题目内容：

    When you think about a deadly animal, you may think of a shark, a lion, or even an elephant. However, the truth is that the deadliest animal in the world is much smaller and more annoying. 1.And it feeds on human blood, transporting numerous diseases from one person to the next. Figure it out, yet? Yes, it's the mosquito.

The numbers don't lie: According to the World Health Organization, more than 725, 000 people worldwide are killed by mosquito-borne diseases each year. These diseases include malaria(疟疾） dengue fever, yellow fever, and encephalitis, 2."Being able to adapt easily to new environments is one of the reasons why mosquitoes are the most deadly, "Bums Blackwell, an expert in pest control said.

3.Mosquitoes have learned to lay eggs in as little as a few small drops of water and each female mosquito can lay between 50 and 500 eggs once. Their populations also reach the highest point at different times in different areas all over the world, making it nearly impossible to avoid being bitten4.

In areas where there' re too many mosquitoes, local authorities try to control the population through routine pesticide(杀虫剂）applications. "We should protect ourselves by avoiding places where there is too much water, "said Bernard Cohen, MD, a professor at the Johns Hopkins University School of Medicine. 5. Wear bug repellent(驱虫剂）that contains DEET(up to 30 percent)when heading outdoors, and reapply it about every four hours.

A.Most of the diseases can be cured in a short time.

B.There are more than 100 varieties of this thing on earth.

C.He also stresses that a little protection will go a long way.

D.And every bite increases the risk of getting a serious disease.

E.Mosquitoes take much interest in getting in touch with children.

F.Malaria is the most horrible, killing at least 600, 000 people a year.

G.Another reason the insects are so deadly is that they produce quickly.