课时规范练33(选修7Unit 3).阅读理解Understanding whats killing the worlds coral reefs (珊瑚礁) has been the life work of Mark Hay,the Teasley Professor in the School of Biology at the Georgia Institute of Technology.During the past 35 years,hes made more than 5,000 dives in both the Caribbean and Pacific and each year he spends as much as five months with villagers on the Fiji Islands.On November 7,2015,he received the Lowell Thomas Award from the New York-based Explorers Club.“Dr Hays research and discoveries have influenced the foundations in the field of marine (海洋的) chemical ecology and created new procedures for effective conservation and management of the worlds coral reefs,” the organization said.Hay notes that over the last 40 years,the world has lost 80% of coral reefs in the Caribbean and 50% of the reefs in the Pacific.“For about a billion people around the world in the tropics (热带地区),coral reefs are one of the major sources of protein,so the loss affects food security for these areas,”he said.“Reefs also provide storm protection for low-lying villages,absorbing big waves coming into shore.”Hays research has focused on the complex interactions between species that are part of the reef community.These plants and animals communicate with each other by sending chemical signals.For instance,seaweed harms coral by sending poisonous chemicals,and by mechanically damaging it.Certain fish control the seaweed,but overfishing has allowed seaweed to get out of control.Among recent examples,Hay and his partners have learned that degraded reefs produce chemicals that tell baby fish and baby coral to stay away.Unless those signals can somehow be changed,damaged reefs wont have a chance to recover.Many coral reef organisms lack hearing or vision.Instead,they must rely for their information on chemical signals provided by other organisms.1.According to the first paragraph,Mark Hay.A.devotes himself to studying oceansB.is very interested in outdoor activitiesC.is the best expert in studying coral reefsD.does most of his experiments in the wild2.What made Mark Hay win the prize?A.His deep devotion to land management.B.His great efforts to conserve marine plants.C.His huge contribution to the safety at sea.D.His new methods for protecting coral reefs.3.Mark Hays words in Para.3 suggest that.A.coral reefs do much good for sea lifeB.coral reefs are being damaged seriouslyC.the loss of coral reefs has broad impactsD.people have realized the importance of coral reefs4.What is the interaction between certain fish and coral reefs?A.Certain fish can protect coral reefs.B.Coral reefs may be destroyed by certain fish.C.Certain fish send chemical signals to coral reefs.D.Coral reefs produce chemicals to attract certain fish.导学号23280132.完形填空(2018江西抚州临川一中期中检测)Two years ago,when I was still at university,I also worked at a restaurant.Every day I would see people sitting there,doing whatever they1.How I envied them!I couldnt,2,because I had to work nine hours a day and 3 the rest of the time.For the rest of my life I will 4 the difficulties of that time forever.Last Sunday,it was rainy;a5 was hitting the city.What a perfect day to sit and 6 !I went into a coffee bar,ordered a cup of coffee,and sat down to read the newspaper.Then an old man,helped by a nurse,entered with his whole body shaking.Every step seemed to be a7 for him.I wasnt sure,but he looked 8 to me.I approached him,and recognized him as one of my customers two years ago.He was a retired professor.We had become friends in the9.We often did word puzzles together,and he was always the first to 10.One day,after some weeks,I finally finished before him.The next day he gave me,as a 11,an expensive Scrabble set,which I would 12 have been able to afford myself.I felt very13 when I saw him again this time.He had loved to 14,but now his mouth could not manage it.15 and wise as he had been,he was struck by kidney cancer like an ordinary man.I told him I had got married,and decided not to 16 my studies.I was embarrassed 17 I knew I was letting him down,but he seemed to sense my 18 and said something I would never 19.“Kate,many people spend their whole life 20 happiness.Be thankful that you have found it.”1.A.likedB.interestedC.imaginedD.chose2.A.meanwhileB.howeverC.thereforeD.whatever3.A.dateB.studyC.sleepD.play4.A.desireB.describeC.rememberD.record5.A.bombB.planeC.floodD.storm6.A.relaxB.entertainC.talkD.wait7.A.pleasureB.surpriseC.powerD.struggle8.A.funnyB.strangeC.familiarD.dangerous9.A.universityB.restaurantC.hotelD.hospital10.A.put them downB.take them offC.get them awayD.work them out11.A.prizeB.jobC.toolD.punishment12.A.alwaysB.sometimesC.usuallyD.never13.A.sadB.scaredC.shyD.happy14.A.sayB.eatC.laughD.think15.A.WeakB.AngryC.IntelligentD.Stupid16.A.s