1、高考资源网（），您身边的高考专家欢迎广大教师踊跃来稿，稿酬丰厚。Unit 21 Human Biology .完形填空Almost everyone wants to get smarter.We struggle to improve our _1_，intelligence andattention.We drink cup after cup of coffee to help us _2_ the day._3_，a new study published in Current Directions in Psychological Science warns thatthere ar
2、e _4_ to how smart humans can get.Each of our body parts develops in a certain way for a reason._5_，we are not 3 meters tall_6_ most peoples hearts are not strong enough to send _7_ up that high.Scientists say thatour thinking ability works in the same way.A babys brain size is limited by a series o
3、f _8_，suchas the size of the mothers pelvis(骨盆)If our brains developed to be bigger，there could be more_9_ during childbirth.The study of Jews，who have an average IQ much _10_ than other Europeans，showed theywere more _11_ to develop diseases of the _12_ system.This might be because of theirincrease
4、d brainpower.If intelligence cannot be improved，can we at least get better at _13_？Not really，sayscientists.They studied _14_ like caffeine(咖啡因)that improve attention.They found the drugsonly helped people with serious _15_ problems.For those who did not have trouble payingattention，the drugs could
5、have the _16_ effect.Scientists say that this suggeststhere is a(n)_17_ limit to how much people can or should concentrate.Our memory is also a“doubleedged sword”People with extremely good memories could_18_ having a difficult life because they cannot _19_ bad things that happen to them.Thomas Hills
6、，one of the authors of the paper，said that _20_ all the problems in trying toget smarter，its unlikely that there will ever be a“super mind”【语篇解读】每个人都想使自己变得更聪明，你是否也在想方设法改善自己的记忆力和注意力呢？1A.abilityBcharacterCmemoryDemotion答案 C 几乎每个人都想变得更聪明。“我们”都想努力提高“我们”的记忆力、智力和注意力。2A.go throughBput throughCget throughDc
7、arry through答案 C 我们一杯接着一杯地喝咖啡来度日。3A.ThoughB ThereforeCHoweverDMeanwhile答案 C 文章第 2 段和第 1 段在意思上为转折关系，故选 however。4A.standardsBmeasuresCrangesDlimits答案 D 然而，一项新研究警告说，人类的聪明程度是有限度的。5A.At firstBIn additionCFor exampleDAbove all答案 C“我们”的身体器官如何发育是有一定道理的，就像我们的身高不会达到 3高考资源网（），您身边的高考专家欢迎广大教师踊跃来稿，稿酬丰厚。米一样。for ex
8、ample 用于举例。6A.untilBbecauseCbeforeDso that答案 B 因为大多数人的心脏不够强。7A.bloodBinformationCbreathDstrength答案 A 不能够将血液输送到那个高度。8A.factorsB reasonsCaspectsDeffects答案 A 婴儿大脑的大小受到一系列因素的限制，例如妈妈骨盆的大小。9A.chancesBdeathsCchoicesDlives答案 B 如果“我们”的大脑发育得更大，在出生时就可能更容易死亡。10A.smarterBbetterClowerDhigher答案 D 犹太人的平均智商比其他欧洲人高出许
9、多。11A.likelyBpossibleCprobableDsure答案 A 对犹太人的研究显示他们更有可能患神经系统疾病。12A.physicalBbodilyCpersonalDnervous答案 D 见上题解析。13A.exercisingBconcentratingCmemorizingDthinking答案 B 根据下一行的 attention 可推断此处指“集中(注意力)”。14A.poisonsBdrinksCplantsDdrugs答案 D 后文多次提到 drugs 一词，由此可知他们研究的是像咖啡因这样的提高注意力的药物。15A.attentionBfamilyChealt
10、hDliving答案 A 他们发现这些药物只能帮助那些注意力有严重问题的人。16A.sameBoppositeCdifferentDsimilar答案 B 对于那些注意力没有问题的人来说，药物会起相反的作用。17A.lowerBsmallerCupperDhigher答案 C 科学家们说，这表明人们的注意力也是有上限的。18A.end upBmake upCstart upD come up答案 A 记忆力也是一把双刃剑。记忆力极好的人最终可能会过着很困扰的生活，因为他们忘不掉发生在他们身上的伤心事。19A.forgetBrememberCperformDshare答案 A 见上题解析。20A
11、.supposingBconcerning CconsideringDregarding 答案 C 考虑到以上所有问题，Thomas Hills 说，拥有“超级大脑”是不太可能的。.阅读理解体裁题材词数难度建议用时议论文社会生活3066 分钟Grownups are often surprised by how well they remember something they learned aschildren but have never practiced ever since.A man who has not had a chance to go swimming for高考资源网
12、（），您身边的高考专家欢迎广大教师踊跃来稿，稿酬丰厚。years can still swim as well as ever when he gets back in the water.He can get on a bicycle aftermany years and still ride away.He can play catch and hit a ball as well as his son.A mother whohas not thought about the words for years can teach her daughter the poem that be
