ESweetpotatoesarefatfree,highi

更新 2022-09-03
科目英语
题型阅读理解
难度较易
浏览 697

E
Sweet potatoes are fat-free, high in fiber and full of the vitamins that research suggests reduce your risk of life-shortening diseases. To stay healthy, we must eat more fruits and vegetables, and sweet potatoes are a great source of beta carotene(胡萝卜素) and other carotenoids(which the body turns into vitamin A). According to a study of the diets of almost 90,000 nurses, eating about one cup a day of fruits and vegetables rich in carotenoids can cut your risk of stroke in half and reduce your risk of heart disease by 22 percent. Other research suggests beta carotene protects against breast, lung and stomach cancers.
Beta carotene is the most famous member of the carotenoids family. In face, a medium-sized sweet potato contains nearly 12mg of beta carotene(anti-aging experts usually suggest 6 to 11 mg per day). Sweet potatoes are also a low-fat source of vitamin E. Research has linked high E diets with a lower risk of heart disease. This vitamin pill in an orange jacket also packs a vitamin C punchit which has more C than apricots (a kind of fruit). Research suggests that vitamin C protects against ailments (小疾) ranging from cataracts(an eye disease) to cancer. In addition, a UCLA (University of California Los Angeles) study linked high vitamin C diets with a longer life. Recent studies have showed that antioxidant Vitamins C, E and beta carotene fight a fierce battle against free radicals (自由基），which cause cell damage and lead to various illness. Therefore, to keep fit, eat more sweet potatoes.
72. According to the text, there exists a lot of ______in sweet potatoes.
A. fiber, beta carotene, other carotenoids, Vitamin E and C
B. beta carotene, other carotenoids, fiber, Vitamin A and E
C. Vitamin A, beta carotene, fiber, Vitamin E and C
D. beta carotene, other carotenoids, Vitamin A and E
73. This text as a whole suggests that eating sweet potatoes can help______.
A. cut your risk of stroke and heart disease
B. protect against breast, lung and stomach cancers
C. protect against ailments ranging from cataracts to cancers
D. you stay healthy and reduce your risk of life-shortening diseases
74. “ This vitamin pill in an orange jacket” in the passage refers to______.
A. sweet potato     B. vitamin C pill
C. vitamin E pill    D. beta carotene
75. The best title of this passage might be______.
A. On sweet potatoes             B. The vitamin superstar
C. Beta carotene and vitamins      D. Diet and disease

登录免费查看答案和解析

相关试题

To be able to motivate oneself, or self-motivate, occurs when a person has the willingness to do something and is internally(内在地) motivated to do it.
Sometimes it’s very difficult to get ourselves moving. The natural tendency is to postpone. Life just seems to get in the way! There is a job to go to, groceries to do, television to watch—whoops! I guess we get pretty good at finding excuses to escape getting started on goals like an exercise routine or reading a new book. The fact is that we are creatures of routine and habit. So what can we do to motivate ourselves to accomplish our goals?
Here are some tips on how to get moving:
Decide what you want. It’s hard to motivate an aimless mind. Set a goal and decide how you are going to go about it. Then break it down into smaller sections so it’s easier to handle and less overwhelming.（势不可挡）
Keep track of your progress. Keep a log or journal where you can measure how much you have accomplished. Looking at it can also motivate you to keep pushing ahead.
Post motivating pictures or slogans within your sight. It is always inspiring to see pictures of people who have accomplished what you’re going for. It makes it attainable and realistic. Likewise, little slogans like “go for it” or “just do it” can give you the little support you need.
Sometimes we forget what we set out to do and a little reminder is all we need to be revitalized (激活) and focus on the end result. If you remind yourself to go for the desired promotion, it will re-establish why you are doing what you’re doing.
Make it a habit. Once you have accomplished your objective, e.g. becoming an early riser, keep it up so that it’s second nature to you and you don’t have to think about it anymore.
64. According to the author, some people fail to achieve their goals because ________.
A. they don’t have enough desire
B. their life is filled with routine work
C. they benefit from the force of habit
D. they naturally put off forming new habits
65. It can be inferred from the underlined sentence that ________.
A. self-motivation needs repeated self-reminding of one’s goal
B. in modern society people tend to become forgetful
C. when we forget our goal, our life becomes meaningless
D. we can achieve our goal only by focusing on the end result
66. To get moving on your goal, you can do the following EXCEPT ________.
A. keep a diary to clearly judge your distance to your goal
B. make self-improvement your second nature
C. forget your aim and revitalize yourself with slogans
D. support yourself by hanging inspiring pictures in your house
67. Which of the following is the best title for the passage?
A. Set Goals in Your Life                             B. Get Yourself Motivated
C. Get into Good Habits                              D. Do Not Postpone

