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主题:无人货船的优劣势分析
阅读
1. 相较于传统货船,无人货船的运营成本更低,原因在于节省了船员开支。传统货船需聘请船员,要支付工资、福利等费用,无人货船则无需这些支出,从而降低了运营成本。
2.无人货船不易遭海盗袭击。因无人货船上无船员,海盗难以登船抢劫。且无人货船由电脑操控,海盗难以像控制传统货船那样直接掌控船只。
3. 传统货船易因人员疲劳或分心出事故,无人货船事故率低更安全。船员长时间航行易疲劳或分心致操作失误引发事故,无人货船由电脑系统控制,不会出现人为错误,降低了事故概率。
听力
1.无人货船未必能帮公司省钱。虽无人货船无船员成本,但船员海上航行时能维护船舶,无人货船只能进港后维护。无人货船进港维护会耽误运输货物赚钱的时间,船主会因此损失收入。
2.虽无人货船上无海盗可用的控制装置,但海盗仍有法偷走船。无人船虽能自主航行,但仍需偶尔接收陆地人员传输,如导航软件更新。网络海盗可借此向船发送替代指令,找到控制船的方法,强迫货船改变航向偷走它,无需靠近船。
3. 船员疲劳或分心会引发事故,但也能在技术故障时阻止事故。船舶用传感器技术防撞,但该技术可能受强风等天气干扰。有船员在船时,能发现前方障碍物,而无人货船在某些条件下无法探测到障碍物,会继续航行致严重事故。无人货船技术故障时无人员协助处理,可能引发更多事故。
Your professor is teaching a class on sociology. Write a post responding to the professor’s question.
In your response, you should
· express and support your personal opinion
· make a contribution to the discussion in your own words
An effective response will contain at least 100 words. You have ten minutes to write.
Doctor Diaz: This week we are studying how policy for public schools is created and how it may change over time. One very important topic for educational policy involves what courses should be taught in schools. Many people believe that new forms of communication and new kinds of employment require that new and different kinds of courses be taught.The question l want you to discuss is whether new, innovative subjects should be taught in public schools.
Kelly: I definitely think there should be new kinds of courses taught in public schools. For instance, people communicate more and more on the Internet by sharing photographs and videos with each other.| think a course in video composition-that is, how to make good and effective videos-would be really valuable to today's students. And there are many other similar topics that students might benefit from.
Andrew: I really don't think the high school curriculum needs to change. The main purpose of most courses in high school is to prepare students for higher education, and those basic requirements haven't changed. lf students want to learn other things, like how to compose photographs or edit films. they can watch instructional videos on the Internet. They don't need a class in school to learn things like that.
范文:
I uphold that public schools should incorporate innovative subjects into their curriculum in order to better prepare students for the rapidly evolving world we live in. By teaching subjects that are cutting-edge and forward-thinking, students are given the tools they need to succeed in an increasingly competitive job market. One innovative subject that I believe should be taught in public schools is coding. In today's digital age, coding has become an essential skill for many careers, yet it is often not taught in traditional school settings. By introducing coding into the curriculum, students are given the opportunity to learn a valuable skill that can open up a world of opportunities in fields such as technology, engineering, and computer science. I
remember when I first learned how to code in high school. At first, I was intimidated by the complex algorithms and syntax, but with the help of my teacher and classmates, I was able to grasp the concepts and eventually create my own programs. This experience not only taught me a valuable skill, but also helped me develop problem-solving and critical thinking abilities that have proved invaluable in my career.
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