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: 527.0 578.828451883 91% => OK
No of words: 145.0 151.265690377 96% => More words wanted. You may: choose simpler words or speak faster or remove hesitations or remove long pauses, and fully use the time, do NOT save one or two seconds.
Chars per words: 3.63448275862 3.82278263415 95% => OK
Fourth root words length: 3.47010008196 3.50058242952 99% => OK
Word Length SD: 1.74519554523 1.80425224433 97% => OK
Unique words: 91.0 92.4686192469 98% => OK
Unique words percentage: 0.627586206897 0.61298525976 102% => OK
Syllable count: 169.2 182.283891213 93% => OK
Avg_syllables_per_word: 1.2 1.20543933054 100% => OK
Performance on coherence:
Topic speech coherence ratio: 0.0859707132735 0.0839705835288 102% => OK
Acoustic performance on paragraphs:
How many acoustic paragraphs: 8.0 4.47071129707 179% => OK
Average paragraph length: 18.125 65.8948926009 28% => The average paragraph length is low.
STD paragraph length: 14.5467994762 19.7758100068 74% => OK
Average paragraph duration: 7.23625 25.5208953607 28% => The speaking content is not well organized.
STD paragraph duration: 5.07244501572 7.49434385956 68% => OK
Acoustic performance on sentences:
How many acoustic sentences: 43.0 42.9832635983 100% => OK
Average acoustic sentence length: 3.37209302326 3.78147595546 89% => OK
STD acoustic sentence length: 3.01949676859 2.94285465224 103% => OK
Average acoustic sentences duration: 1.27186046512 1.39386743896 91% => OK
STD acoustic sentences duration: 0.946153180513 0.967747756167 98% => OK
Acoustic performance on acoustic silence:(An acoustic silence means a little pause between two or more words)
How many acoustic silence: 37.0 40.4456066946 91% => OK
Total acoustic silence duration: 5.68 7.59280334728 75% => OK
Average acoustic silence duration: 0.153513513514 0.19053887516 81% => OK
STD acoustic silence duration: 0.14941717793 0.157467062838 95% => OK
Acoustic performance on acoustic words:
Total word duration: 46.4 46.3453556485 100% => OK
Average word duration: 0.32 0.308780311121 104% => OK
STD word duration: 0.180042140661 0.201157623399 90% => OK
Disfluencies: like hesitations, or 'ehn' or taking a long time to pronounce a word:
How many disfluencies: 13.0 8.09623430962 161% => It may have 'ehn' in the speaking, or it has hesitations or overlapping speeches.
Total_disfluencies_duration: 9.17 6.56692468619 140% => Somehow the hesitation is serious.
Total acoustic noise duration: 3.9 3.53066945607 110% => OK
Acoustic rates:
Total speech duration: 57.89 59.5455230126 97% => Talk more. Do not save time. People can talk 4-5 words in one second.
Compare to expected duration: 0.964833333333 0.992425383543 97% => OK
Rate of silence: 0.639143202626 0.681803438845 94% => OK
Rate of speech: 2.50475038867 2.53813033465 99% => OK
Rate of speech by unique words: 1.57194679565 1.55221717717 101% => OK
Rate of word duration by unique words: 1.96120689655 1.99939622689 98% => OK
Average articulation rates: 0.278817896552 0.309613076454 90% => OK
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Rates: 63.3333333333 out of 100
Scores by speech e-grader: 19.0 Out of 30
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Note: the speech e-grader does NOT examine the meaning of words and ideas.