题型：未知
难度：未知

收藏答案/解析

Oprah Winfrey, the queen of American daytime talk TV, is considered one of the most powerful women in the world. Now, after 25 years’ hosting The Oprah Winfrey Show, the star has announced she is calling it quits.
According to the Los Angeles Times, the move “signals the beginning of the decline for the daytime talk show.” More women are working full-time jobs, and people are turning to cable (有线电视) and pre-recorded shows for their entertainment.
It may be that Oprah isn’t quitting so much as moving on. She has created the Oprah Winfrey Network (OWN), and will most likely move her show to the network. If audiences around the world need Oprah, they well know where to look.
Oprah Winfrey was born to a single teenage mother in a small town in rural Mississippi, US. As a child, she lived with poverty and abuse. But she got a job at a local radio station, where her honesty, emotional style won her many fans. She quickly rose through the ranks of radio and television before launching her own production company and starting her own show.
Oprah’s talk show was not the first of its kind, but it quickly became the best and most popular. It made talk shows popular, and others jumped in to start similar shows. But while other talk shows turned ugly, featuring guests who argued and attacked each other with chairs, Oprah rose above the mess.
“Part of her power lies in the fact that her life story resonates (产生共鸣) with her audience, as a kind of version of the American dream,” writes Kevin Connolly, a reporter with the BBC.
She became a star because of the way she opened up about her problems to her audience. She shared her own struggles with relationships and weight. She focused on self-help. Connolly believes “something in her honesty and her sometimes painfully emotional directness struck home with a certain type of American”.
60. Which of the following statements is NOT true?
A. The stop of Oprah’s show reflects the decrease of audience.
B. Oprah hosted her show for about 25 years.
C. American talk show was pioneered by Oprah.
D. Oprah used to be a radio presenter.
61. What does the underlined sentence mean?
A. Oprah could deal with the guests fighting very well.
B. Oprah’s show stood out with her unique style.
C. Oprah turned a deaf ear to other people’s quarrel.
D. Oprah’s fame rose because lots of people watch her show.
62. From Kevin Connolly, we know people like Oprah’s show for all the reasons EXCEPT ________.
A. Oprah always shares people’s life stories in her show
B. the audiences are touched by Oprah’s honesty and frankness
C. Oprah’s life story reflects the truth of American dream
D. some audiences are inspired by Oprah’s show
63. According to the text, Oprah ________.
A. always volunteers to help those who need help
B. has practiced presentational skills since she was young
C. believes that one should rely on himself to solve problems
D. calls on women to work full-time jobs

题型：未知
难度：未知

收藏答案/解析

第三部分阅读理解 (共两节，满分40分)
第一节 (共15小题；每小题2分，满分30分)
阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
Recently, one of my best friends, whom I’ve shared just about everything with since the first day of kindergarten, spent the weekend with me. Since I moved to a new town several years ago, we’ve both always looked forward to the few times a year when we can see each other.
Over the weekend, we spent hours and hours, staying up late into the night, talking about the people she was hanging around with. She started telling me stories about her new boyfriend, about how he experimented with drugs and was into other self-destructive behavior. I was blown away! She told me how she had been lying to her parents about where she was going and even stealing out to see this guy because they didn’t want her around him. No matter how hard I tried to tell her that she deserved better, she didn’t believe me. Her self-respect seemed to have disappeared.
I tried to convince her that she was ruining her future and heading for big trouble. I felt like I was getting nowhere. I just couldn’t believe that she really thought it was acceptable to hang with a bunch of losers, especially her boyfriend.
By the time she left, I was really worried about her and exhausted by the experience. It had been so frustrating, I had come close to telling her several times during the weekend that maybe we had just grown too far apart to continue our friendship，but I didn’t. I put the power of friendship to the final test. We’d been friends for far too long. I had to hope that she valued me enough to know that I was trying to save her from hurting herself. I wanted to believe that our friendship could conquer anything.
A few days later, she called to say that she had thought long and hard about our conversation, and then she told me that she had broken up with her boyfriend. I just listened on the other end of the phone with tears of joy running down my face. It was one of the truly rewarding moments in my life. Never had I been so proud of a friend.
56. In the writer’s opinion, her friend ________.
A. was a girl with no self-respect
B. could find a better boyfriend
C. was brave enough to stick to her own choice
D. didn’t value the writer’s suggestion
57. What did the writer worry about?
A. She would lose the friendship with her.
B. Her friend’s parents would be worried about their daughter.
C. Her friend would get into great trouble with the boy.
D. Her friend’s boyfriend would be in great trouble.
58. We may leam from Paragraph 3 that the writer ________.
A. didn’t want to go anywhere else
B. hated her friend’s hanging with her boyfriend
C. couldn’t believe that her friend’s choice was acceptable
D. doubted that she could in any way help her friend
59. What can be concluded from the passage?
A. Friendship starting from childhood is not reliable.
B. Friendship is a cure for any injury in life.
C. Friendship should be everlasting once begun.
D. Friendship can have magical power in life.

