Available Answers

1. 1.

   Complete the sentences with the correct reflexive pronouns.

   1. Did you hurt _______________ when you fell?
   2. Since he was too poor to go to school, he taught _______________ to read and write at home.
   3. Tigers keep _______________ cool by lying in pools of water.
   4. Anita solved the puzzle all by _______________.
   5. The baby owl hurt _______________ when it tried to fly.
   6. I tried to convince _______________ that I was doing the right thing.
   7. In order to finish the work sooner, we distributed it amongst _______________.
   8. The food has been laid on the table. Please help _______________ to whatever you like.
2. 2.

   Complete the sentences with the correct phrasal verbs from the table. Use the correct forms.

   break open	to open forcefully
   break out	begin suddenly
   break down	to stop working
   break out of	to escape
   break away	to leave something
   break off	to get separated from

    

   1. The rebel soldiers wanted to _______________ from the army and join the enemy's side.
   2. The prisoner _______________ his cell by digging a tunnel through the wall.
   3. I reached late because the bus _______________ on the way.
   4. As a result of the faulty wiring, a fire _______________ and burnt down the entire building.
   5. They _______________ the wooden chest only to find that it was full of old clothes.
   6. The branch _______________ the tree during the fierce storm.
3. 3.

   Read this passage.

   In Yellowstone National Park, wolves were hunted to extinction in 1946. Then, in 1996, scientists released a pack of fourteen wolves inside the park. Seventy years later, the return of the wolves helped restore the forests and made wildlife return to Yellowstone National Park. How did this happen?

   As the top predators in Yellowstone, wolves feed on animals lower down the food chain and are not preyed upon by any other animals. With the wolves gone, herbivores like elk had no natural enemies within the park. Their populations exploded and they grazed the vegetation. When the wolves returned, elk numbers were kept in check. They began to avoid grazing river banks and valleys where wolves could hunt them easily. So, trees like Willow, Cottonwood and Aspen which were previously eaten up by the elk, started to flourish. Songbirds came back to nest in the high branches of these trees, whose roots held the soil and prevented riverbanks from being washed away. Beavers, which fed on the bark of the Willow and Aspen also came back. They built dams in streams which made them flow more slowly. The streams became rivers that flowed more steadily. The steady flow of the waters meant that less soil got washed away. The wolves, thus, helped change rivers and rebuild Yellowstone.

   This observation tells us two things. When we interfere in an ecosystem without understanding our impact on it, we may end up destroying it. However, if we want to save the planet, we must consider letting our wild places be and allowing nature to do the rest.

   1. Give the meanings of these words-
      1. extinction
      2. flourish
      3. interfere
   2. Why were the wolves reintroduced into Yellowstone National Park?
   3. What effect did the return of the wolves have on the vegetation?
   4. How did the growth of the vegetation affect other animals?
   5. What lessons does this observation give us?
   6. Write a summary of this passage in your notebook in 50 words.