检测用途：1. 预测重大疾病 2. 预知食物偏好3. 提示合适的锻炼方式
检测影响：1. 增强健康意识 2. 易引起过度焦虑
By analyzing the saliva sample，a new medical technology called DNA Test has been popular in foreign countries.The fee of the test is 125 pounds which needs 4 to 6 weeks.Not only can the test predict serious illnesses and food preference，but also present people with proper ways to exercise.On the one hand，it can strengthen the health awareness.On the other hand，it is likely to bring about over-anxiety.
On the first day of her work, Sally found that a class full of problems was waiting for her. Six teachers had quit before her. When she walked into the classroom, it was chaos: two boys were fighting in the far corner, yet the rest of the class seemed not to notice them; some girls were chatting and some were running about; paper, food packages and other garbage were littered around…. Just when she was about to speak, a student rushed in and pushed her aside! He was twenty minutes late!
Sally walked onto the platform, picked up a piece of chalk and wrote on the blackboard: “Rule 1: We are family! “ All students stopped to look at her. And she continued with Rule 2, Rule 3… .In the following weeks, Sally worked out 10 class rules and posted them on the walls of the classroom. She patiently explained all the rules to the students and required everyone to follow them.
Surprisingly, Sally was not driven out like the former teachers; instead, she won respect from the students. Over the year, she witnessed gradual change in the class. At the graduation ceremony, just as she expected, she was very proud to stand with a class of care, manners and confidence.
(1) 你们班最突出的问题是什么? (2) 针对该问题你会设计一条什么班规?
As can be seen from the article above，the intelligent teacher Sally managed to keep the chaos class in order and win respect from her students eventually by applying good rules.This story shows clearly the significance of class rules.
As for our class，the most serious problem requiring to be resolved urgently is that some students tend not to concentrate on lessons but to read meaningless novels or play cellphones secretly，which has damaged the studying atmosphere of our class.In order to settle the tough problem，I recommend that those caught doing such things should read an inspiring book every month and share it with all the other students.From my point of view，not only can this approach prevent them wasting precious time in class，but also arouse their interest in reading good books，from which they will benefit a lot.In addition，it will contribute to creating a good environment to read books in our class.Undoubtedly，it will be of great value to every student in our class.