2017届广东省广州市重点学校高考英语一轮复习检测：1（含解析）

　　高考一轮复习综合检测卷01

　　第一部分　英语知识运用(共两节，满分45分)

　　第一节　单项填空(共15小题；每小题1分，满分15分)

　　从每题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项。

　　1. If you take________ risk of not wearing a seat belt, you are at ________ risk.

　　A. the ；/

　　B. /; /

　　C. /; the

　　D. the ; the

　　2. I began to feel ________ in the new school when I saw some familiar faces.

　　A. at home

　　B. at heart

　　C. at will

　　D. at sight

　　3．—How could you ________ your friend so easily?

　　—She is the kind of person who ________ in a crowd.

　　A．pick out; stands out

　　B．make out; stands for

　　C．take out; stands by

　　D．bring out; stands aside

　　4. Before selecting the curtain for your newly­decorated house，it's important to know what colors look great________the wall paper.

　　A．on

　　B．with

　　C．in

　　D．against

　　5. The doorway is low, so ________ your head when you go in.

　　A. attend

　　B. mind

　　C. protect

　　D. guard

　　6.

　　Now, boys，I'll________the story where I stopped yesterday.

　　A．take up

　　B．take on

　　C．take in

　　D．take over

　　7. —How I wish we studied ________ there are fewer exams!

　　—You're joking!

　　A. where

　　B. in which

　　C. the place where

　　D. in where

　　8. Under such circumstances, it is little ________ that they experience difficulties.

　　A. pity

　　B. shame

　　C. relief

　　D. wonder

　　9. The tall figure that you saw was none ________ our manager.

　　A. rather than

　　B. or rather

　　C. more than

　　D. other than

　　10. —Where are the students? How could they keep us waiting for so long?

　　—They started an hour ago and they________ be here in fifteen minutes, I think.

　　A. can

　　B. would

　　C. should

　　D. must

　　11. —What do you enjoy most ________ in the summer holidays?

　　—Playing table tennis.

　　A. killing time

　　B. to kill time

　　C. spending the time

　　D. to spend the time

　　12. ________is often the case with elder people, my grandma talked about my new hairstyle for at least 30 minutes.

　　A. What

　　B. Which

　　C. As

　　D. It

　　13. Could I speak to ________

　　is in charge of International Sales please?

　　A. who

　　B. what

　　C. whoever

　　D. whatever

　　14. The professor, ________out the project, made a comment on the report.

　　A. was opposed to carry

　　B. opposed to carry

　　C. opposed to carrying

　　D. objected to carrying

　　15．—I'm terribly sorry to have put you through so much trouble.

　　—________. I know you didn't mean to.

　　A. Forget about it

　　B. No trouble

　　C. All right

　　D. You're welcome

　　第二节　完形填空(共20小题；每小题1.5分，满分30分)

　　阅读下面短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。

　　It's no secret that many children would be healthier and happier with adoptive parents than with the parents that nature dealt them. That's especially__16__of children who remain in homes where they're badly treated__17__the law blindly favors biological parents. It's also true of children who__18__for years in foster (寄养) homes because of parents who can't or won't care for them but__19__to give up custody (监护) rights.

　　Fourteen­year­old Kimberly Mays__20__neither description, but her recent court victory could__21__help children who do. Kimberly has been the__22__of an angry custody battle between the man who raised her and her biological parents, with whom she has never lived. A Florida judge__23__that the teenager can remain with the only father she's ever known and that her biological parents have “no legal__24__”on her.

　　Shortly after__25__in December 1978, Kimberly Mays and another baby were mistakenly switched and sent home with the__26__parents. Kimberly's biological parents, Ernest and Regina Twigg, received a child who died of a heart disease in 1988. Medical tests__27__that the child wasn't the Twiggs' own daughter, but Kimberly was, thus leading to a custody__28__with Robert Mays. In 1989, the two families__29__that Mr. Mays would maintain custody with the Twiggs getting__30__rights. Those rights were ended when Mr. Mays decided that Kimberly was being__31__.

　　The decision to__32__Kimberly with Mr. Mays caused heated discussion. But the judge made it clear that Kimberly did have the right to sue (起诉)__33__her own behalf. Thus he made it clear that she was__34__just a personal possession of her parents. Biological parentage does not mean an absolute ownership that cancels(取消) all the__35__of children.

　　16．A.terrible

　　B．sad

　　C．true

　　D．natural

　　17．A.but

　　B．if

　　C．when

　　D．because

　　18．A.settle

　　B．live

　　C．suffer

　　D．gather

　　19．A.have

　　B．refuse

　　C．stick

　　D．fail

　　20．A.likes

　　B．gives

　　C．fits

　　D．knows

　　21．A.actually

　　B．eventuallyC．successfully

　　D．abruptly

　　22．A.victim

　　B．objectC．sacrifice

　　D．teenager

　　23．A.ruled

　　B．believedC．ordered

　　D．indicated

　　24．A.expectation

　　B．actionC．effect

　　D．claim

　　25．A.birth

　　B．judgmentC．operation

　　D．school

　　26．A.biological

　　B．ownC．kind

　　D．wrong

　　27．A.examined

　　B．explainedC．decided

　　D．showed

　　28．A.battle

　　B．rightC．agreement

　　D．decision

　　29.A.thought

　　B．quarreledC．agreed

　　D．prepared

　　30．A.equal

　　B．sameC．visiting

　　D．speaking

　　31．A.harmed

　　B．forbiddenC．wounded

　　D．hidden

　　32．A.make

　　B．leave

　　C．give

　　D．keep

　　33．A.by

　　B．through

　　C．on

　　D．in

　　34．A.more than

　　B．no more thanC．not more than

　　D．less than

　　35．A.freedom

　　B．happinessC．rights

　　D．ideas

　　第二部分　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。

　　A

　　The early 1900s were very different from today.Toys，though they have evolved in many ways，were still the delight of children everywhere.

　　Theodore Roosevelt's Presidency marks the beginning of the “Teddy Bear”. In the year 1902，toy bears were named “Teddy” after the president's nickname.The Teddy Bear became known worldwide，and is still known and loved today.It was only a few years later that the Teddy Bears were mass produced.

　　In 1913，an item called the Erector Set was invented.It was a steel，motorized toy that children could use to build models of anything.Its creator was A．C.Gilbert，a medical doctor.

　　Charles Pajeau created a similar wooden set called Tinker Toys in the year 1914.Tinker Toys were made for younger children.

　　Raggedy Ann dolls first came on the scene after newspaper cartoonist Johnny Gruelle reproduced the doll he made for his daughter.That was in 1915.

　　The following year，an architect's son named John Lloyd Wright，invented Lincoln Logs，which were interlocked to make structures.

　　Two years after Mickey Mouse was created，stuffed(填塞)Mickey Mouse dolls were made by Charlotte Clark.This was the start of Disney merchandise.

　　The yo­yo became popular in the United States after Donald Duncan bought a yo­yo company in 1929.

　　The View­Master，a three dimensional viewer，was developed by a camera enthusiast named William Gruber.The toy became popular when Gruber licensed Disney characters to make still,3­D images from Disney movies and television programs.

　　Finally，in 1940，model airplanes were mass produced.They started out as a way for manufacturers to sell planes to the military，but later caught on as a toy.

　　The toys that we know and love today have had their roots from these ancient times.Isn't it interesting to know that if it hadn't been for all these creative people，most of the games you know today would never have been?

　　36．Why were toy bears named “Teddy”？

　　A．To be suitable for mass production.

　　B．To be easily pronounced by children.

　　C．To meet the advertisers' needs.

　　D．To memorize President Theodore Roosevelt.

　　37．In which aspect do the toys created by Gilbert differ from those by Charles?

