Listening Script
Narrator
Now listen to a part of a talk in an economics class.
Professor
So, let's talk about money. What is money? Well, typically people think of coins and paper "bills" as money... but that's using a somewhat narrow definition of the term. A broad definition is this: [slowly] money is anything that people can use to make purchases with. Since many things can be used to make purchases, money can have many different forms. Certainly, coins and bills are one form of money. People exchange goods and services for coins or paper bills, and they use this money … these bills... to obtain other goods and services. For example, you might give a taxi driver five dollars to purchase a ride in his taxi. And he in turn gives the five dollars to a farmer to buy some vegetables ...
But, as I said, coins and bills aren't the only form of money under this broad definition. Some societies make use of a barter system. Basically, in a barter system people exchange goods and services directly for other goods and services. The taxi driver, for example, might give a ride to a farmer in exchange for some vegetables. Since the vegetables are used to pay for a service, by our broad definition the vegetables are used in barter as a form of money.
Now, as I mentioned, there's also a second... a narrower definition of money. In the United States only coins and bills are legal tender—meaning that by law, a seller must accept them as payment. The taxi driver must accept coins or bills as payment for a taxi ride. OK? But in the U.S. the taxi driver is not required to accept vegetables in exchange for a ride. So a narrower definition of money might be whatever is legal tender in a society, whatever has to be accepted as payment.
| Post dates | Users | rates | Contents |
|---|---|---|---|
| 2020-01-29 | maiqiding@gmail.com | 90.00 | Check this speaking |
| 2019-03-22 | alta | 36.50 | Check this speaking |
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Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on vocabulary words:
No of characters: 669.0 578.828451883 116% => OK
No of words: 175.0 151.265690377 116% => OK
Chars per words: 3.82285714286 3.82278263415 100% => OK
Fourth root words length: 3.63713576256 3.50058242952 104% => OK
Word Length SD: 2.04451680834 1.80425224433 113% => OK
Unique words: 102.0 92.4686192469 110% => OK
Unique words percentage: 0.582857142857 0.61298525976 95% => OK
Syllable count: 209.7 182.283891213 115% => OK
Avg_syllables_per_word: 1.2 1.20543933054 100% => OK
Performance on coherence:
Topic speech coherence ratio: 0.079843444227 0.0839705835288 95% => OK
Acoustic performance on paragraphs:
How many acoustic paragraphs: 1.0 4.47071129707 22% => Need more acoustic paragraphs.
Average paragraph length: 175.0 65.8948926009 266% => The average paragraph length is high.
STD paragraph length: 0.0 19.7758100068 0% => OK
Average paragraph duration: 61.18 25.5208953607 240% => Need to control the rhythm of the speech
STD paragraph duration: 0.0 7.49434385956 0% => The duration of acoustic paragraphs keeps same.
Acoustic performance on sentences:
How many acoustic sentences: 28.0 42.9832635983 65% => OK
Average acoustic sentence length: 6.25 3.78147595546 165% => OK
STD acoustic sentence length: 4.48509436117 2.94285465224 152% => OK
Average acoustic sentences duration: 2.11214285714 1.39386743896 152% => OK
STD acoustic sentences duration: 1.36551758147 0.967747756167 141% => OK
Acoustic performance on acoustic silence:(An acoustic silence means a little pause between two or more words)
How many acoustic silence: 31.0 40.4456066946 77% => OK
Total acoustic silence duration: 6.53 7.59280334728 86% => OK
Average acoustic silence duration: 0.21064516129 0.19053887516 111% => OK
STD acoustic silence duration: 0.16517704058 0.157467062838 105% => OK
Acoustic performance on acoustic words:
Total word duration: 51.89 46.3453556485 112% => OK
Average word duration: 0.296514285714 0.308780311121 96% => OK
STD word duration: 0.171806763783 0.201157623399 85% => OK
Disfluencies: like hesitations, or 'ehn' or taking a long time to pronounce a word:
How many disfluencies: 11.0 8.09623430962 136% => It may have 'ehn' in the speaking, or it has hesitations or overlapping speeches.
Total_disfluencies_duration: 7.86 6.56692468619 120% => OK
Total acoustic noise duration: 0.69 3.53066945607 20% => Good job. The lower, the better.
Acoustic rates:
Total speech duration: 61.18 59.5455230126 103% => Need to finish the speech on time.
Compare to expected duration: 1.01966666667 0.992425383543 103% => OK
Rate of silence: 0.50670153645 0.681803438845 74% => OK
Rate of speech: 2.86041189931 2.53813033465 113% => OK
Rate of speech by unique words: 1.66721150703 1.55221717717 107% => OK
Rate of word duration by unique words: 1.96569666602 1.99939622689 98% => OK
Average articulation rates: 0.378538074286 0.309613076454 122% => OK
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Rates: 80.0 out of 100
Scores by speech e-grader: 24.0 Out of 30
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Note: the speech e-grader does NOT examine the meaning of words and ideas.