科技使我们的生活素质提高了不止一倍，这可以举很多例子比如：有了电灯，晚上不再漆黑；有了飞机，咫尺天涯不再是梦想。科技的益处是我们无法否认的，但科技如果应用不当，便会给社会造成危害，给人类带来灾难。
就如《隐身人》所说的那样：化学家格里芬经过一番苦心研究，他有一种可以使身体隐设的方法，并在自己身上试验成功。可是成为隐身人的他自我意识膨胀，想在一个地方称王称帝，之后用自己的.隐身技术统治人类，称霸全球。最后在一次追捕中被人活活打死。由此可见把一种科技运用好了，比发明它更加重要。就如DDT，那时人们滥用这种农药，使现在很多生态系统收到破坏，而且这DDT也会通过食物链最终进入人们的口中，最后危害人类自身。就像蛇的毒液一样，如果应用得当，有时会成为救命的一帖良药。药也有三分毒。科技是好的，是有益处的，关键在于人们如何去应用它；应用得好，造福万家；应用得不好，危害自身。
运用好科技，自身也要有良好的心态，在发明科技时，想的是为老百姓造福，而不是怎样为自己谋利，这样才可以算是一个好的发明家。
让我们一起运用好科技吧。
As a young man, in the late 1920s or early 1930s, the narrator lived in the South. Because he is a gifted public speaker, he is invited to give a speech to a group of important white men in his town. The men reward him with a briefcase containing a scholarship to a prestigious black college, but only after humiliating him by forcing him to fight in a “battle royal” in which he is pitted against other young black men, all blindfolded, in a boxing ring. After the battle royal, the white men force the youths to scramble over an electrified rug in order to snatch at fake gold coins. Three years later, the narrator is a student at the college. He is asked to drive a wealthy white trustee of the college, Mr. Norton, around the campus. Norton talks incessantly about his daughter, then shows an undue interest in the narrative of Jim Trueblood, a poor, uneducated black man who impregnated his own daughter. After hearing this story, Norton needs a drink, and the narrator takes him to the Golden Day, a saloon and brothel that normally serves black men. A fight breaks out among a group of mentally imbalanced black veterans at the bar, and Norton passes out during the chaos. He is tended by one of the veterans, who claims to be a doctor and who taunts both Norton and the narrator for their blindness regarding race relations.
The narrator says that he has stayed underground ever since; the end of his story is also the beginning. He states that he finally has realized that he must honor his individual complexity and remain true to his own identity without sacrificing his responsibility to the community. He says that he finally feels ready to emerge from underground.
As the narrator of Invisible Man struggles to arrive at a conception of his own identity, he finds his efforts complicated by the fact that he is a black man living in a racist American society. Throughout the novel, the narrator finds himself passing through a series of communities, from the Liberty Paints plant to the Brotherhood, with each microcosm endorsing a different idea of how blacks should beha一ve in society. As the narrator attempts to define himself through the values and expectations imposed on him, he finds that, in each case, the prescribed role limits his complexity as an individual and forces him to play an inauthentic part.
Upon arriving in New York, the narrator enters the world of the Liberty Paints plant, which achieves financial success by subverting blackness in the service of a brighter white. There, the narrator finds himself involved in a process in which white depends hea一vily on black—both in terms of the mixing of the paint tones and in terms of the racial makeup of the workforce. Yet the factory denies this dependence in the final presentation of its product, and the narrator, as a black man, ends up stifled. Later, when the narrator joins the Brotherhood, he believes that he can fight for racial equality by working within the ideology of the organization, but he then finds that the Brotherhood seeks to use him as a token black man in its abstract project.
Ultimately, the narrator realizes that the racial prejudice of others causes them to see him only as they want to see him, and their limitations of vision in turn place limitations on his ability to act. He concludes that he is invisible, in the sense that the world is filled with blind people who cannot or will not see his real nature. Correspondingly, he remains unable to act according to his own personality and becomes literally unable to be himself. Although the narrator initially embraces his invisibility in an attempt to throw off the limiting nature of stereotype, in the end he finds this tactic too passive. He determines to emerge from his underground “hibernation,” to make his own contributions to society as a complex individual. He will attempt to exert his power on the world outside of society’s system of prescribed roles. By making proactive contributions to society, he will force others to acknowledge him, to acknowledge the existence of beliefs and beha一viors outside of their prejudiced expectations.
