[单项选择]Daylight saving time was instituted to increase productivity.


A. reorganized
B. started
C. encouraged
D. taught

[单项选择]Daylight saving time was instituted to increase productivity.
A. reorganized
B. started
C. encouraged
D. taught

[单项选择]Daylight saving time was {{U}}instituted{{/U}} to increase productivity.
A. reorganized
B. started
C. encouraged
D. taught

[单项选择]Daylight Saving Time begin at 2


A. A．m. ______ in the United States every year. on the last Sunday of AprilB. on the first Sunday of AprilC. on the last Sunday of MayD. on the first Sunday of May

[单项选择]When did Daylight Saving Time become observed nationally


A. In 1966.
B. In 1960.
C. In 1948.
D. In 1939.

[单项选择]There is such a rapid increase in the number of private cars as to ______ a gas shortage.


A. causing
B. cause
C. caused
D. being caused

[单项选择]The increase in sales of professional hair-care products indicates that consumers are paying as much attention to their hair as to their skin.
A. 专业护发产品的增加表明消费者既关心护发，也关心护肤。
B. 专业护发产品销量的增加表明消费者既重视护肤，也重视护发。
C. 随着美发行业的发展，消费者越来越重视美发和护肤。
D. 随着美发行业的发展，消费者认为美发和护肤同等重要。

[单项选择]The expression "air time" in the last paragraph probably has the similar meaning of ______.


A. the broadcasting time on TV
B. time spent on a conversation
C. time spent on a specific topic
D. the chance to make responses

[单项选择]What aid will Britain increase


A. Overseas deployment aid.
B. Overseas development aid.
C. Overseas investment aid.
D. Overseas humanitarian aid.

[单项选择]Greater efforts to increase agricultural production must be made if food shortage （） avoided.
A. is to be
B. can be
C. will be
D. has been

[单项选择]They decided to abandon the saving plan after discussion.
A. give out
B. give up
C. give in
D. give off

[单项选择]

Improvements in labor productivity 56 increase wages and salaries. Wages and salaries 57 about 75 percent of all income in the United States. 58 , labor productivity is the major 59 of this (and all other) nations’ living standards. If labor productivity improves because of an advance in technology, the 60 of output increases 61 the need for additional labor. The dollar value of all goods increases 62 , which implies that consumers ultimately receive more income.
Entrepreneurs have a profit 63 to increase labor productivity. They do so by providing their workers with better equipment and creating more efficient ways for their workers to use that equipment. Entrepreneurs also have an incentive to discover new products that are more highly valued 64 to their cost of production.
Some of the largest increases in productivity occur 65 major technological advancements. The steam
A. fallen behind
B. fallen back
C. gone ahead
D. gone before