Unit 4 A glimpse of the future Using Language 课件-2023-2024学年高中英语外研版（2019）选择性必修第三册

Unit 4 A glimpse of the future Using language 【版本：新外研　册别：选择性必修三】 1 Grammar I IV Vocabulary building II Listening & speaking III Homework contents 2 I Grammar 3 Look at the sentences and answer the questions. Why is 50 per cent singular in sentence (a) but plural in sentence (c)? What are the subjects in sentences (b) and (d)? Are they singular or plural? a … 50 per cent of my time was spent researching new restaurants. b Every recommendation she gives me is great ... c … almost 50 per cent of US jobs are at risk from automation in the next 20 years. d … none of us is prepared for the challenges of AI. P41 a … 50 per cent of my time was spent researching new restaurants. c … almost 50 per cent of US jobs are at risk from automation in the next 20 years. Q1. Why is 50 per cent singular in sentence (a) but plural in sentence (c)? Because in sentence (a), the part “50 per cent” is followed by the uncountable noun “time”, while in sentence (c), the part “50 per cent” is followed by the countable noun “job” in its plural form. Look at the sentences and answer the questions. P41 b Every recommendation she gives me is great ... d … none of us is prepared for the challenges of AI. Q2. What are the subjects in sentences (b) and (d)? Are they singular or plural? In sentence (b), the part “Every recommendation” is the subject. In sentence (d), the part “ none of us” is the subject. Both are singular. Look at the sentences and answer the questions. P41 Task 1: Now look for more sentences following this rule in the reading passage, and summarise the use of subject-verb agreement in your own words. Nearly every job is potentially at risk in the long run. (P39) 2. One thing I think we all agree on, though, is that saying “My AI did it!” won’t be any excuse for illegal or immoral behaviour. (P39) 主谓一致是指主语和谓语在人称和数等方面的一致，当主语是不定代词或含有修饰语时，谓语动词的形式要依据主语所表达的单、复数概念而定，而不仅仅是取决于简单的外在形式。 Subject-verb agreeme