上海市静安区市北中学2021-2022学年高一英语下学期期中考试试卷(Word版附解析).docx
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1、2021 学年高一第二学期英语学科期中考试试卷Part one: Grammar1. One of the men gave his opinion _ the book said was right.A. that whatB. thatC. whatD. whether【答案】A【解析】【详解】考查同位语从句和主语从句。句意:其中一个人提出了他的意见,认为书中说的是对的。分析句子结构可知,“the book said”是主语从句,从句中缺少宾语,因此主语从句用what引导;“what the book said was right”位于抽象名词opinion后,说明opinion的具体内容
2、,因此是同位语从句,从句中不缺主语或宾语,且句子意思完整,因此同位语从句用that引导,因此空格处是that what。故选A。2. After five hours drive, they reached _ they thought was the place they had been dreaming of.A. thatB. whereC. whichD. what【答案】D【解析】【详解】考查宾语从句。句意:开了几小时的车后,他们来到他们认为是一直梦想的地方。reached是及物动词,后边接的是宾语从句,宾语从句除去插入语they thought后缺主语,所以应选what,表示“的
3、(地方等)”从句中作主语,that引导宾语从句,无词义,不作成分;where“在哪里”,是副词作地点状语;which“哪一个”,作定语。故选D。3. Many experts hold the view_ teacher development is_ the key to better education lies.A. which; whereB. that; in whichC. that; whereD. that; what【答案】C【解析】【详解】考查同位语从句和表语从句。句意:很多专家认为,老师的发展就是更好教育的关键所在。第一空是同位语从句,作view的同位语,对view进行解
4、释说明,从句不缺成分,表达完整的含义,应用从属连词that;第二空是表语从句,从句中缺少lie的状语,应用where。故选C。4. _in the regulations is that you should not tell other people the password of your e-mail account.A. What is requiredB. What requiresC. It is requiredD. It requires【答案】A【解析】【详解】考查主语从句。句意:规定里面要求的是你们不能将邮箱密码告诉别人。regulation 后面的is 是这句话的谓语,所
5、以前面是句子的是主语,主语从句中缺少主语用what连接主语从句,C项没有用被动语态,CD项用的是形式主语it,那么句中多了一个is,故选A.5. The manager has decided to put _ he thinks is energetic, clever, and has a good sense of duty in the position of the leadership of the company.A. those whoB. anyoneC. whomeverD. whoever【答案】D【解析】【详解】考查宾语从句。句意:经理决定让他认为精力充沛、聪明又有责任
6、感的人担任公司的领导。分析句子可知,“ (he thinks) is energetic, clever, and has a good sense of duty”是宾语从句,且引导词在从句中作主语;连接代词whoever引名词性从句,相当于anyone who,在从句中作主语,而连接代词whomever引导名词性从句时,在从句中作宾语。故选A项。6. His promotion was due to_ he had been working hard.A. thatB. whatC. the fact whichD. the fact that【答案】D【解析】【详解】考查同位语从句。句意
7、:他的成功是由于这样的事实,他一直努力工作。分析可知,he had been working hard结构、意思都完整,所以其前应用丛书连词that;“due to”由于,to是介词,介词后不能直接跟that从句,所以此处that引导的从句为解释说明the fact的内容,为同位语从句。故选D。7. Do you know _.A. how many populations there are in the worldB. how much population there is in the worldC. how many the population of the world isD.
