题目内容
16.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 to send orders to machines.Recently,two researchers,Jose Milan and Michele Tavella from the Federal Polytechnic school in Lausanne,Switzerland,showed a small robotic wheelchair directed by a person's thoughts.
In the laboratory,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.
"Our brain has billions of nerve cells.These send signals through the spinal cord (脊髓)to the muscles to give us the ability to move.But spinal cord injuries or other cases can prevent these weak signals from reaching the muscles,"Tavella says."Our system allows disabled people to communicate with the outside world and also to control machines."
The researchers designed a special cap for the user.This cap picks up the signals from the scalp(头皮) and sends them to a computer.The computer interprets the signals and commands the robotic wheelchair.The wheelchair also has two cameras that identify objects in its path.They help the computer react to commands from the brain.
Prof.Milan,the team leader 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.
12.How did Tavella operate the wheelchair in the laboratory?D
A.By controlling his muscles.
B.By talking to the machine.
C.By moving his hand.
D.By using his mind.
13.Which of the following shows the path of the signals described in Paragraph 5?C
A.scalp→computer→cap→wheelchair
B.computer→cap→scalp→wheelchair
C.scalp→cap→computer→wheelchair
D.cap→computer→scalp→wheelchair
14.The team will test with real patients toB.
A.make profits from them
B.prove the technology useful to them
C.make them live longer
D.learn about their physical condition
15.Which of the following would be the best title for the text?C
A.Switzerland,the BCI Research Center
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.
分析 本文是一则新闻报道,科学家寻找到了一种方法,把人脑与电脑连接起来,进而发明了Brain-computer interface(BCI)技术的发明,文中介绍了它的原理和对残疾人带来的益处.
解答 12.D.细节理解题.根据第二段"Tavellaoperated the wheelchair just by thinking about moving his left or right band."可知Tavella是用他的头脑在实验室操作的轮椅.故选D.
13.C.细节理解题.根据第五段The researchersdesigned a special cap for the user.This head cover picks up the signals fromthe scalp(头皮) and sends them to a computer.Thecomputer interprets the signals and commands the motorized wheelchair.Thewheelchair also has two cameras that identify objects in its path.They helpthe computer react to commands from the brain可知信号的路径是头皮→帽→计算机→轮椅.故选C.
14.B.细节理解题.根据最后一段"to prove thatthis is a technology they can benefit from.",证明他们可以从中获得的好处.故选B.
15.C.主旨大意题.本文是新闻文体,因此要关注首段的中心,由首段的第二句话"Brain-computer interface(BCI) technology could help people withdisabilities send commands to machines."可知bci可能意味着残疾人更多的自由;故选C.
点评 考察学生的细节理解和推理判断能力,做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确的选择.在做推理判断题不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.
-I'm _____ a bad cold.I think I am dying.( )
A. | recovering from | B. | suffering from | C. | coming up with | D. | getting into |
-__________,Tommy.You can do it.( )
A. | No problem | B. | No hurry | C. | Come on | D. | That's OK |
Being responsible with your money is an important skill to learn-and the sooner you start the better.Whether you are tracking your spending or saving for something special,creating a budget can help you deal with your expenses and plan for the future.All you need are paper and a pencil-and some self-control.
First,take a look at our sample monthly budget.Then,use a separate sheet of paper to plan your own.In the first two columns (栏),list your sources (来源) of income and how much you expect to earn from them.In the third and fourth columns,list what you expect to spend your money on and the amount.
The left-hand total should be more than or equal to the right-hand total.If it is,you have an effective budget.Budgets are not complex,but sticking to them can be tough.When planning your budget,be realistic about your expenses.If you know that you drop 18 at a movie,don't write 12 in that space simply because you wish you were spending less.
If you are eyeing a big purchase,such as a 150 skateboard,spend less and save more until you have the total amount.No matter how attractive it may be,avoid spending your savings.One day,you will thank yourself!
Monthly Income | Amount | Monthly Expense | Amount |
Allowance | 20.00 | Snacks | 20.00 |
Money earned selling drinks | 25.00 | Music downloads | 12.00 |
Money earned babysitting | 12.50 | Movies | 18.00 |
Money earned delivering newspapers | 30.00 | Video rental | 10.00 |
Total | 87.50 | Total | 66.00 |
A.Children.B.Parents.C.Breadwinners.D.Bank managers.
57.The purpose of making a budget is to help peopleC.
A.learn to be realistic
B.increase their saving
C.manage their money well
D.test their power-control
58.What should people do when planning a budget?A
A.Fill in the expenses as they really are
B.Avoid spending money on expensive things.
C.Set aside a fixed amount of money as savings.
D.List income and expenses on two pieces of paper.
59.Which of the following budgets is effective?D
A.
Monthly Income | Amount | Monthly Expense | Amount |
Allowance | 20.00 | Money earned walking dogs | 20.00 |
Bus fares | 40.00 | Movies | 28.00 |
Total | 60.00 | Total | 48.00 |
Monthly Income | Amount | Monthly Expense | Amount |
Allowance | 20.00 | Movies | 30.00 |
Money earned washing cars | 10.00 | Bus fares | 10.00 |
Total | 30.00 | Total | 40.00 |
Monthly Income | Amount | Monthly Expense | Amount |
Allowance | 27.50 | Money earned brushing shoes | 22.00 |
Money earned washing dishes | 22.50 | Birthday gifts | 28.00 |
Total | 50.00 | Total | 50.00 |
Monthly Income | Amount | Monthly Expense | Amount |
Allowance | 26.00 | Video rental | 22.00 |
Money earned doing yard work | 24.00 | Birthday gifts | 28.00 |
Total | 50.00 | Total | 50.00 |
A.the importance of making a budget
B.how to make a budget
C.how to form good habits
D.how to spend money.