单选题In the evenings, they go to the mall. Once a week or more. Sometimes, they even leave the dinner dishes in the sink so they will have enough time to finish all the errands. The father never comes—he hates shopping, especially with his wife. Instead, he stays at home to read the paper and put around his study. To do things that the other dads must be doing in the evenings. To summon the sand to come rushing in and plug up his ears with its roaring silence. Meanwhile, the mother arms herself with returns from the last trip. Her two young daughters forget games of flashlight tag or favorite TV shows and strap on tennis shoes and seatbelts: and they're off. On summer nights, when it's light until after the fireflies arrive, the air is heavy and moist. The daughters unroll their windows and stick the whole of their heads out into the slate blue sky, feeling full force the sweaty, honey suckle air. In the cold mall, their rubber soles squeak on shiny linoleum squares. The younger daughter tries not to step on any cracks. The older daughter keeps a straight-ahead gazer her sullen eyes count down each errand as it's done. It is not until the third or, on a good night, the fourth errand that the trouble begins. The girls have wandered over to examine rainbow beach towels, perhaps, or some kind of pink ruffled bedspread. The mother's voice finds them from a few aisles away. Dinner squirms in the daughters' stomachs. Now comes that what-if-I-threw-up-right-this-second? or where-is-a-rabbit-hole-for-me-to-fall-into? feeling that they get around this time of evening, at the mall. The older one shakes her ponytails at the younger one. Her blue eyes hiss the careful-don't-cry warning, but the younger one's cheeks only get redder. Toe by toe, the daughters edge towards housewares where they finger lace placemats or trace patterns in the store carpet with sneakered soles. The mother's voice still finds them, shaking with rage. Finally, heels slapping in her sandals, she strides towards them and then keeps going. They follow, catching her word-trail, "Stupid people. Stupid, stupid, stupid. I HATE stupid people." It's the little skips between steps the younger one takes to keep up with her mother's long, angry legs. It's the car door slamming and the seat belt buckle yanked into place. It's those things that tell the daughters how the next few hours will go. In the car, the older one sighs and grinds her back teeth. The younger one feels her face get hotter and her eyes start to swell. She stares at an ice cream stain on the back of the front seat and sees a pony, a flower, and a fairy in that splash of chocolate mint chip. The mother begins on both at once. "And when we get home, if your shoes are still in the TV room, I'm throwing them out. Same for books. No more shit house. No more lazy, ungrateful kids." And so on and so on through the black velvet sky and across the Hershey bar roads. On into the house with a slap or two. "You'll be happy when I'm in my grave," wails at them as they put on their nightgowns and brush their teeth. The older one sets a stone jaw and the younger one tries not to sob as she opens wide, engulfing her small hand and scrubbing each and every molar. The father is not spared. The volcanic mother saves some up just for him. "Fucking lousy husband. Do-nothing father." And on like that for an hour or so more. Then in the darkest part of the night, it's bare feet and cool hands on a small sweaty forehead. Kisses and caresses and "Sorry Mom got a little mad." Promises for that pink ruffled bedspread or maybe a new stuffed animal. Long fingers rake through the younger one's curls. "Tomorrow evening, we'll get you some kind of treat. Right after dinner, we'll go to the mall./

单选题 {{I}}Questions 11 -13 are based on the following passage. You now have 15 seconds to read questions 11 -13.{{/I}}

单选题Before going to bed, you'd better ______.

单选题Most worthwhile careers require some kind of specialized training. Ideally, therefore, the choice of an 1 should be made even before the choice of a curriculum in high school. Actually, 2 , most people make several job choices during their working lives, 3 because of economic and industrial changes and partly to improve 4 positions. The "one perfect job" does not exist. Young people should 5 enter into a broad flexible training program that will 6 them for a field of work rather than for a single 7 . Unfortunately many young people have to make career plans 8 benefit of help from a competent vocational counselor or psychologist. Knowing 9 about the occupational world, or themselves for that matter, then choose their lifework on a hit-or-miss 10 . Some drift from job to job. Others 11 to work in which they are unhappy or for which they are not fitted. One common mistake is choosing an occupation for 12 real or imagined prestige. Too many high-school students—or their parents for them—choose the professional field, 13 both the relatively small proportion of workers in the professions and the extremely high educational and personal 14 . The imagined or real prestige of a profession or a "white-collar" job is 15 good reason for choosing it as lifework. 16 , these occupations are not always well paid. Since a large proportion of jobs are in mechanical and manual work, the 17 of young people should give serious 18 to these fields. Before making an occupational choice, a person should have a general idea of what he wants 19 life and how hard he is willing to work to get it. Some people desire social prestige, others intellectual satisfaction. Some want security, others are willing to take 20 for financial gain. Each occupational choice has its demands as well as its rewards.

