PROS
经济原则:money-saving;economical;affordable;reduced commuting fees;lower travel costs;less money spent on infrastructure
时效原则:a time-saver;flexible;convenient;work and study at anytime and anywhere;make full use of odd time;study while working;accessibility
健康原则:enjoy adequate sleep;not need to hurry to school or work;have a healthy meal;free from stress during commuting
情感原则:more time spent with family;more communication with family members
环保原则:less car emission;reduced traffic congestion;less consumption of gasoline

CONS
1.经济原则:unaffordable;have no Internet access;money spent on equipment
2.时效原则:low efficiency;required self-discipline and self-motivation;disrupt normal family life
3.健康原则:lead a sedentary life;lead to obesity;be exposed to radiation
4.情感原则:lack face-to-face communication with peers;have a limited social network;cannot enjoy real life friendship
5.心理原则:feel isolated,depressed and helpless;become introverted,unsociable and frustrated;self-centered。
雅思写作范文:儿童保育中心
Task:Some working parents believe childcare centers can provide best care for their children,while others think of other family members like grandparents can do this job.Discuss both views and give your own opinion.
Sample answer:
Traditionally,toddlers are raised by their relatives such as grandparents in most countries.However,daycare centers have gained a growing popularity among working parents in recent years.From my point of view,attending a childcare center has more benefits.
One obvious argument in favor of daycare centers is that it provides children with the professional childhood education.This is because a good daycare centre is normally equipped with well-trained staff who can impart different skills,such as singing,dancing,painting and storytelling,to children through a variety of activities during the day.In addition to the well-organised,structured projects,toddlers are provided with more opportunities to socialize with other peers,which helps them gain confidence and self-consicousness.However,these opportunities are rare to achieve if they are watched over by grandparents.
Opponents feel that a relative care is as effective as children center.The reason for this is that taking care of a child is never an easy task,as children need constant love and attention.In fact,due to the limited number of caregivers,children are less likely to get the one-on-one care.By contrast,relatives,grandparents in particular,have sufficient time to take care of their beloved grandchildren,which also contributes to the family bond.
I personally believe that no child can become an active and valuable member of any society without intercommunicating with other peers.Therefore,although there are conniving arguments for a relative care,it is better to send them into daycare centers in the childhood period.