问题补充：
Section B
Directions: Read the following passage. Answer the questions according to the information given in the passage and required words limit. Write your answers on your answer sheet.
Want your kids to sleep better at night? Turn off the TV. That’s the conclusion of a new study from Fin;land showing that merely having a television on in the house, even if the kids aren’t actively watching it, can be enough to disturb their sleep patterns significantly.
Childcare specialists are very specific about the amount of hours whey should be watching. But few people have looked closely at what happens when a TV is simply on in the background – either being watched by an adult or, just as commonly, by no one at all.
In a study published in the Journal of Sleep Research, Finnish investigators tried to get at that question, surveying 321 parents of 5-and 6-year-old children to determine the families’ viewing patterns and the effect this had on the kids sleep habits.
All of the families in the study watched a pretty fair amount of TV, with at least one television in the house switched on for an average of 4.2 hrs. per day. On average a child actively watched TV for 1.4 of those hours and was passively exposed to TV for at least another 1.4 hrs. In 21% of the homes, the kids had a TV of their own in the bedroom.
All that exposure, it turns out, was doing the kids’ sleep patterns no favor. In general, the greater the number of the hours of passive or active viewing was, the more problems young children had falling asleep, staying asleep, waking up in the morning and avoiding fatigue during the day.
But not all TV viewing was equal. Watching TV lone or at bedtime had grester negative impact on sleep. Unusually high passive exposure --- 2.1 hrs. per day or more --- was particularly associated with sleep disturbances.
81. what do childcare specialists care more about when talking about children’s watching TV? (no more than 9 words)
82. what does the underlined words “that question” refer to? (no more than 15 words)
83. what’s the main purpose of the author to write this passage? (no more than 15 words)
84. what does the passage mainly talk about? (no more than 15 words)
81. the amount of hours and the kinds of shows.
答案：
(答案→)81. the amount of hours and the kinds of shows.
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