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Scientists say record heat has cost reef half of corals

The Great Barrier Reef, one of the earth's most precious habitats, lost half of its coral populations in the last quarter-century, a decline that researchers in Australia said would continue unless drastic action is taken to reduce the effects of climate change.

Colony sizes were smaller, there were fewer “big mamas," or older large corals that produce baby corals; and there were fewer of those babies, which are vital to the reefs future ability to_________. "Our results show the ability of the Great Barrier Reef to recover — its resilience (恢复力) — is weakened_________ the past, because there are fewer babies, and fewer large breeding adults," Dr. Andy Dietzel, the lead author of the study, said in a statement.

_________ a process in which corals turn white as water temperatures rise — contributed to sleep losses of Barrier Reef in 2016 and 2017. The southern part of the reef was also_________ to record — setting temperatures in early 2020. Researchers cited climate change as one of the major_________ of disturbances to reef.

“There is no time to_________ they said in a statement. "We must sharply decrease greenhouse gas emissions as soon as possible.”

Researchers were disappointed about what they saw as a lack of attention to the study from government leaders in Australia, the world's biggest coral exporter. The government has _________ calls to reduce carbon emissions even as heat waves, drought and fires continue to reveal the country ,s situation of being hurt by climate change.

The Great Barrier Reef, which _________ a vast array of marine life, has between 300 and 400 coral species and stretches for thousands of kilometers across the Australian coast.

"You can_________ see it from space," said Deron Burkepile. a professor at the University of California, Santa Barbara.

Coral reefs worldwide are ____________ for billions of dollars is tourism and provide habitats for fish that feed close to one billion people on the planet, he said.

“The situation is serious," Professor Burkepile said. But people should not feel ____________ about the future of coral reefs, he said, even as they wait for world leaders to take more ____________ steps to control the effects of climate change.

At the local level, ____________ nitrogen (氮) pollution — which ____________ fading — can be controlled by reducing fertilizer and sewage runoff, according to a study that Professor Burkepile conducted with other researchers at his university. "The other thing that we need to take away is that coral reefs are amazing resilient," he said. "If we don't continually damage them, they will________________.

【小题1】
A.liveB.manufactureC.returnD.breed
【小题2】
A.in terms ofB.in relation toC.in comparison withD.with regard to
【小题3】
A.FadingB.FailingC.CollapsingD.Poisoning
【小题4】
A.accustomedB.subjectedC.elevatedD.adapted
【小题5】
A.driversB.resourcesC.consequencesD.aspects
【小题6】
A.loseB.actC.waitD.miss
【小题7】
A.raisedB.handledC.receivedD.resisted
【小题8】
A.supportsB.undergoesC.survivesD.accommodates
【小题9】
A.literallyB.alternativelyC.automaticallyD.particularly
【小题10】
A.responsibleB.profitableC.availableD.sustainable
【小题11】
A.suspiciousB.hesitantC.hopelessD.careless
【小题12】
A.exclusiveB.aggressiveC.oppressiveD.excessive
【小题13】
A.for exampleB.in factC.on the contraryD.in turn
【小题14】
A.strengthensB.weakensC.worsensD.exaggerates
【小题15】
A.inheritB.recoverC.growD.prosper
20-21高三下·上海宝山·阶段练习
知识点:动物科普知识 说明文 答案解析 【答案】很抱歉,登录后才可免费查看答案和解析!
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It was the first night of a tiring seven-day 250km race across the Gobi Desert a year ago. Mr. Leonard found a little dog going around his camp trying to __ herself.

“Cute, but I’m not giving you any, ”Leonard thought.   Like all __ , he had packed just enough for the whole race. He’d been running competitively for three years, and he had a __to win.

The next day, at the starting line, the dog __ him again. He waved her away, __ she might be stepped on by the runners.   However, the dog followed him all the way until the day s race __ .   That night the dog snuggled (紧贴) up to Leonard again and finally __   get a little food from him. By then, he was determined to name her Gobi.

The pair went on to finish the seven-day race, with Gobi __ a distance of 125km on her own, and that was enough for him to make a __ he would take her home to Edinburgh.   “Seeing Gobi on the race changed my attitude to things. It made me think more about stopping and helping her, __ just focusing on winning, ” said Leonard, who finished second.   “It also made my running more __, giving me a lot of pleasure. ”

As Leonard was preparing to get Gobi home, she was __ . With a group of 20 local volunteers coming to his __ , he finally found her. After that, Leonard never let Gobi out of his __. Now Gobi’s favorite activity is still running, and she __ does at least 8km with Leonard up the hills.

