.
The mystery had reached its climax（高潮）：The man had undoubtedly been murdered．However, no one present knew who could have killed such a kind person． It was therefore time to call in the great detective, who gave one searching glance at the corpse（尸体）, and then used a microscope．
“Aha!” he jumped as he picked a hair off the dead man’s coat．“The mystery is a mystery no longer．We have only to find the man who lost this hair, and the criminal will be in our hands．” The chain of logic was complete, and the detective started to do his search．
For four days and four nights he moved unobserved through the streets of New York, scanning closely every face, looking for a man who had lost a hair．On the fifth day he discovered a man pretending to be a tourist, and his head was enveloped in a cap reaching below his ears．The man was about to board the Gloritania, and the detective lost no time in following him on board．
“Arrest him!” shouted the detective, and then, drawing himself to his full height, he took out the hair．“This is his,” said the great detective, “and it proves his guilt．”
“Remove his hat,” ordered the ship’s captain firmly．
It was discovered that the man had no hair．
“Aha!” said the great detective without a moment’s hesitation． “He has committed not one murder, but about one million!”
60．Before the great detective arrived, it seemed that ________．
A．the man had died of natural causes B．no one could possibly have murdered the man
C．the mystery would be easy to solve D．the dead man was covered with hair
61．The detective declared the mystery would be solved soon _________．
A．after he found the murderer B．before he used the microscope
C．after he found a hair D．before he looked at the corpse
62．The tone of this story is ________．
A．scientific B．serious C．educational D．humorous
63．The main idea of this story is that ________．
A．those using logic are not always logical
B．mysteries can be solved by observation
C．detectives can never be trusted
D．guilt can be proved scientifically
Ask any group of teenagers in the UK what they most like to eat, and foods like pizza, burgers and chips are always mentioned.
But what teenagers like to eat is not necessarily what they should be eating. According to the National Diet and Nutrition (营养) Survey, far too many young people in the UK between the ages of 4 and 18 eat too much fat, sugar and salt in their diet and take in too many calories. And their intake of starchy carbohydrates (含淀粉的碳水化合物), fiber, iron, vitamins and calcium (钙) is too low.
For a growing body, eating foods containing plenty of calcium, such as milk, yoghurt and cheese, is very important as calcium is essential for the development of healthy, strong bones. Similarly, foods that are rich in iron are good for young rapidly developing bodies, so red meat, bread, green vegetables, and dried fruit are also good to eat.
It is during our teenage years that lifestyle habits can become entrenched (根深蒂固的), so it is important that young people are educated about what foods are good for them. In 2005, in order to change eating habits and open teenagers' minds to new tastes, chef Jamie Oliver started a "Feed Me Better" project. As part of a television series, "Jamie' s School Dinners", he worked with teachers and cooks in a number of schools across the UK to provide more nutritious school meals. Although some teenagers and parents refused to have a try at first, the project went very well and helped to influence governmental policy on nutritional standards for school meals.
No one expects to end the teenage love affair with fast and junk food but, hopefully, if projects like "Feed Me Better" continue to give out the right messages, more young people will understand the importance of eating healthily.
What problem do teenagers in the UK have?
| A．Most of them are too fat. |
| B．Most of them eat too little. |
| C．Many of them don' t eat healthily. |
| D．Many of them are short of exercise. |
The underlined word "essential" in Paragraph 3 is closest in meaning to" "
| A．difficult | B．possible |
| C．common | D．necessary |
According to the text, the "Feed Me Better" project _ _
| A．proved to be a success |
| B．taught teachers how to cook |
| C．was started by the government |
| D．was started at Jamie's school first |
Which of the following opinions does the author probably agree to?
| A．Lifestyle habits are difficult to change. |
| B．Too much red meat is also bad for health. |
| C．Teenagers should learn to feed them better. |
| D．Teenagers should stop eating fast and junk food. |
March 21 has been declared World Sleep Day, a time to recognize and celebrate the value of sleep. Many sleep experts hope it will be a wake-up call.
According to a poll (民意调查）by the National Sleep Foundation, nearly 4 in 5 Americans don’t get as much sleep as they should during the workweek. On average, adults are thought to need at least eight hours of sleep a night, although some can manage with less and some won’t do well without more. But the survey found that, on workdays, only 21% of Americans actually get a full eight hours of sleep, and another 21% get less than six.
