title

Custom Search

 

[ Correct English | Common Errors | Words Differentiation | Sample Letters | Glossary of Correct Usage | Common Sentences | Q & A ]

[ English Compositions | Movie Reviews | High School Vocab | Advertisements ]

Sponsored Links

<<Prev

Comprehension

Next>>

   
TOEFL Vocabulary
English Conversation
English Grammar
American Idioms
English Comprehension
English Summary
English News
Business Idioms
 

Delightful Dolphins of the Deep 

For ages, sailors have said that it is good luck to see dolphins swimming alongside boats. Their presence meant that land was near, which would be vital information if a boat and her crew were in danger. Some dolphins have even protected shipwrecked sailors from sharks. It is no wonder that these unique and fascinating creatures have long been known as our friends.

You may think dolphins are fish, but they are actually mammals. They are related to whales and porpoises, and they evolved around 10 million years ago. Dolphins breathe air, give birth to live young, and feed them milk. They are social animals, living together in groups called pods or schools that range in size of up to 12. In places rich in food, many schools can combine together to form pods of up to 1,000 dolphins.

Dolphins are thought to be intelligent animals because of their playfulness, curiosity, and quick ability to learn. They seem to communicate with each other through a combination of squeaks, whistles, and clicks. While scientists don't know what they are going on about, it is thought that dolphins are telling each other that food is nearby, or warning each other of approaching danger. Dolphins use sonar to discover an object's size, shape, and location. By sending out a series of clicks and receiving the echo that bounces off the object, they can differentiate between a shark and a boat.

Unfortunately, dolphins have faced increasing danger in recent years. Fishermen in pursuit of profitable tuna may accidentally trap dolphins in their nets, killing them in the process. These intelligent mammals of the sea deserve our protection and respect.

     
  1.

Dolphins don't ______.

       
    (A)

lay eggs under the sea

    (B) speak with each other
    (C) have a strong aptitude for learning
    (D) live in groups that can be made up of hundreds
       
  2. How do dolphins communicate with one another?
       
    (A) Through radio waves.
    (B) Via sonograms.
    (C) By clapping their fins together.
    (D)

Through various noises.

       
  3. According to the article, what poses a threat to dolphins?
       
    (A) Whales.
    (B) Tuna.
    (C) Sailors.
    (D)

Fishermen.

       
      porpoises   a mammal that lives in the sea, swims in groups and looks similar to a dolphin but has a shorter rounder nose
           
      squeak   to make a short very high cry or sound
           
      in pursuit of   the act of trying to achieve
           
Sponsored Links
 
  Answers : 1) A    2) D    3) D
 
 

301    302    303    304    305    306    307    308    309    310    311    312    313    314    315    316    317    318    319    320    321    322    323    324    325    326    327    328    329    330    331    332    333    334    335    336    337    338    339    340    341    342    343    344    345    346    347    348    349    350    351    352    353    354    355    356    357    358    359    360    361    362    363    364    365    366    367    368    369    370    371    372    373    374    375    376    377    378    379    380    381    382    383    384    385    386    387    388    389    390    391    392    393    394    395    396    397    398    399    400    401    402    403    404    405    406    407    408    409    410    411    412    413    414    415    416    417    418    419    420    421    422    423    424    425    426    427    428    429    430    431    432    433    434    435    436    437    438    439    440    441    442    443    444    445    446    447    448    449    450    451    452    453    454

Comprehension 1

 
Sponsored Links

 

 
 
American Slang
English Proverbs
English Exercises
Common English mistakes
Ancient Chinese stories
Junior English essays
High school English essays
Lower Secondary English essays