题目内容

We live in a sweet world. The average American kid consumes more than 20 teaspoons of sugar per day, and adults eat 50% more sugar today than they did in the 1970s. We all know that too much sugar isn’t good for you. But did we know it could be dangerous? A team of researchers at the University of Utah used mice to conduct a study on the negative effects of sugar. They found it could have serious effects on people’s health.

Sugar is found not only in sweets and candies, but also in many household items like pasta and crackers.

During the 58-week-long study, mice were fed a diet containing 25% more sugar. This percentage equals a healthy human diet along with three cans of soda daily. The team found that these mice were twice as likely to die as mice fed a similar diet without the sugar. Though the mice did not show signs of obesity or high blood pressure, male mice were 26% less territorial and produced 25% fewer offspring than the other mice.

Scientists often use mice for research because they have a similar genetic(基因) structure to humans. “Since most substances that are dangerous in mice are also dangerous in people, it’s likely that those physical problems that cause those mice to have increased deaths also work in people,” says study author James Ruff of the University of Utah. Findings from this study reveal negative effects that are not as noticeable as weight gain or heart problems. Sugar can contribute to long-term changes in the body that can change development and even shorten lives.

Cutting sugar out of the American diet altogether may be difficult. But making the effort to control our nation’s sugar desire will provide for a truly sweeter future.

1.The study conducted by researchers aimed at learning about________

A. the advantages and disadvantages of sugar

B. the negative effects of sugar on people’s health

C. the genetic structure of mice

D. American’s diet

2.According to the study, which of the following statements is wrong?

A. Sugar can even shorten lives.

B. Sugar’s negative effects are not noticeable.

C. Mice are more likely to diet when fed a diet containing 25% more sugar.

D. Eating much more sugar can make mice put on weight and get high blood pressure.

3.From the passage we can infer_______

A. sugar plays a very important role in Americans’ diet

B. kids consume more sugar than adults in America

C. the study on human beings lasted 58 weeks

D. the genetic structure of mice is totally different from that of people

4.What’s the best title of the passage?

A. Living a sweet life

B. Kids consume much more sugar

C. Genetic structure of humans

D. Danger of sugar

1.B

2.D

3.A

4.D

【解析】

试题分析:糖已经成为美国人日常饮食中非常重要的一部分,犹他大学的科学家通过对小白鼠进行的实验研究发现过多的糖分会对人类健康产生不良影响甚至缩短人类寿命,因此呼吁人们控制每日糖分摄取量。

1. team of researchers at the University of Utah used mice to conduct a study on the negative effects of sugar.科学家们用小白鼠做实验,试图找出糖分对人类健康的不良影响。选B。

2. the mice did not show signs of obesity or high blood pressure可以看出,摄入糖分更多的那些小白鼠并没有肥胖症和高血压的症状,选项D错误。

3. average American kid consumes more than 20 teaspoons of sugar per day, and adults eat 50% more sugar today than they did in the 1970s.以及最后一段中Cutting sugar out of the American diet altogether may be difficult.可以看出糖在美国人日常饮食中是很重要的。选A。

4.文主要讲科学家用小白鼠做实验,发现了过多的糖分对人体健康的危害。答案为D。

考点:考查社会科学类阅读

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During the winter of 2002, I had the opportunity to teach tennis in Nevis in the Caribbean Sea. My experience teaching and staying on the island was wonderful, it was also hard work!

After several weeks of teaching, I was for a vacation! I had planned a surfing outing at a surf camp in Panama with my friend Clayton. I to Panama City with my tennis bag and off we went to the remote Bay of Chiriqui.

To get to the camp, we had to load Clayton’s surfboards and my gear (装备)on and off several buses and boats. After eight hours of travel we finally .

The camp was perfect. The rooms were ideal. I rented a board and we had an unbelievable week good waves.

On our trip, we learned that our bus back to Panama City had been delayed. The sun was down on us , and the only was under a canvas canopy(帆布罩蓬), next to the bus terminal attendant’s .

As I walked over to the shade area, a couple of kids started throwing at me. Thinking quickly, I reached into my and opened a can of tennis balls. I the youngsters and gave them the tennis balls. I got them to throw the balls onto the racket throwing rocks at me. They seemed to that.

Then an old boy got interested. He joined the game. he seemed a bit more coordinated (协调的)than the youngsters, I gave him a racket and got him to try to hit the ball onto the catching racket.

Soon, his bus arrived, and he was on his . But the clinic(临场教学) had just . Families from across the streets came over and wanted their tennis lesson, too. The bus terminal attendant __her post and came out for a lesson, too.

In what seemed like no , my bus arrived. Clayton and I made it back to Panama City in time for our connecting flights.

