问答题 One of the most fashionable treatments for disease, gene therapy, has so far made little headway in tackling one of the most modish of illnesses, AIDS and the human immunodeficiency virus (HIV) that causes it. 46. {{U}}The idea of gene-therapy treatment for HIV/AIDS would be to create a gene that, when placed in an infected person, would make all of the offspring of the cell into which it was inserted resistant to the virus.{{/U}} Even if the virus continued to destroy the patient's immune cells, new ones that could not be infected would replace them. Eventually, the disease would no longer threaten the health of the patient. A first step towards this has been achieved by researchers at the University of Pennsylvania and VIRXSYS, a biotechnology firm based near Baltimore. 47.{{U}} Rather than inserting a gene directly, they removed the immune cells from people and replaced them with versions that had been modified to resist the virus. {{/U}}The results were published in this week's issue of the Proceedings of the National Academy of Sciences. The team treated five infected patients who had not responded to at least two different programmes of treatment using conventional anti-retroviral drugs. They removed from each patient's blood the cells called "helper T-cells" that would normally mobilise the immune response to the virus. 48. {{U}}These were purified and stuffed with a form of HIV that had been altered to carry a mirror image or "antisense" version of a molecule that enables it to multiply. {{/U}}This genetic fiddling disrupted the reproduction of the virus inside infected cells. Such a small experiment was designed merely to establish whether the approach was safe. But the researchers were pleasantly surprised to find that the number of viruses in each patient dropped. This suggests that the treatment was tackling the disease effectively in difficult patients for whom conventional drugs had failed. 49. {{U}}According to Carl June of the University of Pennsylvania, their immune systems responded "as if they were on a vaccine" and it appeared as though their bodies were "vaccinating themselves" against HIV.{{/U}} The researchers are now moving to the next phase of study, which will involve more patients, including those whose disease is in its early stages. 50. {{U}}If later trials confirm the early positive results, this approach could prove a useful complement to existing drugs or a future vaccine -- and may even replace them.{{/U}}

问答题I told him how to get here, but perhaps I should have given him a map.

问答题Directions:Writeanessayof160-200wordsbasedonthedrawing.Inyouressay,youshould1)describethedrawingbriefly,2)interpretitsintendedmeaning,and3)giveyourcomments.YoushouldwriteneatlyontheANSWERSHEET.

问答题Directions: Read the following Chinese text and write an abstract of it in 80--100 English words on ANSWER SHEET 2. 如何让你的大脑更聪慧 益智的药物。到了40岁左右，诚实的人就可能承认已经注意到他们的智力变化了。这是逐渐衰退的开端，我们当中有很多人到头来会变为痴呆。有几种可能产生被称为“认知增强”效果的药物，它们已经出现在市场上，还有二三十种其他药物也即将面世。或许最著名的要算莫达菲尼(modafinil)了。莫达菲尼可以使人保持清醒和机警连续达90小时，不会出现紧张不安和注意力不集中。事实上，失眠的人们在莫达菲尼的帮助下甚至能比他们充分休息而不用药时的表现还要好。 有益于思维的食物。你的大脑是你身体里最贪婪的器官，对饮食有某些相当特殊的要 求。所以你吃的东西会影响你怎样思维，就不足为奇了。 首先，早餐必须具备最高的质量。给大脑持续稳定地供应葡萄糖是对大脑最好的营养方式，许多研究已经表明，不吃早餐会降低人们在学校和工作中的表现。英国厄尔斯特大学的巴巴拉·斯图尔特曾发现，烤面包加豆类是极好的组合。吃烤面包会在各种认知测试中增加儿童们的得分，但是如果测试变得难度更高，则含有高蛋白豆类的早餐效果最好。 对午餐的明智选择是炒鸡蛋和沙拉。鸡蛋富含胆碱，身体用它制造神经传递素乙酰胆碱。乙酰胆碱的低水平也与阿尔茨海默氏病有关，而有些研究表明，增加膳食的摄入量可以延缓与年龄有关的记忆丧失。午后3时左右，不要忘记弄点儿点心吃，以保持你体内的葡萄糖水平。 最后，你最好用草莓和蓝莓结束晚餐。用这些水果饲养的大家鼠已表现出了协调力、注意力和短期记忆力的提高。 莫扎特效应。如今在威斯康星大学奥什科什分校工作的心理学家弗朗西斯·劳谢尔，10年前和她的同事们发现，听莫扎特的音乐可以提高人们的数学和空间推理能力，从而轰动一时。上音乐课的6岁儿童，与那些上戏剧课或者没有接受课外教育的儿童相比，他们的智商得分会高出2至3点。与此相似，劳谢尔发现，在空间推理测验方面，上过两年音乐课的学龄前儿童比上过计算机课的儿童得分更多。 有益的记忆训练。人的智商是用脑力解决问题的各种能力(包括空间推理的各种技能、记忆和言辞推理)的一种测量尺度。直到最近，人们一直认为智商主要是由遗传学确定下来的固定不变的东西。但是近来有些线索表明，称为暂存记忆的一种最基本的大脑功能可能构成我们一般智力的基础，同时展现出让人感兴趣的可能性：如果你的暂存记忆得到改善，你的智商也就可以得到提高。 良好的睡眠。睡眠不足对你的大脑极为有害。编制计划、解决问题、学习、集中注意力、暂存记忆和保持警惕，这一切都会遭受冲击。智商得分急剧下降。幸运的是，这种情况可以逆转，而且还不止于此。如果你让不失眠的人多睡上一两个小时，他们完成需要持久注意力的任务(如考试)会比平常时好得多。 锻炼身体。对于那些厌烦学习的人来说，他们的夙愿得以实现。只要一个星期3次均衡慢速地步行半小时，就能将学习、专注和抽象推理等能力提高15%。在岁数较大的人中，这些效应特别显著。经常步行的老年人在记忆测试中的成绩比坐着不动的同龄人要好得多。更重要的是，几年下来，他们在各种认知测试中的得分比那些不步行的人的得分显示出少得多的下降。 积极的神经反馈。神经反馈是从20世纪60年代流行的生物反馈疗法发展出来的。它通过向人们显示他们生理机能的某个看来不可控制方面(例如心率)的实时测量数字，并促使他们努力改变这个数字来达到治疗目的。令人惊讶的是，许多病人发现他们能够改变这个数字，不过他们很少有人能够描述是怎样做成这件事的。 德国蒂宾根大学的内尔斯·毕尔鲍麦尔想要了解，神经反馈是否能帮助患精神病的罪犯控制他们的冲动。而且有迹象表明，这种方法能提高创造性，增强我们的兴奋度，给懦弱的人以更多的自信，提高低落的情绪，改变左右脑活动间的平衡，还能改变性格特征。所有这一切都归功于大脑思维的力量。

