大学英语预备级1习题1（精编版）

1、大学英语预备级1 习题 1LT习题1Part I. Vocabulary and GrammarDirections:Foreachofthefollowing7incompletesentences,thereare4 choices marked A, B, C and D. Choose the ONE answer that best completesthe sentence.1. We have to stop talking here outside. Listen, !Hurry up, or we ll be late.A. There goes the bellB. The

2、re does the bell goC. There the bell goesD. Goes the bell there2. I think this is the first time that we have met. anywhere.A. Before have we never seen each otherB. Never before we have seen each otherC. Each other have we seen never beforeD. Never before have we seen each other3. Little Tom is an

3、orphan. , he has to make a living by himself.A. A child as he isB. Child as he isC. Child as is heD.A child though he is4. that we couldn t catch up with him.A. So fast he ranB. So fast did he runC. So fast ran heD. Such fast did he run5. She didn t come to the party last Sunday. , she must have mad

4、e theparty more exciting.A. If she cameB. Would she comeC. Had she comeD. Did she come6. They finally managed to climb to the top, but then.A. went the children down the hillB. down the hill did the children goC. down the hill went the childrenD. down the hill the children went7. We have been on dut

5、y for four hours and .A. now comes your turnB. now does your turn comeC. now your turn comesD. comes now your turn8. He speaks Chinese as fluently as if he a Chinese.A. wereB. had beenC. isD. has been9. It is time that the government measures to protect the rare birds andanimals.A. takesB. tookC. ha

6、s takenD. taking10. All these dictionaries are a great help to you, ?A. are n t theyB. are theyC. are all these dictionariesD. Americans concentrate solely on intellectual achievement3. Thereasonwhyextracurricularactivitiesareimportantisprobablythat .A.socialandpoliticalskillsandcertainpersonalityar

7、eimportanttosuccess in later life.B. sports scholarships are important in AmericaC. education should be funD. everyone should know something about politics4. What does“ climbing the educational ladder” mean? A. Getting good high school grades.B. Developing your academic education step by step.C. Par

8、ticipating in extracurricular activities.D. Running for president of the class.5. A suitable title would be .A. American School SystemB. Student GovernmentC. Just Studying Isn t Always the Way to SuccessD. Developing leadership and competitive skillsPassage 2Spending 50 minutes with a cell phone clo

9、se to your ear is enough tochange brain cell activity in the part of the brain closest to the antenna (天线).But whether that causes any harm is not clear, scientists at the National Institute of Health said at a conference last month, adding that the study will not likely settle concerns of a link be

10、tween cell phones and brain cancer.“ Waht we showed is glucose (葡萄糖) metabolism( 代谢)(a sign of brain activity) increases in the brain in people who were exposed to a cell phone in the area closest to the antenna,” said Dr. Nora Volkow of the NIH, whose study was published in the Journal of the Ameri

11、can Medical Association. The study was meant to examine how the brain reacts to electromagnetic fields caused bywireless phone signals.Volkow said she was surprised that the weak electromagnetic radiation(电磁辐射) from cell phones could affect brain activity, but she said the findings donot shed any li

12、ght on whether cell phones cause cancer.“ This study does notin any way indicate that. What the study does is to show the human brain is sensitive to electromagnetic radiation from cell phone exposures.” Use of the devices has increased dramatically since they were introduced in the early1980s, with

13、 about 5 billion cell phones now in use worldwide.Some studies have linked cell phone exposure to an increased risk of brain cancers, but a large study by the World Health Organization did not offera clear answer to this. Volkow s team studied 47 people who had their brain examined while a cell phon

14、e was turned on for 50 minutes and another whilethe phone was turned off. While there was no complete change in brain metabolism, they found a 7 percent increase in brain metabolism in the regionclosest to the cell phone antenna when the phone was on.Experts said the results were interesting, but ur

15、ged that they be understood with great care.“ Althougbhiotlhoegical significance, if any, of increased glucose metabolism from too much cell phone exposure is unknown,the results require further investigation,” Henry Lai of the University of Washington in the U.S. and Dr. Lennart Hardell of Universi

16、ty Hospital inSweden, wrote in an article in JAMA.“ Much has to be done to further investigate and understand these effects.” They wrote.6. According to the passage, which of the following is TRUE? A. Cell phone use is dangerous.B. Cell phone use causes cancer.C. The human brain is an electromagneti

17、c field.D. There are about 5 billion cell phone users in the world right now.7. Doctor Volkow was astonished because .A. her research has shed light on her understanding of cell phoneB. she found that cell phone exposure is harmful to human brainC. she found that using a cell phone for about 50 minu

18、tes could influence or change brainactivityD. human brain is not responsive to electromagnetic radiation8. According to the passage, cell phones were launched .A. in the late 1970sB. between 1980 and 1985C. in the late 1980sD. in the early 1990s9. What does the word“ that ” stand for in the second p

19、aragraph? A. Brain activityB. Her research findingsC. The fact that cell phone use may cause cancerD. Her research progress10. Which of the following is an appropriate title for this passage? A. Cell Phone Radiation: Is It Harmful?B. Cell Phone Radiati0n: Is It Useful?C. Cell Phone Radiation: Is It

20、Healthy?D. Cell Phone Radiation: Is It Weak?Part III. Translate English into Chinese.Directions: For this part, you are required to translate English into Chinese.Itishardtoimaginehowourforefatherscoulddowithoutsomanyconveniencesthatmoderntechnologyhasbroughtabout.Backthen onlyasmallproportionof the populationenjoyedthe comfortsof life.The majoritydidn etvenhavesufficientfood,notto speako