Even people in traditional professions, where expert knowledge has been the key, are unlikely to escape the effects of new technology. Instead of going to a solicitor, you might go to a computer that is programmed with all the most up-to-date legal information. Doctors, too, will find that an electronic competitor will be able to carry out a much quicker and more accurate diagnosis and recommend more efficient courses of treatment. In education, teachers will be largely replaced by teaching machines far more knowledgeable than any human being. Most learning will take place in the home via video conferencing. Children will still go to school though, until another place is created where they can make friends and develop social skills.

　　What can we do to avoid the threat of unemployment? We shouldn’t hide our heads in the sand. Unions will try to stop change but they will be fighting a losing battle. People should get computer literate as this just might save them from professional extinction. After all, there will be a few jobs left in law, education and medicine for those few individuals who are capable of writing and programming the software of the future. Strangely enough, there will still be jobs like rubbish collection and cleaning as it is tough to program tasks that are largely unpredictable.

　　21. According to the author, the rate of change in technology _________.

　　A) will remain the same B) will slow down C) will speed up D) cannot be predicted

　　22. The author expects that by 2010 new technology will have revolutionized communications and _______.

　　A) bookshops will not exist B) the present postal system will disappear

　　C) people will no longer write letters D) postmen will have been replaced by the motorcar

　　23. From the passage, we can infer that ______.

　　A) professionals won’t be affected by new technology

　　B) doctors won’t be as efficient as computers

　　C) computers cannot replace lawyers

　　D) experts will know less in the future

　　24. The passage tells us that in the future ______.

　　A) children will not be taught in schools B) no teachers will be needed

　　C) teachers will be less knowledgeable D) children will learn social skills at school