1 . Some 70 countries, mostly in the Americas and Europe, apply Daylight Saving Time during the summer months. Europe’s clocks will move forward once again this weekend. Yet last week the European Union voted to end this long-established practice from 2022.

In the 18th century, Benjamin Franklin came up with the idea of moving the clocks forward in the summer. But the practice really took hold during World War I and since then it has brought several benefits. It might increase consumer spending, as shoppers are encouraged to stay out later into the evening. It might even reduce crime. As the saying goes, “The longer the daylight, the less I do wrong.”

In spite of all that, clock-changing is unpopular. When the European Union ran a poll（民意调查）among its citizens, it got nearly 5 million responses. Over 80% want to scrap clock-changing, and for good reasons. Although it has not been proven eventually, many scientists think that changing the clocks messes up humans’ biological clock, which may increase the chances of heart attacks and strokes. It could cause car accidents to increase, as drivers who are used to going to work in the daylight, for example, suddenly have to do so in the dark. In addition, many businesses find it extremely inconvenient that countries change their clocks at different times.

So, will Europeans choose to stick with winter or summer time? This has not been decided. It could be that each country will choose for itself, though each is likely to take careful note of neighbors’ decisions. The benefit, it seems, is not so much in deciding how long the evening is, or how dark the morning. It is in keeping it consistent throughout the year.

1. What can we learn from paragraph 2?

A．Clock-changing has more benefits than expected.

B．People adopted clock-changing after World War I.

C．Clock-changing makes people sleepy in the day time.

D．People might spend more money after clock-changing.

2. Which of the following best explains “scrap” underlined in paragraph 3?

A．Favor.	B．Stop.
C．Obey.	D．Delay.

3. What can we infer about clock-changing in Europe?

A．People will continue to use it.

B．More changes will be added to it.

C．It remains to be seen whether to use it.

D．The countries will change their clocks at same times.

4. What is the author’s purpose in writing the text?

A．To recall the history of clock-changing.

B．To stress the benefits of clock-changing.

C．To show people’s opinions on clock-changing.

D．To introduce the bad effects of clock-changing.