8、what the population of the world is【答案】D【解析】【详解】考查主谓一致。句意:你知道世界人口是多少吗?分析句子可知,句中population表示“世界人口”时,指某一国家或地区的人口时,谓语动词要用单数is,且在对人口的数量进行提问时,只能说Whats the population,而不能用how many和how much修饰,因为这里的population相当于the number of people,所以在提问时要使用疑问词what。故选D项。8. The teacher reminded us _ of us left the office las
9、t should turn off the air conditioner and the lights.A. whateverB. whicheverC. whomeverD. whoever【答案】B【解析】【详解】考查主语从句。句意:老师提醒我们,无论谁最后一个离开办公室,都应该关掉空调和灯。remind后是宾语从句,从句中含有一个主语从句,A.whatever无论什么,作主语或宾语;B.whichever“的那个人事物”;C.whomever无论谁,作宾语;D.whoever 无论谁,作主语。whichever of us.“无论我们哪个人”引导主语从句。故选B。9. Air, or_
10、 is called the atmosphere, surrounds the whole world.A. thatB. whichC. whatD. it【答案】C【解析】【详解】考查主语从句。句意:空气,或所谓的大气,包围着整个世界。分析句子结构并根据并列连词or可知,设空处引导主语从句,与Air构成并列关系。连词在从句中作主语,需要使用连接代词what。故选C。10. The place _the bridge is supposed to be built should be _the cross river traffic is the heaviest.A. which;whe
11、reB. at which;whichC. at which;whereD. which;in which【答案】C【解析】【详解】考查定语从句和表语从句。句意:桥梁被建的对方应该是河流交叉的地方。本题第一空定语从句的先行词是the place,关系代词which指代先行词作为介词at的宾语,引导起定语从句at which the bridge is supposed to be built;第二空连接副词where引导表语从句,在句中作地点状语,语义上判断应该使用where表示“在对方”。故C正确。11. _ more countries can use natural energy in
12、the future remains to be seen.A. WhetherB. ThisC. WhoD. If【答案】A【解析】【详解】考查主语从句。句意:未来是否有更多的国家能够使用自然能源还有待观察。remain前是主语从句,根据“remains to be seen.”有待观察可知,前面是“是否做某事”,用whether引导主语从句。This这,是代词;Who谁;If如果,引导状语从句。故选A。12. Why dont you bring _ to his attention that you are too busy to do it?A. thatB. whatC. itD.
13、which【答案】C【解析】【详解】考查it作形式宾语。句意:你为什么不让他知道你是因为太忙而无法做那件事呢?bring后缺宾语,由于宾语太长,为避免头重脚轻,这里用it作形式宾语,而把真正的宾语“that you are too busy to do it?”放在句子后面,故选C。13. _ the fog, we should have reached our school.A. Because ofB. In spite ofC. In case ofD. But for【答案】D【解析】【详解】考查介词短语辨析。句意:要不是大雾,我们本应该到了学校。A.Because of由于,因为;
14、B.In spite of 尽管;C.In case of以防,万一;D.But for 要不是,but for通常用于含蓄条件句中,相当于if条件句的用法,主句中使用虚拟语气。根据后句“we should have reached our school(我们本应该到了学校)”可知,要不是大雾,我们本应该到了学校。故选D。14. Hes working hard for fear that he _.A. should fall behindB. fell behindC. may fall behindD. would fallen behind【答案】A【解析】【详解】考查虚拟语气。句意:
15、他工作很努力,惟恐落后。在由“for fear that”引导的从句中,从句用“should+动词原形”。故选A项。15. He looked as if he _ ill for a long time.A. wasB. wereC. has beenD. had been【答案】D【解析】【详解】考查虚拟语气。句意:他看上去好像病了很长时间。根据句意及句中的looked可知,此处描述的是与过去事实相反的情况,应使用过去完成时。故选D项。16. Had you listened to the doctor, you _ all right now.A. areB. wereC. would
16、have beenD. would be【答案】D【解析】【详解】考查if引导的虚拟语气。句意:如果你听了医生的话,你现在就好了。此处是省略if的混合条件句,从句与过去的事实相反,主句与现在的事实相反,从句:If+主语+had+done主句,主语+ should/would/might/could+do。故选D。【点睛】If引导虚拟语气:1.表示与现在事实相反的情况从句:If+主语+动词一般过去时(Be动词用were)主句:主语+ should/would/might/could+do:If I were you,I would take an umbrella.如果我是你,我会带把伞。(事实
17、:我不可能是你)2.表示与过去事实相反的情况从句:If+主语+had+done主句:主语+should/would/might/could+have done:If I had got there earlier,I should/would have met her.如果我早到那儿,我就会见到她。(事实:去晚了)3.表示与将来事实相反从句:if+主语+were to doif+主语+should+doif+主语+动词一般过去式(be动词用were)主句:主语+should/would/might/could+do:If he should come here tomorrow,I would
18、 talk to him.如果他明天来这儿的话,我就跟他谈谈。(事实:来的可能性很小,不可能)17. If only he_ quietly as the doctor instructed, he would not suffer so much now.A. liesB. layC. had lainD. should lie【答案】C【解析】【详解】考查虚拟语气。句意:如果他按照医生的指示安静地躺着,他现在就不会那么痛苦了。分析句子可知,“If only he_ quietly as the doctor instructed”为与过去事实相反的假设,应用虚拟语气,从句谓语动词为“had