　　A．Shape.

　　B．Material used.

　　C．Themes.

　　D．Price.

　　38．When did the View­Master become popular?

　　A．After William Gruber was born.

　　B．After Gruber licensed Disney characters.

　　C．Two years after Mickey Mouse was created.

　　D．When Disney merchandise was started.

　　39．From the last paragraph we can learn that________.

　　A．those people who created these games should never be forgotten

　　B．some toys created in ancient times now disappear

　　C．creativity exists in every field all the time

　　D．toys nowadays are totally different from those in ancient times

　　B

　　“In only six days I lost seven pounds of weight.”

　　“Two full inches in the first three days！”

　　These are the kinds of statements used in magazine，newspaper，radio and television ads，promising new shapes and new looks to those who buy the medicine or the device.The promoters of products say they can shape the legs，slim the face，smooth wrinkles，or in some other way to add to beauty or desirability.

　　Often such products are nothing more than money­making things for their promoters.The results they produce are questionable，and some are dangerous to health.

　　To understand how these products can be legally promoted to the public，it is necessary to understand something of the laws covering their regulation.If the product is a drug，FDA(Food and Drug Administration)can require proof under the Food，Drug，and Cosmetic Act that is safe and effective before it is put on the market.But if the product is a device，FDA has no authority to require premarketing proof of safety or effectiveness.If a product already on the market is a danger to health，FDA can request the producer or distributor to remove it from the market voluntarily，or it can take legal action，including seizure(查封)of the product.

　　One notable case a few years ago involved an electrical device called the Relaxacisor，which had been sold for reducing the waistline.The Relaxacisor produced electrical shocks to the body through contact pads.FDA took legal action against the distributor to stop the sale of the device on the grounds that it was dangerous to health and life.

　　Obviously，most of the devices on the market have never been the subject of court proceedings(法律诉讼)，and new devices appear continually.Before buying，it is up to the consumer to judge the safety or effectiveness of such items.

　　40．It can be inferred that the ads mentioned in the text are________.

　　A．objective

　　B．costly

　　C．unreliable

　　D．illegal

　　41.Which of the following is TRUE according to the text?

　　A．The court is in charge of removing dangerous products.

　　B．New products are more likely to be questionable.

　　C．The production of a device must be approved by FDA.

　　D．The promoters usually just care about profits.

　　42．FDA can ask for the proof of safety and effectiveness of a product________.

　　A．if it is a drug

　　B．if it is a device

　　C．if its consumers make complaints

　　D．if its distributors challenge FDA's authority

　　43．The Relaxacisor is mentioned as________.

　　A．a product which was designed to produce electricity

　　B．a product whose distributor was involved in a legal case

　　C．a successful advertisement of a beauty product

　　D．an example of a quality beauty product

　　C

　　Christopher Thomas, 27, was a writer by night and a teacher by day when he noticed he was always tired and was losing weight fast. Diagnosed with diabetes(糖尿病), Thomas would need to inject himself with insulin(胰岛素) three times a day for the rest of his life or risk nerve damage, blindness, and even death. And if that weren't bad enough, he had no health insurance.

　　After a month of feeling upset, Thomas decided he'd better find a way to fight back. He left Canton, Michigan for New York, got a job waiting tables, nicknamed himself the Diabetic Rockstar, and created diabeticrockstar.com, a free online community for diabetics and their loved ones—a place where over 1,100 people share personal stories, information, and resources.

　　Jason Swencki's son, Kody, was diagnosed with diabetes at six. Father and son visit the online children's forums(论坛) together most evenings. “Kody gets so excited, writing to kids from all over，” says Swencki, one of the site's volunteers. “They know what he's going through, so he doesn't feel alone.”

　　Kody is anything but alone: Diabetes is now the seventh leading cause of death in the United States, with 24 million diagnosed cases. And more people are being diagnosed at younger ages.

