题目内容
Read the article carefully and answer the questions.
Could getting a good night’s sleep avoid putting on weight for children?
According to a new study, putting preschoolers in bed by 8 P.M. could reduce their chances of becoming overweight later in life by half. Preschoolers are children around the age of 4 or 5.
The researchers from Ohio State University wrote their findings in the Journal of Pediatrics. They have found that young children who go to bed after 9 P.M. are twice as likely to be obese later in life. The lead author of the study is Sarah Anderson. She says that it’s very important for parents to create a bedtime routine for their children.
How was the research conducted? Researchers chose 977 children for it. These children are part of a larger project called the Study of Early Child Care and Youth Development. The project follows healthy babies born in 1991 in ten U.S. cities. In order to have a clearer picture of the results, researchers then divided the children into three groups:
*those who went to bed by 8 P.M. or earlier;
*those who went to bed between 8 P.M. and 9 P.M.;
*those whose bedtimes were after 9 P.M.
When these children turned 15 years old, the researchers looked at the results of the study. Of those with the earliest bedtimes, only one out of ten was obese. Of those who went to bed between 8 and 9 at night. 16 percent of the children became obese. And out of those with the latest bedtimes, 23 percent of the children became obese.
“Having a usual bedtime routine can lower children’s risk of becoming overweight. Besides, as usual, early bedtime is also likely to have positive effects on behavior and social development,” said Professor Anderson.
1.Where were the researchers from? (within 6 words)
2.How many children were chosen for the research? ( within 2 words)
3.Why did the researchers divide the children into three groups? (with 9 words)
4.When did the researchers look at the results? ( within 8 words)
5.Do children who have a usual bedtime routine have a lower risk of becoming overweight? ( within 3 words)
每课必练系列答案
巧学巧练系列答案My name is Molly. I work in a library. Here are the rules of the library. ▲Don’t bring any bags into the reading room. ▲Don’t eat in the reading room. ▲Keep quiet in the library. Don’t answer the phone in the reading room. ▲You can borrow three books at one time and you can keep them for one month. ▲You should keep the books clean. ▲If you lose the books, you must pay for them. |
My name is Amy. I am a student. Here are the rules in my school. ▲Don’t be late for class. ▲Don’t eat in class. ▲Don’t fight. ▲Don’t run in the hallways. ▲Wear the school uniform on school days. |
根据材料内容选择最佳答案。
1.If Leo goes to the library, he can _______.
A. eat apples in the reading room
B. borrow three books at one time
C. take his bag into the reading room
D. answer the phone in the reading room
2.If Jack borrows some books from the library, he can keep them for _______.
A. a week B. a month
C. five days D. two months
3.The underlined words “pay for” mean “________” in Chinese.
A. 归还 B. 出示
C. 出售 D. 赔偿
4.Amy tells us ________ rules in her school.
A. three B. four
C. five D. six
5.Which of the following（下面） is TRUE（正确的）?
A. Amy can run in the hallways at school.
B. Amy can’t talk with her classmates in class.
C. Amy wears the school uniform five days a week.
D. Molly is a student and follows the rules of the library.