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1、周考卷七 Unit 1 Unit 3 (Book 4)本试卷满分120分；答题时间100分钟。卷.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。AWe 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. W
2、e all know that too much sugar isnt good for you. But did we know it could be toxic? 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 peoples health.Sugar is found not only in sweets and candies
3、, 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 is equivalent to 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
4、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 structure to humans. “Since most
5、 substances that are toxic in mice are also toxic in people, its likely that those underlying physical problems that cause those mice to have increased mortality are at play in people,” says study author James Ruff of the University of Utah. Findings from this study reveal negative effects that are
6、not as detectable as weight gain or heart problems. Sugar can contribute to long-term changes in the body that can alter development and even shorten lives. Cutting sugar out of the American diet altogether may be difficult. But making the effort to control our nations sugar cravings will provide fo
7、r a truly sweeter future.1.The study in the passage aimed at learning about_A. the Americans dietB. the negative effects of sugar on miceC. the advantages and disadvantages of sugarD. the negative effects of sugar on peoples health2.According to the study, which of the following is NOT true?A. Sugar
8、 can shorten lives.B. Sugars negative effects cant be seen easily.C. Eating much more sugar can give mice high blood pressure.D. Mice are likelier to die when having a diet containing 25% more sugar.3.From the last paragraph we can know_.A. its wise for Americans to cut down the amount of sugar in t
9、heir dietB. its easy for Americans to have a truly sweeter futureC. the Americans will make no effort to get a bright futureD. the Americans have controlled their desire for sugar4.Whats the best title of the passage?A. The Genetic Structure of HumansB. Kids Take Much More SugarC. Living a Sweet Lif
10、eD. The Danger of Sugar1. D.细节理解题。根据文章第一段中a study on the negative effects of sugar可知答案为D项。2. C.细节理解题。根据文章第三段Though the mice did not show signs of obesity or high blood pressure可知，老鼠并没有血压增高的迹象。故选C项。其它三个选项均在文中提到。3. A.推理判断题。根据最后一段可知，降低美国人饮食中糖的摄入量也许非常难，但是努力控制这个民族对糖的欲望可以创造一个更加甜美的未来。故选A。4. D.主旨大意题。本文主要通过实
11、验证明过分摄入糖分对人身体有危害，故D项正确。BThe following true story happened to Eckart von Hirschhausen, a German doctor who became a comedian:Many years ago after an unpleasant engagement on a cruise liner （游轮）I visited a zoo. I looked at a penguin on a rock and thought to myself: “You are such a poor creature your w
12、ings are too small, you can not fly and worst of all: The creator didnt even give you knees My mind was made up: poor design!After walking down a little stair way I looked through a glass pane into the pool. Suddenly my penguin jumped into the water and now he was flying Wow! He was in his elementLa
13、ter I did a research: Penguins are ten times more streamlined（流线型的） than a Porsche(保时捷)! With the equal amount energy of one liter fuel they can swim 2500km. Penguins are excellent swimmer and hunter and they enjoy being in the water. They are more advanced than anything built by humans. And I thoug
14、ht: poor design!Like the little penguin needs water to be in his element we all need an environment where we can develop our strengths. This story is in a way a equivalent (相当于的事情) for Eckart von Hirschhausen life itself. He realized that the hospital is not the best environment to develop his perso
15、nal strengths. He jumped into the cold water and changed his environment from the hospital to the stage. Today he is a very successful comedian, speaker and bestseller author.5. Why did Eckart von Hirschhausen think the penguin a poor design?A. Because the penguin was injuredB. Because the penguin l
16、ooked ugly.C. Because the engagement was unpleasant.D. Because the wings of it are too big.6. What does the word “flying” in the Paragraph3 refer to_ A. the penguin flies fast with his small wingsB. the penguin swims too fast in the water.C. the penguin runs too fast on the ice.D. the penguin skis too fast on the snow.7. Whats the authors aim to me