问答题这里的人民已摆脱了贫穷，并且过上了幸福且舒适的生活。

问答题 However, members may maintain or introduce measures which result in higher standards if there is scientific justification or as a conse quence of consistent risk decisions based on an appropriate risk assessment.

问答题What are the main contents in force majeure clause?

问答题庆贺信

问答题波音

问答题Glottal Stop（四川大学2006研)

问答题 {{U}}"Being angry increases the risk of injury, especially among men," new research says.{{/U}} The researchers gathered data on more than 2, 400 accident victims at three Missouri hospitals. They interviewed each subject to determine the patient's emotional state just before the injury and 24 hours earlier, gathering data on whether the patients felt irritable, angry or hostile, and to what degree. Then they compared the results with a control group of uninjured people. (52) {{U}}Despite widespread belief in "road rage," anger did not correlate with injuries from traffic accidents{{/U}}. (53) {{U}}Not surprisingly, anger was strongly associated with injuries inflicted deliberately.{{/U}} But other injuries--those neither intentionally inflicted nor from falls or traffic accidents--also showed strong associations with anger. (54) {{U}}The correlations were significantly weaker for women than for men, but there were no differences by race{{/U}}. The authors acknowledge that their data depend on self-reports, which are not always reliable. (55) {{U}}Why anger correlates with injury is not known.{{/U}} "I can speculate that the anger may have prompted some behavior that led to the injury, or may have simply distracted the person, leading in directly to the injury," said the study's lead author.

问答题智囊团

问答题I would apply for the job if I were you. I think you stand a good chance.

问答题Directions: For this part, you are required to write a composition entitled Family and Personal Development in 3 paragraphs. Write no less than 150 words.

问答题Directions: Study the following graph carefully and write an essay. Your essay should meet the requirements below: (1)describe the graph and interpret its meaning, (2)point out the problems and give your comments. You should write 160--200 words neatly.

问答题Directions: You want to invite a friend to a party. Write an invitation letter to a friend: 1) saying where the party will be held, 2) giving the reason(s) for the party, and 3) stating what will be arranged. You should write about 100 words. Do not sign your own name at the end of the letter; use "Li Ming" instead. Do not write your address.

问答题What is Fricative? List all the fricative sounds in English.

问答题Directions: In this part you are required to write a composition of no less than 150 words about Sport. Remember to write clearly and logically.

问答题Please write an argumentation based on the following topic and elaborate your point of view in about 200 words. Remember to write your composition neatly and clearly on ANSWER SHEET II. Mandarin, or putonghua, is the standard service sector language in our country. But recently, employees at a big city's subway station have been busy learning dialects of other parts of the country. Proponents say that using dialects in the subway is a way to provide better service. But opponents think that encouraging the use of dialects in public counters the national policy to promote putonghua. What is your opinion? Write an essay of about 200 words on the following topic: Are Dialects Just as Acceptable in Public Places?

问答题{{B}}Directions:{{/B}} In this part, you are required to write a composition entitled My View on Celebrities in no less than 200 words. Your composition should be based on the following outline: 1. The advantages of being a famous person. 2. The disadvantages of being a famous person. 3. My hope for celebrities.