人教版必修一Unit 2 English around the world 课时作业word版有答案（7份打包）.zip

Unit 2 English Around the World reading课时作业
第一节.阅读理解
A
Watching a 3D movie can more than double the concentration powers and cognitive (认知) processing of children, a new research claims.
A study made by visual technology firm RealD and led by child psychologist Dr. Richard Woolfson suggests that children aged between 7 and 14 experienced twice the cognitive processing speed and performed better in testing after watching 20 minutes of a 3D film. This is despite suggestions that attention spans (时期) in children have shortened in the last decade due to unlimited access to entertainment, including on­demand TV, gaming and social media. A 2015 study claimed that watching 3D content had a similar effect to brain­training exercises.
Consumer psychologist Mr. Fagan said that the increased stimulation (刺激) found in watching something in 3D “exercised” the brain and improved performance in the short term. “3D films can play the role of ‘brain­training’ games and help to make children ‘smarter’ in the short term，” he said. “The shortening of response time after watching 3D was almost three times as big as that gained from watching 2D; in other words, 3D helps children process aspects of their environment more quickly. This is likely to be because 3D is a mentally stimulating experience which ‘gets the brain's juices flowing’．”
The experiment saw children given a range of cognitive t