og 14

lynnezhou小白

那OG140题呢，140. Rock samples taken from the remains of an asteroid
about twice the size of the 6-mile-wide asteroid that
eradicated the dinosaurs has been dated to be 3.47
billion years old and thus is evidence of the earliest
known asteroid impact on Earth.
(A) has been dated to be 3.47 billion years old and
thus is
(B) has been dated at 3.47 billion years old and thus
(C) have been dated to be 3.47 billion years old and
thus are
(D) have been dated as being 3.47 billion years old
and thus
(E) have been dated at 3.47 billion years old and
thus are
Agreement; Idiom
Th e plural subject of this sentence, Rock samples,
requires plural verb phrases—have been dated and
are rather than has been dated and is. Th e idiomatic
way of expressing estimation of age is with the
phrase dated at.
A Th e subject and verbs do not agree; dated to
be … is not idiomatic.
B Th e subject and verb do not agree; the
conjunction and thus should be followed by
a verb.
C Dated to be is not idiomatic.
D As being is not idiomatic; the conjunction
and thus should be followed by a verb.
E Correct. Th e plural verbs match the plural
subject, and the wording of the sentence is
idiomatic.
Th e correct answer is E.

是因为不同的词有不同的搭配吗

Hystericalx

那OG140题呢，140. Rock samples taken from the remains of an asteroid
about twice the size of the 6-mile-wide asteroid that
eradicated the dinosaurs has been dated to be 3.47
billion years old and thus is evidence of the earliest
known asteroid impact on Earth.
(A) has been dated to be 3.47 billion years old and
thus is
(B) has been dated at 3.47 billion years old and thus
(C) have been dated to be 3.47 billion years old and
thus are
(D) have been dated as being 3.47 billion years old
and thus
(E) have been dated at 3.47 billion years old and
thus are
Agreement; Idiom
Th e plural subject of this sentence, Rock samples,
requires plural verb phrases—have been dated and
are rather than has been dated and is. Th e idiomatic
way of expressing estimation of age is with the
phrase dated at.
A Th e subject and verbs do not agree; dated to
be … is not idiomatic.
B Th e subject and verb do not agree; the
conjunction and thus should be followed by
a verb.
C Dated to be is not idiomatic.
D As being is not idiomatic; the conjunction
and thus should be followed by a verb.
E Correct. Th e plural verbs match the plural
subject, and the wording of the sentence is
idiomatic.
Th e correct answer is E.

是因为不同的词有不同的搭配吗

-- by 会员 lynnezhou小白 (2010/11/21 12:40:11)

我认为是因为at表示点时间，而at 40 to 44 million years是段时间，所以不正确
小白的举例表示的就是点时间，所以可以用at