People in several American states may be surprised to see cars on city streets without a driver. Experimental driverless vehicles now are legal in Florida, Nevada and California. They are pointing the way to a future that is not far down the road. The high-tech company Google has a number of self-driving cars, which had covered 480,000 kilometers by August. Volvo is among the companies doing road tests and says it plans to sell driverless cars by 2020.
In September, California Governor Jerry Brown signed an act to allow autonomous vehicles on the roads of his state. " Today we're looking at science fiction becoming tomorrow's reality-the driverless car. " The technology for these cars includes cameras, radar and motion sensors. The systems have been improved through competitions sponsored by the U. S. government agency DARPA. Engineer Richard Mason of the Rand Corporation helped design driverless vehicles for DARPA challenge races.
Cars have become much more fuel-efficient, and new electronic features are' making Hondas safer, said Angie Nucci of Honda America. " A camera on the passenger-side mirror actually engaged on your guiding screen so you can safely change lanes. " Other safety features include warning systems on the front and the sides of the cars. These systems help drivers , but don't replace them. Curator Leslie Kendall of the Petersen Automotive Museum said autonomous cars will make the high ways safer．
"By taking out drivers, you also remove most risks of an accident," Kendall said. He said consumers, however, may be unwilling to lose control. "It may take them time to come to realize that the technology is indeed reliable, but it will have to prove itself first. "
Mason said the technology already works and the biggest challenge now is getting down the cost for driverless vehicles from hundreds of thousands of dollars to something more affordable. He said this will happen as the technology is improved.What can we learn from Paragraph l?
A. Driverless vehicles are now legal in the whole USA.
B. Volvo will be the first to sell driverless cars.
C. Driverless cars are pointing us' a faraway future.
D. Google's self-driving cars have covered a long distance.We learn that Governor of California Jerry Brown_________.
| A．helped design self-driving cars. |
| B．supports self-driving cars on roads. |
| C．considers self-driving cars science fiction. |
| D．improved the self-driving car systems. |
What is the role of the systems mentioned in Paragraph 3?
| A．They can help people drive more safely. |
| B．They can take the place of drivers now. |
| C．They can make cars run without fuel. |
| D．They can help cars run much faster. |
According to Richard Mason, what is the biggest challenge for driverless cars?
| A．They are not allowed to run on the road. |
| B．Their technical problems remain to be solved. |
| C．They are now too expensive for consumers. |
| D．They are more dangerous for people on the street. |
What's the best title of the passage?
| A．The benefits of the self-driving cars. |
| B．The biggest challenge of the self-driving cars. |
| C．Safer or more dangerous-self-driving cars. |
| D．Self-driving cars-science fiction future is near. |
“If music is the medicine of the soul(灵魂), let it play on,” said a famous person. I think he said so because probably he got some help from music. Music has some strange abilities. Medical scientists have found that a person that feels stressed can actually listen to some kind of music and become well.
The researchers said that since stress comes as a result of life events such as starting a new family, starting a new business, and starting a new job, one can actually listen to good music and feel good because good music touches the human mind in a positive way. Music helps you to forget the life events that make you worried and remember the important events that once happened in your life.
Depression(抑郁) is a disease cause by stress, smoking, social problems and so on. Depression is also caused by problems such as failure in business. Depression may bring us weakness, headache, and loss of concentration. Good music makes one remember happy moments or good days. If you play music about love, it makes you feel like falling in love again though you may have had several upset experiences. And such good feeling make you healthy.
Anxiety(焦虑) is another health problem that can be controlled by music. Anxiety is a side effect of some major health problems such as cancer of the liver and cancer of the breast. Good music makes you feel relaxed and removes the pains from these diseases and you feel all right.
Good music can send you to sleep. And you need to know that sleep puts your body in a healthy condition. Sleep takes away the effects of stress, depression and anxiety from a person.According to the famous person in Paragraph 1, music can___________.
| A．treat many kinds of diseases |
| B．help you keep healthy in your mind |
| C．take the place of medicine in treating illness |
| D．make you remember things happened in the past |
Good music helps people remove stress mainly by _________.
| A．letting people have a good sleep |
| B．making people think positively |
| C．showing something new to people |
| D．making people focus only on important things |
Which of the following is NOT a reason for depression mentioned in the passage?
| A．Stress | B．Smoking | C．Failure in business | D．Loss of concentration |
According to the passage, one who has cancer will most probably experience __________.
| A．stress | B．depression | C．anxiety | D．upset |
Which of the following might be the best title for the passage?
| A．The health benefits of listening to music |
| B．Stress can bring us many kinds of diseases |
| C．Some diseases have something to do with music |
| D．Tips for us to live a healthy and comfortable life |
Guide to Stockholm University Library
Our library offers different types of studying places and provides a good studying environment.
