Q: Read the following article and answer the question. Article: Scientists have created a way to control a robot with signals from human brain.By generating the proper brainwaves--picked up by a cap with electrodes that sense the signals and reflect a person's instructions--scientists can instruct a humanoid robot to move to specific locations and pick up certain objects. The commands are limited to moving forward,picking up one of two objects and bringing it to one of two locations.The researchers have achieved 94 percent accuracy between the thought commands and the robot's movements. "This is really a proofofconcept demonstration," said Rajesh Rao,a researcher from the University of Washington who leads the project."It suggests that one day we might be able to use semiautonomous robots for such jobs as helping disabled people or performing routine tasks in a person's home." The person wearing the electrode cap watches the robot's movements on a computer screen through two cameras installed on and above the robot. When the robot's cameras see the objects that are to be picked up they pass on the information to the user's computer screen.Each object lights up randomly on the computer screen.When a person wants something picked up and it happens to light up,the brain registers surprise and sends this brain activity to the computer and then to the robot.The robot then proceeds to pick up the object. A similar algorithm is used to decide where the robot will go. "One of the important things about this demonstration is that we're using a 'noisy' brain signal to control the robot," Rao said."That means we can only obtain brain signals indirectly from sensors on the surface of the head,not where they are generated deep in the brain.As a result,the user can only generate highlevel commands such as indicating which object to pick up or which location to go to,and the robot needs to be autonomous enough to be able to execute such commands." In the future,the researchers hope to make the robots more adaptive to the environment by having them carry out more complex commands. Question: What is special about the robot introduced in the passage? Answer:

OPTIONS:
- It is controlled by human thoughts.
- It can be made humanoid.
- It can be used to help the disabled.
- It has high intelligence itself.

A: It is controlled by human thoughts.

Q: Read the following article and answer the question. Article: The bed should be reserved as a place for sleep, but people tend to read an iPad a lot in bed before they go to sleep. Charles Czeisler, a professor at Harvard Medical School, and his colleagues got a small group of people for an experiment. For five days in a row, the people read either a paper book or an iPad for four hours before sleep. Their sleep patterns were monitored all night. Before and after each trial period, the people took hourly blood tests to paint a day-long picture of just how much melatonin was in their blood at any given time. When subjects read on the iPad as compared to the paper books, they reported feeling less sleepy at night and less active the following morning. People also took longer to fall asleep on the iPad nights, and the blood tests showed that their melatonin secretion was delayed by an hour and a half. The researchers conclude in today's journal article that given the rise of e-readers and the increasingly widespread use of e-things among children and adolescents, more research into the long-term consequences of these devices on health and safety is urgently needed. Czeisler and colleagues go on, in the research paper, to note:"Reading an iPad in bed may increase cancer risk." However, software has been developed that can reduce some of the blue light from the screens of phones and computers according to time of day, and there are also glasses that are made to filter short wavelengths. While they seem like a logical solution for the nighttime tech users, it needs more research. Question: In Charles Czeislers experiment, all the subjects were asked to _ . Answer:

OPTIONS:
- sit in a row and receive the strict tests
- have their sleep patterns observed all night
- read a paper book and an iPad at the same time
- have their blood tested per hour during the trial

A: have their sleep patterns observed all night

Q: Read the following article and answer the question. Article: Our "Mommy and Me" time began two years ago. My next-door neighbor and fellow mother, Christie, and I were our in our front yards, watching seven children of age six and under ride their bikes up and down. "I wish I could take one of my children out alone," said Christie. Then we worked out a plan. When Christie takes one of her children out alone, I'll watch her other three. And when she watched two of mine, I will take someone out. The children were extremely quick to accept the idea of "Mommy and Me" time. Christie's daughter, McKenzie, went first. When she returned, the other children showered her with tons of questions. McKenzie was smiling broadly. Christie looked refreshed and happy. "She is like a different kid when there's no one else around," Christie shared with me quietly. With her mother all to herself, McKenzie didn't have to make any effort to gain attention. Just as Christie had noticed changes in McKenzie, I also discovered something different in each of my children during our alone times. For example, I'm always surprised when my daughter, who is seldom close to me, holds my hand frequently. My stuttering son, Tom, doesn't stutter once during our activities since he doesn't have to struggle for a chance to speak. And the other son, Sam, who is always a follower when around other children, shines a leader during our times together. The "Mommy and Me" time allows us to be simply alone and away with each child--talking, sharing and laughing, which has been the biggest gain. Every child deserves an only child at least once in a while. Question: The author seems to believe that _ . Answer:

OPTIONS:
- Having brothers and sisters is fun
- it's tiring to look after three children
- every kid needs parents' full attention
- parents should watch others' kids

A: every kid needs parents' full attention

Q: Read the following article and answer the question. Article: A sixth of undergraduates in Beijing this year have registered at driving school. The students, mostly from majors such as business management or international trade, will finish their driving courses within 20 days or so. Training costs have dropped to 2, 600 yuan for students, according to the Haidian Driving School in Beijing. The price is not really low, but students will accept it, seeing it as an investment in their future. Familiarity with the operation of computers and fluent English are the basic skills graduating students need to find a job. But a driver's permit has become another factor . "In the job market, owning a driver's permit sometimes strengthens a graduating student's competitiveness for a good position, "says Zhou Yang, an undergraduate at the China University of Political Science and Law. Cars will become a necessary part of many people's lives in the coming years, and it is difficult to get a permit of campus because of the pressures on working people's time. "Having a fulltime job after graduation offers limited time to learn to drive. We senior students have plenty of spare time, plenty of opportunity to learn. "Zhou says. Xu Jian, an official at the driving school, said undergraduates were very able and serious, and could grasp in an hour what ordinary people took four hours to learn. In this driving school, middle -aged people, young women and college students are the main customers. To get a driver's permit, a beginner is now required to have at least 86 hours'practice before the final road test. Question: Which of the following is likely to be Xu Jian's opinion of students learning to drive? Answer:

OPTIONS:
- He thought it was better to learn it at college than at work.
- He decided it was a waste of money and time to learn to drive.
- He agreed that they could learn to drive.
- He thought they would spend three times more time to learn to drive than usual.

A:
He agreed that they could learn to drive.