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1、pixyU11. Write and live on a farm. 2. Because they grow nearly all of their fruits and vegetables. They have enough eggs, honey and wood. They are very close to nature and can enjoy the beautiful scenery. Besides, they can go skiing and skating in winter. 3. No. Sometimes the good life can get prett
2、y tough. 4. They were buried under five feet of snow from December through March. 5. When the first spring came, it brought two floods. The second flood refers to the good harvest in the growing season. 6. He decided to quit his job and start to freelance. 7. He has to crawl into black bear dens for
3、 “Sports Illustrated”, hitch up dogsled racing teams for “Smithsonian” magazine, check out the Lake Champlain “monster” for “Science Digest”, and canoe through the Boundary Waters Wilderness area of Minnesota for “Destinations”. 8. As for insurance, they have only bought a poor mans major-medical po
4、licy and the policy on their two cars. 9. They cut back their expenses without appreciably lowering their standard of living. For example, they patronize local restaurants instead of more expensive places in the city. They still attend the pixyopera and ballet but only a few times a year. They eat l
5、ess meat, drink cheaper wine and see fewer movies. 10.A tolerance for solitude and lots of energy. 11.They will leave with a feeling of sorrow but also with a sense of pride at what they have been able to accomplish. 12.They chose to live in the country because they want to improve the quality of th
6、eir lives. Yes, they have finally realized their dreams. U21. Because he was confident that the Creator intended all men to be created equal. And he never gave up struggling for that freedom.2. To learn more about a man who was, in many years, an African-American Moses.3. It was a secret web of esca
7、pe routes and safe houses that was used to liberate slaves from the American South. A long list of courageous men and women like Josiah Henson forged it.4. To remember the heroes of the Underground Railroad and song their exploits.5. By saving enough money through working at the trade of iron moldin
8、g.6. Because helped people to slip by the slave hunters.pixy7. Driven by religious convictions.8. The risk of being imposed a fine or a brief jail sentence.9. They were usually easy to recognize10. Because slavery had been abolished there in 1833, and Canadian authorities encouraged the runaways to
9、settle their vast virgin land.11.Because the master was planning to sell him for plantation work far away which would make him separated forever from his family.12.Member of the Underground Railroad provided for their welfare carefully and set them thirty miles on their way by wagon, and a captain g
10、ave them a dollar and arranged for a boat which carried them to Canada.U31. No. 2. No. 3. It has been replaced by an era when people employ various security devices at home. 4. Small notices announcing that the premises are under surveillance by this security force or that guard company. 5. The insu
11、rance company tries to impress the public that it will ensure your safety by paying for your losses. 6. An atmosphere of fear and distrust. pixy7. Because they feel threatened and want to keep outsides away. 8. No. They are by now the most sophisticated of security sites. 9. It is a way to hold the
12、terrorists, real and imagined, at bay. 10.To tell whether their friend or client is telling lies. 11.All is done in the name of “security”. But according to the author, America, with all this “security”, is perhaps the most insecure nation in the history of civilization. 12.We may have locked the ev
13、ils out, but in so doing we have locked ourselves in. U41. He worked as a “Technical Expert, Third Class”. He needed the job to support his young family. 2. He published five of the most important papers in the history of science. This is because they proved that atoms and molecules existed, laid th
14、e foundation for quantum mechanics, describe the theory of special relativity, and advanced the famous equation: E=mc2 3. He developed the Theory of Universal Gravitation then. 4. Because his ideas were far ahead of other scientists of his time. pixy5. He meant that like other scientists Einstein wa
15、s a man of his time. If he hadnt been born, his 1905 papers would eventually have been written in some form by others. 6. What was remarkable about 1905 is that year a single person authored five of the most important papers in science. Einstein proposed in 1905 that light is particulate and for thi
16、s he won the Nobel Prize in 1921. 7. Because if you did so you would find yourself disagreeing with physicist James Clerk Maxwell, an Authority Figure who had proved that light was an electron magnetic wave. 8. He was not at all concerned about authority. He hated being told what was true. 9. Science was dinner-table conversation in the Einstein household when he was young. His interest in science came naturally. 10.He credited his discoveries to imagination and en
