206- From the passage , we can understand that .......... . A) no two ethnic groups use the same tongue
B) urban and suburban people have been expressing themselves using different languages for
hundreds of years
C) dozens of languages are spoken by millions of people in Canada
D) geographically and phonetically speaking, Canada lies between America and England
E) having accepted French the formal language of Quebec, the government of Canada has opened the
country to the effects of French
207- It is implied in the passage that, one of the functions of a language is to ................ . A) help us decide where our listener comes from
B) help us find a suitable friend who may help us when we are abroad
C) separate countries from each other
D) allow us to make friends wherever we are
E) provide easier methods to make financial contacts with foreigners
In recent years evidence has accumulated that polyunsaturated fatty acids function in protecting
humans and some laboratory animals from diseases of the arteries and heart such as atherosclerosis.
In this disease, small patches of fatty material, composed mostly of cholesterol, from on the inside
lining of the arteries. As the deposits increase in thickness, they may cut down on the blood flow to
the organs supplied by the arteries until the structures are severely damaged. If this occurs in a branch
of the coronary artery supplying the heart muscle, that portion of the muscle dies, and the person
experiences a painful and sometime fatal heart attack. Another danger of atherosclerosis is that pieces
86 of the fatty deposits may break free and travel in the bloodstream until they lodge in small vessels
and block the flow of blood. This blockage may also cause heart damage, or, if it occurs in the brain,
may damage cells and lead to a grave stroke.