Unit 1 Our living planet Grammar and usage (倒装+强调)课件-2022-2023学年高中英语牛津译林版（2020）选修第一册

Unit 1 Our living planet Grammar and usage Inversion (倒装) 1) Do you know which day is the longest and which day is the shortest in a year? Summer solstice /ˈsɒlstɪs/ & winter solstice. 2) Are there any possibilities that lengths of days and years are changing? Yes. They are always changing. Step 1 Warming up Questions: Read for the structure! 1) What do we seldom doubt? 2) What are the main evidences for the changing lengths of days and years? 3) What may the expression “24/7” have to be replaced with? Read the article from a science website on page 6 and answer the following questions. 1. Seldom do we doubt that... (L1) 2. Under the ocean lies the evidence for the changing lengths of days and years. (L6) 3. Here is an example. (L9) 4. ..., not only do scientists conclude that the lengths of days and years have changed in past eras. (L15) Step 2 Exploring and working out the rules Read for the INVERSION! 部分倒装 完全倒装 完全倒装 部分倒装 • We sometimes change the usual subject-verb order in a statement to emphasize an idea, or to make the sentence structure more balanced. • We can use the inverted order when a sentence begins with: ◎ an adverb like (1) ______, there or an adverbial phrase about a location. ◎ a word with a negative meaning like never, (2)________ and hardly; ◎ a phrase like not only. Finish “Working out the rules” of part A on page 6. here seldom Turn to P92-93 for help! Here comes the bus. Out they rushed. Can you tell the difference between the two sentences. If the subject of the sentence is personal pronoun, we needn’t to use the inverted order. Grammar notes: Only by practice can we learn a language well. 当only引导方式状语的时候，句子用部分倒装句。 Translation 1: 1. 只有用这种方式我们的环境才会得到改善。 Only in this way will our environment be improved. 2. 只有当你的身份被核实了，你才能进来。 Only when your identity has been checked, you will be allowed in. Not only does my mother go to work every day, but she also devotes her time to helping in the community. 当not only放在句首的时候，句子用部分倒装句。 Translati