题目
题型：不详难度：来源：
Blue/Purple
Blue is considered to be peaceful and calming and it has the same effect on our health. The blue / purple color in food is due primarily to their anthocyanins which are antioxidants (抗氧化剂) that are particularly heart healthy and may help support healthy blood pressure. Out of all the blue and purple foods available, blueberries are considered to have the highest antioxidant level. An analysis of the latest data from the National Health and Nutrition Examination Study found that people who eat purple and blue fruits and vegetables are at a reduced risk for high blood pressure and are less likely to be overweight.
A food and health expert says that blue and purple color foods can prevent blood mass formation, and they also lower the risk of cancer.
Foods that contain blue and purple colors are: reddish eggplant (especially the skin), blueberries, blackberries, purple grapes, etc.
Green
We all know that we should eat green as green symbolizes nature. The green foods are rich in isothiocyanates, which help resist cancer.
Dr. Ashok Agarwal, a food and nutrition specialist, explains, "They are excellent sources of folic acid, vitamin K, as well as carotene （胡萝卜素）. Diets high in those above are associated with lowered blood pressure."
Foods that contain the green color are: broccoli, cabbage, cucumbers, etc.
Red
Lycopene (番茄红素) in reddish fruits and vegetables is a powerful antioxidant that has been associated with a reduced risk of some cancers, and also provides protection against heart attacks.
Dr. Smiths says, "Cooked tomato sauces are associated with greater health benefits as compared with the uncooked version as the heating process allows lycopene to be more easily absorbed by the body. Obtaining the most benefit from food depends on proper selection, storage and cooking of the produce."
Foods that contain red color are: Tomatoes and tomato products, watermelon, guava, red onions, red chili, red apples, red grapes, cherries, etc.
Orange
The orange foods are also rich in carotene, which are particularly good antioxidants. These foods are commonly considered eyesight foods because they contain vitamin A.
"Orange fruits and vegetables also play a part in preventing cancer, particularly of the lungs and stomach. Foods that contain the color orange are: Carrots, mangoes, sweet potatoes, pumpkins, etc.
小题1:The passage tries to tell us that ______.
| A．colors mean a lot to people and their health |
| B．foods of different colors will have different benefits |
| C．eating foods with a color must prevent diseases |
| D．what people should eat in their daily lives |
| A．lowering blood pressure | B．improving eyesight |
| C．preventing cancer | D．reducing the risk of heart disease |
| A．Purple. | B．Green. | C．Red. | D．Orange. |
| A．vitamin A | B．folic acid | C．carotene | D．vitamin K |
| A．all grapes help lower the risk of high blood pressure and cancer |
| B．lung cancer can be prevented by eating red-colored foods |
| C．green-colored foods contain a lot of vitamin A which is good for eye health |
| D．tomatoes should be eaten cooked so that we can benefit the most |
答案
小题1:B
小题2:C
小题3:A
小题4:C
小题5:D
解析
试题分析: 吃不同颜色的食物对我们的健康有好处，同时它们还会改变我们的情绪和行为。文章介绍了一些能改变我们生活的不同颜色的食物。例如蓝色食物会帮助我们降血脂，绿色的食物有利于预防癌症等等。
小题1:B 主旨大意题。根据文章第一段可知文章主要介绍不同颜色的食物能对我们的生活产生不同的作用，由Here is a list of colors, which can change your life可知文章主要讲不同颜色的食物有不同的作用。故选B。
小题2:C 细节题。由第三段A food and health expert says that blue and purple color foods can prevent blood mass formation, and they also lower the risk of cancer.第五段The green foods are rich in isothiocyanates, which help resist cancer. 第八段Lycopene (番茄红素) in reddish fruits and vegetables is a powerful antioxidant that has been associated with a reduced risk of some cancers, and also provides protection against heart attacks.和最后一段 "Orange fruits and vegetables also play a part in preventing cancer, particularly of the lungs and stomach.可知，文中提到的四种颜色的食物都有预防癌症的效果。故选C。
小题3:A 细节题。由第二段An analysis of the latest data from the National Health and Nutrition Examination Study found that people who eat purple and blue fruits and vegetables are at a reduced risk for high blood pressure and are less likely to be overweight. 可知选B。
小题4:C 细节题。从小标题Green下面的段落中发现"They are excellent sources of folic acid, vitamin K, as well as carotene （胡萝卜素），从小标题Orange下面的段落第一句发现 The orange foods are also rich in carotene。可知两种食物都富含胡萝卜素carotene ， 故选C。
小题5:D 推理判断题。 由Cooked tomato sauces are associated with greater health benefits as compared with the uncooked version可知选D。
核心考点
试题【Eating different colored foods can keep you healthy, as well as change your mood】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
RTC.A. an organization which advises the aviation (航空 )industry, has suggested that all airlines ban such devices from being used during "critical" stages of flight particularly take- off and landing. Some experts have gone further, calling for a total ban during all flights .Cur- rently , rules on using these devices are left up to individual airlines. And although some air- lines prevent passengers from using such equipment during take-off and landing, most are un- willing to carry out a total ban, given that many passengers want to work during flight.
