[Q]: Write a multi-choice question for the following article, with the given choices and answer: Article: When will a plant be considered a weed? Experts have a simple answer: when the undesirable qualities outweigh (,) the good qualities. Crops generally produce several hundred seeds from each plant. By comparison, each weed plant can produce tens or even hundreds of thousands of seeds. And some buried seeds can survive up to forty years or even longer. Eradicating weeds means that you have to remove all the seeds and roots so the weeds will die completely. But birds or the wind can reintroduce them to the land. A common way to deal with weeds is to control them enough so that the land can be used for planting. Experts suggest using more methods to deal with weeds. Chemical weed killers or natural treatments like corn gluten   can suppress weed growth. Bill Curran is a professor of weed science. He says the most efficient method for suppressing weeds is dense planting. Dense planting of a crop can also act as a natural control. A dense and competitive crop that quickly shades the soil will help suppress many weeds. The weed seeds need light to grow, so cutting off sunlight will reduce weed growth. Other controls include turning over the soil, pulling the weeds or covering them with mulch   made of wood, garden waste or other materials. But even mulch has its limits. Natural resource specialists point out that weeds can be transported in mulch. This is also true of soil, grain, hay and animals. Yet animals like sheep or goats eat weeds, so they can provide a biological control. Insects and other organisms can also act as biological controls. Preventing the spread of weeds is an important part of weed management. Farm vehicles should be kept out of areas with weeds. If that is not possible, then clean off the equipment and your shoes when leaving. Some people bum weeds or bury them deep. Experts say the economical way is to make organically rich compost  . On the one hand, the process produces heat which can kill many weed seeds. On the other hand, the compost can be added to the soil to help plants grow. Options: A Because the seeds and roots are bad in quality. B Because weeds have strong ability to live. C Because weeds take up too much space. D Because the seeds and roots will be eaten by birds. Answer: B Because weeds have strong ability to live. Question:
****
[A]: Why do people kill all the seeds and roots of weeds?


[Q]: Write a multi-choice question for the following article, with the given choices and answer: Article: Professor Smith recently persuaded 35 people, 23 of them women, to keep a diary of all their absent-minded actions for a fortnight. When he came to analyse their embarrassing lapses ( ) in a scientific report, he was surprised to find that nearly all of them fell into a few groupings, nor did the lapses appear to be entirely random  .               One of the women, for instance, on leaving her house for work one morning threw her dog her earrings and tried to fix a dog biscuit on her ear. "the explanation for this is that the brain is like a computer," explains the professor. "People programme themselves to do certain activities regularly. It was the woman's custom every morning to throw her dog two biscuits and then put on her earrings. But somehow the action got reversed in the programme," About one in twenty of the incidents the volunteers reported were these "programme assembly failures," Altogether the volunteers logged 433 unintentional actions that they found themselves doing -- an average of twelve each, There appear to be peak periods in the day when we are at our zaniest  . These are two hours some time between eight a.m. and noon, between four and six p.m. with a smaller peak between eight and ten p.m. "Among men the peak seems to be when a changeover in brain 'programmes' occurs, for instance between going to and from work." Women on average reported slightly more lapses- 12.5 compared with 10.9 for men probably because they were more reliable reporters.                  A startling finding of the research is that the absent-minded activity is a hazar of doing things in which we are skilled. Normally, you would expect that skill reduces the number of errors we make. But trying to avoid silly lapses by concentrating more could make things a lot worse or even dangerous. Options: A often fail to programme their routines beforehand B tend to make mistakes when they are in a hurry C unconsciously change the sequence of doing things D are likely to mess things up if they are too tired Answer: C unconsciously change the sequence of doing things Question:
****
[A]: "Programme assembly failures" (Line 6, Para. 2) refers to the phenomenon that people_.


[Q]: Write a multi-choice question for the following article, with the given choices and answer: Article: 2015, the time has come for more creative China tours to be made, Shanghai Disney opens, more high-speed rail options. Insisting on high-quality services, we are proud to present our ever best-selling China tour packages, tour themes and the next popular destinations. Check out the optional activities and information making our Smart Travelers' trips outstanding. China Highlights' most popular private tour. Our private guide, driver and car are available all times. You take the trip, we take the stress. Day 1-2 In Beijing Take a break on your arrival. Enjoy local people's morning exercise at the Temple of Heaven before visiting the Great Wall, and then have a lifetime experience of visiting the Mutianyu section of the Great Wall on Day 2. Day 3-4 In Xi'an Still in Beijing in the daytime of Day 3. Visit the Forbidden City and the Tian'anmen Square to feel royal life in ancient China. After that pay a visit to hutongs which give full flavor of authentic experience. Catch a flight at night to Xi'an. Private guide and driver escort you to visit the highlights of Xi'an on Day 4.[:] Day 5-7 In Guilin/Yangshuo Continue to see Xi'an and have more interacts with the local. Visiting a family in Xi'an and learning how to make different shapes of dumplings give you an unforgettable time. Take a plane at night and arrive at Guilin on Day 5. Get on board to enjoy essence of Guilin, the Li River cruise to Yangshuo. Cycle to villages and meet friendly local people and learn more about Chinese agriculture. Day 8-10 In Shanghai Private transfer from Yangshuo to Guilin airport. Shanghai guide and driver are waiting for you with smiling faces. Highlights of the city on Day 9 show you the future of China as the end of the trip. You have free time on the last day before taking an international flight. Just let us know your travel style! We will then adapt this tour and create a unique quote based on your individual needs. For more information, please click here: http://www.chinahighlights.com/tour/. Options: A Beijing. B Guilin. C Xi'an. D Shanghai. Answer: C Xi'an. Question:
****
[A]: