版一轮优化探究英语北师大版练习必修一 Unit 3 Celebration Word版含答案.docx

1、版一轮优化探究英语北师大版练习必修一 Unit 3 Celebration Word版含答案模块达标检测(一)限时：100分钟.阅读理解AThe Coolest InventionsAn Oceans VacuumTheres a collection of plastic trash in the middle of the Pacific Ocean.Its bigger than Texasand growing.The way to clean it up now is to catch it with nets.That is both costly and slow.Instead

2、，the Ocean Cleanup Project proposes a 62milelong floating barrier that would use natural currents to trap trash.If next years trials succeed，a full cleanup operation would aim to start in 2020.It could reduce the trash by 42% over 10 years.EasyOn ShoesIn 2012，Matthew Walzer，a high school student wit

3、h a disability，sent a note to Nike.“My dream is to go to college，” he wrote，“without having to worry about someone coming to tie my shoes every day.” Nike assigned a design team to the challenge.This year，they came out with their solution: the FlyEase.The basketball shoe can be fastened with one han

4、d.A pair of Nike FlyEase shoes sells for $130.An Airport for Drones(无人机)As Amazon，Google，and others get ready for drone delivery service，there is one big question: What kinds of home bases will their drones have? Rwanda，in Africa，may have the answer.There，workers will soon start work on three “drone

5、 ports.” The goal is to make it easier to transport food，medical supplies，electronics，and other goods through the hilly countryside.Construction is set to be completed in 2020.语篇解读本文是一篇应用文。文章介绍几项最新的发明。1Whats the advantage of the Oceans Vacuum?AIt can be a moneysaver.BIt can grow year by year.CIt can

6、 tear plastic into pieces.DIt can be put into wide use soon.解析：细节理解题。第一段中说到传统用网打捞塑料的方法既费钱又慢，由此可知，借助自然的力量打捞塑料的方法要快捷省钱。答案：A2What do we know about Nike?AIt offers free shoes to the disabled.BIt is designing new shoes frequently.CIt provides customerfriendly services.DIt responded to Matthews request pa

7、ssively.解析：推理判断题。Matthew Walzer身患残疾，系鞋带不方便，给耐克公司寄去信件后，耐克公司积极回应并设计出了一款可以单手系的鞋带，由此可以推断耐克公司以客户需求为中心。答案：C3Why is Rwanda setting up “drone ports”？ABecause road travel there is rough.BBecause there are too many drones.CBecause theyre easier to construct than roads.DBecause they are receptive to new techno

8、logy.解析：细节理解题。由最后一段中的The goal is to make it easier to transport food，medical supplies，electronics，and other goods through the hilly countryside可知，因为陆路运输不便，卢旺达决定建无人机机场。答案：ABMany of the 285 million people who have vision problems live in lowincome countries，according to the World Health Organization.T

9、he WHO says most people with vision problems could be helped or cured.The nonprofit organization Orbis has a plane that is also an eye clinic.The plane allows medical workers to perform operations around the world.Orbis has the worlds only flying eye hospital.This June，it introduced its latest model

10、，an MD10 airplane donated by the FedEx company.It is the third version of the flying eye hospital.Dan Neely is a volunteer doctor for Orbis.He has traveled to Jamaica and Africa on the new plane.He says this plane has all the newest technology.Some facilities on the ground do not.“You can be in Zamb

11、ia and the power goes out in the middle of the surgery，” Neely said.Bob Ranck，CEO of Orbis，is a retired US.Air Force brigadier general.Ranck explained that the new plane also includes a classroom.Orbis uses the room to train doctors and nurses in the countries where it lands.He said Orbis teaches lo

12、cal healthcare providers to make it a priority (优先考虑的事情) to reduce cases of blindness.Gary Dyson is a pilot who usually flies cargo(货物) planes for FedEx.But he volunteers flying time for Orbis.“When you see a child who cant see on Monday and they can see on Wednesday，youre hooked，” Dyson said.The ch

13、ange in a patients life after surgery can be dramatic，said Rosalind Stevens，a volunteer doctor from the Geisel School of Medicine at Dartmouth College.“When we remove the patch(眼罩)，the patient breaks into a big smile，” she said.The newest version of the flying hospital will make flights to a few cit

14、ies in the United States.Then it will provide a medical program in China in September.Orbis also operates programs in Cameroon，Ethiopia，Ghana，China，Vietnam，India，Bangladesh，Indonesia and Latin America.语篇解读本文是一篇记叙文。奥比斯飞行眼科医院为世界各地患有眼疾的病人提供医疗服务。4What is Orbis?AIt is a branch of the WHO.BIt is a profita

15、ble hospital.CIt is the name of a plane.DIt is a charitable body.解析：细节理解题。由第二段首句中的The nonprofit organization Orbis可知，这是一个慈善团体。答案：D5What do we know about the flying eye hospital?AIt is fully funded by FedEx.BIt only goes into local business.CIts three planes are all in operation.DIts plane has been c

