北師大版（2019）必修第二冊(cè)《Unit 5 Humans and nature Lesson 1》2021年同步練習(xí)卷

Ⅰ.單詞拼寫

• 1．He was very

  （害怕） that the plane would crash．
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• 2．It's a complete

  （神秘事物） to me why they chose him.
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• 3．We can always find new beauty in Shakespeare's

  （詩歌）.
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• 4．People are

  （好奇的） about how the show Dimension Nova （《跨次元新星》） is shot.
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• 5．Those organisms that are most suited to the environment will

  （幸存）.
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• 6．He gave us a w

  as the bus drove off.
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• 7．He is fed by a

  （管子） that enters his nose.
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• 8．You can't see the full

  （面積）of the beach from here.
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Ⅱ.七選五

• 25．The Amazon Rainforest：A Natural Treasure Welcome to the Amazon rainforest.As the largest rainforest in the world，it plays a significant role in maintaining the fine balance of the Earth's ecosystem.
     The Amazon rainforest crosses into eight countries.With an area of around 5.5 million square kilometres，the Amazon rainforest is more than half the size of China.The Amazon River，from which the rainforest gets its name，is about 6，440 kilometres in length.On its journey from the mountains to the ocean，the river supports many different ecosystems.（1）

  .
     Of the 390，000 plant species known to man，more than 40，000 can be found in the Amazon rainforest.The forest's different levels support an unbelievable variety of wildlife.At the bottom，there is a system of roots beneath the ground.Above that is the mass of leaf litter on the dark forest floor.（2）

  .Then there are the towering ancient hardwoods，and finally the tops of the tallest trees many metres above the ground.Each level of the forest forms its own little world，home to different kinds of living things.
     More than 1，300 species of birds and over 400 species of mammals hide among the jungle's plant life.The jaguar is one example.It has yellowish-brown coat with black spots.While a significant number of jaguars survive here，they are only one element of this forest's food chain. （3）

  .These frogs，in turn，feed on insects which eat leaves and fruit.When a jaguar dies，a tiny army of microorganisms helps break down its body and return the nutrients to the Earth.
     The Amazon rainforest breathes life into the planet by fixing carbon and producing over 20 percent of all the Earth's oxygen.（4）

  .Moreover，the Amazon rainforest is a treasure house of species that can be used for food or medicine.Yet there is one major danger to these irreplaceable plants and animals：us.
     （5）

  .As the impact of human activities such as agriculture and cattle farming continues to grow and the list of species in danger of extinction becomes longer，we are left with a question：can we afford to damage the "lungs of the planet"？
  
  A.They feed on at least 87 species，including frogs
  B.Thus，it is often known as the "lungs of the planet"
  C.Rivers tend to be the easiest way to enter the forest
  D.The next level is made up of shorter plants with large leaves
  E.They give this area the richest species of plants and animals on the Earth
  F.Currently the trees in the Amazon rainforest take in around 500 million tonnes of CO₂ each year
  G.Over the past 50 years，17 percent of the rainforest has disappeared due to human activities
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Ⅲ.語法填空

• 26．Starting a wildlife conservation center is a necessary（1）

  important job，but it hardly brings money to its founder and so it is for Jane Thomas.She spent several years（2）

  （build） the Motley Zoo，and devoted herself to wildlife（3）

  （protect） in Redmond，Washington，but all money she made was spent straight back on the zoo.She was determined （4）

  （continue） to do her work，even though there was little money to reward her.
      But things changed this year. "As crazy as it sounded，because of my efforts，I received a secret donation：＄9，000，" Thomas said.She decided to use the money（5）

  was donated by a stranger this year to rescue more animals.She advertised the animal rescue in the street and received much support from（6）

  public.
      Thomas said， "Ever since I advertised the animal rescue in the street，I（7）

  （attract） many people.Now when I walk in the street，many（8）

  （passer-by） wave and even shout to me 'I adopted （收養(yǎng)）my dog from you!' I feel （9）

  （shock） that people treat me（10）

  （nicely） than ever."
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