如何快速切换到用户John的主目录下？（）

A:cd@John B:cd#John C:cd&John D:cd~John

Text 2
Bobby and his master, farmer John Gray, were familiar sights in Edinburgh. Every Wednesday after a visit to market and exactly as the time-gun boomed one o’ clock, the two would enter Traill’ s Dining Room for their midday meal, a frugal lunch for Gray, and a bun for Bobby.
Then in 1858, the schedule was interrupted. Farmer Gray died. Three days after the funeral exactly at one o’ clock, Traill found him self looking into a pair of beseeching canine eyes. Bobby got his bun and disappeared. This was repeated for several days until Traill’ s curiosity got the better of him. He followed the small terrier as he left and raced to his master’ s grave. There he remained each day, fair or foul, despite the efforts of dog-loving townspeople to give him a new home. The graveyard caretaker, while sympathetic, was at first not so willing to let him in. But Bobby’ s devotion and fidelity were so great that the caretaker provided Bobby with a shelter close to the grave to protect him from bad weather.
Then, after nine years, Bobby was arrested as a vagrant because he had no license. The restaurant keeper appeared in court with Bob by mile was released by merciful justice. But just to make sure the law could not touch him. Lord Provost William Chambers paid Bobby’ s fee each year and presented him with a brass-plated collar inscribed "Grey friars’ Bobby from The Lord Provost, 1876, License."
After that, Grey friars’ Bobby was allowed to keep his lonely vigil undisturbed. He never varied his mealtime. Each day he left the graveyard as the gun roared one o’ clock to pick up his bun and take it back to eat at his master’ s side. He must have been really hardy for he lived until 1872, having kept to his solitary .post for fourteen long years. He was buried in Grey friars’ , of course, in a flower bed near John Gray’ s tombstone.

From the passage, we know that Bobby was（）

A:John Gray' s servant B:a dog C:a vagrant D:John Gray' s son

Text 4
On the morning of April 15,38,500 worshippers from all over the world will descend upon the tiny town of Hopkinton, Massachusetts. In a bizarre rite they will shed most of their clothes, spread petroleum jelly over the more sensitive parts of their bodies and affix little time- keepers to their shoelaces. Then, as the appointed hour of noon approaches, they will either stand in line at one of the 750 portable toilets or, much to the chagrin of Hopkinton’ s 10,000 regular residents, go natural. At the report from a gun, they will try to race 26 miles, 385 yds. , all the way to Boston. In other words, they will "run Boston." And not just any "Boston." This will be the 100th Boston Marathon.
The sign in Hopkinton Green that commemorates the marathon reads WELCOME TO HOPKINTON. IT ALL STARTS HERE. Actual y, it all started down the road in Ashland on Patriots’ Day April 19,1897, when 15 men from the Boston area and New York City entered the first Boston Athletic Association Marathon. A 22 - year - old lithographer from New York named John McDermott won the race, though not easily. A few miles from the finish McDermott had to stop because of intense leg cramps. Fortunately, he had an attendant who answered McDermott’ s command, "Rub!" and he crossed the finish line in 2: 55: 10--which would have been good enough for683rd place in last year’s Boston Marathon.
Times have changed, of course. The road to Boston is now paved. The leather shoes that McDermott wore gave way to canvas sneakers that gave way to leather shoes. The start was moved from Ashland to Hopkinton in 1924 in order to lengthen the course to the classic marathon distance. And in recent years, the traditional post - marathon beef stew served by the BAA has been’ replaced by a pre - marathon pasta party sponsored by Ronzoni. But from the beginning, Boston has been immensely popular: the seventh running of the marathon in 1903 attracted 200,000 spectators. This year an estimated 1.5 million will cheer the runners on as they move from Hopkinton to Ashland to Framingham to Natick to Wellesley to... "Its obvious strength is 100 years of the best runners in the world," says Bill Rodgers, the folk hero who has won Boston four times. "But it is also the best course anywhere. You run through small towns on your way to Boston. You really have a sense of making progress."
If Boston has a patron saint, it is John A. Kelley, who first ran the race in 1928 when he was 20 and last ran the race in 1992 when ha was 84. In 1935 Kelley, who was then a floral assistant outdueled toolmaker Pat Dengis, eliciting this response from Dengis: "Would you imagine this, a florist runs 26 miles for a laurel wreath!" Though he received a police escort. home to Arlington, Massachusetts, and a telegram from the Governor, Kelley was back at work the next day, preparing Easter lilies at Anderson’s Florist Shop. He also won in 1945 at the advanced age of 37 and told a reporter, "Life merely begins at 40, and I have three years to go. ’ Kelley no longer runs in the marathon, but runners can still pass him on Heartbreak Hill in Newton, where there are twin statues of Kelley--as he ran in his first victory and as he ran in his 61st Boston.

Which of the following statements is NOT true about John McDermott（）

A:John McDermott was one of 15. men that entered the first Boston Athletic Association Marathon. B:John McDermott was the first winner in the history of Boston Marathon. C:An attendant rubbed John McDermott' s leg so as to get over the leg cramps. D:John McDermott ranked 683rd in last year's Boston Marathon.