The difficulty is predicting how electromagnetic fields might affect an aircraft"s computers. Experts know that portable devices send out radiation which affects those wavelengths which aircraft use for navigation and communication. But, because they have not been able to reproduce these effects in a laboratory. they have no way of knowing whether the interference might be. dangerous or not.
The fact that aircraft may be fragile to interference raises the risk that terrorists may use radio systems in order to damage navigation equipment. As worrying, though, is the passenger who can "t hear the instructions to turn off his radio because the music"s too loud.
小题1:What is said about the over 100 aircraft incidents in the past 16 years?
| A．They may have been caused by the damage to-the radio systems. |
| B．They may have taken place during take-off and landing. |
| C．They were proved to have been caused by the passengers portable computers. |
| D．They were suspected to have resulted from electromagnetic interference. |
| A．Because it is extremely dangerous to conduct such research on an airplane. |
| B．Because it remains a mystery what wavelengths are liable to be interfered with. |
| C．Because research scientists have not been able to produce the same effects in labs. |
| D．Because experts lack adequate equipment to do such research. |
| A．they don"t believe there is such a danger as radio interference |
| B．the harmful effect of electromagnetic interference is yet to be proved |
| C．most passengers refused to take a plane ,which bans the use of radio and cassette players |
| D．they have other effective safety measures to fall back on |
| A．a new rule for all airlines |
| B．the disadvantages of electronic devices |
| C．a possible cause of aircraft incidents |
| D．effective safety measures for air flight |
That might seem an extraordinary act of selflessness for someone turning 20. But there’s increasing evidence that commitment to community service is becoming much more ordinary to today’s young adults.
“Young adults are doing more volunteer service than in any point in history,’’ said Scott Seider, an assistant professor of education at Boston University who studies the civic development of young adults.
At Harvard, the Winthrop Street Homeless Shelter is one of 86 social service programs associated with the Phillips Brooks House Association, which is a student-run nonprofit organization. Students can work with deaf children, bring pets to nursing homes, and prepare Chinese students to become US citizens, and so on.
Volunteerism develops well outside of colleges, too. Applications to AmeriCorps have risen to a very high level, jumping from 91,399 in 2008 to 258,829 in 2010. City Year, which puts young people in high-poverty schools as tutors and mentors for at-risk students, has had a 140 percent increase in applications since its 2007-2008 service year. Citizen Schools, which uses volunteers to work with students in middle schools, has had a 28 percent jump in applicants between 2008 and 2009.
“Most of my friends know it’s their duty to give back before they settle down,’’ said Samantha Wolf, a 23-year-old Boston University graduate serving with City Year in a Mattapan school.
City Year corps member Antonio Gutierrez, 22, graduated last year from Union College in Schenectady, N.Y., and is applying for admission to law schools, but this year he is tutoring and mentoring students at the Blackstone Elementary School in the South End.
“I grew up in similar circumstances,’’ said Gutierrez, who said he was a weak student until enrichment programs changed his academic trajectory (轨迹). Raised by a single mother in low-income housing across the street from City Year’s South End Headquarters, he used to watch the red-jacketed corps members come and go, and decided to become one someday.
