1、Unit 3 The environment and usLesson 16【学习目标】1To learn the meaning and simple usages of new words and phrases.2To understand and use the sentence patterns.【学习重难点】1To learn to use some new words to describe air.2To learn to introduce air to others.【学习过程】一、新知学习1What is AIR? We cannot see it, smell it o
2、r touch it, but it is all _ us.2单词翻译。blow_balloon_string_move_sadly_kill_3Finish the sentences with words from the text in the book.(1) Air is important. People and animals need air to _. Plants need air to _.(2) Dirty air is _ for the environment. It can _ people and animals ill. It can also _ plants.二、达标检测1 Blow up a balloon and _ it with a string.2 People and animals need air to _.3 Plants need air to _.
