Ginseng Shows Benefit in Cancer Treatment

    1. Flaxseed slowed the growth of prostate tumors in men, while ginseng helped relieve the fatigue that cancer patients often feel, US researchers reported on Saturday in two of the first scientifically rigorous looks at alternative medicine¹.

    2. The studies reflect doctors’ efforts to explore the risks and benefits of foods and supplements that are routinely taken by their patients with little scientific proof they help. ² Americans spend between $ 36 billion and $47 billion a year on complementary and alternative therapies, according to the NationalCenterfor Health Statistics³. “Patients are taking these compounds but we need to know if they are doing any good or any harmt⁴” said Dr. Bruce Cheson of Georgetown University Hospitalin Washington, who led a panel on alternative therapies at a meeting of the American Society of Clinica Oncology⁵.

    3. In the flaxseed study, researchers at Duke University Medical Centerin North Carolinaand colleagues evaluated the seed’s role as a food supplement in 161 men who were scheduled to undergo surgery for prostate cancer. “The growth rate was decreased in the men who got flaxseed,”said Dr. Nancy Davidson, an oncologist at Johns Hopkins Universityin Baltimorewho is president-elect of ASCO. “I think this is fascinating.” Flaxseed is rich in omega-3 fatty acids and lignins, a fiber found on the seed coat. “We were looking at flaxseed because of its unique nutrient profile,” said Wendy Demark-Wahnefried, a researcher in Duke’sSchoolofNursing, who led the study.

    4. Half of the men in the study added 30 grams of flaxseed daily to their diets for about 30 days. Half of the flaxseed group also went on a low-fat diet. After the surgery, the researchers looked at the men’s tumor cells to see how quickly the cancer had multiplied. The cancer ceils in both the flaxseed groups grew about 30 to 40 percent slower than the control group⁶.

5. But Demark-Wahnefried is not ready to prescribe flaxseed. “It’s a healthy food. It has a lot of vitamins and a lot of fiber. But we can not definitively say at this point you should take flaxseed because it is protective against prostate cancer,” she said, adding that flaxseed now needed to be studied to see if it can prevent prostate cancer.

    6. In the ginseng trial, Debra Barton of the Mayo Clinic in Rochester,Minnesota, and colleagues tested three different doses of the herb on patients with a variety of cancers who were expected to live at least six months. Twenty-five percent of patients taking a 1,000-rug dose and twenty-seven percent of patients taking a 2,000-mg dose said their fatigue symptoms were “moderately better” or “much better.” Only 10 percent of those taking a 750-mg dose reported an improvement, which was about the same as the placebo group. Patients in the trial took Wisconsin ginseng from a single crop that was tested for uniform potency. It was powdered and given in a capsule form. “I wouldn’t have predicted this, I have to admit,” Davidson said in an interview. “We might want to test this on a large scale⁷.”

    7. The flaxseed study was funded by the National Institutes of Health⁸ and the ginseng study was supported by US Public Health Service⁹ grants.

词汇：

ginseng ["dʒɪnseŋ]n 人参 flaxseed ["flækssi:d]n 亚麻籽

prostate [ˈprɒsteɪt]n.&adj. 前列腺的 tumo(u)r ["tju:mə(r)]n. 肿瘤

rigorous/ ˈrɪgərəs/adj. 严格的，严密地，精密的

Complementary/ ˌkɒmplɪˈmentri/ adj.补充的

therapy/ ˈθerəpi/n. 疗法，治疗

Compound/ ˈkɒmpaʊnd/n. 混合物;化合物;复合物

panel/ pænl/n. 小组;小组讨论;小组委员会

oncology/ ɒŋˈkɒlədʒi/n. 肿瘤学

Oncologist/ ɒŋ"kɒlədʒɪst/n. 肿瘤学家

president-elect  n. 当选(尚未就职的)总统、__

lignin/ lɪgnɪn/n. 木素，木质素

Nutrient/ ˈnju:triənt/adj. 营养的;n.营养物

profile/ prəʊfaɪl/n. 侧面，轮廓

Prescribe/ prɪ"skraɪb/v. 开处方

fiber/ "faɪbə(r)/(fibre) n. 纤维

Protective/ prə"tektɪv/adj. 保护性的

dose/ dəʊs/n. (一次)剂量

Placebo/ plə"si:bəʊ/n. 安慰剂，安慰剂治疗

fatigue/ fə"ti:ɡ/n. 疲劳

Potency/ ˈpəʊtnsi/n. 药物的效能和效力

symptom/ "sɪmptəm/ n. 症状

Capsule/ "kæpsju:l/ n. 胶囊

注释：

1.two of the first scientifically rigorous looks at alternative medicine：两份最重要的严格对替代药物的科学观察报告。这里first不是数词，而是形容词，意为“最重要的，第一流的”‘而medicine当“药物”解时，指的是“内服药物”。

2.The studies reflect doctors’ efforts to explore the risks and benefits of foods and supplements that are routinely taken by their patients with little scientific proof they help这些研究反映了医生想努力去探究病人平时所食用的食物和添加剂有些什么利弊，然而医生们想要帮助他们却拿不出多少科学根据。本句中with little scientific proof they help是patients的定于从句，省略了关系代词whom；they指医生；with的介词短语中要特别注意little这个词，它单独使用时是个否定词，等于not much（a littel则是肯定词，等于some）。

3.National Center for Health Statistics（NCHS）：全国卫生统计中心

4.do sb good/harm：给（某人）带来好处/害处

5.American Society of Clinical Oncology（ASCO）：美国临床肿瘤学会

6.control group ：对照组，参照组

7.on a large scale：大规模地

8.National Insitutes of Health（NIH）：国立卫生研究院

B by giving different doses of the herb to patients with different cancers

C whether the foods and supplements patients took every day were good or not

D though both flaxseed and ginseng are all healthy alternative medicines

E that either of them is beneficial to cancer patients

F because we still have to see if flaxseed can prvent prosate caancer

It is the unique nutrient profile of flaxseed______.