题型：未知
难度：未知

收藏答案/解析

Many people say that the United States is a paradise for the children, a struggling field for the youth and a tomb for the aged. However, the situation is quite different in Australia. Different people have their own ways for enjoyment and their own worlds of pastime.
Most children often work hard in school since they have to face various exams. After school they do not want to confine themselves to books any more. Instead, they put aside their schoolbags at home and sneak quickly to some quiet street comers for their games. Bigger children like to shoulder their large kites to some steep cliffs, and jump to fly in the sky with their kites.
Some old people often get up early in the morning and go to parks to do newspaper reading. After breakfast, they come to horse races, dog races and sometimes car races for betting. If he wins, he will feed himself a good dinner. In the evening, they stay at home, watching TV sometimes with grandchildren. Some of the aged also enjoy fishing and gardening.
Young people prefer to go outing for holidays. At the weekends, they go to the seashore for swimming or to the forest for hunting and camping, or mountainous areas for picnicking. Then in the evenings on Sundays, they start their long bumper-to-bumper drive back on the highways. Nobody seems in a hurry.
The Australian government also encourages its people to have more relaxation after work. Sometimes, certain kind of financial help is distributed to people going on holidays and public holidays are purposely set on Monday or Friday so that Australians may have a longer weekend for enjoyment. They think people can word better only after they get a full relaxation. And it grows out of this idea that relaxation comes the top priority(优先权)for enjoyment in Australia.
60．According to many people’s opinion, which of the following is NOT true?
A．All people in the US live a desirable life.
B．The competition among American young people is fierce.
C．The life of the American old people is very terrible.
D．Children in America are extremely happy.
61．Australia is different from America because Australia_______.
A．is not a paradise for children
B．is not a struggling field for the youth
C．is not a tomb for the aged
D．has different worlds for different people
62．There is an idea of enjoyment priority in Australia because____.
A．enjoyment is more important than other aspects of life
B．a full relaxation will make people work better
C．enjoyment can make people happy
D．Australian people are lazy
63.The underlined part can be replaced by “ ______．
A.adjust themselves to B．prevent themselves form
C．limit themselves to D．satisfy themselves with

题型：未知
难度：未知

收藏答案/解析

At age 61, identical twins Jeanne and Susan no longer look exactly alike. Susan smoked for many years and is an admitted sun worshipper, whose habits Jeanne does not share. A new study of twins suggests you can blame those coarse(粗糙的)wrinkles, brown or pink spots on too much time in the sun, smoking, and being overweight.
Because twins share genes, but may have different exposures to environmental factors studying twins allows an “opportunity to control for genetic susceptibility(易受影响性),” Dr. Elma D. Baron, at Case Western Reserve School of Medicine in Cleveland, Ohio, and his colleagues explain in the latest issue of Archives of Dermatology.
Their analysis of environmental skin-damaging factors in 65 pairs of twins hints that skin aging is related more to environment and lifestyle than genetic factors.
But when it comes to skin cancer, the researchers say their findings support previous reports that both environment and genes affect skin cancer risk.
Baron’s team examined facial skin of 130 twins, 18 to 77 years old, who lived mostly in the northem Midwest and Eastern regions of the US, who were attending the Twins Days Festival in Ohio in August 2002. At this time, each of the twins also separately reported how their skin burned or tanned(晒黑)without sunscreen, their weight, and their history of skin cancer, smoking, and alcohol drinking. The study group consisted of 52 fraternal(异卵双生)and 10 identical twin pairs, plus 3 pairs who were unsure of their twin status.
From these data, the researchers noted strong ties, outside of twin status, between smoking, older age, and being overweight, and having facial skin with evidence of environmental damage. By contrast, sunscreen use and drinking alcohol appeared related to less skin damage.
Baron and his colleagues say the current findings, which highlight ties between facial aging and potentially avoidable environmental factors—such as smoking, being overweight, and unprotected overexposure to the sun’s damaging rays—may help motivate people to minimize these risky behaviors.
67．Which of the following is true according to the passage?
A．Jeanne and Susan share all the habits including smoking.
B．Skin aging is related more to environment and lifestyle than genetic factors.
C．Only identical twins can take part in the research.
D．Sunscreen use cannot help people have less skin damage.
68．Why did Baron’s team do the research on twins?
A．Twins are more likely to suffer from skin cancer.
B．It may guarantee the research is not influenced by genetic factors.
C．It gives others an opportunity to control twins’ genes.
D．It helps find twins are exposed to different environments.
69．What can you infer from the last paragraph?
A．This research makes people aware of dangerous lifestyles.
B．The environmental factors are unavoidable.
C．Being exposed to the sun is absolutely damaging.
D．There is little relationship between skin aging and environment.
70．The passage is mainly concerned with___________
A．skin cancer and environment
B．identical twins research
C．aging skin and environmental factors
D．genes and lifestyles

题型：未知
难度：未知

收藏答案/解析