SECTION B    SKIMMING AND SCANNING [5 MIN.]

In this section there are five passages with a total of ten multiple-choice questions.    Skim or scan them as required and then select your answers to the questions.

TEXT F

First read the following questions.

81. According to the passage, the canals allowed _____.
A. the prevention of floods
B. seawater to enter farmlands
C. seawater to drain from the land
D. the limestone to be exposed to air
正确答案是

82. In their nurseries, Tortugas shrimp require _____.
A. rapidly moving water
B. a high, steady water temperature
C. a heavy concentration of salt water
D. some fresh water mixed with the salt water
正确答案是

Now read Text F quickly and select your answers.

The record of people's manipulation of nature in the Florida Everglades is replete with examples of remedies that were never fully analyzed before they were applied -- remedies that inevitably turned out to be more disastrous than the troubles they were intended to cure.    It was people's judgment, for example, that the rich muck of South Florida was going to waste under waste; so people drained off the water only to discover that muck, exposed to the heat of the sun, oxidizes into thin air.    In some agricultural districts now as much as 40 percent of the organic soils are gone.    Some farmers will be ploughing limestone by the year 2000.    But they won't be raising any crops.    Similarly, drainage undertaken to increase food production in one area has inhibited productivity in another; in periods of drought, the long canals became arms of the sea and salt water intruded on the land.    In 1945, salinity in the soil killed off 18,000 acres of vegetables in southeast Dade country.    Now increasing salinity in Florida Bay, caused by the decreasing outflow of fresh water from the Everglades, threatens the natural offshore nursery ground of the Tortugas shrimp and a '20 million annual commercial fishery.　

TEXT G

First read the following questions.

83. Women in restaurants are advised to put their purses _____.
A. under their arms
B. under their coats
C. on the floor between the legs
D. on the wrists
正确答案是

84. Using the umbrella handle to hook the bag often occurs in _____.
A. restaurants
B. theatres
C. New York City subways
D. toilet stalls
正确答案是

Now read Text G quickly and select your answers.

Purse Snatching

Purse snatching is an increasingly common crime.    There are estimated 50 to 100 purse snatchings each month in the New York City subways, the number often swinging widely because of the depredations of a single teenager.    When such a professional is in custody, the snatchings decrease by more than 50 a month.    One of the favored techniques is to stand between two subway cars and, as the train starts pulling out of the station, reach out and pull a free woman's purse.

Recently, a crime analysis officer for the New York Police Department found that purse stealing in Manhattan's top restaurants was up 35 percent over the previous year.    When a woman puts her purse on a vacant chair at a table or at her feet beside her chair, she is inviting a purse snatcher to take it.    purse snatchers often work in pairs.    When a target in a restaurant is sighted, one of them will create some kind of disturbance to gain the victim's attention.    While the woman is looking away from her table, the actual snatcher will lift the purse.    A popular technique is for the thief, man or woman, to carry an umbrella with the curved handle down.    The umbrella handle suddenly hooks the bag and in an instant it is on the thief's wrist, or under the coat over his arm if he is a man, and on its way out of the restaurant.    Police advise that women in restaurants keep their purses either on their laps or on the floor between their legs.
Other purse snatchers who operate in theaters are called "seat tippers", victimizing women who put their purses down on an adjacent empty seat.    Yet others specialize in snatching purses from ladies' rooms.    When a woman is in a toilet stall, her purse should never be placed on the floor or hung on the coat hook on the door.    Thieves simply dive under the door and grab the purse on the floor or stand on the toilet in the next stall and reach over and take the purse off the hook.    The snatcher has ample time to escape since the victim can't immediately pursue the thief.　

TEXT H

First read the following questions.

85. Many Japanese vehicles have their first "service" at a _____.
A. garage
B. factory
C. temple
D. workshop
正确答案是

86. Koalas are unique to _____.
A. France
B. Japan
C. the world
D. Australia
正确答案是