优优班--学霸训练营 > 知识点挑题
全部资源
          排序:
          最新 浏览

          共50条信息

            • 1．
              This month，Germany's transport minister，Alexander Dobrindt，proposed the first set of rules for autonomous vehicles（自主驾驶车辆）．They would define the driver's role in such cars and govern how such cars perform in crashes where lives might be lost．
              The proposal attempts to deal with what some call the"death valley"of autonomous vehicles：the grey area between semi-autonomous and fully driverless cars that could delay the driverless future．
              Dobrindt wants three things：that a car always chooses property（财产） damage over personal injury； that it never distinguishes between humans based on age or race； and that if a human removes his or her hands from the driving wheel-to check email，say-the car's maker is responsible if there is a crash．
              "The change to the road traffic law will permit fully automatic driving，"says Dobrindt．It will put fully driverless cars on an equal legal footing to human drivers，he says．
              Who is responsible for the operation of such vehicles is not clear among car makers，consumers and lawyers．"The liability（法律责任） issue is the biggest one of them all，"says Natasha Merat at the University of Leeds，UK．
              An assumption behind UK insurance for driverless cars，introduces earlier this year，insists that a human"be watchful and monitoring the road"at every moment．
              But that is not what many people have in mind when thinking of driverless cars．"When you say‘driverless cars'，people expect driverless cars．"Merat says．"You know-no driver．"
              Because of the confusion，Merat thinks some car makers will wait until vehicles can be fully automated without operation．
              Driverless cars may end up being a form of public transport rather than vehicles you own，says Ryan Calo at Stanford University，California．That is happening in the UK and Singapore，where government-provided driverless vehicles are being launched．
              That would go down poorly in the US，however．"The idea that the government would take over driverless cars and treat them as a public good would get absolutely nowhere here，"says Calo．

              (1) What does the phrase"death valley"in Paragraph 2 refer to？ ______
              A. A place where cars often break down．
              B. A case where passing a law is impossible．
              C. An area where no driving is permitted．
              D. A situation where drivers'role is not clear．
              (2) The proposal put forward by Dobrindt aims to ______ ．
              A. stop people from breaking traffic rules
              B. help promote fully automatic driving
              C. protect drivers of all ages and races
              D. prevent serious property damage
              (3) What do consumers think of the operation of driverless cars？ ______
              A. It should get the attention of insurance companies．
              B. It should be the main concern of law makers．
              C. It should not cause deadly traffic accidents．
              D. It should involve no human responsibility．
              (4) Driverless vehicles in public transport see no bright future in ______ ．
              A. Singapore B. the UK C. the US D. Germany
              (5) What could be the best title for passage？ ______
              A. Autonomous Driving：Whose Liability？
              B. Fully Automatic Cars：A New Breakthrough
              C. Autonomous Vehicles：Driver Removed!
              D. Driverless Cars：Root of Road Accidents．
              难度：较易
              解析 收藏 试题篮
            • 2．
              Getting less sleep has become a bad habit for most American kids．According to a new survey（调查） by the National Sleep Foundation，51% of kids aged 10 to 18 go to bed at 10 pm or later on school nights，even though they have to get up early．Last year the Foundation reported that nearly 60% of 7-to 12-year-olds said they felt tired during the day，and 15% said they had fallen asleep at school．
              How much sleep you need depends a lot on your age．Babies need a lot of rest：most of them sleep about 18 hours a day!Adults need about eight hours．For most school-age children，ten hours is ideal（理想的）．But the new National Sleep Foundation survey found that 35% of 10-to 12-year-olds get only seven or eight hours．And guess what almost half of the surveyed kids said they do before bedtime？Watch TV．
              "More children are going to bed with TVs on，and there are more opportunities（机会） to stay awake，with more homework，the Internet and the phone，"says Dr．Mary Carskadon，a sleep researcher at Brown University Medical School．She says these activities at bedtime can get kids all excited and make it hard for them to calm down and sleep．Other experts say part of the problem is chemical．Changing levels of body chemicals called hormones not only make teenagers'bodies develop adult characteristics，but also make it hard for teenagers to fall asleep before 11 pm．
              Because sleepiness is such a problem for teenagers，some school districts have decided to start high school classes later than they used to．Three years ago，schools in Edina，Minnesota，changed the start time from 7：25 am to 8：30 am．Students，parents and teachers are pleased with the results．