小题1:We learn from what Scott Seider says in Paragraph 3 that young people today .
| A．study harder than before |
| B．do more volunteering than ever before |
| C．don’t care much about others |
| D．like to find jobs in their communities |
| A．It helps to find jobs for college students. |
| B．It offers shelters to the homeless people. |
| C．It helps to build schools for poor students. |
| D．It engages young people to teach at high-poverty schools. |
| A．He wants to give back as a volunteer. |
| B．He has always been an excellent student. |
| C．He never expected to become a volunteer. |
| D．He now works as a teacher. |
| A．Volunteering spirit has disappeared |
| B．How to become a college student |
| C．College students learn to give back |
| D．The real life of young adults today |
Administrative assistants welcome students at the beginning of the day and answer a large number of questions. When an assistant remembers a student’s name or even something special about that student, it communicates to him that he is cared for. The assistant can also give that extra encouragement for a student to make better choices, especially when they are visiting the principal’s office.
Cafeteria workers have a short period of time to interact with students, but can make a big difference as well. Beyond meeting nutritional needs, cafeteria workers may also on occasion meet the emotional needs of the students they serve. Students benefit from positive interaction with adults, and cafeteria workers may give that extra bit of encouragement that a child needs.
Custodians (管理人员) are often underappreciated for all that they give to schools. They have to be knowledgeable about everything from cleaning to fixing the most intricate (复杂的) tools. They get to school early in the morning before teachers arrive and lock up late at night after the last student has left from the after-school event. They also make sure teachers are equipped with the necessary items and prepare the rooms so that they are ready for learning. A great custodian also gives that kind word or extra smile to that student who needs it most.
小题1:If an assistant remembers a student’s name, the student will feel that .
| A．he is cared for |
| B．he is special |
| C．he has done something wrong |
| D．he has made progress in study |
| A．It’s enough for them to cook for the students. |
| B．It’s hard for them to interact with the students. |
| C．They can also meet the emotional needs of the students. |
| D．They have the most interaction with students at school. |
| A．custodians play the least important role in a school |
| B．the work of custodians often goes unnoticed |
| C．custodians should be more serious with students |
| D．custodians’ work is always appreciated at school |
| A．Disappointed. | B．Appreciative. |
| C．Dissatisfied. | D．Doubtful. |
“There is a growing population of elderly people, and there are statistics to show that more and more of them are going to live alone in the home,” said Johann Siau, a senior lecturer at the University of Hertfordshire in the U.K., who was leading the InterHome project.
The system was originally designed to provide remote access (远程访问) to a house so owners could be more energy-efficient. In a small type of the system, set-in controller devices connect securely to the Internet. The owner can then monitor them with a cell phone or computer. User feedback helps the system adapt to routines, saving on electricity.
While thinking about responding to user behavior and an increasingly elderly population, the researchers decided to add wristband (手腕带) technology that senses important organs of the body such as body temperature and pulse, Siau said. “If someone were to fall, it would detect the fall and it would immediately start the monitor of the pulse to see if the person has gone into shock (休克),” he said.
The wristband communicates with the home system wirelessly. Data from the band can be securely transmitted to the home network and accessed by authorized users. “We’re working on trying to reduce it to a level where it could potentially be a wrist-sized product,” Siau said.
But he warned that the technology presented new challenges. “When you start using that on a larger scale, you have issues of privacy or security,” he said. Siau said the InterHome home system isn’t intended to invade privacy. “We’re thinking about the elderly people who are living alone with no one looking after them,” he said. “Hopefully this will be able to decrease some concerns and possibly save a few lives.”
小题1:The system was first designed for a house owner to .
| A．keep watch on his house |
| B．keep his house safe |
| C．monitor the elderly people inside |
| D．save electricity |
| A．sense important organs of a person |
| B．keep an old man from falling |
| C．get the medical information of a sick person |
| D．record a person’s daily activities |
| A．more sensitive |
| B．be connected with the Internet |
| C．available for common people |
| D．suitable to wear on the wrist |
| A．The wristband can be large and expensive. |
| B．The wristband will get false information of a person. |
| C．It will not be used in the proper way. |
| D．It will bring inconvenience to the old people. |
Before you think your children’s friends could never lead one another astray (误入歧途的), think again. A child may experience an event that has caused overwhelming stress or may have problems at home or school, which causes negative behavior. Negative influences of a child’s friends can come without warning.
