CBSE Class 7 English - Comprehension passage (2)
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Practice Worksheet on how to attempt a comprehension passage
• Readiing Comprehension
Directions: Read the passage. Then answer the questions below.
When we are young, we learn that tigers and sharks are dangerous animals. We might be scared
of them because they are big and powerful. As we get older, however, we learn that sometimes the most
dangerous animals are also the smallest animals. In fact, the animal that kills the most people every year
is one that you have probably killed yourself many times: the mosquito.
While it may seem that all mosquitoes are biters, this is not actually the case. Male mosquitoes
eat plant nectar. On the other hand, female mosquitoes feed on animal blood. They need this blood to live
and produce eggs. When a female mosquito bites a human being, it transmits a small amount of saliva
into the blood. This saliva may or may not contain a deadly disease. The result of the bite can be as
minor as an itchy bump or as serious as death.
Because a mosquito can bite many people in the course of its life, it can carry diseases from one
person to another very easily. Two of the most deadly diseases carried by mosquitoes are malaria and
yellow fever. More than 700 million people become sick from these diseases every year. At least 2 million
of these people will die from these diseases.
Many scientists are working on safer and better ways to kill mosquitoes, but so far, there is no
sure way to protect everyone in the world from their deadly bites. Mosquito nets can be placed over beds
to protect people against being bitten. These nets help people stay safe at night, but they do not kill any
mosquitoes. Mosquitoes have many natural enemies like bats, birds, dragonflies, and certain kinds of
fish. Bringing more of these animals into places where mosquitoes live might help to cut down the amount
of mosquitoes in that area. This is a natural solution, but it does not always work very well. Mosquitoes
can also be killed with poisons or sprays. Even though these sprays kill mosquitoes, they may also harm
other plants or animals.
Although mosquitoes may not seem as scary as larger, more powerful animals, they are far more
dangerous to human beings. But things are changing. It is highly likely that one day scientists will find a
way to keep everyone safe from mosquitoes and the diseases they carry
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