16、onstantly updated.解析：细节理解题。由第二段中的This June，it introduced its latest model，an MD10 airplane donated by the FedEx company.It is the third version of the flying eye hospital可知，这家飞行医院的飞机在不断更新。答案：D6What does Neely think of the facilities on the ground?AThey are undependable.BThey are being misused.CThey

17、can be improved soon.DThey are provided by the WHO.解析：推理判断题。由第三段中的Some facilities on the ground do not.“You can be in Zambia and the power goes out in the middle of the surgery，” Neely said可知，地面有些医院的设施不可靠。答案：A7For what purpose is a classroom set up on the new plane?ARecreational. BEducational.CComme

18、rcial. DAdministrative.解析：推理判断题。由第四段中的Orbis uses the room to train doctors and nurses in the countries where it lands可知，Orbis出于教育目的在飞机上设立了教室。答案：BCPatients in the early stages of Alzheimers disease often struggle to remember recently learned information，meaning they forget things like important appoi

19、ntments or where they left their keys.But it seems that these memories are not lost.They are still filed away in the brain somewhere; they just cant be easily accessed.Now，researchers at MIT have developed a means of getting back memories in mice suffering from Alzheimers.The method relies on a tech

20、nique that uses light to control genetically modified neurons (转基因神经元)Currently it is too early to be used in human trials as it involves inserting light emitting (发光) equipment into the subjects brains，but the same principles still apply，the researchers said.“The important point is that this is evi

21、dence of the concept.That is，even if a memory seems to be gone，it is still there.Its a matter of how to get it back，” said the senior researcher Susumu Tonegawa.The team took two groups of mice，one genetically engineered to develop Alzheimers and one healthy.They then placed them into a room and gav

22、e them a mild electric shock.All of the mice showed fear when put back in an hour later.When placed in the room a third time several days later，the Alzheimers mice acted normally.They had forgotten the shock.The researchers were then able to bring back the memory of the shock by activating(激活) the c

23、ells in which the memories were stored.Even when the mice were put into an unfamiliar room，they showed fear when the cells associated with the shock were activated.“Shortterm memories seem to be normal，on the order of hours.But for longterm memories，these earlyAlzheimers mice seem to be damaged，” sa

24、id the lead researcher Dheeraj Roy.“Directly activating the cells that we believe are holding the memory helps them get it back.This suggests that it is indeed an access problem to the information，not that they are unable to learn or store this memory.”语篇解读本文主要介绍了利用光控制转基因神经元使早期老性痴呆病患者恢复记忆的技术。8What c

25、an we learn about the researchers at MIT?AThey are the pioneers of brain research.BThey have used the method in human trials.CThey can cure Alzheimers using the new method.DThey can get back memories in mice with Alzheimers.解析：细节理解题。根据第二段的第一句“Now，researchers at MIT have developed a means of getting

26、back memories in mice suffering from Alzheimers”可知，他们能够使患有早期老性痴呆病的老鼠恢复记忆。答案：D9Why did the Alzheimers mice behave normally for the third time?AThey failed to remember the electric shock.BThey were accustomed to the situation.CThey managed to overcome the fear.DThey activated the association automatic

27、ally.解析：细节理解题。根据第四段的“the Alzheimers mice acted normally.They had forgotten the shock”可知，这些老鼠忘记了受到的电击。答案：A10For longterm memories，the earlyAlzheimers mice _.Acan transform their brain cellsBcant learn new tricks wellCcan easily get back their memoriesDcant access the information stored解析：推理判断题。根据最后一段

28、的“But for longterm memories, these earlyAlzheimers mice seem to be damaged”和“Directly activating.this memory”可知，对于长期记忆来说，这些处于早期老性痴呆病早期的老鼠因为(脑细胞)已经被损害，不能使用这种已经储存的信息。答案：D11The main purpose of the text is to _.Aintroduce a method of a researchBreport the latest discovery about a diseaseCgive advice on

29、how to improve memoriesDexplain how a brain stores information解析：写作意图题。通读全文可知，本文的主要目的是报道关于早期老性痴呆病的最新发现。答案：BDI work with Volunteers for Wildlife, a rescue and education organization at Bailey Arboretum in Locust Valley. Trying to help injured, displaced or sick creatures can be heartbreaking；survival

30、 is never certain. However, when it works，it is simply beautiful.I got a rescue call from a woman in Muttontown. She had found a young owl (猫头鹰) on the ground. When I arrived，I saw a 2to 3weekold owl. It had already been placed in a carrier for safety.I examined the chick (雏鸟) and it seemed fine. If

31、 I could locate the nest，I might have been able to put it back，but no luck. My next work was to construct a nest and anchor it in a tree.The homeowner was very helpful. A wire basket was found. I put some pine branches into the basket to make this nest safe and comfortable. I placed the chick in the

32、 nest, and it quickly calmed down. Now all that was needed were the parents, but they were absent. I gave the homeowner a recording of the hunger screams of owl chicks. These advertise the presence of chicks to adults; they might also encourage our chick to start calling as well. I gave the owner as much information as possible and headed hom