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Part ADirections: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. Mark your answers on Answer Sheet 1.Text 1 It might take only the touch of peach fuzz to make an autistic child howl in pain. The odour of the fruit could be so Overpowering that he gags. For reasons that are not well understood, people with autism do not integrate all of their senses in ways that help them understand properly what they are experiencing. By the age of three, the signs of autism-- infrequent eye contact, over-sensitivity or under-sensitivity to the environment, difficulty mixing with others are in full force. There is no cure; intense behavioural therapies serve only to lessen the symptoms. The origins of autism are obscure. But a paper in Brain, a specialist journal, casts some light. A team headed by Marcel Just, of Carnegie Mellon University, and Nancy Minshew, of the University of Pittsburgh, has found evidence of how the brains of people with autism function differently from those without the disorder. Using a brain-scanning technique called functional magnetic-resonance imaging (FMRI), Dr. Just, Dr. Minshew and their team compared the brain activity of young adults who had "high functioning" autism (in which an autist’s IQ score is normal) with that of non-autistic participants. The experiment was designed to examine two regions of the brain known to be associated with language--Broca’s area and Wernicke’s area--when the participants were reading. Three differences emerged. First, Wernicke’s area, the part responsible for understanding individual words, was more active in autists than non-autists. Second, Broca’s area--where the components of language are integrated to produce meaning--was less active. Third, the activity of the two areas was less synchronised. This research has led Dr. Just to offer an explanation for autism, lie calls it "undereonnectivity theory". It depends on a recent body of work which suggests that the brain’s white matter (the wiring that connects the main Bodies of the nerve ceils, or grey matter, together) is less dense and less abundant in the brain of an autistic person than in that of a non-autist. Dr. Just suggests that abnormal white matter causes the grey matter to adapt to the resulting lack of communication. This hones some regions to levels of superior ability, while others fall by the wayside. The team chose to examine Broca’s and Wernieke’s areas because language-based experiments are easy to conduct. But if the underconnectivity theory applies to. the rest of the brain, too, it would be less of a mystery why some people with autism are hypersensitive to their environments, and others are able to do certain tasks, such as arithmetic, so well. And if it is true that underconnectivity is indeed the main problem, then treatments might be developed to stimulate the growth of the white-matter wiring. What will the succeeding paragraph, should there be one, most probably discuss
Text 3 The "MyDoom" virus could presage a generation of computer attacks by organised gangs aiming to extract ransoms from online businesses, experts said yesterday. The warning came as the website run by SCO, a company that sells Unix computer software, in effect disappeared from the web under a blizzard of automated attacks from PCs infected by the virus, which first appeared a week ago. The "MyDoom-A" version of the virus is reckoned to be the worst to have hit the internet, in terms of the speed of its spread, with millions of PCs worldwide believed to be infected. Such "zombie" machines begin to send out hundreds of copies of the virus every hour to almost any e-mail address in their files. On Sunday they began sending automated queries to SCO’s website, an attack that will continue until 12 February. The attack is the web equivalent of ringing the company’s doorbell and running away a million times a second, leaving its computers unable to deal with standard requests to view its pages. "You have to wonder about the time limit," said Graham Cluley, senior technology consultant at the antivirus company Sophos. "Someone could go to SCO after the 12th and say, ’If you don’t want this to happen again, here are our demands’." Raimund Genes, European president of the security software firm Trend Micro, said: "Such a programme could take out any major website on the internet. It’s not terrorism, but it is somebody who is obviously upset with SCO" SCO has earned the enmity of computer users through a lawsuit it has filed against IBM. SCO claims ownership of computer code it says IBM put into the free operating system Linux, and is demanding licence fees and damages of $1bn. Mr. Cluley said: "It might be that whoever is behind this will say to SCO, ’if you don’t want the next one to target you, drop the lawsuit’." SCO has offered $250,000 (￡140,000) for information leading to the arrest of the person or people who wrote and distributed MyDoom. Nell Barrett, of the security company Information Risk Management, said, "I would give a lot of credence to the idea of gangs using viruses to extort money. It’s hard for law enforcement to track them down, because they’re using machines owned by innocent people." A second variant of MyDoom will start attacking part of Microsoft’s website later today. The antivirus company MessageLabs said it had blocked more than 16 million copies of the virus in transit over the net so far. But millions more will have reached their targets. What does the word "they" (Para. 4) refer toy ______.
某煤炭开采企业地面辅助生产系统有维修车间、锅炉房、配电室、油库、办公大楼和车库等。在维修车间，除机械加工设备外，还有1台额定起重量1.5 t、提升高度2 m的起重机，气焊用氧气、乙炔气瓶各5个。燃煤锅炉房有出口水压(表压)0.12 MPa、额定出水温度130℃、额定功率28 MW的锅炉2台。油库有1个储量为7吨的汽油储罐及配套加油设备。办公大楼内安装载人电梯2部。该企业有员工通勤大客车1辆。2009年7月5日10时，电工甲在维修车间进行电气维修。10时30分，车工乙开完会，准备使用机床时发现没电，于是来到电气开关柜前，发现开关柜门开着，没有停电作业警示，就接通电源，造成电工甲触电死亡。 根据以上场景，回答下列问题 说明此次事故调查组的成员构成。
Directions: Read the following text. Choose the best word (s) for each numbered blank and mark A, B, C or D on Answer Sheet 1. The amount of sunlight reaching Earth’s surface appears to be growing. The phenomenon, which some dub "global brightening," (1) scientists with a puzzle. If the (2) is real and global, how long will it last and what are the consequences for climate change, the planet’s water cycle, and other (3) that draw energy from sunlight (4) , the answer might seem obvious: More sunlight reaching the ground in a warming world means that temperatures will get warmer (5) . Not so fast, some researchers say. Additional warming would be certain (6) nothing else in the climate system changes. And the climate system is (7) static. Some combinations of changes could reinforce the heating; others could (8) it. Unraveling these interactions and forecasting their course require an accurate accounting of the sunlight reaching the surface and the (9) the surface sends skyward. Moreover, researchers say, measurements of the sun’s strength at Earth’s surface are potentially powerful tools for (10) human influences on the climate. Earth’s radiation "budget" (11) an "extremely important parameter that is (12) known,’ says Robert Charlson, an atmospheric scientist at the University of Washington at Seattle. "It needs to be (13) much better than it is." (14) about the amount of sunlight reaching Earth’s surface were first raised in 1974. Researchers from the United States and Israel recorded a 12% drop (15) sunlight over 40 years at a (16) station in the southern Sinai Peninsula. Since then, others have used a variety of techniques to try to track (17) sunlight. Three years ago, for example, a (18) led by Beate Liepert at Columbia University’s Lamont-Doherty Earth Observatory gathered data from ground (19) around the world and found that solar radiation reaching the surface fell (20) 4% from 1961 to 1990.
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