　　These days, Thomas's main focus is his charity(慈善机构), Fight It, which provides medicines and supplies to people—225 to date—who can't afford a diabetic's huge expenses. Fight­it.org has raised about $ 23,000—in products and in cash. In May, Thomas will hold the first annual Diabetic Rockstar Festival in the Caribbean.

　　Even with a staff of 22 volunteers, Thomas often devotes up to 50 hours a week to his cause, while still doing his full­time job waiting tables. “Of the diabetes charities out there, most are putting money into finding a cure，” says Bentley Gubar, one of Rockstar's original members. “But Christopher is the only person I know saying people need help now.”

　　44．Which of the following is TRUE of Christopher Thomas?

　　A．He needs to go to the doctor every day.

　　B．He studies the leading cause of diabetes.

　　C．He has a positive attitude to this disease.

　　D．He encourages diabetics by writing articles.

　　45．Diabeticrockstar.com was created for ________.

　　A．diabetics to communicate

　　B．volunteers to find jobs

　　C．children to amuse themselves

　　D．rock stars to share resources

　　46．According to the text, Kody ________.

　　A．feels lonely because of his illness

　　B．benefits from diabeticrockstar.com

　　C．helps create the online kid's forums

　　D．writes children's stories online

　　D

　　Motorists who used to listen to the radio or their favorite tunes on CDs may have a new way to entertain themselves, after engineers in Japan developed a musical road surface.

　　A team from the Hokkaido Industrial Research Institute has built a number of “melody roads”， which use cars as tuning forks(音叉)to play music as they travel.

　　The concept works by using grooves(凹槽)．They are cut at very specific intervals in the road surface. The melody road uses the spaces between to create different notes.

　　Depending on how far apart the grooves are, a car moving over them will produce a series of high or low notes, and designers are able to create a distinct tune.

　　Patent documents for the design describe it as notches(刻痕)“formed in a road surface so as to play a melody without producing simple sound or rhythm and reproduce melody­like tones”．

　　There are three musical strips in central and northern Japan—one of which plays the tune of a Japanese pop song. Reports say the system was invented by Shizuo Shinoda.He scraped some markings into a road with a bulldozer(推土机)before driving over them and found that they helped to produce all kinds of tones.

　　The optimal speed for melody road is 44 kph，but people say it is not always easy to get the intended sound.

　　“You need to keep the car windows closed to hear well，”wrote one Japanese blogger.“Driving too fast will sound like playing fast forward, while driving around 12 mph[20 km/h]has a slow­motion effect, making you almost car­sick.”

　　47．According to the passage，melody roads use________to create different notes.

　　A．cars

　　B．grooves

　　C．spaces between intervals

　　D．bulldozers

　　48．We can learn from the passage that the highness of notes is depended on________.

　　A．how far the grooves are

　　B．how big the grooves are

　　C．the number of the grooves

　　D．the speed of the car

　　49．The underlined word “optimal” in the passage might mean________.

　　A．fastest

　　B．possible

　　.

　　C．best

　　D．suitable

　　50．In order to hear the music well，you have to________.

　　A．drive very fast

　　B．drive slowly

　　C．open the windows wide

　　D．keep the windows closed第二节　(共5小题；每小题2分，满分10分)

　　根据短文内容，从短文后的选项中选出能填入空白处的最佳选项，选项中有两项为多余选项。

　　The

　　First Americans

　　There was a time long ago when a land bridge connected Asia and North America. The first settlers in North America crossed this land bridge from what is now Sibria to Alaska. The people who made this initial crossing were probably following the animals they used for food.

　　Eventually, the oceans rose and the land bridge between the continents disappeared. The settlers, who I shall call the “First Americans”，could not return to their homeland. __51__

　　For the next few thousand years, the First Americans migrated south and east throughout North and South America. They made the journey all the way from Alaska to the southern tip of South America, a distance of more than 10,000 miles. __52__

　　In the far north, above the Arctic Circle, the First Americans became hunters of the ocean.__53__ In the brief summer, they gathered berries and other plants. In the winter, they stayed in lodges much of the time preparing for the next summer. It was a hard life, but they learned to survive in these harsh conditions.