To many of us, the thought of spending more time sleeping is, well, a big yawn. On the other hand, the thought of being smarter, thinner, healthier and more cheerful has a certain appeal. And those are just a few of the advantages that can be ours if we consistently get enough sleep, researchers say. Also on the plus side: We’re likely to have better skin, better memories, better judgment, and, oh, yes, longer lives.
“When you lose even one hour of sleep for any reason, it influences your performance the next day,” says Dr. Alon Avidan, director of the UCLA Sleep Disorders Center.
A study published last year found the same to be true even of children. When kids aged 8 to 12 slept for just one hour less for four nights, they didn’t function as well during the day.
But sleeping has an image problem. “We see napping or sleeping as lazy,” says Jennifer Vriend, a clinical psychologist in Ottawa, Canada, and the leading author of the study with children. “We put so much emphasis on diet, nutrition and exercise. Sleep is in the back seat.” In fact, she adds, no matter how much we work out, no matter how well we eat, we can’t be in top physical shape unless we also get plenty of sleep.The underlined part in Paragraph 1 means _____.
| A．To wake up the sleepers |
| B．To draw people’s attention |
| C．To serve as a morning call |
| D．To declare the special day |
From Paragraph 3 we can infer that _______
| A．Being healthier is one of the advantages for us |
| B．Sleeping has nothing to do with one’s expectations |
| C．Spending more time on sleeping is a waste of time |
| D．Enough sleep is the guarantee of the appealing things |
What Jennifer Vriend said in the last paragraph implies that _______.
| A．Sleeping is an image problem |
| B．People care little about sleeping |
| C．Lazy people tend to sleep long |
| D．Sleeping is only part of our life |
What is the purpose of the passage?
| A．To talk about people’s sleeping problems. |
| B．To provide an investigation result of sleeping. |
| C．To arouse the awareness of enough sleeping. |
| D．To stress the function of sleeping at night. |
Cleverness is a gift while kindness is a choice.Gifts are easy—they’re given after all.Choice can be hard.
I got the idea to start Amazon 16 years ago.I came across the fact that the Internet usage was growing at 2300 percent per year.I’d never seen or heard of anything that grew that fast，and the idea of building all online bookstore with millions of titles was very exciting to me. I had just turned 30 years old，and I’d been married for a year.I told my wife MacKenzie that I wanted to quit my job and go to do this crazy thing that probably wouldn’t work since most start-ups don’t and I wasn’t sure what to expect.MacKenzie told me I should go for it.As a young boy，I’d been a garage inventor.I’d always wanted to be all inventor，and she wanted me to follow my passion.
I was working at a financial firm in New York City with a bunch of very smart people and I had a brilliant boss that I much admired.I went to my boss and told him I wanted to start a company selling books on the Internet.He took me on a long walk in Central Park，listened carefully to me，and finally said，“That sounds like a really good idea，but it would be an even better idea for someone who didn’t already have a good job.”That 1ogic made some sense to me，and he convinced me to think about it for 48 hours before making a final decision.Seen in that light,it really was a difficult choice，but finally，I decided I had to give it a shot.I didn’t think I’d regret trying and failing.And I suspected I would always be haunted by a decision to not try at all.
After much consideration ，I took the less safe path to follow my passion ，and I’m proud of that choice.For all of us，in the end，we are our choice.What inspired the author with the idea of building an online bookstore?
| A．His dream of being an inventor. |
| B．The support of his wife. |
| C．The greatly increasing usage of the Internet. |
| D．Millions of exciting titles, |
Which of the following is closest in meaning to the underlined sentence?
| A．The idea of not trying would keep coming to his mind and disturb him. |
| B．He would be very excited if he tried it out. |
| C．Be would be always having a doubt if he didn’t try. |
| D．The decision to not try the online bookstore would terrify him. |
Which of the following would be the best title for the passage?
| A．Cleverness and Kindness | B．The Starting of Amazon |
| C．Following My Passion | D．We Are What We Choose |
We can know from the passage that_______.
| A．the boss thought the idea was suitable for the author |
| B．the author wanted someone else to try the idea |
| C．the author might not regret if he failed the idea |
| D．the author might go back to his boss if he failed |
Volunteering
Just like the animals we shelter, people are very special to us. The Animal Shelter of Sacramento County has 300 active volunteers and always wants to add more. If you have a few hours each week and a love for dogs and cats, we at the shelter welcome your coming.