1.A. unless B. but C. because D. so

2.A. guilty B. blessed C. known D. ready

3.A. rode B. drove C. walked D. flew

4.A. hiking B. tennis C. boarding D. swimming

5.A. relaxed B. stopped C. arrived D. united

6.A. admiring B. expecting C. watching D. surfing

7.A. shopping B. field C. return D. business

8.A. cutting B. breaking C. beating D. calming

9.A. station B. shade C. seat D. entrance

10.A. camp B. car C. office D. house

11.A. rackets B. balls C. sticks D. rocks

12.A. bag B. pocket C. can D. suitcase

13.A. approached B. blamed C. passed D. pushed

14.A. except for B. instead of C. by means of D. in case of

15.A. enjoy B. dislike C. worry D. understand

16.A. If B. As C. Though D. After

17.A. side B. phone C. way D. trip

18.A. faded B. changed C. finished D. started

19.A. left B. cleaned C. searched D. protected

20.A. time B. effort C. problem D. opinion

Dear Malia and Sasha,

I know that you've both had a lot of fun these last two years on the campaign trail, going to picnics and parades and state fairs, eating all sorts of junk food your mother and I probably shouldn't have let you have. But I also know that it hasn't always been easy for you and Mom, and that as excited as you both are about that new puppy, it doesn't make up for all the time we've been apart. I know how much I've missed these past two years, and today I want to tell you a little more about why I decided to take our family on this journey.

When I was a young man, I thought life was all about me—about how I'd make my way in the world, become successful, and get the things I want. But then the two of you came into my world with all your curiosity and mischief and those smiles that never fail to fill my heart and light up my day. And suddenly, all my big plans for myself didn't seem so important anymore. I soon found that the greatest joy in my life was the joy I saw in yours. And I realized that my own life wouldn't count for much unless I was able to ensure that you had every opportunity for happiness and fulfillment in yours. In the end, girls, that's why I ran for President: because of what I want for you and for every child in this nation.

I want all our children to go to schools worthy of their potential—schools that challenge them, inspire them, and instill in them a sense of wonder about the world around them. I want them to have the chance to go to college—even if their parents aren't rich. And I want them to get good jobs: jobs that pay well and give them benefits like health care, jobs that let them spend time with their own kids and retire with dignity.

I want us to push the boundaries of discovery so that you'll live to see new technologies and inventions that improve our lives and make our planet cleaner and safer. And I want us to push our own human boundaries to reach beyond the divides of race and region, gender and religion that keep us from seeing the best in each other.

Sometimes we have to send our young men and women into war and other dangerous situations to protect our country—but when we do, I want to make sure that it is only for a very good reason, that we try our best to settle our differences with others peacefully, and that we do everything possible to keep our servicemen and women safe. And I want every child to understand that the blessings these brave Americans fight for are not free—that with the great privilege of being a citizen of this nation comes great responsibility.

That was the lesson your grandmother tried to teach me when I was your age, reading me the opening lines of the Declaration of Independence and telling me about the men and women who marched for equality because they believed those words put to paper two centuries ago should mean something.

She helped me understand that America is great not because it is perfect but because it can always be made better—and that the unfinished work of perfecting our union falls to each of us. It's a charge we pass on to our children, coming closer with each new generation to what we know America should be.

I hope both of you will take up that work, righting the wrongs that you see and working to give others the chances you've had. Not just because you have an obligation to give something back to this country that has given our family so much—although you do have that obligation. But because you have an obligation to yourself. Because it is only when you hitch your wagon to something larger than yourself that you will realize your true potential.

These are the things I want for you—to grow up in a world with no limits on your dreams and no achievements beyond your reach, and to grow into compassionate, committed women who will help build that world. And I want every child to have the same chances to learn and dream and grow and thrive that you girls have. That's why I've taken our family on this great adventure.

I am so proud of both of you. I love you more than you can ever know. And I am grateful every day for your patience, poise, grace, and humor as we prepare to start our new life together in the White House.

Love, Dad

1.Who was most probably the writer?

A. A headmaster managing a primary school.

B. A candidate to run for President of U.S.A.

C. A manager running international business.

D. A commander experiencing a war in a foreign country.

2.What does the underlined word “journey” (Paragraph 1) really mean?

A. a trip to a place of interest

B. a process to bring up their children

C. a campaign to run for the president

D. a visit to their hometown to meet their grandmother

3.What do we know about Malia and Sasha’s grandmother?

A. She had a perfect way to educate children.

B. She encouraged the writer to join the army.

C. She bought a lovely puppy for her grandchildren.

D. She often read the Declaration of Independence to her grandchildren.

4. From the letter we can learn that the writer was ________.

A. kind and hesitant

B. ambitious and considerate

C. selfish but merciful

D. successful but stubborn

5.According to the letter, which of the following is NOT true?

A. The writer and his two daughters had been apart for a long time.

B. The writer hoped that his daughters would live up to his great expectations.

C. The only way to settle the differences in the world is through violence.

D. There still exist some divides of race and region, gender and religion somewhere in the world.

6.What is the writer’s purpose of writing the letter?

A. Encouraging his daughters to run for President in the future.

B. Explaining the whole international situation to his daughters.

C. Educating his daughters how to defend their country.

D. Apologizing to his daughters for his not being able to stay together with them for such a long time.

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