19、+动词过去分词”,“lie”意为“躺”,动词词性,过去分词为“lain”,故空格处应填“had lain”。故选C项。18. Where have you been?I got caught in traffic; otherwise _ sooner.A. I would be hereB. I have been hereC. I had been hereD. I would have been here【答案】D【解析】【详解】考查含蓄条件句和虚拟语气。句意:你上哪儿去了?我遇上了交通堵塞;否则我早就来了。结合句意可知,“otherwise”相当于一个含蓄条件句,意思是“如果我没有遇上
20、交通堵塞”,是对过去事实的假设,主句中应用虚拟语气,谓语动词应用“should/would/could/might+have+过去分词”。故选D项。19. I do not have a job. I would find one but I_ no time.A. hadB. didnt haveC. had hadD. have【答案】D【解析】【详解】考查时态和主谓一致。句意:我没有工作。我会找一个,但我没有时间。由“I do not have a job”是一般现在时可知,说话人是现在没有工作,空格处描述现在的事情,因此时态用一般现在时,表示现在没有时间,主语I是第一人称,因此空格处是
21、动词原形,故选D。20. The workers requested that their working conditions_.A. must be improvedB. be improvedC. would be improvedD. were improved【答案】B【解析】【详解】考查虚拟语气。句意:工人们要求改善他们的工作条件。根据题干中的requested可知,表示建议、要求等动词后的宾语从句中应该用虚拟语气,所以此处应该用should+动词原形,should可以省略,再分析句意应该用被动语态,所以用should be improved且should可以省略。故选B项。21.
22、 _ will China be the first to use nuclear weapons.A. At the same timeB. At no timeC. At a timeD. At that time【答案】B【解析】【详解】考查介词短语和部分倒装。句意:中国决不首先使用核武器。A. At the same time同时;B. At no time决不;C. At a time一次;D. At that time在那时。表示否定意义的副词、介词短语和连词放在句首时要部分倒装。此类副词或连词主要有no, not, never, seldom, little, hardly, a
23、t no time, in no way, not onlybut also, hardlywhen, no soonerthan, not until等;分析句子可知,句中将助动词will置于主语China之前,使用了部分倒装,结合选项可推知,应填入表示否定的介词短语at no time,意为“决不”。故选B项。22. Nowhere else along the coast _ such shallow water so far from land.A. is thereB. there isC. it isD. is it【答案】A【解析】【详解】考查倒装句。句意:海岸上没有其他地方离陆
24、地如此之远的浅水区。根据句意, 此处表达“有”, 用there be结构。nowhere表否定,位于句首用部分倒装。故选A项。23. -“You ought to have given them some advice.”- “_, but who cared what I said?”A. So ought IB. So I oughtC. So I haveD. So I did【答案】D【解析】【详解】考查固定结构。句意:你本应该向他们征求意见的。的确如此。但是谁会在乎我的要求呢?固定结构:so+同一主语+助动词/情态动词/be动词;说明上文的情况属实;意为:的确如此。结合句意,此处表示
25、我给他们建议了。故D正确。24. _, he knows a lot of things.A. A child as he isB. Child as he isC. A child as is heD. Child as is he【答案】B【解析】【详解】考查让步状语从句和倒装。句意:虽然他是个孩子,但他知道很多事情。as引导的让步状语从句需以部分倒装的形式出现,被倒装的部分可以是表语、状语或动词原形,且倒装时如若有带冠词的名词,冠词需要省去;结合选项,分析句子可知,句中使用了as引导的让步状语从句,应使用部分倒装,将作表语的名词child置于as之前,且省略冠词a。故选B项。25. So
26、 little_ with each other that the neighbouring countries could not settle their differences.A. they agreedB. agreed theyC. did they agreeD. they did agree【答案】C【解析】【详解】考查部分倒装。句意:他们彼此意见不一致,以至于邻国无法解决他们分歧。在sothat句式中,如果so位于句首,主句中的主语和谓语需部分倒装。结合选项,分析句子可知,句中使用了sothat句型,且so little置于句首,所以其后主句使用部分倒装,将助动词did置于主
27、语they之前。故选C项。26. _ can you expect to get a pay rise.A. With hard workB. Although work hardC. Only with hard workD. Now that he works hard【答案】C【解析】【详解】考查倒装句。句意:只有努力工作,你才能期望得到加薪。A.With hard work通过努力工作;B.Although work hard尽管努力工作;C.Only with hard work只有努力工作;D.Now that he works hard既然他工作努力。题干中是“Only+状语(从
28、句)”放在句首,(主句)句中用部分倒装语序,题干中助动词can位于主语you前,是部分倒装,故选C。27. The bus hit against a tree in the fog and _to the deep valley,with ten passengers killed and twenty wounded.A. down did it rollB. down rolled itC. it down rolledD. down it rolled【答案】D【解析】【详解】考查倒装句。句意:公共汽车在大雾中撞到树上,滚到山谷里,10人死亡20人受伤。方位副词down放在句首的时候,
