外研版（2019）选择性必修第一册Unit 5 Revealing nature Using language课件(共33张PPT)

(共33张PPT)
Unit 5
Revealing nature
Grammar
Past perfect
新教材
Learning objectives
1.To understand the function of the past perfect
2.To learn the use of the past perfect
3.To know something about Lonesome George
新教材
Look at the sentences from the reading passage and
answer the questions.
a.Darwin suspected that the finches had evolved from a
common ancestor,..
b。
Many people refused to believe that living things,including
humans,had evolved from lower forms of life.
1.In sentence (a),which action happened first,"suspected"or
"evolved from a common ancestor"
2.In sentence (b),which action happened first,"refused to
believe”ors“evolved from lower forms of life”
3.What does the structure had done indicate
新教材
a.Darwin suspected that the finches had evolved from a common
ancestor,..
b.
Many people refused to believe that living things,including humans,
had evolved from lower forms of life.
1.In sentence (a),which action happened first,"suspected"or
"evolved from a common ancestor"
In sentence (a),"evolved form a common ancestor"happened
first.
2.In sentence (b),which action happened first,"refused to
believe”or“evolved from lower forms of life
In sentence (b),"evolved from lower forms of life"happened
first.