单选题 Questions 11-13 are based on the following monologue about American advertising. You now have 15 seconds to read Questions 11-13.

单选题It is better for you to ______ in bed.

单选题 Being a man has always been dangerous. There are about 105 males born for every 100 females, but this ratio drops to near balance at the age of maturity, and among 70-year-olds there are twice as many women as men. But the great universal of male mortality is being changed. Now, boy babies survive almost as well as girls do. This means that, for the first time, there will be an excess of boys in those crucial years when they are searching for a mate. More important, another chance for natural selection has been removed. Fifty years ago, the chance of a baby (particularly a boy baby) surviving depended on its weight. A kilogram too light or too heavy meant almost certain death. Today it makes almost no difference. Since much of the variation is due to genes, one more agent of evolution has gone. There is another way to commit evolutionary suicide: stay alive, but have fewer children. Few people are as fertile as in the past. Except in some religious communities, very few women have 15 children. Nowadays the number of births, like the age of death, has become average. Most of us have roughly the same number of offspring. Again, differences between people and the opportunity for natural selection to take advantage of it have diminished. India shows what is happening. The country offers wealth for a few in the great cities and poverty for the remaining tribal peoples. The grand mediocrity of today—everyone being the same in survival and number of off-spring—means that natural selection has lost 80% of its power in upper-middle-class India compared to the tribes. For us, this means that evolution is over; the biological Utopia has arrived. Strangely, it has involved little physical change. No other species fills so many places in nature. But in the past 100000 years—even the past 100 years—our lives have been transformed but our bodies have not. We did not evolve, because machines and society did it for us. Darwin had a phrase to describe those ignorant of evolution: they "look at an organic being as a savage looks at a ship, as at something wholly beyond his comprehension". No doubt we will remember a 20th century way of fife beyond comprehension for its ugliness. But however amazed our descendants may be at how far from Utopia we were, they will look just like us.

单选题Scientists have known since 1952 that DNA is the basic stuff of heredity. They've known its chemical structure since 1953. They know that human DNA acts like a biological computer program some 3 billion bits long that spells out the instructions for making proteins, the basic building blocks of life. But everything the genetic engineers have accomplished during the past half-century is just a preamble to the work that Collins and Anderson and legions of colleagues are doing now. Collins leads the Human Genome Project, a 15-year effort to draw the first detailed map of every nook and cranny and gene in human DNA. Anderson, who pioneered the first successful human gene-therapy operations, is leading the campaign to put information about DNA to use as quickly as possible in the treatment and prevention of human diseases. What they and other researchers are plotting is nothing less than a biomedical revolution. Like Silicon Valley pirates reverse, engineering a computer chip to steal a competitor's secrets, genetic engineers are decoding life's molecular secrets and trying to use that knowledge to reverse the natural course of disease. DNA in their hands has become both a blueprint and a drug, a pharmacological substance of extraordinary potency that can treat not just symptoms or the diseases that cause them but also the imperfections in DNA that make people susceptible to a disease. And that's just the beginning. For all the fevered work being done, however, science is still far away from the Brave New World vision of engineering a perfect human-or even a perfect tomato. Much more research is needed before gene therapy becomes commonplace, and many diseases will take decades to conquer, if they can be conquered at all. In the short run, the most practical way to use the new technology will be in genetic screening. Doctors will be able to detect all sorts of flaws in DNA long before they can be fixed. In some cases the knowledge may lead to treatments that delay the onset of the disease or soften its effects. Someone with a genetic predisposition to heart disease, for example, could follow a low-fat diet. And if scientists determine that a vital protein is missing because the gene that was supposed to make it is defective, they might be able to give the patient an artificial version of the protein. But in other instances, almost nothing can be done to stop the ravages brought on by genetic mutations.

单选题Children like to go to the park ______ Sundays. [A] at [B] in [C] on

单选题The letter A in The Scarlet Letter represents______. A. Adultery B. Able C. Angel D. All of Above