课时作业(八) [必修2 Unit 3 Computers] (限时：30分钟).完形填空I have been interested in self－improvement and applying it to myself in many ways. And of course all through that time I have learnt a lot and made it much __1____2__ high level. I feel a miracle has happened to me. In fact the other day I couldn't stop staring at myself in the __3__ making sure all these wonderful things were happening to me! Then I cried a small __4__， not because of what I looked like, but because I was so __5__e me __6__ ensure that my track in life has truly __7__. I moved back to my hometown after being away for a decade and was astonished that so many people __8__ my name in a nice way, greeted me and __9__ me back. And over the next 3 months they were excited for my growth. At the __10__ where I exhibit today, people come over and greet me, and I see the __11__ on their faces when they talk to me frankly and __12__. Thus I think they are __13__ my expression or style. I know I give them a good feeling at the fairs not just from keeping my expression open, understanding and kind, but with a __14__smile in all the right places. But now I do feel that what I have done for the people may bring them a bit of sympathy.
And most of all I believe in the mirror __15__. I have ever been doing the hard work, improving myself and now I feel it's coming back to me in absolute roads and I am considered to be a man of great culture.
1．A.easier
B．healthier
C．happier
D．better
2．A.wonderful
B．helpful
C．useful
D．harmful
3．A.window
B．mirrorproud
6．A.nearly
B．really
C．hardly
D．equally
7．A.appeared
B．improved
C．moved
D．changed
8．A.remembered
B．recognizedfairs
11．A.expression
B．impression
C．confusion
D．emotion
12．A.slowly
B．sincerely
C．loudly
D．annually
13．A.copying
B．shapingeffect
D．function阅读理解the demand for online games continues to grow. Online computer game centres exist in many cities and towns throughout Asia. Facing the pressures of school and life, people tend to the virtual world, expecting a diversion from these problems. Too often, however, they can lead to problems and unhealthy addictions.
This is most clearly seen in the example of Korea. The country has the world's highest percentage of high－speed Internet services. It also has a high number of online game players and related problems. It was once reported that a young man collapsed(突然晕倒) and died while playing online games. He had been playing almost non－stop for 86 hours at an Internet cafe. Another young man killed his sister after becoming confused between the online world and real life. A 12－year－old boy stole $16，000 from his father and ran away from home. He did this to continue his obsession(着迷) with online games. Such problems, however, don't just happen in Korea. They are spreading to other parts of Asia as well.
What kinds of people develop online game addiction? What does the problem look like? Dr SueHuei Chen, a clinical psychologist, researches Internet addiction. She discovered some signs of at－risk individuals such as lack of friendship and good social skills. Those problem individuals feel it so compulsive to play online games that they could sacrifice things such as school and family. They feel the need to spend more and more time online. And they become upset if anyone tries to limit their online game playing.
How many problem game players are there? In Chinese mainland, the potential number of problem online gamers is alarming. Just in 2004, China has had 13.8 million online game players according to China Daily. Furthermore, it stated that 80 per cent of these were under 25 and had signs of addiction. Such numbers point towards a growing problem among Chinese youths.
Make sure to keep control over your online game playing. If you don't control it, it can get control of you.
16．The underlined word “diversion” in the first paragraph is closest in meaning to “________”．
A．solution
B．comfort
C．escape
D．support
17．The examples in the second paragraph tell us that ________．
A．the side effects are caused by high－speed Internet
Chen, what can we do to prevent game addiction?
A．Limit the speed of the Internet services.
B．Sacrifice things such as school and family.
C．Spend more and more time online.
D．Care much for the young and improve their ability to get along with others.
19．We can conclude from the passage that ________．
A．the demand for online services continues to grow
B．China is fighting a battle against online games
C．the problems caused by online games don't just exist in Korea
D．in the year 2004 there were a total of 13.8 million Chinese visiting the Internet
20．What's the best title for the passage?
A．Internet problems
B．Addiction to online games
C．Problem people in the world
D．Online games can control people
B
Since the 1970s, scientists have been searching for ways to link the brain with computers. Brain－computer interface(BCI) technology could help people with disabilities send commands to machines.two researchers, Jose Millan and Michele Tavella from the Federal Polytechnic School in Lausanne, Switzerland, demonstrated(展示) a small robotic wheelchair directed by a person's thoughts.Tavella operated the wheelchair just by thinking about moving his left or right hand. He could even talk as he watched the vehicle and guided it with his thoughts.
揙ur brain has billions of nerve cells. These send siegnals through the spinal cord (脊髓)to the muscles to give us the ，” Tavella says.
“Our system allows disabled people to communicate with external world and also to control devices.”(头皮) 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.the team leader, says scientists keep improving the computer software that interprets brain signals and turns them into simple commands. “The practical possibilities that BCI technology offers to disabled people can be grouped in two categories：communication and controlling devices. One example is this wheelchair.”