29、而且主语是名词的时候,要用完全倒装,把谓语提到主语前面,但这道题,的主语是it,所以down提到句首,后面不用倒装,故选D。28. Man may disappear_ other creatures who became too specialized to survive their environment.A. asB. just asC. as ifD. as have【答案】D【解析】【详解】考查倒装语序。句意:人们可能会像其他太依赖于在它们自己的环境存活的生物一样消失。这里as引导方式状语从句,从句结构不完整,主语是other creatures(其它生物),后面的定语从句是修饰主
30、语的,other creatures缺失谓语动词,那么这里用到的就是倒装。正常语序应该是Other creatures who became too specialized to survive their environment have disappeared。(其他太依赖于在它们自己的环境存活的生物已经消失了。),这里把have提前,因为和前面的句子有同样的谓语动词,所以进行了省略,避免重复,故选D。Part two : vocabularyDirections: Complete the following passage by using the words in the box.
31、Each word can only be used once. Note that there is one word more than you need.A. suitable B. unfortunately C. worsen D. afford E. risk F. expensiveG. ideally H. provide I. solution J. remain K. concernIn recent weeks, many parents have realized the difficult truth about school this fall because of
32、 COVID-19. Hoping for a better _29_, parents around U.S. have started organizing “pandemic (流行病) pods”, or home schooling pods, for the fall, in which groups of 3 to 10 students learn together in homes under the guidance of the childrens parents or a hired teacher.For parents who can organize and _3
33、0_ them, pods seem like an easy choice. “I dont believe that the online courses for that age group are _31_. Kids at this age really need that multimodal sensory learning (多模式感官学习).” one parent said.These pods could _32_ families with a schooling choice that feels safeyet also allows kids to have fu
34、n and build social skills. However, it also has unavoidable shortcomings.Depending on how the pods are set up, they may offer parents break. But given that pods can be _33_, complicated to organize and self-selecting, it is possible that they are most popular among wealthy families, experts say, and
35、 may _34_ educational inequality.Another _35_ about pods is that families may not know how to minimize Covid risks. Pods shouldnt have more than five kids _36_, said Saskia Popescu, an infection prevention expert. When you add together the teacher and all of the kids family members, a seemingly smal
36、l pod ends up including dozens of people, and the more people in it, the greater the _37_ for coronavirus exposure (接触). Furthermore, families in learning pods shouldnt socialize with people outside the pod unless they wear masks and _38_ socially distant, Dr. Popescu said. Pods should have clear ru
37、les on wearing masks and washing hands.【答案】29. I. solution 30. D. afford 31. A. suitable 32. H. provide 33. F. expensive 34. C. worsen 35. K. concern 36. G. ideally 37. E. risk 38. J. remain【解析】【分析】这是一篇说明文。文章介绍了新冠肺炎流行期间,一些家长建立学习小组,组织孩子在家接受教育。同时这种模式也带来了一些问题。【29题详解】考查名词。句意:为了找到一个更好的解决办法,美国各地的家长们已经开始建立
38、学习小组,为秋季做准备。在小屋里,让3到10个学生在孩子的父母或者雇佣的老师的指导下在家里一起学习。根据空格前的不定冠词a,可知此处为名词,根据“parents around U.S. have started organizing “pandemic (流行病) pods”, or home schooling pods”可知,为了找到一个更好的解决办法,美国各地的家长们已经开始组织“流行病小屋”,或者家庭教育小屋,所以此处表达solution“方法”为可数名词,a better solution作介词for的宾语。故填I项。【30题详解】考查动词。句意:对于那些能够组织起来并负担得起的父母
