As a result, walking around all day with a smile on your face will make your mood happier. Not only will you be happier but your smile might lead to the release of dopamine in someone else's brain—now that truly shows the power of a smile. 文章大意:真笑和假笑都能给我们带来快乐。 1.When we smile sincerely, ________. A.bones in our face become thin B.muscles in the face become smaller C.the brain's dopamine neurons stop working D.the brain's motor cortex starts to work 答案:B 细节理解题。根据第二段“The muscles that attach to these bones become smaller when we are happy or when we want to laugh”可知,答案为B。 2.The underlined word “prompts” in Paragraph 4 can be
replaced by
________. A.causes B.charges C.controls
D.reduces 答案:A 词义猜测题。根据第四段“The release of dopamine in the front half of our brain is accompanied by a real smile”可推断,prompt意为“引起”,故答案为A。 3.What is the RIGHT order of the following actions? ①more blood flows into the brain ②smile ③shape of the thin facial bones is distorted ④release of dopamine A.②③①④
B.②①③④ C.②①④③
D.②④③① 答案:A 细节理解题。根据末段“When we smile... slightly distorts (扭曲) the shape of the thin facial bones”和“... leads to an increase in blood flow into the brain and then increases the release of dopamine”可知,答案为A。 4.What can we conclude from the passage? A.Real and fake smiles are started by the same part of the brain. B.It's hard to know the difference between real and fake
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