题目内容

【题目】—Do you know________ what your dream is?

—Yes. I’ll stick to my dreams and work hard to make my dream come true.

A.exactlyB.totallyC.widelyD.hardly

【答案】A

【解析】

句意:——你准确地知道你的梦想是什么吗?——是的,我会坚持我的梦想,努力工作让我的梦想成真。

考查副词辨析。exactly准确地;totally全部地,整个地;widely广泛地;hardly几乎不,根据答句I’ll stick to my dreams and work hard to make my dream come true可知,应该是准确地,故选A

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ask dangerous difference good importance one

allow others possible sleep something wake

Many of us have had this experience: we lie down in a bed but not our own ones, perhaps at a friend's house or in a hotel room, and find it difficult or1 to fall asleep. Is it because the bed is uncomfortable? Maybe, but perhaps there can be2 reasons.

According to a new study, an3 reason is what the scientists call "first night effect" . They believe that one side of the brain acts as a "night watch" to warn us about potential 4 . It makes us stay5 in a new environment.

For the study, 35 young volunteers6 to sleep in a sleep lab for several days.

Meanwhile, researchers watched their brain activities.

According to the researchers, on their7 night, the left brains were more active than the right brains and people had a hard time sleeping. However, left-brain activity decreased as days went by, falling even to the point of complete calm. In this process, the participants got an increasingly8 sleep experience.

The findings suggest that the different rhythms of the sides of the brain affect our sleep. When the two sides work9 , the balance between them is broken. So, the brain can't relax and is sensitive to10 strange in the surroundings.

If you have ever had what you think is "first night effect" , researchers suggest that you bring your own pillow or sleep in a room similar to your bedroom next time you sleep away from home.

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