The chairman's visiting the warehouse today,so keep on your toes and be ready answer some questions.A.to B.for C.on D.of 题目和参考答案——青夏教育精英家教网—

题目内容

The chairman's visiting the warehouse today,so keep on your toes and be ready_____answer some questions.

A.to B.for C.on D.of

解析：be ready to do sth.

be ready for sth.为某事做准备

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请在横线上写出这些语块的汉语或英文表达：

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　　Spending time online is normal behavior for teenagers. But too much Internet use by teens – or too little, for that matter – might be related to depression (抑郁), a new study finds.

　　The findings, reported in the Journal of Pediatrics, do not mean that the Internet is to blame. For on e, teens in the study who spent no time online were also at increased risk of depression symptoms (症状). Instead, the researchers say that both heavy Internet use, and non – use, could show that a teenager is having a hard time.

　　For the study, Dr. Pierre – Andre Michaud and his colleagues at the University of Lausanne, Switzerland, surveyed 7, 200 individuals ages 16 to 20 about their Internet use.

　　Those who were online more than two hours per day were considered “heavy” Internet users, while those online anywhere from several times per week to two hours per day were considered “regular” users.

　　The teenagers also answered a number of health – related questions, including some standard questions about “depressive tendencies” (抑郁倾向) that show how often a person feels sad or hopeless. Compared with regular Internet users, the study found, kids who were heavy users or non – users were more likely to be depressed or very depressed.

　　Among boys, heavy users and non – users were both around one – third more likely to have a high depression score, compared to “regular” users. Among girls, heavy Internet users had an 86 percent greater chance of depression, while non – users had a 46 percent compared to regular users.

　　Since teenagers typically go online to connect with friends. The researches find that those who are never online may be more socially isolated.

　　1. Which is TRUE according to the passage?

　　A. Teenagers never go online are good students.

　　B. Teenagers never go online may get depression.

　　C. Surfing the Internet for teenagers is bad behavior.

　　D. Internet is the reason of teenager’s depression.

　2. How long does the writer suggest teens to go online per week?

　　A. Less than 14 hours.

　　B. More than 14 hours. www.

　　C. More than 20 hours.

　　D. Less than 20 hours.

　　3. The purpose of Dr. Michaud and colleagues’ study is to know ______________.

　　A. the actual time of teenagers learning online

　　B. the actual number of teenagers playing online

　　C. the influence on school study about teenagers online

　　D. the relationship between Internet use and depression

　　4. What’s the meaning of the word isolated in the last paragraph?

　　A. Independent. B. United. C. Separate D. Humorous.

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