39、来说,学习小组似乎是一个简单的选择。分析句子可知,空格处和organize并列,需填动词,afford“负担得起”为动词,符合句意。故选D项。【31题详解】考查形容词。句意:我认为网络课程对这个年龄组的孩子是不合适的。分析句子可知,空格处为动词be的表语,根据“Kids at this age really need that multimodal sensory learning (多模式感官学习).” one parent said.”可知,网络课程对这个年龄组的孩子是不合适的。所以此处用suitable“合适的”为形容词,作表语。故选A项。32题详解】考查动词。句意:这些学习小组可以为家
40、庭提供安全的教育选择同时也让孩子们玩得开心,培养社交技能。情态动词could后接动词原形,provide“提供”为动词,provide sb with sth,提供给某人某物,和could一起构成复合谓语,符合句意。故选H项。【33题详解】考查形容词。句意:但专家表示,考虑到学习小组教育的昂贵、组织和自选过程复杂,它们可能在富裕家庭中最受欢迎,并可能加剧教育不平等。动词be后需要接表语,expensive“昂贵的”为形容词,作表语,符合句意。故选F项。【34题详解】考查动词。句意:同5题。情态动词may后需要接动词原形,根据“it is possible that they are most
41、popular among wealthy families, ”可知,加剧了教育的不平等。所以worsen“使更糟糕”为动词,和may一起构成复合谓语,符合句意。故选C项。【35题详解】考查名词。句意:关于学习小组教育的另一个担忧是,家庭可能不知道如何最小化新冠肺炎的风险。another“又一;另一”此处为形容词,后面需要接名词,concern “担忧”为名词,符合句意。故选K项。【36题详解】考查副词。句意:传染病预防专家Saskia Popescu,说,小屋最好不要超过五个孩子。ideally“理想地;最好地”为副词,修饰整句,符合句意。故选G项。【37题详解】考查名词。句意:当你把老师
42、和所有孩子的家庭成员加在一起,一个看起来很小的学习小组最终包含了几十个人,而且里面的人越多,感染冠状病毒的风险就越大。根据定冠词the可知空格处为名词,根据“the more people in it”可知,越多,感染冠状病毒的风险就越大。risk“风险”为名词,符合句意。故选E项。【38题详解】考查动词。句意:此外,Dr. Popescu说,在学习小组的家庭不应该与屋外的人交往,除非他们戴上面具,并保持社交距离。根据连词and可知空格处与前文wear masks并列,应填动词。remain“保持”为系动词,remain socially distant意为“保持社交距离”,符合句意。故选J项
43、。III. Reading ComprehensionSection ADirections: For each blank in the following passage there are four words or phrases marked A, B, C and D. Fill in each blank with the word or phrase that best fits the context.In 1965, 17-year-old high school student Randy Gardner stayed awake for 264 hours to see
44、 how hed cope without sleep. On the second day, his eyes stopped focusing. Next, he lost the ability to _39_ objects by touch. By day three, Gardner was moody and uncoordinated. At the end of the experiment, he was _40_ to concentrate, had trouble with short-term memory and started hallucinating(出现幻
45、觉). Although Gardner recovered without long-term psychological or physical _41_, for others, sleeplessness can result in hormone(激素) imbalance, illness, and even death.Sleep is _42_. Adults need 7 to 8 hours of sleep at night, and adolescents need about 10. In the United States, its estimated that 3
46、0% of adults and 66% of adolescents are _43_ sleep deprived. When we lose sleep, learning, memory, mood, and reaction time are affected. Sleeplessness may also cause inflammation, hallucinations, high blood pressure, and its even been _44_ to diabetes and obesity.How can sleep _45_ cause such enormo
47、us suffering? Scientists think the answer lies with the _46_ of waste products in the brain. During our waking hours, our cells are busy using up our days energy sources with get broken down into various by-products, including adenosine(腺苷酸). As adenosine builds up, it increases the _47_ to sleep, a
48、lso known as sleep pressure. In fact, caffeine works by _48_ adenosines receptor pathways. Other waste products also build up in the brain, and if theyre not cleared away, they collectively _49_ the brain and are thought to lead to the many negative symptoms of sleep deprivation.So, whats happening
49、in our brain when we sleep, to prevent this? Scientists found something called the Lymphatic System, a clean-up mechanism(机能) that removes this build up and is much more _50_ when were asleep. It works by using cerebrospinal fluid(脑脊髓液) to flush away toxic by-products that accumulate between cells.