【小题1】
A.accommodateB.waterC.feedD.entertain
【小题2】
A.climbersB.competitorsC.explorersD.hikers
【小题3】
A.changeB.tendencyC.rightD.desire
【小题4】
A.botheredB.stoppedC.welcomedD.approached
【小题5】
A.worriedB.confusedC.ashamedD.astonished
【小题6】
A.ended upB.made upC.gave upD.signed up
【小题7】
A.expectedB.affordedC.managedD.begged
【小题8】
A.settingB.coveringC.keepingD.extending
【小题9】
A.differenceB.decisionC.commentD.choice
【小题10】
A.ahead ofB.but forC.regardless ofD.rather than
【小题11】
A.impressiveB.meaningfulC.extraordinaryD.enjoyable
【小题12】
A.missingB.sickC.injuredD.dead
【小题13】
A.lifeB.mindC.helpD.defense
【小题14】
A.wayB.sightC.handD.reach
【小题15】
A.absolutelyB.yearlyC.dailyD.entirely

It was about 5 am on Saturday when Amanda Tanner and her husband were suddenly awakened by their dog, Axel. When the ________ couple was slow to respond, the dog kept trying to get their ________. Her husband finally went downstairs and opened the door to let the dog outside, but Axel didn’t ________. Instead, the dog stopped in front of the door of the couple’s 17-year-old son, Gabriel, and wouldn’t ________: Inside, their son was having a stroke (中风). When Gabriel’s dad ________ the teen, he quickly realized something was wrong. The boy was slurring (说话含糊不清) his speech and couldn’t ________ his right side. The family rushed their son to the emergency room ________.

By waking the parents up and leading them to the boy, the dog made a “massive” ________ in Gabriel’s outcome, says Dr. Sabih Effendi, who treated the teen. “It’s very ________ that their dog alerted and started this whole process of getting everyone ________ and going downstairs,” Effendi says. “When somebody’s acutely having a stroke, the neurons (神经元) are dying. If he was not found and another three or four hours went by, there would have been more and more brain ________.”

“I am beyond ________ for whatever sensitivity Axel has to tell us what’s going on and to have moved that so fast, Amanda said. Tanner ________ to make a little medal of honor for him to go on his collar.” He’s now ________, with following Gabriel everywhere,” Amanda says. “He’s now sleeping with Gabriel, and Gabriel’s door is open so he can go in and out. He’s always been very sensitive to everything and everybody’s ________ at home.”

【小题1】
A.funnyB.boredC.excitedD.sleepy
【小题2】
A.attentionB.intentionC.solutionD.imagination
【小题3】
A.barkB.stopC.followD.jump
【小题4】
A.moveB.escapeC.appearD.exist
【小题5】
A.stared atB.turned toC.looked afterD.checked on
【小题6】
A.touchB.feelC.seeD.show
【小题7】
A.carelesslyB.particularlyC.hopefullyD.immediately
【小题8】
A.promiseB.choiceC.differenceD.decision
【小题9】
A.scaringB.amazingC.ridiculousD.humorous
【小题10】
A.awakeB.aliveC.afraidD.alone
【小题11】
A.lackB.powerC.injuryD.capacity
【小题12】
A.sorryB.hungryC.anxiousD.grateful
【小题13】
A.plansB.refusesC.pretendsD.wishes
【小题14】
A.facedB.taskedC.satisfiedD.bored
【小题15】
A.hobbiesB.strengthsC.emotionsD.stories

Lately, I have been struggling to connect with my dad because our conversations have seemed unimportant to him. In a half-hearted attempt to find something that ______ him, I pulled out my phone and showed him a few ______ of Jay, my new pet rabbit.

“Did Mom tell you I got a bunny?” It was a strange question. To my surprise, my dad’s ______ were lifted. “A black bunny!” he called out, getting closer to ______ the photos. He wanted to know more. I hurried to find more photos, holding on to this ______ opportunity.

I shouldn’t be ______ that it was a bunny that broke through the ______ between my dad and me. Growing up, we never talked much. ______, our time together centered around animals, like catching crayfish at the river and caring for turtles and crabs. ______ animals has always been our thing.

A few months later, I came prepared with more photos and videos of Jay on my laptop so my dad could see them more ______. I had been ______ that his initial interest in Jay was a one-off event, but he ______ up again when I showed him the new stuff.

Our love for animals is the ______ that connects us. There was no ______ to start having deep conversations if that had never been our style, — just finding ______ together in a photo of a bunny was enough.

【小题1】
A.connectsB.comfortsC.inspiresD.interests
【小题2】
A.giftsB.photosC.videosD.posters
【小题3】
A.spiritsB.feelingsC.eyesD.hands
【小题4】
A.point atB.glance atC.go overD.watch over
【小题5】
A.unexpectedB.unfinishedC.unimportantD.unsuccessful
【小题6】
A.disappointedB.annoyedC.satisfiedD.surprised
【小题7】
A.chatB.routineC.bridgeD.fog
【小题8】
A.PlusB.ThusC.MeanwhileD.Instead
【小题9】
A.RespectingB.LovingC.ResearchingD.Catching
【小题10】
A.easilyB.graduallyC.patientlyD.quickly
【小题11】
A.pleasedB.ashamedC.worriedD.discouraged
【小题12】
A.cheeredB.stoodC.gaveD.looked
【小题13】
A.trickB.privilegeC.bondD.routine
【小题14】
A.needB.helpC.harmD.chance
【小题15】
A.hopeB.joyC.successD.freedom

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