The toothless, or baleen, whales belong to the suborder of Mysticeti. This is a group of generally large whales, formerly abundant in all the oceans of the world. Though reduced by hunting, most species are still found along the coasts of the United Stated and Canada. All but two of the Mysticeti reach 40 feet or more at maturity, with the blue whale running up to 100 feet and tipping the scales at up to 130 tons. This whale is by far the largest creature that has ever lived on earth, 4 times the weight of the largest dinosaur, 30 times that of an elephant.
With what topic is the passage mainly concerned?
A.Breeding habits of whales.
B.Differences between whales.
C.Efforts to preserve whales.
D.The intelligence of whales.
Two things emerge in the study of students’attitudes toward online learning: individual situations impact students’ perceptions of computer-based learning, and students’ varied individual characteristics make it difficult to define their perceptions conclusively. For example, some students have their own computers, while others rely on computer labs. Such variation in computer access can result in attitudinal differences. In addition, the purpose of computer use varies. Distance education courses, for example, use computers in different ways than traditional classrooms, which can also affect students’ perceptions. A wide variety of achievement levels and attitudes exist among both online and traditional learners. Although an illusory “typical learner” exists, a variety of factors, including students’ gender, age, and motivation, could explain different reactions among the student population.
1).According to the passage, what does "digital learners" mean?()
A、Learners of mathematics
B、Learners of information technology
C、Computer users
D、Online learners
2).What will make online learning more and more popular?()
A、The crowded classrooms
B、The lower cost of computers
C、The increase of computer users
D、The previous generations interest in digital communication
3).Which of the following is the main factor that makes it difficult to define students'' perceptions of online learning definitely?()
A、Learners'' varied locations
B、Learners'' varied characteristics
C、Learners'' varied communication skills
D、Learners'' varied experiences
4).What is the author''s attitude towards online learning?()
A、cautious
B、indifferent
C、positive
D、negative
5).Who may become online learners?()
A、Mainly teenagers
B、Mostly college students
C、Only working people with their own computers
D、People of all ages and backgrounds
The young man goes ___3___. At the next corner he sees the boy with the stolen watch ___4___ his hand. “Would you like to buy a fine watch, sir?” he says in a low voice. “It is only fifty pounds.” The young man pays at once, and goes back to his room. His friend takes a look ___5___ the watch and says, “This watch isn't worth even ten pounds. I think that they planned this together.” When he hears this, the young man is very disappointed.
1)、A.at
B.asks
C.hand
D.away
E.in
2)、A.at
B.asks
C.hand
D.away
E.in
3)、A.at
B.asks
C.hand
D.away
E.in
4)、A.at
B.asks
C.hand
D.away
E.in
5)、A.at
B.asks
C.hand
D.away
E.in
A、at
B、among
C、from
D、no word is needed
A、Scotland
B、England
C、Wales
D、Northern Ireland
A.flourish
B.distinguish
C.perish
D.vanish