Unit 4 Looking good, feeling good Grammar and usage课件 2023-2024学年高一英语牛津译林版（2020）必修第一册

Unit 4 Period 2 Grammar and usage 新 课 导 入 Review A restrictive relative clause modifies a ______ , ________or ___________ before it. We use relative pronouns or relative adverbs to introduce restrictive relative clauses. We use (1) ________ for things, and (2) ________ and ________ for people. We can use (3) _______ for both things and people. We use (4) _________ to show possession. which who that whose noun pronoun noun phrase whom 课 堂 学 习 Do you have sleep problems? What are the effects of sleep disorders on physical health? 课 堂 学 习 Below is part of a magazine article about sleep problems. Find the sentences with restrictive relative clauses in the article and fill in the box below. The first one has been done for you. Do you remember a time when you had no worries stopping you from getting a good night’s rest? Unfortunately, your happy childhood is probably a thing of the past. A recent survey has found that many people suffer from sleep problems. Some are unable to fall asleep, some wake up in the middle of the night, and others simply do not get enough sleep. One of the reasons why people fail to get a good night’s sleep is pressure from school or work. Noise pollution and light pollution in big cities may also contribute to sleep problems. In the short term, people with sleep problems often feel tired and have trouble concentrating. In the long term, they may be at increased risk of having a poor memory, being overweight and suffering a heart attack. Sleep problems are especially dangerous for teenagers. They are still growing, and night is the time when their bodies grow faster. Teenagers who do not sleep well may experience situations where body development slows down, and their health suffers. So, if you have trouble getting a good night’s sleep, it might be time to make some changes in your lifestyle. Working out the rules The relative adverb where refers to a place, the relative adverb when refers to _______, and the relative adverb why refers to __