Unit 1 Food Matters Grammar and usage 导学案-2023-2024学年高中英语牛津译林版（2020）选择性必修第一册

Unit1 Food matters Grammar & usage Teaching aims： By the end of this section, students will be able to: 1.Identify the use of to-infinitives as subjects and predicatives; 2. Work out the rules of to-infinitives as subjects and predicatives; 3. Use the right forms of to-infinitives to finish tasks of completing a magazine article; 4. Apply to-infinitives in new situations. Task1 Lead in Do you prefer to eat out or cook at home? Why? _______________________________________________________________________________ Task2 Identifying the rules Read the blog entry again and answer the detailed questions Q1: What was the writer’s first thought at mealtimes not long ago? (L1) The first thought at mealtimes was _________________________________________________. Q2: What was a social activity for the writer to enhance friendship?(L2) _____________________________________________________________was a social activity. Q3: What is not difficult for the writer to do when he came across the cooking app?(L8) It was not that difficult __________________________________________________________. Q4: What is the writer’s plan about eating?(L13) His plan is ____________________________________________________________________. Task 3 Exploring the rules Task 4 Working out the rules 一 动词不定式作主语 1. To say is one thing and to do is another. Tip 1: 做主语时谓语动词一般用_______形式 To employ a security officer _____(be) standard practice for this company. 2.It is difficult for me to finish all the tasks. Tip 2:动词不定式作句子的主语时可以用形式主语________代替，将不定式置于句末，平衡句子结构。 it 作为形式主语时，常见句型有： (1)It + is +adj. + ( for sb.) to do sth. ( adj. 修饰物） (2)It + is +adj. + ( of sb.) to do sth. ( adj. 修饰人） (3)It + is + n. + to do sth (4)It takes sb. some time/money/effort to do sth Practice: ____ is a good idea ______(look) up the word in the dictionary. ____ is important for the software ____________(update). 二 动词不定式作表语 1. His plan is to invite his friends over at the weekend to show new-found skills. 2. My wish is