老托福听力93篇高清电子资料下载【文本+音频】

2022-06-09 23:42:16

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  老托福听力93篇第一章

  Located at the NASA Research Center in Iowa is a 5,000-gallon vat of water, and inside the tank is an underwater treadmill designed by Dava Newman, an aerospace engineer. For four years Newman observed scuba divers as they simulated walking on the Moon and on Mars on her underwater moving belt. She wanted to discover how the gravity of the Moon and of Mars would affect human movement. To do this, Newman attached weights to the divers and then lowered them into the tank and onto the treadmill. These weights were carefully adjusted so that the divers could experience underwater the gravity of the Moon and of Mars as they walked on the treadmill. Newman concluded that walking on Mars will probably be easier than walking on the Moon. The Moon has less gravity than Mars does, so at lunar gravity, the divers struggled to keep their balance and walked awkwardly. But at Martian gravity, the divers had greater traction and stability and could easily adjust to a pace of 1.5 miles per hour. As Newman gradually increased the speed of the treadmill, the divers took longer, graceful strides until they comfortably settled into an even quicker pace. Newman also noted that at Martian gravity, the divers needed less oxygen. The data Newman collected will help in the future design of Martian space suits. Compared to lunar space suits, Martian space suits will require smaller air tanks; and, to allow for freer movement, the elbow and knee areas of the space suits will also be altered.

  【生词摘录】

  1. gallon: n. AmE a unit for measuring liquids, equal to 3.785 litres 【美】加仑(等于3.785升)

  2. vat: n. [C]a very large container for storing liquids such as whisky or dye, when they are being made(酿酒、盛染料用的)大缸,大桶

  3. tank: n. [C]a large container for storing liquid or gas(盛放液体或气体的)大容器

  4. treadmill: n. [C]a mill worked in the past by prisoners treading on steps fixed to a very large wheel(过去用以惩罚犯人的)踏车

  5. aerospace: adj. involving the designing and building of aircraft and space vehicles 航空和航天(器制造)的 n.[U]the industry that designs and builds aircraft and space vehicles 航空和航天工业,航天工业

  6. scuba diving: n. [U]the sport of swimming under water while breathing through a tube connected to a container of air on your back 斯库巴潜泳,水肺潜泳(戴自携式潜水呼吸器潜泳)

  7. simulate: v. to make or produce something that is not real but has the appearance of being real 模仿,模拟

  8. Martian: adj. of or relating to the planet Mars 火星的

  9. stride: n. [C]a long step 大步,阔步

  10. elbow: n. [C]the joint where your arms bends 肘

  老托福听力93篇第二章

  Current studies show that what goes on labels is an important consideration for manufacturers, since more than seventy percent of shoppers read food labels when considering whether to buy a product. A recent controversy as to whether labels on prepared foods should educate or merely inform the consumer is over, and a consumer group got its way. The group had maintained that product labels should do more than simply list how many grams of nutrients a food contains. Their contention was that labels should also list the percentage of a day's total nutrients that the product will supply to the consumer, because this information is essential in planning a healthy diet. A government agency disagreed strongly, favoring a label that merely informs the consumer, in other words, a label that only lists the contents of the products. The agency maintained that consumers could decide for themselves if the food is nutritious and is meeting their daily needs. The consumer group, in supporting its case, had cited a survey in which shoppers were shown a food label, and were then asked if they would need more or less of a certain nutrient after eating a serving of this product. The shoppers weren't able to answer the questions easily when they were not given a specific percentage. This study, and others helped get the new regulation passed, and now food products must have the more detailed labels.

  【生词摘录】

  1. label: n. [C]a piece of paper or other material that is stuck onto something and gives information about it 标签,标记

  2. consideration: n. [U]formal careful thought and attention【正式】斟酌,考虑

  3. manufacturer: n. [C]a company or industry that makes large quantities of goods 制造商;制造公司,制造厂

  4. gram: n. [C]the basic unit for measuring weight in the metric system 克(公制基本重量单位)

  5. nutrient: n. [C]a chemical or food that provides what is needed for plants or animals to live and grow 养分;营养物,营养品

  6. contention: n. [U]formal argument and disagreement between people【正式】争论,争端;口角

  7. favor: v. to think that a plan, idea etc is better than other plans, ideas etc 赞同,支持(计划、想法等)

  8. maintain: v. to strongly express your belief that something is true 断言(某事)属实;坚持说

  9. nutritious: adj. food that is nutritious is full of the natural substances that your body needs to stay healthy or to grow properly(食物)有营养的,滋养的,营养价值高的

  10. cite: v. to mention something as an example, especially one that supports, proves, or explains an idea or situation (尤指为支持、证明或解释一种观点或情况而)引证,援引

  11. regulation: n. an official rule or order 规则;条例;法令

  老托福听力93篇第三章

  Last week we talked about Anne Bradstreet and the role of women in the Puritan colonies. Today I want to talk about some other women who've contributed to American history—some famous and some not-so-famous. The first woman I'd like to talk about is Molly Pitcher. Those of you who are familiar with the name may know her as a hero of the American Revolution. But, in fact, there never was a woman named Molly Pitcher. Her real name was actually Mary Ludwig Hays. She got the nickname Molly Pitcher for her acts of bravery during the Revolutionary War. As the story goes, when Mary's—or Molly's—husband, John Hays, enlisted in the artillery, Mary followed, like many other wives did. She helped out doing washing and cooking for the soldiers. She was known to be a pretty unusual woman. She smoked a pipe and chewed tobacco. Anyway, in the summer of 1778, at the Battle of Monmouth, it was a blistering hot day, maybe over a hundred degrees, and fifty soldiers died of thirst during the battle. Molly wasn't content to stay back at camp. Instead, she ran through gunshots and cannon fire carrying water in pitchers from a small stream out to the thirsty American soldiers. The relief that she brought with her pitchers of water gave her the legendary nickname Molly Pitcher. The story also says that she continued to load and fire her husband's cannon after he was wounded. They say she was so well liked by the other soldiers that they call her "Sergeant Molly." In fact, legend has it that George Washington himself gave her the special military title.

  【生词摘录】

  1. Puritan: adj. 清教徒的

  2. nickname: n. [C]绰号,昵称

  3. bravery: n. [U]勇敢

  4. enlist: v. 征募,应募,参军

  5. artillery: n. 炮兵部队

  6. chew tobacco: 嚼烟草

  7. blistering: adj. 酷热的

  8. gunshot: n. [C]枪击

  9. cannon: n. [C]大炮

  10. pitcher: n. [C]罐壶,(带柄和倾口的)大水罐

  ......

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