2021年考研真题2021年考研英语真题和答

案

2021年考研英语真题和答案

Section I Use of English Directions: Read the following text.Choose

the best word(s) for each numbered blank and mark A, B, C or D on ANSWER SHEET

1.(10

points)Research on animal intelligence always makes me wonder just how smart humans are.

1the fruit-fly experiments described in Carl Zimmer’s piece in the Science Times on Tuesday.Fruit flies who were taught to be smarter than the average fruit fly

2 to live shorter lives.This

suggests that 3 bulbs burn longer, that there is an 4 in not being too terrifically bright.Intelligence, it 5 out, is a high-priced option.It

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