Unit 2 Healthy eatingⅠ.单项填空
1．Learn to________your knowledge with my experience，and you aresure to succeed.
A．join B．unite C．connect D．combine答案 D
解析 考查动词辨析。join参加；unite联合；connect联系，连接；combine结合。句意为：学会把你的知识与我的经验结合起来，你一定会成功。combine...with...把……和……结合起来。
2．As we all know，everyone has his own________and weaknesses, so weshould learn from each other.
A．strengths B．value C．technique D．energy答案 A
解析 句意为：众所周知，每个人有自己的优缺点，因而我们要相互学习。strength强项，长处，与weakness相对应。value价值；technique技术；energy精力，能量。
3．A good teacher should leave some time for the students to________theknowledge.
A．introduce B．receive C．digest D．accept答案 C
解析 考查动词辨析。句意为：一个好老师应该留些时间让学生消化知识。digest消化；introduce介绍；receive收到；accept接受。4．Who is most likely to________the old lady’s death?A．benefit B．benefit from
C．be beneficial D．be beneficial to答案 B
解析 benefit对……有益；benefit from从……中获益；be beneficial to对……有益，故选B项。
5．Never lie to your friends.Once you lose their trust, it is impossibleto________.
A．win it out B．win it overC．win it back D．win it through答案 C
解析 考查动词短语辨析。win out在竞争中取胜，战胜对方；win over
说服；win through克服障碍。win back赢回，夺回，符合句意。6．—They________have prepared for the meeting more carefully.—But they didn’t.What a pity!A．shouldn’t B．can’tC．may D．ought to答案 D
解析 ought to have done sth.本来应该做某事而没做。句意为：——他们应该更细心地
准备会议的。——可他们没有，太遗憾了。
7．Don’t cheat in the exam—you’ll never________it.A．keep away from B．stay away fromC．get away with D．do away with答案 C
解析 考查动词短语辨析。get away with逃脱处罚，(做坏事)不受惩罚。句意为：考试不要作弊——你绝不会逃脱惩罚的。keep away from远离；stay away from离开；do away with废除。
8．I am heavily________at the moment, but I hope to be out of it when Iget paid.
A．in debt B．in troubleC．of difficulty D．in danger答案 A
解析 考查介词短语辨析。句意为：我现在陷入严重的债务危机中，但是我希望发了工资后会摆脱债务困扰。由后半句的“out of it when I getpaid”可知A项正确。in debt欠债；in trouble陷入困境；in danger陷入危险。
9．If you don’t ________ your smoking，I will ________ your supply.A．cut up；cut down B．cut down；cut offC．cut in；cut off D．cut in；cut up答案 B
解析 句意为：如果你不减少抽烟，我将中断供应。cut down削减；cutoff切断，中断。
10．The director had her assistant ________ some hot dogs for themeeting.
A．picked up B．picks upC．pick up D．picking up答案 C
解析 have sb.do sth.叫某人做某事。句意为：主任让她的助手顺便为会议买了些热狗。
11．Usually there is a speed ________ of 30 km/h in towns or villages.A．level B．standard C．limit D．degree答案 C
解析 句意为：通常在城镇或乡村的时速限制为每小时30公里。a speedlimit时速限制，符合题意。
12．I don’t think you should ________；you are quite slim.A．put on weight B．lose weightC．put weight D．gain weight答案 B
解析 根据空后的“你相当苗条”可知，“你”不应该“减肥”(lose weight)。put on/gain weight表示“增加体重”。
13．You ________ go to the post office.It’s going to rain.A．had better not to B．had not betterC．had better not D．had not better to答案 C
解析 had better的否定形式为had better not。故选C。
14．He went from door to door，________ waste papers and magazines.A．gathering B．gathered C．gather D．being gathered答案 A
解析 考查现在分词短语作伴随状语，又gather与he为主动关系，故选A。
15．—What makes Tom unpopular with his fellows?—________.
A．Tell a lie B．Telling liesC．Told lies D．Telling lie答案 B
解析 考查tell a lie/lies“说谎”；同时telling a lie/lies在句中作主语。16．As is known to all, a________diet can keep your body healthy.A．balance B．balancedC．balancing D．balance of答案 B
解析 balanced为形容词，意为“平衡的”，符合题意。17．________him and then try to copy what he does.A．Mind B．Glance at C．Stare at D．Watch
答案 D
解析 四个选项的英文释义如下：watch: attend carefully to sb. or sb.’saction; stare at:
look fixedly with wide open eyes, as in wonder, fear or deep thought; glanceat: give a rapid
look; mind: take care of or look after。从原句中的try to copy what he does可知应选watch。
18．—Why do you eat so little?
—I’m ________ a diet to reduce some weight on the doctor’s advice.A．in B．on C．with D．under答案 B
解析 此处考查固定搭配，be on a diet在节食。答语句意为：我按医生的建议正在节食以减轻体重。
19．Mr.Smith________his living by teaching ten years ago andhe________greatly from his work.
A．earned；earned B．earned；gainedC．gained；gained D．gained；earned答案 B
解析 句意为：十年前史密斯先生通过教书谋生，他从工作中收获颇多。earn one’s
living谋生；gain在这里是不及物动词，意为“赢得，获得”。
20．It has been announced recently that all the schools________not havethe students attend
school if the students have high temperatures.
A．need B．shall C．could D．ought to答案 B
解析 考查情态动词。句意为：最近宣布，所有的学校不应当让体温高的学生上学。情
态动词shall常在条约、法令、规章等文件中表示义务或规定，一般用于第三人称，意为“应，必须”。Ⅱ.阅读理解A
Over the summer,18yearold Roberto Mancera of Chandler wasn’t lookingforward to dances，football games or even his last year in high school.He
was more excited about building a robot that will compete in the sixthannual FIRST Robotics Competition (FRC)Arizona Regional.
FIRST stands for For Inspiration and Recognition of Science andTechnology，a nonprofit organization that believes the heroes of today’syouth should be engineers，not sports or pop stars.They aim to change theculture by hosting athleticlike competitions for robots，with cheeringfans，mascots(吉祥物) and music.
Mancera and a team of about 14 of his schoolmates will compete this yearagainst 44 other high school teams from all over Arizona，California andNew Mexico at the Arizona Veterans Memorial Coliseum in Phoenix.Finalistswill move on to the FRC 2009 Championship in Atlanta to face teams from48 states and seven other countries.
For the 40 regional events worldwide，a similar “kit(工具包)of parts” isgiven to each of the 1,680 teams from around the globe every January.Therobot functions are different every year，and after a sixweek buildingseason，robots are boxed up and shipped off to the competition’sdestination.
The competition has a minimum $6,000 entrance fee，and students aresponsored and mentored by adult professionals and experts，like computerscience teacher Sam Alexander,39，at Chandler High.“I try to give the kidsthe challenge and they try to figure it out，” he said.“They work through theentire scientific method without me giving them the answers.”
FIRST students are also eligible(有资格的) to apply for $9.7 million in collegescholarships，something that Alexander’s students have taken advantageof.
“You learn skills that your average student isn’t learning，” Mancerasaid.“It’s really amazing，and I’ve been able to meet a lot of interestingpeople.” Mancera said that he found himself when he joined the roboticsteam.He now has a career goal set and has learned valuable leadershipskills.
1．The goal of FIRST is to________.A．help students have a rich summerB．choose heroes for today’s youth
C．develop the interest of young people in sportsD．create a culture of valuing technology答案 D
解析 事实细节题。根据第二段的“They aim to change the culture byhosting athleticlike competitions for robots...”可知答案为D项。2．Each robot made for the competition is________.A．designed for a different functionB．decorated similarlyC．a teammade productD．a copy of famous robots答案 C
解析 推理判断题。根据第三段的“Mancera and a team of about 14 of hisschoolmates...” 可知，参赛机器人是团队制作的产品。
3．Which of the following words has the similar meaning to the underlinedword “mentored” in Para.5?
A．Guided. B．Controlled.C．Judged. D．Replaced.答案 A
解析 猜测词义题。根据第五段中“students are sponsored and...by adultprofessionals and experts”可知专家们赞助并指导参赛学生。4．What’s the influence of FIRST on Roberto Mancera?A．He has been awarded a college scholarship.B．He has become the hero for his classmates.C．It has helped him to decide his future career.