John Snow's remarks are mentioned in the text to show______.

A:his reluctance to get involved B:Americans' concern about the issue C:Washington's hatred of the man at the pump D:his attitude towards the Saudi decision

Which of the following statements is NOT true about John McDermott

A:John McDermott was one of 15. men that entered the first Boston Athletic Association Marathon. B:John McDermott was the first winner in the history of Boston Marathon. C:An attendant rubbed John McDermott' s leg so as to get over the leg cramps. D:John McDermott ranked 683rd in last year's Boston Marathon.

The idea of a special day to honor mothers was first put forward in America in 1907. Two years later a woman, Mrs. John Bruce Dodd, in the state of Washington proposed a similar day to honor the head of the family—the father. Her mother died when she was very young, and her father brought her up. She loved her father very much.
In response to Mrs. Dodd’s idea that same year—1909, the state governor of Washington proclaimed(宣布) the third Sunday in June Father’s Day. The idea was officially approved by President Woodrow Wilson in 1916. In 1924, President Calvin Coolidge recommended national observance of the occasion "to establish more intimate(亲密) relations between fathers and their children, and to impress upon fathers the full measure of their obligations. ’The red or white rose is recognized as the official Father’s Day flower.
Father’s day took longer to establish on a national scale than Mother’s Day, but as the idea gained popularity, tradesmen and manufacturers began to see the commercial possibilities. They encouraged sons and daughters to honor their fathers with small thank-you presents, such as a tie or a pair of socks, as well as by sending greeting cards.
During the Second World War, American servicemen stationed in Britain began to request Father’s Day greeting cards to send home. This generated a response with British card publishers. Though at first the British public was slow to accept this rather artificial day, it’s now well celebrated in Britain on the third Sunday in June in much the same way as in America.
Father’s Day seems to be much less important as occasion than the Mother’s Day. Not many of the children offer their fathers some presents. But the American fathers still think they are much better fated than the fathers of many other countries, who have not even a day for their sake in name only.

Who first started the idea of holding the Father's Day（）

A:Mrs. John Bruce Dodd. B:Mrs. John Bruce's Mother. C:The government of Washington. D:Some businessmen.

Spending a holiday with another family sounds like a good idea. It enables your kids to play with other kids, enables you to communicate with other parents, and enables your family to rent a bigger and nicer house. It might be too expensive fur your family to rent such a house on your own. However, not all sharing holidays are pleasant for everyone.
Clare is a mother of four. She used to spend holidays with her friends. However, she found that the experience was painful although her friends are nice people. Her friends rented a nice house and invited her family to join them. The house was much more expensive than Clare was able to pay for. In addition, her children were too yuung to enjoy the holiday. The big problem was that Clare had to share the cooking during the holiday. Her friends left their children with their nanny (保姆)when they were cooking. Keeping up with children was tiring for Clare, because she didn’t have a nanny. What’s more, her children didn’t want to be looked after by her friends. As a result, Clare had to look after her children whenever she had to prepare the dinner. What’s worse, Clare’s friends paid too much attention to how many ice creams their children had. They even didn’t care about Clare’s kids at all.
John is a lawyer and father of tour children. He once spent a holiday with one of his best friends. During the holiday, the relationship between John and his wile, became very bad. His friend said that he discovered a whole different side of John.
In the last paragraph, what does tile writer mean by saying "His friend said that he discovered a whole different side of John"

A:John had a different experience from Clare. B:The holiday deepened their friendship. C:John’s best friend was not very friendly to him. D:The holiday revealed a new side of John’s character.

What do you want to be when you grow up A teacher A doctor How about an icecream taster
Yes, there really is a job where you can get paid to taste ice cream. Just ask John Harrison, an "Official Taste Tester" for the past 21 years. Testing helps manufacturers to be sure of a product’s quality. During his career Harrison has been responsible for approving large quantities of the sweet ice cream—as well as for developing over 75 flavors (味道).
Some people think that it would be easy to do this job: after all, you just have to like ice cream, right No—there’s more to the job than that, says Harrison, who has a degree in chemistry. He points out that a dairy or food-science degree would be very useful to someone wanting a career in this "cool" field.
In a typical morning on the job, Harrison tastes and assesses 60 ice-cream samples. He lets the ice cream warm up to about 12 ℉. Harrison explains, "You get more flavor from warmer ice cream, which is why some kids like to stir it, creating ice-cream soup. "
While the ice cream warms up, Harrison looks over the samples and grades each one on its appearance. "Tasting begins with the eyes," he explains. He checks to see if the ice cream is attractive and asks himself, "Does the product have the color expected from that navor. Next it’s time to taste !
Continuing to think up new ideas, try out new flavors, and test samples from so many kinds of ice cream each day keeps Harrison busy but happy—working at one "cool" job.
Which of the following is probably the best title of the passage

A:Tasting with Eyes B:Flavors of Ice Cream C:John Harrison’s Life D:One Cool Job