“Parents who ask their children where they are going, who they are going with and request a meeting with their children’s friends and the friends’ parents have already taken the first step,” says Mara Berkley, family therapist and professor at Bristol University in Rhode Island.
Lynn Rexroat of Chillicothe, Illinois, uses this method to keep tabs on her children. “My oldest son knows that in order for him to go anywhere with a friend, especially one I haven’t met before, I have to speak with that friend’s parent to make sure the arrangements are agreeable with us both,” she says. “I don’t interrogate (质问) them by asking about their private life. I just want to know that the parents of the other child know what the boys are planning to do. I feel that by my wanting to know I am protecting my son.”
When a parent suspects that their child is hanging out with “the wrong crowd”, the last thing on their mind should be discipline. Instead, Berkley says a parent should be more interested in finding out the reasons behind the behaviors and the child’s choice to keep company with these types of friends.
小题1:We can infer from the second paragraph that .
| A．two children usually go astray together |
| B．a child can be negatively influenced only when he meets problems |
| C．a child can easily go astray under the influence of a friend |
| D．parents know exactly when a child is negatively influenced |
| A．should track him secretly | B．should not ask him |
| C．can stop him going out | D．do something to interfere |
| A．She questions his son directly. |
| B．She meets his son’s friends herself. |
| C．She makes arrangements with the parents of his son’s friends. |
| D．She communicates with the parents of his son’s friends. |
| A．watch over | B．win over | C．bring back | D．take control of |
最新试题
- 1This was an unforgettable and wonderful experience．It happen
- 2按所给的汉语，用英语完成下列句子。小题1:老师们希望所有的学生对学英语感兴趣。The teachers hope all
- 3—____ can we board our plane?—In twenty minutes. [ ]A. H
- 4下图表明刘邓大军挺进大别山 [ ]A．解放战争正式爆发B．解放战争进入战略决战C．解放战争转入战略进攻D．渡江战
- 5从拉萨到西宁沿途参观访问选用的最好的交通方式是（ ）A．汽车B．火车C．轮船D．飞机
- 6如图甲所示，水平地面上的一物体，受到方向不变的水平推力F的作用，F的大小与时间t关系和物体速度v与时间t的关系如图乙所示
- 7某同学设计用如图所示的球形容器测温度，容器容积为100cm3，它与一根粗细均匀的竖直细长管相连，该同学在细长管上均匀标出
- 8已知等差数列{an}的前n项和为(I)若a1=1，S10= 100，求{an}的通项公式;(II)若 =n2-6n，解关
- 9某生物个体经减数分裂产生的配子种类及其比例是Ab：aB：AB：ab为4：4：1：1。若该生物进行自交，其后代出现纯合子的
- 10下图为北半球某区域图。读图完成下列要求。（1）据图示有关地理要素，结合所学地理知识分析，图幅范围内：①地表高低起伏的总趋
热门考点
- 1“不管是西北风，还是东南风，都是我的歌……”歌词反映了我国气候特点是 [ ]A、气候复杂多样 B、气温年较差大
- 2阅读下列材料：材料一：汉景帝说：农，天下之本也。黄金珠玉，饥不可食，寒不可衣……其令郡国务劝农桑。材料二：夫农，天下之本
- 3直接影响第二次工业革命时期电气技术应用的因素是：A．工业革命后煤炭开采过度，污染太大B．法拉第发现电磁感应现象C．知识经
- 4名人名言是人类思想的精华，智慧的结晶，请列举与下列名言相对应的名人。 （1）如果我看得比别人更远些，那是因为我站在巨人的
- 52010年5月1日上海世博会开幕，萨科齐夫妇成世博会明星，中法关系“寒冬”过后，重修旧好。中法关系变革的决定因素是
- 6某西部山区的某种特产由于运输的原因，长期只能在当地销售．一直以来，当地政府通过投资对该项特产的销售进行扶持，已知：在当地
- 7春秋战国时期诸子百家相互诘难、批驳，某一学派代表人物在批评另一派别时曾提出“……是无君也；……是无父也。无父无君，是禽兽
- 8---Cliff, I lost your bike at school. I suppose I should pay
- 9求函数的值域
- 10用化学符号表示下列意义：(1)2个碳原子_______________；(2)3个二氧化硫分子_____________