A:A B:B C:C D:D E:E F:F

下列关于倒角剖面（Bevle Profile）修改器的错误的是（）。

A:在使用倒角剖面（Bevle ProfilE）修改器之前，必须要有一条路径和一个剖面。 B:如果删除原始的倒角剖面，倒角剖面效果会失效。 C:在为样条线对象添加了倒角剖面（Bevle ProfilE）修改器后，产生的模型自身具备贴图坐标。 D:倒角剖面不具备封口（Capping）的功能

Solaris操作系统下，下面哪个命令可以修改/n2kuser/.profile文件的属性为所有用户可读、科协、可执行？（）

A:chmod7442kuser/.profile B:chmod7552kuser/.profile C:chmod7662kuser/.profile D:chmod7772kuser/.profile

在一个终端中修改了环境变量配置文件.bash_profile后，要在此终端中让修改的文件立即生效，可用哪些方法（）。

A:cat.bash_profile B:..bash_profile C:morbash_profile D:sourcbash_profile

The iPod revolutionized the way we consume music. The iPhone made us crazy for apps. And now the iPad is getting ready to rock our love lives—or at least help improve our search for someone to communicate with. In late May, Skout.com will become the first dating site to launch an iPad application. The free app will be similar to the version that’s already available to phone users: members can enter search criteria, such as age range, gender and physical preferences, and a HotMap will show in real time the locations of active Skout users who fit those criteria. The idea is to help members meet up and see if magic happens. The cool thing about the iPad adaptation, says CEO Christian Wiklund, is that its screen is large enough to let the user view the map while simultaneously chatting and searching through another member’s photos.
David Evans, editor of onlinedatingpost.com, says we can expect to see more innovative technology in a few months after companies get acquainted with the capabilities of the iPad. "What I’m looking for are dating sites that are optimized for the iPad, with features native to the sleek computing device like (touch screen motions such as) pinch, twist, zoom and shake," he says. "It’s the iPad that’s going to enable developers to create entirely new ways to browse, discover and connect with singles."
Steve Odom, CEO and founder of dating site Gelato, which launched last year and includes a live feed of members’ social-media profiles, is redesigning his entire website based on the iPad’s appearance. Profile pictures play a key role in online dating, Odom says, and the iPad gives sites an opportunity to play up the presentation of their clientele. "It’s big, it’s beautiful, and it’s perfect for dating sites," says Odom, who plans to unveil the redesign in June.
Evans predicts that online dating sites will begin to display their content like a magazine, letting users flip through pages of profiles and enlarge photos while simultaneously texting with one or more others. He says there’s also been talk of adding a facial-coding and eye-tracking function that would use a webcam on the iPad to refine suggested matches based on a member’s responses to certain profiles. If you grimace, the profile will fade away; if you smile or if your pupils dilate, similar profiles will be suggested. In other words, some day there could be an iPad app for love at first sight.
According to the last paragraph, a facial-coding and eye-tracking function______.

A:could be used to browse the profile pictures more quickly B:is developed based on a member’s response C:can enable the users to get accurate matches more easily D:could support checking profile pictures and texting at once

A health profile is a portrait of all of the factors that influence your health. To draw your health profile, you will need to know what diseases run in your family, what health hazards you may be exposed to at work, how your daily diet compares to the recommended standards, how much time per week you spend exercising and what type of exercise you engage in, how stressful your work and family environments are, what kinds of illnesses you get regularly, and whether or not you have any one of a number of addictions. To complete this portrait, you should have a checkup to determine how your blood, heart, and lungs are functioning. This checkup will seine as a baseline (基础，起点), to which you can then compare later tests.

A:A physical checkup on one’s blood, heart and lungs serves as the basis on which one can evaluate his health status. B:part of one’s health profile. C:the starting point of improving one’s health. D:an example of a health profile.

A health profile is a portrait of all of the factors that influence your health. To draw your health profile, you will need to know what diseases run in your family, what health hazards you may be exposed to at work, how your daily diet compares to the recommended standards, how much time per week you spend exercising and what type of exercise you engage in, how stressful your work and family environments are, what kinds of illnesses you get regularly, and whether or not you have any one of a number of addictions. To complete this portrait, you should have a checkup to determine how your blood, heart, and lungs are functioning. This checkup will seine as a baseline (基础，起点), to which you can then compare later tests.
A physical checkup on one’s blood, heart and lungs serves as

A:the basis on which one can evaluate his health status. B:part of one’s health profile. C:the starting point of improving one’s health. D:an example of a health profil