小伙伴们，托福考试大家复习的怎么样了呢？下面是帮考网分享的一些托福考试听力部分的复习资料，一起来看看吧！

I want to welcome each and every balloon enthusiast to Philadelphia. Thank you for coming here this morning to commemorate the first balloon voyage in the United States. On January 9, 1793, at ten o\'clock in the morning, a silk balloon lifted into the skies above this city, which was, at the time, the capital of the country. According to the original records of the flight, the voyage lasted forty-six minutes, from its departure in Philadelphia to its landing across the Delaware River in New Jersey. Though our pilots today will try to approximate the original landing site, they\'re at the mercy of the winds, so who knows where they\'ll drift off to. Even the balloonist in 1793 experienced some uncertain weather that day. There were clouds, fog, and mist in various directions. Our reenactment promises to be nothing less than spectacular. The yellow balloon directly behind me is five stories high. It\'s inflated with helium, unlike the original, which was filled with hydrogen and, unbeknownst to the pilot, potentially explosive. Gas-filled models are pretty uncommon now because of the extremely high cost, so the eighty other balloons in today\'s launch are hot air, heated by propane burners. These balloons are from all over the country.

【生词摘录】

1. balloon: n. a large bag of strong light cloth filled with gas or heated air so that it can float in the air 热气球

2. enthusiast: n. [C]someone who is very interested in a particular activity or subject 热衷于„的人

3. Philadelphia: 费城

4. commemorate: v. to do something to show that you remember and respect someone important or an important event in the past 庆祝，为„举行纪念活动

5. approximate: v. to be close to a particular number 接近

6. at the mercy of: unable to do anything to protect yourself from someone or something 任凭„的摆布(而无力保护自己)

7. balloonist: n. [C]someone who flies a balloon 气球驾驶者

8. reenactment: n. 重新制定(法律等)，重新颁布(法令等);再次扮演，再次演出;再次展现(相同的事件)

9. nothing less than: 只不过是，正是，无非是

10. inflate: v. if you inflate something, or if it inflates, it fills with air or gas so that it becomes larger(使)充气，(使)膨胀

11. helium: n. [U] a gas that is lighter than air, often used in balloons 氦(气)

12. unbeknownst: adj. 又作unbeknown，unbeknownst to somebody, without that person knowing about it 不为某人所知的

13. propane: n. [U]a colorless gas used for both cooking and heating 丙烷(气)

14. burner: n. [C]AmE the part of an oven or heater that produces heat or a flame 【美】炉头，火眼

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