单选题
Daylight Saving Time begins on Monday, April 3, 2005. People in most parts of the United States will turn their clocks ahead one hour. The official(正式的) time to turn your clock ahead is early in the morning, April 3. Two am becomes three am. Sunday will have only 23 hours. (Most people change their clocks before they go to sleep Sunday night. ) In the fall, people turn their clock back an hour. This saying helps people remember which way to turn the clock""Spring ahead; fall back. "(Spring and fall each have two meanings here. ) We use Daylight Saving Time in order to save electricity (电). We need one less hour of light from electricity each day in the summer. Arizona, Hawaii, and parts of Indiana do not use Daylight Saving Time. Not every country uses Daylight Saving Time, either. Countries near the equator(赤道) have no reason to use Daylight Saving Time. Their hours of daylight and darkness are always nearly the same. There is no Daylight Saving Time in Japan, China, or India. Countries south of the equator have quite different seasons. They are ending their Daylight Saving Time now.
单选题
Daylight Saving Time is used in most parts of the United States.
【正确答案】
A
【答案解析】题句意为“美国大部分地方都采用夏令时”。通读短文，我们发现第一段第二句指出：People in most parts of the united States will turn their clocks ahead one hour(美国大部分地区的人都会将钟表调快一小时)，这说明美国大部分地区都采用夏令时，故题句是正确的。而短文第五段第一句又指出：Arizona，HaWall，and parts of Indiana do not use Daylight Savirlg Time(亚利桑那州、夏威夷州和印第安纳州的部分地区不用夏令时)，其意即是只有少数地方不采用夏令时，进一步说明题句是正确的。
单选题
Most Americans turn their clock ahead early in the morning of April 3, 2005.
【正确答案】
B
【答案解析】题句意为“大多数美国人在2005年4月3日早上将钟表调快”。通读短文，我们发现短文第一句指出夏令时始于2005年4月3日，而第二段第一句又明确指出调整时钟的正式时间是4月3日清晨。但该段最后一句又指出，大多数美国人在周日晚上睡觉前就把钟表调好(Most people change their clocks…Sunday right)，它与题句之间的差异显而易见，故题句是错误的。
单选题
Daylight Saving Time is used in the summer.
【正确答案】
A
【答案解析】题句意为“夏令时用于夏季”。短文第三段第一句指出：In the fall，people turn their clock back an hour(到了秋季，人们将时钟调慢一个小时)，这显然意味着不再采用夏令时。而该段第二句又指出：Spring ahead；fall back(春季调快，秋季调慢)，说明夏令时只在夏季采用，故题句是正确的。
单选题
Daylight Saving Time on both sides of the equator begins at the same time.
【正确答案】
B
【答案解析】题句意为“赤道两边的夏令时都始于相同的时间”。短文第五段第三句指出：Countries near the equator have no reason to use Daylight Savillg Time(赤道附近的国家无需用夏令时)。该段还指出并非所有国家都采用夏令时。题句与此意明显不符，因此是错误的。
单选题
Some people are against the use of Daylight Saving Time.