50、Lymphatic vessels, which _51_ pathways for immune cells have recently been discovered in the brain, and they may also play a role in _52_ the brains daily waste products. While scientists continue exploring the restorative mechanisms behind sleep, we can be sure that sleeping is a(n) _53_ if we want
51、 to maintain our health and our sanity.39. A. produceB. identifyC. moveD. discover40. A. balancingB. remindedC. strugglingD. intended41. A. abilityB. outcomeC. responseD. damage42. A. essentialB. healthyC. investigatedD. neglected43. A. scarcelyB. temporarilyC. regularlyD. hopefully44. A. occurredB.
52、 linkedC. increasedD. developed45. A. deprivationB. sufficiencyC. absenceD. pressure46. A. accumulationB. discoveryC. resourceD. prevention47. A. symptomB. powerC. difficultyD. urge48. A. clearingB. blockingC. holdingD. assisting49. A. overloadB. polluteC. protectD. explore50. A. harmfulB. activeC.
53、tenseD. necessary51. A. serve asB. block upC. tear downD. point to52. A. analyzingB. removingC. followingD. dividing53. A. systemB. priorityC. opportunityD. necessity【答案】39. B 40. C 41. D 42. A 43. C 44. B 45. A 46. A 47. D 48. B 49. A 50. B 51. A 52. B 53. D【解析】【分析】本文是一篇说明文,介绍睡眠不足会严重危害身体及其原因。【39题详解
54、】考查动词词义辨析。句意:接下来,他失去了通过触摸识别物体的能力。A. produce生产;B. identify识别;C. move移动;D. discover发现。根据空后的“objects by touch”可知,他失去了通过触摸来识别物体的能力,故B项正确。【40题详解】考查动词词义辨析。句意:实验结束时,他很难集中注意力,短期记忆出现问题,开始产生幻觉。A. balancing平衡;B. reminded提醒;C. struggling费力、挣扎;D. intended打算。空后说他短期记忆出现问题,并且开始出现幻觉,因此此处说他很难集中注意力,故C项正确。【41题详解】考查名词词义
55、辨析。句意:虽然加德纳康复后没有表现出长期的心理或生理损伤,但对其他人来说,失眠会导致荷尔蒙失调、疾病,甚至死亡。A. ability能力;B. outcome结果;C. response反应;D. damage损害。空后说对有些人来说,睡眠不足可能会导致荷尔蒙失调、疾病,并且在极端情况下死亡,再结合表示让步的Although可知,加德纳康复后没有表现出长期的心理或生理损伤,故D项正确。【42题详解】考查形容词词义辨析。句意:睡眠是必不可少的。A. essential必不可少的;B. healthy健康的;C. investigated调查的;D. neglected被根据上下文,本句的意思忽
56、视的。空后说成年人晚上需要7到8小时的睡眠,而青少年则需要10个小时左右的睡眠,因此睡眠是必不可少的,故A项正确。【43题详解】考查副词词义辨析。句意:在美国,据统计,30的成人和66的青少年经常睡眠不足。A. scarcely几乎不;B. temporarily临时地;C. regularly有规律地、经常地;D. hopefully有希望地。本文主要讨论的就是睡眠不足问题,睡眠不足已经成为一种普遍现象,因此此处是说30的成人和66的青少年经常睡眠不足,故C项正确。【44题详解】考查动词词义辨析。句意:失眠也可引起炎症、幻觉、高血压,它甚至被认为与糖尿病和肥胖症有关。A. occurred发
57、生;B. linked联系;C. increased增加;D. developed发展。根据常识可知,失眠与糖尿病和肥胖症有关,故B项正确。【45题详解】考查名词词义辨析。句意:睡眠不足为何能引起如此巨大的痛苦?A. deprivation匮乏;B. sufficiency充足;C. absence缺席;D. pressure压力。本文主要介绍的就是睡眠不足的危害,因此此处指“睡眠不足”,故A项正确。【46题详解】考查名词词义辨析。句意:科学家认为,答案在于大脑中废物的积聚。A. accumulation累积、积聚;B. discovery发现;C. resource资源;D. prevent
