2019-2020学年度人教版选修六Unit4Global WarmingPeriod4Grammar教案

Teaching material

NSEFC Book 6 -- Unit 4

Teaching aims

Enable the students to master the usage of the form it is/was... that.....

Teaching important points

How to enable the students to know the structure and the usage of the form it is/was... that....

Teaching difficult points

How to help the students to master the usage of the form it is/was... that....

Teaching aids

tape recorder, slides

Teaching procedures

Step1 Revision

T: First let's check answers. (slide show)

Discovering useful words and expressions. (P28)

1. Charles Keeling collected ______on the carbon dioxide content in the atmosphere over a forty-year period. He found that the amount of carbon dioxide _______ increasing during that time.