题目内容
The average kid has a busy day. There’s school, taking care of your pets, running around with friends, going to sports for practice or other activities , and doing your homework. It’s tiring just writing them all down. By the end of the day, your body needs a break. Sleep allows your body to rest for the next day.
Everything that’s alive needs sleep to survive. Even your dog or cat curls up for naps. Animals sleep for the same reason as you do to give the body a tiny vacation.
Not only is sleep necessary for your body, it’s important for your brain, too. Though no one is exactly sure what work the brain does when you’re asleep, some scientists think that the brain sorts through and stores information, replaces chemicals, and solves problems while you snooze.
Most kids between 5 and12 get about 9.5 hours a night, but experts agree that most need 10 or 11 hours each night. Sleep is an individual thing and some kids need more than others.
When your body doesn’t have enough hours to rest, you may feel tired or cranky; or you may be unable to think clearly. You might have a hard time following directions, or you might have an argument with a friend over something really stupid . A school assignment that’s normally easy may feel impossible, or your may feel clumsy playing your favorite sport or instrument.
One more reason to get enough sleep: If you don’t you may not grow as well. That’s right, researchers believe too little sleep affect growth and you immune system-which keeps you from getting sick.
59. The underlined sentence means_____.
A. the author is too tired to write any more
B. the author doesn’t want the kids to do anything at school
C. the author is angry with what the kids do at school
D. the author thinks the kids are busy all day at school
60. The author’s purpose of writing this passage is to tell us_______.
A. why everyone needs to have enough sleep
B. animals need to sleep every like us
C. most kids need to sleep at least nine hours a day
D. kids are busy doing a lot of things every day
61. If you don’t have enough sleep you may__________.
A. finish your work ahead of time B. not get on well with your work
C. work out a problem easily D. not find your way back home
62. Which of the following is NOT true according to the passage?
A. You need a sleep to let your body rest every day.
B. Feeling tired means that you need to have a rest.
C. Kids who need more sleep than others must be ill.
D. If you want to grow normally you should have enough sleep.
How good are U.S. drivers?
The CBS TV “National Drivers Test” showed that many U.S. drivers have a lot to learn. Here’s why:
CBS picked 1,799 samples(被实验者) to take the test in TV studios in New York, Philadelphia, Chicago, and Los Angeles. More than two out of five of the drivers failed the test. And the average score was the lowest passing mark-51 points out of a possible 80.
Chicago drivers did best with an average of 53 points. Los Angeles drivers came next with 52 points. New York and Philadephia drivers tied(得同样的分数) with 50 points-a failing score. Drivers with 50 points or less were rated(被评价为) “poorly informed” by the judges.
Here are some of the test results:
(1) Are men better informed drivers than women?-Yes. Men averaged 52 points. Women got average of 49.
(2) Are older drivers better informed than younger drivers?-No. Drivers under 26 averaged 52 points. Drivers from 27 to 45 averaged 51. Driver over 45 failed with 48 points on average.
(3) Does education make a difference?-Yes. College graduates averaged 52 points. High school graduates averaged 50. Those without high school diplomas(文凭) got 48. And people who had taken driver education courses scored an average of 53 points-three more than those who hadn’t.
(4) Does driving experience make a difference?-Yes. Drivers with three or more years’ experience averaged 51 points. Drivers with less experience averaged 49.
Here are some surprising facts brought out by the test:
(1)More than one out of three drivers did not know that a blinking(闪烁) red light means a full stop. (2)Three out of ten drivers did not know that an octagonal (eight-sided) sign means stop.
(3)More than two of three drivers did not know what to do when being “tailgated”(危险地,紧接另一辆驶) The answer: slow down, drive to the right, and let the driver behind pass.
The results of the test were turned over to the National Safety Council. They will help future safety planning.
1.The author’s purpose is to ___________.
A.prove that men are better drivers than women |
B.give you safe driving tips(提示) |
C.tell you the results of a national drivers test. |
D.urge you to get an education. |
2.From the information in this article, you could say that _________.
A.older drivers are better informed than younger drivers |
B.experience makes difference among drivers |
C.most drivers failed the test |
D.most people don’t know what a blinking red light means |
3.Which of the following as a group was rated “poorly informed” by the judges?
A.Men. |
B.High school graduate drivers. |
C.Drivers from 27 to 45 years of age. |
D.Drivers with 3 or more years’ experience. |
4.Which of the following statements is NOT true?
A.Men are better informed than women. |
B.Education makes no difference in the pass rate of the drivers. |
C.Chicago drivers are the best informed drivers in America. |
D.The test results will be used as a guide for future safety planning. |
There are two methods by which hydrogen (氢) can be used to power cars. The first way is to use hydrogen to drive the engine, in much the same way as many cars use gas. The second method is to use the reaction of hydrogen with oxygen in a battery, making the car a kind of electric one.
The dream of producing hydrogen in the car while driving along by electrolyzing(电解)water is a long way off, so we are still at the period of batteries and filling the tank with hydrogen gas. This is the difficulty for potential car users and producers. There are only sixteen hydrogen filling stations in Los Angeles and none in 99% of other cities worldwide.
Indeed, some of the big name automobile producers have pulled out of the race to put the first practical hydrogen car on the streets. Ford and GM have announced that they are pulling out in America and so has Renault in France.
However, the Japanese companies are pressing on. In fact, Honda introduced its first hydrogen fuel cell car in 1999. They are now producing second generation hydrogen car known as the FCX Clarity. Guess where they are available for sale? In only one city because of its filling stations.
Honda thinks that they could go into full-scale production of the FCX Clarity by 2020 if the world is prepared for them by then.
Then there are hydrogen-powered buses in several European cities including Amsterdam, Barcelona, Hamburg, London, Luxembourg and Madrid. Lotus, the makers of London taxis, have announced that they propose to manufacture hydrogen-powered taxis in time for the London Olympics.
So, the hydrogen vehicle is out there and the numbers will be growing fairly soon. The buses go back to their bus station, where an electrolyzing machine changes water into fuel for them to fill up on and the same will be the case for many of London’s taxis.
Unfortunately, getting fuel is not the only difficulty for the average motorist, a number of these vehicles cost about $300,000 each.
1.According to the text, hydrogen-powered buses ________.
A.can easily be filled up with gas. |
B.are likely to sell well in the future. |
C.are mainly used in the United States |
D.won’t be used in the London Olympics |
2.What does the underlined word “them” in paragraph 5 refer to?
A.Japanese companies |
B.Hydrogen buses |
C.The FCX Clarity |
D.Filling stations |
3.Where are hydrogen cars currently available for sale?
A.In Barcelona |
B.In Hamburg |
C.In London |
D.In Los Angeles |
4.We can learn from the text that ________.
A.there are sixty hydrogen filling stations all over the world |
B.hydrogen vehicles fueled by water will be very expensive |
C.Honda will mass-produce the FCX Clarity by 2012 |
D.Honda produced its first hydrogen car in 1989 |