Page 266 - Makino,Tsutusi.DictionaryOfIntermediateJGrammar

- +d.w iA Z drri t< LA IP 'LI
192 mono (da)
(f) rv3 I-n=3~0&%b&+fdbb~Ba&%B%Cf'ilI/~< botTi$
sika,
(It is predicted that the world of electronics will continue advancing
rapidly from now on, too.)

Mono (da) is used to change the structure "X wa VP," which describes
an action taken by or received by X, to the structure "X wa Np da;
which is used to present a characteristic of X. Compare the two sen-
tences in (1).
(1) a. %GOJ~VL-POI~~APC&~~ I4~2tt~Jkq~~
2.
ik'il'd~ao
(Most of the present computers are called the von Neuman
model.)

Here, (la) describes what happens to the referent of the topic (i.e., most
of the present computers) while (lb) provides a characteristic of the ref-
erent.

Mono (da) as in KS(B), Exs.(c) and (d) frequently appears in newspaper
articles. It is used when a sentence provides such information as a pur-
pose, a reason, a cause, or specific information about something intro-
duced in the previous sentence. The copula (e.g., da) after mono is fre-
quently dropped in this usage.
Mono followed by the quotative to, as in KS(C), Exs.(e) and (f), is used
in general statements or opinion. This mono could be dropped without a
change in meaning. Note that the copula da does not follow mono in
this use.
(+mono (DBJG: 257-61))