8. Once built,it needs to be used by the people. And         ，it needs to provide benefits to its owners.(once)

一經(jīng)制造，就需要為人所用；一經(jīng)使用，就需要為物主帶來好處。

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科目：高中英語 來源： 題型：

6. You must work hard,        in the class.(otherwise)

你必須努力學習，否則你在班上的名次就保不住了。

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10.        we have to undertake even though it involves risks.(that)

這是一件很重要的我們必須要做的事，盡管它是有風險的。

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 Since the 1970s,scientists have been searching for ways to link the brain with computers. Braincomputer interface (BCD technology could help people with disabilities send commands to machines.

  Recently,two researchers,Jose Millan and Michele Tavella from the Federal Polytechnic School in Lausanne,Switzerland,demonstrated (展示) a small robotic wheelchair by a person's thoughts.

  "Our brain has billions of nerve cells. They send signals through the spinal cord (脊髓) to the muscles to give us the ability to move. But spinal cord injuries or other conditions can pre?vent these weak electrical signals from reaching the muscles," Tavella says. "Our system allows disabled people to communicate with external world and also to control devices."

  The researchers designed a special cap for the user. This head cover picks up the signals from the scalp (頭皮) and sends them to a computer. The computer interprets the signals and commands the motorized wheelchair. The wheelchair also has two cameras that identify objects in its path. They help the computer react to commands from the brain.

  Prof. Millan,the team leader,says scientists keep improving the computer software that re?ceives brain signals and turns them into simple commands. "The practical possibilities that BCI technology offers to disabled people can be grouped into two categories,communication and controlling devices. One example is this wheelchair."

  He says his team set two goals. One is testing with real patients,so as to prove that this is a technology they can benefit from. And the other is to guarantee that they can use the technolo?gy over long periods of time.

(   ) 5. BCI is a technology that can         .

   A. help to update computer systems   B. link the human brain with computer

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   A. By controlling his muscles. B. By talking to the machine.

   C. By moving his hand. D. By using his mind.

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   A. scalp—computer—cap—wheelchair   B. computer—cap—scalp—wheelchair

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   A. make profits from them   B. prove the technology useful to them

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3. How could she        when she was lying helpless in bed? (set)

她無助地躺在床上，怎能動身去找他呢？

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  "Colonizing the Moon or Mars seems so far away,but it is important that we do this re?search now," Paragon president Jane Poynter said.

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  Few Asians are Christian but people across the vast continent are embracing the holiday as a great excuse for shopping,partying and even romance.

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科目：高中英語 來源： 題型：

3. I find it        who steals food for a hungry child。(condemn)

我發(fā)現(xiàn)很難去譴責一位為饑餓的孩子而偷食的母親。

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