13、gins“Twinkle，twinkle，little star”or remember the story of Cinderella or Goldilocks and the Three Bears.One explanation is the law of overlearning，which can be stated as follows：Once we havelearned something，additional learning trials increase the length of time we will remember it.In childhood we us
14、ually continue to practice such skills as swimming，bicycle riding，andplaying baseball long after we have learned them.We continue to listen to and remind ourselves ofwords such as“Twinkle，twinkle，little star”and childhood tales such as Cinderella andGoldilocks.We not only learn but over learn.The mu
15、ltiplication tables(乘法口诀表)are an exception to the general rule that we forgetrather quickly the things that we learn in school，because they are another of the things weoverlearn in childhood.The law of overlearning explains why cramming(突击学习)for an examination，though itmay result in a passing grade，
16、is not a satisfactory way to learn a college course.By cramming，astudent may learn the subject well enough to get by on the examination，but he is likely soon toforget almost everything he learned.A little overlearning，on the other hand，is really necessary forones future development.【语篇解读】有些东西我们学过之后就
17、永生难忘，而有些东西则恰恰相反。文章解释了原因，称这是过度学习和突击学习两种不同学习方法所导致的结果。1What is the main idea of Paragraph 1?APeople remember well what they learned in childhood.BChildren have a better memory than grownups.CPoem reading is a good way to learn words.DStories for children are easy to remember.答案 A 主旨大意题。根据文章的首句“Grownups
18、 are often surprised by how wellthey remember something they learned as children but have never practiced ever since”可知选 A项。2The author explains the law of overlearning by _Apresenting research findingsBsetting down general rulesCmaking a comparisonDusing examples答案 D 推断题。结合文章内容可以看出作者通过举例子的方法来证明自己的观
19、点，故答案为 D 项。3According to the author，being able to use multiplication tables is_Aa result of overlearningBa special case of crammingCa skill to deal with math problemsDa basic step towards advanced studies答案 A 细节题。根据第 4 段最后一句话中的“.because they are another of the things we overlearn in childhood”可知答案为
20、A 项。4What is the authors opinion on cramming?AIt leads to failure in college exams.高考资源网（），您身边的高考专家欢迎广大教师踊跃来稿，稿酬丰厚。BIts helpful only in a limited way.CIts possible to result in poor memory.DIt increases students learning interest.答案 B 推断题。由最后一段中的“By cramming，a student may learn the subject wellenoug
21、h to get by on the examination，but he is likely soon to forget almost everything he learned”可以看出作者认为突击学习的作用极其有限，往往只是为了应付考试。.书面表达你校校门口在上学和放学时间经常出现交通拥堵的现象，这给全校师生和路人带来极大的不便。为了确保学校门口正常的交通秩序，你校英文报向学生征集解决交通拥堵的良策。假设你是高三学生李华，请你用英语就此事给校报编辑写一封信，信中应包括以下内容：1写信的目的；2分析学校门口拥堵的原因；3提出 23 点建议。注意：词数 100 左右(开头和结尾已经给出，但
22、不计入总词数)。Dear Editor，I am Li Hua，a student from Grade 3.I am writing to discuss the traffic problem near ourschool gate._I do hope there will be fewer traffic jams near our school gate.Yours，Li Hua【参考范文】Dear_Editor，I_am_Li_Hua，a_student_from_Grade_3.I_am_writing_to_discuss_the_traffic_problem_near_ou
23、r_school_gate.With so many parents coming to pick up their children，traffic jams are frequent near theschool gate，which has caused a lot of inconvenience to us.In order to avoid traffic jams，I strongly recommend some effective measures be taken.First，we should encourage students to ride a bicycle or
24、 walk to school instead of taking a car，which notonly avoids traffic jams，but also builds up students health.It is also a good idea to allow juniorstudents to leave school 10 minutes earlier than others，which will surely make the street lesscrowded.Besides，cars should not be allowed to park in front of the school gate.I_do_hope_there_will_be_fewer_traffic_jams_near_our_school_gate.Yours，Li_Hua高考资源网（），您身边的高考专家欢迎广大教师踊跃来稿，稿酬丰厚。
