Unit 4 Sharing 单词学案-2022-2023学年高中英语人教版（2019）选择性必修第四册

Volunteering doesn't only improve your life，but also the lives of others. 志愿活动不仅能改善你的生活，还同样改善别人的生活。 B7U4 Sharing (Words and expressions) 课前预习案和课中探究案 【自主学习一】听录音，跟读单词。 【自主学习二】根据句子语境,理解划线单词的意思，指出其词性，并翻译句子。 1. Experience is what matters ─ age is of secondary importance. Firstly, it's expensive, and secondly, it's too slow. 2. Everything was covered with a thick layer of dust. She had matted（蓬乱的） hair and torn dusty clothes. I kicked a dustbin very hard and broke my toe. 3. I'll call in at the chemist's on my way home. I'm doing physics, biology and chemistry. Hydrogen combines chemically with oxygen to form water. Use of these chemicals may present a fire risk. 4. The trees provide shade for the animals in the summer. We went to find somewhere cool and shady to have a drink. These people have been living for years under the shadow of fear. 5. Poor housing and unemployment are the main problems. That country spent a lot of money to house the refugees. 6. The conditions were ripe for social change. This helps to ripen new growth and makes it flower profusely（大量地）. 7. The burglars gained entry to the building after disabling the alarm. There is a lack of adequate provision for disabled students. She is a shining example of what people with disabilities can achieve. 8. Two out of three people think the President should resign. He was resigned to never seeing his birthplace again. It is with great regret that I accept your resignation. 9. You shouldn't have done it without consulting me. The decision was taken after close consultation with local residents. They hired a firm of consultants to design the new system. 10. Being back with their family should provide emotional stability for the children. Doctors said his condition was serious but stable. By means of test, the system can work stably and achieve the desired objectives. 【课堂探究一】词形变化：按要求填相应的单词，并在括号内填写中文意思 (仔细研读【自主学习二】句子，掌握和总结规律。) 1._____________ adj.中学的;次要的→____________