19.
【连题】 根据以下材料回答第1~5题:
20.
The plane was_________.
A.flying some businessmen to London
B.on a regular flighy to London
C.returning from a trade fair
D.bound for Carlisle
21.
What happened when the plane was nearing Carlisle?
A.The pilot misread the signals from Ground Control.
B.Ground Control failed to send out right instructions
C.The pilot got a report of terrible weather.
D.The engines broke down
22.
According to the passage, the plane crashed at_________ .
A.a place in southern England
B.a place of historical interest
C.a military training camp
D.a camp near London
23.
The news report tells us that when the crash occurred_________.
A.the ambulances and firemen arrived quickly
B.none of the passengers was killed
C.no additional help was necessary
D.help was tong delayed
24.
From what Mr. Collins said, we can know that he_________ .
A.had only an incomplete picture of what happened
B.heard and saw nothing at all
C.talked to the pilot
D.was once a pilot
25.
【连题】 根据以下材料回答第1`5题:
Online distance learning (网上远程教育) is an instructional system which connects learners with educational resources. Students work on their own at home, at work, or at school and communicate with faculty and other students by means of e-mail, electronic meetings, videoconferencing, chat rooms, instant messaging and other forms of computer-based communication. There are both advantages and disadvantages to online distance learning.
There are many benefits to using online distance learning environments. Online education is available all the time, anywhere and to all people. However, there are weaknesses for some learners. The online learner only has the written text and no other face-to-face hints. This may confuse the learner and cause misunderstanding. While distance learning allows for an openness, it is also difficult because it is done by e-mail messages and writing, and therefore may take more time than face-to-face learning. Sometimes the messages can be overwhelming for many online students.
Universities, colleges and schools use online distance learning environments. These are important for students who may be unable to attend classes for various reasons like illnesses or busy everyday schedules. Some learners just want to further their studies at home. They enjoy the convenience of home learning as they take regular programs or enrichment classes.
Online courses keep learners very occupied at all hours of the day .There are a great many nessages and other online resources to read and respond to . Most learners have regular jobs or attend regular school classes on ground as well . However, the benefits are clear. Online distance learning is becoming very popular. Some online classes have become a profitable business as they replace regular traditional means of learning.