The biggest difference lies in____
A.how emotional responses are controlled
B.how intensive emotions are expressed
C.how long negative emotions are displayed
D.how often positive emotions are shown

Young children______
A.make amazing progress in controlling their emotions
B.take time to control their facial expressions
C.spend a long time learning to read others’ emotions.
D.are sensitive towards others’ emotions.

The phrase “this evidence” in line 4 of the third paragraph refers to______
A.a biological underpinning for humans to express emotions
B.the fact children can control their feelings
C.the fact that children are good at recognizing others’ emotions.
D.human facial expressions

A.electric
B.contagious
C.periodic
D.suspicious

A.inhabit
B.imagine
C.continue
D.disappear

A.laboratory
B.politician
C.documentary
D.popularity

Liz: “Thanks for the nice gift you brought to us!"Jennifer:_________
A.All right. Do you know how much it costs?
B.Not at all. Don't mention it.
C.Actually speaking, I myself don’t like it.
D.Welcome! lt’s very nice of you.

The driver was………….
A.serious injured
B.seriously injured
C.injure seriously
D.injured serious

______(51)
A.as
B.that
C.when
D.where

_______(53)
A.understand
B.understanding
C.know
D.to understand