شرکت در آزمون آنلاین زبان انگلیسی 2 - زبان انگلیسی 2 | آزمون شماره 6776

Charles Dickens once said, “......... on your present blessings, of which every man has many; not on your past misfortunes, of which all men have some.”

Although identical twins, which are born at the same birth, may look the same, their heights often ………. by an inch or two.

More people in the United States have allergies today compared with decades ago. Allergies are bad reactions to things around you or what you eat. In 2010, more than half of the Americans were sensitive to at least one allergen. That was the finding of one survey done by the National Institutes of Health. Allergens are things that set off allergies. Many allergens-such as dust-are found in the air.

Allergens in the air aren’t the only problem. Kids’ food allergies have risen, too. Between 1997 and 2007, the number of kids with food allergies jumped 18 percent. Eating milk products and eggs can give some children rashes. Those foods can even cause some people to have trouble breathing.

What’s behind the spread of allergies? Some scientists think our immune system doesn’t have enough to do. Immune system helps our bodies fight germs, but kids today come in contact with fewer germs than their grandparents did. That’s in part because more medicine is available. Experts say that when our immune system has fewer germs to fight, it can get confused. It attacks other things, such as milk that we drink instead.

Doctors do not know for sure what’s making allergies increase is, but they know how to treat them with medicine. “There is  very good treatment for allergies,” Dr. Nish says, “No one should suffer from symptoms.”

Dust and other allergens that float into your nose are in for a blasta cough or a sneeze, that is! Both are natural reflexes, or responses, to help keep you from getting sick. Let’s have a look at these reflexes: Sneezes start at the back of your throat. Each quick burst can force out up to 40,000 droplets of saliva. The tiny droplets travel at up to 300 miles per hour. Coughs come out of your lungs. Each blast can push out 3,000 saliva droplets as fast as 50 miles per hour. Enough air comes out to almost fill a two-liter bottle.

What is the main idea of the passage?

What does the underlined word “them” refer to?

I always feel … after watching the news on television because of all the war, hunger, death, and poverty all over the world.