Transcript Lecture17

Lecture 17
Ling 442
Exercises
1. What is the difference between (a) and (b) regarding the
thematic roles of the subject DPs.
(a) Bill ran.
(b) The tree fell over.
2. Suppose that (c) is true. Suppose that (d) is also true, does
our theory say that (d) is true or false?
c) Mary spent 40,000 dollars in 2011.
(d) Mary bought a cup of coffee on August 13, 2011.
(e) (When she bought a cup of coffee on 8/13/11,) Mary
was spending 40,000 dollars.
Exercises part 2
3. What is the sequence-of-tense
phenomenon? How is English and Japanese
different wrt to this?
(f) Mary found out (or thought) that Sue was
pregnant.
4. (Advanced) Why couldn’t we say simply that
the embedded past tense is an indexical
(deictic) past tense that refers to a past time
in relation to the utterance time?
Problems with Thematic Roles
• It is often difficult to identify the role of some
DPs. Often the roles go beyond what the
standard labels (e.g. agent, patient, theme,
instrument, etc.) can cover.
• If we increase the number of thematic roles
used in the theory, we cannot come up with
an interesting theory because there are too
many roles.
Localist roles
Some verbs just talk about locations of objects.
Theme: object that changes location or
undergoes a change.
1. The ball rolled out of the bag.
[theme]
[source]
2. The ball rolled into the pocket.
[theme]
[goal]
3. Jones ran along the cinder path.
[theme]
[path]
Recipient and benefactive
• With ditransitive verbs (i.e. double object
constructions), the two objects are associated
with the roles “theme” and
“recipient/benefactive”
1.Liam showed the photos to his girlfriend.
2.Jones made a new kennel for the dog.
Roles for adjunct DPs
1. With a silver spoon
[instrument]
2. On Sunday
[time (frame)]
2. In Seattle
[location]
What does semantics mean to nonlinguists?
What does semantics mean to nonlinguists?
Theta roles
• Syntacticians often avoid this problem by
saying that each verb has a fixed number of
“theta roles” to assign/check. But we do not
ask what specific roles are being assigned. E.g.
When A writes B, A has the writer role, and B
has the writee role.
Thematic roles and Vendler’s stuff
Accomplishment: subject  agent (usually)
object  incremental theme (e.g. write a book)
Achievement: subject  more like
“experiencer” than “agent” (e.g. find, spot)
object (if any)  goal? (e.g. reach the summit)
Activity: Subject  agent
object (if any)  patient (non-incremental)
State: Subject  non-agent, non-patient
object (if any)  non-agent, non-patient
Lexical Decomposition
One way of showing the roles of each DP without
using thematic roles, per se.
• Stative: represented by primitive predicates
describing states
• Achievements: represented by BECOME DP Adj
(DP’s “becoming” Adj)
(The subject DP: undergoer?)
• Accomplishment: represented by DP CAUSE S (or
S1 CAUSE S2) (DP “causes” S or S1 “causes” S2)
(The subject DP: agent?)
Lexical decomposition
and thematic roles
•
•
•
•
Some examples
Recipient role: y in BECOME [have (y, z)]
Source: z in BECOME [~be-at (y, z)]
Goal: z in BECOME [be-at (y, z)]
Another possibility
• Dowty (1991) tries to derive thematic roles (such as
agent/patient) in terms of a set of entailments that
loosely characterize “prototypical subject/object”
• E.g. agent
• Volitional involvement
• Causing an event or change of state in another
participant
• Movement
This means that the “agentive subject” of a particular
transitive verb may not have all the properties listed
here, but most of them.
Yet another possibility
• Just accept the standard thematic role labels
and think of them semantically as relations
between events and event participants.
• This analysis is discussed in conjunction with
the neo-Davidsonian theory.
• How about selling vs. buying?