上教版高一必修二Unit 1 No limits第二课时学案(教师版+学生版)

中小学教育资源及组卷应用平台 高中英语 上教版 高一年级 第一学期 必修二 第一单元 第二课时 学案（教师版） 课题：Reading and interaction II: Blame your brain (deep reading) 课时学习目标： 能用语篇中的关键词汇复述课文； 能理解语篇中的交际策略； 能表达自己对于青少年冒险的看法。 I. Review the text and check the summary 1. Why is the passage titled “blame your brain”? What does it imply? We blame teenage brain for their risk-taking because dopamine levels are sometimes lower in teenagers than they are in children. Teenagers’ frontal contex which is involved in controlling feelings and making good decisions has not fully developed, so they take more risks. 2. Besides dopamine and frontal cortex, what else contributes to their taking risks? Pressure from friends or, we can also say, peer pressure. 3. What can we do about teenagers’ risk-taking? -Try to make good choices and be independent. -Don’t get pushed into doing things by friends. -Try other exciting things, such as roller coasters, skateboarding and surfing. Check the summary The passage explains the reasons why teenagers usually take more risks than children and adults, and offers some suggestions on how to deal with teenage problems. Scientists believe that teenage risk-taking is closely related to the levels of a brain 1 chemical called dopamine, which causes feelings of 2 enjoyment/pleasure. Teenagers are found to have 3 lower levels of dopamine than children, so they have to take more 4 risks to experience the same excitement. Scientists also believe that teenagers are more likely to do 5 dangerous/frightening things without thinking about the results due to the 6 physical changes in their brains. Their frontal cortex is not fully 7 developed, so their ability to make good decisions is limited. Pressure from friends is the third factor that turns teenagers into 8 risk-takers: they have a strong need to look good in front of their friends. They also try to earn 9 respect from their friends by doing dangerous things such as fighting or not wearing seat belts. Experts suggest that there are no easy 10 solutions to these problems. Teenagers should try to make good decisions, act independently and find safe sources of excitement. II. Deep reading Identify communicative strategies (1) ...some scientists believe that dopamine leves are sometimes lower in teenagers than they are in children. a&b Several strategies are used in this sentence. First, the writer uses “scientists” and the present tense of “are” to indicate the information is correct enough to be true. But at the same time, the writer uses “some” before “scientists” to make it known that not all scientists believe this information is reliable. This way, the writer leaves room for reasonable doubt. Even teenagers who are not usually big risk-takers may suddenly do something dangerous because they want to show off or fit in. b The modal verb “may” in the sentence is used to modify the tone of the statement, indicating that it is ... ...