Over the course of the novel, the narrator realizes that the complexity of his inner self is limited not only by people’s racism but also by their more general ideologies. He finds that the ideologies advanced by institutions prove too simplistic and one-dimensional to serve something as complex and multidimensional as human identity. The novel contains many examples of ideology, from the tamer, ingratiating ideology of Booker T. Washington subscribed to at the narrator’s college to the more violent, separatist ideology voiced by Ras the Exhorter. But the text makes its point most strongly in its discussion of the Brotherhood. Among the Brotherhood, Because he has decided that the world is full of blind men and sleepwalkers who cannot see him for what he is, the narrator describes himself as an “invisible man.” The motif of invisibility pervades the novel, often manifesting itself hand in hand with the motif of blindness—one person becomes invisible because another is blind. While the novel almost always portrays blindness in a negative light, it treats invisibility much more ambiguously. Invisibility can bring disempowerment, but it can also bring freedom and mobility. Indeed, it is the freedom the narrator derives from his anonymity that enables him to tell his story. Moreover, both the veteran at the Golden Day and the narrator’s grandfather seem to endorse invisibility as a position from which one may safely exert power over others, or at least undermine others’ power, without being caught. The narrator demonstrates this power in the Prologue, when he literally draws upon electrical power from his hiding place underground; the electric company is aware of its losses but cannot locate their source. At the end of the novel, however, the narrator has decided that while invisibility may bring safety, actions undertaken in secrecy cannot ultimately ha一ve any meaningful impact. One may undermine one’s enemies from a position of invisibility, but one cannot make significant changes to the world. Accordingly, in the Epilogue the narrator decides to emerge from his hibernation, resolved to face society and make a visible difference.
隐形的翅膀讲的是花季少女志华考上了高中，她高兴极了，她就和同学们一起去放风筝，玩着玩着。突然，风筝被卡在了电线上。志华说：“我找一根木头去挑吧！”说完，她找了根木头去挑。可是，谁也没想到的事情发生了：志华刚挑了一会儿。忽然，紧邻在电线旁边的电筒爆炸了，志华被炸晕了过去。
爸爸妈妈赶紧把她送进医院，医生就下达了病危通知书，如果不截肢，那就有可能有生命危险，志华因此失去了双手，下床也都快不能下了，她非常伤心，绝望了。她便来到一条小河边上，一步一步地走了进去。爸爸妈妈见志华不见了，便赶紧找了起来。爸爸看见志华要跳河了，便赶紧也跳进河里去，把志华救了上来。
妈妈因为下达了病危通知书而得了精神分裂症，她一看到风筝就会发疯。有一次，下了大雨，志华回来时，看见妈妈正在雨中玩着风筝呢！她只好一个人用脖子收风筝。
几年的时间一转眼就过去了，志华就要考大学了，爸爸妈妈的希望都寄托在了志华的身上，志华因为是残疾人，又不能写字，学校也不能收她。后来，她苦练写字，学校终于破格收了她。
有两个同学跟她座位很近，一个是男同学，他很虚心。他教会了志华学自行车。另外一个是女的，经常瞧不起志华这个失去双手的残疾人。有一次，女同学生病了，志华特意跑到她的家，喂她喝水，给她吃药。女同学被志华感动了，和她成为了好朋友。
志华的妈妈因为得了精神分裂症，无意中走到了河边，越陷越深，但她还是不顾一切地往前走志华发现了妈妈要跳河，就赶紧跳进了河中去救妈妈，但是她不会游泳。就在这危急的时刻，一辆拖拉机开了过来，车上的人见志华和她的妈妈都快淹没在水中了，就赶紧拖掉外衣，跳进河里去救她们母女两，经过一番救助，妈妈是救起来了，可是她再遇到刺激病情还会继续发作。志华参加了高考，虽然她的考分过了线，但因为没有双手又报的是医学专业，她没有被录取。想学医为妈妈治病的愿望破灭了。就在她迎战全国残运会刻苦训练的时候，她妈妈无意中知道了志华没有被录取的消息，经受不住打击，精神分裂症发作，一下子走失，再也没有回来。
一次，国家队来这里挑选运动员来参加国家残奥会，她看中了志华这个苗子，准备选她来参加残奥会。于是，志华参加了国家队。
在志华的不断练习下。志华参加了全国的'残奥会。全程有3个来回。一开始，志华被远远地抛在了后面，过了一会儿，总算超过了一个人。嘿！又超过了一个人，在最后的关头，志华使出了最大的力气。啊！志华把前面两个人都超过了。最后，志华夺得了第一名。学校也录取了她。志华在全国残疾人运动会上获得了好成绩，取得了进军残奥会的资格。但是她的妈妈已不在人世。电影在最后快要结束时，女主人公知道自己考上了大学时，她在草原上对着蓝天大喊：“妈妈，我考上大学了！”看到这一幕时，我感动得流下了眼泪。
/每一次/都在徘徊孤单中坚强/每一次/就算很受伤/也不闪泪光/我知道/我有一双隐性的翅膀/带我飞/飞过绝望……我很喜欢这首歌，更佩服女主人公那坚持不懈的精神，学习她坚强、有责任心、刻苦钻研的优秀品质，同时应该珍惜生命，让活着的生命更精彩！