　　Farther south, in what is now Arizona, Utah, Colorado, and New Mexico, the First Americans became cliff dwellers(悬崖居民). They began by living in caves that already existed in the cliffs.__54__The dwellings they constructed in many ways resembled today's apartment buildings.

　　__55__They built a system of dams and canals so they could store and use water almost any time of the year. They were so successful that they could raise fruits and vegetables that were not found naturally in the desert.

　　In Mexico and South America, the First Americans founded civilizations that were among the greatest in the world. They built huge pyramids, lived in fabulous cities, and made great advances in science and mathematics long before the Europeans arrived.

　　A．They also discovered foods like corn and potatoes.

　　B．Along the way, they established many different civilizations.

　　C．The First Americans of the Southwest learned to irrigate the desert.

　　D．They would have to survive in the New World they had discovered.

　　E．They built boats of animal skins and hunted or fished for their food.

　　F．People living near each other tended to share similar environments and customs.

　　G．They discovered how to add to the caves by building structures of wood and stone.

　　第三部分　写作(共两节，满分35分)

　　第一节　短文改错(共10小题；每小题1分，满分10分)

　　假如英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。

　　增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。

　　删除：把多余的词用斜线(﹨)划掉。

　　修改：在错的词下划一横线，并在该词下面写出修改后的词。

　　注意：1.每处错误及其修改均仅限一词；.

　　2.只允许修改10处，多者(从第11处起)不计分。

　　Though great progress have been made in science these years, there are still many people live in poor conditions. They make their lives by collecting or selling used things. Their children cannot go to school because they had not enough money to send their children there. How do you think so many people still suffer from poverty now? The answer lies on the population explosion. A president of a developing country once said, “It is us who are to blame for the poverty because we used to ‘produce’ child without limit.” Although this few words sound simple enough, they have clear pointed out one of the causes of the population explosion.

　　第二节　书面表达(满分25分)

　　You are supposed to write a composition on the topic Making Friends Selectively or Extensively. You should write about 100 words and base your writing on the outline given below：

　　1．有些人认为应该有选择地交朋友；

　　2．另一些人认为应该广泛地交朋友；

　　3．你的看法。

　　Making Friends Selectively or Extensively?

　　________________________________________________________________________

　　________________________________________________________________________

　　________________________________________________________________________

　　________________________________________________________________________

　　答案解析

　　第一部分

　　第一节

　　1．A 　考查固定短语的用法。take the risk of冒着……的危险；at risk 处于危险中；遭受危险。

　　2．A 　语境：当我看到一些熟悉的面孔时，我开始感到舒畅了。feel at home感到畅快、自在； at heart在内心里(在本质上)；at will 随意地；at sight 一见就……。

　　3．A　考查动词短语辨析。pick out挑选出，辨认出；stand out突出，出色；make out理解，辨认；stand for代表，象征；take out拿出，取出；stand by支持，拥护，袖手旁观；bring out取出，显示；stand aside躲开，让开。根据句意选A。

　　4．D　本题考查介词的搭配。句意为：在为你的新房装修选窗帘的时候，重要的是要知道什么样的颜色映衬在墙纸上是最好看的。against是映衬的意思。根据句意可知，D为最佳答案。

　　5．B

　　　mind＝be careful about 留心，留神。

　　6．A 　考查词组辨析。此处所要表达的意思是接着昨天的故事继续讲，A项take up表示“继续”，符合题意。take on“承担，呈现，雇用”；take in“理解，吸入，欺骗”；take over“接管，接替”，都不符合语境。

