备考四六级考试阅读的课堂笔记
23. The word bested most probably means ________.
A) beat B) envied
C) caught up with D) made the best of
注：词汇题，根据第5段末句的意思可推断为A选项。
24. Which of the following statements is true?
A) Active smokers in general performed better than deprived smokers.
B) Active smokers responded more quickly than the other subjects.
C) Non-smokers were not better than other subjects in performing simple tasks.
D) Deprived smokers gave the slowest responses to the various tasks.
注：C选项是第一个实验结果deprived smokers and non-smokers performed equally well
Questions 16 to 20 are based on the following passage:
16. According to the author, the sonar system of bats
is an example of the idea that ____.
A) this is the age of technological triumphs
B) modern machines are inefficient
C) living mechanisms are often more efficient than man -made machines
D) artificial imitations are always less efficient than living mechanisms
17. The author suggests that the sonar system of bats ____.
A) was at the height of its perfection 50 million years ago
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