[单项选择]Professor Smith and Professor Brown will ______ in presenting the series of lectures on American literature.
A. alter
B. alternate
C. substitute
D. exchange

[单项选择]Professor Smith and Professor Brown will ______ in presenting the series of lectures on American literature.
A. alter
B. alternate
C. substitute
D. exchange

[单项选择]Unfortunately, when I dropped in, Professor Smith ______, so we only had time for a few words.


A. has just left
B. had just left
C. just left
D. was just leaving

[单项选择]The student is having a talk with Professor Smith because she wants to


A. know how to change her major
B. stop majoring in Computer Technology
C. know whether she should change her major
D. major in Computer Programming

[单项选择]

Professor Smith recently persuaded 35 people, 23 of them women, to keep a diary of all their absent-minded actions for a fortnight. When he came to analyse their embarrassing lapses (差错) in a scientific report, he was surprised to find that nearly all of them fell into a few groupings. Nor did the lapses appear to be entirely random(随机的).
One of the women, for instance, on leaving her house for work one morning threw her dog her earrings and tried to fix a dog biscuit on her ear. "The explanation for this is that the brain is like a computer,’ explains the professor. "People programme themselves to do certain activities regularly. It was the woman’s custom every morning to throw her dog two biscuits and then put on her earrings. But somehow the action got reversed in the programme." About one in twenty of the incidents the volunteers reported were these "programme assembly failures."
Altogether the volunteers logged 433 uninten
A. to keep track of people who tend to forget things
B. to report their embarrassing lapses at random
C. to analyse their awkward experiences scientifically
D. to keep a record of what they did unintentionally

[单项选择]Professor Smith explained the movement of light ________ that of water.
A. by analogy with
B. by virtue of
C. in line with
D. in terms of

[单项选择]Professor Smith continued his research work and {{U}}disregarded{{/U}} his colleague's advice.
A. ignored
B. deplored
C. explored
D. implored

[单项选择]Professor Smith discovered that ______


A. certain patterns can be identified in the recorded incidents
B. many people were too embarrassed to admit their absent-mindedness
C. men tend to be more absent-minded than women
D. absent-mindedness is an excusable human weakness

[单项选择]What do they think of Professor Smith's classes


A. Interesting.
B. Difficult.
C. Helpful.
D. Borin

[单项选择]Professor Smith' s new invention has created a great ______ on the campus.
A. sensation
B. selection
C. imitation
D. irrigation

[单项选择]In his study Professor Smith asked the subjects ______


A. to keep truck of people who tend to forget things
B. to report their embarrassing lapses at random
C. to analyze their awkward experiences scientifically
D. to keep a record of what they did unintentionally