The exact year of Christ's birth is not recorded, but the calendar began on the supposed date divides time into B.C. (before Christ) and A.D. (in the year of our Lord). Nor was the exact day of his birth known. For the first 300 years his birthday was celebrated on different days. It was not until the year 354 that December25thwas chosen.
Christmas music is loved by all who hear and sing it every year. Carols, bells, and merry music have been a part of Christmas for centuries. Every Christmas Eve the bells ring to call people to church services. The most famous sleigh bells in the world belong to Santa Claus.
Christmas is a family festival. In the United States, no distance seems too great if it enables one to join the family circle for the holiday. All schools close for two weeks, parents welcome home their children and grandchildren and often open their doors to friends and strangers.
The calendar began ______.
A. in the exact year of Christ' birth
B. on the exact date which divides time into B.C.and A.D.
C. on December 25th
D. on the chosen date
查看答案
A.happierB.easierC.cheaperD.safer
A. happier
B. easier
C. cheaper
D. safer
It is very difficult to evaluate another person' s performance objectively. For example, Senta recently wrote irresponsible remarks about her instructor because she- was failing to pass the course. Her friend Sam wrote a marvelous description of the same instructor because he received an A in the course. Both Senta and Sam were not fairly evaluating the instructor. They were affected by the grades they were earning and were biased in their judgments.
Another irresponsible form. of evaluation occurred when James rated his instructor excellent because the instructor is "easy". He gives few tests and only assigns one paper during the entire term. His lectures are often full of jokes and endless stories. On the other hand, James rated Professor Jones poor because he assigns text work dally, gives pretest and post test reviews, and packs his lectures with a lot of information.
Student should evaluate their instructors______.
A. by discussing opinions with classmates
B. by rating the instructor's interest in students' problem
C. by discussing opinions with instructors
D. by rating instructor's humorous remarks
The evolution of artificial intelligence is now proceeding so rapidly that【C1】______the end of the century cheap computers【C2】______larger than portable typewriters will【C3】______that will be able to solve almost any【C4】______faster and more efficiently than we can. "Intelligence"in a machine,【C5】______in a human, is best【C6】______as the ability to solve complex problems swiftly. This【C7】______involve medical analysis and prescriptions,【C8】______legal matters【C9】______short, replacing the profession of lawyers completely or in【C10】______war-games:in other words【C11】______governments whether【C12】______not to go to war.【C13】______computers have already intensified the deadlines of weapons, the prospect for the future is that they will【C14】______the more beneficial role of preventing wars.【C15】______asked to esti- mate the chances of victory, the computer will analyze facts【C16】______from the life-long military expert with his optimistic sense and military enthusiasm.
When the same figures are fed into the emotionless machine each to be weighed with【C17】______objective and then judged【C18】______each other, the【C19】______, far more often than【C20】______in human deci- sion-making, will be:" You start this war you will lose. "
【C1】
A. at
B. by
C. in
D. on
听力原文:M: Come in, come in! Can I help you?
W: Professor Turner, are you giving your Advanced Geology course again next semester?
M: Yes.
W: I wonder if I could enroll in it, I know it's a graduate course and I' m only a junior, but. . .
M: Aren't you a bit young? I've allowed qualified seniors to take the course and they usually have a hard time to keep up.
W: I know, but the geology of the American West is my favorite interest and I've read a lot in the field. Last semester I took Professor Burman's course and I didn't find it challenging enough.
M: I see. You certainly aren't one of those students who are out for easy grades.
W: I should say not. I really want to learn something.
M: Well, I'll speak to Professor Burman, if he thinks you' re ready, I'll let you enroll.
W: Oh, thanks. Prof. Turner, that's very nice of you.
Why does the woman talk to the professor?
A. She wants him to recommend books.
B. She wants to apply to graduate schools.
C. She wants to take an advanced course.
D. She wants him to give her a good grade.