Time goes by fast when we have nothing to do.
The ten minutes’ break is important to students.
The brain works in different ways in different situations.
第1题：
Many scientists have been probing psychological problems.
A．solving
B．exploring
C．settling
D．handling
第2题：
What can be inferred about intelligence testing from Paragraph 3？
[A] People no longer use IQ scores as an indicator of intelligence.
[B] More versions of IQ tests are now available on the Internet.
[C] The test contents and formats for adults and children may be different.
[D] Scientists have defined the important elements of human intelligence.
第3题：
A. have been working out
B. have been working
C. have been working on
D. have been building on
第4题：
22． In a recent survey at one school，scientists found many students liked_________
A． vegetables
B． unhealthy food
C． fruits
D． healthy food
第5题：
Have you found an answer ________ the question?
A、of
B、for
C、on
D、to
第6题：
What was scientists' understanding of cryptic species?
A．They occurred in equal numbers in all biogeographical regions.
B．They were mostly found in insects and reptiles.
C．They were likely to be in tropical rather than temperate regions.
D．Both Ｂ and Ｃ.
第7题：
Scientists have made great contributions()development of our human beings.
A. to
B. on
C. with
第8题：
A. find
B. to be found
C. to find
D. found
第9题：
A.have been proved
B.have proved
C.has proved
D.has been proved
第10题：