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] When it comes to protecting the privacy of their children, US parents give social networks a failing grade.

    [2] Three out of four parents believe social networks are not doing a good job of protecting kids' online privacy. The survey was conducted for Common Sense Media, a nonprofit organization dedicated to helping families surf the world of media and technology. 92 percent of parents said they are concerned that children share too much information online, and 85 percent said they are more concerned about online privacy than they were five years ago.

    [3] The poll found a great deal of concern about gee-location services which pinpoint, someone's whereabouts. 91 percent of parents said search engines and social networking sites should not be able to share the physical location of children with other companies until parents give authorization.

    [4] The results present a clear divide between the industry's view of privacy and the opinion of parents and kids. Common Sense Media chief executive and founder James Steyer said: "American families are deeply worried about how their personal information is being used by technology and online companies. However, the companies appear to be keeping their heads deep in the sand."

    [5] Technology companies need to step up but parents, children, schools and government also need to do more, he said. "Parents and kids have to educate themselves about____," he said. "Schools should teach all students and their parents about privacy protection. And finally, policymakers have to update privacy policies for the 21st century."

1. What is the main idea of the passage? （within 10 words）

2. Which sentence in the passage can be replaced by the following one?

   The survey shows that common people and the industry have different opinions about privacy.

3. Please translate the underlined sentence in the fourth paragraph into Chinese.

4. Please fill in the blank in the last paragraph with proper words to make the sentence complete. （within 10 words）

5. Please give the readers at least three tips on protecting their privacy on line. （within 30 words）

假如你是中学生李华，你的美国朋友Jack在上次给你的电子邮件中抱怨自己最近眼睛近视了。请你给他用英语回一封电子邮件，内容如下：

1、介绍一下你们班同学的情况；

2、分析一下造成你们班这种情况的原因：

    3、帮Jack出点儿保持眼睛健康的主意。

注：1、字数120—150：邮件的开头和结尾已为你写好。

    2、近视：shortsighted   adj.    shortsightedness   n.

Dear Jack,

_________________________________________________________________________

                                                           Yours sincerely

                                                                  Li Hua

It took many hours to convince John __________ his wife’s mistake.

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

The world-famous tennis player __________ in an important match, which disappointed most of his fans.

A. won                 B. was won            C. defeated               D. was defeated

__________ to the right, you will find the house you are looking for. You can’t miss it.

A. You turn                 B. Turn           C. Turning             D. Turned

I have no direction; I guess I’ll just go ___________ the wind takes me.

A. whatever              B. however             C. whenever             D. wherever

The Great Wall is __________ tourist attraction that millions of people pour in every year.

A. so a well-known                                     B. a so well-known

C. such well-known a                                   D. such a well-known

__________ what the six blind men said sounded!

A. How foolishly          B. How foolish            C. What foolish            D. What fool

--- Do you need any help, Lucy?

--- Yes. The job is __________ I could do myself.

A. less than         B. more than           C. no more than                 D. not more than

--- Can those __________ at the back of the classroom hear me?

--- No problem.

A. seat          B. sit             C. seated            D. sat