He says his team has 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 technology over long periods of time.
21．BCI is a technology that can ________．help to update computer systems
B．link the human brain with computers
C．help the disabled to recover
D．control a person's thoughts
22．How did Tavella operate the wheelchair in the laboratory?
A．By controlling his muscles.
B．By talking to the machine.
C．By moving his hand.
D．By using his mind.
23．Which of the following shows the path of the signals described in Paragraph 5?
A．scalp→computer→cap→wheelchair
B．computer→cap→scalp→wheelchair
C．scalp→cap→computer→wheelchair
D．cap→computer→scalp→wheelchair
24．The team will test with real patients to ________．B．prove the technology useful to them
C．make them live longer
D．learn about their physical conditions
25．Which of the following would be the best title for the text?
A．Switzerland, the BCI research centre
B．New findings about how the human brain works
C．BCI could mean more freedom for the disabled
D．Robotic vehicles could help to cure brain injuries
课时作业(八)本文主要讲述作者20年来一直注重自我形象的提升，并通过隐性例子说明镜子效应的积极意义。 easier更容易的；healthier更健happier更高兴的；better更好的。根据上句的“…I have been interested in self－improvement…”与“…可知，一直以来，“我”学到了很多东西并且做得更好。故选D。 wonderful奇妙的；helpful有帮助的；useful有用的；harmful有害的。从下句的a miracle与all these wonderful things可知，在最后的三个月，“我”似乎已经达到了美妙的高水平。故选A。B window窗子；mirror镜子；area地区；road路。从staring与下句的looked like提供的语境，再结合最后一段的“…I believe in the mirror…”可知选B。 sorrow悲伤；fear害怕；tear眼泪；voice声音。tear是动词cried的同源宾语。“我”哭了不是因为我的长相。故选C。 hopeful有希望的；anxious焦虑的；grateful感谢的；proud自豪的。“我”哭不是因为“我”的外表，而是因为“我”是如此地感激“我”自己。故选C。 nearly几乎，将近；really实际上；hardly几乎不；equally同样地。该段第一句为主题句。从下文细节可知：作者真的确信生活的道路改变了。故选B。 appear出现；improve提高；move移动；change改变。这里强调生活道路真的改变了。故选D。 remember记住；recognize认出；call打电话；remind提醒。在离开家十年后“我”回到了故乡，并惊奇地发现有许多人竟然还记得“我”的名字。故选A。 take拿；welcome欢迎；turn变成；get得到。从“…in a nice way, greeted me…”可知选B。 market市场；trade 交易；hall大厅；fair展览会，集市。从exhibit和下文的“I know I give them a good feeling at the fairs…”可知选D。 expression表情；impression印象；confusion混乱；emotion情感。当他们坦率又真诚地跟A。 slowly慢慢地；sincerely真诚地；loudly大声地；annually每年。当他们坦率又真诚地跟“我”说话时，“我”看见他们脸上的表情。故选B。 copy模仿，复制；shape塑造；show展示；learn学习。因此“我”认为他们是在模仿“我”的表情和风格。故选A。 brave 勇敢的；quiet安静sweet悦耳的；simple简单的。根据a good feeling可知是甜甜的微笑。故选C。 value评价；reflection反射；effect影响；function功能，作用。最重要的是相信镜子效应。故选C。本文讲述了沉迷网络游戏所引起的问题。 词义猜测题。diversion意为“转移”，在文中是指人们通过虚拟世界来逃避现实。故选C。 推理判断题。第二段通过三个年轻人的例子说明了网络游戏对年轻人的负面影响。故选C。D 推理判断题。根据SueHuei Chen的研究可知，沉迷网络游戏的人往往缺少友谊和良好的社交能力，故可推断增强个人的交往能力可以防止玩游戏上瘾。故选D。 细节理解题。根据第二段最后一句可知选C。 主旨大意题。全文讲述的是玩网游上瘾的问题，故B项最符合文意。这是一篇科普类文章。文章中，作者向我们报道了关于人脑信息和电脑信息研究的最新突破。该技术目前正准备在病人身上应用。 细节理解题。由第一段首句可知B项正确。 细节理解题。由第三段的“In the laboratory, Tavella operated the wheelchair just by thinking about moving his left or right hand.”可知，他是通过他的思维来操纵轮椅的。故选D。 事实排序题。由该段可知，信号从the scalp(头皮)发出后被a special cap接收，接着传到了a computer，最后到了wheelchair，由此可知C项正确。 细节理解题。最后一段第二句“One is testing with real patients, so as to prove that this is a technology they can benefit from.”中的they指的是patients，证明他们能从中获益，也就是说这一科技对于他们是有用的(useful)。因此可知答案。 主旨大意题。 文章向我们介绍了瑞士BCI研究中心的一个新技术的工作原理，以及其给残疾人带来的实惠。