谁有一篇英语演讲稿，关于科技的，长度中等的！！！！！

Question

大哥大姐们，谁能找到一篇英语演讲稿，关于科技方面的，我急用啊，长度中等就行，谢谢啊！！！！

Answer 1

信息时代的双刃剑 There are many advantages to online and computer-based learning when compared to traditional face-to-face courses and lectures. There are a few disadvantages as well. Advantages of online or computer-based learning Class work can be scheduled around work and family Reduces travel time and travel costs for off-campus students Students may have the option to select learning materials that meets their level of knowledge and interest Students can study anywhere they have access to a computer and Internet connection Self-paced learning modules allow students to work at their own pace Flexibility to join discussions in the bulletin board threaded discussion areas at any hour, or visit with classmates and instructors remotely in chat rooms Instructors and students both report eLearning fosters more interaction among students and instructors than in large lecture courses eLearning can accommodate different learning styles and facilitate learning through a variety of activities Develops knowledge of the Internet and computers skills that will help learners throughout their lives and careers Successfully completing online or computer-based courses builds self-knowledge and self-confidence and encourages students to take responsibility for their learning Learners can test out of or skim over materials already mastered and concentrate efforts in mastering areas containing new information and/or skills Disadvantages of online or computer-based learning Learners with low motivation or bad study habits may fall behind Without the routine structures of a traditional class, students may get lost or confused about course activities and deadlines Students may feel isolated from the instructor and classmates Instructor may not always be available when students are studying or need help Slow Internet connections or older computers may make accessing course materials frustrating Managing computer files and online learning software can sometimes seem complex for students with beginner-level computer skills Hands-on or lab work is difficult to simulate in a virtual classroom.