8.This fish which is cheap but heavily polluted has been forbidden to be sold. Many people eat- ing this fish died        . (poison)

这种鱼虽然便宜但受到严重污染，因而已被禁止出售。许多人因吃过这种鱼中毒而死。

7.        in your business this year and get to know your break-even point?(difference)

为什么今年不改变一下你的公司并了解你的收支平衡点呢？

6. The rope         was slackened off as the tree was now well rooted.(place)

由于树木现在已经牢牢扎根,拉扯树木的绳索松下来了。

5.However, in using the results of such tests, the engineer must remember that they       . (apply)

  然而，在使用这些试验结果时，工程师须记住这些结果仅仅在试验条件下才适用。

4.He keeps a file of letters so he        whenever he needs it. (hand)

他将信件编号保存，一旦需要即可找出。

3.The best way to deal with someone who is drinking too much is        .(treat)

处理酗酒的人最好的办法是把他当病人对待。

2.          are registering for degree course each year, (number)

每年都有越来越多的学生注册选修学位课程。

1. George has certainly been down on his luck recently. First        ，then he

lost his job. (fall)

乔治近来真倒霉，先是他妻子病倒了，之后他又失业了。

  The principal of New Milford High School has nearly 12,300 Twitter followers. He and his teachers use Facebook to communicate with students and parents，and students use it to plan e-vents. In class, teachers routinely ask kids to power up their cellphones to respond to classroom quizzes. Rather than ban cellphones, Sheninger calls them "mobile learning devices".

  "The Internet as we know it is the 21st century," he says. "It is what these students have known their whole lives. They're connected, they're creating, they're discussing."

He and others say working online also pushes education beyond the limits of school, allowing kids to broaden discussion of their work. And it forces them to do "authentic" work that gets tested out in the real world, as outside viewers see it and respond to it.

  "Being literate in 2011 means being digitally literate. " says Chris Lehmann. "It is naive (天真的) to think that kids raised online will respond to school the same way as previous genera?tions. Kids are coming to us bored, disconnected, and it's a challenge for us to figure out how to use the tools inherent in the real-time Web.”

  Perhaps the biggest objection to widespread use of social sites is the likelihood that kids will meet irrelevant or even offensive material―a fear that many teachers say is overblown.

  "We as educators need to do a better job of advertising and sharing the meaningful work done with social media," says Matt Levinson. "If you keep it out,kids are creating their own cultures in this space with no guidance from adults―and that's not responsible.”

  "The other big misconception is that schools with open Web access are simply letting kids play freely as if there's no structure," says Lisa Highfill, a longtime devotee of YouTuhe. She used it recently to show her students videos of tornadoes. Highfill says she chooses videos in ad?vance.

  "I don't just search in front of the kids," says Highfill. She admits that even with careful planning，learning online carries risks. But the risks shouldn't be overstated. " When we go on a field trip,when we go anywhere," she says, "we warn students of the dangers of where we're going.”

(   ) 5. In the opinion of Sheninger, social networking        .

   A.is almost the whole life of many kids

   B.gets kids to learn something schools forbid

   C.allows kids to complain about their learning

   D.has kids get feedback on their online work

(   ) 6. According to Chris,teachers are challenged to know        .

   A.how to make full use of social sites in class

   B.how to avoid looking foolish in using social sites

   C.how to connect kids with social media effectively

   D.how to deal with a digital generation in class

(   ) 7. The example of Highfill's using YouTube proves        .

   A.online learning is full of unexpected things

   B.it is a risk to open the Web to students at school

   C.teachers provide guidance on the Web access

    D.kids play freely if having access to the Web

(   ) 8. What might be the most suitable title for the passage?

   A.Social networking helps online learning

   B.Social sites are a wonderful place for kids

   C.Social networking sites are blocked at schools

   D.Social media find place in class

 Jamie Carrion took her four-year-old daughter，Averie and her little son，Abel into her father's truck and began driving from her parents' home to her home several hours away. But,she hadn't realized how icy the roads were. Just a few miles into the drive,the truck rolled over several times and landed on the passenger side. Carrion became unconscious(昏迷的) ，leaving her children crying in the back seat.

  When Carrion woke up,her daughter Averie wasn't in the car. After a rescue team showed up，she directed them to search the snow bank maybe Averie had been thrown out of the car. She could be unconscious, or worse.

  In fact,the 32-pound child had crawled(爬) through the broken truck window and pushed her way through the snow bank，and then walked a quarter mile up the road to the nearest farm?house in search of help for her mother and crying brother. "I think my mom's dead,and my brother is still in the car,and we need you to help us," she told Jason Zenk,the 13-year-old boy who found her.

While the family warmed the shivering(发抖) child up with blankets, Zenk's father Patrick got into his truck to see what had happened. Just down the road,he came across a group of e-mergency vehicles, and a female driver crying. Police officers were searching for Averie in the snowy fields. "I think we have what you're looking for. " Zenk said.

A few minutes later, Averie and her mother were happily reunited. And Averie was re?cently rewarded with a trip to New York City to tell her story on national TV shows.

(   ) 1. The accident happened because        .

   A. the roads were too busy

   B.the roads were too icy

   C.the truck broke down

   D.it was too dark

(   ) 2. We can infer that Zenk        .

   A.found Averie in the snow bank

   B.saved Averie，s mother and brother

   C.asked his father to see what had happened

   D.went with his father to see what had happened 

(   ) 3. What can we learn about Averie?

   A.Averie earned a reward because of her bravery.

   B.Averie was thrown out of the car in the accident.

   C.New York City is Averie's favourite place.

   D.Averie is living with her grandparents now.

(   ) 4. Which of the following is true according to the text?

   A.Carrion was not good at driving trucks.

   B.Zenk called the police to save the family.

   C.Averie's brother stayed with his mother after the accident.

   D.Averie's brother also became unconscious in the accident.