Zones
The library is divided into different zones. The upper floor is a quiet zone with over a thousand places for silent reading, and places where you can sit and work with your own computer. The reading places consist mostly of tables and chairs. The ground floor is the zone where you can talk. Here you can find sofas and armchairs for group work.
Computers
You can use your own computer to connect to the wi-fi specially prepared for notebook computers; your can also use library computers, which contain the most commonly used applications, such as Microsoft Office. They are situated in the area known as the Experimental Field on the ground floor.
Group-study places
If you want to discuss freely without disturbing others, you can book a study room or sit at a table on the ground floor. Some study rooms are for 2-3 people and others can hold up to 6-8 people. All rooms are marked on the library maps.
There are 40 group-study rooms that must be booked via the website. To book, you need an active University account and a valid University card. You can use a room three hours per day, nine hours at most per week.
Storage of Study Material
The library has lockers for students to store course literature. When you have obtained at least 40 credits(学分), you may rent a locker and pay 400 SEK for a year’s rental period.
Rules to be Followed
Mobile phone conversations are not permitted anywhere in the library. Keep your phone on silent as if you were in a lecture and exit the library if you need to receive calls.
Please note that food and fruit are forbidden in the library, but you are allowed to have drinks and sweets with you.The library’s upper floor is mainly for students to __________.
| A．read in a quiet place | B．have group discussions |
| C．take comfortable seats | D．get their computers fixed |
Library computers on the ground floor __________.
| A．help students with their field experiments |
| B．contain software essential for schoolwork |
| C．are for those who want to access the wi-fi |
| D．are mostly used for filling out application forms |
What condition should be met to book a group-study room?
| A．A group must consist of 8 people |
| B．Three-hour use per day is the minimum |
| C．One should first register at the university |
| D．Applicants must mark the room on the map |
A student can rent a locker in the library if he __________.
| A．can afford the rental fee | B．attends certain coursed |
| C．has nowhere to put his books | D．has earned the required credits |
What should NOT be brought into the library?
| A．Mobile phones | B．Orange juice | C．Candy | D．Sandwiches |
Do you know Australia? Australia is the largest island in the world. It is a little smaller than China. It is in the south of the earth. Australia is big, but its population is not large. The population of Australia is nearly as large as that of Shanghai.
The government has made enough laws to fight pollution. The cities in Australia have got little air or water pollution. The sky is blue and the water is clean. You can clearly see fish swimming in the rivers. Plants grow very well.
Last month we visited Perth, the biggest city in Western Australia, and went to a wild flowers’ exhibition. There we saw a large number of wild flowers we had never seen before. We had a wonderful time. Perth is famous for its beautiful wild flowers. In spring every year Perth has the wild flowers’ exhibition. After visiting Perth, we spent the day in the countryside. We sat down and had a rest near a path at the foot of a hill. It was quiet and we enjoyed ourselves. Suddenly we heard bells ringing at the top of the hill. What we saw made us pick up all our things and run back to the car as quickly as we could. There were about three hundred sheep coming towards us down the path.
Australia is famous for its sheep and kangaroos(袋鼠). After a short drive from any town, you will find yourself in the middle of white sheep. Sheep, sheep, everywhere are sheep. Australia is _______.
| A．the largest country in the world | B．as large as Shanghai |
| C．not as large as China | D．the largest island in the north of the earth |
The government had made _______.
| A．too enough laws to fight pollution |
| B．so many laws that it can fight pollution |
| C．enough laws that it can hardly fight pollution |
| D．enough laws because the pollution is very serious |
Which of the following is NOT true？
| A．Perth is famous for its beautiful wild flowers. |
| B．Perth is bigger than any other city in Western Australia. |
| C．Perth lies in the west of Australia. |
| D．No other city is larger than Perth in Australia. |
In Perth you may visit a wild flowers’ show in _______season.
| A．a cool | B．a warm | C．the coldest | D．the hottest |
Which of the following is true？
| A．Australia is famous for its sheep, kangaroos and wild flowers. |
| B．We ran back to the car because we were in the middle of white sheep. |
| C．Three hundred sheep came towards us because they saw us. |
| D．If you go to the countryside in Australia, you will see a large number of white sheep. |
Are you carrying too much on your back at school? I’m sure lots of children of your age will say “Yes”. Not only the students in China have this problem, but children in the United States also have heavy school bags.
