1. Listening Comprehension
1~3) Listen to the following and answer the question.
Pre-history
Prior to the release of bitcoin there were a number of digital cash technologies starting with the issuer based e-cash protocols of David Chaum and Stefan Brands. Adam Back developed hashcash, a proof- of-work scheme for spam control. The first proposals for distributed digital scarcity based cryp
The verb say takes a that-clause as a direct object, optionally with to + object ,and only say takes a direct quotation as a direct object.
And say takes a limited number of noun phrases.
Many say that seat belts are unnecessary.
Tim said to Marco, “It's funny, It looks like a turtle.”
He said that “it is necessary to get up
earlier.”
They said some nice things about you.
I. Introduction: What is IT and THERE?
• Commonly function as pronouns.
[For example]
A : Has anyone seen the newspaper?
B : The last time I saw it, it was in the living room.
In this sentence, it refers to the newspaper.
Big(“about size”) vs Red(“about color”)
: too few semantic features
- Antonym(x)
Buy(“change in possession”) vs Sell(“change in possession”)
: share all but one semantic feature(direction of the change)
- Antonym(O)
1.5.1.Semantic Features of Nouns
1.5.2.Semantic Features of Verbs
1.5.3.Semantic Features interact with different a