Unit 4 Grammar and usage 课件-2022-2023学年高中英语牛津译林版（2020）必修第一册

Unit 4 Grammar and usage Lack enough sleep time. Cannot fall asleep even if you are very sleepy. Often wake up suddenly in the midnight. Have dreams all the night and feel more tired. Do you have these sleep problems? What factors may lead to sleep problems? Suffer from too much stress. Eat too much or too little. Face a new environment. Have extreme feelings. Have too much noise. Watch frightening films. Some illnesses… Grammar and usage: Think and share How do sleep problems affect our life? Feel sleepy and tired in the day. Don’t concentrate in class / work. Have a poor health / body / memory / appetite. Have depressed feelings. Have a dull skin. Be slow in thinking. Be overweight or very thin. … Grammar and usage: Think and share Below is part of a magazine article about sleep problems. Find out the structure of it after reading carefully. Grammar and usage: Read the passage on P48 // Introduction // Detailed information // Conclusion / What are