　　7．A

　　　本题考查地点状语从句。由where引导出地点状语，表示“在考试少的地方”。

　　8.D 　it is little/ small/ no wonder that… ……不足为怪。

　　9．D 　本题考查词组辨析。rather than而不是；or rather更确切地说；more than超过，多余；other than除了。none other than意为“正是”。

　　10．C 　should在这里表示预期，意为“应该会，可能”。can表示有能力做或能够发生；would表示想象中的结果；must表推测，或表必须。

　　11.B　 把对话中的答语放到问句中可得I enjoy playing table tennis most…in the

　　summer holidays.由此可知本题设空处应该是句子的目的状语而不是enjoy的宾语。故选B。

　　12．C 　考查as作关系代词的用法。as“正如，就像”，引导非限制性定语从句。

　　13．C 　whoever引导的名词性从句作to的宾语，whoever又在这个从句中作主语。whoever引导名词性从句时相当于any person who/the person who“任何人，无论谁，……的人”。

　　14．C 　短语be opposed to sth./doing sth.意为“反对”。此处用过去分词作后置定语，相当于定语从句 who was opposed to carrying out…而object to (doing)sth.表示“反对(做)某事”，要作定语也要用现在分词形式。

　　15．A 　该题考查情景交际用语。Forget about it“算了吧，别提了”；No trouble“不麻烦”；All right“行了，好吧”；You’re welcome“不客气”。根据语境可知，本题最佳答案为A。

　　第二节

　　16．C　许多孩子和养父母在一起要比和亲生父母在一起健康、开心得多，这并不是一个秘密。对于那些在家里受亲生父母虐待的孩子而言尤其如此(true)，因为(because)法律盲目认为生理上的父母会更好。本句为对比句。可参照下文It's also true of children … because of…

　　17．D　表原因，解析见上一题。

　　18．C　同样，对于那些在收养家庭中多年遭受(suffer)痛苦的孩子们来说也是如此，因为他们的养父母不能或者不愿意照顾他们，但是又拒绝(refuse)放弃监护权。

　　19．B　解析见上一题。

　　20．C　14岁的Kimberly不适合(fits)上述两种情况。

　　21．B　Kimberly的判例对属于上述两种情况的孩子而言最终(eventually)是有所帮助的。

　　22．B　Kimberly向来是她的养父与从未和她一起生活过的亲生父母争夺监护权的对象或目标(object)。

　　23．A　法官裁决(ruled)Kimberly可以继续与其唯一熟悉的养父生活在一起，驳回亲生父母对Kimberly监护权的要求(claim)。

　　24．D　解析见上一题。

　　25．A　根据本句后的baby可判断此处为birth。句意：Kimberly出生后不久就被抱错。

　　26．D　既然是mistakenly switched“被交叉抱错”，那么与之回家的自然是wrong parents，当然不会是亲生父母。

　　27．D　另外一个小孩在1988年生病夭折。医学检查表明(showed)这个小孩不是Kimberly亲生父母的孩子，Kimberly才是。Kimberly亲生父母由此与其养父展开了一场争夺监护权的斗争(battle)。

　　28．A　解析见上一题。

　　29．C　最后双方达成协议(agreed)，养父保留监护权，亲生父母有探望(visiting)权。

　　30．C　解析见上一题。

　　31.A　但养父若认为亲生父母的探望使Kimberly受到了伤害(harmed)，则该权利终止。

　　32．B　把Kimberly留给(leave)她的养父引起了激烈的讨论。

　　33．C　法官明确地说，Kimberly也有权为了(on)自己的利益提起诉讼(比如，假设在亲生父母的经济状况远好于养父的情况下)。on one's behalf 为……的利益，代表。

　　34．A　Kimberly并不仅仅(more than)是其亲生父母的私有财产。more than不仅仅；no more than仅仅；not more than不超过，至多，不比……更；less than小于，少于，不超过，不到，决不，毫不。

