If you ask some people, “How did you learn English so well?”you may get a surprising answer:“In my sleep!”

　　These are people who have taken part in one of the recent experiments to test learn-while-you-sleep methods (方法), which are now being tried in several countries, and with several subjects, of which English is only one.

　　Specialists(专家) say that this sleep-study method speeds language learning tremendously(巨大地). They say that the average person can learn two or three times as much during sleep as in the same period during the day－and this does not affect(影响) his rest in any way. A word of warning, however: sleep-teaching will only hammer into your head what you have studied already while you are awake.

　　In one experiment, ten lessons were broadcast(广播) over the radio at intervals of a fortnight ( two weeks). Each lesson lasted twelve hours－from: 8 p. m. to 8 a. m. The first three hours of English grammar and vocabulary were given with the student awake. At 11 p. m. a soothing (起镇静作用的) lullaby (催眠曲) was broadcast to send the student to sleep and for the next three hours the radio whispered the lesson again into his sleeping ears. At 2 a. m. a sharp noise was sent over the radio to wake the sleeping student up for a few minutes of revision (repeating a lesson ). Then he was lulled back to rest again while the radio purred on. At 5 o'clock his sleep ended and he had to go through the lesson again for three hours before his hard-earned breakfast.

1．Compared with other methods of learning, the learn－while you－sleep method is ________ .

[　　]

2．During sleep-teaching you can ________ .

[　　]

A．learn grammar and vocabulary that you never heard about before

B．learn how to sleep better

C．learn how to sleep less

D．listen to lessons again to know them better

3．Sleep－teaching means listening to ________ .

[　　]

4．What was the total number of hours, asleep and awake, that students spent learning English during the experiment

[　　]

5．Which of these statements is TRUE according to the passage?

[　　]

A．English is the only subject that is taught by the sleep-study method.

B．Only specially clever students can learn by the sleep-study method.

C．At the time of writing there had been only one sleep-study experiment.

D．Specialists seem to think that the sleep-study method is a good way to learn.

Your homework habits might be affecting your grades. Are you feeling tired or bored when it comes to homework time? Are you arguing with parents about your grades? You can change the way you feel by taking better care of your mind and your body. Get the sleep you need.
Studies show that teens' natural sleeping habits are different from those of adults. This often causes less sleep among teens, since they tend to have trouble going to sleep at night, and have trouble waking in the mornings. You can avoid some of the problems that come with less sleep by changing some of your nighttime habits.
Improve your memory
A great way to improve your homework habits is to improve your memory with brain exercise. There are many theories and ideas about improving memory, but there is one mnemonic（记忆的） method that has been around since ancient times. Ancient accounts show that early Greek and Roman orators used the “loci” method of remembering long speeches and lists. You may be able to use this method to improve your memory at test time.
Fight the desire to delay
Do you get the sudden desire to feed the dog at homework time? Don't fall for it! Delay is like a little white lie we tell ourselves. We often think we'll feel better about studying later if we do something fun now, like playing with a pet, watching a TV show, or even cleaning our room. It's not true.
Avoid repetitive(重复的) stress
During text messaging, Internet surfing, and computer writing, you are using your hand muscles in all new ways, and you're very easily to be influenced by something dangerous or the repetitive stress injury. Find out how to avoid pain in your hands and neck by changing the way you sit at your computer.
【小题1】What differences between the teens and adults are mentioned in the passage?