— How is the piece of music?
— It 　　　 wonderful. I want to listen to it again.
A. smells          B. looks          C. sounds         

— How is the piece of music?

— It 　　　 wonderful. I want to listen to it again.

A. smells          B. looks          C. sounds         

　　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.