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)(A)Life in the 21st century will be different from life in the 20th century, because many changes will take place in the new century. But what will the changes be?The population is growing fast. There will be more and more people in the world and most of them will live longer than before. Computers will be much smaller and more useful, and there will be at least one in every home. And puter studies will be one of the most important subjects in schools.People will work fewer hours than they did in the 20th century, and they will have more free time for sports, watching TV and traveling. Traveling will be much cheaper and easier. And more people will go to other countries for holidays.There will be changes in our food, too. More land will be used for buildings, new towns and houses. Then there will be less room for cows and sheep, so meat will be more expensive. Maybe no one will eat it every day, instead, they eat more vegetables and fruit. Maybe people will be healthier.Work in the future will be different, too. Dangerous and hard work will be done by robots(機(jī)器人). Because of this, many people will not have enough work to do. This will be a new problem.( ) 1. People may not have as much as they did in the 20th century.A. fruit B. milk C. bread D. meat( ) 2. In the 21st century people don’t have to .A. travel B. work fast C. work long hours D. eat meat ( ) 3. Traveling will be in the 21st century.A. less interesting B. more difficultC. more expensive D. much cheaper and easier( ) 4. In the 21st century there will be .A. more cows and sheep B. more peopleC. fewer people D. fewer buildings and houses( ) 5. Every family will have at least one in the 21st century.A. puter set D. robot(B)一個(gè)名為“人口危險(xiǎn)委員會(huì)”的組織對(duì)世界上100個(gè)大城市進(jìn)行了調(diào)查。請(qǐng)根據(jù)上面12個(gè)主要大城市的調(diào)查表回答問(wèn)題。Population(million)% of inespent on foodPersonsper room% of houseswith water andelectricityTelephone per100 people% of childrenin high schoolsTokyo181004497Mexico City4194662New York16995695St. Paul501001667Osaka18984297Seoul341002290Moscow3310039100Bombay5785549Calcutta6057249Buenos Aires40861451Los Angeles12943590London241005058( ) 6. Of the following cities, people live in spend least of their ine on food. A. Mexico City B. Los Angeles C. Calcutta D. Bombay( ) 7. Which city has the largest population?A. New York. B. Moscow. C. Tokyo. D. London. ( ) 8. The number of the students studying in high schools in Tokyo out of 100 students is the same as that of . A. Seoul B. St. Paul C. Calcutta D. Osaka( ) 9. In which city do all the houses have water and electricity?A. London. B. Los Angeles. C. New York. D. Bombay. ( ) 10 It is the