　　35．C　血缘关系并不意味着亲生父母可以剥夺孩子全部的权利(rights)。

　　第二部分

　　第一节

　　A

　　36．D　细节理解题。根据第二段第二句“…toy bears were named‘Teddy’ after the president's nickname.”可知选 D。

　　37．B　细节理解题。根据第三、四段关键信息可知，两者的差别在于所使用的材料不同，一个是steel，一个是wood。

　　38．B　细节理解题。根据倒数第三段第二句可知选B。

　　39．A　细节理解题。根据最后一段最后一句可知答案。

　　B

　　40．C　推理判断题。文章提出许多媒体上的广告都含有虚假成分，夸大其词，而事实上广告中的产品往往不具有其所宣称的效果。文章第四段提到这些产品的效果是值得怀疑的，不可靠的，甚至是危险的。objective“客观的，不带偏见的”；costly“昂贵的”；unreliable“不可靠的”；illegal“不合法的，违法的”。

　　41．D　细节理解题。第四段第一句话说“通常这些产品对推销者来说只是挣钱的工具”，显然D项“推销者通常只关注利润”符合题意。

　　42．A　细节理解题。从第五段第二句话可知A项正确，如果是药物的生产，则必须向FDA证明其安全性和有效性。

　　43．B　细节理解题。倒数第二段提到的这个案例与上一段最后一句话紧密相连，是对其进行举例说明；第三句话说FDA对the Relaxacisor的经销采取了法律措施，责令其停止销售，所以答案为B。

　　C

　　44．C　细节理解题。通读全文可知，Christopher Thomas对于自己的疾病采取了积极的态度，所以C项正确。

　　45．A　细节理解题。根据第二段“…diabeticrockstar.com，a free online community for diabetics and their loved ones—a place where over 1,100 people share personal stories, information, and resources”可知A项正确。

　　46．B　细节理解题。第三段Father and son visit the online children's forums(论坛) together most evenings. “Kody gets so excited, writing to kids from all over，” says Swencki, one of the site's volunteers. “They know what he's going through, so he doesn't feel alone.” 可知B项正确。

　　D

　　47．C　细节理解题。根据第三段最后一句话The melody road uses the spaces between to create different notes.可以得出答案为C。

　　48．A　细节理解题。根据第四段可知，声音的高低取决于凹槽的间距，因此正确答案为A。

　　49．C　词义猜测题。根据倒数第二段，并联系上下文可以推断，optimal在这里意为“最佳的，最理想的”，因此正确答案为C。

　　50．D　细节理解题。根据最后一段第一句话可以得出选项D正确。其余三项都与原文说法不符。

　　第二节

　　51－55　DBEGC

　　第三部分

　　第一节

　　Though great progress hav been made in science these years，there are still many people liv in poor conditions.They make their lives by collecting o selling used things.Their children cannot go to school because they ha not enough money to send their children there.Ho do you think so many people still suffer from poverty now？The answer lies o the population explosion.A president of a developing country once said，“It is u who are to blame for the poverty because we used to ‘produce’ chil without limit.” Although

　　few words sound simple enough，they have clea pointed out one of the causes of the population explosion.

　　第二节

　　One possible version：

　　Making Friends Selectively or Extensively?

　　When it comes to whether we should make friends selectively or extensively, there is no complete agreement among people. Some people take it for granted that we should make friends selectively and carefully. However, others maintain that making friends extensively should be regarded as the better choice.

　　Those people who hold the first opinion believe that it's sensible to look for friends who have similar ideal and outlook on life as well as temperament. In addition, they needn't waste time dealing with the people they don't like and prevent themselves from being affected by those people. However, still others think differently. In their opinions, the more friends we make, the easier our life will be. Besides, they argue that we can absorb and learn from the advantages of different people.

　　Weighing up these two arguments, I prefer the former one. For one thing, not all friends are suitable for us and easy to get along with. For another, friends with similar goals will help us sweep off difficulties. Considering these, we may reasonably conclude that making friends selectively can bring us true friends.