58、ion预防。下文说其他废物也在脑中积聚,如果不将其清理掉而共同使大脑超负荷,这被认为是导致睡眠不足的诸多不良症状的原因因,此科学家认为答案在于大脑中废物的积聚,故A项正确。【47题详解】考查名词词义辨析。句意:随着腺苷的积聚,它增加了睡眠的冲动,也被称为睡眠压力。A. symptom症状;B. power力量;C. difficulty困难;D. urge冲动、强烈的欲望。根据空后的“to sleep, also known as sleep pressure.”可知,腺苷的积聚增加了睡眠的冲动,这种冲动也被称为睡眠压力,故D项正确。【48题详解】考查动词词义辨析。句意:事实上,咖啡因通过阻断
59、腺苷的受体途径起作用。A. clearing清除;B. blocking阻碍、阻断;C. holding保持;D. assisting帮助。上文说腺苷的积聚增加了冲动睡眠的冲动,因此咖啡因是通过阻断腺苷的受体途径来起到提神的作用,故B项正确。【49题详解】考查动词词义辨析。句意:其他废物也在脑中积聚,如果不将其清理掉而共同使大脑超负荷,这被认为是导致睡眠不足的诸多不良症状的原因。A. overload使负担过重、超负荷;B. pollute污染;C. protect保护;D. explore探索。这么多的废物在在脑中积聚,得不到清理的话会让大脑超负荷,故A项正确。【50题详解】考查形容词词义辨
60、析。句意:科学家发现淋巴系统,一个清理机制,能消除这种堆积并且当我们睡着时更加活跃。A. harmful有害的;B. active活跃的;C. tense紧张的;D. necessary必要的。根据空前的“the Lymphatic System, a clean-up mechanism(机能) that removes this build up and is much”可知, 这个能清除废物堆积的清理机制在我们睡着的时候更加活跃,故B项正确。【51题详解】考查动词短语词义辨析。句意:最近发现淋巴管,作为免疫细胞的通路,也可能在清除大脑日常废物方面发挥作用。A. serve as充当、起的
61、作用;B. block up阻碍;C. tear down拆除;D. point to指向。根据空后的“pathways for immune cells”可知,淋巴管充当免疫细胞的通路,故A项正确。【52题详解】考查动词词义辨析。句意同上。A. analyzing分析;B. removing清除;C. following跟随;D. dividing分开。空前说淋巴管充当免疫细胞的通路,它们也可能清理出大脑的日常废物,故B项正确。【53题详解】考查名词词义辨析。句意:尽管科学家还在继续探索人睡着后的修复机制,我们可以肯定的是如果我们要保持健康的身心,良好的睡眠是非常必要的。A. system系
62、统;B. priority优先;C. opportunity机会;D. necessity必要。根据常识可知,良好的睡眠对保持身心健康是非常必要的,故D项正确。【点睛】本篇第10空难度较大,对上文的理解是关键,根据上文中的“As adenosine builds up, it increases the _9_ to sleep, also known as sleep pressure.”可知,随着腺苷的积聚,它增加了睡眠的冲动,也被称为睡眠压力,因此咖啡因是通过阻断腺苷的受体途径来起到提神作用的,故B项blocking正确。Section BDirections: Read the fol
63、lowing three passages. Each passage is followed by several questions or unfinished statements. For each of them there are four choices marked A, B, C and D. Choose the one that fits best according to the information given in the passage you have just read.APaul received a car from his brother as a C
64、hristmas present. On Christmas Eve when Paul came out of his office, a boy was walking around the shiny new car, admiring it.“Is this your car, mister?” he said.Paul nodded. “My brother gave it to me for Christmas.” The boy was astounded. “You mean your brother gave it to you and it didnt cost you a
65、nything? Oh, I wish”He hesitated.Of course Paul knew what he was going to wish for He was going to wish he had a brother like that. But what the boy said shocked Paul all the way down to his heels.“I wish.” the boy went on, “that I could be a brother like that.”Paul looked at the boy in astonishment
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鄂教版七年级语文下册第8课《诗两首》精题精练.doc
