[单项选择]The two reputable hydrogeologists drafted some highly optimistic projections—with the ------- that these were speculative and should of course be tested.


A. caveat
B. analysis
C. hypothesis
D. precis
E. (E) imprimatur

[单项选择]

Passage Two
Some people think they have an answer to the troubles of automobile crowding and dirty air in large cities. Their answer is the bicycle, or "bike."
In a great many cities, hundreds of people ride bicycles to work every day. In New York City, some bike riders have even formed a group called Bike for a Better City. They claim that if more people rode bicycles to work there would be fewer automobiles in the downtown section of the city and therefore less dirty air from car engines.
For several years this group has been trying to get the city government to help bicycle riders: For example, they want the city to draw bicycle lanes on some of the main streets, because when bike riders must use the same lanes as cars, there are accidents. Bike for a Better City feels that if there were special lanes more people would use bikes.
But no bicycle lanes have been drawn. Not everyone thinks it is a good idea--they say it will slow t
A. Traffic Crowding in New York City
B. Air Pollution in New York City by Cars
C. Special Lanes for Passengers
D. A Solution to Traffic Problems in New York

[单项选择]In some speech community, two languages are used side by side with each having a different role to play, this is __________.


A. pidgin
B. creole
C. diglossia
D. bilingualism

[单项选择]

Passage Two
Some years ago industries had more freedom than they have now, and they did not need to be as careful as they must today. They did not need to worry a lot about the safety of the new products that they developed. They did not have to pay much attention to the health and safety of the people who worked for them. Often new products were dangerous for the people who used them; often conditions in the work place had very bad effects on the health of the workers.
Of course sometimes there were real disasters which attracted the attention of governments and which showed need for changes. Also scientists who were doing research into the health of workers sometimes produced information which governments could not ignore. At such times, there were inquiries into the causes of the disaster or the problems. New safety rules were often introduced as a result of these inquiries; however, the new rule; came too late to protect the people who died or who becam
A. testing new products
B. designing new products
C. controlling the sale of product
D. inspecting work places

[单项选择]Some polls show that roughly two-thirds of the general public believe that elderly Americans are ______ by social isolation and loneliness.
A. reproached
B. favored
C. plagued
D. reprehended

[单项选择]The two countries achieved some progress in the sphere of trade relations, traditionally a source of ______ irritation.
A. mutual
B. optional
C. neutral
D. parallel

[单项选择]If two men suspected for some reason that they have a common ancestor,______.


A. we can decide according to their family tree
B. we can find the truth from their genetic markers
C. we can compare the differences in their Y chromosome
D. we can look for written records to prove their relationship

[单项选择]If two men suspected for some reason they have a common ancestor, ______.


A. we can decide according to their family tree
B. we can find the truth from their genetic markers
C. we can compare the differences in their Y chromosome
D. we can look for written records to prove their relationship