题目内容
―$200,but that is my last offer.
―OK,it's a .
A.cost B.price C.deal D.business
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Pollution is reducing the fragrance(芬芳) of plants and thus preventing bees from pollinating(授粉) them—endangering one of the most essential cycles of nature, a new study suggests.
The potentially hugely significant research, funded by US National Science Foundation, has found that gases mainly formed from the emissions(排放) of cars prevent flowers from attracting bees and other insects to pollinate them. And the scientists who have conducted the study fear that insects’ abilities to drive away enemies and attract mates may also be disturbed.
Professor Jose Fuentes, who led the study, said, “Scent molecules(香味分子) produced by flowers in a less polluted environment could travel for roughly 1,000 to 1,200 meters. But today they may travel only 200 to 300 meters. This makes it increasingly difficult for bees and other insects to locate the flowers.”
The researchers, who worked on the molecules of snapdragons(金鱼草),found that the molecules are volatile(易挥发的) and quickly bond with pollutants, mainly formed from vehicle(车辆)emissions. This chemically changes the molecules so that they no longer smell like flowers. A harmful cycle is therefore set up where insects struggle to get enough food and the plants do not get pollinated enough to multiply.
Already bees, which pollinate most of the world’s crops, are in such a great decline that has never been known before in Britain and across much of the globe. At least a quarter of America’s 2.5 million honey bee colonies have been mysteriously wiped out by colony collapse disorder(CCD),where hives are found suddenly deserted.
The crisis(危机) has now spread to Europe. Politicians insist that CCD has not yet been found in Britain, but considering the present number of bees, the agriculture minister Lord Rooker has sent the warning, “The honey bee population could be wiped out in 10 years.”
Although the researchers are not certain whether this is the real cause of CCD, they say that pollution is making life more difficult for bees and other insects in many ways.
【小题1】 In what way does pollution prevent flowers from attracting bees?
A.By shortening the distance traveled by the scent molecules of flowers. |
B.By disturbing the bees’ ability to attract mates. |
C.By weakening the bees’ ability to fight against enemies. |
D.By stopping flowers from giving off fragrance. |
A.Europe is affected greatly by CCD |
B.CCD has destroyed most of the honey bee colonies in Europe |
C.no honey bees will be found all over the world in the near future |
D.European officials have paid much attention to CCD |
A.Traffic Pollution Puts Bees in Danger |
B.Traffic Pollution is to Blame for CCD |
C.Pollution Makes Flowers Lose Their Scent |
D.Pollution Causes the Decrease in Flowers |
A. Set a Good Example for Your Kids B. Build Your Kids’ Work Skills C. Place Time Limits on Leisure Activities D. Talk about the Future on a Regular Basis E. Help Kids Develop Strategies of dealing with different things F. Help Your Kids Figure Out Who They Are G. Build Your Kids’ Sense of Responsibility |
Mothers and fathers can do a lot to ensure a safe landing in early adulthood for their kids. Even if a job’s starting salary seems too small to satisfy an emerging adult’s need for rapid content, the transition from school to work can be less of a setback if the start-up adult is ready for the move. Here are a few measures, drawn from my book Ready or Not, Here Life Comes, which parents can take to prevent what I call “work-life unreadiness.”
【小题1】_________You can start this process when they are 11 or 12. Regularly review their emerging strengths and weaknesses with them and work together on any shortcomings, like difficulty in communicating well or cooperating. Also, identify the kinds of interests they keep coming back to, as these offer clues to the careers that will fit them best.
【小题2】________Kids need a range of real role models. Have regular dinner-table discussions about people the family knows and how they got where they are. Discuss the advantages and disadvantages of your own career and encourage your kids to form some ideas about their own future. When asked what they want to do, they should be discouraged from saying “I have no idea.” They can change their minds 200 times, but having only a foggy view of the future is of little good.
【小题3】_______Teachers are responsible for teaching kids how to learn; parents should be responsible for teaching them how to work. Assign responsibilities around the house and make sure homework deadlines are met. Encourage teenagers to take a part-time job. Kids need plenty of practice developing effective organizational skills, such as managing time and setting priorities(优先).
【小题4】_________Playing video games encourages immediate content(满足). And hours of watching TV shows with canned laughter only teaches kids to process information in a passive way. At the same time, listening through earphones to the songs for a long time encourages kids to stay inside instead of participating in other outdoor activities. All these activities can prevent the growth of children’s communication and thinking skills and make it difficult for kids to develop the kind of sustained (持续的) concentration they will need for most jobs.
【小题5】_________They should know how to deal with setbacks, stresses and feelings of inadequacy. They should also learn how to solve problems and resolve conflicts, ways to brainstorm and think critically. Discussions at home can help kids practice doing these things and help them apply these skills to everyday life situations.
What about the son or daughter who is grown but seems to be struggling and wandering aimlessly through early adulthood? Parents still have a major role to play, but now it is more delicate. Most of all, these new adults must feel that they are respected and supported by a family that appreciates them.