阅读表达（共5小题，每小题2分，满分10分）
阅读下面短文，请根据短文后的要求进行答题。（请注意问题后的字数要求）
[1] Teenagers who spend hours in front of the television may have a poorer diet as young adults, a new study suggests. It’s not clear, researchers say, whether television itself is the reason, but it is possible that things like snacking(吃零食) in front of the TV or seeing ads for junk food influence young people’s diets.
[2] The study included nearly 1,400 high school students. It showed that those who watched TV for five hours or more everyday had less-healthy diets than their students five years later. As a group, they ate fewer fruits and vegetables, but ate more fast food, snack products and fried foods.
[3] We’re not able to tell why, lead researcher Dr. Daheia J. Barr-Anderson said. But we do have some speculations. People who spend a lot of time in front of the TV, especially teenagers, may have more snacks. It may influence their long-term diet quality. It’s also possible that TV ads for fast food, sweets and snacks make teenagers eat more of those foods. TV time might also replace exercise time for some kids.
[4] The researchers found a clear relationship between TV time during high school and diet quality of the young. The heaviest TV viewers , and those who’d watched fewer than two hours everyday had the most fruits, vegetables.
[5] According to Barr-Anderson, the findings support experts’ advice that children should watch no more than two hours of television everyday. Parents should cut the TV time, Barr-Anderson said. She advised that parents set a good example by eating right, being physically active and controlling their own TV time.
【小题1】 Complete the following sentences according to the underlined one in paragraph 3. (no more than 5 words)
Some children may spend much time watching TV instead of .
【小题2】 What does the underlined word “It” in paragraph 2 refer to? (no more than 3 words)
【小题3】According to Barr-Anderson, what should parents do to set a good example for their children? (no more than 15 words)
【小题4】Fill in the blank in paragraph 4 with proper words. (no more than 6 words)
【小题5】What is the passage mainly about? (no more than 12 words)doing some exercise.
网友回答
(答案→)doing some exercise.
解析：
【小题1】文章中的replace意为“代替”。划线句子的意思是：对于一些孩子来说，看电视的时间也可能代替锻炼时间。问题中的instead of与replace同意，都是代替的意思，这里是同意转换的提问。锻炼用英语来说是do some exercise.而of是介词，介词后应用Ving形式，所以答案是doing some exercise.
【小题2】看划线it前面的一句话，意思是研究涵盖了大约1，400名中学生。It后的单词show的意思是显示，展示的意思。所以it指代的是the study研究。
【小题3】从文章中最后一段最后一句话She advised that parents set a good example by eating right, being physically active and controlling their own TV time.
可知家长应通过合理饮食，积极锻炼身体和控制自己看电视的时间来为孩子设立一个好榜样。Should为情态动词，后应跟动原，所以答案是They should eat right, be physically active and control their own time.
【小题4】此题考查形容词的最高级。文章中the heaviest TV viewers是“看电视时间最多的人”的意思，根据文章，应是看电视最多的人吃的垃圾食物最多。而本文又是一般过去式，所以题中的动词应用ate,答案是ate the most junk food.
【小题5】整篇文章都在说明：研究表明看电视时间的长短与饮食之间的关系问题，所以答案是A new study showing the relationship between TV time and diet.