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1、专题限时训练(三十七)说明文型阅读简答(二) (限时：每篇10分钟)AEven plant can run a fever, especially when theyre under attack by insects or disease. But unlike human, plants can have their temperature taken from 3,000 feet away straight up. A decade ago, adopting the infrared (红外线)scanning technology developed for military pu
2、rposes and other satellites, physicist Stephen Paley came up with a quick way to take the temperature of crops to determine which ones are under stress. The goal was to let farmers precisely target pesticide (杀虫剂) spraying rather than rain poison on a whole field, which invariably includes plants th
3、at dont have pest(害虫)problems.Even better, Paleys Remote Scanning Services Company could detect crop problems before they became visible to the eye. Mounted on a plane flown at 3,000 feet at night, an infrared scanner measured the heat sent out by crops. The data were transformed into a colorcoded m
4、ap showing where plants were running “fevers”. Farmers could then spotspray, using 50 to 70 percent less pesticide that they otherwise would.The bad news is that Paleys company closed down in 1984, after only three years. Farmers resisted the new technology and longterm backers were hard to find. Bu
5、t with the renewed concern about pesticides on produce, and refinements(改进) in infrared scanning, Paley hopes to get back into operation. Agriculture experts have no doubt the technology works. “This technique can be used on 75 percent of agricultural land in the United States，” says George Oerther
6、of Texas A & M, who recently retired from the Department of Agriculture, and he thinks remote infrared crop scanning could be adopted by the end of the decade, but only if Paley finds the financial backing which he failed to obtain 10 years ago.1In what situation will plants have a fever？(No more th
7、an 8 words)_2How can we apply pesticide spraying precisely？(No more than 10 words)_3Why may infrared scanning technology be brought back into operation？(No more than 13 words)answered “yes” to any of the questions above, then youre a victim of computer rage, which means that you let out anger and fr
8、ustration on the devices which are rested with your computer_necessary data onto CDs and DVDs. So in the event of a system crash, you can always regain your files even if the hard drive has to be formatted. Call for help. Make a call to the technology support or IT help desk of your organization, an
9、d ask them to come and have a look at your PC.If you are at home, ask for help from an acquaintance who is good at solving such problems, or take your laptop to the store to get it repaired. Dont shout and express your anger at the people around you. It isnt their fault that your computer crashed. I
10、f you have the technology support working on your problem, make use of the free time by completing unfinished paperwork, making urgent calls, or just chatting with a coworker.In short, you should keep calm and dont let computer rage control you. So learn how to control it, and it wont interfere with
11、 your daytoday activities. 5. What are the common signs of computer rage? (No more than 11 words)_6. What is the main idea of the second paragraph? (No more than 7 words)_7. Why should you always keep a backup of your files? (No more than 13 words)_8. How can you deal with your computer trouble if y
12、ou are at home? (No more than 15 words)_CAccording to a new study, preschool boys perform better on tests that measure learning and other important skills when they are in classes that have more girls than boys. This doesnt seem to apply to girls, though. For preschool girls, the presence or absence
13、 of boys does not affect learning.“The study raises questions about having allboy or allgirl classes for preschool”， says psychologist Arlen Moller, who led the study. She added, “Previous researches have shown that highschool girls may study better in allgirl schools. In middle school, however, the effects of samesex schooling are unclear, and even less is known for very young kids.” To find out, researchers studied 70 preschool classes with a total of 806 children who were between 3.5 a
