人教版（2019）必修2《Unit 2 Wildlife Protection》2021年单元测试卷

第二部分　阅读理解（共两节，满分20分）第一节（共3小题；每小题8分，满分20分）阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。

• 1．More and more birds are flying to settle at Qinghai Lake，one of the highest inland lakes in China，thanks to the protection efforts of local governments.Covering an area of over 4，000 square kilometers，Qinghai Lake is also the country's biggest salt-water lake.
      Located in Northwest China's Qinghai Province，the lake is famous for the two islands at its northwest point-Cormorant Island and Egg Island.
     The two islands have plenty of floating grass and various schools of fish，offering rich food sources for birds.The islands have become a paradise for different kinds of groups of birds and have been called "Bird Islands".
     Each March and April，when ice and snow covering the Qinghai-Tibet Plateau starts to melt，over 20 kinds of birds fly to the Bird Islands to lay eggs.
     During the months，flocks of birds cover the whole sky over the islands and birds eggs can be found everywhere.Visitors can hear the singing of birds from miles away.These have become a world famous symbol of the lake.
     To protect this paradise for birds and support calls for ecological protection，China set up the Qinghai Lake Natural Protection Zone at the end of 1997.Meanwhile，the State has pointed out the Bird Islands and Spring Bay of the Qinghai Lake as central protection zones.
     Inspection officials and management employees often patrol the lake，improving local residents' knowledge of related laws and spreading knowledge about animal protection to visitors.They are making great efforts to call on people to love and protect the birds.
     At the same time，they have built special fences around the island area，to prevent wolves，foxes and other carnivorous（食肉的）animals，as well as illegal hunters from breaking up the birds' nest-building，egg-laying and breeding.As a result，more and more birds are coming to the islands for sheltering and breeding.
  
  （1）Why are more and more birds coming to the biggest salt-water lake in the Great Northwest？

  
  A．Because it is getting warmer and warmer.
  B．Because it is being reformed.
  C．Because environments there are getting more and more agreeable for them to live in.
  D．Because the people there are becoming richer and richer.
  （2）The birds feed on

  according to the passage.
  A．floating fish and various grasses
  B．grass moving on the water surface and different kinds of fish
  C．salt water and plenty of grains
  D．corn from the local farmers
  （3）What can be inferred from the passage？

  
  A．The ice and snow covering the Qinghai-Tibet Plateau doesn't change into water unless more than 20 kinds of birds come to the Bird Islands.
  B．Flocks of birds fly up to the whole sky over islands to lay eggs.
  C．Visitors can't hear the singing of birds within miles.
  D．"The ice on the Plateau begins to change into water" means spring is coming.
  （4）The officials go around the lake mainly to

  .
  A．let the farmers there know the animal protection law
  B．tell the farmers there some knowledge about animal protection
  C．call on people to love and protect the birds
  D．all of the above
  组卷：10引用：1难度：0.5

  解析

• 2．California Condor's Shocking Recovery
  California condors are North America's largest birds，with wing-length of up to 3 meters.In the 1980s，electrical lines and lead poisoning （铅中毒）nearly drove them to dying out.Now，electric shock training and medical treatment are helping to rescue these big birds.
     In the late 1980s，the last few condors were taken from the wild to be bred（繁殖）.Since 1992，there have been multiple reintroductions to the wild，and there are now more than 150 flying over California and nearby Arizona，Utah and Baja in Mexico.
     Electrical lines have been killing them off. "As they go in to rest for the night，they just don't see the power lines，" says Bruce Rideout of San Diego Zoo.Their wings can bridge the gap between lines，resulting in electrocution （电死）if they touch two lines at once.
     So scientists have come up with a shocking idea.Tall poles，placed in large training areas，teach the birds to stay clear of electrical lines by giving them a painful but undeadly electric shock.Before the training was introduced，66% of set-free birds died of electrocution.This has now dropped to 18%.
     Lead poisoning has proved more difficult to deal with.When condors eat dead bodies of other animals containing lead，they absorb large quantities of lead.This affects their nervous systems and ability to produce baby birds，and can lead to kidney（肾）failure and death.So condors with high levels of lead are sent to Los Angeles Zoo，where they are treated with calcium EDTA，a chemical that removes lead from the blood over several days.This work is starting to pay off.The annual death rate for adult condors has dropped from 38% in 2000 to 5.4% in 2019.
     Rideout's team thinks that the California condors' average survival time in the wild is now just under eight years. "Although these measures are not effective forever，they are vital for now，" he says. "They are truly good birds that are worth every effort we put into recovering them."
  
  （1）California condors attract researchers' interest because they

  .
  A．are active at night
  B．had to be bred in the wild
  C．are found only in California
  D．almost died out in the 1980s
  （2）Researchers have found electrical lines are

  .
  A．blocking condors' journey home
  B．big killers of California condors
  C．rest places for condors at night
  D．used to keep condors away
  （3）According to Paragraph 5，lead poisoning

  .
  A．makes condors too nervous to fly
  B．has little effect on condors' kidneys
  C．can hardly be gotten rid of from condors' blood
  D．makes it difficult for condors to produce baby birds
  组卷：6引用：1难度：0.6

  解析

第四部分　写作（满分15分）第一节 应用文写作（15分）

• 7．假定你是李华，家乡有一片湿地（wetland），每到春天，有很多鸟类，包括一些珍稀、濒危鸟类。请根据下列要求和你的想象给WWF（世界野生动物基金）写一封信。
  1．鸟类经常受到伤害；
  2．湿地面积减少；
  3．提出你的建议。
  组卷：6引用：1难度：0.5

  解析

第二节 概要写作（25分）

• 8．阅读下面短文，根据其内容写一篇60词左右的内容概要。
      One fifth of the world's plants are currently at the risk of disappearing forever.That is what a report by the Royal Botanic Gardens in London says.
      Scientists have so far identified 391，000 plants and more than 80，000 of those are in danger of becoming extinct.
      The plants are endangered by the growing population and clearing land for agriculture and urban development.
      Steve Bachman is a researcher at the Royal Botanic Gardens.
      "There's a lot of mouths to feed in the world now and that's growing，and we need the land.So basically the land's natural habitat is being converted so that we can have soya plantations，crops，livestock，and as a result，that's really causing species to lose their habitat."
      Plants are also threatened by logging and climate change.
      Scientists say governments should do more to create protected areas.
      Kathy Willis is director of science at the Royal Botanic Gardens.She says scientists need to identify which areas are important to conserve，or protect，for their diversity.
      Willis also says scientists need to identify which areas should be developed.
      Some plants are stars-but most do not get much attention.
      Even while some plants are disappearing，scientists are discovering others.Each year，scientists identify about 2，000 new plants.
      Last year，a specialist discovered a new plant in Brazil while viewing photographs posted on Facebook by a fan of flowers.The plant is an insect-eating sundew.In other words，they trap and eat insects for food.These kinds of insect-eating plants are very popular on the Internet.
      But other plants do not get the same amount of attention.
      Scientists say a general lack of interest in plants creates problems.Botany-the study of plants-is just not one of the most popular subjects in school.
      Kathy Willis says people should study botany because plants are so important to humans.
      But collecting and recording data on plants is a very difficult job.It's so difficult that botanists find it almost impossible to document all the plants that are becoming extinct.
  组卷：6引用：1难度：0.5

  解析