单项选择题

Reading is the key to school success and it takes practice. A child learns to walk by practicing until he no longer has to think about how to put one foot in front of the other. A great athlete practices until he can play quickly, accurately, with- out thinking. Tennis players call that "being in the zone". Educators call it "automatically".
A child learns to read by sounding out the letters and decoding the words. With practice, he stumbles less and less. Then automatically, he doesn’t have to think about the meanings of the words, so he can concentrate on the meaning of the text.
It can begin as early.as first grade. In a recent study of children in Illinois schools, Alan Rossman of Northwestern University found automatic readers in the first grade who were reading almost three times as fast as the other children and scoring twice as high on comprehension tests.
"It’ s not I. Q. but the amount of time a child spends reading that is the key to automaticity," according to Rossman. You can test your child by giving him a paragraph or two to read aloud—something unfamiliar but appropriate to his age. If he reads aloud with expression, with a sense of the meaning of the sentences, he probably is an automatic reader. If he reads haltingly, one word at a time, without expression or meaning, he needs more practice.

What should parents choose to test the automaticity of their child().

A. The story the child is familiar most.
B. The passage full of new words.
C. The paragraph new and fit to him.
D. The sentences he has not studied.