问答题 1. Listen to the following passage. Altogether the passage will be read to you four times. During the first reading, which will be done at normal speed, listen and try to understand the meaning. For the second and third readings, the passage, except the first sentence, will be read sentence by sentence, or phrase by phrase, with intervals of fifteen seconds. The last reading will be done at normal speed again and during this time you should check your work. You will then be given ONE minute to check through your work once more.
Write on ANSWER SHEET ONE. The first sentence of the passage is already provided.
Now, listen to the passage.

What Is Healthy Sleep?

You know that sleep is vital to your physical and mental health, but how can you tell whether you're truly sleeping well? ______
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【正确答案】

【答案解析】[听力原文]

What Is Healthy Sleep?

You know that sleep is vital to your physical and mental health, but how can you tell whether you're truly sleeping well? On average, adults should optimally receive seven to nine hours of sleep each night, / but those needs vary individually. / Some people feel best with eight consecutive hours of sleep, / while others do well with six to seven hours at night and daytime napping. / Some people feel okay when their sleep schedule changes, / while others feel very affected even one night of insufficient sleep.