Looking at the undone homework on his desk always makes David Grey feel uncomfortable. More often than not, David leaves his homework behind and surfs the Internet or watches TV instead, waiting until the last minute." But the longer 1 wait," says David, aged 15, "the more I worry."

   Everyone procrastinates (拖延) because they want to feel good now. The way to do that is to avoid the task. You can procrastinate on nearly anything, even enjoyable tasks such as planning a vacation. "Some people procrastinate cleaning. Some people procrastinate by cleaning," says Professor Peter Stone. Research has shown that the top tasks young people procrastinate are studying and going to bed." One big cause for procrastination is that people are afraid of failure, of not meeting others' expectations," Stone adds.

   Some people believe that procrastination will make them thrive. But researchers disagree. "I did a study several years ago, asking procrastinators to finish a task in a certain period of time," says Stone. "They did worse than non-procrastinators: they made more mistakes and they took longer. But they thought they did better." No matter what the cause is, procrastination is usually not going to be good for you. For example, bedtime procrastination can lead to sleeplessness, which in turn can cause many other health problems.

   For those who need some drives to stop procrastinating, the best advice might be to take action first. If you've been procrastinating on forming a habit of exercise, just put on your walking shoes. A little bit of progress will get you moving.

   Next, find something to help you remember to take action. If you want to go to bed at 10:30 pm, you might set a timed dimmer switch (渐暗开关) at 10 pm. When the lights are dimmer, you'll start going to bed. It works for most people.

   Finally, reward yourself every time you make progress. For example, after you've run 3 km, enjoy your favourite ice-cream. But be careful: it won't work the other way around.

37. What can be the best title of this passage?

A．	A day of a procrastinator
B．	Procrastination: yes or no?
C．	Say goodbye to procrastination
D．	Want to feel good now? Procrastinate!

38. What is the main reason for people's procrastination?

A．	They want to avoid doing hard work.
B．	They fear to lose and let others down.
C．	They need to finish the top tasks first.
D．	They plan to do the enjoyable tasks last.

39. The underlined word "thrive" in paragraph 3 most probably means ________.

A．	think faster	B．	work more successfully
C．	give up more easily	D．	worry too much

40. What should David do if he wants to stop procrastinating on a writing task?

A．	Put on some soft music to help think actively.
B．	Enjoy a favourite ice-cream, and then start writing.
C．	Search the Internet for enough ideas before starting.
D．	Pick up a pen and write down possible starting sentences.