Until the 1980s, the American homeless population comprised mainly older males. Today, homelessness strikes much younger part of society. In fact, a 25-city survey by the U. S. Conference of Mayors in 1987 found that families with children make up the fastest growing part of the homeless population. Many homeless children gather in inner cities; this transient and frequently frightened student population creates additional problems — both legal and educational — for already overburdened urban school administrators and teachers.

Estimates of the number of homeless Americans range from 350,000 to three million. Likewise, estimates of the number of homeless school children vary radically. A U.S. Department of Education report, based on state estimates, states that there are 220,000 homeless school-age children, about a third of whom do not attend school on a regular basis, But the National Coalition for the Homeless estimates that there are at least two times as many homeless children, and that less than half of them attend school regularly.

One part of the homeless population that is particularly difficult to count consists of the “throwaway” youths who have been cast of their homes. The Elementary School Center in New York City estimates that there are 1.5 million of them, many of whom are not counted as children because they do not stay in family shelters and tend to live by themselves on the streets.

Federal law, the Stewart B. McKinney Homeless Assistance Act of 1987, includes a section that addresses the educational needs of homeless children. The educational provisions of the McKinney Act are based on the belief that all homeless children have the right to a free, appropriate education.

1.It is implied in the first paragraph that ____.

A. there is a serious shortage of academic facilities.

B. homeless children are denied the opportunity of receiving free education.

C. the writer himself is homeless, even in his eighties.

D. many older homeless residents are going on strike in 25 cities.

2.The National Coalition for the homeless believes that the number of homeless children is _____.

A. 440,000    B. 110,000   C. 350,000　D. 1,500,000

3.One part of the homeless population is difficult to estimate. The reason might well be ____.

A. the homeless children usually stay outside school.

B. some homeless children are deserted by their families.

C. the homeless children are too young to be counted as children.

D. the homeless population is growing rapidly.

4.The McKinney Act is mentioned in this passage in order to show that ___.

A. the address of grade-school children should be located.

B. all homeless people are entitled to free education.

C. the educational problems of homeless children are being recognized.

D. the estimates on homeless children are hard to determine.

5.The passage mainly deals with ____.

A. the social status of older males.

B. estimates on the homeless population.

C. the legal problems of the homeless children.

　　D. the educational problems of homeless children.

The GUARANTEE ON THIS WATER HEATER IS IN EFFECT ONLY WHEN THE HEATER IS INSTALLED AND OPERATED IN ACCORDANCE WITH THESE INSTRUCTIONS. READ THESE INSTRUCTIONS THOROUGHLY BEFORE STARTING.

LOCATION:

　　Select a location accessible to water lines and power supply. Do not locate the heater where water lines could be subjected to(受…影响) freezing temperatures. It is recommended that the heater be located near the center of greatest hot water usage to prevent heat loss through the pipes.

ELECTRICAL CONNECTIONS:

　　Before any electrical connections are made, be sure that the heater is full of water and that the valve(阀门) in the cold water supply line is open.

OPERATION

When the switch is closed, the operation of this electric water heater is automatic. The thermostats are preset to the "HOT" setting to provide a water temperature of approximately 120oF to reduce the risk of being burnt.

MAITENACE

Shut off the electric power whenever the water supply is turned off.

Shut off the electric power, water supply and drain the heater completely to prevent freezing whenever the building is left unoccupied during the cold weather months.

SERVICE

The trip–free devices on this heater will cut off all power if temperature of water is above 190F. If there is no hot water after a reasonable period of time, check the main fuse(保险丝) box. In the event that the fuses have not blown, call a serviceman.

72.The location of the water heater shall ___________.

A. be close to water lines and power supply

B. be subjected to low temperature

C. be in the centre of the house

D. have a longer distance to hot water usage.

73.Before any connection of power , make sure that one thing you have to do is _____.

A. to have the heater in the water     B. to open the cold water inlet valve.

C. to shut off the thermostats         D. to replace wiring diagram

74.When you are not using the heater in winter months, it is better for you to________.

A. have the tank full of clear water    B. drain the heater

C. to leave it untouched             D. prevent it from losing heat

75. What will happen to the heater when the temperature of water is above 190F?

A. it will cause damage         B. It will break off automatically.

C. It will produce cold water.    D. It will blow the fuse.

The GUARANTEE ON THIS WATER HEATER IS IN EFFECT ONLY WHEN THE HEATER IS INSTALLED AND OPERATED IN ACCORDANCE WITH THESE INSTRUCTIONS. READ THESE INSTRUCTIONS THOROUGHLY BEFORE STARTING.
LOCATION:
　　Select a location accessible to water lines and power supply. Do not locate the heater where water lines could be subjected to(受…影响) freezing temperatures. It is recommended that the heater be located near the center of greatest hot water usage to prevent heat loss through the pipes.
ELECTRICAL CONNECTIONS:
　　Before any electrical connections are made, be sure that the heater is full of water and that the valve(阀门) in the cold water supply line is open.
OPERATION
When the switch is closed, the operation of this electric water heater is automatic. The thermostats are preset to the "HOT" setting to provide a water temperature of approximately 120oF to reduce the risk of being burnt.
MAITENACE
Shut off the electric power whenever the water supply is turned off.
Shut off the electric power, water supply and drain the heater completely to prevent freezing whenever the building is left unoccupied during the cold weather months.
SERVICE
The trip–free devices on this heater will cut off all power if temperature of water is above 190F. If there is no hot water after a reasonable period of time, check the main fuse(保险丝) box. In the event that the fuses have not blown, call a serviceman.
72.The location of the water heater shall ___________.
A. be close to water lines and power supply
B. be subjected to low temperature
C. be in the centre of the house
D. have a longer distance to hot water usage.
73.Before any connection of power , make sure that one thing you have to do is _____.
A. to have the heater in the water     B. to open the cold water inlet valve.
C. to shut off the thermostats         D. to replace wiring diagram
74.When you are not using the heater in winter months, it is better for you to________.
A. have the tank full of clear water    B. drain the heater
C. to leave it untouched             D. prevent it from losing heat
75. What will happen to the heater when the temperature of water is above 190F?
A. it will cause damage         B. It will break off automatically.
C. It will produce cold water.    D. It will blow the fuse.

The county, ________ in the north of Shanxi, has a history of more than 1,400 years.

A. located　　　   B. to be located　 　　 C. being located 　　 D. locating