Children 10 years of age or older are allowed to take part in some of our programs as youth volunteers when accompanied (陪伴) by an adult. The adult car be a parent, or guardian (监护人) 18 years of age or older
Youth Volunteer Opportunities
Youth volunteers may fill the position of dog nuzzler, cat snuggler, or kennel aide, if there are openings (空缺). Please call our volunteer information hotline at 1-800-290-5992 to hear a recording of the positions available.
Dog Nuzzlers
Dogs need human care and exercise to keep their health and level of comfort around people. Dog nuzzlers walk and clean the dogs staying at the shelter. Dog nuzzlers must be knowledgeable about dogs and able to deal with medium-sized to large-sized dogs. Youth volunteer dog nuzzlers must be able to work at least two hours between 9 A.M. and 5 P.M. on Sundays.
Cat Snugglers
Help our cats keep their lovely qualities by giving them lots of attention. Cat snugglers must be knowledgeable about cats and their needs. Youth volunteer cat snugglers must be able to work at least two hours between 9 A.M. and 5 P.M. on Saturdays.
Kennel Aides
Providing food and water for the animals at the shelter is a demanding job. Kennel aides assist the Animal Shelter staff in feeding the animals in our care. Kennel aides must be able to work at least two hours between 9 A.M. and 5 P.M. on either Saturdays or Sundays.
The main purpose of this text is to .
| A．look for youth volunteers |
| B．call on people to protect animals |
| C．introduce what the voluntary work is |
| D．teach people how to care for animals |
Any young person who wants to work shelter should .
| A．work all day long |
| B．be over 18 years old |
| C．call its information hotline first |
| D．have rich experience of raising animals |
What' s the duty of a kennel aide?
| A．To walk the animals. | B．To train the animals. |
| C．To feed the animals. | D．To treat the animals. |
Space is a dangerous place, not only because of meteors (流星) but also because of rays from the sun and other stars. The atmosphere again acts as our protective blanket on earth. Light gets through, and this is necessary for plants to make the food that we eat. Heat, too, makes our environment endurable. Various kinds of rays come through the air from outer space, but enormous quantities of radiation from the sun are screened off. As soon as men leave the atmosphere they are exposed to this radiation but their spacesuits or the walls of their spacecraft, if they are inside, do prevent a lot of radiation damage.
Radiation is the greatest known danger to explorers in space, The unit of radiation is called “rem” Scientists have reason to think that a man can put up with far more radiation than 0.1rem without being damaged; the figure of 60 rems has been agreed on. The trouble is that it is extremely difficult to be sure about radiation damage. A person may feel perfectly well, but the cells of his or her sex organs may be damaged, and this will not be discovered until the birth of deformed children or even grandchildren. Missions of the Apollo flights have had to cross belts of high radiation and , during the outward and return journeys, the Apollo crew accumulated(积累) a large amount of rems. So far, no dangerous amounts of radiation have been reported, but the Apollo missions have been quite short. We simply do not know yet how men are going to get on when they spend weeks and months outside the protection of the atmosphere, working in a space laboratory. Drugs might help to decrease the damage done by radiation, but no really effective ones have been found so far.In which way is the atmosphere necessary to man according to the first paragraph?
| A．It screens off the falling meteors. |
| B．It provides enough light for plants to grow. |
| C．It supplies the heat necessary for human survival. |
| D．It protects him against the harmful rays from space. |
We know from the passage that .
| A．exposure to even tiny amount of radiation is fatal( 致命的) |
| B．the effect of exposure to radiation is slow in coming |
| C．radiation is avoidable in space exploration |
| D．astronauts in spacesuits needn’t worry about radiation damage |
The underlined word “deformed” probably means .
| A．badly-shaped | B．weak |
| C．naturally-grown | D．ugly |
It can be inferred from the passage that .
| A．the Apollo mission was very successful |
| B．astronauts will have deformed children or grandchildren |
| C．protection from space radiation is no easy job |
| D．radiation is not a threat to well-protected space explorers |