标记噬菌体外壳，示踪DNA路径 阅读理解 　　Negative(消极的)self talk and negative energy can affect you m many ways and cause you additional stress．Because of this, developing more Positive self talk’s an important way to reduce stress in your life．You can help yourself maintain a positive frame of mind－which will help with positive self talk－by surrounding yourself with positive energy in your life．You can get that by adding some elements to your life． 　　Listening to music that not only has a soothing melody, but an uplifting message, can be great for developing positive self talk．Have you ever had a song“stuck in your head”for a few hours or days, the lyrics repeating themselves in your mind?If those lyrics were positive and inspirational, that would be a good thing．It’s a much better mental soundtrack to have than a running stream of complaints, criticisms of self-limiting thoughts, or even songs that had more depressing or sad lyrics． 　　Books on strength, personal power, enlightenment, or self help can be good resources to help you change your outlook and the things you say to yourself．Rather than bringing habitual self-defeating thoughts, you can find yourself thinking of new can-do concepts when times get tough． 　　One of the most important ways you can get and keep positive energy in your life is with the company you keep．Do your friends uplift you, or bring you down?Are they critical, or complementary?Ideal friendships provide support when you’re down, fun when you’re up, wisdom when you’re lost, and positive regard．Good friends can inspire you to reach greater heights, and see your strengths even when you don’t always．Pay attention to how your friends make you feel, and if they’re less than supportive, start putting your energy and time toward people who are better suited to be your friend． 　　In addition, positive affirmations(肯定)can certainly change your self talk from negative to positive．Now, why not begin working positive affirmations into your life in some creative ways? (1) What does the passage mainly talk about? [　　] A． Reducing stress by surrounding yourself with positive energy． B． Adding some elements to your life C． Getting positive energy from the company you keep． D． Changing your self talk with positive affirmation (2) How many ways does the author suggest to maintain a positive frame of mind? [　　] A． 3． B． 4． C． 5． D． 6． (3) If you have something“stuck in your head”．you probably _________． [　　] A． keep singing the same song for a long time B． keep thinking of this thing all the time C． regard the lyrics of a song as positive D． are developing positive self-talk (4) According to the passage, your best company should be those who ______． [　　] A． uplift you or bring you down B． provide fun when you’re down C． encourage you to do things even better D． are less than supportive (5) What will probably be talked about in the following paragraph? [　　] A． How negative self talk influences a person． B． How positive self talk reduces stress in one’s life． C． Some great ways of making great friends． D． Some creative ways of practicing affirmation．