              (1) What is the new National Sleep Foundation survey on？ ______
              A. American kids'sleeping habits．
              B. Teenagers'sleep-related diseases．
              C. Activities to prevent sleeplessness．
              D. Learning problems and lack of sleep．
              (2) How many hours of sleep do 11-year-olds need every day？ ______
              A. 7 hours． B. 8 hours． C. 10 hours． D. 18 hours．
              (3) Why do teenagers go to sleep late according to Carskadon？ ______
              A. They are affected by certain body chemicals．
              B. They tend to do things that excite them．
              C. They follow their parents'examples．
              D. They don't need to go to school early．
              难度：较易
              解析 收藏 试题篮
            • 3．
              Inspiring young minds! TOKNOW Magazine is a big hit in the world of children's publishing，bringing a unique combination of challenging ideas and good fun to young fans every month．
              What is so special about TOKNOW Magazine？
              Well，it has no ads or promotions inside--instead it is jam-packed with serious ideas．TOKNOW makes complex ideas attractive and accessible to children，who can become involved in advanced concepts and even philosophy（哲学）--and they will soon discover that TOKNOW feels more like a club than just a magazine．
              What's inside？
              Every month the magazine introduces a fresh new topic with articles，experiments and creative things to make--the magazine also explores philosophy and wellbeing to make sure young readers have a balanced take on life．
              Sounds too good to be true？
              Take a look online-evidence shows that thousands of teachers and parents know a good thing when they see it and recommend TOKNOW to their friends．
              Happy Birthday All Year!
              What could be more fun than a gift that keeps coming through the letterbox every month？The first magazine with your gift message will arrive in time for the special day．
              SUBSCRIBE NOW
              □Annual Subscription
              Europe£55 Rest of World£65
              □Annual Subscription with Gift Pack
              Includes a Mammoth Map，a Passport Puzzle Booklet，and Subscription
              Europe£60 Rest of World£70
              Refund Policy-the subscription can be cancelled within 28 days and you can get your money back．

              (1) Why is TOKNOW a special magazine？ ______
              A. It entertains young parents．
              B. It provides serious advertisements．
              C. It publishes popular science fictions．
              D. It combines fun with complex concepts．
              (2) What does TOKNOW offer its readers？ ______
              A. Online courses．
              B. Articles on new topics．
              C. Lectures on a balanced life．
              D. Reports on scientific discoveries．
              (3) How much should you pay if you make a 12-mouth subscription to TOKNOW with gift pack from China？ ______
              A. £55． B. £60． C. £65． D. £70．
              (4) Subscribers of TOKNOW would get ______ ．
              A. free birthday presents
              B. full refund within 28 days
              C. membership of the TOKNOW club
              D. chances to meet the experts in person．
              难度：较易
              解析 收藏 试题篮
            • 4．

              San Francisco Fire Engine Tours

              San Francisco Winery Tour

                  Running: February 1st through April 30th

                  This delicious tour goes through the city on its way to Treasure Island where we will stop at the famous Winery SF. Here you can enjoy 4 pours of some of the best wine San Francisco has to offer. ( Included in ticket price)

                  Departing from the Cannery: Tour times upon request

                  Duration(时长): 2 hours

                  Price : $ 90

              Back to the Fifties Tour

                  Running: August 16th through August 31st

                  This tour transports you back in time to one of San Francisco's most fantastic periods, the 1950s! Enjoy fun history. as we take you through San Francisco for a free taste of ice cream.

                  Departing from the Cannery: 5:00 pm and 7:30 pm

                  Duration: 2 hours

                  Price: $ 90

              Spooky Halloween Tour

                  Running: October 10th through October 31 st

                  Join us for a ride through the historical Presidio district. Authentic fire gear (服装) is provided for your warmth as our entertainers take you to some of the most thrilling parts of San Francisco.

                  Departing from the Cannery: 6:30 pm and 8:30 pm

                  Duration: 1 hour and 30 minutes

                  Price: Available upon request

              Holiday Lights Tour

                  Running: December 6th through December 23rd

                  This attractive tour takes you to some of San Francisco's most cheerful holiday scenes. Authentic fire gear is provided for your warmth as you get into the holiday spirit.

                  Departing from the Cannery: 7:00 pm and 9:00 pm

                  Duration: 1 hour and 30 minutes

                  Advance reservations required.

              (1) Which of the tours is available in March?

              A. San Francisco Winery Tour.

              B. Back to the Fifties Tour.

              C. Spooky Halloween Tour.

              D. Holiday Lights Tour.

              (2) What can tourists do on Back to the Fifties Tour?

              A. Go to Treasure Island.

              B. Enjoy the holiday scenes.

              C. Have free ice cream.

              D. Visit the Presidio district.

              (3) What are tourists required to do to go on Holiday Lights Tour?

              A. Take some drinks.

              B. Set off early in the morning.

              C. Wear warm clothes.

              D. Make reservations in advance.

              难度：较易
              解析 收藏 试题篮
            0/40

            进入组卷