Doctors are starting to worry that younger and younger students are having back and neck problems as a result of school bags being too heavy for them.
“It’s hard for me to go upstairs with my bag because it’s so heavy,” said Rick Hammond, an 11-year-old student it the US.
Rick is among students who have common school bags with two straps(带子)to carry them, but many other students choose rolling(有滚轮的)bags.
But even with rolling bags, getting up stairs and buses is still a problem for children. Many of them have hurt their backs and necks because of the heavy school bags.
But how much is too much? Doctors say students should carry no more than 10% to 15% of their own body weight(重量).
Scott Batch, a back doctor, said children under Grade 4 should stay with 10%. But it is also important that older children don’t stay with over 15%, because their bodies are still growing.“
Children are losing their balance(平衡)and falling down with their school bags,” he said.
Parents and teachers are starting to tell children to only take home library books they will be reading that night. Some teachers are using pieces of paper or thin workbooks for students to take home.
One of the best answers is, as some children said, to have no homework at all!From the passage we can know that .
| A．only children in China carry too heavy school bags |
| B．children in other countries don’t carry too heavy bags |
| C．both children in China and the US carry too heavy school bags |
| D．only children in the US carry too heavy school bags |
Children feel it hard for them to go upstairs because .
| A．they are too young |
| B．their school bags are too heavy |
| C．they don’t know how to go upstairs |
| D．their parents don’t always go upstairs with them together |
If a child carries a heavy school bag, .
| A．his back and neck will be hurt | B．his head and arms will be hurt |
| C．his hands will be hurt | D．his feet will be hurt |
According to the doctor, Scott Batch, if a child in Grade 5 weighs(重)about 30 kilos, the school bag he carries should not be over .
| A．5 kilos | B．3 kilos | C．5.5 kilos | D．4.5 kilos |
Some students think the best answer to this problem is that .
| A．they should have a little homework to do after they get home |
| B．their teachers had better not ask them to do any homework |
| C．they should only take home library books they will read that night |
| D．they should use thin workbooks instead of think ones |
John Smith，an office worker，lives in Washington．He inherited (继承) a million dollars when he was 23，but he wasn’t happy at all．When his college friends were looking for their jobs，he didn’t have to．Jack decided to living a simple life like everyone else．He gave $l0,000 of his money to a charity (慈善机构) to help poor children live a better life．Today he is 36．He still wears cheap shoes and clothes and drives a small car only，but he is very happy．
Up to now John has helped some children from poor countries all over the world，by sending them each $200 a month．The money was used for the children’s study, food, medicine and clothing．John receives a report each year on the children’s progress．They can write to each other, but usually the children do not speak English．
When John first heard about these children，he wanted to help them．“It was nothing special,” he said．“Until I went to these countries and met the children I was helping，I didn’t know anything about their life．” Once John went to meet a little girl in Africa．He said that the meeting was very exciting．“When I met her．I felt very ,very happy．"he said．“And I saw that the money was used for a good cause．It brought me happiness．I want to do everything I can to go on helping those children.”John didn’t need to look for a job ___________.
| A．before he went to college | B．after he went to Africa |
| C．because he got a lot of money | D．before he received a report |
John has sent them each $200 a month to help some poor children _______．
| A．near Washington | B．in European countries |
| C．only in Africa | D．throughout the world |
John learned about the children’s progress by ________.
| A．visiting them each year | B．getting a report every year |
| C．staying with them | D．talking to them in English |
The underlined words “for a good cause ”means“________” in Chinese．
| A．施舍 | B．行善 | C．优惠 | D．赏赐 |
What’s the main idea of the story?
| A．Help others，and you will feel happy． |
| B．It’s necessary to write letters to poor children． |
| C．Live a simple life，and you can give others help． |
| D．It’s the most important to help the children in Africa |