译林版（2020）选择性必修第一册Unit 1 Food matters Grammar and usage 课件(共35张PPT).pptx
(共35张PPT)
Unit 1
Food matters
Grammar & Usage
-To infinitives as subjects and predicatives
一、写出不定式在句子中做的成分
Revision
To finish the task in a week is very hard.
The big boy managed to pass the exam.
My work is to clean the garden every day.
She was the first woman to swim across the English Channel.
O...