D．It has allowed him to make a lot of friends with the same interest.答案 C
解析 事实细节题。根据最后一段的“He now has a career goal set...”可知答案为C项。
5．The author’s attitude toward FIRST is________.A．supportive B．criticalC．opposing D．objective答案 D
解析 推理判断题。通过全文可知，作者客观地介绍了FIRST这一组织，不带任何感
情色彩，故选D。supportive支持的；critical批判的；opposing反对的。B
Scientists studying the impact of climate change on the Arctic need toconsider ways to reduce their own carbon footprints(碳排放量)，says RyanBrook，a researcher who regularly flies north to study the health of
caribous(驯鹿)．He calls on scientists to show leadership by examining andsharing ways to reduce the impact of working in polar regions.
“The importance of the research is not at question here. It is important toour understanding of and adapting to climate change.But we need to thinkabout better approaches，” says Brook.
“This is an issue for all scientists，though polar researchers often travelparticularly long distances using commercial air travel.We also relyextensively on small aircraft，icebreakers，and snowmobiles，all of whichproduce large amounts of carbon.”
Brook studies the health of caribou herds in Nunavut and NorthwestTerritories.He works with northern wildlife managers.This work typicallytakes him north five or six times per year and when he calculated his owncarbon footprint，he was not happy with the result.
“My research footprints are about the same as the annual footprints of anaverage Toronto resident.Basically，I have two footprints—my ownpersonal life，which is moderate，and my research footprint.”
Climate scientists can rightly argue that Arctic research is a specialized fieldand the community of scientists who travel north is relatively small.Even ifall scientists working in the north reduced their carbon emissions，it wouldnot make a big impact on the global scale.For Brook，it’s the option thatmatters.
There are ways researchers can reduce the amount of carbon they use.Somehelicopters use less fuel than others.Solar and wind power are alternativesto gasfired generators.And while carbon offsets(抵消) don’t reduce theamount of carbon emitted，they are an easy first step.
“There aren’t necessarily any easy answers，but we need to start talkingabout it，”says Brook.“This is particularly important for the next generationof scientists being trained and I hope to see them become leaders in thisissue.”
6．The underlined word “It” in Para.2 refers to________.A．the research of climate change on the ArcticB．the study of the health of caribousC．the impact of working in polar regions
D．the reduction of polar scientists’carbon emissions答案 A
解析 代词指代题。根据“The importance of the research is not at
question here.It is important to our understanding of and adapting toclimate change.”(这项研究的重要性不言而喻。它对我们理解并适应气候变化很重要)可知“It”指：对北极气候变化的研究工作。
7．What did Brook find when he calculated his own carbon footprints?
A．His carbon footprints are more than the annual footprints of a Torontoresident.
B．His personal life footprints are more than the annual footprints of aToronto resident.
C．His research footprints are about the same as his personal life footprints.D．His personal life footprints are more than his research footprints.答案 A
解析 推理判断题。根据第五段的“My research footprints are about thesame as the annual footprints...I have two footprints—my own personallife...and my research footprint.”可知Brook的carbon footprints(personal lifefootprint＋research footprint)比“the annual footprint of an averageToronto resident”多。
8．Brook’s opinion is challenged by the statement that________.A．arctic research is very importantB．the Arctic is a special environment
C．the footprints of Arctic scientists are small
D．Brook’s situation is not a common phenomenon答案 C
解析 事实细节题。根据第六段内容可知：反对者认为即使他们减少了因为研究工作产生的碳，也不会对全球产生什么影响，因为进行北极研究的科学家人数相对较少。
9．We can infer from the last paragraph that________.
A．we should take actions immediately instead of just talking
B．it’s easy to start talking about the problem of carbon emissions
C．it’s necessary now to pay attention to the problem of research footprintsD．the next generation of scientists are more interested in researchfootprints答案 C
解析 推理判断题。根据最后一段的“...but we need to start talking aboutit...”可知答案为C项。
10．What’s the main idea of the text?
A．The importance of arctic research is not at question.
B．Climate change becomes worse because of arctic research.C．Brook suggests ways of reducing the use of carbon.D．Scientists must look at their own carbon footprints.答案 D
解析 主旨大意题。本文主要介绍了一位科学家通过关注自己在北极地区研究时所产生的二氧化碳问题，从而提出了所有的科学家在北极地区工作时，要注意自己产生的碳排放的问题。
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