2021美国学术能力评估考试（SAT）真题模拟04-14

1、x, y, and z are positive integers. Which of the following lists all the possible ways for x + y + z to be an odd number?
I. One of the numbers is odd.
II. Two of the numbers are odd.
III. Three of the numbers are odd.（单选题）

A. I

B. I and II

C. I and III

D. II and III

试题答案：C

2、How would the author of Passage 2 react to the description in Passage I of chimpanzees "using human-like interactions such as hugs, kisses, pats on the back, and ticking" (lines 10－11) ?（单选题）

A. With caution since such activities mask a far fiercer and less tractable side of chimps

B. With approval since chimps are our closest relatives and ought to be viewed as cohorts

C. Angrily since such myths contribute to the illegal trade in baby chimps as exotic

D. Cynically since it is exactly such activities that make chimps superlative performers

E. With hope since such activities suggest that chimps can eventually be reintegrated with their peers

试题答案：A

3、There are 140 people in a room. What percent of the original group would remain if 21 people were to leave?（单选题）

A. 5%

B. 15%

C. 65%

D. 75%

E. 85%

试题答案：E

4、The first two terms of a sequence are 243 and 81. Each term after the first is equal to one-third of the previous term. What is the value of the eighth term?（单选题）

A.

B.

C.

D.

E.

试题答案：B

5、Effective emergency medical technicians must respond ______ to a patient in need and avoid working ______, erring in their haste.（单选题）

A. affably; gently

B. humanely; painstakingly

C. swiftly; meticulously

D. obstreperously; perfunctorily

E. exigently; cursorily

试题答案：E